Výsledky vyhledávání

Akademický článek

New progress in theory and technology of electromagnetic radiation in coal and rock

Autor: HE Xueqiu, WEI Menghan, SONG Dazhao, LI Zhenlei, QIU Liming, HE Shengquan, MAJID Khan, WANG Anhu

Publikováno v: Meitan kexue jishu, Vol 51, Iss 1, Pp 168-190 (2023)

As an important basic energy and industrial raw material in China, the safe mining of coal is the key to ensuring the national energy security and supporting the stable development of economy and society. With the gradual depletion of shallow coal re

Externí odkaz: https://doaj.org/article/9b7b97559ffd46a489c7bc78319854c2

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Akademický článek

Analysis of coal pillar rock burst appearance in multi-seam mining with thick and hard roof

Autor: YANG Wei, LAN Shirui, LI Zhenlei, ZHANG Chuanjiu, LI Hongping, ZHONG Taoping, SONG Dazhao, ZHOU Chao

Publikováno v: Gong-kuang zidonghua, Vol 48, Iss 2, Pp 70-76 (2022)

The existing research only analyzes the rock burst appearance characteristics under specific conditions, lacks research on the rock burst appearance induced by coal pillar under the condition of thick and hard roof. In order to solve this problem, ta

Externí odkaz: https://doaj.org/article/d437919e499b4aed85e558610227bf50

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Akademický článek

A novel acoustic emission parameter for predicting rock failure during Brazilian test based on cepstrum analysis

Autor: Wang Honglei, Li Zhenlei, He Xueqiu, Song Dazhao, Guo Haifeng

Publikováno v: E3S Web of Conferences, Vol 192, p 01004 (2020)

Acoustic emission (AE) is widely used in the monitoring of coal and rock stability and early warning of dynamic disasters in mines. In this work, the Brazilian split test was carried out on limestone samples along with collecting full waveform AE sig

Externí odkaz: https://doaj.org/article/180910975a6446148c39ec81746d6f0a

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Akademický článek

Numerical simulation study on rheological failure characteristics of rock mass under high stress

Autor: Qiu Liming, He Xueqiu, Song Dazhao, Li Zhenlei

Publikováno v: E3S Web of Conferences, Vol 192, p 04003 (2020)

This paper uses the RFPA numerical simulation software to establish a numerical model of the rheological failure of the rock mass under stress. Rheological failure characteristics of the body was researched, and the results shows: (1) The rupture seq

Externí odkaz: https://doaj.org/article/310e1b25034e46419606b0e34ac46608

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