碎石桩复合地基承载力的确定  

Ascertain Bearing Capacity of Stone Column Composite Foundation

作　　者：刘熙峰[1] 周天红[1] 

机构地区：[1]西北电力设计院,陕西西安710032

出　　处：《电力勘测设计》2002年第2期35-37,共3页Electric Power Survey & Design

摘　　要：由于复合地基载荷试验压板越来越大 ,荷载越堆越多 ,实施愈来愈困难 ,因此 ,对复合地基承载力的计算便愈显重要。本文通过对规范中复合地基承载力计算公式的论证 ,并对单桩、桩间土承载力取值问题进行修正 ,使规范中取单桩、桩间土承载力标准值改为单桩、桩间土在特定沉降下的抗力强度 ,并增加应力不均匀修正系数Ψp。从而建立了一套以变形为主线的计算方法 ,使计算更为准确 。It is important that the bearing capacity of composite subgrade be calculated because the loading plate of bearing test on the composite subgrade becoming more and more big and the test carring out more and more hard.Argument about the formula about calculating the bearing capacity of composite subgrade in the standard and revise fixing the value of bearing capacities of pile and the soil around stone column in this paper.Writer suggest changing the standard value of one for the power resistance strength under given settlement and increasing revisal coefficient Ψ p of stress uneven distribution.Establish the method of calculation putting deformation first.It make calculation more accurate and more simple.

关 键 词：复合地基 载荷试验 承载力 标准值 抗力强度. 

分 类 号：TM7[电气工程—电力系统及自动化]