摘要
南宁—玉林高速铁路沿线岩溶十分发育是工程建设面临的最为突出的工程地质问题。本文通过归纳、总结、分析,较系统地研究了该线岩溶发育的特征、发育规律以及岩溶引起的工程风险。研究结果表明:岩溶段落长、类型多样、发育强度不同、规律性差、隐蔽性高是该线岩溶发育的主要特点;岩性、构造及地形等因素与岩溶发育关系密切;岩溶发育造成工程勘察探查难度大、钻探诱发塌陷风险突出,带来直接的施工安全风险和潜在的工程安全影响。
Karst was very developed along Nanning-Yulin high speed railway,which was the most prominent engineering geological problem faced by engineering construction.Through induction,summary and analysis,this paper systematically studied the characteristics and development rules of karst development along the railway and the engineering risks caused by karsts.The research results show that the main characteristics of karst development along this railway are long karst sections,diverse types,uneven development intensity,poor regularity,and high concealment.Factors such as lithology,structure and topography are closely related to karst development.The development of karst makes engineering survey and exploration difficult,and the risk of drilling-induced collapse is prominent,which brings direct construction safety risks and potential engineering safety impacts.
作者
张柯宏
ZHANG Kehong(China Railway First Survey and Design Institute Group Co.Ltd.,Xi’an 710043,China;Shaanxi Railway and Underground Traffic Engineering Key Laboratory(FSDI),Xi’an 710043,China)
出处
《铁道建筑》
北大核心
2021年第9期104-108,共5页
Railway Engineering
基金
中铁第一勘察设计院集团有限公司科研课题(院科19-80)。
关键词
岩溶
南宁—玉林铁路
发育特征
发育规律
工程风险
karst
Nanning-Yulin high speed railway
developmental characteristics
developmental rules
engineering risk
