Study of Rock Mass Classification and Support Technology of Underground Watersealed Petroleum Storage Caverns

doi:10.3973/j.issn.1672-741X.2016.05.004

Tunnel Construction ›› 2016, Vol. 36 ›› Issue (5): 518-524.DOI: 10.3973/j.issn.1672-741X.2016.05.004

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Study of Rock Mass Classification and Support Technology of Underground Watersealed Petroleum Storage Caverns

CHEN Qinghuai¹, WEN Xinliang²

(1. China Railway Airport Construction Group Co., Ltd., Beijing 100093, China; 2. Erchu Co., Ltd. of China Railway Tunnel Group, Sanhe 065201, Hebei, China)

Received:2015-11-12 Revised:2016-03-16 Online:2016-05-20 Published:2016-05-25

Abstract

Abstract:

The underground watersealed petroleum storage caverns are popularly used in petroleum reserve worldwide. The quality of rock mass should be evaluated accurately so as to guarantee the stability of caverns and rational support design. Taking 3 typical sections of 4 north caverns of a underground watersealed petroleum storage cavern for examples, the geological conditions and the distribution of joint are detected by means of geological investigation, 3D photogrammetric monitoring system (ShapeMetriX 3D) and radar detection. And then the rock masses of the test sections are classified by means of Qsystem classification method. The support scheme is decided according to similar projects and related criteria; and the supporting effect is examined by means of FLAC3D simulation and site monitoring method. The construction results show that the support design is rational and the stability of the rock can be guaranteed.

Key words: underground watersealed petroleum storage cavern, rock mass classification, rock mass discontinuity structure, Qsystem classification method, support

CLC Number:

U 452.1+2

CHEN Qinghuai, WEN Xinliang. Study of Rock Mass Classification and Support Technology of Underground Watersealed Petroleum Storage Caverns[J]. Tunnel Construction, 2016, 36(5): 518-524.

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Study of Rock Mass Classification and Support Technology of Underground Watersealed Petroleum Storage Caverns

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