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首页> 外文会议>EARTH and SPACE 2012;ASCE Aerospace Division conference on engineering, construction, and operations in challenging environments;NASA/ASCE workshop on granular materials in space exploration >Research on Static and Dynamic Reinforcement Effect of Concrete Replacement Holes for 2# Potential Slide Block at Left Bank of Baihetan Hydropower Station
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Research on Static and Dynamic Reinforcement Effect of Concrete Replacement Holes for 2# Potential Slide Block at Left Bank of Baihetan Hydropower Station

机译：白鹤滩水电站左岸2＃电位滑块混凝土更换孔的静动力加固效果研究。

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摘要

By the static strength reduction method, time history analysis method, dynamic strength reduction method based on numerical calculation, the static and dynamic stability of 2# potential sliding block in natural state and the reinforcement effect are researched, which is located at the left bank of Baihetan Hydropower Station in western China. As the static and dynamic stability of the block in natural state can not meet the requirement of design specification, two concrete replacement holes are arranged in the bottom sliding surface for reinforcement. Two simulation methods for concrete replacement holes are used for the research of reinforcement effect, i.e. equivalent area simulation and detail simulation. Mohr-Coulomb failure criterion is taken in the elastic-plastic calculation, and the static and dynamic safety factors after reinforcement are calculated. The results show that the static stability safety factor obtained by equivalent simulation is less than that by detail simulation, and the dynamic stability safety factor is slightly greater than that by detail simulation, and the safety factors by the two simulation method are overall similar with each other. According to the research results, the static and dynamic stability of 2# block after reinforcement can satisfy the requirement of the design specification, and it can be considered that the reinforcement plan is reasonable.
机译：利用静力折减法，时程分析法，基于数值计算的动强度折减法，研究了2＃势态滑块在自然状态下的静，动态稳定性及补强效果，该静力折减法位于桥体左岸。中国西部的白鹤滩水电站。由于自然状态下砌块的静态和动态稳定性不能满足设计规范的要求，在底部滑动面设有两个混凝土更换孔进行加固。用于研究混凝土置换孔的两种模拟方法用于研究钢筋的效果，即等效面积模拟和细部模拟。在弹塑性计算中采用了Mohr-Coulomb破坏准则，并计算了加固后的静态和动态安全系数。结果表明，等效仿真得到的静态稳定安全系数小于细部仿真得到的，静态稳定安全系数略大于细部仿真得到的静态稳定安全系数，两种仿真方法得出的安全系数总体上相似。其他。根据研究结果，加固后的2＃砌块的静，动力稳定性可以满足设计规范的要求，可以认为加固方案是合理的。

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