Study on in-situ test of rock-bolted crane girder in Xiaowan Hydropower Station

TU Zhi-jun; CUI Wei

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Study on in-situ test of rock-bolted crane girder in Xiaowan Hydropower Station

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- Study on in-situ test of rock-bolted crane girder in Xiaowan Hydropower Station
- Vol. 28, Issue 6, (2007)
- 作者机构：
  
  中国水利水电第十四工程局科研设计院,昆明,650041
- 作者简介：
- 基金信息：
- DOI：
  CLC： TV223
- Online First：13 September 2013，
  
  Published：2007
- 稿件说明：
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TU Zhi-jun, CUI Wei. Study on in-situ test of rock-bolted crane girder in Xiaowan Hydropower Station[J]. 2007, 28(6).
DOI：

TU Zhi-jun, CUI Wei. Study on in-situ test of rock-bolted crane girder in Xiaowan Hydropower Station[J]. 2007, 28(6). DOI：

摘要

小湾水电站地下厂房是目前世界上最大的地下厂房之一，采用了岩锚吊车梁结构形式，厂房开挖跨度和高度分别为 28.30 m和79.88 m。由于岩锚梁通过两条宽度为0.5～8.5 m的陡倾断层，其施工期与运行期的稳定性成为关注的问题之一。在厂房洞室群的尾水闸门室中，选择具有相似工程地质条件的区域进行了现场模型试验研究，包括主要监测仪器的布置和加卸载过程设计，并对监测结果进行了分析。模型试验表明岩锚吊车梁承载能力满足设计要求，安全性有保障。

Abstract

The anchored crane beam is used in the underground power house of Xiaowan Hydropower Station in which the generator room

one of the biggest rooms under construction

is 28.3 m in width and 79.88 m in height. Two faults with width ranging from 0.5 to 8.5 m and in high dip angle cross the generator room and the concrete crane beam. Therefore

the stability of the rock-bolted crane girder needs to be studied before the construction. This paper introduces the in situ model test that is carried out in the draft-tube gate room with the similar engineering geology condition. The setup of the monitoring instrument and the process of loading are included. The monitoring data are carefully analyzed; and the model test results demonstrate that the anchored crane beam can work at full capacity and its stability is guaranteed.

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Related Institution

中国科学院武汉岩土力学研究所岩土力学与工程国家重点实验室，武汉 430071 2. 湖北清江水电开发有限责任公司

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