A Simulation Study on the Spatial-Temporal Characteristics of Pore Water Pressure and Roof Water Inrush in an Aquiclude-Reference-Cited by-同舟云学术

A Simulation Study on the Spatial-Temporal Characteristics of Pore Water Pressure and Roof Water Inrush in an Aquiclude

Published:2021-02-15 Issue: Volume:2021 Page:1-8
ISSN:1875-9203
Container-title:Shock and Vibration
language:en
Short-container-title:Shock and Vibration

Author:

Yang Tao¹²,Li Ji¹²^ORCID,Wan Longwen³,Wang Sheng³

Affiliation:

1. Xi’an University of Science and Technology, Xi’an, Shaanxi 710054, China

2. Key Laboratory of Western Mine Exploitation and Hazard Prevention with Ministry of Education, Xi’an University of Science and Technology, Xi’an 710054, China

3. Longmenxia South Coal Mine of Sichuan Huayingshan Coal Industry Co., Ltd., Guang’an 638020, China

Abstract

As the working face advances, the overlying aquiclude is subjected to periodic dynamic loads, causing pore water pressure distortion, which provides important forewarning for a water inrush disaster in shallow coal seams. In order to analyze the pore water pressure in an aquiclude and determine the spatial-temporal characteristics of the water inrush, the aquiclude is simplified into a saturated, porous, liquid-solid medium and a viscoelastic dynamic model is created to obtain the analytical solution of the pressure distribution. FLAC3D is used to develop a fluid-solid coupling model and to analyze the characteristics of the pressure change and overburden under different mining intensities. This study on pore water pressure in an aquiclude and the determination of the spatial-temporal characteristics of the water inrush provides a foundation for developing early-warning systems for roof water inrush.

Funder

National Natural Science Foundation of China

Publisher

Hindawi Limited

Subject

Mechanical Engineering,Mechanics of Materials,Geotechnical Engineering and Engineering Geology,Condensed Matter Physics,Civil and Structural Engineering

Link

http://downloads.hindawi.com/journals/sv/2021/6643894.pdf

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