Xuehua Chen

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When coal mining under the railway, the surface deformation caused by coal mining must be less than the railway allowed. The stability of the protection pillar is an important factor that affects nearly the surface deformation. Therefore, the stability of protection pillar is the key to coal mining under the railway. In this paper we determine the(More)
In order to effectively prevent the roof caving accidents occurs of the old roof weighting, the SOS microseism monitoring and measuring system was applied to the full time monitoring and measuring on the working face since the beginning of coalface mining start. Statistical analysis of micro earthquake events, incident frequency and event total energy(More)
Blasting pressure release of roof deep hole in the fully-mechanized face interconnection can shorten the first collapse step distance of roof, to avoid rock burst disasters that may caused a large area of roof collapse. Based on the actual geological condition of 6303 working face interconnection in Jining No.3 Coal Mine, from the rock blasting mechanism,(More)
High-resolution optical and SAR images are fused to detect the earthquake damage for the 2008 Wenchuan earthquake. First, all the images should be projected and registered in a united geo-reference to get a superposition building ground features. The quantitative correlation coefficient from an Envisat ASAR image series was used as a rapid and direct way to(More)
The numerous recent laboratory and field examples show the potential benefits of seismic low frequencies in hydrocarbon detection. To simulate the frequency-dependent response of turbidite reservoirs in JZ Area, the Bohai Sea, China, and then implement frequency-dependent detection of the hydrocarbon accumulation based on low frequencies, we expanded a(More)
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