摘要
为研究藏东川西波密至林芝段重大工程的水文地质条件和存在的主要工程水文地质问题,在参考前人研究成果基础上,通过开展关键钻孔岩心地质编录和野外水文地质调查等研究工作,得出了相关研究结果。结果表明:沿线具有高寒、高陡、高地震烈度、高地应力、高地温、高水压等复杂的地质环境特征,主要存在深埋长大隧道高水压涌突水、断裂带基岩裂隙高压突水、高温热水热害、隧道排水对生态环境影响等四类水文地质问题。易贡隧道外水压力预测值在0.80~3.47 MPa之间,易贡隧道和色季拉山隧道预测涌水量最大值接近或超过10×10^(4)m^(3)/d,拉月隧道附近沿线25个钻孔实测孔底温度在12.5℃~93.5℃。
In order to study the hydrogeological conditions and main engineering hydrogeological problems of the major project from western Bomi to Nyingchi section in eastern Tibet,On the basis of the previous research results,the relevant research work of key borehole core geological cataloging and field hydrogeological investigation.The results show that there are four types of hydrogeological problems along the route,such as high cold,high steepness,high seismic intensity,high ground stress,high ground temperature and high water pressure.There are mainly four types of hydrogeological problems,such as high water pressure water inrush in deep-buried long tunnel,high pressure water inrush in fracture zone bedrock,thermal damage caused by high temperature hot water,and the influence of tunnel drainage on ecological environment.The predicted water pressure outside the Yigong tunnel is between 0.80 and 3.47 MPa,the predicted maximum water inflow of the Yigong Tunnel and Sejilashan tunnel is close to or over 100000 m^(3)/d,and the measured bottom temperature of 25 boreholes along the Lanyue tunnel is between 12.5℃and 93.5℃.
作者
邵杰
滕超
陈喜庆
杨欣杰
曹军
朱宁
肖登
吕菲
SHAO Jie;TENG Chao;CHEN Xiqing;YANG Xinjie;CAO Jun;ZHU Ning;XIAO Deng;LV Fei(Cores and Samples Center of Natural&Resources(CSCNR),China Geological Survey(CGS),Sanhe,Hebei 065201,China;National Sichuan-Tibet Railway Technology Innovation Center,Chengdu,Sichuan 610200,China)
出处
《河北工程大学学报（自然科学版）》
CAS
2023年第2期105-112,共8页
Journal of Hebei University of Engineering:Natural Science Edition
基金
国家重大工程建设实物地质资料综合剖面调查与应用服务(DD20221814)。
关键词
波密至林芝段
水文地质条件
工程水文地质问题
高压涌突水
高温热水热害
bomi to Linzhi section
hydrogeological conditions
engineering hydrogeological problems
high pressure water inrush
thermal damage from high temperature hot water
