深基坑锚杆支护上限理论设计法分析  

Analysis on Upper Limit Design Method of Deep Excavation by Soil Layer Anchor

作　　者：庄心善[1] 朱瑞赓[2] 何世秀[1] 

机构地区：[1]湖北工业大学土木工程与建筑学院,湖北武汉430068 [2]武汉理工大学土木工程与建筑学院,湖北武汉430070

出　　处：《湖北工业大学学报》2005年第4期1-3,共3页Journal of Hubei University of Technology

基　　金：湖北省自然科学基金项目(2002AB001);湖北省教育厅项目(2002A00015)

摘　　要：根据土层锚杆的破坏形式通常以水泥砂浆周围土层发生剪切破坏为主,在假设锚杆破坏时在土体中形成纺锤型破坏体的基础上,基于土体塑性极限平衡理论的上限分析法,对土层锚杆支护的深基坑边坡稳定性,锚杆长度及间距的确定方法等问题进行了探讨,其结论对今后深基坑锚杆支护工程设计具有一定的参考价值.Usually shearing failure of soil around anchor rods is the main failure form of the rods. Assuming that a spindle shape body is made from around rods with rods destruction, and based on upper limit of plastic limit equilibrium in soil body, the problem about stability of deep excavation slopes by anchor and determine of anchor length and anchor spacing is studied. The conclusion has the certain reference value to the engineering design of deep excavation by anchor.

关 键 词：深基坑 锚杆 上限理论 锚杆长度 锚杆间距 

分 类 号：TU441[建筑科学—岩土工程]