大厚度自重湿陷性黄土地基处理厚度 与处理方法研究

 大厚度自重湿陷性黄土的地基处理方法、处理深度以及合理控制剩余湿陷量等是黄土地区工程设计中的难点、热点问题。从大厚度自重湿陷性黄土湿陷变形特点出发，进行3个方面的相关工作。首先论述大厚度自重湿陷性黄土地基处理的原则；然后，结合建构筑物的类别不同，提出不同的自重湿陷性黄土层厚度、宜采取的相应地基处理厚度和剩余湿陷量控制标准；最后，详细探讨大厚度自重湿陷性黄土地基整片处理、局部处理及多种处理方法的优缺点及适用性等问题，并给出几种地基处理方法处理效果良好的工程实例。

STUDY ON FOUNDATION TREATMENT THICKNESS AND TREATMENT METHOD FOR COLLAPSE LOESS WITH LARGE THICKNESS

Foundation treatment method，treatment thickness and residual collapse settlement of collapse loess with large thickness are hot issues in engineering design in loess areas. Based on the collapse characteristics of collapse loess with large thickness，research work in three aspects related to collapse loess was conducted. Firstly，the principles of foundation treatment for collapse loess under overburden pressure with large thickness were expounded. Secondly，combining various sorts of buildings，the controlling standard of foundation treatment thickness and the residual collapse settlement were suggested. Thirdly，the applicabilities for whole treatment，local treatment of foundation and multiple treatment methods were discussed；and some successful examples for various treatment methods were introduced.