地下水封洞库围岩块体稳定性与支护可靠性分析

doi:10.12068/j.issn.1005-3026.2023.04.012

东北大学学报（自然科学版） ›› 2023, Vol. 44 ›› Issue (4): 544-550.DOI: 10.12068/j.issn.1005-3026.2023.04.012

地下水封洞库围岩块体稳定性与支护可靠性分析

乔丽苹¹，卢卫莉¹，闵忠顺²，王者超³

(1.东北大学资源与土木工程学院，辽宁沈阳110819； 2. 辽河油田勘探开发研究院，辽宁盘锦124010；3.东北大学深部金属矿山安全开采教育部重点实验室，辽宁沈阳110819)

发布日期:2023-04-27
通讯作者: 乔丽苹
作者简介:乔丽苹(1982-)，女，山西晋城人，东北大学副教授; 王者超(1980-)，男，山东高唐人，东北大学教授.
基金资助:
国家自然科学基金资助项目(42177157)；国家重点研发计划项目(ZX20210496)；沈阳市中青年人才支持计划项目(RC210405)；中央高校基本科研业务费专项资金资助项目(N2101005，N2101037).

Reliability Analysis of Rock Block Stability and Support for Underground Water-Sealed Storage Caverns

QIAO Li-ping¹， LU Wei-li¹， MIN Zhong-shun²， WANG Zhe-chao³

1. School of Resources & Civil Engineering， Northeastern University， Shenyang 110819， China; 2. Liaohe Oilfield Exploration and Development Research Institute， Panjin 124010， China; 3. Key Laboratory of Ministry of Education on Safe Mining of Deep Metal Mines， Northeastern University， Shenyang 110819， China.

Published:2023-04-27
Contact: WANG Zhe-chao
About author:-
Supported by:
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摘要/Abstract

摘要： 结构面的几何参数和力学参数随机分布导致岩体工程的稳定性具有高度不确定性.以我国某地下水封石油储备库项目为背景，把结构面倾向、倾角、黏聚力及内摩擦角作为随机变量，运用可靠度理论，在数值模拟的基础上，研究了围岩块体稳定性和支护系统可靠性，并对支护参数进行检验与优化.结果表明:Ⅰ~Ⅳ级围岩块体稳定性可靠度指标分别为4.23，1.68，0.65和-0.07；对Ⅱ级、Ⅲ级和Ⅳ级围岩块体采取支护措施后，可靠度指标分别为3.3，3.0和2.0；并对其支护间排距进行优化，推荐值分别为2.8，2.0和1.6m.

关键词: 地下水封洞库；参数不确定性；Monte Carlo法；失效概率；支护可靠度；参数检验与优化

Abstract: The stochastic distribution of geometrical and mechanical parameters of rock joints causes a high degree of uncertainty in the stability of rock mass engineering. Taking a project of underground water-sealed storage caverns as an example， and considering the uncertainty of dip directions， dip angles， cohesion and friction angles， the reliability of surrounding rock block stability and support system are studied using the reliability theory and numerical simulation， and the support parameters are tested and optimized. The results show that the reliability indexes of the surrounding rock blocks of Grade Ⅰ to IV are 4.23， 1.68， 0.65 and -0.07， respectively. After the support system is applied to Grade II， III and IV surrounding rocks， the reliability indexes of the surrounding rock blocks are 3.3， 3.0 and 2.0， respectively. The row spacing between supports is optimized， and the recommended values are 2.8， 2.0 and 1.6m for the surrounding rock blocks of Grade II， III and IV， respectively.

Key words: underground water-sealed storage cavern; parameter uncertainty; Monte Carlo method; failure probability; support reliability; parameter inspection and optimization

中图分类号:

TE82

乔丽苹，卢卫莉，闵忠顺，王者超. 地下水封洞库围岩块体稳定性与支护可靠性分析[J]. 东北大学学报（自然科学版）, 2023, 44(4): 544-550.

QIAO Li-ping， LU Wei-li， MIN Zhong-shun， WANG Zhe-chao. Reliability Analysis of Rock Block Stability and Support for Underground Water-Sealed Storage Caverns[J]. Journal of Northeastern University(Natural Science), 2023, 44(4): 544-550.

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地下水封洞库围岩块体稳定性与支护可靠性分析

Reliability Analysis of Rock Block Stability and Support for Underground Water-Sealed Storage Caverns

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