高压注浆土锚最小覆盖层厚度计算方法  

Calculational method of minimum safe thichness of over burden above high-pressure drilling-grouted soil anchor

作　　者：凌贤长[1] 王丽霞[1] 周宏[1] 吴凯滨 

机构地区：[1]哈尔滨工业大学土木工程学院,黑龙江哈尔滨150090 [2]哈尔滨市道里房产经营公司,黑龙江哈尔滨150010

出　　处：《哈尔滨建筑大学学报》2001年第6期17-20,共4页Journal of Harbin University of Civil Engineering and Architecture

基　　金：国家自然科学基金资助项目(50178027);黑龙江省落户博士后科研启动资金资助项目

摘　　要：如何合理选择高压注浆土锚钻孔上覆土层的最小安全厚度是一个重要的工程问题。本文主要基于前人研究成果,依据有效应力原理、莫尔-库伦强度准则及极限平衡条件,按照平面力学问题处理,初步探讨高压注浆土锚最小覆盖层厚度的解析解,并通过某一工程算例说明所给的解析解可以为实际的高压注浆土锚设计提供一定的理论依据。The analytic formula of minimum safe thichness of over burden above drilling-grouted soil anchor is review ed for the case of two dimensional plane stress condition in accordance with the ef-fective stress principle,Morhar-Coulomb 's strength criterion and stress condition of limit equilibrium on the basis of previous scientific research achievements,and the analytic formula has been proved to be useful for the engineering design of a drilling-grouted soil anchor.

关 键 词：高压注浆 土锚 最小覆盖层厚度 解析解 

分 类 号：TU432[建筑科学—岩土工程]