【摘 要】
：
Being as an example of Fuxin, gangue abandoned place was classified gangue hill and dump. It was built 68 piece of temporary standard fields, which physical and chemical character of soil were researched and analyzed. The quality of district site was esti
【机 构】
：
College of Resource and Environment Engineering, Liaoaiag Technical University, Fade 123000, China
论文部分内容阅读
Being as an example of Fuxin, gangue abandoned place was classified gangue hill and dump. It was built 68 piece of temporary standard fields, which physical and chemical character of soil were researched and analyzed. The quality of district site was estimated, and five type abandoned place were gotten. Stopping draining cash less than 7 a and draining cash gangue hill was regarded as Ⅰ gangue hill. Stopping draining gangue age limit 7-15 a and herbage abundance being CO1p level was regarded as Ⅱ gangue hill.Stopping draining gangue age limit 15～25 a and herbage abundance CO2p level was re-garded as Ⅲ gangue hill. Stopping draining cash gangue age limit over 25 a and herbage abundance CO3p level was regarded as Ⅳ gangue hill. Dump being formed the under-ground layer dug up and stacked in the course of mining was regarded asVgangue hill.The results show that every typical abandoned place can plant vegetable.
其他文献
Steeply dipping seam group, which has complex occurrence conditions, belongs to the steeply dipping seam. The research on the strata movement around the coalface not only improves safe production technology in practice, but also develops the mining theory
The coal-gas existing condition was ameliorated in the coal seams prone to coal-gas outburst adopting the mining method of protective strata. The gas volume and the gas pressure were reduced synchronously in the protected coal seam, and the coal seam of h
The existing hydraulic system always have problems of temperature rise, run-ning stability and anti-interference of the implementation components, reliability of hydrau-lic components, maintenance difficulties, and other issues. With high efficiency, ener
Combined with the 3D FEM, end-anchored anchorage bolts were simulated by implicit anchorage bolt element. Implicit anchorage bolt elements hide in the elements of rock mass and extremely simplify the element subdivision. The calculated value of an-chorage
An adaptive PBC strategy for SM with a time-varying load torque to track flux and speed trajectories was proposed. The key point of this method was the identification of terms, known as workless forces, which appeared in the dynamic equations of SM but ha
Discussed advantages of improved Monte-Carlo method and feasibility aboutproposed approach applying in reliability analysis for tunnel surrounding rock stability. Onthe basis of deterministic parsing for tunnel surrounding rock, reliability computing meth
Based on simulated material scale modeling and numerical simulation,the pro-tective seam mining method was conducted at one coal mine.After extracting the No.15 seam,the overlying strata movement and the deformation of the No.9-10 protected seam were stud
According to the current problems of safety management processes in coal mine enterprises, we introduced barrel theory to coal mine safety management, con-structed the closed-loop structure of a coal mine safety management system, and pointed out that eff
Presented measurement results of roof rocks and wall rock movements of un-derground development workings after their drifting. The research was carried out in thecoal mine workings with standing-and-roof bolting support. There were various density ofthe s
Measured to control serious coal-gas outburst in coal seam were analyzed by theory and experimented in test site. A new technique to distress the coal-bed and drain methane, called hydraulic slotting, was described in detail, and the mechanism of hydrau-l