Combined with the application of the equipment in Wugou coal mine,it introduces the setting and application process of LBY-Ⅲ instrument of roof separation,and points out that the equipment can make the progressive early prediction to the separation of rock stratum.
分析了LBY-Ⅲ型顶板离层指示仪的机构特点和仪器的技术指标,结合该仪器在五沟煤矿中的应用,详细地介绍了LBY-Ⅲ型顶板离层指示仪的安装应用过程,指出了该仪器能为岩层的分离提供渐进式的早期预报,具有显著的经济效益和社会效益。
Based on the site situation of interrupting work of bored piles during the construction of Maoliger Large Bridge in Hohhot-Hailar Corridor,Inner Mongolia,such as the collapse of boring wall,interrupting piles,on large side of the coefficient of borehole reaming,the rock stratum being stiff,etc.
针对内蒙古茂力格尔大桥基础钻孔桩施工过程中容易出现的坍塌断柱、扩孔系数偏大、岩层硬等实际情况,采取相应的质量保证措施,确保大桥钻孔桩的工程质量。
The cracking phenomenon of the vast underground rock stratum that has been accumulated for long years due to earghquakes is basically similar to the cracking process of the focus of an seism or a rock specimen.
：范围宽广的地下岩层在漫长的岁月里因地震而积累的破裂景观，和一震源体的及一块岩样的破裂过程基本相同。
Application of deciding the volue of coal seam roof strata thinkness in calculating sand content rate;
煤层顶板岩层厚度取值在含砂率计算中的应用
Due to the distinct difference in tensile and compressive properties,the position and deformation curvature of curved neutral layer will change with time for the!strata in a creep state.
由于岩石材料抗拉与抗压性能的明显差异,使岩层受蠕变作用时,其弯曲中性层位置及变形曲率都将随时间变化。
In this paper,based on the hydraulic fracturing test and gas well test,formation seepage properties are analyzed by means of inversion approach in back analysis.
以压水试验及气体试验为基础，采用反分析中常用的反演法，对岩层渗流特性进行了初步分析。
It is neccessary to know first the geological structure of rock formation or mineral on the surface of earth and earth interior, Strike-line can help us to determine indirect the attitude of rock formation, to make the geological map of dip rock formation, To determine the thickness and the deepth of rock formation , and fault separation,etc.
在矿产勘查、矿床开采以及工程设计等工作中 ,都需要首先了解地表及地下深处岩层或矿层的分布 ,查明地质构造情况 ,利用走向线可以帮助我们间接测定岩层产状 ,编制倾斜岩层地质图 ,求岩层厚度、岩层埋藏深度、断层的断距
We can get the markings to correctly pide the rock formations in the volcanic rock are- as by investigati.
根据野外考察每一次喷发所形成的顶面构造、岩性、岩相变化,以及进行岩石力学性质分析,岩石薄片分析研究等得出火山岩地区正确划分岩层的标志。
This paper analyzes the causations of slurry spillover,puts forward treatment schemes,adopts different slurry property in different terrane and makes drilling technique reasonable.
对泥浆漏失的原因,进行具体分析,并提出了泥浆漏失处理方案;对岩层的漏失地段,采用不同泥浆性能,使钻探工艺更加合理。
Adopt a new exceed detect technology to ascertain hornitos under bottom terrane by super caliber manual excavate stake and weak terrane in this article, and the technology is economical, save time and nicety, and it s a reference for architects and buiders.
采用超前探测技术,确定大口径人工挖孔桩桩底岩层下的溶洞及软弱层是一种新的技术,既经济、省时,又准确,可供设计及施工人员参考。