地压的

It is not enough in study of affect of the coal seam rockburst at aspects of monitoring and prevention of rockburst.

在冲击地压的监测与防治研究中，有关煤层冲击地压发生作用和影响的研究尚存在许多不足。

This paper studied the plotting of the hazard zone of Wulong mine's rockburst. This paper used ANSYS program to set up model then put up stress analysis. Taking the 311 working face of Wulong coal mine as an example, the contours of vertical stresses in the roof and floor are obtained corresponding to the mining distances of 100 m ,200 m ,300 m and 400 m respectively.It is indicated that the magnitude of vertical stress is the important influencing factor of rockburst.

用ANSYS建立模型进行应力分析，通过模拟开采3311，3l1，213工作面得到了推采距离为100、200、300及400 m 时的顶底板y向应力等值线图，指出顶板y 向应力大小是判断冲击地压是否发生的重要因素，当开采l00 m 和400 m 时工作面迎头位置产生高应力集中区，极易发生冲击地压事故。

At present, the research on rock burst in non-metal mine fall behind that of coaland metal mine.

目前对冲击地压的研究工作主要集中在煤矿和金属矿山，在非金属矿山中的研究工作相对滞后。

And the influence of moon-sun tide stress on rock burst occurrence are also analyzed.

以及月球-太阳潮应力对发生冲击地压的影响。

The stability of skarn in the soleplate of ore body is bad and the mining ground pressure is serious in Xishimen iron ore mine.

西石门铁矿矿体底板矽卡岩稳定性差，采动地压大，地压问题已成为制约该矿安全生产的关键问题。

The mechanism of energy accumulation and dissipation of rock masses during loading is analyzed to establish the qualitative and quantitative relations between the composition and texture and the burst potential of rock masses of coal-bearing formation.

煤岩体的冲击倾向性是发生冲击地压的固有属性和必要条件，且影响煤岩体冲击倾向性的因素很多；而煤岩体的物质成分、岩性组构是煤岩体的内在属性，是决定煤岩冲击倾向性的内在因素。

The author suggests that, when a drop shaft subsides in normal conditions, not only it bears the earth pressure of the pit but also suffers from the passive soil pressure on the foot blade of the drop shaft.

分析探讨沉井在表土中下沉时所引起的受力现象及其相关的论点，发现沉井在正常下沉过程中，不仅仅会受到竖井表土地压的作用，更主要是沉井的前端受到被动土压力的作

With the increasing of the detritus content of rock masses（from mud shale, siltstone, to fine and medium sand）, the compressive strength and elastic modulus of rock masses increase.

试验研究与理论分析结果表明，随着碎屑颗粒含量的增加，岩石的强度和刚性增强，受载过程中积蓄的弹性应变能增大而耗散的永久变形能减少，发生应变型冲击地压的可能性增加。

With the aid of the method of finite differences, we get the slip line field around a shaft, and analysed the law of the development of shaft-earth-pressure .

并借助有限差分法求解竖井周围的滑移线场，分析了竖井地压的作用与变化规律。

Abutment pressure distribution in coalface plays an important role in stress concentration and elastic deformation energy storage in coal or rock seams,so it will affect greatly the occurrence of rock burst.

工作面支承压力分布对于煤岩体中应力集中和弹性变形能储存起着重要作用，因而会对冲击地压的发生产生重要影响。

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。