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- Coal rock is the muti-crevasse rock mass and its destruction forms are related with many factors. 煤岩是多裂隙岩体,在荷载作用下的破坏形式多种多样,而且煤岩的破坏与很多因素有关。
- This article emphasizes a prediction of overbreak,the unstable wedge, for openings in jointed rock mass. 本文着重于岩体中洞室超挖-不稳定楔形体的预测。
- The water is an important factor to affect the jointed and crannied rock mass slope stability. 水是影响节理裂隙岩质边坡稳定性的重要因素之一。
- The aseismatic stability of abutment jointed rock mass is the key problem of high arch dam. 高拱坝体型设计是关系到大坝安全和经济的关键技术问题。
- Unloading rock mass mechanics II. 卸荷岩体力学2。
- Coal rock can be classified as humic and sapropelic coal. 在煤岩的分类中,有腐殖煤和腐泥煤之分。
- Hydromechanical coupling of jointed rock mass was the key point for problems of hydraulics of rock mass. 摘要裂隙岩体的渗流应力耦合机理是岩体水力学的研究重点。
- The rock mass produced by an intrusive process. 侵入岩浆岩浆侵入过程中生成的岩块
- Block Theory,which is developed in recent ten years and more,is an effective and reliable method for jointed rock mass stability analysis. 块体理论是近十几年来发展和完善起来的一种适合于裂隙岩体稳定性分析的行之有效的工程方法。
- Discontinuous deformation analysis (DDA) method is a newly developed numerical method that can be used to perform deformation analysis of jointed rock mass. 非连续变形分析方法(DDA)是近年来发展起来用于分析裂隙岩体的一种较好的数值计算,其以新颖的思想、先进的数值技术,得到了学术界的认可和广泛关注。
- The Distinct Element Method(DEM)is a discontinuum-based numerical method especially applicable to solve the discontinuity problems in jointed rock mass. 离散元法是基于不连续性假设的数值方法,它特别适合于求解节理岩体中的非连续性问题。
- Based on the theory of linear-elastic fracture mechanics, the influence of vertical seismic action on seismic dynamic failure of jointed rock mass is discussed. 摘要基于线弹性断裂力学理论分析了垂直向地震作用对节理岩体地震动力破坏的影响。
- JIANG Jue-guang.The method of stereo graphic projectin for analyzing the jointed rock mass stability[J].Journal of Southwest Jiaotong University,1985,2(5):54-61. [6]蒋爵光.;用赤平投影进行节理岩体稳定性分析的方法[J]
- 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。
- Abstrct: How to simulate jointed rock mass effectively under the condition of lab is analyzed through thd super dynamic strain simulated test of practical jointed rock mass. 通过实际的节理岩体爆破超动态应变模拟试验,分析了如何在实验室条件下有效地模拟节理岩体并对节理岩体的超动态应变测试方法进行了初步探索。
- The coal rock is a byproduct in the produce of coal.It not only engrosses a lot of farmlands and soil, but also pollutes the environment seriously. 摘要煤矸石是煤炭生产中的一种副产品,不仅占用大量农田和土地,而且严重污染环境。
- Research shows that maceral and the degree of metamorphism of coal rock are key factors that control the generating and storing capacity of coal rock. 煤岩组分和煤变质程度是影响煤层生储气能力的主控因素。
- 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 elastic wave parameters characteristics of Datong jurassic coal rock bed are analyzed.It will guide the channel wave seismic exploration in future. 对大同侏罗纪煤田的煤岩层弹性波特征参数进行分析,以便指导今后槽波地震探测工作。
- 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