headframe

at the top of the shaft there is usually a structure called a headframe . it contains some of the machinery necessary for mining operation.

在井筒顶部通常都有一个叫作井架的建筑，其上装有一些采矿作业所需要的机械设备。

on the building technique of headframe and the drilling skill by using concrete headframe

利用混凝土井塔凿井与井塔交叉施工工艺

dismantling technique of chimney slipform platform and hoisting sheave headframe by half- integral method

烟囱滑模平台及天轮井架半整体法拆除工艺

stability analysis of the main headframe in one mine

某矿主井井架稳定性分析

the measure of rectifying deviaticy of a type's headframe

一种A型井架纠偏方法

Utilizing the everlasting headframe might effectively cut down the mine building construction period and had beneficial result and economic results.

利用永久井架凿井可以有效地缩短矿井建设工期。为业主带来良好的社会效益和经济效益。

the ends of the wire ropes are respectively connected on suspension cages through fixed pulley blocks respectively installed on a headframe.

钢丝绳的线头各自通过安装在井架上的定滑轮组，又各自连接到吊笼上。

discussion on steel headframe design technology

钢井架设计技术探讨

fabrication process of heavy box-type steel headframe

大型箱型钢结构井架构件的制作工艺

mast method installation technique for large multi rope hoist steel structure headframe

大型多绳提升钢结构井架的桅杆法安装工艺

Application of angle bar space frame in headframe support

角杆空间框架在井架立架中的应用

the article describes the fabrication methods and quality control factors on heavy box-type steel headframe .

本文介绍了大型箱型钢结构井架的制作方法及质量控制要素。

auto-control and safety tracking system for hoisting and assembling operation of large steel structure headframe

大型钢结构井架吊装自动控制及安全跟踪系统

Way of drawing itself to replace the sheave wheels of headframe

用自拉自法更换煤矿井架天轮

load calculation in the design of steel headframe for mine

矿山钢井架设计的荷载计算

application on vertical headframe with steel pipe in construction of high-rise buildings

钢管竖井架在高层建筑施工中的应用

the application of self-made headframe of section steel in the pier construction

自制型钢井架在桥墩施工中的应用

construction tech. by using box steel structure headframe as drilling headframe

箱形钢结构井架兼作凿井井架快速建井技术

discussion on practical standard for vertical correction of double inclined supports box type headframe

双斜撑箱形井架找正执行标准的探讨

construction of basis of headframe in complicated geological condition

复杂地质条件下井架基础施工技术

control and treatment of inclination for box type single side inclined support headframe

箱形单侧斜撑式井架偏斜现象的治理

Through variable displacement of one end of pole is regarded as elementary parameter to represent the value of the other end of pole, this paper presents a way to calculate whole stability of steel headframe using matrix operation.

通过用杆件一端的变量位移作为基本参数表示另一端的值，得到用矩阵计算钢井架整体稳定的方法。