scholarly journals Roadway rock pressure appearance law of roof-cutting and pressure-relieving retaining roadway in medium thick seam

2020 ◽  
Vol 446 ◽  
pp. 052096
Author(s):  
Xiashou Su ◽  
Linming Guo
Keyword(s):  
Rock Pressure ◽  
Thick Seam

Study on the Prediction Method of Tunnel Surrounding Rock Pressure Based on the Theory of Progressive Destruction

2012 ◽  
Vol 446-449 ◽  
pp. 1432-1436
Author(s):  
Suo Wang
Keyword(s):  
Rock Pressure ◽  
Characteristic Curve ◽  
Prediction Method ◽  
Surrounding Rock ◽  
Progressive Damage ◽  
Tunnel Excavation ◽  
Practical Engineering ◽  
Surrounding Rock Pressure ◽  
The Relationship ◽  
Rock Parameters

In order to predict tunnel surrounding rock pressure, this paper puts forward a series of dynamic numerical simulative model on the tunnel excavation. According to the change of rock damage in the construction program, it adjusts dynamically the mechanical material parameters of surrounding rock. So the model achieves the purpose which is controlling and simulating the process of tunnel progressive damage. In accordance with the numerical simulative results, it analyzes the relationship between the rock parameters with the plastic strain, radial displacement. Then this paper proposes a prediction method of tunnel surrounding rock pressure based on the theory of the progressive damage and method of characteristic curve. Finally, it compares the pressure on the numerical simulative models with on the site date, and it proves that the prediction method has practical engineering value.

A sand-urea material for model-making in rock pressure research

1974 ◽  
Vol 10 (2) ◽  
pp. 145-148
Author(s):  
M. S. Zlotnikov
Keyword(s):  
Rock Pressure

On the Mechanisms of the Formation of Zones with Abnormally High Rock Pressure and Methods for Predicting them in Undeveloped Rock Systems

2018 ◽  
Author(s):  
Azamat Islamov ◽  
Dmitriy Kolupaev ◽  
Ruslan Faskhutdinov ◽  
Sergei Vereschagin
Keyword(s):  
Rock Pressure

scholarly journals Characteristics of Strata Behavior during Thick Seam Mining by Fully-Mechanized Top Coal Caving in a Loess-Covered Gullied Region

Minerals ◽  
2017 ◽  
Vol 7 (4) ◽  
pp. 63 ◽  
Author(s):  
Xu-feng Wang ◽  
Yang Wang ◽  
Dong-sheng Zhang ◽  
Hong-zhi Wang ◽  
Yang Zhang ◽  
...  
Keyword(s):  
Thick Seam ◽  
Strata Behavior ◽  
Seam Mining

Study on Calculation of Rock Pressure and Determination of Depth for Shallow Asymmetric Tunnel

2011 ◽  
Vol 261-263 ◽  
pp. 1034-1038 ◽  
Author(s):  
Xiao Jun Zhou
Keyword(s):  
Rock Pressure ◽  
Calculation Method ◽  
Tunnel Structure ◽  
The Way

The method to calculate rock pressure for shallow asymmetric tunnel is analyzed by means of taking a mountainous tunnel with semicircular crown and straight sidewall as the object in this paper. The calculation method of tunnel rock pressure has been presented with consideration of both tunnel structure size and its overburden depth. Finally the way to determine the shallow or profound depth of asymmetric tunnel is also obtained.

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