A new leading protection device was designed for the anti-longitudinal rips belt caused by the press and jam of big material.
对大块物料或长条形异物卡压引起带式输送机纵撕事故机理进行了分析,设计了一种新型超前防压卡纵撕保护装置,该装置采用双作用综合判定,选用的关键器件简单、可靠,当发生压卡输送带条件时便立刻停机保护,避免了发生撕带引起的损失,可起到超前保护作用。
The paper introduces the design,manufacture and implementing situation of the leading cable and hose towing director motion devices in the working face of Datong Coal Mine Group Silaogou Mine to mine the full coal height once and offer some suggestion for reference to administrate the leading cable and hose towing director motion devices for the future.
简要介绍同煤集团四老沟矿大采高工作面超前电缆及管路拖曳导向移动装置设计制造和实施情况,为今后综采工作面超前电缆及管路移动管理提供借鉴意义。
Space positioning of shield is determined by 3D Cartesian coordinates and 3D attitude angle;positioning of segment lining ring is determined by 3D Cartesian coordinates plus 2D "leading of a side" and roll angle.
盾构机的空间定位用三度直角坐标和三度姿态角,拼装式衬砌环的定位用三度直角坐标加两度"侧超前"和横滚角。
It shall increase its technical level and supply an active and positive service to meet all the market requirements of the owner and construction units,including leading service and lash-u Pone to deal with natural disasters.
设计企业如何做好对业主的满意服务即服务质量的提高,这就需要按照卓越的理念从提高自身的技术水平和提供主动积极的服务来满足业主和建设单位的各种市场需求,包括超前服务和应对自然灾害的突发性处理服务。
An introduction is given to the goal, thinking, method, means, working principle, procedures and judege method, result of forecasting and experience of advance forecasting technology in geological survey for construction of large tunnel,based on the advance forecasting technology used in Jindong Tunnel on Chongqing-Huihua Railway Line.
结合渝怀铁路金洞隧道施工地质超前预测预报技术的实施,着重介绍长大隧道施工地质超前预测预报技术应用研究的目的、思路、方法、手段、工作原理、实施步骤与判别方法、主要预测预报成果及体会。
Judging from its form, exaggerated premature sentence consists of two features:1.
从形式上看 ,“还 A就 B”超前夸张句式具有两个特征 :1、关系词“还”“就”相互作用 ,组成“还 A就 B”结构 ;2、A、B处于同一语法平面 ,相互之间无包含与被包含的关系。
This paper analyses prematured exaggeration sentence pattern of "还 A 就 B" by grammatical forms, semantic features and pragmatic information.
本文从句法形式，语义特征，语用信息三方面讨论“还A就B”超前夸张句式。
In consideration of the problems of starting pressure,effective driving pressure difference being hard to be established between oil and water wells in low permeability oilfields,it was proposed that advance water injection was used.
基于低渗透油田存在启动压力梯度、油水井间难以建立起有效的压力驱动压差,提出采用超前注水的开发模式。
The advance management is in progress to the ventilation system.
通风系统接替必须超前于采掘接替,必须依据未来的采掘布局对通风系统的走势进行安全评估,必须对通风系统进行超前管理。
Aiming at the abnormal strata behavior in the advance entry of 1303 fully-mechanized working face in Xinglongzhuang coal mine,the movement rule,characteristic,step distance of fracturing,position and mode of fracturing of the overlying strata in mining process is analyzed by using the key strata theory.
针对兴隆庄煤矿一采区1303综放工作面超前平巷发生奇异压力的现象,采用关键层理论对在采动过程中的上覆岩层运动规律进行了详细的力学分析,研究了它们的运动特征、破断步距、断裂位置、断裂方式以及对工作面及其超前平巷的来压规律,对比分析了该工作面矿压实测数据与理论研究成果。
Advanced water injection in low permeability reservoir of The wuqi oilfield;
超前注水技术在吴旗油田低渗透油藏开发中的应用
And put forward a way to calculate the optimum occasion of advanced water injection.
从油藏物质守恒原理出发,建立了低渗透油藏水驱开发指标概算的方法,提出了一种低渗透油藏超前注水合理时机的计算方法,并从理论上进行了验证,研究了低渗透油藏超前注水合理时机与渗透率的关系。
Compares synchronous water injection and delay water injection,advanced water injection technology injection first,then recovery,it has obvious advantages in complementing the formation energy properly,creasing the formation pressure and maintaining a strong productivity of the oil wells.
与同步注水和滞后注水相比,超前注水这种先注后采的开发方式,在合理补充地层能量,提高地层压力及保持油井较高生产能力等方面的优势更加明显。