0 for the movement of overlaying strata and fracture development caused by the mining of upper protective layers of coal seams with close quarters.
0软件对近距离上保护层开采导致的覆岩移动及裂隙发育过程进行数值模拟。
It is based on utilizing reopening tests of the preexisting fissures in borehole.
提出了利用钻孔中原生裂隙的重张试验，在单钻孔中进行水压致裂法的三维地应力测量的原理和方法。
The application of seismic attribute technique to predict Ordovician limestone karst fractured zones;
地震属性技术在奥灰裂隙发育带预测中的应用初探
In predicting Ordovician limestone karst fractured zones, the wavelet transform can enhance signal/noise ratio (S/N) and the resolution of seismic signals; the parameter of two-dimensional fractal has its own value; and the combination of them is an eff.
以许厂煤矿的应用为例,介绍了小波变换和二维分形技术的基本理论以及预测奥灰裂隙发育带的方法、步骤及效果。
The research of faults and fractured zones is very important in coal mine security and production.
为了提高煤田开采的效率,准确、快速地确定断层和裂隙发育带已迫在眉睫。
Study on Development of Fracture and Numerical Simulation of Seepage;
裂隙发育规律研究及渗流场数值模拟
The crack of crack inflected the stability of the Grotto, and the effect of water prick up the effloresce of the cultural relics in the Grotto.
裂隙发育影响了石窟的稳定性,水的活动加剧了石窟文物的风化。
Tangshan city is the typical karst-cranny developing area in Huabei region which is shallowly covered up.
唐山市是华北地区典型的岩溶裂隙发育浅埋地区。
The way and principle of Gaussian curvature method for forecasting natural fracture zones in coal seam are discussed.
论述了高斯曲率法预测煤层天然裂隙发育区的基本原理和方法。
Research and Application of Geological Structure Investigation and Assessment of Open Rock Fracture
露天裂隙发育岩体地质构造调查及评价的研究与应用
Some Discussions on Excavation Craftsmanship on Rock Bench of Rock Anchor in Growing Rock Body with Invisible Cracks
隐形裂隙发育岩体中岩锚吊车梁的岩台开挖工艺探讨
MONITORING AND SIMULATION RESEARCH ON DEVELOPMENT OF WATER FLOWING FRACTURES FOR COAL MINING UNDER XIAOLANGDI RESERVOIR
小浪底水库下采煤导水裂隙发育监测与模拟研究
On the height of water flowing fractured zone in Shenjiawan coal mine
沈家湾煤矿导水裂隙带发育高度研究
Study on lateral boundary of roof water flowing fracture devel opment regularity
采空区顶板导水裂隙侧向边界发育规律研究
Research on the law of fissure zone of conducting-water development and overlying strata cycle breakage mining under water-rich rock layer
富水层下开采导水裂隙带发育及覆岩周期破断规律研究
The Study of Induce-crack Mechanicals and Cranny's Development Process about Hydraulic Fracture in Mining-coal Bed;
本煤层水力压裂致裂机理及裂隙发展过程研究
According to the criteria, natural fracture zones of No.3 coal seam are divided into four grades and then the permeability distribution of No.3 coal seam is preestimated.
依据该标准将3号煤层天然裂隙划分为4级发育区，进而预测出3号煤层渗透率的分布概况。
As the tension fractures exist, spread and deep weathering is strong, which causes the lowing of the strength of the engineering slope.
正是由于两组张裂隙的存在，使边坡岩体深强风化发育，从而降低了坝肩岩体的强度。
A crack, crevice, or split.
裂缝裂隙、缺口或裂缝
On mechanism of fissure water pressure causing deformation and failure of low dip slop
裂隙水诱发缓倾角滑坡变形破坏机理初步研究
Development of THM Coupling Parallel Computing Program in Equivalent Rock Masses
等效裂隙岩体THM耦合并行有限元程序开发
A narrow opening, such as a crack or fissure.
裂缝如裂缝或缝隙之类狭窄的裂口
A cranny, hollow, or crevice, as in rock.
裂缝裂痕、中空或裂隙，如在岩石上