预锚地下连续墙的作用机理及应用研究  

Study on the Functional Mechanism and Application of Diaphragm Wall with Pre-stressed Vertical Bolts

作　　者：许文杰[1] 王运永[2] 赵福平[1] 

机构地区：[1]中钢集团工程设计研究院 [2]北京科技大学

出　　处：《金属矿山》2009年第9期48-50,共3页Metal Mine

摘　　要：提出了预锚地下连续墙的概念,并分析了其作用机理。结合一实际工程,采用岩土分析软件对地下连续墙施工前后的边坡稳定性进行了对比分析,结果表明,预应力锚杆把地下连续墙的抗倾覆安全系数提高了34.8%,抗滑安全系数提高了16.8%。增强了墙体的稳定性。预锚地下连续墙方案竣工后,现场监测结果表明边坡和地下连续墙处于完全稳定状态,且涌水量显著降低,因此预锚地下连续墙在类似边坡治理中具有推广和应用价值。The concept of ＂diaphragm wall with pre-stressed vertical bolts＂ is put forward in this paper,and its functional mechanism is analyzed. According to a practical project ,the slope stabilities before and after construction of the wall are analyzed contrastively by analysis of geo-technology software. The results show that slip coefficient is increased markedly by 34.8% ,and safety factor against sliping is improved by 16.8% ,leading to the stability of wall enhanced. After completion of this scheme,field monitoring revealed that the slope and the diaphragm wall are very stable, and the pit discharge decreases evidently,so the diaphragm wall with pre-stressed vertical bolts is worthy to be popularized widely in the similar proiects.

关 键 词：预应力锚杆 地下连续墙 边坡治理 

分 类 号：TU476.3[建筑科学—结构工程] TV731[建筑科学—土工工程]