爆破2026，Vol.43Issue(1)：130-137,8.DOI:10.3963/j.issn.1001-487X.2026.01.014
复杂环境下高陡边坡危岩体控制爆破排险技术研究
Study on Controlled Blasting Techniques for Hazard Mitigation of Unstable Rock Masses on High and Steep Slopes under Complex Environmental Conditions
张健 1姚宁 2黎勇 3安荣杰 3卢世佳4
作者信息
- 1. 南宁汉鼎爆破工程公司,南宁 530005
- 2. 北京市科学技术研究院城市安全与环境科学研究所,北京 100054
- 3. 南宁市工程爆破协会,南宁 530003
- 4. 南宁市上林县自然资源局,南宁 530599
- 折叠
摘要
Abstract
Rock collapse,as a typical geological hazard,exhibits sudden occurrence and high destructive poten-tial,severely threatening lives and infrastructure in adjacent areas.Currently,control blasting has become a prevalent mitigation measure for unstable rock masses susceptible to collapse.This study investigates the unstable rock mass on the back hill of Longgui Village,Shanglin County,Nanning City,Guangxi,utilizing a high-density drilling configura-tion with a hole network parameter of 0.35 m ×0.40 m,involving over 350 blast holes.The blasted debris fragmenta-tion size was precisely controlled with a maximum volume of 0.0429 m3.By applying air-deck charging in combina-tion with detonating cord series connection technology,the explosive pressure duration on borehole walls was pro-longed,generating a quasi-static pressure effect that successfully mitigated impact crushing and minimized long-dis-tance flyrock hazards.A total explosive charge of 462 kg was strategically divided into six segments with sequential outward-to-inward initiation using 20 ms inter-segment delays,maintaining a maximum charge of 79.2 kg per delay interval.This design promoted rock-to-rock collisions for secondary fragmentation,resulting in enhanced size reduc-tion.The blast successfully generated a controlled"rock debris waterfall"collapse pattern,completing the hazard mitigation operation.This project establishes a technically viable approach for the removal of overhanging rock masses near critical infrastructure,including mountain transportation corridors and civilian structures.关键词
山体危岩/复杂环境/爆破排险/密集孔与隔离装药Key words
unstable rock mass on mountain slopes/complex environment/blasting for risk removal/dense drill-ing and isolated charging分类
矿业与冶金引用本文复制引用
张健,姚宁,黎勇,安荣杰,卢世佳..复杂环境下高陡边坡危岩体控制爆破排险技术研究[J].爆破,2026,43(1):130-137,8.
