土工基础

›› 2015, Vol. 29 ›› Issue (3): 118-121.

• 工程实录 • 上一篇    下一篇

某电站地下主厂房开挖数值模拟

李 超1，彭 璇2，王 源3，罗邦沛4，吴 朗4，杨贞荣4   

  1. （1.贵州大学教育部喀斯特环境与地质灾害防治重点实验室，贵阳 550003；2.贵州省城乡规划设计研究院，贵阳 550004；
    3.贵州地矿工程勘察有限公司，贵阳 550081；4. 贵州有色地质工程勘察公司都匀分公司，贵州都匀 558000）
  • 收稿日期:2014-05-22 出版日期:2015-06-20 发布日期:2015-06-26
  • 作者简介:李 超（1990-），男，硕士生，研究方向为岩土体工程性质及其应用。

Numerical Simulation of the Excavation Process of a Hydropower's Underground Powerhouse

LI Chao1,PENG Xuan2,WANG Yuan3,LUO Bangpei4,WU Lang4，YANG Zhenrong4   

  1. (1. Key Laboratory of Karst Environment and Geohazard Prevention, Ministry of Education, Guizhou University, Guiyang 550003；
    2. Guizhou Urban and Rural Planning & Design Institute, Guiyang 5500043； 3. Guizhou Geoscientific Engineering Survey Co. Ltd., Guiyang 5500813；
    4. Guizhou Nonferrous Geological Investigation Co., Duyun 558000)
  • Received:2014-05-22 Online:2015-06-20 Published:2015-06-26

摘要： 保证大断面硐室开挖过程的稳定是地下工程的一个关键问题。根据某电站地下主厂房工程地质条件和开挖设计方案，运用有限元软件ADINA，建立了二维数值模型进行分析计算，分析了围岩及结构的应力场、位移场及破坏区分布规律。经与监测数据进行比较,表明等效模型的计算结果与监测情况吻合较好，可为类似工程的设计与施工提供参考。

关键词: 开挖过程, ADINA, 锚杆, 弹性模量, 应力, 位移, 监测量控

Abstract: The stability of the large cross sectional underground space during the construction is one of the important topics in underground engineering. The excavation method as well as the sequence of the main plant of an underground power house is numerically simulated twodimensionally by using ADINA software.  In the numerical simulation, the effect of the rock anchored was simulated by an equivalent shotcrete modulus. The stress, displacement and the yield zone are evaluated based on the specific site conditions. The analytical results are found to be consistent with the actual construction monitoring data.

Key words:  Excavation Process, ADINA software, Rock Anchors, Elastic Modulus, Stress Fields, Displacement Fields, Construction Monitoring