基于结构面组合分析的系统锚杆参数优化设计  

Optimization Design of System Bolt Parameters Based on Structural Surface Combination Analysis

作　　者：罗延婷[1] 刘振红[1] 魏杰[1] 王耀邦[1] LUO Yanting;LIU Zhenhong;WEI Jie;WANG Yaobang(Yellow River Engineering Consulting Co.,Ltd.,Zhengzhou 450003,China)

机构地区：[1]黄河勘测规划设计有限公司,河南郑州450003

出　　处：《人民黄河》2018年第12期148-151,157,共5页Yellow River

摘　　要：为了使系统锚杆对高陡岩质边坡的加固支护作用最有效,以系统锚杆加固的岩体边坡为研究对象,提出基于结构面组合分析的高陡岩质边坡系统锚杆参数优化设计的方法。采用结构面组合分析—确定最优不利结构面—确定最优锚固角—确定最优锚杆长度的设计流程,对黄藏寺水利枢纽左坝肩高陡岩质边坡的系统锚杆参数进行优化设计,通过刚体极限平衡法计算,经参数优化后的系统锚杆,其支护的岩质边坡的稳定系数最大。该方法充分考虑了岩体不同产状的结构面,通过其设计的系统锚杆对开挖边坡的支护作用效果最优,使系统锚杆支护设计更科学、更安全、更经济。In order to make the system bolt most effective in strengthening and supporting the high-steep rock slope, taking the object an-chored by the system bolt-the rock mass slope as the starting point, a method of optimizing the design of system bolt parameters of high andsteep rock slope based on structural plane combination analysis was proposed. The system bolt design process was established from structuralplane combination analysis to determine the optimal unfavorable structural plane, the optimal anchor angle and the optimal bolt length. It wasused to optimize the design of the system bolt parameters of the left abutment rock slope of the Huangzangsi Key Water Control Project andcalculated by the rigid body limit equilibrium method, so the stability coefficient of the supported rock slope was the largest. The method fullyconsidered the structural planes of different occurrences of rock mass. The system bolt designed by the method had the best effect on the sup-port of excavation slope, which made the design of the system bolt support more scientific, safer and more economical.

关 键 词：高陡岩质边坡 系统锚杆 人造结构面 黄藏寺水利枢纽 黑河 

分 类 号：U455.71[建筑科学—桥梁与隧道工程] U213.158[交通运输工程—道路与铁道工程]