12 Result(s)
within
Earth Sciences
** Dong-ming
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Article
A triaxial creep model for coal containing gas and its stability analysis
Triaxial creep tests on CCG specimens were systematically performed using a self-made creep seepage experimental apparatus for determining the creep law of CCG. An improved triaxial creep model of CCG was esta...
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Article
Numerical simulation scattered imaging in deep mines
Conventional seismic exploration, mostly based on reflection theory, hardly has accurate imaging results for disaster geologic bodies which have small scale, steep dip, or complex structure. In this paper, we ...
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Article
Reduction of distortion and improvement of efficiency for gridding of scattered gravity and magnetic data
This paper presents a reasonable gridding-parameters extraction method for setting the optimal interpolation nodes in the gridding of scattered observed data. The method can extract optimized gridding paramete...
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Article
Deghosting towed streamer data in τ/p domain based on rough sea surface reflectivity
Currently, the deghosting of towed streamer seismic data assumes a flat sea level and a sea-surface reflection coefficient of −1; this decreases the precision of deghosting. A new method that considers the rou...
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Article
Damage Evolution and Post-peak Gas Permeability of Raw Coal Under Loading and Unloading Conditions
Coalbed methane, a naturally occurring gas in coal, is regarded as a relatively clean-burning and eco-friendly resource. During mining, coalbed methane may be leaked to the environment, leading to potential co...
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Article
Understanding the triggering mechanism and possible kinematic evolution of a reactivated landslide in the Three Gorges Reservoir
More than 5000 landslides or potential landslides have been induced in the Three Gorges Reservoir (TGR) region since the impoundment in 2003, which have caused great damage and remain a huge threat to the dam ...
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Article
Experimental investigation on the failure mechanism of a rock landslide controlled by a steep-gentle discontinuity pair
A type of rock landslide is very common in practical engineering, whose stability is mainly controlled by the rock bridge between the steep tensile crack at the crest and the low-inclination weak discontinuiti...
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Article
Research on Application of Transient Electromagnetic Method in Hydraulic Fracturing
Coal is China’s dominant energy at present,but gas outburst occurs frequently in gassy coal mines, and it causes significant losses to people’s lives and properties. Hydraulic fracturing is a valuable technolo...
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Article
Multi-hole joint acquisition of a 3D-RVSP in a karst area: Case study in the Wulunshan Coal Field, China
Conventional surface seismic exploration in areas with complex surfaces such as karst landforms has been faced with the problem of poor excitation and reception conditions. RVSP (reverse vertical seismic profi...
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Article
Influence of excavation schemes on slope stability: A DEM study
Slope failure due to improper excavation is one of common engineering disasters in China. To explore the failure mechanism of soil slope induced by toe excavation, especially to investigate the influence of ex...
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Article
Study on Mechanical and Permeability Characteristics of Containing Gas Coal-Rock Under Conventional Triaxial Compression
In this paper, the mechanical and permeability experiments of containing-gas raw coal and sandstone samples under conventional triaxial compression were carried out by using the thermal fluid solid coupling tr...
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Article
Effect of freeze—thaw cycle on hydraulic conductivity of compacted clayey soil
When filling embankment dams in cold regions, engineers must solve two freeze—thaw cycle (FTC)-induced soil problems. First, compacted soil constituting the dam is subjected to the FTC during dam construction....
