ZHAOZhang.Design and Construction of a WWTP Deep Foundation Pit in Wenzhou Central Area[J].China Water & Wastewater,2024,40(10):114-120.
Design and Construction of a WWTP Deep Foundation Pit in Wenzhou Central Area
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第40卷
Number:
第10期
Page:
114-120
Column:
Date of publication:
2024-05-17
- Keywords:
- semi-underground wastewater treatment plant; deep foundation pit support; prestressed anchor; earth excavation; construction organization; construction optimization
- Abstract:
- There are many technical challenges in the design and construction of foundation pit support project in Wenzhou central area wastewater treatment plant (WWTP). The entire foundation pit support design and construction process during implementation are studied. The numerical inverse analysis method is used to establish the formula for calculating parameter m of foundation pit supporting structure considering soil retention at basin edge. According to the comprehensive comparison of excavation depth, soil properties and surrounding conditions, the supporting form of foundation pit is selected, the construction scheme is optimized, and the exhaustive scheme design is focused on the diagonal pilot hole, anchor installation, pile formation and other processes in the high-pressure rotary spray prestressing anchor process. Detailed construction organization plan is developed for earthwork excavation and transportation engineering. Through continuous optimization of the whole process scheme, under the premise of ensuring safety and reliability, a lot of investment has been saved, and better economic efficiency has been achieved.
Last Update:
2024-05-17