pit bottom

用法例句

Support technology for goaf left by small coal mine in mine shaft bottom of Shuguang Mine;

曙光矿井底车场小煤窑遗留采空区支护技术

The heaving floor forms in the soft rock roadway have been presented by the surveying researches on the drift of the shaft station which in the soft fractured zone in the tectonic stress concentration zone of Guhanshan coal mine,The causes of the heaving floor have been analyzed.

通过对处于软弱破碎带及构造应力集中区之中的古汉山煤矿井底车场巷道的长期观测研究 ,提出了软岩巷道底臌的形式 ,并结合该矿实际情况 ,分析了底臌形成的原因 ,提出了防治底臌的措施 ,有效地解决了巷道中底臌事故 。

Through the analysis of the field observation and the investigation of the randomness of the railway haulage system of the shaft station, a limited customer M/ M/ 1 queuing model of cradle dumpers in the station is developed and the optimum design of shaft stations is approached.

通过现场观测与调研及对井底车场轨道运输系统随机性的分析，建立了井底车场翻车机系统顾客源为有限（ｍ）的Ｍ／Ｍ／１排队模型，进行了井底车场优化设计的初步探讨。

Stress distribution rules of surrounding rock of shaft station and neighboring caverns before and after mining in Tunliu Colliery of Lu an Group were analyzed by numerical simulation,which provided theoretic foundation for supporting shaft and caverns and provided reference for shaft station design and construction with similar conditions.

通过采用数值模拟方法,模拟分析了潞安屯留煤矿副井井筒及井底车场附近巷道和硐室在开挖前后围岩应力场的变化规律,为井筒及硐室加固提供了理论依据,为今后类似条件下井底车场设计及施工提供参考。

Based on the complex geological conditions in Guotun Coal Mine of thick overburden, large inflow of water and high ground stress, this paper proposed some technical problems should be considered in shaft sinking and pit bottom construction and the countermeasures.

本文提出了巨野煤田郭屯矿井表土层特别深厚、基岩段井筒涌水量极大、井底车场地应力极高等复杂地质条件下井筒和井底车场等关键工程施工应考虑的若干技术问题及对策。

Code for design of chambers around pit-bottom of coal mine

煤矿矿井井底车场硐室设计规范

On application of value engineering in selection of bottom-hole yard scheme of inclined shaft

价值工程在斜井井底车场方案比选中的运用

By Gas Release Hole Embedded Grouting Bolt Reinforcing Shaft Botton Chamber

利用瓦斯释放孔预埋注浆锚杆加固井底车场硐室

Analysis of Roadway Supporting Technology Used in Wind Shaft Station of ZhuJi Thousand Meters Mine

朱集矿千米深井风井车场巷道支护技术及分析

Study on the Slope Stability of Loess Floor Earth-disposal Site which Has been Affected by well Mine;

井采影响下黄土基底排土场边坡稳定性研究

Study on Bottom Hole Flow Field of B9M-PDC Scraper Bit

B9M型金刚石复合片刮刀钻头井底流场研究

Study on the Effect of the Nozzle of Drag Bits on Bottom Hole Flow Field

刮刀钻头喷嘴直径对井底流场的影响研究

Code for design of district station and chambers of coal mine

煤矿矿井采区车场和硐室设计规范

balanced bottom hole pressure method

井底压力平衡压井法

Application of vertical secondary knick in high and low canal of upper yard of inclined shaft

竖面二次变坡在斜井上部车场高低道中的应用

II1 Coal Floor Seepage Field Pattern and Water Control Measures in Ningzhuang Pit, Liyuan Coalmine

平煤梨园矿宁庄井二_1煤层底板渗流场规律及防治水对策

Shaft sinking winch

GB/T15112-1994凿井绞车

rathole gravel slurry

井底口袋内的砾石砂浆

draw-down bottom pressure curve

抽汲期间井底压力曲线

surface pressure read-out

地面直读井底压力计

leg base anchorage

井架大腿底脚的固定

wireline downhole guidance tool

钢丝绳井底导向工具

inflow production relation

井底流压-产量关系