chamber charge

Controlled chamber standing shot technology in dock work for ores in Dalian harbor;

大连港矿石码头洞室法松动控制爆破施工技术

Organization of large-scale chamber blasting is described in the case of Luoguogou, It is emphatically stated that the following points should be noted during technical desing:(1)spacing of charge roons and deter- mination of blasting parameters;(2)design of initiation network;(3) construction plan;(4) safety check and safety precautions.

以罗锅沟大爆破为例，介绍了洞室大爆破的施工组织，并着重问述了在进行技术设计时，应注意以下几点：（１）药室的布置及爆破参数的确定；（２）起爆网路的设计；（３）施工设计；（４）安全校核及安全措施。

The formula for redistributing stress around the chamber is obtained on the principle of loaded cylinder pores and the stress pile-up in elastic media.

文章根据弹性力学内部加载圆孔及应力叠加原理，推导了在软土地层开挖浅埋圆形洞室周围应力重分布公式，并根据Kirsch公式计算了5％及10％影响带范围。

Research on anchored effect of fully cement-imbedded anchor cable on weak country rock cavern;

全长黏结式锚索对软岩洞室的加固效应研究

Study on Model Test and Numerical Modeling of Anti-explosion Effect of Underground Cavern Reinforcement with Prestressed Anchor;

预应力锚索对地下洞室抗爆加固效应模型试验与数值模拟研究

The pressure of salt cavern storage changes in a high–low-high cycle within a particular range,the stress in salt rock around cavern varies because of the upside strata and cavern inner pressure.

盐岩类地下储库在运行过程中盐岩洞室内部压力从高到低、从低到高的循环变化,因此洞室周围的盐层会受到周围地层的压力和洞室内部压力的多重作用而产生应力变化,由于盐层在高压作用会产生塑性形变,而且,洞室内部的压力始终小于周围地层的压力,因此洞室周围盐层会产生指向洞室内部的位移而导致洞室收缩形变。

Scattering of plane P waves around a cavity in poroelastic half-space(II):numerical results;

平面P波在饱和半空间中洞室周围的散射(II):数值结果

Scattering of plane P waves around a cavity in poroelastic half-space (I): analytical solution;

平面P波在饱和半空间中洞室周围的散射(I):解析解

Scattering of plane SV waves by a cavity in a layered half-space;

层状半空间中洞室对入射平面SV波的散射

Application of ordinary digital cameras in tunnel logging;

普通数码相机在洞室地质编录中的应用

The tunnel rock quality and its influential factors are very complicated and uncertain.

由于洞室围岩质量及其影响因素的复杂性和不确定性,以往采用定指标、定权重的评价方法不尽合理,因此,有必要建立一多因素模糊评价模型。

During the excavation of large underground tunnels,the construction equipment dominant the construction procedure and excavation methods.

在钻爆法开挖大型地下洞室的过程中,施工机械的配置情况在一定程度上决定了地下洞室的施工程序和开挖方法。

Analysis of the instability criteria of the surrounding rock of underground cavern;

简述地下洞室围岩失稳的判据分析

Development and application of rock-mass mechanical parameters back analysis software system for underground cavern;

地下洞室岩体力学参数反演软件系统开发与应用

Study on monitoring and prediction information system for underground cavern construction;

地下洞室施工监测预报信息系统研究

Effect of elastic modules random field of surrounding rocks on reliability calculation of underground chamber;

弹模随机场对地下洞室可靠度计算结果的影响

The underground chamber is the important factor damaging the stability of the open-pit mine slope.

地下洞室是危害露天矿边坡稳定性的重要因素 ,其分布情况更是评价露天矿边坡稳定性的重要条件。

The blasting vibration of an underground chamber is observed,analyzed and processed.

通过对某水电站地下洞室爆破振动进行观测、分析和处理,得到了爆破地震波传播衰减经验公式。

Numerical stress simulation on surrounding rockmass of underground excavation in low ground stress regions;

低地应力区地下洞室开挖后围岩应力数值模拟

Finite element simulation of tensile stress of roof surrounding rockmass of underground excavation in the low ground stress regions;

低地应力区地下洞室拱顶围岩拉应力有限元数值模拟研究

Discussion on calculating method and application of surrounding rockmass pressure of underground excavation in the low ground stress region;

低地应力区地下洞室围岩压力计算方法及应用