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结构性软土地基施工扰动定量分析
引用本文:王军,高玉峰,高红珍.结构性软土地基施工扰动定量分析[J].岩土力学,2005,26(5):789-794.
作者姓名:王军  高玉峰  高红珍
作者单位:1. 河海大学,岩土工程研究所,南京,210098;南京市施工图设计审查管理中心,南京,210024
2. 河海大学,岩土工程研究所,南京,210098
3. 中煤南京设计研究院,南京,210031
摘    要:绝大多数软土具有一定的结构性,地基处理施工扰动会改变软土地基的工程性质,受到扰动的软土地基的力学参数却难以通过室内试验模拟准确测定。从理论和原位试验两方面分别给出了由于地基处理施工引起的结构性软土地基扰动程度的定量计算方法,并通过实际工程计算得出了设置砂井或排水板的软土地基的施工扰动度在30%左右,定量计算得到的扰动度可用于扰动土地基的沉降及稳定性计算。

关 键 词:结构性  软粘土  地基处理  扰动度
文章编号:1000-7598-(2005)05-0789-06
收稿时间:2003-12-08
修稿时间:2003年12月8日

Quantitative analysis of foundation treatment disturbance of structured soft clay ground
WANG Jun,GAO Yu-feng,GAO Hong-zhen.Quantitative analysis of foundation treatment disturbance of structured soft clay ground[J].Rock and Soil Mechanics,2005,26(5):789-794.
Authors:WANG Jun  GAO Yu-feng  GAO Hong-zhen
Institution:1.Research Institute of Geotechnical Engineering, Hohai University, Nanjing 210098, China; 2.Nanjing Censor Center of Construction Drawing Design, Nanjing 210024, China; 3. Design Research Institute in Nanjing of China’s Coal International Project Group, Nanjing 210031, China
Abstract:Most natural soft soils have structural characteristic; so the disturbance of foundation treatment changes engineering property of soft clay ground. Mechanical parameters of disturbed soft ground cannot be measured accurately by laboratory experiment. In order to obtain calculation parameters of disturbed soft clay ground, based on in-situ test and column-expand theory, quantitative calculation methods of disturbance degree of structured soft clay ground resulted from foundation treatment are presented. The examples show that the structured soft clay ground disturbance degree resulted from the setting of PVD is about 30 %; it can be used to calculate settlement and stability of disturbed soft clay ground.
Keywords:structural characteristic  soft clay  foundation treatment  disturbance degree
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