土工基础

›› 2016, Vol. 30 ›› Issue (6): 631-633.

• 工程实录 • 上一篇    下一篇

三道沟林场水电站主要工程地质问题分析

刘秀宝，邢旭飞，张 伟，苏 庆   

  1. （中水东北勘测设计研究有限责任公司，长春 130012）
  • 收稿日期:2015-12-24 修回日期:2016-01-12 出版日期:2016-12-20 发布日期:2016-12-22
  • 作者简介:刘秀宝（1983-），男，工程师，研究方向为水利水电工程及工业与民用建筑工程地质勘察。

Engineering Geology Challenges in the Sandaogou Forest Farm Hydropower Station Project

LIU Xiubao, XING Xufei, ZHANG Wei, SU Qing   

  1. (China Water Northeastern Investigation, Design ＆ Research Co., Ltd., Changchun 130012)
  • Received:2015-12-24 Revised:2016-01-12 Online:2016-12-20 Published:2016-12-22

摘要： 三道沟林场水电站的主要工程地质问题包括坝基缓倾角节理，引水隧洞工程区围岩稳定性，压力管道——厂房区边坡稳定性。在工程地质勘察的基础上对工程区的地形地貌、地层岩性、地质结构进行了分析，通过围岩分类对引水隧洞岩体稳定性进行了分析与评价，对堆积体边坡的稳定性进行了评价，最终对主要的工程地质问题进行了分析评价并提出了相应的处理措施。

关键词: 三道沟林场水电站, 工程地质, 缓倾角节理, 围岩, 边坡稳定性

Abstract: The major geology challenges in the Sandaogou Forest Farm Hydropower Station Project are：low dip angle joints in the bedrock of dam foundations; stability of rock mass surrounding the intake water tunnel; pressurized water pipes and rock slope stability at the power house. This paper presents the results of the geotechnical investigations. The geological, lithological and topographical evaluations at the proposed site are systematically presented. The stability of the intake water tunnel is evaluated throughout the rock mass classification process. Finally, the stability of the rock slope is numerically investigated. The engineering mitigations and recommendations for the major issues encountered in the constructions are also presented in the paper.

Key words: Sandaogou Forest Farm Hydropower Station Project, Engineering Geology, Low Dip Angle Joints, Rock Mass, Stability of Rock Slopes