The landslip above mined-out area is a rock-moving type in underground mining.
采空区上覆山体的滑坡是地下开采过程中又一种岩石移动类型。
The mined-out area due to underground mining is one of the main risk sources of mines.
开采 留下的大量采空区是影响矿山安全生产最主要的危险源之一。
The instability of widespread mined-out area is a typical major hazard sources in mine.
大面积采空区失稳是典型的矿山重大危险源。
Collapse of mined-out area is an environmental geological hazard of the coal mining area.
采空区塌陷属于煤矿区的环境地质灾害问题。
Therefore, the study of widespread mined-out area instability identification is necessary.
因此，对大面积采空区失稳这一矿山重大危险源进行辨识研究十分必要。
The stability of the ore pillar and the roof is a key issue in the pillar recovery in unfilled mined-out area.
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。
Here, the working encountered large mined-out area at one side and free surface of hill slope at the other side.
在这里，工作遇到一面山坡和自由表面在对方大采空区。
The result showed that the mined-out area can not induce impact ground pressure hazard, but partial caving may occur.
结果表明：该采空区不会发生冲击地压灾害，但可能发生局部冒顶。
The fuzzy synthetic assessment method is used to evaluate the danger degrees of mined-out area disasters in this paper.
运用模糊综合评价方法对采空区灾害危险度进行评价。
The key issue for the structures above the old mined-out area is the residual movement amount of the old mined-out area.
老采空区上方建筑的关键因素是老采空区的残余移动量大小。
Then, the design of the detection system in borehole of the mined-out area based on ultrasonic distance measurement was introduced.
然后介绍了基于超声波测距的孔内空区形态探测系统的设计。
The stability of mined-out area was bad before reinforcement, and the distortion value of the groundsill meet demand after grouting.
治理前采空区不稳定，治理后地基变形值满足要求。
The possibility is studied for construction of large-seale steel smelting workshop on the surface of mined-out area in Benxi Coal Mine.
本文研究了在本溪彩屯煤矿巳采区地表兴建大型炼钢车间的可行性。
Maximal exposed area and supporting stress are made sure, moreover, many measures are brought forward to insure stability of mined-out area.
确定了民采空区允许的最大暴露面积和允许承受的地应力，并提出了保证空区稳定的安全技术措施。
The grasp of mined-out area shape and the distribution of solid minerals in mined-out area is the important basic work for mineral management.
准确掌握采空区边界形态，弄清采空区在固体矿产矿床中的分布是矿区管理的基础性工作。
Also, how to determine the safe thickness of the buffer cushion is researched, thus providing a reference for the similar large mined-out area.
同时对缓冲垫层安全厚度的确定进行了研究，为类似矿山大型采空区处理提供了参考依据。
According to geological condition of this mined-out area, a three hole-ins well has designed to carry out surface grouting and fire-area sealing.
根据该采空区地质条件，设计了三开井身结构，对采空区进行地面注浆及封堵处理。
Mined-out area survey as the part of mineral resource exploration played an important rule in recovery of mined-out area and mine safety control.
在固体矿产资源调查过程中，采空区综合信息对于残矿回采、矿山安全具有十分重要的意义。
It is the first time to research into the identification problem of major hazard source concerning widespread mined-out area instability systematacially.
首次对大面积采空区失稳的重大危险源辨识问题进行了系统研究。
The purpose of the study is to provide a reliable inspection method or technique to evaluate the grouting quality of treatment method in a mined-out area.
目的是为评价注浆工程的施工质量，确立可靠的试验方法和技术。
Underground engineering structures losing its stability is possibly induced by cave-in mine tremor, resulting in large cave-in of rocks roof in mined-out area.
冒落矿震可能诱发一定范围内地下工程失稳，导致更大范围内采空区大面积冒落。
The results of numerical analysis on mined-out area indicate that the roof at mined-out areas is unstable and the rock in the roof is easy to collapse in this mine.
数值分析结果表明：夹沟矿采空区的顶板是不稳定的，顶板岩体容易发生垮落事故。
Simulation results show that the settlement is within the building settlement range after mined-out area disposed, and this provides a reference criterion for construction.
模拟结果表明，采空区处理后，沉降量在建筑物允许沉降范围之内，为施工采取相应措施提供了理论依据。
When the mining of gold-bearing deposit of quartz vein type reaches to a certain depth with mined-out area untreated, full attention should be paid to mine's overall stability.
含金石英脉群类型的矿床，当采深达到一定程度而采空区又未进行适当处理时，矿山的整体稳定性应予以充分注意。
Gob projects in Urumqi City, with a direct bearing on the quality of the proposed upper part of the structural safety of buildings, the mined-out area with quality is very important.
采空区处理工程位于乌鲁木齐市市区，处理的质量直接关系到上部拟建建筑物的结构安全，故采空区处理的质量显得十分重要。
The result indicates that the roof stratum supported by pillars in the mined-out area will gradually fail and till collapse by taking into account of the rheological feature of pillars.
研究表明，考虑矿岩流变性的情况，采空区顶板岩层将随时间逐渐破坏直至坍塌。
Therefore, it is necessary to analyze the stability and corresponding disposal measures of mined-out area, thus to provide theoretical guidance for the safety and reproduction of the mine.
因此，有必要对采空区的稳定性及其相应的处理措施进行分析研究，为矿山的安全及再生产提供理论指导。
This paper introduced the current research status of detection technique of the mined-out area at home and abroad nowadays and proposed this topic to solve the problems existing in those techniques.
本文介绍了目前国内外采空区的探测技术的研究现状，针对当前采空区探测技术的不足，提出本课题。
This paper introduced the current research status of detection technique of the mined-out area at home and abroad nowadays and proposed this topic to solve the problems existing in those techniques.
本文介绍了目前国内外采空区的探测技术的研究现状，针对当前采空区探测技术的不足，提出本课题。
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