About The Project
Steel sheet piles are particularly effective for power plant projects because of the easy-to-handle effective retaining wall system: transportation and installation is highly convenient and the sheet piles can be reused for various types of excavation works within the power plant area itself.
Technical Support
OSP’s team of technical experts are equipped to be able to offer efficient and effective technical support for the construction of power plants from the ground up.
Step-by-step process for sheet pile retaining wall construction in power plants
Power plants normally require retaining walls built to expedite excavation works. Sheet piles are critical in this process which undergoes several different stages:
Driving Sheet Piles
systematically
Excavation continued upon
completion of 1st layer strutting
Erection of Permanent
Structures in progress
Excavation continued upon
completion of 2nd layer strutting
Temporary strutting system installed in soft soil conditions
Power plant projects normally occur in swampy areas with soft ground conditions, where transportation and installation poses as a difficulty for other alternative foundation steel solutions. This issue of limited access can either be circumvented through adjacent jetty access; or ameliorated through ground improvement works such as prefabricated vertical drain installations which are carried out to facilitate soil consolidation, improving the soil properties overall.
A sheet pile retaining wall is useful in various different areas within a power plant and provides various benefits, all of which installation processes pose different requirements. Without the proper consideration and effective experience, installation is unlikely to be effective. OSP has however proven themselves time and time again as the go-to supplier when it comes to technically demanding installations.
Specifically, there are many areas where sheet pile can be utilised:
1. Inlet / Outlet pipe lines
Inlet and outlet pipe areas normally deploy temporary or reusable sheet piles for long stretch of pipe line. Note that deflection of sheet piling cannot be excessive in order to ensure possible reuse of the material. The excavation depth for such projects is generally 5-10m, while width is ~10m.
2. Turbine hall area
For turbine halls, temporary sheet piling (normally ~10m in height) are deployed in order to excavate a large area. OSP is able to specifically tailor installation of piles to consider soil heaving and/or water piping through the bottom of the retaining wall.
Other areas include:
3. Ash pond / settling basin area
4. Aeration basin
5. Water treatment area
6. Pump station / storage tank
7. Electrical area
