对影响溶洞顶板稳定性的各种主要因素进行了深入分析。
The major factors affecting the stability of cave roof under pile in karst region are deeply analyzed.
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.
通过实验室相似模拟试验，对综放面收尾撤架空间的顶板稳定性进行了研究。
In the light of analogue test in laboratory, the stability of roof of fully mechanized working face with top coal caving is studied during withdrawing support at stop line.
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.
在影响地下结构顶板稳定性的诸多因素中，爆破震动的影响也是一个相当重要的因素。
In all the factors that affect the roof stability, blasting vibration is a very important one.
本文结合贵州省盘县红果某地下溶洞实例，探索地下岩溶洞穴顶板稳定性评价的方法。
In combination with the Karst caverns in Hongguo of Guizhou province, this paper is intended to search a good method for estimating the stability of Karst cavern underground.
然后引入强度折减技术，结合数值流形方法提出了公路路基岩溶顶板稳定性的评价方法。
Then, the evaluating method of the stability of karst roof in roadbed had been established by combining with strength reduction technique and numerical manifold method.
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.
基于突变理论的采空区重叠顶板稳定性强度折减法为研究采空区稳定性提供一种新的研究途径。
Strength reduction method based on catastrophe theory provides a new research approach for stability analysis of goafs.
通过对现场观测和数值模拟分析，系统研究了断裂结构面对回采工作面矿压分布和顶板稳定性的影响。
By using field observation and numerical simulation method, the influence of fracture structure plane on the underground pressure and the roof stability of working face are systematically studied.
根据地质构造因素控制煤层顶板稳定性作用的研究，提出煤层顶板稳定性预测评价的矿井地质构造特征解析方法。
Based on the research result of control action of structure to the stability of roof, the author puts out tectonic synthesis method for predicting the stability of roof.
通过对新建建筑物下采空区顶板稳定性计算，评价新建建筑物下采空区顶板稳定的临界厚度，从而确定是否需要处理。
Under the new buildings through the gob roof stability calculation and evaluation of new buildings under the gob roof stable critical thickness could be determined whether to deal with.
文章就顶板稳定性有关的普通顶板、节理化顶板、放顶、顶板加固和人工柱变形破坏等问题，用岩石梁理论进行了分析讨论。
With theory of rock beams, cutting roof, reinforcing roof, manual pillar deformation and failure, and obtains some kinds of knowledge.
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.
阐述了哈拉沟煤矿主采煤层顶板的赋存特征，以现场监测、现场调研为手段，分析了煤层开采、护巷煤柱尺寸及地下水对煤巷顶板稳定性的影响，为今后煤巷顶板稳定性分类及合理支护提供依据。
By taking the on-site monitoring and research as a tool, the influence of coal mining, coal pillar size and underwater on the roof stability of coal roadways is analyzed.
采用离散单元法，分析了当荷载、岩体的摩擦角、锚杆间距、锚杆方向和岩体的性质变化时，顶板的稳定性。
Discrete element method is used to analyze the roof stability in accordance with the variation of its loading, rock frictional Angle, bolt spacing, rock properties and bolt orientation.
若将神东矿区顶板结构的稳定性分析建立在“静态”关系基础上，这与其工程实践有较大出入。
Provided that, roof structure 's stability analysis of ShenDong Mining Field is built on the static relation, there will be much different from the engineer practice.
在空区未充填的情况下回采矿柱，矿柱与采空区顶板的稳定性是一个关键问题。
The stability of the ore pillar and the roof is a key issue in the pillar recovery in unfilled mined-out area.
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.
当桩基作用在岩溶顶板上且岩溶顶板厚度不是足够厚时，需对嵌岩桩桩基的稳定性进行分析与讨论。
When the thickness of Karst roof is not enough, the stability of rock_socketed pile foundation should be analyzed and discussed.
在空区末充填的情况下回采矿柱，矿柱与采空区顶板的稳定性是一个关键问题。
The stability of the ore pillar and the roof is a key issue in the pillar recovery in unfilled mined - out area.
由于胶结充填体作为采场顶板，故胶结体的稳定性研究是矿山生产技术的一项关键工作。
Since the cemented backfill body is to be the top tray, so the research of cemented stability should be the key point of mining production technology.
通过数值模拟，分析了采空区不同采宽、新建建筑物层数以及不同采空区顶板厚度对采空区稳定性的影响。
Through numerical simulation, it has been analysised the various mining gob wide and new buildings and the different layers of the gob roof thickness on stability of mined areas.
由于其稳定性差、维护困难，经常造成工作面顶板冒落，给顶板管理带来了很大困难。
Defend is difficult since its stability is bad, often bring face roof fall, the roof management is very difficult.
巷道围岩是由顶板、底板、两帮组成的复合结构体，回采巷道两帮为软弱煤体，直接影响到底板的稳定性。
The surrounding rock of roadway is a compound structure consisted of roof, floor and sides. The sides of extraction opening are the weak coal mass, which affect the stability of floor directly.
应用弹性系统稳定性理论对断裂顶板-锚拉支架系统建立了动力系统稳定性分析的力学模型。
A mechanical model for the fractured roof and truss system is established based on stability theory for elastic system and analysis of stability of a dynamic system.
通过对刘桥矿区6煤层顶板岩层的岩性和岩性组合结构的分析，确定了不同区域的稳定性情况。
Through analysis of lithologic character and composite structure of roof rock of No. 6 coal layer in Liuqiao Coal Mine, the stability of roof rock in different zones are assessed.
为了验证厦门海底隧道最小顶板厚度比设计厚度减小时隧道的稳定性。
In order to verify the stability and rock cover of Xiamen subsea tunnel which is under design now.
超化矿采用注射马丽散材料加固破碎顶板技术，使帮顶的完整性和稳定性加强，取得了很好的效果。
Chaohua Coal Mine adopts the technology of injecting Malisan material to reinforce broken roof. The method makes the roof more completed and steady and has achieved good results.
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