A5065924990- Particle physics theoretical and experimental studies
- Atomic and Subatomic Physics Research
- Dark Matter and Cosmic Phenomena
- High-Velocity Impact and Material Behavior
- High-Energy Particle Collisions Research
- Structural Response to Dynamic Loads
- Quantum Chromodynamics and Particle Interactions
- Grouting, Rheology, and Soil Mechanics
- Geoscience and Mining Technology
- Transportation Safety and Impact Analysis
- Geomechanics and Mining Engineering
China Coal Research Institute (China)
2024
Tsinghua University
2013-2014
The China Dark Matter Experiment Collaboration reports the first experimental limit on weakly interacting massive particles (WIMPs) dark matter from 14.6 kg-days of data taken with a 994 g p-type point-contact germanium detector at Jinping underground laboratory where rock overburden is more than 2400 m. energy threshold achieved was 400 eVee. According to kg-day live data, we placed...
The China Dark Matter Experiment reports results on light WIMP dark matter searches at the Jinping Underground Laboratory with a germanium detector array total mass of 20 g. physics threshold achieved is 177 eVee ("ee" represents electron equivalent energy) 50% signal efficiency. With 0.784 kg-days data, exclusion region spin-independent coupling nucleon derived, improving over our earlier bounds less than 4.6 GeV.6 MoreReceived 21 March 2014DOI:https://doi.org/10.1103/PhysRevD.90.032003©...
As an important means to control the hard roof, presplitting blasting is main measure for controlling rock burst disaster in key strata of deep mine west. Taking typical thick and layer, Menkeqing Coal Mine as analysis object, mechanical FLAC 3D numerical models roof energy release are established. The structural characteristics evolution laws layers during mining operations analyzed, mechanism behavior revealed. influence combined scheme on law stress field was studied. engineering practice...
After more than ten years of mining, the subsequent replacement resources 4 # coal in Xiagou Mine are insufficient. In order to ensure normal production mine, Coal needs recycle lower layer seam. The design issue roadway layout and support mode for bottom recovery left by strong disturbance has be resolved. Through theoretical evaluation computer simulation, this study investigates appropriate staggered distance following upper slicing mining as well distributed stress law under various...