SU1661423A1 - Method for determining thickness of the zone of water conducting joints in extracting coal seam under a water reservoir - Google Patents
Method for determining thickness of the zone of water conducting joints in extracting coal seam under a water reservoir Download PDFInfo
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- SU1661423A1 SU1661423A1 SU884418481A SU4418481A SU1661423A1 SU 1661423 A1 SU1661423 A1 SU 1661423A1 SU 884418481 A SU884418481 A SU 884418481A SU 4418481 A SU4418481 A SU 4418481A SU 1661423 A1 SU1661423 A1 SU 1661423A1
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Abstract
Изобретение относитс к горной пром-сти. Цель изобретени - повышение точности и достоверности определени мощности зоны водопровод щих трещин (ВТ). Провод т верхнюю и нижнюю бортовые выработки (В) и нанос т их на план горных работ. Отработку пласта производ т с изменением рассто ни от лавы до водного объекта (ВО). По мере подвигани лавы формируютс зона ВТ и зона вскрыти ВО. В нижней В регистрируют приток воды. По завершении формировани участка водопро влений с кровли нижней В нанос т его крайние точки на план горных работ. Затем трассируют от них линии тока воды в направлении восстани пласта. По лини м тока определ ют положение зоны вскрыти ВО и ее крайней точки, наиболее удаленной от пласта. Из верхней В бур т контрольную скважину в указанную точку и по рассто нию от почвы пласта до нее определ ют мощность зоны ВТ. 3 ил.The invention relates to the mining industry. The purpose of the invention is to improve the accuracy and reliability of the determination of the thickness of the water conducting cracks (W). The upper and lower side workings (B) are conducted and applied to the mine plan. Reservoir mining is carried out with a change in the distance from the lava to the water body (VO). As lava moves, the HT zone and the VO opening zone are formed. In the lower In register the flow of water. Upon completion of the formation of the water supply area from the roof of the lower B, its extreme points are put on the mine plan. Then, water flow lines are traced from them in the direction of the reservoir uprising. The current line determines the position of the VO opening zone and its extreme point furthest from the formation. From the upper B a test well is drilled to the indicated point and by the distance from the soil of the reservoir to it determine the thickness of the BT zone. 3 il.
Description
Изобретение относитс к горной промышленности и предназначено дл определени мощности зоны водопровод щих трещин при выемке угольных пластов под водными объектами.The invention relates to the mining industry and is intended to determine the thickness of a zone of water conducting cracks when excavating coal seams under water bodies.
Целью изобретени вл етс повышение точности и достоверности определени мощности зоны водопровод щих трещин.The aim of the invention is to improve the accuracy and reliability of determining the thickness of the zone of water-conducting cracks.
На фиг.1 показано положение контура зоны вскрыти водного объекта относительно выработанного пространства лавы, план; на фиг.2 - разрез А-А на фиг.1; на фиг.З - разрез Б-Б на фиг.1.Figure 1 shows the position of the contour of the zone of opening the water body relative to the developed space of the lava, plan; figure 2 - section aa in figure 1; on fig.Z - section bb in figure 1.
Способ осуществл ют следующим образом .The method is carried out as follows.
Дл определени мощности зоны водопровод щих трещин 1 выбирают лавы с из- мен ющимс в направлении 2 ееTo determine the thickness of the zone of water-conducting cracks 1, lavas with a change in the direction 2 of their
подвигани рассто нием пн от разрабатываемого пласта 3 до подрабатываемого водного объекта 4 (водоносных пород, равномерно обводненных или затопленных выработок) и с гипсометрически нижней бортовой выработкой 5, наход щейс в пределах зоны опорного давлени с наличием хрупкой деформации пород (т.е. поддерживаемой искусственным ограждением или целиком шириной до 7-10 м).spacing the mon from the reservoir 3 under development to the water body 4 being worked up (aquifers uniformly watered or flooded workings) and with a hypsometric lower side production 5 located within the reference pressure zone with the presence of brittle deformation of the rocks (i.e. supported by artificial fencing or entirely up to 7-10 m wide).
Производ т обследование нижней бортовой выработки и устанавливают участок с наличием водопро влений 6 с кровли выработки Обследование провод т до установлени окончательной длины этого участка. Затем определ ют положение в плане крайних точек участка водопро влений, дл чего измер ют рассто ние от крайних водопроО ОA survey of underside production is carried out and a section is established with the presence of water supply 6 from the roof of an excavation. The survey is carried out until the final length of this section is established. Then, the position in terms of the extreme points of the water distribution area is determined, for which the distance from the extreme water lines is measured.
Ј ю соЈ you with
влений до ближайших маркшейдерских пикетов и нанос т эти точки на план горных работ. От точек крайних водопро влений в направлении восстани пласта трассируют линии 7 тока 8 воды в расслоенных породах кровли. Между этими лини ми стро т контур 9 зоны вскрыти водного объекта. При этом со стороны разрезной выработки 10 этот контур провод т через точку 11 на восстающей линии 7 тока 8, равноудаленную от целика у разрезной выработки и искусственного ограждени или целика у нижней бортовой выработки, а на другой восстающей линии 7 тока 8-черезточку .удаленную на ту же величину (С) от целика или искусственного ограждени вдоль верхней бортовой выработки 13.to the nearest surveying pickets and put these points on the mine plan. From the points of extreme water outlets in the direction of the reservoir uprising, lines 7 of the current 8 of water in the layered roof rocks are traced. Between these lines, contour 9 of the water body opening zone is constructed. At the same time, on the side of split production 10, this circuit is conducted through point 11 on rising line 7 of current 8, equidistant from the rear sight at split production and artificial fence or rear sight at lower side production, and on the other ascending line 7 of current 8 the same value (C) from the pillar or artificial fence along the upper side of the output 13.
Точка 12 вл етс крайней точкой зоны вскрыти водного объекта, наиболее удаленной от пласта. Затем из верхней борто- вой выработки бур т в указанную точку 12 восстающую контрольную скважину и определ ют рассто ние до точки 12 от почвы угольного пласта Нт , т.е. мощность зоны водо про вод щих трещин.Point 12 is the extreme point of the water body opening zone farthest from the formation. Then, a rising test well is drilled to the indicated point 12 from the upper side production and the distance to the point 12 from the soil of the coal bed Nt is determined, i.e. thickness of the zone of water conducting cracks.
При попадании скважины не точно в указанную точку проводитс геометрический пересчет искомой величины. При горизонтальном залегании подошвы водного объекта контрольна скважина может быть пробурена и вертикально вверх, а при малых глубинах разработки также и с поверхности земли с последующим расчетом искомой величины из разности абсолютных отметок почвы угольного пласта и подошвы водного объекта.When a well does not hit exactly the specified point, a geometric recalculation of the desired value is performed. With the horizontal bedding of the water body, the test well can be drilled and vertically upwards, and at shallow depths of development, also from the ground, with the subsequent calculation of the desired value from the difference between the absolute elevations of the coal seam soil and the water body sole.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU884418481A SU1661423A1 (en) | 1988-05-03 | 1988-05-03 | Method for determining thickness of the zone of water conducting joints in extracting coal seam under a water reservoir |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU884418481A SU1661423A1 (en) | 1988-05-03 | 1988-05-03 | Method for determining thickness of the zone of water conducting joints in extracting coal seam under a water reservoir |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU1661423A1 true SU1661423A1 (en) | 1991-07-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU884418481A SU1661423A1 (en) | 1988-05-03 | 1988-05-03 | Method for determining thickness of the zone of water conducting joints in extracting coal seam under a water reservoir |
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| SU (1) | SU1661423A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103184871A (en) * | 2013-03-15 | 2013-07-03 | 陕西煤业化工技术研究院有限责任公司 | Coal pillar setting and extracting method for protecting important water body |
| CN111963173A (en) * | 2020-03-16 | 2020-11-20 | 济宁矿业集团有限公司安居煤矿 | Construction method for advancing fault crossing during crossheading of coal mine |
| CN114086955A (en) * | 2020-08-24 | 2022-02-25 | 神华神东煤炭集团有限责任公司 | Water-retention mining method for shallow coal seam and application thereof |
-
1988
- 1988-05-03 SU SU884418481A patent/SU1661423A1/en active
Non-Patent Citations (1)
| Title |
|---|
| Методические рекомендации по изучению условий формировани и прогнозированию притоков воды в очистные выработки при выемке угольных пластов лавами по падению. - М.. ИГД им. А.А.Скочинского, 1981. с.24-27. * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103184871A (en) * | 2013-03-15 | 2013-07-03 | 陕西煤业化工技术研究院有限责任公司 | Coal pillar setting and extracting method for protecting important water body |
| CN103184871B (en) * | 2013-03-15 | 2014-12-10 | 陕西煤业化工技术研究院有限责任公司 | Coal pillar setting and extracting method for protecting important water body |
| CN111963173A (en) * | 2020-03-16 | 2020-11-20 | 济宁矿业集团有限公司安居煤矿 | Construction method for advancing fault crossing during crossheading of coal mine |
| CN114086955A (en) * | 2020-08-24 | 2022-02-25 | 神华神东煤炭集团有限责任公司 | Water-retention mining method for shallow coal seam and application thereof |
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