摘要
川西高原是在印度板块和欧亚板块碰撞和持续压缩作用下形成青藏高原东部的一部分,在其形成过程中产生了大量深部断裂,构造活动强烈,地层岩性复杂多变,具备有害气体生成的物质基础和地质、构造条件。通过调研相关资料,结合区域地质资料,对川西地区有害气体致灾类型进行研究。研究表明:(1)根据致灾类型不同可将有害气体分为“毒害型”、“突出型”和“燃爆型”三种类型;(2)对不同致灾类型的有害气体应采取对应的防治措施,“毒害型”有害气体利用中和反应进行快速降毒,“突出型”有害气体利用钻孔排放和泄水泄压来进行防突,“燃爆型”有害气体加强通风强度来稀释有害气体浓度。本研究可为防治有害气体灾害提供新的见解和参考,从而确保隧道的安全建设和开发。
The Western Sichuan Plateau is a part of the eastern Qinghai-Tibet Plateau formed by the collision and continuous compression of the Indian plate and the Eurasian plate.During its formation,a large number of deep faults have been generated,with strong tectonic activity,complex and changeable formation lithology,and the material basis,geological and structural conditions for the generation of harmful gases.By investigating relevant data,combined with regional geological data,the types of hazards caused by harmful gases in western Sichuan are studied.The research shows:(1)According to the different types of disasters,harmful gases can be divided into three types:"toxic type","prominent type"and"explosive type".(2)"Poison-type"harmful gases use neutralization reaction for rapid detoxification,"prominent"types of harmful gases use drilling and drainage and pressure relief for outburst prevention,and"explosive"type of harmful gases strengthen ventilation to reduce dilute harmful gas concentrations.This research can provide new insights and references for the prevention and control of harmful gas disasters,so as to ensure the safe construction and development of tunnels.
作者
唐涛
朱大鹏
苏培东
邱鹏
李有贵
Tang Tao;Zhu Dapeng;Su Peidong;Qiu Peng;Li Yougui(School of Geosciences and Technology,Southwest Petroleum University,Chengdu 610500,P.R.China)
出处
《地下空间与工程学报》
CSCD
北大核心
2023年第S01期362-367,共6页
Chinese Journal of Underground Space and Engineering
关键词
川西地区
有害气体
致灾类型
隧道工程
防治措施
Western Sichuan area
harmful gas
type of disaster
tunnel engineering
preventive measures
