南水北调西线工程若干工程地质问题研究  

STUDY ON SOME ENGINEERING GEOLOGICAL PROBLEMS OF WEST ROUTE OF SOUTH-TO-NORTH WATER TRANSFER PROJECT

作　　者：王学潮[1] 

机构地区：[1]黄河勘测规划设计有限公司,河南郑州450003

出　　处：《岩石力学与工程学报》2009年第9期1745-1756,共12页Chinese Journal of Rock Mechanics and Engineering

基　　金：国家科技支撑计划资助项目(2006BAB04A06)

摘　　要：基于工程实践,探讨西线一期工程区域稳定性评价的原则和基本思路,根据有关资料,给出工程区的稳定性分区,认为西线工程位于基本稳定区,附近断裂大多数不具有活动性,坝址场区内没有发现活动断裂和地震震中分布,没有活动断裂穿越引水隧洞。隧洞围岩主要为II～III类围岩,局部为IV～V类围岩,岩爆强度不高,围岩大变形主要发生在板岩段和构造破碎带处,地质条件适合TBM施工。根据水文地质资料,给出各隧洞段的涌水量。可能引起强透水或涌水的地段主要在浅埋过沟段、向斜褶皱核部破碎岩体形成的富水段、断层破碎带及其影响带。The assess principle and basic idea of regional tectonic stability are discussed based on engineering practice. The zoning of regional tectonic stability is obtained according to geological data in region of first stage West Route of South-to-North Water Transfer Project. Faults nearby the project are nonactive. There are no active faults and seismic epicenters in dam sites and tunnel areas. The crust of the project site is relative stable. The surrounding rock masses are mainly grades II-III, and rock classifications of grades IV-V are distributed regionally. Density of rockburst is not high. Deformational phenomena of surround rocks exist in slate strata and faulted zones. In case of surrounding rock and deformation feature, the tunnel boring machine（TBM） is applicable to the project. The possible water quantities flowing into tunnel are calculated initially. There are possible zones of groundwater inflowing in the section of shallow tunnel, syncline core and faulted zones.

关 键 词：工程地质 南水北调西线工程 区域稳定性 围岩稳定性 涌水 

分 类 号：P642[天文地球—工程地质学]