|
Killard Excavation - Sewer Projects
|
List of Sewer Projects
Current Projects BCV Networks Alliance - Edmondson Park Sewer Main Abigroup - Coombabah Wastewater Plant Stage 5 Upgrade Bovis Lend Lease - Barrangaroo PSP Alliance - Appin Completed Projects
Christie Civil - Stormwater works at IKEA at Tempe Nace Civil - Dardenelles Anzac Village at Narabeen Barangaroo Delivery Authority - Barangaroo at Sydney John M Daly - Harrington Grove Christie Civil - Nightworks at Frasers Broadway The Reed Group - Northwest Precinct Works: Sewer work lot 16 - Kellyville, Sydney City of Ryde - Darvall Road, Denistone West The Reed Group - Northwest Precinct Works: Sewer work lot 7 - Rouse Hill, Sydney SewerFix - East Esplanade in Manly, Sydney The Reed Group - Northwest Precinct Works: Sewer work lot 13 - Alex Avenue, Kellyville, Sydney SewerFix - Broadway, Sydney TRN - Campbelltown Road, Glenfield BCC Networks Alliance - Hornsby PSP Alliance - 3 Towns Sewerage Upgrade Project: Glossodia, Freemans Reach, and Wilberforce PSP Alliance - Freemans Reach SewerFix - Buckland Street, Chippendale and Beaumont Street, Darlington Transfield Services - Harris Park, Five Dock PSP Alliance - Freemans Reach John Holland - Rouse Hill BMD Constructions Pty Ltd - Middleton Grange Sydney Anglican Schools Corporation - Worcester Road, Rouse Hill Ward Civil - The Village, Balgowlah BMD Constructions Pty Ltd - Kurnell Leighton Contractors Pty Ltd - T-Way Windsor Road, Kellyville Nace Civil Engineering Pty Ltd - Prince Henry Hospital, Little Bay BCC Networks Alliance - Heathcote National Park BCC Networks Alliance - Heathcote
Current Projects BCV Networks Alliance - Edmondson Park Sewer Main The works include main laying and micro tunnelling. Also included in the works are all associated works such as construction of manholes, concrete encasements, installation of tracer wire, flow gauging works, manhole lining system, stub mains, creek erosion protection, grouting annulus, connections, thrust blocks, pits and chambers. Detailed scope of works include: - Excavate, lay, bedding, and backfill of trenches by installing Butt and PE welding and installation of approximately 1230 metres of DN315 PE100 PN8 pipe via open trench along Camden Valley Way, Croatia Avenue, and Dalmatia Avenue, including manholes with HDPE lining stub mains, and creek crossing.
- Butt and EF welding and installation of approximately 353 metres of DN315 PE100 PN8 pipe via micro tunneling (multiple bores along Camden Valley Way, including manholes with HDPE lining, stub mains and connection to existing sewer.
- Installation of 400 ID polycrete jacking pipe.
- Multiple entry and exit pits of drilling rig including preparation, excavation, shoring and backfilling of those pits.
- De-bead all welds completely internally without digging into parent pipe wall.
Last updated: 15/12/2011 AbigroupAbigroup - Coombabah Wastewater Treatment Plant Stage 6 Upgrade Project - Installation of piping
- Temporary trench support
- Allowance of safe access to trenches
- Allowance of safe access to form/box and place thrust blocks on all horizontal changes in one direction
- Allow to cut into manholes and box/pour penetrations
- Allow to set up and support all cast in spools
- Install pipe supports and provide concrete plinths
- Pressure testing of installed piping
- Installation and removal of temporary structures, including fencing
Last updated: 15/8/2011
August 2011
PSP Alliance - Appin Project aims to provide a sewerage treatment scheme for the town of Appin, which is located to the south of Campbelltown. This scheme is known as the "Appin Wastewater Scheme" and involves construction of a new pressure sewerage reticulation and transfer system to service approximately 500 properties. The scope of works to be executed includes all works necessary for the installation by open trenching of sewerage transfer mains and the installation of associated structures (inclusive of isolation valves, manual air valves, scour chambers, automatic air release facilities, jetting points, flushing points ect) as per the technical specification. The scope of work in detail as follows: - Installation and maintenance of traffic control measures
- Installation and maintenance of environmental controls
- Excavation and installation of sewerage transfer pipework
- Installation of structures, including flushing points, jetting points, manual air valves, scour chambers, automatic air release facilities ect
- Backfilling of the transfer mains
- Hydrostatic pressure and compaction testing
- Connection of pipework to services
Last updated: 11/8/2011 July 2011Bovis Lend Lease - Barrangaroo Project is a Temporary Stormwater Diversion to be laid within the existing Barrangaroo South site. The project involves: - Supply and installation of 1, 200mm diameter concrete stormwater pipe to the Eastern side of the site to divert the existing 1, 500mm stormwater pipe to cross the D Wall at 90 degrees. This diversion will take place within Stage 1A Site, Hickson Road and the existing footpath.
- Supply and installation of 1, 500mm diameter concrete stormwater pipe to the Northern side of the site to divert the existing 1, 650mm stormwater pipe to cross the D Wall at 90 degrees. This diversion will take place within the existing site.
- Supply and installation of 1, 500mm diameter concrete stormwater pipe at Line B from B6 to Pit B2 parallel to the proposed basement wall inclusive of bends, pits, and connections.
- Dewatering including construction of dissipation basins and 6-inch pumps used
- Grout injection of existing ballast to stop influx of water
- Temporary shoring
- Supply and install steel encasement protection to pipe work at intersection of pipe and diaphragm wall
- Had divers access end of stormwater from the harbour to clean out sediment, shells and other blockages
- Installed 1, 800 diametre plug to prevent flows from coming back up the stormwater pipe
The Barrangaroo project was recently featured on the news for Channel 10, Channel 7, and Sky News with NSW Premier Barry O'Farrell visiting the site. Numerous Killard Excavation Pty Ltd employees and machines are shown working on the project during the news items. Please click the link below to watch the Channel 10 report: http://ten.com.au/news.htm?movideo_m=138000 Last updated: 2/11/2011 Completed Project January 2011 - April 2011 Christie Civil - Stormwater works at IKEA at Temp Installation of 375mm to 1650mm RCPs, including pits and CDS units.
Nace Civil - Dardenelles Anzac Village at Narabeen nstallation of 300mm to 600mm RCPs, including pits and CDS units. The specific items of work include the following: - Preparation of an Environmental Management Plan (EMP) and procedures to address environmental management
- Preparation of a Safe Work Plan and procedures to address safety and incident management
- Preparation of a Traffic Management Plan (TMP) which will address all temporary and permanent controls to traffic and parking. This TMP will address and show all roadway plating, signage, barrier lighting ect. to ensure continuity of traffic and satisfactory parking arrangements on site
- Physical exposure and confirmation of levels of all existing underground services which cross over proposed works
- Saw cutting of existing services including bitumen and concrete road surfaces
- Construction of concrete road including sub-soil drainage and kerbs
- Excavation of the required trench system to the nominated standard depth of trench below roadway condition and in areas of non-trafficable condition
- Removal of excess spoil
- Shoring of all trenches in accordance with Workcover Authority NSW and other statutory requirements
- Installation of the pipework and fittings required
- Backfilling of all trenches with approved materials in layers
- Compaction testing as required
- Reinstatement of all existing services to match pre-existing condition for quality and thickness of surface
Where pipe services are required to be underground, the work shall include excavation, backfill, and surface restoration. Where services are to be installed in existing buildings, work includes for diamond drilled holes through concrete floor slabs and making good to all penetrations. Last updated: 12/10/2011
December 2010 - July 2011 Barangaroo Delivery Authority - Barangaroo at Sydney The works will involve drilling 31 boreholes on the northern end of the site, 18 boreholes on Hickson Road, and the material extracted will be sampled and tested. 18 test pits will also be excavated with soil removed from the test pits temporarily stockpiled next to the pit. These works are in preparation for sewer works to occur on site and on Hickson Road. The sewer works involve the construction of temporary sewerage bypass, diversion of existing sewer lines, and diversion of existing stormwater services. Breakdown of works are as follows: - Works will commence with the excavation and concrete encasement of the existing DN450mm stormwater line approximately 55 metres long, followed by the excavation and concrete encasement of the second existing DN450mm stormwater line approximately 58 metres long.
- Following on from this we will excavate, lay backfill with excavated material, test, and commission a new DN450mm stormwater line approximetaly 132 metres in length, including the building of manholes and interconnection with exisiting stormwater lines. Stormwater lines that are no longer required will be sealed.
- Dismantle the exisiting SPC compound fence and carport.
- Excavate around and concrete encase the existing SWC 225mm diameter sewer rising main which is approximately 80 metre in length.
- Excavate for and construct a reinforced concrete slab over the existing SWC 400mm diameter overflow sewer from SPS 0014. This will be 6 metres wide by approximately 60 metres in length and will be laid to finish flush with the existing ground level.
- Location and interception of the existing SWC 300mm sewer at Hickson Road where we will construct a manhole. A manhole will also be constructed in the access drive with interconnecting pipework and the area will be backfilled and reinstated.
- Interception of the existing 150mm diameter sewer outside the SPC fence line and we will excavate, lay backfill with excavated material, test, and commission a new DN150mm sewer line approximately 280 metres in length, including the installation of the manholes along the route to the new SPS.
- Excavation and installation of the SPS sewer pumping system including the wet well, mechanical equipment, pumps ect., including the electric cabling to adjacent switchboard. These works will involve dewatering of shaft excavation.
- Installation of DN150mm sewer rising main from new SPS to existing SPS 1120. The works will involve the installation of pipework both underground, where there are to be entrances constructed, and above ground. The above ground pipework is to be attached to existing concrete plinth along the existing fence line.
Other services Killard Excavation Pty Ltd will provide include traffic management and the supply, installation, and relocation of temporary safety fencing where required.
Last updated: 11/8/2011
|
| |
 |
| Barrangaroo
|
|
|
 |
| Barrangaroo
|
|
|
 |
| Barrangaroo
|
|
|
 |
| Barrangaroo
|
|
|
June 2010 John M Daly - Harrington Grove Scope of works included: - Site establishment
- Installation and maintenance of traffic control measures
- Installation and maintenance of environmental controls
- Excavate sewer pipe trench in O.T.R. including shoring where required
- Excavate for and construction of standard access chambers including external vertical drops, step irons and CD. Inlets as required
- Excavate for and construction of segmental manhole
- Excavate for and concrete encasement of 225m sewer main
- Excavate for, supply, and installation of sewer laser bore in all classes of material
- Install DN450mm mild steel bore encasing with DN225mm UPVCP carrier
- DN500 mild steel bore encasing with DN300 UPVCP carrier
- Trench compaction test
Last updated: 5/8/2011 May 2010 - November 2010 Christie Civil - Nightworks at Frasers Broadway The new development 'Frasers' at Broadway required additional stormwater drainage to run down Abercrombie Street to an existing brick ovoid drain at Broadway. Involved the installation of 200 metres of 1500mm diameter concrete reinforced RCP stormwater pipe under electrical and communications cables, brought down the middle of Abercrombie Street and connected to the brick ovoid drain. Includes break into ovoid pipe, construction of 4m x 2m wide pit 3.8 metres deep at intersection of Abercrombie Street and Broadway, construction of 2m x 2m stormwater pits up to 3.8 metres deep, and shoring and steel plate design in order to open Abercrombie Street up for traffic during the day. Pits were precast on site and dropped into position. Installed a supported section of pipe over the ovoid pit where it was crossed. Works undertaken between ovoid and electrical conduits was under supervision of an Energy Australia representative. A specifically designed and complex pit was constructed at the ovoid drain / stormwater connection. Designs were obtained for steel road plates and shoring to ensure they would withstand vehicle loading over penetrations. Killard Excavation Pty Ltd worked with both the council and community to ensure minimal impact to residents and traffic. January 2010 - February 2011 The Reed Group - Northwest Precinct Works: Sewer work lot 16 - Kellyville, Sydney This project involved the installation of 3km of DN300, 375, and 450 polypropylene pipe SN10, 000 in Kellyville, Sydney. The project was commission d in order to supply a new trunk sewer main to the growing population in the Northwest Sydney area. Works included site establishment, compound setup, management of deliveries, installation of pipework through sensitive bushland easement, thrust bores across roads, and reinstatement of works. Concrete manholes were constructed at both 1200mm and 1800mm in diameter, two coats of epoxy seal was applied as per EPM 2, and induct / educt vent shafts were erected along the line. Connections to existing sewer infrastructure established via the implementation of a flow management plan. Sewer main laying to Sydney Water standards and supervised by Australian Water. City of Ryde - Darvall Road, Denistone West Due to weed infestation and inadequate stormwater control at the upstream point of Warrawong Creek in Denistone West, as well as a requirement to upgrade Darvall Road, the existing stormwater lines were decommissioned / made redundant and new 900mm and 600mm RCP stormwater pipes were installed. Works commenced in council grass land, crossed Darvall Road and fell away down the steep bank into Warrawong Creek. Included clearing works, excavation of access down the steep bank, installation of stormwater pipes, construction of insitu pits ranging in size from 1200mm x 1200mm up to 2400mm x 1200mm and up to 7 metres deep, construction of an energy dissipater, and the detention pond upstream of creek. Community notifications included newspaper articles and the program was tight as full road closure was in place. New stormwater was cut into existing line, and redundant pipes were grout filled or removed. January 2010 - February 2010 The Reed Group - Northwest Precinct Works: Sewer work lot 7 - Rouse Hill, Sydney It involved the installation of 700 metres of DN1050 RCP's including precast pits, headwall, dissipator and security fencing. The scope of works included: - Site establishment
- Installation of precast pits, pit risers, converter slabs, and access covers
- Supply and place concrete blinding and benching
- Supply and installation of valves spindle, shroud pipe, shroud pipe support, and surface box
- Supply and installation of hydrophillic seals at pipe penetration
- Supply and install infill at pipe penetrations to ensure water-tightness
- Supply and installation of structures, including fencing
- Supply, installation, and maintenance of environmental controls
Sewer main laying to Sydney Water standards and supervised by Australian Water. January 2010 - February 2010 SewerFix - East Esplanade in Manly, Sydney Involved the installation of a 3m x 2.5m overflow concrete chamber over an existing DN300 VC pipe at the intersection of Stuart Street and East Esplanade in Manly. Works included traffic management, the establishment of work area, and the writing of and adherence to a flow management plan. December 2009 - March 2010 The Reed Group - Northwest Precinct Works: Sewer work lot 13 - Alex Avenue, Kellyville, Sydney This project involved the installation of 1km of DN300, 375, and 450 polypropylene pipe SN10, 000 in Kellyville, Sydney. The project was commissioned in order to supply a new trunk sewermain to the growing population in the Northwest Sydney area. Works included site establishment, compound setup, management of deliveries, installation of pipework through sensitive bushland easement, thrust bores across roads, and reinstatement of works. Concrete manholes were constructed at both 1200mm and 1800mm diameter, two coats of epoxy seal was applied as per EPM 2, and induct / educt vent shafts were erected along the line. Connections to existing sewer infrastructure established via the implementation of a flow management plan. Sewer main laying to Sydney Water standards and supervised by Australian Water. November 2009 - January 2010 SewerFix - Broadway, Sydney This project involved peripheral works connecting DN375 sewer microtunnelled under Broadway in Sydney city, including the installation of precast sewer pits, property connections, and tie-ins. Works were undertaken in a sensitive city area which required stringent community protocols and segregated work areas. Works were undertaken in roadway and permenent restoration was undertaken on completion of works. September 2009 - December 2009 TRN - Campbelltown Road, Glenfield Subdivision works at Glenfield included laying DN150 and DN225 PVC sewerpipe, manholes, maintenance shafts, and connection off Campbelltown Road. Scope of works included: - Site establishment
- Establishment and maintenance of environmental controls
- Construct sewer main by open trenching and associated access chambers at various chainages
- Carry out CCTV inspection, pressure testing / vacuum testing
- Compaction tests
- Sewer main connections
- Complete restoration / landscaping of all disturbed areas
- Environmental controls as well as maintenance
- Traffic control measure installation and maintenance
- Temporary structures, including fencing
Sewer main laying to Sydney Water standards and supervised by Australian Water. June 2009 - September 2009 BCC Networks Alliance - Hornsby Involved the installation of 430 metre of DN375 PVC sewer pipe within the road via laserbore. Works occured within trafficable lanes where long-term 6 metre deep bore holes were established. The road was delineated with jersey kerbs, access / egress plans constructed for truck and plant access, and traffic control including personnel, night lights, and signs erected. Compound areas were established and drop off points managed. Community liaison included RTA, council, residents, and bus companies. This project included nightworks to open cut across intersections at Edgeworth David and Burdett Streets. Sensitivities with the project included RTA concerns that traffic obstructions on Edgeworth David would impact on the Pacific Highway, bus and large truck turning requirements at intersections, and highrise residential apartments impacted by noise. Scope of works included: - Excavation of three exit / entry pits for micro-tunneling works, approximately 2 x 4 x 6 meters deep
- Excavation of two trenches, approximately 50 meters in length and generally 5.0 meters deep and 900mm wide, for conventional excavation
|
| |
 |
BCC Networks Alliance, access pit for microtunnel in Sherbrook Rd, Hornsby 2009
|
|
|
 |
Sherbrook Road, Hornsby - Microtunnel access pit
|
|
|
.jpg) |
Sherbrook Road, Hornsby
|
|
|
|
|
2009-2010 PSP Alliance - 3 Towns Sewerage Upgrade project: Glossodia, Freemans Reach, and Wilberforce Sewer main pipe laying (DN250 PE sewer main) undertaken as part of the 3 Towns Sewerage Upgrade Project to bring sewer reticulation to residents in the area. The project involved the installation of 14, 679 metres of welded polyethylene sewer pipe ranging in size from 160mm to 400mm in diameter. Killard Excavation Pty Ltd has its own PE welders and performed both butt and fusion welds, debeading of line, and CCTV footage of each joint prior to PE pipe being installed within the trench. Pipe installed in roadways under traffic control and included installation of valves, scours, jetting points, flushing points, and permanent restoration. Worked closely with the community as well as with the RAAF base where works were located. Also included separate contracts to construct pump stations at each town.
June 2009 - November 2009 PSP Alliance - Freemans Reach Involved the installation of 4500 metres of DN250 PE sewer main in Freemans Reach. The sewer main pipe laying was undertaken in Northwest Sydney as a part of the 3 Towns Sewerage Upgrade Project.
Sewer Fix - Buckland Street, Chippendale and Beaumont Street, Darlington
September 2009 Transfield Services - Harris Road, Five Dock The purpose of the works is to replace existing Flygt dry well submersive pumps at a conventional dry well submersible pump station at Harris Road, Five Dock in order to improve the station's reliability due to access of common spares and interchange ability with stored pumps. The scope of works: - Relocating incoming power supply to suitable location
- Provide 'Gatic' trafficable covers in valve chamber replacing existing non-trafficable panels
- Install on-site permanent skid mounted Diesel Pump installed over a concrete hardstand
- Provide a permanent disel pump DN150 discharge line tapped to sewer rising main
- Provide a permanent diesel pump DN150 discharge line tapped to collecting manhole chamber
- Replacement of two existing obsolete models with new similar capacity Flygt dry well submersible units
- Decommission and removal of existing pumps power supply junction boxes
- Improve drainage of the station external area
Last updated: 4/11/2011 PSP Alliance - Freemans Reach Involved the construction of a sewer pumpstation off Cutpitts Lane in Freemans Reach.
|
| |
|
|
|
|
|
|
|
|
April 2008 - August 2008
John Holland - Rouse Hill Involved the excavation and installation of 200 metres of 1050mm overflow sewer plus connections and concrete structures in Mile End Road STP. Scope of works included: - Installation of DN500 Odour Duct piping
- Installation of DN750 Tertiary Filter Overflow Line and connection to the DN1050 RC pipe
- Installation and maintenance of environmental controls
- Installation of temporary structures
- Hydrostatic pressure and compaction testing
November 2007 - March 2008 BMD Constructions Pty Ltd - Middleton Grange Involved the excavation and installation of 150mm to 225mm diameter sewer and the excavation and installation of 375mm to 1050mm diameter stormwater for Sydney Water. It also invovled box culverts and rock walls. Scope of works included: - Site establishment
- Excavate for stormwater and sewer
- Delivery of pipes and precast
- Pipe laying
- Installing formwork for pits
- Installing precast Headwalls and Box Culverts
- Backfill pipes
- Compaction of backfill
- Erect formwork
- Install reinforcement
- Pour concrete
- Testing
- Restoration
- Inspection
November 2007 - December 2007 PSP Alliance - Blackheath, Blue Mountains This project involved ongoing works upgrading existing infrastructure and installing new sewer infrastructure. This included the installation of transfer mains to DN500 parallel and in close proximity to rail lines. Construction of pump stations, construction of an above ground aquaduct in an environmentally senstive area. Involved the excavation and installation of pumpstations and connections, 150mm to 375mm diameter rising sewer mains and aqueducts and new sewer through Blackheath Tunnel in Blackheath, Blue Mountains. Additional works included the installation of OD508 PE pipe grout encased through Blackheath Tunnel, including confined space access, PE welding, drilling supports, bolting clamps, and connections to existing mains. Other sewer insfrastructure was also laid along residential streets. All works were undertaken to community requirements and expectations.
|
| |
 |
| Grout lines into Blackheath Tunnel
|
|
|
 |
| Ventilation at Blackheath Tunnel
|
|
|
|
|
|
|
| |
 |
Railway sleepers were placed over ground to protect native vegetation and minimise impact during construction works
|
|
|
 |
| PSP Alliance Blackheath Aquaduct
|
|
|
 |
| Completed Aquaduct at Blackheath for PSP Alliance
|
|
|
 |
| Heathcote Sewer exhume and relay DICL main
|
|
|
September 2007
Sydney Anglican Schools Corporation - Worcester Road, Rouse Hill
Project commissioned due to the redevelopment of the Anglican College site at Rouse Hill which resulted in the need to extend a sewer main from the existing trunk sewer to the west of Rouse Road to within the boundaries of the site to comply with Sydney Water's servicing requirements.
Scope of works: - Installation and maintenance of traffic control measures
- Installation and maintenance of environmental controls
- Site preparation
- Excavation
- Trench compaction
- Lay approximately 30.9 metres of DN225 P.V.C. sewer main
- Site restoration
Last updated: 4/8/2011
November 2007 - April 2007 Ward Civil - The Village, Balgowlah Involved the installation of 500 metres of 375mm RCP stormwater pipe, which was laid to service the new development in Balgowlah. Works included laying 600mm stormwater pipe and constructing insitu pits along Condamine Street, including delineation of works, traffic control, saw cutting and removal of concrete pavement, supply and installation of pipes, pits, lids, and grates. Service location, road plate road crossings, and connections to existing stormwater system. The smaller pipes were laid within the site, including 115 metres running at the top of a 35 metre sheer vertical wall which required stringent safety standards to install. Access / egress plans and material handling proceedures were devised with the client and implemented sucessfully. A 25 metre section of 375mm welded PE pipe was hung from an internal carpark ceiling 4.5 metres above floor level using scissor lifts. This pipe section was not linear and bends were manufactured on site and cradles designed and bolted to the ceiling to support pipework. Works undertaken for Sydney Water. October 2007 - January 2007 BMD Constructions Pty Ltd - Kurnell Involved the excavation and installation of 375mm diameter sewer, the excavation and installation of 375mm to 750mm diameter stormwater, and the excavation and installation of 150mm to 375mm diameter water main. Scope of works included: - Excavate and lay approximately 19 meters of DN200 PVC class 16 water main
- Excavate and lay approximately 41 meters of DN200 DICL class K12 with concrete encasing
- Install required bends, valves, and hydrants
- Service connections of 450 x 200 hot tap and 375 x 200 hot tap
- Plant required to undertake works include excavators, backhoe / skid-steer loaders, and tipper.
September 2006 - December 2007 Leighton Contractors Pty Ltd - T-Way Windsor Road, Kellyville Involved the installation of 3km of various size stormwater from 300mm to 1200mm diameter reinforced concrete and FRC stormwater pipes and the installation of 6km of shared trench, transmission conduits, LV conduits, subducts, and roping. This project also involved the installation of light pole footings and conduits for street lighting, installation of precast pits, gross pollutant traps, headwalls, and subsoil drains Works undertaken behind segregated works area along Windsor Road and Sunnyholt Road. NACE Civil Engineering Pty Ltd - Prince Henry Hospital, Little Bay Involved the installation of approximately 6.5km of stormwater, varying in size from 225mm to 2 metre diameter, including catchpits. This project also included the installation of approximately 6km of Telstra conduit, approximately 5.5km of Energy Australia conduit, and the installation of sub-soil drainage and various other water diversion, groundwork, and site preparation work. BCC Networks Alliance - Heathcote National Park The existing DN450 DICL main in Heathcote National Park was found to have deteriorated due to sewer gas retention within the main. The pipeline had to be kept online for the replacement process. A 200 metre PE bypass main was constructed and cut in under pump station shutdowns, which diverted flow for the process of exhume and relay to occur. The DICL pipe was replaced with PVC pipe. 4060 metres of pipeline was upgraded. A corridor was cleared and works undertaken, and then stringent bush regeneration and management was implemented. Killard Excavation Pty Ltd employees were trained to an asset isolation plan (which was developed by Killard Excavation) and shut down two pump stations for each bypass transfer. Scope of works included: - Set-up of 200 meter by-pass PE piping arrangement to facilitate exhume and lay
- Exhume existing 450mm DICL sewer main and lay approximately 2700 meters of DN450 mPVC / DN600 GRP PN 16 sewer rising main and install valves and other associated structures
- Remove existing air / scour valves
- Connect SPS 589 to newly lain SRM
- Remove existing DN300 vent stack and install a new vent shaft including DN150 uPUV vent line from air valve chamber to vent shack
BCV Networks Alliance - Heathcote The works involved the shutdown of pump units to enable the connection of sewer by the Heathcote Sewer Project. This entailed undertaking the exhumation and relaying of existing DICL sewermain due to severe corrosion by acids contained in sewerage. This required shutting down pump stations initially and installing a 200 metre length bypass connection to facilitate the works. Once one section of the pipe was exhumed and re-laid as PVC the pump stations were shut down and the bypass moved to the next section. The shut down of pump units required the creation and implementation of an asset isolation plan, which included the creation of a flow management plan. The asset isolation / flow management plan encompassed a contingency plan to handle any possible risks to the successful completion of works, and a hazard / risk management plan to ensure the safety of employees, the environment, and customers during works.
|
| |
 |
Safety instructions from the Heathcote site
|
|
|
 |
Emergency pump at Heathcote
|
|
|
|
|
|
|
|
.jpg)
