Zobrazeno 1 - 10
of 349
pro vyhledávání: '"Song Dazhao"'
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
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
Publikováno v:
Lithosphere, Vol 2021, Iss Special 4 (2022)
AbstractIn this paper, a new way of characterizing the mining-driven complex geological deformations is presented by utilizing a continuous real-time microseismic (MS) data acquired through passive seismological monitoring. The data was processed, an
Externí odkaz:
https://doaj.org/article/aa01a9bee1ed4c1a93fe6e0a99dd34c0
Classification of coal seam outburst hazards and evaluation of the importance of influencing factors
Publikováno v:
Open Geosciences, Vol 9, Iss 1, Pp 295-301 (2017)
Coal and gas outbursts are the result of several geological factors related to coal seam gas (coal seam gas pressure P, coal seam sturdiness coefficient f and coal seam gas content W), and these parameters can be used to classify the outburst hazard
Externí odkaz:
https://doaj.org/article/2c89e72a998c41aaac14e2649a159b60
Publikováno v:
Gong-kuang zidonghua, Vol 42, Iss 3, Pp 39-43 (2016)
Numerical simulation was conducted for hydraulic fracturing process in coal seam according to solid-liquid coupling equations and Mohr-Coulomb principle. The evolution of seepage field, stress field and fracture field (three fields) during process of
Externí odkaz:
https://doaj.org/article/2884b2c1cdc14b33ac65ac8530a7598b
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
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
Publikováno v:
Gong-kuang zidonghua, Vol 41, Iss 8, Pp 72-76 (2015)
By establishing real-time monitoring system of resistivity variation regularities of loaded coal, real-time resistivity variation law of natural raw coal samples and raw coal samples with different moisture content in uniaxial compressive failure pro
Externí odkaz:
https://doaj.org/article/8f130eb4b8404b8e835b46970547fd5b
Autor:
Ma, Yanran, He, Shengquan, Song, Dazhao, He, Xueqiu, Chen, Tuo, Shen, Feng, Baig, Osama, Luo, Siyu, Wang, Jia
Publikováno v:
In International Journal of Pressure Vessels and Piping August 2024 210