soft roof是什么意思

网络释义

用法例句

Taking digging side in returning lane in third district 4# in Hexi Mine as example, this paper introduces the application of anchor bearing in special condition in half lane of soft rock compound roof and discusses effect and economic efficiency of lane bearing and measures taken for construction on the spot.

以贺西煤矿三采区4#回风巷掘进工作面为例,介绍了软岩复合顶板半煤巷锚杆支护在特殊条件下的应用,并针对现场施工采取的施工措施以及巷道支护的效果和经济效益进行了论述。

Experience in combined supporting for use in large-span underground chamber under soft roof strata

软岩顶板下大断面硐室联合支护经验

Study on Failure Law and Support Technique of Stratified and Weak Rock Roof of Roadway;

煤巷层状软岩顶板破坏规律及支护研究

The selecting type of the support and roof control in soft rock coal seam floor

软岩底板煤层支架选型及顶板控制研究

The Supporting Study of Soft-Rock Composite Roof of Stoping Tunnel in Saqu Coal Mine;

沙曲矿回采巷道软岩复合顶板支护研究

Study on the Surrounding Rock Stability and Safety Control of Roadways Roof Embedded Weak Intercalated Seam;

软弱夹层顶板巷道围岩稳定与安全控制研究

Research on the Mechanism of Roof-floor Shearing Deformation and Breakage in No.1 Coal Mine of Shi Zuishan Deep Weak Rock Roadway;

石嘴山一矿深部软岩巷道顶底板剪切变形破坏机理研究

Malisan Resin Reinforce Roof Technology Being Used in Development in Soft Rocks

马丽散树脂加固顶板技术在松软岩层掘进中的应用

The casing was driven into the soft muds in the top.

套管被送入软岩粉顶。

Detector of Coal Seam Roof Strata Based on S3C44B0X Framework

基于S3C44B0X构架下的煤层顶板岩层探测器

Control on rock friction sparks and heating-up of sandstone roof in a coal mine

抑制煤矿砂岩顶板岩石摩擦火花和升温

a soft sandstone used for scrubbing the decks of a ship.

一种软质砂岩，用于洗磨船的甲板。

a pencil of soft slate (or soapstone) used for writing on a slate.

用来在石板上书写的软岩（或皂石）铅笔。

Analysis on soft rock properties for building Baisha CFRD

白沙面板堆石坝软岩填筑料性能分析

Research on Comprehensive Control Technique for Heavy Roof Fall in Weak Mudstone Drift

松软泥岩巷道大冒顶综合治理技术的研究

Pressure releasing and gas drainage with long bore hole in roof overburden of fully mechanized caving face

综放面顶板覆岩走向长钻孔卸压抽放瓦斯研究

Roof Giant Conglomerate and Technology Controlling Roof Water;

巨厚砾岩顶板突水机理及防治技术研究

Study on the Roof Stability of Concealed Karst Cave under Pile Foundation Loading in Karst Areas;

岩溶区桩基荷载下隐伏溶洞顶板稳定性研究

Dynamical Geology Evaluation and Controlling Methods of the Roof Stability for Longwall Top-coal Caving Face;

综放面顶板岩体稳定性地质动态评价及控制