Method for filling transverse joints in lining of underground gas storage and underground gas storage

Abstract

The invention provides a method for filling transverse joints in the lining of an underground gas storage and the underground gas storage, and relates to the technical field of underground gas storage. The method for filling transverse joints in the lining of an underground gas storage includes the following steps: determining the positions of multiple backfill pieces relative to the surrounding rock of the gas storage, and the multiple backfill pieces divide the surrounding rock of the gas storage into multiple filling areas; Filled with concrete, which sets to form a concrete lining. The underground gas storage includes concrete lining and backfill, the concrete lining is laid on the surrounding rock of the gas storage, and the concrete lining includes a plurality of blocks, along the longitudinal direction of the surrounding rock of the gas storage, transverse joints are formed between adjacent blocks , the backfill is filled in the transverse seam by the above-mentioned caulking method. In this underground gas storage lining transverse joint filling method, the backfill is used as the construction component of the concrete lining. The airtightness of the gas storage is correspondingly better.

Description

technical field [0001] The invention relates to the technical field of underground gas storage, in particular to a method for filling transverse joints in the lining of an underground gas storage and the underground gas storage. Background technique [0002] The use of underground gas storage for gas storage has the advantages of large storage capacity, long service life, and high safety factor. Among them, underground gas storage is generally equipped with a concrete layer as a lining in the surrounding rock of the gas storage to support and seal the surrounding rock. Due to the wide temperature range of the underground gas storage, which can vary between 0°C and 100°C, the concrete lining will expand and shrink along the longitudinal direction of the underground gas storage, which will affect the adhesion between the concrete lining and the surrounding rock. In order to eliminate the impact of the thermal expansion and contraction deformation of the concrete lining caused ...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention includes providing a method for filling transverse joints in the lining of an underground gas storage and an underground gas storage, so as to solve the problem that the backfilling parts in the existing underground gas storage have poor sealing and sealing performance on the transverse joints, resulting in loss of alignment of the lining. The role of surrounding rock sealing in the gas storage, and the technical problem of poor gas sealing in the underground gas storage

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