| The characteristics of the foundation pit of the current building in the city are large-scale, deep depth, and the complexity of the surrounding environment. Pit accident will lead to huge losses and impact. Therefore, the deformation and stability of the foundation pit in the design and construction put forward higher requirements.The main content of this article is:(1) From the pit deformation theory and from on-site monitoring data of the heap Park Extension tunnel excavation of Chengdu to Dujiangyan new railway, we analyze the deformation phenomena and regularity of the support-row pile retaining wall supporting structure in the sand and gravel formation. From the analysis, we draw some conclusions useful practical foundation pit monitoring.(2)Based on probability theory and mathematical statistics, reliability analysis method used in the stability analysis of foundation pit supporting structure. With the application of mathematical software of Matlab, we prepared to stay single-row pile retaining wall supporting structure against overturning stability and the department of the Monte Carlo method reliability analysis program.From the instance of engineering analysis and calculation, we analyze factors about row pile retaining wall supporting a single support structure against overturning stability reliability and summarize its impact law. Considering the bar construction loads and multi-layer soil, reliability analysis procedure is better for the actual situation. From the calculation by the instance of analysis, we verify the feasibility and apply single support row pile retaining wall supporting structural stability against overturning. |
PDF Full Text Request