通过对顶板安全仪器仪表检测合格率低的要因分析，制定出相应的对策，使煤矿顶板安全仪器仪表检测合格率明显提高。
Through the analysis on main factors that cause low qualification rate at the roof safety meters, corresponding counter measure has been made, resulting in obvious increase at qualification rate.
顶板离层是锚杆支护巷道最大的安全隐患之一。
The roof abscission layer is the biggest security hidden danger in bolting support tunnel.
在该部位顶板模板施工中成功应用了碗扣式钢管脚手架支撑体系，整个施工过程中未出现任何安全及质量事故。
Cuplock scaffold bracing system was successfully used in those locations, and no any safety or quality accident took place in the whole process of construction.
应用表明，采场顶板长锚索预锚固技术施工安全，成本低，支护效果好，值得推广应用。
The application of this technique shows that it is well worth developing because of its safe construction, low cost and good supporting effects.
由此可见，工作面来压期间加强顶板监控对煤矿安全生产具有重要的现实意义。
Thus it can been seen that enhancing the top monitoring during the period of the pressure change of working face has important practical meaning to security in coal mine.
详细介绍了采用埋管注浆方法充填加固冒落段巷道顶板及围岩，使之胶结成为整体，从而安全顺利地通过该冒落带的施工技术。
Describes the methods of reinforcing roof of the plank and surrounding rock by using pipe-burying filling, to mak them as a whole, so as to go-through the caving zone safely and smoothly.
液压支架不仅支撑顶板，推动刮板输送机工作面和自移式支架本身，而且还为相关的采煤设备提供一个安全的工作环境（略）。
The supports not only holds up the roof, pushes the face chain conveyor, and advances itself, but also provides a safe environment for all associated mining activities.
煤层顶板的稳定性是影响煤层回采工作安全最重要因素之一。
The stability of seam roof is one of the most important factors that influences the safety of coal extraction.
煤层顶板的稳定性是影响煤层回采工作安全最重要因素之一。
The stability of seam roof is one of the most important case that influences the safety of coal extraction.
定义溶洞顶板稳定性安全系数为顶板岩体实际剪切强度与折减到临界破坏时的剪切强度之比值。
The safety factor of karst cave roof is defined as the ratio of actual shear strength parameter to critical failure shear strength parameter in this paper.
顶板离层是锚杆支护巷道最大的安全隐患之一。
The roof separation layer is the biggest security hidden danger in bolt support tunnel.
根据岩石力学理论和三维数值模拟计算，结合我国一些金属矿工程实例研究，提出了地下采空区顶板稳定性的综合安全评判方法。
Based on rock mechanics theory and 3d numerical modeling, a synthetical safety evaluation for the roof stability has been put forward and verified by the case study.
采煤工作面顶板状况直接关系煤矿的安全生产和经济效益。
The roof of the coal mining works face is connected with safety production and economic benefits directly.
微地震监测技术对确定采场覆岩“两带”高度、预报采场顶板破坏、预测煤与瓦斯突出，从而预防灾害发生、保证煤矿安全生产并提高资源回采率等具有重要意义。
Microseismic monitoring technique is of important meaning for the safety of coal mine, the prediction of the period of mining pressure and the increase of recovery rate.
顶板离层是锚杆支护巷道最大的安全隐患之一。
The roof abscission layer is the biggest security risk in bolting support tunnel.
优化采场顶板暴露面积形状是控制地压的重要手段之一，采用长条形顶板暴露面，能提高采场生产能力和保证回采的安全性。
The roof shape optimization is one of the important means to control the ground pressure. A long strip of exposed roof surface shape can improve productivity of the stope and ensure mining safety.
烧变岩是活鸡兔矿井的顶板充水含水层，直接威胁着矿井的生产安全。
The coal seam roof of Huojitu mine is the burnt rock, which is the water impregnated aquifer, is dangerous to mine safety.
锚杆支护巷道顶板冒落具有突发性和冒落面积大的特点，安全监测非常必要。
Roof falling of rock bolting supported tunnel is usually paroxysmal in a big area, so safety monitoring is of great importance.
本文分析了顶板冒落的原因，提出了顶板管理方法，如调整落矿工艺，顶板锚网支护和冒顶预测预报，结果保证了采矿的安全。
This paper analysed the cause of falling roof, raised some methods of roof management, such as adjusting mineral blast, bolt support and prediction of roof caving. It ensured safety in mining.
搞好矿井地质工作，是实现煤矿安全生产的基本保障，对预防水、火、瓦斯、顶板等主要灾害有着极为重要的意义。
Making pit geology work well is the basic security of realizing coal mine safety. It's very important to prevent from main calamities such as water fire gas and roof.
从顶板管理、顶板压力计算、安全系数校核方面进行了介绍，并且在大倾角工作面三防措施管理方面进行了详细的阐述。
The roof management, roof pressure computing, assurance coefficient checking are introduced. Three kinds of protecting methods of working face management are expounded.
VCR法免除了人员在顶板下作业，大大提高了采矿的安全性。
VCR mining method significantly improves the mining safety as no person is required to operate directly under the unsupported roof.
因此，基桩下溶洞顶板稳定性成为控制桥基安全的关键地质问题。
Because of the influence of cavern and cranny underground, the pile foundation of the bridge could not be constructed normally.
建立基于突变理论的采空区重叠顶板稳定性强度折减法，研究重叠顶板的安全储备。
Strength reduction method which is used to study stability of goaf overlapping roof based on catastrophe theory is established.
采用有限单元数值模拟法研究了基础与洞室相互作用下的破坏机制 ，以及各影响因素对浅埋地下洞室安全顶板厚度的影响及相关变化规律。
The failure mechanism of interaction process between the foundation and cavity and, the effect of every factor on safe thickness of top plate are studied by FEM simulation.
主要阐述了在极破碎顶板条件下，应用锚网锚索联合支护的巷道围岩地质状况、支护方案、施工组织、安全措施及经济效果。
The technology of combination of bolting wire mesh and cable anchor has been proved to be workable in permanent roadways, based on analysis of date collected from observations of roadway.
主要阐述了在极破碎顶板条件下，应用锚网锚索联合支护的巷道围岩地质状况、支护方案、施工组织、安全措施及经济效果。
The technology of combination of bolting wire mesh and cable anchor has been proved to be workable in permanent roadways, based on analysis of date collected from observations of roadway.
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