Overburden Deformation Due to Longwall Mining; Its Development and Final Distribution

نویسندگان
چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Distribution Measurement and Mechanism Research on Deformation due to Losing Water of Overburden Layer

Based on FBG fiber Bragg grating technology and BOTDA distributed optical fiber sensing technology, this study used fine sand to simulate overburden layer in vertical shaft model equipment. The placing technique and test method for optical fiber sensors in the overburden layer were studied, combined with MODFLOW software to simulate the change of the water head value when the overburden layer w...

متن کامل

Extension of Excavation Damaged Zone Due to Longwall Working Effect

In advance longwall mining, the safety of mine network, production rate, and consequently, economic conditions of a mine are dependent on the stability conditions of gate roadways. The gate roadway stability is a function of two important factors: 1) characteristics of the excavation damaged zone (EDZ) above the gate roadway and 2) loading effect due to the caving zone (CZ) above the longwall w...

متن کامل

Development of Numerical Models to Investigate Permeability Changes and Gas Emission around Longwall Mining Panel

Underground longwall mining of coal causes large scale disturbance of the surrounding rock mass. The disturbance can increase the rock mass permeability through a reduction on the stress as well as formation of new fractures in the rock. Methane gas contained in the disturbed rock mass can migrate towards the low pressure mine workings and present an explosion hazard. This paper describes the a...

متن کامل

Automation in Longwall Coal Mining - A Review

Coal is an important fossil fuel and will also be for the next decades [1]. The only way to achieve the challenges faced by the coal industry is to reduce production costs by improving productivity. Improvement of productivity has become an important goal for today’s coal industry in the race to increase price competitiveness. In recent years, underground mining method is becoming popular becau...

متن کامل

Longwall Mining Stability in Take-Off Phase

1 Department of Construction and Manufacture Engineering, Polytechnic School of Mieres, University of Oviedo, Mieres, 33600 Asturias, Spain 2Department of Exploitation and Prospecting Mines, Mining Engineering School, University of Oviedo, Oviedo, 33004 Asturias, Spain 3 Department of Exploitation Mines, Polytechnic University of Madrid, 28040 Madrid, Spain 4Department of Exploitation and Prosp...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Journal American Society of Mining and Reclamation

سال: 1994

ISSN: 2328-8744

DOI: 10.21000/jasmr94040337