roof strata

用法例句

Dynamic events in roof strata-occurrence and prevention;

顶板岩层动力事件发生机理与防治方法

Instability behavior for roof strata in shallow seam longwall mining;

浅埋煤层长壁开采顶板岩层的不稳定性态

The instability of the gob roof will cause slow or catastrophic damage to the cover rock in strip mining, the instability and failure mechanism of the gob roof strata can be studied by catastrophic theory.

采空区顶板的失稳会导致条带开采覆岩系统缓慢或突变性的破坏,采用突变理论可以揭示采空区顶板岩层破坏失稳机理。

The effects of roof stratum\'s physical properties,geometry parameters and movement states on rock burst danger were analyzed by numerical simulation with UDEC4.

0对煤层上覆顶板岩层的物理、几何属性及运动状态对煤体冲击矿压危险性的影响规律进行了模拟研究。

Aiming at the influence effects of roof stratum on rock burst,the research methods of physical simulation experiment in laboratory,UDEC 4.

针对顶板岩层对煤体冲击的影响作用机理,采用实验室物理模拟试验、UDEC 4。

Detector of Coal Seam Roof Strata Based on S3C44B0X Framework

基于S3C44B0X构架下的煤层顶板岩层探测器

Analysis of strata dynamic crack characteristics upon fractured roof based on optical peephole

基于光学窥视的破碎顶板岩层动态破裂特征

Numerical Simulation of Roof Stratum Effect on Coal Mass Burst

顶板岩层特性对煤体冲击影响的数值模拟

Study of the Burst-Energy Principle of Rock Burst Induced by Roof Stratum and Its Application

顶板岩层诱发冲击的冲能原理及其应用研究

The selecting type of the support and roof control in soft rock coal seam floor

软岩底板煤层支架选型及顶板控制研究

Study on Failure Law and Support Technique of Stratified and Weak Rock Roof of Roadway;

煤巷层状软岩顶板破坏规律及支护研究

Study on the Surrounding Rock Stability and Safety Control of Roadways Roof Embedded Weak Intercalated Seam;

软弱夹层顶板巷道围岩稳定与安全控制研究

Application of high density resistivity method to determination of aquifer thickness in top rock

应用高密度电阻率法探测顶板基岩含水层厚度

ANALYSIS FOR WATER-INRUSH MECHANISM OF ROOF'S KARST WATER FOR INFLUENCE OF FAULT ACTIVATION

断层活化引发顶板岩溶水突水机理分析

Technology of Safety and High Efficiency Mining Face under Extremely Hard and Thick Igneous Roof

特硬厚层火成岩顶板工作面安全高效开采技术

Direct roof strong karst aquifer water tunnel boring technology to combat

直接顶板为强岩溶含水层巷道掘进防治水技术

Study on Complex Active Support System of Seam Gateway with Thick Carbonaceous Mudstone Roof

厚层炭质泥岩顶板煤巷复合主动支护系统研究

Mechanics characteristics of coal and its roof and floor rock and the effects of hydraulic fracturing on coal reservoir

煤岩与顶底板岩石力学性质及对煤储层压裂的影响

The top surface in an enclosed space of a ship.

顶板密闭的船舱的顶层

Study on Laws of Surrounding Rock Stress Distribution and Roof-off-strata of the Gate Bolting Support;

煤巷锚杆支护围岩应力分布及顶板离层规律的研究

Characteristics of sandstone water in 11-2 roof and floor of Liuzhuang colliery and prevention and control technology

刘庄煤矿11-2煤层顶、底板砂岩水特征与防治技术

Impact of Sliding Structure on Ⅱ 1 Coal Roof Engineering Geological Zonality in Songshan Minefield

嵩山井田滑动构造对二_1煤层顶板岩体分带性的影响

Malisan Resin Reinforce Roof Technology Being Used in Development in Soft Rocks

马丽散树脂加固顶板技术在松软岩层掘进中的应用