摘要
危岩崩塌是一种全球泛生型重大地质灾害,其应急加固技术是危岩崩塌应急减灾的关键环节。研发了一种新型锚杆(自锚型应急锚杆),详细阐述了自锚型应急锚杆的结构组成和使用方法;建立了自锚型应急锚杆和锚杆螺栓的抗剪强度计算方法,获得了治理危岩所需锚杆数量的计算式。研究成果为应急治理危岩崩塌灾害提供了一种新技术,并可推广应用于房屋结构及桥梁结构的应急加固中。
Perilous rock and collapse is a kind of major global geological disaster and its emergency reinforcement technology is the critical link of emergency disaster mitigation of perilous rock and collapse. A new type of anchor that is self-anchored emergency anchor was proposed. The structure composition and application method of self-anchored emergency anchor were expounded in detail. The shear strength calculation method of self-anchored emergency anchor and bolt of anchor arm was established,and the calculation formula of the amount of anchor needed to control dangerous rock was obtained. The research results provide a new technical path for emergency treatment of perilous rock and collapse,which can also be applied to the emergency reinforcement of building structure and bridge structure.
作者
陈洪凯
尹肖
CHEN Hongkai;YIN Xiao(Institute of Geotechnical Engineering, Chongqing Jiaotong University, Chongqing 400074, P. R. Chin)
出处
《重庆交通大学学报(自然科学版)》
CAS
北大核心
2018年第5期52-59,共8页
Journal of Chongqing Jiaotong University(Natural Science)
基金
国家自然科学基金项目(51678067
51378521
11272185)
重庆市首席专家工作室专项经费(201605)
重庆市"两江学者"计划专项资金(201309)
2016年重庆高校创新团队建设计划资助项目(CXTDG201602012)
关键词
岩土工程
岩石力学
危岩应急加固
自锚型应急锚杆
危岩崩塌
geotechnical engineering
rock mechanics
emergent reinforcement of perilous rock
self-anchoredemergency anchorl perilous rock and collapse