1.
Drag bits are used most commonly in soft formations.
在松软岩层中最常用的是钢砂钻头。
2.
A new Method for researching the earth stress of soft rock strata such as coal-bearing strata and its application
煤层等软岩层地应力研究新方法及其应用
3.
Applying Soft Rock Strata to Carry the Grateful to Experiment Design to Dig a Bore Enlarge Bottom Stake Frusta
应用软岩层载荷试验设计挖孔扩底桩墩
4.
The Key Mechanical Parameters Determination of Rock Mass for the Slope Engineering in Red Stratum s Region;
红层软岩边坡关键岩体力学参数确定
5.
Characteristics research on drilled soft rocks and similar simulation of soft rock layer
针对钻进的软岩特性研究及软岩地层相似模拟
6.
Influence of Weak Mudstone Intercalated Layer on Mechanical Properties of Laminated Salt Rock
软弱泥岩夹层对层状盐岩体力学特性影响研究
7.
RESEARCH ON SHEAR CREEP PROPERTY OF TYPICAL WEAK INTERCALATION IN REDBED SOFT ROCK
典型红层软岩软弱夹层剪切蠕变性质研究
8.
Research on Deformation Law of Surrounding Rock in Deep Soft Rock with Chamber-Pilot-Roadway Method
深层软岩中硐室导巷法围岩变形规律研究
9.
Illustration Analysis on Bearing Capacity of Pile Embedded in Soft Rock
软岩作为持力层的嵌岩桩承载力实例分析
10.
Study on Engineering Geology of Red Bed Soft Rock Tunnel in Yintao Project;
引洮工程红层软岩隧洞工程地质研究
11.
Application of modified SMR to redbed soft rock slopes
修正SMR法在红层软岩边坡中的应用
12.
Experiment and Research on Deep Borehole Blasting in Mine Rock Roadway with Thick Soft and Weak Parting
厚软弱夹层岩巷中深孔爆破试验研究
13.
Full-mechanized Caving Mining Test under Soft Sand Aquifer
松软砂岩含水层下控水综放开采试验
14.
Study on Settlement Control of Embankment and Soft Foundation of High-Speed Railway in Red Rock Area;
红层软岩地区高速铁路软基路堤沉降控制研究
15.
STABILITY AND STRENGTHENING ANALYSES OF SLOPE ROCK MASS CONTAINING MULTI-WEAK INTERLAYERS
多层软弱夹层边坡岩体稳定性及加固分析
16.
The Application of Combined Supporting Coal Seam to Roadway Soft Rock Crossing Coal Faultage
软岩开拓巷道过煤层断层时联合支护的应用
17.
Numerical Simulation Study on Strata Movement Rule of Roof,Floor and Abutment Pressure Distribution Rule of Working Face
“三软”煤层采场岩层移动规律数值模拟研究
18.
It passes mainly through the purple--color soft sandrock and mudstone in Triassic or Dyas Systems.
隧道主要通过三迭系、二迭系紫红色软质砂岩、泥岩岩层。