上覆固化层淤泥地基承载力分析
发布时间：2019-03-20 13:35
【摘要】：我国海岸线约有四分之一属于淤泥质海岸,而且每年还因吹填与疏浚会产生大片的淤泥地基,这类超软弱地基的闲置或废弃是对土地资源的极大浪费。基于合理开发利用淤泥资源的理念,本文从日本引入一种新颖的原位淤泥固化技术——SLM工法,从理论推导、数值模拟等方面深入分析淤泥地基上覆固化层的承载性能,推导出考虑应力扩散作用与封闭作用的地基临界荷载q_(1/4)公式。同时,工程实例显示地基临界荷载q_(1/4)的计算结果与地基承载力特征值fa的模拟结果较为接近,对今后的设计工作有一定指导意义。
[Abstract]:About 1/4 of China's coastline belongs to silty shoreline, and every year a large area of silt foundation will be produced because of dredging and dredging. The idle or abandoned super-soft ground is a great waste of land resources. Based on the idea of reasonable exploitation and utilization of sludge resources, this paper introduces a new in-situ sludge solidification technology-SLM construction method from Japan, and analyzes the bearing capacity of the solidified layer on the silt foundation from the aspects of theoretical derivation and numerical simulation. The formula of critical load Q _ (1) ~ (4) considering stress diffusion and closure is derived. At the same time, the engineering example shows that the calculation result of the critical load Q1 ~ (4) is close to the simulation result of the characteristic value fa of the foundation bearing capacity, which has some guiding significance for the design work in the future.
【作者单位】： 上海岩土工程勘察设计研究院有限公司;
【分类号】：TU447
，
本文编号：2444265
[Abstract]:About 1/4 of China's coastline belongs to silty shoreline, and every year a large area of silt foundation will be produced because of dredging and dredging. The idle or abandoned super-soft ground is a great waste of land resources. Based on the idea of reasonable exploitation and utilization of sludge resources, this paper introduces a new in-situ sludge solidification technology-SLM construction method from Japan, and analyzes the bearing capacity of the solidified layer on the silt foundation from the aspects of theoretical derivation and numerical simulation. The formula of critical load Q _ (1) ~ (4) considering stress diffusion and closure is derived. At the same time, the engineering example shows that the calculation result of the critical load Q1 ~ (4) is close to the simulation result of the characteristic value fa of the foundation bearing capacity, which has some guiding significance for the design work in the future.
【作者单位】： 上海岩土工程勘察设计研究院有限公司;
【分类号】：TU447
，
本文编号：2444265
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