Risk analysis of ground subsidence accidents caused by underground storage caverns in salt rock

JING Wen-jun; YANG Chun-he; KONG Jun-feng; JI Wen-dong

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Risk analysis of ground subsidence accidents caused by underground storage caverns in salt rock

更新时间：2026-06-25

- Risk analysis of ground subsidence accidents caused by underground storage caverns in salt rock
- Vol. 32, Issue S2, (2011)
- 作者机构：
  
  1. 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. 重庆大学西南资源开发及环境灾害控制工程教育部重点实验室,重庆,400044
- 作者简介：
- 基金信息：
- DOI：
  CLC： TU354
- Online First：26 August 2011，
  
  Published：2011
- 稿件说明：
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JING Wen-jun, YANG Chun-he, KONG Jun-feng, et al. Risk analysis of ground subsidence accidents caused by underground storage caverns in salt rock[J]. 2011, 32(S2).
DOI：

JING Wen-jun, YANG Chun-he, KONG Jun-feng, et al. Risk analysis of ground subsidence accidents caused by underground storage caverns in salt rock[J]. 2011, 32(S2). DOI：

摘要

在盐岩储备库的建设和运营过程中，由于腔体不断收缩而导致上覆岩层发生变形，从而引起储库上部地表发生碟状沉降变形，甚至造成地表塌陷事故是盐岩地下储备库的重要事故类型之一。针对盐岩地下储备库引发的地表沉陷事故进行分析，找出了该类事故的发生机制并建立相应的故障树模型，计算得到地表沉陷事故的14种发生模式和10个基本致因事件，并提出了相应的控制措施。并从风险分析的角度对盐岩储备库引发的地表沉降事故的后果严重性进行预测分析研究，并以湖北云应盐矿为例，假设该地区在储气库的建设或运营过程中发生地表沉降事故，采用模糊综合评价法对该类事故后果的严重性进行风险预测，得出后果为可忽略、需考虑、严重、非常严重、灾难性的概率分别为0.24、0.28、0.29、0.15、0.04。为有效预防盐岩储备库运营引发地表沉陷事故以及在事故发生前进行损失严重性预测提供了依据和方法

Abstract

In the construction and operation processes of underground storage cavern in bedded salt

ground subsidence

even earth surface collapse accidents

resulted by the storage cavern contraction and overlying rock deformation is an important accident type. Aimed at the ground subsidence accidents caused by underground storage cavern

this paper reveals the mechanism and builds the fault tree model of this type of accidents

finds out 14 failure patterns as well as 10 basic influence factors

also

puts forward the related control measures. Then Yunmeng-Yingcheng salt mine is taken as an example to forecast the severity of accident consequence. On the premise that ground subsidence accident happened at Yunmeng-Yingcheng salt mine

the severity probability of the accident consequence is analyzed using fuzzy comprehensive evaluation. Research results show that the severity of accident consequence belong to negligible level

to be considered level

serious level

very serious level and calamitous level are 0.24

0.28

0.29

0.15

0.04 respectively. The results are useful to prevent ground subsidence accidents caused by the storage caverns. What’s more

it also provides according theory and a feasible way for appraising the loss severity before the accident happening

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Key Laboratory for the Exploitation of Southwestern Resources & the Environmental Disaster Control Engineering, Ministry of Education, Chongqing University

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