Monitoring and Analysis of the Ground Subsidence of a Natural Gas Storage Cavern in Salt Rock

›› 2017, Vol. 31 ›› Issue (4): 476-478.

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Monitoring and Analysis of the Ground Subsidence of a Natural Gas Storage Cavern in Salt Rock

HE Chunhai1, YAO Wei1, LIU Yugang1, CHEN Feng2

(1.PetroChina East Pipeline Company, Shanghai 200122;
2.State Key Laboratory of Geomechanics and Geotechnical Engineering, 
Institute of Rock and Soil Mechanics, Chinese Academy of Science, Wuhan 430071)

Received:2016-09-27 Revised:2016-10-08 Online:2017-08-20 Published:2017-08-22

Abstract

Abstract: The underground spacing formed by the salt extractions can be reused as the natural gas storage facilities. During the operation of the natural gas storage facilities, the ground subsidence might occur as the creep of the salt rock mass and the contraction of the salt rock cavern. It is important to establish an observation network to capture these ground deformations. This paper presents the ground subsidence observation and evaluation results of China’s first natural gas storage facility in the salt rock caverns. The results indicates that the ground subsidence is closely correlated with the salt rock carven contraction.

Key words: Storage Facility inSalt Cavern, Creep of Salt Rock, Ground Subsidence, Survey and Monitoring

HE Chunhai1, YAO Wei1, LIU Yugang1, CHEN Feng2. Monitoring and Analysis of the Ground Subsidence of a Natural Gas Storage Cavern in Salt Rock[J]. , 2017, 31(4): 476-478.

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Monitoring and Analysis of the Ground Subsidence of a Natural Gas Storage Cavern in Salt Rock

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