Zobrazeno 1 - 10
of 784
pro vyhledávání: '"WANG Enyuan"'
Publikováno v:
Meikuang Anquan, Vol 53, Iss 10, Pp 57-63 (2022)
A multifunctional outburst simulation test system was independently developed to monitor the temperature of the coal seam and roadway throughout the entire outburst process. Outburst simulation experiments under different gas pressures were carried o
Externí odkaz:
https://doaj.org/article/16e9f72db50f465d8148602085f77c30
Publikováno v:
Meikuang Anquan, Vol 51, Iss 10, Pp 46-51 (2020)
In order to systematically describe the electromagnetic radiation monitoring and early warning technology and application status of coal and gas outburst, the paper analyzes in detail coal and gas outburst electromagnetic radiation monitoring technol
Externí odkaz:
https://doaj.org/article/67e471f56f29440d9f8af3b095f68619
Publikováno v:
Gong-kuang zidonghua, Vol 44, Iss 2, Pp 55-62 (2018)
In order to solve problem of reasonable arrangement of gas drainage borehole in coal seam containing gangue, a solid-gas coupling model of gas drainage was deduced with initial and boundary conditions by establishing control equation of coal and rock
Externí odkaz:
https://doaj.org/article/95950319e4454cc2b4c7fd708ee753b7
Publikováno v:
Gong-kuang zidonghua, Vol 44, Iss 1, Pp 17-21 (2018)
For the demand of automation and accuracy of coal and gas outburst early warning, a remote intelligent monitoring and warning system for coal and gas outburst was developed. The system constitution was introduced as well as key technologies including
Externí odkaz:
https://doaj.org/article/ad842f2b47824da3a91b4d736181aee3
Publikováno v:
Gong-kuang zidonghua, Vol 43, Iss 6, Pp 42-46 (2017)
For difficult rock burst monitoring and early-warning for thick coal seam in deep mining, a rock burst early-warning model based on Logistic regression was established by use of conventional indexes (support resistance, borehole stress and gas concen
Externí odkaz:
https://doaj.org/article/b4cf165f46c64c30919a9bb569def6b4
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:
Gong-kuang zidonghua, Vol 42, Iss 2, Pp 7-11 (2016)
In allusion to shortcomings of current evaluation methods about rock burst tendency of coal seam, a model was built for comprehensively evaluating rock burst tendency of coal seam on basis of Hamming distance theory. Dynamic failure time, impact ener
Externí odkaz:
https://doaj.org/article/d259045608c4459793874108adb09dc2
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
Publikováno v:
Gong-kuang zidonghua, Vol 41, Iss 8, Pp 38-42 (2015)
In order to promote application of acoustic emission monitoring technology in effect evaluation of coal seam hydraulic fracturing, coal seam hydraulic fracturing process was monitored by use of coal and rock dynamic disaster acoustoelectric monitor,
Externí odkaz:
https://doaj.org/article/ee85f85fffd74df9ac4b2106f1373a48
Publikováno v:
Gong-kuang zidonghua, Vol 41, Iss 5, Pp 29-34 (2015)
In view of problem that inner mechanism of coal and gas outburst was very complex and it was difficult to establish an appropriate multivariate nonlinear prediction model, prediction method of coal and gas outburst based on catastrophe progression me
Externí odkaz:
https://doaj.org/article/773d675261fb4a4ab67861c5f0abfe20