Coal Mining Technology 2000 Issue 2 The Analysis and Forecast of Electric—Hydraulic Control System for Hydraulic Supports

The Analysis and Forecast of Electric—Hydraulic Control System for Hydraulic Supports
wang guo fa ; zhu jun ; zhang liang ; li shou bin

..............page:5-8

Estimation on Hydraulic Props with Water Medium
zhang wei ping

..............page:9，12

Discussing on Survey Technology for Strain in High Buildings
yang ting wen ; wang yang

..............page:10-12

Coal Minlng Practice under Water- Bearing Strata Near the Sea in Longkou Mine Area
xue zhong zhen ; zhang wen

..............page:13-14

Practice and Understanding in Mining Seams of Taiyuan Group
zhao jian hua ; zhao cheng bin

..............page:15-16

Safety Mining under the Conditions of Multi - Factors Complicated Geology
zhao fang min ; zhu xue jun

..............page:17-18

Key Technology in Mining Soft Coal Seam between Soft Roof and Soft Floor by Leaving Top Coal
wang yu huai ; wang xin min

..............page:19-21

Partial Mining under Buildings on Mountainous Areas
huang sheng gen

..............page:22-24

Practice for Fully Mechanized Face being Increased by Connecting
meng hui ; wang zhen jun

..............page:26-27，29

Optimization of Blast Parameters in Slice- Mining Faces
tan shi zuo ; zhu qi kuan ; sun ya nan ; pan chuan lian

..............page:28-29

Optimization Design and Application of Protection Pillar for Villages
liu sheng zhong ; wu cheng hong

..............page:30，32

Feasibility for Coal face Crossing through Main Road
wei jia yuan ; zou guo cai ; wang xiang yang ; yang rong ming

..............page:31-32

Study on Principle and Measurement of Bolt Supporting Effect
wang qing shen ; zhang jun

..............page:33-34，40

The Movement Law of Underlying Roadways under the Effects of Mining
luo wu xian ; xia zhong yang ; sun qian

..............page:35-36

Discussion about Roadway Layout and Coal Recovery
gu bing long ; zuo zhen gang ; zhang shuang lin ; wang dong fang

..............page:37-38

Some Methods to Improve the Effect of Roadway Support
shao chang zeng ; dong zheng liang ; wang ai ping ; liu ji ye

..............page:39-40

Trial Manufacture and Application about New Bolt System for Roadways in Coal Seara
gao hong liang ; kong xiang yi ; wang yong jie

..............page:41-43，71

Unloading Blast Technology in the Floor of Roadways in Pressure- Bump Coal Face
he quan hong

..............page:44-45

Study on Road way Underground Pressure under the Condition of Roof Bolt Supporting and Different Width Pillars
wu feng guo ; liu ji fa ; chen guang yan ; shen tong shun

..............page:46-48

KGJ-B Comprehensive Monitoring Sytem' s Suceessful Use in Fully Mechanized Coal Faces
ma qing fu ; li shou bin ; li kui lai

..............page:49-50

Distributed Computer Testing System for Self- ignite Catch Fire Section Under Well
yue feng tian ; zhao xing jun

..............page:51-52

Study and Application of Filling Gel to Avoid Fire Disaster
fei wan chao ; zhang heng nian ; hang yin jian

..............page:53-54，56

Roof Control in Compound roofs and Mechanized Coal Face with Hydraulic Props
zheng yong an

..............page:55-56

Computer Technology Application to Coal Reservation Mangement
ma zhong bao ; chen shao yi

..............page:70-71

Predicting Month Production in Mining coal Face By Comprehensive Evaluation Method
he yu rong

..............page:68-69

Safety Technical Management of Fully Mechanized Coal Faces in the Mine
wu jun wei

..............page:66-67

Analysis on the Hydraulic Props' Damage Reason in Mining Coal Faces
wang shi qiang ; gao wei qin ; zhang yi gao

..............page:65，71

Common Problems and Their Measurements to endless Rope Carrying People
wen quan ; chu fan xue ; zuo zhao ming

..............page:62-64

Determination and Analysis on Features of Mine Fan Diffnser
kong de cai ; xia fu fang

..............page:59-61

Expand-Seal Devices for Hydraulic Props
wang wei zhu ; jing shu jun ; zhang ge

..............page:57-58，61