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- Title
淤泥质软土基坑搅拌桩与土钉复合支护 结构受力与变形特性.
- Authors
王刚; 胡立强; 孙尚渠; 孙昭晖; 徐锋; 周博; 贺鹏
- Abstract
Due to the effects of rheology and sensitivity of soft soil, the control of internal force and displacement of foundation pit supporting structure is particularly important in the condition of sludge soft soil. Aiming at the problem of the foundation pits support in sludge soft soil, application of the composite soil nailing support system of mixing piles in sludge soft soil areas were discussed. The finite difference program of FLAC3D and orthogonal test method were used to explore the different factors that affect the deformation and stability of the foundation pit. Based on the field measurement data of the sludge soft soil foundation pit, the sensitivity-deformation and stability of the foundation pit with mixing pile composite soil nailing were deeply analyzed, so as to explore the specific conditions of the foundation pit under different interference factors. Results show that the composite support of mixing pile and soil nail has little influence on the external support of foundation pit. And the axial force of the composite support of mixing pile and soil nail is larger at both ends and smaller at the center. The soil nailing inclination angle of 30° has the best support effect. The construction technology of this kind of support system is simple, the technical operation is relatively simple, the cost is low, and it has high practical application value.
- Publication
Science Technology & Engineering, 2022, Vol 22, Issue 12, p4962
- ISSN
1671-1815
- Publication type
Article