充填采空区

In the angle of safety, economy and persistent development, how to choose the filling material to fill the goaf is presented.

从安全，经济和可持续发展的角度阐述了矿山采空区充填材料的选取原则。

Firstly, the stope vacancy was monitored using CMS, taking cavity measured data as foundation, cavity three-dimensional model of the stope opening was created using Surpac software and gain the stope three-dimensional configuration and the actual boundary accurately. Then, the stope designed model and ore-rock interface digital terrain model were established according to the stope design material. Finally, using ore-rock interface DTM to cut cavity model or through Boolean calculation among the models, ore remains, mining total volume, mullock, backfilling, pure ore and dilution rate of stope N3-4 were calculated accurately, thus the large-scale stope mining index visible calculation was realized effectively.

采用CMS探测三维采场空区，以空区实测数据为基础运用Surpac构建采空区三维可视化模型，获取采场空区的三维形态和实际边界；运用采场设计资料，建立采场回采设计模型及矿岩边界模型，通过模型间的布尔运算，计算出采场存留矿量、回采总体积、采下废石量、采下充填体量、采下纯矿石量、回采总量及回采贫化率等，从而有效地实现了大规模采场回采指标的可视化计算。

The influence of ventilation quantity, ventilation pressure, air leak strips and stowing strips on spontaneous combustion in goaf is discussed, so validity of the above theories is confirmed, and the effect is perfect.

论述了风量、风压、漏风带、充填带、对采空区自然发火的影响，形象地验证了上述理论的正确性，取得了较好的效果。

Aiming at paste backfilling of underground Open-stope,this paper put up systematic and deep research to theory and technology.

本文针对地下采空区膏体充填理论与技术进行了系统、深入的研究，主要内容和结论如下：(1)从膏体料浆的重量浓度、屈服应力、流变曲线、可泵性等多方面揭示了膏体的特性。

It shows that the particle vibration velocity is related to the maximum single sound charge,distance from the blasting point uo the measured point,types of explosive and blocking condition.While transforming opencast mining into underground mining,if a goave is filled up with gangues,the surface rock mass of slope ca...

在露天转地下开采时，如果对采空区充填废石，不仅可以使边坡表面岩体处于有利的三向受力状态，回填废石体还起到了爆破减震作用，同时还有明显的高频滤波作用，有利于保持地下巷道的稳定性。

Post-mining or gob preventive injection, sand-filling or sealed separation in the gob with potential spontaneous fire, Visional judgement or index jndgement for prediction, nitrogene-injection for fire prevention, and control, spraying oxidation retardent to delay coal oxidati...

同时提出某些预防煤田自燃发火的对策——采后或采空区预防性注浆；对可能产生自燃火灾的采空区注砂或充填，加以封闭隔离；采用直观判断、指标判断等方法进行预测预报：注氮防灭火；喷涂阻化剂以延缓煤氧化；选择合理的开拓方式和回采方法：选择合理的通风系统和利于防火的通风方式；控制向采空区的漏风等。

The process of balance is on thealternation of arch and beam、 explores the space-time law of separatedstrata"s occurrence、 development and distribution and this paper damasks theoverlying rock as injecting zone and no-injecting zone from the aspect of controllingoverlying rock.2.The separated strata is over fracture zone and under integral crook zone inwhere the rock formation"s moving is of monolayer or of many layers more oftenthan not, and the thickness of strata is very small while comparing with integralcrook zone.

通过物理模拟及数值仿真模拟的实验研究，分析了采动覆岩的移动与破坏过程，提出了采空区上方覆岩的平衡形式是以拱和梁交替作用来实现平衡→失稳→再平衡的力学过程观点，并详细研究了覆岩中离层产生、发展与分布的时空规律，进而从覆岩控制角度划分了可充填离层带与不可充填离层带，为实际应用奠定基础； 2。

combining with a actual example, interrelated technology of grouting on fragmentized goal groundwork had been researched and actualized.

摘 要：结合某工程实例，对老采空区破碎地基注浆的相关技术进行了研究和实施。确定了老采空区地基充填注浆的范围。

By evaluating the stability parameters such as the upper wall thickness,solidness and the strength of the mine props,etc,dangerous area of the goafs are predicted. Practical and economic protection measures are proposed ...

针对采空区的顶板厚度、稳固性、矿柱强度等稳定性参数，预测了采空区危险地段，建议对采空区采取监测、封闭、排水、充填、联合支护等既安全又经济可行的防治措施。

Because the direct roof of the No.92 ore-body is the backfilling of the No.91orebody which is the cementing materials or non-cementing materials, and there are no-filled mined-areas in someplace. So there are large-scale hidden troubles on the top of the No.92 slowly inclined large and thick ore-body, then we must find a new mining technology which aims at the complex mining condition of the No.92 ore-body. The cutting nature of the No.92 ore-body is very poor, so choosing the rational drilling and blasting parameters and enhancing the overall technological economic benefits are also the urgent problems waiting to be solved in the exploitation of the No.92 ore-body. The No.92 ore-body, thin lodes and the exploitation process of the No.91orebody influence each other, the geo-pressure phenomena aggravates obviously in case of the mined-areas increase constantly, and the geo-pressure problem will be more and more serious when the No.92 ore-body be exploited on a large scale in the next step.

由于它的直接顶板就是开采91号矿体时的胶结或者非胶结的空区充填体，部分地段甚至是未充填的采空区，使92号缓倾斜厚大矿体的上部形成大范围的隐患区，因此，必须针对92号矿体复杂的开采技术条件，寻找新的采矿技术与工艺。92号矿体的可凿性极差，选择合理的凿岩爆破参数，提高凿岩爆破工作的总体技术经济效益，也是92号矿体开采急待解决的问题。92号矿体与细脉带、91号矿体开采相互影响，目前在采空区不断增大的情况下地压显现有明显加剧的趋势，在下一步92号矿体大规模开采时，地压问题将越来越严重。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。