sublevel caving

Technology of high efficient mining for fully mechanized sublevel caving working face to sideway pass through sunk column

综放工作面遇陷落柱高效开采技术

The calculation on working resistances of supports has been one of key research questions sublevel caving.

支架工作阻力计算是综放开采研究的主要问题之一.

The test and application of hole-bottom priming method in sublevel caving mining

孔底起爆法在无底柱分段崩落法中的试验与应用

For those mines adopting the sublevel caving method, the large structure parameters of the natural lay are not suitable for the ore drawing in transition sublevel process.

采用无底柱分段崩落法回采的矿山，在向大结构参数的转变过程中，正常布置的大结构参数不适用于过渡分段的放矿。

New technique of lateral sublevel caving method for the Large inclined thick seam

急倾斜厚煤层柔掩侧向放煤开采技术研究

On improving recovery rate of top coal by sublevel caving mining in complex thick seam

提高复杂厚煤层放顶煤开采顶煤回收率的研究

Analysis of Mining Pressure in Sublevel Caving and Its Controlling Methods

无底柱分段崩落法采动地压规律分析及控制方法研究

Sublevel caving without sill pillar is used in Xishimen Iron Mine.

西石门铁矿采用无底柱分段崩落采矿法开采.

Analyses factors that affect cover caving ability of roof coal in sublevel caving mining method.

分析了放顶煤开采顶煤冒放性的影响因素.

A computer-aided technical management for sublevel caving is established and its structural design, compositions and functions are introduced.

介绍了一种适用于无底柱分段崩落法的计算机辅助技术管理系统的结构设计、系统组成与功能等。

Review of Research on Ventilation Method of Entry for Sublevel Caving Method

无底柱分段崩落法进路通风方法研究综述

A Theoretical Calculation Method of the Sublevel Caving Step-distance

综采放顶煤步距的一种理论确定方法