您要查找的是不是:
- mining rock mass system 采动岩体系统
- Unloading rock mass mechanics II. 卸荷岩体力学2。
- The rock mass produced by an intrusive process. 侵入岩浆岩浆侵入过程中生成的岩块
- The acoustic emission system as a technique for the monitoring of stress change in a rock mass has now become mature. 声发射系统作为一种探测岩体内部应力变化的技术从其诞生到现在已逐渐成熟。
- This paper presents the study in-situ on stress field of rock mass around mining area of Bai-jiac. 本文介绍了白皎矿区岩体应力场的现场研究。采用孔径应力解除法进行了两个点六个钻孔的空间应力测量。
- In the local or global movement of rock mass under mining,overlying strata play a key role. 上覆岩层对采动岩体活动全部或局部起决定性作用,上覆岩层运动是一个复杂的时空过程,具有时效性。
- The test simulated truthfully ground deformation and rock mass movement at different mine level. 该试验逼真地模拟地下不同的开采水平引起的地表变形和围岩移动过程。
- Enhance the mass system, increase the competition ability of the escutcheon. 强化质量体系,提高名牌的竞争力。
- Simultaneously, the displacements of the rock mass were monitored. 与此同时,还对矿房围岩的变形进行了监测;
- The mining subsidence mechanism of metal mine with fractured blocky rock mass is different from that of coal mine with layered rock mass. 摘要金属矿山多为裂隙发育的块状岩体,因而开采引起的地表沉陷机制不同于层状地层的煤矿。
- However,few works and reports are known on the topics of large-scale rock mass movement and ground fissures resulting from the mining with backfill. 通过对金川二矿区地裂缝的现场调查和槽探揭示,分析地裂缝的分布特征及其与地下采矿的关系。
- A fracture or crack in a rock mass along which no appreciable movement has occurred. 裂缝,裂口岩石块中的碎片或缝隙,在其周围未发生过可被觉察到的运动
- With the finite element method of material description,the rock mass in underground and opencast united mining engineering was simulated and analyzed. 采用物质描述增量有限元方法,对露天与地下联合开采工程岩体进行了数值模拟分析。
- In the end,the index system and technical measures to effectively control cataclastic rock mass caving are proposed, and the downtime due to cataclasti... 在此基础上,本文提出了有效控制碎裂岩体冒顶的指标体系与技术措施,进而在生产实践中成功地控制了碎裂岩体冒顶事故。
- The invention provides a mass system deployment device which comprises a distribution module and a reception module. 本发明提供一种批量系统部署装置,包括分发模块和接收模块;
- At present, borehole explosion and borehole wedging methods are widely used in mining rock materials and cutting block raw rock in middle and small rock material quarry in China. 目前国内中小型石材矿山大多采用钻孔爆破法和钻孔打楔法进行石材开采和大块料石分割。
- The company passes Chinese mass attestation centre (CQC) ISO9001: 2000 mass system attestation on March , 2003. 公司于2003年3月通过中国质量认证中心(CQC)ISO9001:2000质量体系认证。
- Discusses the dynamic theorem of mass system relative to centre of mass moving in a plane. 论述了质点系相对于随质心一起作平动的座标系的动力学规律。
- mined rock mass 采动岩体
- The rock mass of syenite porphyry in the north part of Babaoshan coal mine was demonstrated on its lithologic characters,geologic age and occurence. 从岩体的岩性、时代、产状等方面,论证了八宝山煤矿北部的正长斑岩体为一岩盖,下部找煤前景可观,可在井下实施巷探和定向钻探找煤,以延长矿井寿