某边坡工程岩体与锚固体间粘结强度试验分析  

Experimental Study of Adhesion Strength Between Rock Anchor Grout and Rock for a Slope Stability Project

作　　者：刘晖 王咸东 盛光祺 LIU Hui;WANG Xiandong;SHENG Guangqi(Kunming Tongxingongzhu Engineering Technology Co.Ltd.,Kunming 650000;Kunming Junlong Geotechnical Engineering Co.Ltd.,Kunming 650214)

机构地区：[1]昆明同心共筑工程技术有限公司,昆明650000 [2]昆明军龙岩土工程有限公司,昆明650214

出　　处：《土工基础》2021年第6期777-780,797,共5页Soil Engineering and Foundation

摘　　要：边坡工程常遇到各类岩石的风化产物,当采用锚杆结构治理边坡时,岩体与锚固体间粘结强度是一项重要设计参数。通过对云南某山地边坡支护工程四次锚杆基本试验数据进行整理分析,得到了志留系下统全风化、强风化板岩锚杆锚固体极限粘结强度标准值(f_(rbk));分析锚固段长度对f_(rbk)值的影响,给出类似地质条件临界锚固长度建议值,并提出锚杆成孔、注浆等施工工艺技术对f_(rbk)取值的影响。The nominal adhesion strength between the rock anchor grout and heavily weathered slate rock mass Lower Series of Silurian Period was back-analyzed from the in-situ critical testing on four rock anchors.The influence of the grout length on the nominal adhesin strength was evaluated and the critical grout length in the similar geological conditions was also proposed.The influence of the borehole installation,and grouting procedures on the nominal adhesion strength was also investigated.

关 键 词：边坡支护 锚杆 基本试验 岩土体与锚固体极限粘结强度标准值 

分 类 号：TU413[建筑科学—岩土工程]