Pre-stressed anchoring beam technique applicable in the reinforcement of high-steep slopes  

作　　者：Zhifa YANG Luqing ZHANG Jiewang ZHU 

机构地区：[1]Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China

出　　处：《Global Geology》2006年第2期213-216,共4页世界地质（英文版）

基　　金：This paper was financially supported by the Project 973 of Chinese National Program of Basic Research （No. 2002CB412701）; the National Natural Science Foundation （No. 40502027）;the Project of Innovation Program of Chinese Academy of Sciences （No. KZCX2-306）.

摘　　要：During the construction of some large-scale rock engineering,high-steep slopes and insufficient slope stability induced by unloading fissures are often encountered.For the reinforcement of these slopes,some techniques(including conventional pre-stressed anchoring cable and unconventional anchoring hole)are usually utilized,however,having several obvious defects.Thus,it is very difficult for a designer to design an efficient reinforcement scheme for the high-steep slopes.For this reason,the authors develop the pre-stressed anchoring beam technique,in which tensile capacity of pre-stressed structures are fully utilized.It is analyzed that the new technique is characterized by multi-functions,including engineering investigation,efficient reinforcement,drainage,monitoring and urgent strength supplement,and hoped to be extensively applicable in the reinforcement of high-steep slopes.During the construction of some large-scale rock engineering, high-steep slopes and insufficient slope stability induced by unloading fissures are often encountered. For the reinforcement of these slopes, some techniques （including conventional pre-stressed anchoring cable and unconventional anchoring hole） are usually uti- lized, however, having several obvious defects. Thus, it is very difficult for a designer to design an efficient reinforcement scheme for the high-steep slopes. For this reason, the authors develop the pre-stressed anchoring beam technique, in which tensile capacity of pre-stressed structures are fully utilized. It is analyzed that the new technique is characterized by multi-functions, including engineering investigation, efficient reinforcement, drainage, monitoring and urgent strength supplement, and hoped to be extensively applicable in the reinforcement of high-steep slopes.

关 键 词：large-scale rock engineering pre-stressed anchoring beam slope reinforcement 

分 类 号：P58[天文地球—岩石学]