Results 101 to 110 of about 26,903 (228)

Design of Initial Mining Pressure Relief Scheme for Large‐Size Mining Face: A Case Study

open access: yesEngineering Reports, Volume 8, Issue 4, April 2026.
The numerical simulation analysis method is used to compare the actual mining face (315 m) with the designed mining face (200 m). The results show that the large mining height working face has larger abutment pressure peak and stress concentration factor than the general mining height working face.
Qinghu Wei   +3 more
wiley   +1 more source

Analysis of Stress State of Bolts Under Different Anchorage Qualities [PDF]

open access: yes, 2018
A series of pull-out tests were conducted in order to study the stress states of bolts under different anchorage qualities and to simulate the influence of quality defects in empty-slurry and low-strength mortar anchorage in actual engineering. The tests
Sun, B. (Bing)   +3 more
core   +2 more sources

Research on large deformation mechanism of deep roadway with dynamic pressure

open access: yesEnergy Science & Engineering, 2020
In this paper, the large deformation mechanism of deep dynamic pressure roadway is studied from the perspective of the formation and development of plastic zone, and creep and damage of rock mass.
Lei Fan   +3 more
doaj   +1 more source

Significance Testing of Site 41KM225, Kimble County, Texas [PDF]

open access: yes, 2007
SWCA Environmental Consultants (SWCA) conducted significance testing excavations at site 41KM225, ᆳᆳᆳᆳᆳᆳᆳᆳᆳᆳᆳᆳᆳᆳᆳᆳᆳᆳᆳtion of the site is in TxDOT’s right-of-way (ROW) of Farm-to-Market (FM) 2169 on the northern bank of Johnson Fork, a tributary of the ...
Acuna, Laura   +2 more
core   +3 more sources

Research on the Stability of Inter-Roadway Surrounding Rock in Spatially Intersected Roadways Under Dynamic Loading

open access: yesApplied Sciences
Spatially intersecting roadways in mines are prone to stress concentration due to disturbances during mining operations, which significantly affects the stability of the inter-roadway surrounding rock between the roadways. Analyzing the stability of underlying roadways under the influence of disturbances from overlying roadways, as well as enhancing ...
Pei Zhang   +4 more
openaire   +1 more source

An enhanced classification of artificial ground [PDF]

open access: yes, 2010
This report describes a detailed scheme for the mapping and recording of artificial ground. It presents codes and descriptions that underpin the entries in the British Geological Survey stratigraphical ...
Cooper, A.H.   +4 more
core  

Anchoring of development workings in a zone of influence of mining in case of the level anchoring system [PDF]

open access: yes, 2017
Regularities of the change of the stress-strain state of coal containing rock masses, depending on mining-geological factors, were revealed. These factors allow establishing rational parameters of anchoring of wall rocks to enhance the stability of ...
Demin, V. F.   +3 more
core   +1 more source

Geodiversity audit of Spireslack and Mainshill Wood surface coal mines [PDF]

open access: yes, 2015
This report describes a geodiversity audit of the Spireslack and Mainshill Wood surface coal mines (SCM) carried out by the British Geological Survey (BGS) on behalf of the Scottish Mines Restoration Trust (SMRT).
Callaghan, E., Ellen, R.
core  

Westwood Multimodal Transportation Plan [PDF]

open access: yes, 2020
Westwood is experiencing an industrial regeneration that will change the way the area is utilized by the surrounding communities. To be proactive, Henrico County is planning for the future by creating an overlay zoning district and striving for a ...
Austin, Ashley N
core   +1 more source

Intensive Cultural Resources Survey of the Proposed Wurzbach Parkway Extension Project from Blanco Road to Wetmore Road, Bexar County, Texas [PDF]

open access: yes, 2010
SWCA Environmental Consultants (SWCA) conducted an intensive cultural resources survey on behalf of the Texas Department of Transportation (TxDOT), of the proposed Wurzbach Parkway Extension Project in San Antonio, Texas.
Galindo, Mary Jo, Miller, Kevin A.
core   +2 more sources

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