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- The overlying strata movement is a complicated dynamic process. 摘要矿山开采引起上覆岩层的移动是一个复杂的动态过程。
- It is also shown that digital speckle correlation method has higher accuracy, and richens the research method of overlying strata movement. 数据分析还表明,数字散斑相关方法具有较高的精度,这一新的研究方法引入,丰富了上覆岩层活动规律的研究手段。
- Keywords goaf;overlying strata movement;analog simulation;cranny water; 采空区;覆岩移动;相似模拟;裂隙水;
- Analog Simulation of the Law of Overlying Strata Movement Under Close Quarters Goaf Mining 近距离采空区下开采覆岩移动规律相似模拟研究
- Analysis of overlying strata movement and failure in extracting under extremely thick and water-content incompact roof 巨厚松散强含水层下开采覆岩移动破坏分析
- Variability Analysis of Overlying Strata Movement rule and Mining Field Pressure Under Super-thick Magmatic Rock 巨厚岩浆岩下开采覆岩移动规律及采场压力变异性分析
- overlying strata movement 上覆岩层移动
- 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。
- Because overlying Strata upon shallow coal seam is thin, movement and stress behaviors of overlying Strata all bear particularity during mining. 浅埋煤层由于上覆岩层较薄,在回采过程中,上覆岩层的移动及矿山压力的显现,均具有特殊性。
- According to the field investigation at Dayang coal mine, the paper describes behavior of ground pressure of longwall top coal caving face with soft surrounding rock and movement of overlying strata. 本文通过大雁二矿28%23层采面矿山压力的实测分析,论述了软岩矿井大采放比综放开采矿压显现特征和围岩活动规律。
- Thus, the movement state of overlying strata must be taken into account to the bolted reinforcement design of rise entry affected by mining action as well as the size design of remained pillar. 因此,上山锚杆支护设计和煤柱尺寸的留设必须充分考虑上覆岩层的运动状态。
- Finally the existence of key layer of overlying strata is proved with practical example. 最后,用实例证明了覆岩关键层的存在及对地表下沉的影响。
- There used to be igneous intrusions into coal measures and overlying strata in the Hanxing coalfield. 邯邢煤田煤系及其上覆地层中常有岩浆岩侵入体穿插。
- When mining under water, the height of the water suture zone in the goaf's overlying strata has direct effect on the safety of the production in mines. 为解决进行水下开采时,采空区上覆岩层导水裂缝带的发育高度直接影响煤矿安全生产问题。
- It also contrasts and analyzes the influence of thin and thick overlying strata on the height of caving zone and water flowing f... 结果表明覆岩越薄,两带高度越小,对提高开采上限具有积极的意义。
- By the analogy simulation tests on Xingtai mine, the failure characteristics of overlying strata and its displacement regularity are studied. 笔者是通过相似模拟试验对邢台矿的煤层上覆岩层破坏特征及其位移变化规律和顶板的应力变化规律进行了研究。
- Base on the mining practice,suppose the overlying strata a elasticity sheet metal,establish a new ground prediction model. 基于矿山开采的实际情况,将上覆受采动影响的岩层假设成弹性薄板,应用弹性板理论,建立了一种新的地表沉陷预计模型。
- The overburden strata movement is a complicated time and space process. 上覆岩层的运动是一个复杂的时空过程。
- Overlying strata spatial structures of longwall formed by working faces that is mined and four sides are substance coal are named "O" letter type spatial structures. 我们把一面采空(四周为实体煤)形成的采场覆岩空间结构称为“O”型空间结构。
- The overlying strata of the coal bed roof are dominated by sedimentary rocks such as shale,sand stone and limestone,whose physical and mechanic properties differ greatly. 煤层顶板覆岩一般以页岩、砂岩、灰岩等沉积岩为主,其物理力学性质差异很大。