高压注浆土钉特性及应用

英文篇名：CHARACTERISTICS AND APPLICATIONS OF HIGH-PRESSURE GROUTING SOIL NAILING
中文刊名：岩石力学与工程学报
英文刊名：Chinese Journal of Rock Mechanics and Engineering
作者：李志刚 ; 任佰俪 ; 秦四清
英文作者：Li Zhigang1 ; Ren Baili2 ; Qin siqing1 (1Institute of Geology and Geophysics ; The Chinese Academy of Sciences ; Beijing 100029 China) (2Yanshan University ; Qinhuangdao 066004 China)
中文关键词：岩土力学 ; 高压注浆土钉 ; 安全系数 ; 力学模型 ; 传递机理
英文关键词：rock and soil mechanics ; high-pressure grouting soil nailing ; security coefficient ; mechanics model ; transfer mechanism
出版日期：2004-05-15
机构：中国科学院地质与地球物理研究所,燕山大学基建处,中国科学院地质与地球物理研究所北京100029 ,秦皇岛066004 ,北京100029
年：2004
期：09
出版单位：岩石力学与工程学报

摘要

面对重力注浆土钉的一些不足,提出了高压注浆土钉,并对它的一些特性作了一些探讨。通过土钉抗拔力学模型探讨了高压注浆土钉的抗拔荷载传递机理,简单介绍了其施工工艺。从土钉长度、抗拔安全系数、界面粘结强度、抗滑稳定性等方面说明了高压注浆土钉的优越性,并从实例分析证明其可行性。
Aiming at the disadvantages of gravity grouting soil nailing,high-pressure grouting soil nailing is introduced in this paper,and its characteristics are discussed. Based on mechanics model of pullout,the transfer mechanism of pullout load of high-pressure grouting soil nailing is discussed. Moreover,the construction process is briefly presented. High-pressure grouting soil nailing has advantages in many aspects,including length of soil nailing,security coefficient of pull strength,bond strength of interface,stability against sliding. Its feasibility is proved in project example.

引文

1秦四清,王建党.土钉支护机理与优化设计[M].北京:地质出版社,1999
2秦四清.深基坑工程优化设计[M].北京:地震出版社,1998
3徐至均,赵锡宏.逆作法设计与施工[M].北京:机械工业出版社,2002