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。
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.
出处
《岩土力学》
EI
CAS
CSCD
北大核心
2005年第5期789-794,共6页
Rock and Soil Mechanics
关键词
结构性
软粘土
地基处理
扰动度
Calculations
Clay
Mechanical properties
Settlement of structures
Soils
Stability
