Results 41 to 50 of about 1,470,376 (107)

Study on bearing capacity characteristics of steel structure support in soft rock roadway

open access: yesEnergy Science & Engineering, 2021
When the soft rock roadway in underground mine is supported by steel frame, the bearing capacity of steel structure is the key to the success of roadway support.
Ya‐bin Wu   +5 more
doaj   +1 more source

Multiple injection techniques to stimulate complex fracture networks in coal reservoirs: A case study on gas disaster reduction of subsurface coal mine in southwest China

open access: yesDeep Underground Science and Engineering, Volume 5, Issue 3, Page 787-808, September 2026.
An experimental device for physical simulation of hydraulic fracturing, comprising: a load‐bearing mechanism with multiple interconnected plates that collectively form an sample chamber; a load‐generating mechanisms, with multiple load‐generating mechanisms arranged within the experimental chamber.
Delei Shang   +5 more
wiley   +1 more source

Analysis of Impact Mechanism and Energy Evolution Characteristics of Different Coal-Rock Systems

open access: yesMeikuang Anquan, 2020
To further study the impact mechanism and energy evolution characteristics of different coal-rock systems, theoretical calculation and RFPA numerical simulation methods were used to compare and analyze different coal-rock systems from the energy point ...
WEI Hui
doaj   +1 more source

Research on Pillarless Mining by Gob-Side Caving under Soft Rock Roof Conditions: A Case Study

open access: yesApplied Sciences, 2023
In China, soft rock roof makes up the majority of coal mine roof, yet it is easy to break due to low strength and poor integrity. As such, it is difficult for the traditional pillar-based roadway protection means and pillarless mining techniques to ...
Jian Hao   +6 more
doaj   +1 more source

Mechanisms of Roadway Instability and Coupled Control Technology for Working Face Passing Through Fault Zones

open access: yesEnergy Science &Engineering, Volume 14, Issue 9, Page 4470-4485, September 2026.
This study mainly explores the instability characteristics of roadways near faults in the working face. Taking the 51104 transportation roadway of the 51104 working face in Shengxin Coal Mine as the main research object, through theoretical analysis, borehole inspection, numerical simulation and on‐site mine pressure observation, the instability ...
Shuaifeng Yin   +4 more
wiley   +1 more source

Surrounding Rock Stability Control Technology of Soft Rock Roadway Passing Water Conductive Faul

open access: yes, 2020
When soft rock roadway passes the water conductive fault fracture zone, the surrounding rock often faces grea tinstability risks. Based on this, FLAC3D is used to perform numerical simulation analysis on the stress, deformation and failure ...
WANG Junliang
core   +1 more source

Research and application of combined load-bearing shell support for deep soft rock roadway

open access: yesGong-kuang zidonghua, 2020
There are many influencing factors and complex conditions in deep soft rock roadway support. The theoretical research is still in the exploratory stage.
DUAN Changrui   +4 more
doaj   +1 more source

“Anchoring-shed-shotcreting” collaborative control technology for limestone roof roadway with soft clay interlayer

open access: yesMeikuang Anquan, 2021
In view of the characteristics of low in-situ strength and poor integrity of surrounding rock of limestone roof roadway with soft clay interlayer, the internal causes of deformation and failure are discussed, and the reinforcement mechanism of “double ...
WANG Junhong, JIAO Jiankang
doaj   +1 more source

Landscape distribution and habitat use of sika deer using indirect signs of deer activity: a simple tool for forest managers

open access: yesWildlife Biology, Volume 2026, Issue 5, September 2026.
The populations of many deer species across Europe are widely reported to be increasing, leading to potentially greater impacts on forest ecosystems. Our understanding of factors driving the regional distribution (e.g. 1 km2 resolution) of deer populations is, however, often limited by a lack of knowledge of where deer are within the landscape.
Simon Harrison   +4 more
wiley   +1 more source

Floor heave mechanism in water-rich soft rock roadways and a DS-IBA control approach

open access: yesGeomatics, Natural Hazards & Risk, 2022
Severe floor heave in underground soft rock roadways heavily affects mine safety and production efficiency. In the present study, the context of the Shanghaimiao mining area is analyzed as the research object.
Wenli Zhai   +5 more
doaj   +1 more source

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