Mining induced collapse in 1997 and seismic records at Changyu, SE China

Shang Yanjun; Yang Zhifa; He WantongLi LihuiYang PengLuo QiaohuiTao ChenxiaoLi Tianbin

首页> 外文期刊>Episodes >Mining induced collapse in 1997 and seismic records at Changyu, SE China

【24h】

Mining induced collapse in 1997 and seismic records at Changyu, SE China

机译：Mining induced collapse in 1997 and seismic records at Changyu, SE China

获取原文

获取原文并翻译 | 示例

掌桥外文数据库（机构版） >>

开具论文收录证明 >>

文献代查 >>

页面导航

摘要
著录项
相关主题

摘要

abstract_textpQuarry induced collapse, an issue of particular concern in the mining industry, is a typical form of manmade disaster. Identification of the morphological characteristics of such collapses is commonly based on seismic records but comprehensive studies regarding the mechanism and energy conversion mode utilizing the seismic record is seldom undertaken. A huge collapse event at the Biyutan mining cavern at Changyu Dongtian in Wenling city, China, lasting for about 20 seconds, was observed on August 11, 1997. After the collapse, nearly 11 million m3 of rock blocks were left on the floor By conducting a field survey on engineering geology, retrospectively analyzing the collapsing process through interviewing local residents, referring to related documents, and identifying the seismic records obtained from 3 surrounding seismic stations, it was established the roof collapse at the Biyutan cavern, excavated in massive tuff, was due to over excavation of several pillars, which substantially affected the stress field in cavern roof giving rise to a local failure of the roof that gradually developing into a widespread failure in an area EW 800m long, SN 460m wide. During the collapse, outbursts of water and air shock waves result in loss of life and property within a distance of 150m from the mine opening. This reminds us that reasonable allocation of sufficiently strong safety pillars and installation of monitoring system are absolutely essential in quarrying operations to avoid overall failure and ensure the safety of the people nearby./p/abstract_text

著录项

来源
《Episodes》 |2016年第4期|582-589|共8页
作者
Shang Yanjun; Yang Zhifa; He WantongLi LihuiYang PengLuo QiaohuiTao ChenxiaoLi Tianbin;
展开▼
作者单位

Chinese Acad Sci, Inst Geol & Geophys, Key Lab Shale Gas & Geoengn, Beijing 100029, Peoples R China;

Changyudongtian Tourism Ind Co LTD, Wenzhou 317502, Zhejiang, Peoples R China;

Chengdu Univ Technol, SKLGP, Chengdu 610059, Peoples R China;

展开▼
收录信息美国《科学引文索引》(SCI);
原文格式 PDF
正文语种英语
中图分类地质学;
关键词

Mining induced collapse in 1997 and seismic records at Changyu, SE China

摘要

著录项

相关主题

期刊订阅