ground pressure

Study on mine ground pressure and its supervision and control;

矿山地压及其监测和控制研究

Control and simulation of ground pressure evolutional process based on reconstructed mining environment and continuous caving method;

采矿环境再造连续开采地压演化过程的控制与仿真

The ground pressure is a very important influent,especially in these years,has become the key problem needs to be resolved to the Production Safety.

安全生产是矿山企业的重要目标,地压问题是非常重要的影响因素,近几年来尤为突出,成为安全生产需要解决的关键问题。

Large-scale underground pressure variation phenomena occurred many times in Gongchangling underground mine since 1956.

根据弓长岭井下铁矿矿床地质成因及其构造的分布情况,总结中央区深部巷道及采场的各种破坏形式,通过对破坏区域的岩石力学分析,结合该矿自1956年以来发生的多次大型地压活动现象,分析探索弓长岭井下铁矿地压活动规律,优化设计方案,调整回采顺序,通过采取技术措施和各种管理手段,有效地控制地压活动,指导安全生产。

Because of the deep embedding,high underground pressure and fragmentation of ore and rockmass,the Xiaoguanzhuang Iron Mine is one of the most difficult excavation iron mine in China.

鲁中小官庄铁矿由于埋藏深、地压大、矿体倾角比较缓、矿岩破碎,是国内有名的难采矿山之一。

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 (刃脚 )受到被动土压力的作

Based on summing up earth pressure calculating formulas in the deep and thick soils,the properties of earth pressure are presented according to the construction process of freezing engineering.

在对深厚表土中地压计算公式总结的基础上,根据冻结凿井的施工力学行为过程探讨了深厚表土中地压特点;通过深部重塑土的高压K0固结水平加(卸)荷试验,获得了挤压(松弛)应力Ps与水平挤压(松弛)位移δ之间的关系式,并进一步分析了忽略挤压(松弛)应力Ps造成的深土地压及冻结壁厚度的计算误差;对深厚表土的地压应根据冻结凿井施工过程确定,以避免重大工程事故。

On the basis of investigating and analysing the ground pressure activities in deep mining of tungsten mines of Jiangxi, the reasons and effect factors of ground pressure activities are analysed and studied, and the controlling measures are put forward.

在调查、分析江西钨矿山深部开采地压活动情况的基础上,对钨矿山地压活动产生原因和影响因素进行分析研究,提出深部开采地压活动控制措施。

Mechanism and application of deep hole pressure relief blast to control rock burst;

深孔卸压爆破控制冲击地压的机理及应用

Present status and analysis on rock burst prevention and control technology in Poland;

波兰煤矿冲击地压防治技术现状及分析

Mechanism analyses and forecast on deep mining rock burst;

深井冲击地压发生机理分析及预测方法研究

To bear down on harshly;crush.

压，碾使劲地压，压碎

A steamroller is pressing the rising ground.

压路机正将突起的地压平。

The peasants were kept down ruthlessly by the occupying power.

占领国残酷地压迫农民。

The captain had ridden him hard.

艇长曾很厉害地压制他。

A region of low barometric pressure.

低压带气压低的地区

The road roller evens out the ground.

压路机把地面压平。

Preliminary Discussion on Low-voltage Side Single-phase Earthing Protection of Medium-voltage Distribution Transformer

中压配电变压器低压侧单相接地保护浅析

Voltages to ground are limited to the phase voltage.

可限制对地电压到相电压;

Abnormally low blood pressure.

低血压不正常地低的血压

A region of atmospheric pressure that is below normal.

低气压区大气压低于正常值的地区

sub-fracturing pressure

低于地层破裂压力的压力

Firmly press downward to seat seal on flange.

稳固地向下压将座椅密封压入凸缘中。

LOWERING PRESSURE METHOD IN SPACECRAFTS

降压地面模拟技术中的临界压力研究

Research on pressure distribution for full-hydraulic underground coiler machine

全液压地下卷取机卷筒压力分布研究

Effects of deliberate hypotension with nicardipine on intracranial pressure in patients undergoing neurosurgery

尼卡地平控制性降压对颅内压的影响

Peasants used to be subject to the local landowner.

农民过去受地主的压迫.

press or grind with a crunching noise.

发嘎吱嘎吱声地挤或压。

unearthed voltage transformer

不接地型电压互感器