Preliminary analysis on safety state of rock wall crane beam in underground powerhouse during
construction period

Dam & Safety ›› 2023, Vol. 0 ›› Issue (1): 33-36.

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Preliminary analysis on safety state of rock wall crane beam in underground powerhouse during construction period

WANG Xiaoqiang, WU Lu and TANG Huanhuan

PowerChina Northwest Engineering Co., Ltd.

Received:2022-07-06 Revised:2022-09-14 Online:2023-02-10 Published:2023-04-18

施工期地下厂房岩壁吊车梁安全性态初步分析

王晓强，吴露，唐欢欢

中国电建集团西北勘测设计研究院有限公司，陕西西安，71000

作者简介:王晓强（1983—），男，陕西宝鸡人，工程师，长期从事大坝安全监测工作。

Abstract

Abstract:

The rock wall crane beam in underground powerhouse ofa hydropowerstationisreinforced concrete cantilever beam, which is anchored on the side wall by three rows of anchor bolts. By focus on the analysis of the joint opening on surrounding rock surface and the stress deformation of anchor bolts at the junction of surrounding rock and concrete beam, combined with the stress of anchor bolts in surrounding rock and the beam concrete reinforcement stress at each monitoring section, as well as the patrol inspection results, the safety and reliability of rock wall crane beam before load test are comprehensively evaluated, which can provide basis for the load test of rock wall crane beam.

Key words:

"> rock wall crane beam, anchor bolt, monitoring section, anchor stress meter, reinforcement meter, joint meter

摘要：

某水电站地下厂房岩壁吊车梁为钢筋混凝土悬臂梁，由三排锚杆锚固在边墙上。通过重点分析各监测断面围岩面接缝开合度及围岩与混凝土梁体结合处锚杆应力变形，结合各断面围岩内锚杆应力和梁体混凝土钢筋应力，以及巡视检查结果，综合评价岩壁吊车梁荷载试验前的安全可靠性，为岩壁吊车梁荷载试验提供依据。

关键词: 岩壁吊车梁, 锚杆, 监测断面, 锚杆应力计, 钢筋计, 测缝计

CLC Number:

TV731

WANG Xiaoqiang, WU Lu and TANG Huanhuan.

Preliminary analysis on safety state of rock wall crane beam in underground powerhouse during construction period

[J]. Dam & Safety, 2023, 0(1): 33-36.

王晓强, 吴露, 唐欢欢. 施工期地下厂房岩壁吊车梁安全性态初步分析[J]. 大坝与安全, 2023, 0(1): 33-36.

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Preliminary analysis on safety state of rock wall crane beam in underground powerhouse during construction period

施工期地下厂房岩壁吊车梁安全性态初步分析

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