The results show that mighty compound cutting can give a good effect of sinking and blasting in hard rock shaft, and sinking velocity adopted for 2.
试验表明：强力复合掏槽在特硬岩立井掘进爆破中应用效果良好；2。
Based on the demand of present code, using the calculation of bearing capacity of pile shaft and subgrade bearing capacity for pile, vertical experimental load of embedded rock pile is ensured.
采用现行规范规定的对桩身承载力和地基土对桩的支承阻力两项的计算，确定嵌岩桩竖向抗压静载试验的试验荷载。
A detailed description of the principle and application of cement injection technology to shaft rock wall are given.
就一个注浆施工实例，详细阐述了料石井壁壁后注浆技术的原理和应用。
This paper presents the transformation situation of the hoist system for service shaft and the successful experience of driving hoist room in the break and unstable rock mass near to surface.
本文介绍了金厂峪金矿副并提升系统改造概况和在破碎不稳固的近地表岩体中开挖卷扬机硐室获得成功的经验。
Developing the experimental study of artificial freeze rock, and discussion about physical and mechanics characteristic of freezing rock, have the important guiding sense to the shaft freeze design.
开展人工冻结岩石的试验研究，探讨冻结岩石的相关物理力学特性对井筒冻结设计具有重要的指导意义。
Based on this, the explosive type that matched the ore rock conditions was determined and the basis for selecting the related parameters of the test of shaft excavation by one blasting was obtained.
据此确定了与矿岩条件相匹配的炸药类型，得到了试验地段一次爆破成井试验的相关参数选取依据。
Xuehu coal main and subsidiary well have deep shaft, thick surface soil and strong disability, poor pourability in the hydrated grope rock and complex geology condition.
薛湖煤矿主、副井井筒井深、表土厚且膨胀性强、基岩含水层可注性差、地质条件复杂。
An exact solution of pressure and displacement of a mine shaft situated in viscoelastic rock is obtained using the correspondence principle of the linear viscoelasticity theory.
本文利用线性粘弹性的对应原理得出了关于粘弹性岩石中井筒的井壁压力及位移的理论解。
The research result is not only used to the stability analyzes of shaft in mine, but also used as the reference of the optimization design of shaft construction in rock part of deep shaft.
所得结果不仅可用于煤矿立井井壁稳定性分析，对深立井井壁结构的优化设计同时具有重要的参考价值。
At present, in the building of new shaft, rock drivage takes 40%-50% of whole project, and the construction takes 35%-50%.
目前，在新井建设中，岩巷掘进工程量一般约占总工程量的40% ~ 50%，施工工期占35% ~ 50%。
Based on plastoelasticity mechanics and surrounding rock-supporting principle, the stability of shaft was analyzed, and calculation formula of stress, displacement and support thickness were derived.
根据弹塑性力学及围岩-支护相互作用原理，分析了竖井稳定性，推导了竖井围岩与支护的应力、位移以及支护厚度的计算公式。
Cement injection of perforating holes in a frozen pipe is a wholly new technology for consolidating shaft wall rock and stopping water of frozen shafts in coal mines.
冻结管射孔注浆是在对石油输油井射孔技术和地面注浆技术进行研究的基础上，开发出的一种用于煤矿冻结井筒围岩加固和堵水的全新技术。
In the case that the pilot bore of the lock gate shaft was fully blocked by the rock mass, anchors have been combined with concrete to ensure the safety of subsequent side clearing and lining.
在闸门井导井被岩体完全封堵的情况下，为确保后期刷帮及衬砌安全，采用锚杆和砼结合对闸门井进行锁口。
The rheologic model has been used to analyze the interaction between shaft wall and viscoelasticviscoplastic surrounding rock in soft rock stratum.
利用流变介质模型，分析软岩立并并壁与粘弹塑性围岩的相互作用。
The MAXSP is compared with the result of the rock true triaxial compression test and that of the concrete twin-shaft, and is compared with Mohr-Coulomb's yield criter…
并与岩石真三轴压缩试验和混凝土双轴试验结果，以及莫尔-库仑等屈服准则进行了比较，证实了其合理性和适用性。
The failure background of an isolated rock wall in soft fractured rock mass of a mine shaft bottom is introduced.
介绍了某煤矿井底车场软弱破碎岩体孤立岩墙失稳破坏工程背景。
Meanwhile, surge shaft is an underground structure because its body is buried by surrounding rock, and the excavation of cavern with big inner diameter will influence stability of surrounding rock.
同时调压井埋于地下，属地下结构，大内径洞室的开挖关系到围岩的稳定。
Further more it also investigates the influence of the stiffness of CAM shaft and rock arm supporter and the high order frequency of CAM profile on the dynamic response of valve system.
同时考虑了气门初始间隙以及由此产生的冲击现象，并研究了凸轮轴刚度、摇臂支座刚度及凸轮升程高阶频率对气门运动规律的影响。
The shaft axial force first increases slightly with depth then decreases sharply, and the rate of decrease in rock is greater than that in sand and soil.
轴力随着深度先稍微增加，后逐渐减少，并且在岩层中减少的速度远比砂土中快。
The phenomenon of underground pressure and principle of surrounding rock control of deep shaft coal roadway are introduced.
分析深井煤层巷道围岩变形特征和支护失效的原因，提出此类巷道的内外结构耦合平衡支护原理。
The phenomenon of underground pressure and principle of surrounding rock control of deep shaft coal roadway are introduced.
分析深井煤层巷道围岩变形特征和支护失效的原因，提出此类巷道的内外结构耦合平衡支护原理。
应用推荐