roof stability的例句大全

Research on the tectonic synthesis method of prediction roof stability and its application

煤层顶板稳定性预测构造解析法研究与应用

Influence of Geological Conditions on Roof Stability at Coal Face

地质条件对回采工作面顶板稳定性的影响

The Litho logy and combination of coal roof are determined by the changes of sedimentary environment. Different sedimentary environment have different coal seam roof stability.

煤层顶板的岩性及组合是由沉积环境变化所决定的，沉积环境不同会造成煤层顶板稳定性的明显差异。

Study on relationship between roof stability and top coal's recovery ratio

顶板结构稳定性与顶煤放出率关系探讨

An analysis of the geomechanical factors influencing coal mine roof stability in Appalachia

影响阿巴拉契亚煤矿顶板稳定性的地质力学因素分析

From the control angle of roof stability in face area, UDEC program has been used in analysis of the relationship between the roof stability in face area, the working resistance of support and the distance to face under different top coal conditions.

从端面顶板稳定性控制角度出发，应用数值模拟离散元法分析了不同顶煤条件下端面顶板稳定性与支架工作阻力及端面距的关系。

Roof stability is influenced by the multi-factor.

溶洞顶板稳定与否是多方面因素综合影响的结果.

Pre-tensioned bolts support is an effective way to improve joint roof stability.

预应力锚杆支护,是提高煤巷节理顶板稳定性的有效方法.

Study on seismic stability of grottos with gable roof under vertical seismic loads

竖向地震荷载下人字批顶结构石窟的稳定性分析

Stability Analysis for Tunnel Roof Based on Nonlinear Failure Criterion

基于非线性破坏准则的隧道顶板稳定性分析

Research on roof beam stability of large span gabled frames

大跨度门式刚架屋面梁平面外稳定的研究

Analyses the migration mechanism of overlying formation of fore-and-aft mining, and the stability influence of roof-floor rock, gains the stress distribution of plastically deforming area form the elasto-plastic stability of coal pillar.

分析了采动影响前后巷道上覆岩层运动、掘巷前后巷道顶底板的岩层及煤柱稳定性；由煤柱的弹塑性稳定性分析中，得出煤柱塑性区应力分布；

Roof Panel Composed of Straw Boards and Shaving Boards with Reinforcement Strength and Stability Analysis and Structural Design for Multi-stiffened Plates

加筋复合稻草板屋面板密加筋板结构强度和稳定性的力学性能分析与结构设计

With the two great roof-fall accident of Pingyi gypsum mine, this paper analyzes the stability of pillars and roof system and the mechanism of destruction of pillars and roof.

本文以平邑石膏矿两次大的冒顶事故为资料背景，分析了矿柱、顶板系统的破坏机理。

On the premise of the stability of roof and top coal, the displacement regularity of surrounding rock must be rationally used to determine the reasonable filling pattern and filling strength in order to ensure the filling stability and a good result of retaining roadway.

当采用综放沿空留巷时，在保证顶煤及顶板稳定前提下，合理利用围岩移动规律，确定合理充填方式和充填体强度，就能保证充填体稳定，达到很好的留巷效果。

Arched-corrugated metal roof ( ACMR) belongs to cold-bending thin wall steel structure, of which the stability is a key factor influencing its bearing capacity.

金属拱型波纹屋顶结构属于冷弯薄壁构件，稳定问题是影响其承载能力的关键因素。

Stability analysis of local thinned shallow spherical roof of storage tank

局部减薄储罐拱顶非线性稳定性分析

controlled stability of rock bolting roadways based on roof abscission layer monitor

基于顶板离层监测的锚固巷道稳定性控制

based on energy conservation principle, mechanical models of immediate roof in different stage have been established, the stability criterion of immediate roof has been derived.

基于能量守恒原理，建立了二次沿空留巷不同阶段直接顶的力学模型，推导出沿空留巷直接顶的稳定性判据。

stability monitoring of immediate roof in fully-mechanized top-coal caving face with high output and high efficiency

高产高效综放工作面直接顶稳定性监测