水利水电技术2017，Vol.48Issue(10)：1-9,9.DOI:10.13928/j.cnki.wrahe.2017.10.001
长大深埋水工隧洞设计关键技术研究与实践
Study and practice on key design techniques for long deeply buried hydraulic tunnel
摘要
Abstract
Based on the analysis of the developing history and the study status of long deeply buried tunnel in China,the main engineering geological problems encountered in the project of long deeply buried tunnel is expatiated herein,and then the actual problems encountered during the constructions of the completed and under-construction projects of the long deeply buried tunnels are summarized in combination with the experiences from the design,construction and management of water transfer projects accumulated in many years,in which the extremely complicated engineering geological problems,i.e.sudden water inrush,mud inrush and sand gush,rock burst;large deformation of surrounding rock,high ground temperature,high ground stress,high external water pressure,etc.are analyzed and discussed.The result shows that it is quite important to select the type of TBM equipment in accordance with the main geological problems encountered in the project during the fore-phase of the design of long deeply buried tunnel,while the means of numerical simulation,experimental study,advanced geological forecast,in situ monitoring,etc.must be adopted for the analysis and the study made on those tunnel sections under poor geological conditions of high external water pressure,large deformation of soft rock,rock burst and high ground temperature as well as dynamic adjustment of the design during the design and construction,moreover,it is better to adopt the tunneling principle of lower thrust,lower rotational speed,lower penetration,quick tunneling and continuous tunneling,that is to say,slow is better than stop for the tunneling of poor geological condition,thus the catastrophic results occurred in the similar projects at home and abroad can be avoided.关键词
长大深埋隧洞/复杂地质条件/高地下水/围岩大变形/岩爆综合预测方法/开敞式TBMKey words
long and deeply buried tunnel/complicated geological condition/high ground water level/large deformation of surrounding rock/comprehensive prediction method of rock burst/open TBM分类
水利科学引用本文复制引用
杜雷功..长大深埋水工隧洞设计关键技术研究与实践[J].水利水电技术,2017,48(10):1-9,9.基金项目
国家重点研发计划重点专项项目“长距离调水工程建设与安全运行集成研究及应用”(YS2016YFSF020162) （YS2016YFSF020162）
