DEFORMATION AND FAILURE OF CONCRETE LINING IN VERTICAL SHAFT AT INTERSECTIONS WITH HORIZONTAL TUNNELS

被引：3

作者：

Tarasov, V. V. ^{[1
]}

Aptukov, V. N. ^{[1
,2
]}

Pestrikova, V. S. ^{[1
]}

机构：

[1] VNII Galurgii, Perm 614000, Russia

[2] Perm State Natl Res Univ, Perm 614000, Russia

来源：

JOURNAL OF MINING SCIENCE | 2020年 / 56卷 / 05期

关键词：

mine shaft; instable rocks; in-situ observations; concrete lining; fractures; salt rock creep; intersection; mathematical modeling;

D O I：

10.1134/S1062739120057056

中图分类号：

TD [矿业工程];

学科分类号：

0819 ;

摘要：

The article describes the long-term in-situ observations and inspection of concrete lining in air inlet shaft No. 3 in Uralkali's mine, which reveal the main causes of the lining failure at intersections with horizontal tunnels and in the areas of instable rocks. Numerical modeling of rock creeping and damage areas in lining at intersections with tunnels is performed in the axially symmetric and three-dimensional formulations. The calculations agree with the observation data, which proves efficiency of mathematical modeling in estimation of deformation and failure of concrete lining during shaft design and operation. Prediction of damage evolution in concrete lining in shaft No. 3 is carried out for the next 10 years.

引用

页码：726 / 731

页数：6

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