Mining method involving sliding block of overburden on gel lubricant
阅读：992发布：2022-12-23
专利汇可以提供Mining method involving sliding block of overburden on gel lubricant专利检索，专利查询，专利分析的服务。并且A method for exposing sedimentary mineral deposits, such as coal, by shifting massive, unbroken blocks of overburden on a Bingham plastic lubricant film, such as a clay-water paste, wherein, the overburden blocks are severed on vertical planes, by trenching and/or fracturing and severed along a basal plane, above the mineral deposit, by hydraulic fracturing or undercutting, and a lubricant is injected along said basal plane; the overburden blocks are shifted into a space, created in front of said blocks, by excavation or by previously shifted blocks, from which space the mineral deposit has been removed and in which space a ramp of fill, lubricated with Bingham plastic material, has been prepared over which the overburden blocks will move, by impelling the overburden blocks down slope, by gravity, or by a hydrostatic load of mud dammed up behind said overburden blocks; and, following the shifting of blocks in a first row, the operation is continued by removal of the mineral deposit exposed behind the shifted row of blocks, severing and lubricating a next row of blocks, preparing new earthern ramps and shifting the newly formed blocks.，下面是Mining method involving sliding block of overburden on gel lubricant专利的具体信息内容。
1. A method of moving a massive, substantially unbroken block of earth overburden to expose a portion of a subsurface formation beneath said overburden; comprising, separating said massive, substantially unbroken block of overburden from the adjacent overburden with which it initially forms a unitary mass, along generally-vertical planes and along a generally-horizontal, base plane adjacent the top of said subsurface formation; disposing a thin layer of a high gel strength lubricant paste beneath said block of overburden in the plane of separation along said generally-horizontal base plane; and sliding said substantially unbroken block of overburden on said layer of lubricant paste in a direction and for a distance sufficient to expose said portion of said subsurface formation.
2. A method in accordance with claim 1 wherein the base plane generally follows a bedding plane near the top of the subsurface formation.
3. A method in accordance with claim 2 wherein the bedding and base plane dip downward in the proposed direction of the overburden block movement.
4. A method in accordance with claim 1 wherein the subsurface earth formation is a mineral deposit.
5. A method in accordance with claim 1 wherein the mineral deposit is a coal deposit.
6. A method in accordance with claim 1 wherein the block of overburden is separated from the adjacent overburden by trenching so as to deliniate the block at least part way down to the top of the subsurface formation.
7. A method in accordance with claim 6 wherein the trenching extends from the surface of the earth to the top of the subsurface formation.
8. A method in accordance with claim 6 wherein the trenching extends from the surface of the earth to a point part way to the top of the subsurface formation and the separation is extended to said top of said subsurface formation by discharging an explosive.
9. A method in accordance with claim 8 wherein the explosive is disposed in at least one hole drilled from the bottom of the trench to the top of the subsurface formation.
10. A method in accordance with claim 6 wherein the trenching extends from the surface of the earth to a point part way to the top of the subsurface formation and the separation is extended to said top of said subsurface formation by hydraulic fracturing.
11. A method in accordance with claim 10 wherein at least one hole is drilled from the bottom of the trench to the top of the subsurface formation and a hydraulic fracturing fluid is pumped into said hole.
12. A method in accordance with claim 1 wherein the block of overburden is separated from the adjacent overburden by cutting along a line along which the separation is to be made to a point at least part way to the base plane.
13. A method in accordance with claim 12 wherein the cutting is performed by a mechanical cutting apparatus.
14. A method in accordance with claim 12 wherein the cutting extends from the surface of the earth to the base plane.
15. A method in accordance with claim 12 wherein the cutting extends from the surface of the earth to a point part way to the base plane and the separation is extended to said top of said base plane by discharging an explosive.
16. A method in accordance with claim 15 wherein the explosive is disposed in at least one hole drilled in the same plane as the cut to the base plane.
17. A method in accordance with claim 12 wherein the cutting extends from the surface of the earth to a point part way to the base plane and the cut is extended to said base plane by hydraulic fracturing.
18. A method in accordance with claim 17 wherein at least one hole is drilled in the same plane as the cut to the base plane and a hydraulic fracturing fluid is pumped into said hole.
19. A method in accordance with claim 1 wherein the block of overburden is separated from the adjacent overburden by the discharge of an explosive.
20. A method in accordance with claim 19 wherein at least one hole is drilled on the line along which the separation is to be made and the explosive is discharged in said hole.
21. A method in accordance with claim 20 wherein the hole is notched in the direction of the line of separation prior to discharging the explosive.
22. A method in accordance with claim 1 wherein the block of overburden is separated from the adjacent overburden by hydraulic fracturing.
23. A method in accordance with claim 22 wherein at least one hole is drilled on the line along which the separation is to be made and a hydraulic fracturing fluid is pumped into said hole.
24. A method in accordance with claim 23 wherein the hole is notched in the direction of the line of separation prior to pumping of the fracturing fluid.
25. A method in accordance with claim 1 wherein the block of overburden is separated along the base plane by cutting a slot at least part way along said base plane.
26. A method in accordance with claim 25 wherein the cutting is performed by a mechanical cutting apparatus.
27. A method in accordance with claim 25 wherein the cutting extends part way along the base plane and the separation is extended along said base plane by hydraulic fracturing.
28. A method in accordance with claim 25 wherein the slot is cut along the base plane at a downward inclination toward the proposed direction of block movement.
29. A method in accordance with claim 1 wherein the block of overburden is separated along the base plane by hydraulic fracturing.
30. A method in accordance with claim 29 wherein at least one hole is drilled through the block of overburden from the surface of the earth to the base plane and a fluid is pumped into said hole with pressure sufficient to produce hydraulic fracturing at the bottom of said hole.
31. A method in accordance with claim 29 wherein the hole is notched in the base plane prior to pumping the fracturing fluid.
32. A method in accordance with claim 29 wherein the lubricant is pumped into the hole after the fracturing fluid.
33. A method in accordance with claim 32 wherein the lubricant is a clay-water mixture.
34. A method in accordance with claim 32 wherein the lubricant has the characteristics of a Bingham plastic.
35. A method in accordance with claim 32 wherein the viscosity of the fracturing fluid is less than the viscosity of the lubricant.
36. A method in accordance with claim 35 wherein the viscosity of the fracturing fluid is gradually increased until the viscosity of the lubricant is reached.
37. A method in accordance with claim 36 wherein both the fracturing fluid and the lubricant are clay-water mixtures.
38. A method in accordance with claim 29 wherein the base plane coincides with a natural formation bedding plane adjacent the top of the subsurface formation.
39. A method in accordance with claim 1 wherein the lubricant is injected into the separation along the base plane.
40. A method in accordance with claim 1 wherein the lubricant is a clay-water mixture.
41. A method in accordance with claim 1 wherein the lubricant has the characteristics of a Bingham plastic.
42. A method in accordance with claim 1 wherein the block of overburden is slidably moved into an excavation adjacent said block of overburden. 43. A method in accordance with claim 42 wherein the excavation is formed prior to the movement of the first block of overburden.
44. A method in accordance with claim 42 wherein the excavation is formed by the previous movement of a block of overburden and the removal of the subsurface formation beneath said previously moved block of overburden.
45. A method in accordance with claim 42 wherein an inclined ramp is formed from the front of the block of overburden, with respect to the direction of movement, downwardly toward the floor of the excavation.
46. A method in accordance with claim 45 wherein the ramp has an inclination greater than the inclination of the base plane.
47. A method in accordance with claim 45 wherein the inclination of the ramp increases with distance from the overburden block.
48. A method in accordance with claim 45 wherein the ramp is composed of earth fill.
49. A method in accordance with claim 45 wherein lubricant is disposed on top of the ramp adjacent the block of overburden.
50. A method in accordance with claim 1 wherein the block of overburden is moved by introducing a body of liquid behind the block of overburden, with respect to the direction of movement.
51. A method in accordance with claim 50 wherein the head of liquid is maintained at the level required to complete the movement of the block of overburden.
52. A method in accordance with claim 50 wherein at least one dam is formed along at least one side of the block of overburden to retain the body of liquid behind said block of overburden.
53. A method in accordance with claim 52 wherein the dam is formed from loose fill.
54. A method in accordance with claim 52 wherein the dam is formed from lubricant.
55. A method in accordance with claim 50 wherein the body of liquid is a body of water.
56. A method in accordance with claim 50 wherein the body of liquid is a body of clay-water mixture.
| 标题 | 发布/更新时间 | 阅读量 |
|---|---|---|
| 一种尾矿回水清淤系统及其清淤方法 | 2020-05-12 | 235 |
| 一种基于时间分辨荧光光谱确定石油包裹体成藏关键时刻的装置及方法 | 2020-05-12 | 412 |
| 一种碱激发废弃渣土免烧砖及其制备方法 | 2020-05-08 | 750 |
| 一种用于输电塔的复合基础 | 2020-05-12 | 617 |
| 一种分区分层连续采矿方法 | 2020-05-11 | 164 |
| 一种钢铁企业含锌固体废料的综合处置装置及方法 | 2020-05-11 | 152 |
| 一种黄桃的种植方法 | 2020-05-12 | 812 |
| 基于工程屏障多级时序阻控的治理酸性矿山废水方法 | 2020-05-11 | 781 |
| 一种用于矿山挖掘机的空气过滤装置 | 2020-05-08 | 340 |
| 一种新型挖矿齿头 | 2020-05-11 | 152 |
高效检索全球专利专利汇是专利免费检索,专利查询,专利分析-国家发明专利查询检索分析平台，是提供专利分析，专利查询，专利检索等数据服务功能的知识产权数据服务商。
我们的产品包含105个国家的1.26亿组数据，免费查、免费专利分析。
分析报告
专利汇分析报告产品可以对行业情报数据进行梳理分析，涉及维度包括行业专利基本状况分析、地域分析、技术分析、发明人分析、申请人分析、专利权人分析、失效分析、核心专利分析、法律分析、研发重点分析、企业专利处境分析、技术处境分析、专利寿命分析、企业定位分析、引证分析等超过60个分析角度，系统通过AI智能系统对图表进行解读，只需1分钟，一键生成行业专利分析报告。
QQ群二维码
意见反馈
意见反馈