Study on Mine Shaft Liner Breaking Mechanism and Application of Monitoring System in Deep and Thick Overburden

2012 ◽  
Vol 446-449 ◽  
pp. 1633-1636
Author(s):  
Peng Li He ◽  
Cui Ran Liu
Keyword(s):  
Monitoring System ◽  
Underground Water ◽  
Coal Industry ◽  
Vertical Force ◽  
Mine Shaft ◽  
Additional Force ◽  
Additional Strain ◽  
Breaking Mechanism ◽  
Thick Overburden ◽  
Main Factor

The non-mining damage of shaft liner in deep and thick overburden occurred frequently in China. This causes heavy losses to the coal industry in China. The paper had a discussion on theories that explain the breaking mechanism of the mine shaft liner. As pointed out, the mining activities could make underground water table dropping and the strata consolidation and compaction could cause the overburden subsidence. Therefore a vertical additional force would be affected on the mine shaft liner and the vertical additional force would be the main factor to cause breakings on the mine shaft liner. According to the cause, the paper holds that a monitoring system should be built to monitor the additional strain of the mine shaft liner. Based on the analysis of these data, the safety of the mine shaft liner can be accuracy evaluated and timely forecasted. Therefore the mine liner breaking could be prevented before fracture by decreasing the vertical force or strengthening mine shaft liner.

PROTOTYPE ALAT PEMANTAU SALURAN AIR BAWAH TANAH DENGAN MENGGUNAKAN WEBCAM C170 BERBASIS RASPBERRY PI

2015 ◽  
Vol 1 (1) ◽  
pp. 37-45
Author(s):  
Irwansyah Irwansyah ◽  
Hendra Kusumah ◽  
Muhammad Syarif
Keyword(s):  
Real Time ◽  
Monitoring System ◽  
Public Awareness ◽  
Underground Water ◽  
Raspberry Pi ◽  
Laptop Computer ◽  
Web Browser ◽  
Disaster Monitoring ◽  
The Times ◽  
Human Desire

Along with the times, recently there have been found tool to facilitate human’s work. Electronics is one of technology to facilitate human’s work. One of human desire is being safe, so that people think to make a tool which can monitor the surrounding condition without being monitored with people’s own eyes. Public awareness of the underground water channels currently felt still very little so frequent floods. To avoid the flood disaster monitoring needs to be done to underground water channels.This tool is controlled via a web browser. for the components used in this monitoring system is the Raspberry Pi technology where the system can take pictures in real time with the help of Logitech C170 webcam camera. web browser and Raspberry Pi make everyone can control the devices around with using smartphone, laptop, computer and ipad. This research is expected to be able to help the users in knowing the blockage on water flow and monitored around in realtime.

Design and Application of IC Card Paid Water Wells Remote Monitoring System

2014 ◽  
Vol 541-542 ◽  
pp. 1276-1280
Author(s):  
Dong Jiang Li ◽  
Zhi Hong Li ◽  
Jun Hao Yu ◽  
Xiao Yan Lou
Keyword(s):  
Monitoring System ◽  
Water Resource ◽  
Remote Monitoring ◽  
Control Unit ◽  
Underground Water ◽  
Basic Function ◽  
Ic Card ◽  
Remote Monitoring System ◽  
Modbus Protocol ◽  
Water Wells

Nowadays, the short of water resource has been a problem. To make the use of water resource more effectively, especially the underground water, we designed the IC card paid water wells Remote Monitoring System. The system consists of 3 parts--water wells terminal control unit, the data transmission network and supervisory and trade center. The process includes hardware design and software design. The core point consists of the IC card reading and writing processes and RS485 multi-device communication using MODBUS protocol. After testing, the basic function is completed, and it will be in the future having broad prospects for development in many fields.

Design of Multi-Protocol Converter under Coal Mine Based S3C2440

2014 ◽  
Vol 539 ◽  
pp. 563-566
Author(s):  
Ye Hui Liu
Keyword(s):  
Monitoring System ◽  
Coal Mine ◽  
Safety Management ◽  
Production Equipment ◽  
Coal Industry ◽  
Production Costs ◽  
Centralized Control ◽  
Control Center ◽  
Mine Production ◽  
Job Site

In recent years, China's coal industry accidents occur frequently, seriously affect the development of the coal industry, for the job site in the coal mine monitoring system installed several monitoring of coal mine production equipment to ensure safety and reliable operation of equipment. However, a plurality of building monitoring system meets some problems, such as reducing the waste of resources and production costs, and improve the level of safety management, the use of embedded technology designed S3c2440 based multi-protocol converter, prompting the original coal use different protocols and applications compatible with a variety of monitoring systems, monitoring of information data seamless transfer and access into the Ethernet switch, the status of the mine production equipment is transferred to the centralized control center for centralized management. This paper will be based on coal mine multi-protocol converter design S3c2440 detailed analysis and research.

Experimental Study on Impermeability and Frost Resistance of High Strength Concrete Used in Shaft of Coal Mine

2011 ◽  
Vol 287-290 ◽  
pp. 1019-1023
Author(s):  
Jing Feng Hou ◽  
Dong Ming Guo ◽  
Hui Dong Xu ◽  
Zeng Kun Yang
Keyword(s):  
Coal Mine ◽  
Frost Resistance ◽  
High Strength Concrete ◽  
High Strength ◽  
Mineral Admixture ◽  
Cement Stone ◽  
Mine Shaft ◽  
Strength Concrete ◽  
Overburden Soil ◽  
Thick Overburden

This paper presents results of impermeability and frost resistance tests of a series of high strength concrete which will be used in Yuncheng coal mine shaft lining. And the shaft is one of the most difficult to construct using freezing method because of the extreme thick overburden soil. The results show the impermeability and frost resistance of the selected concrete mix proportion options can meet the special requirements of the shaft construction. It’s due to the low water-cement ratio, admixture and water-reducing agent decreases void caused by excess water. And the composite mineral admixture forms bubbles to cut off the tiny water permeable channels in cement stone. Also the filling effect and pozzolanic effect caused by fly ash contribute a lot. The research on high strength concrete used in shaft of coal mine with thick overburden soil is still rare worldwide.

Application of Shaft Lining Monitoring System in the Deep and Thick Overburden

2012 ◽  
Vol 490-495 ◽  
pp. 1099-1103
Author(s):  
Peng Li He ◽  
Dong Xiao Zhang
Keyword(s):  
Monitoring System ◽  
Automatic Monitoring ◽  
Shaft Fracture ◽  
Monitoring Data ◽  
Reinforcement Effect ◽  
Automatic Monitoring System ◽  
Management Measures ◽  
Grouting Reinforcement ◽  
Shaft Lining ◽  
Thick Overburden

The vertical additional force could make the shaft lining in deep topsoil fracture. The force is caused by the bottom aquifer drainage settlement. In order to analyze the mechanical state of shaft, a shaft lining automatic monitoring system is built. The overall safety can be valuated by it. When monitoring data show that the shaft lining will be fractured, management measures can be timely taken to prevent more damage. In the process of ground grouting treatment to prevent shaft fracture, the monitoring data can be as the shaft lining stability and grouting parameters adjustment basis, to ensure safety and grouting reinforcement effect.

Study on Active Safety Training Methods in Coal Industry

2013 ◽  
Vol 726-731 ◽  
pp. 921-925
Author(s):  
Hong Yi Liu ◽  
Hai He Guan ◽  
Zhi Yan Zhao
Keyword(s):  
Coal Mine ◽  
Safety Management ◽  
Skills Training ◽  
Difficult Problem ◽  
Safety Training ◽  
Coal Industry ◽  
Mine Safety ◽  
Training Methods ◽  
System Method ◽  
Main Factor

In the process of coal production in China, people's unsafe behaviour is the main factor in the system safety. Therefore, the key work in the safety management of coal mine enterprises is reducing or eliminating the unsafe behaviour of people. To solve the injury problems of coal mine enterprises and achieve intrinsic safety, we must carry out effective safety training and management so that employees can transform from the "want me to safety" to "I want safety", make safety management active in coal mine production and achieve fundamental safe production. How to train the ability of "independent safety" should be said that a new direction, the traditional way often emphasis on instilling knowledge and skills training. To stimulate employees' awareness of "I want safety" is still a difficult problem which has no system method and theory yet. This paper aims to study these questions and try to provide some new methods and ideas to improve coal mine safety training.

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