abutment pressure

Experimental research of earth pressure behind bridge abutment

桥台台背土压力的试验研究

Overlength isolated working face reduces the superposed influence of abutment pressure on isolated working face.

超长孤岛工作面减小孤岛工作面侧向支承压力的迭加影响.

a new algorithm for calculating the distribution of face abutment pressure

一种计算采场支承压力分布的新算法

The deformation of surrounding rock appears mainly in abutment pressure influence zone. Reasonable roadway supporting should control the deformation of surrounding rock in intense stage of mining influence. Supporting design ideas of tailentry and head entry should be changed from the loading control to the deformation control.

围岩变形主要发生支承压力影响区，合理的巷道支护应能控制采动影响剧烈阶段的围岩变形，顺槽支护设计理念应从载荷控制向变形控制转变。

analysis of the relationship between abutment pressure distribution and floor heave of gateway

支承压力与回采巷道底鼓关系分析

distributing discipline of abutment pressure behind working face

工作面滞后支承压力分布规律

it is also concluded that the abutment pressure distribution is affected by the roof stiffness, coal strength and buried depth.

定性研究了顶板刚度、煤体强度和理深对超前支承压力分布的影响。

numerical simulation study on the distribution of abutment pressure in fully-mechanized caving face

综放面侧向支承压力分布规律模拟研究

It designed program proposed to layout face and roadway, and selected the distance about 50m-100m. It speed up the face forward to try to reduce the pressure on the abutment time to retain the role of the roadway.

提出工作面与巷道合理布局，选取错距为50m-100m，加快工作面推进，尽量缩短侧向支承压力对保留巷道的作用时间。

the result shows that there are two stress peaks in the abutment pressure and its magnitude and location are affected by the mining.

得出了超前支承压力存在两个峰值，其峰值大小、位置受煤层采动影响的变化规律。

overlength isolated working face reduces the superposed influence of two sides abutment pressure on isolated working face.

超长孤岛工作面减小孤岛工作面侧向支承压力的叠加影响。

abutment pressure distribution law of fully-mechanized face in soft, thick coal seam

极软厚煤层综采面超前支撑压力的分布规律

the top-coal in the front of the wall appears the failure area in the effect of the abutment pressure that spreads over the coal seam.

煤壁前方顶煤在支承压力作用下产生破坏区，遍布整个煤层；

the movement of site cover rock and the change of abutment pressure round the site are the main reasons that lead to roof accidents.

采场覆岩的运动及采场周围支承压力分布的变化是导致采场顶板事故的最主要原因。

the deformation of mining roadway which caused by the mining is produced mainly by the abutment pressure.

在回采引起的巷道变形中，回采引起的支承压力是主要因素。

numerical simulation analysis and study on the abutment pressure distribution laws at the fully mechanized caving face

综放采场围岩压力分布规律数值模拟研究

application of research on distributing discipline of abutment pressure at combined mining among short distance coal seams

滞后支承压力研究在近距离煤层联合开采中的应用

mechanical solution of the maximum point of dynamic abutment pressure under deep long-wall working face

深部长壁工作面动态支承压力极值点的求解

relation between abutment pressure and relieved gas delivery for fully-mechanized top coal caving

综放开采支承压力与卸压瓦斯运移关系研究

formation and application of the front abutment pressure on longwall face

论采场前方支承压力的形成及应用

similar simulation study on abutment pressure distribution at close-distance seams

近距离煤层开采侧向支承压力分布的相似模拟试验研究

numerical simulation of abutment pressure distribution laws of working faces

采场支承压力分布规律的数值模拟研究

surrounding rock abutment pressure distribution and thickness effect of dynamic catastrophic in fully mechanized sublevel mining stope

综放采场围岩支承压力分布及动力灾害的层厚效应