CN109778825B - Strip mine inner drainage reconstruction water-resisting layer boundary stitching method - Google Patents
Strip mine inner drainage reconstruction water-resisting layer boundary stitching method Download PDFInfo
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- CN109778825B CN109778825B CN201910020658.1A CN201910020658A CN109778825B CN 109778825 B CN109778825 B CN 109778825B CN 201910020658 A CN201910020658 A CN 201910020658A CN 109778825 B CN109778825 B CN 109778825B
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Abstract
The invention discloses a boundary stitching method for an inner drainage reconstruction water-resisting layer of a strip mine, wherein a reconstruction stratum is paved on an inner drainage field, and the position of the reconstruction stratum corresponds to the position of an original stratum; an unclosed water-resisting interface is formed at the junction of the original water-resisting layer and the reconstructed water-resisting layer, and horizontal cutting grooves are respectively formed in the upper interface and the lower interface of the original water-resisting layer; laying anti-seepage geotextiles at the upper end and the lower end of the non-closed water-resisting interface respectively; injecting charged impermeable slurry at one side of the non-closed water-stop interface, and then inserting a same-polarity electrode bar at the same side of the non-closed water-stop interface to drive the charged impermeable slurry to seep towards the non-closed water-stop interface. The invention carries out waterproof stitching on the water-resisting layer of the reconstructed stratum and the water-resisting layer of the original stratum at the lap joint boundary, blocks the way of losing water resources in the aquifer, can ensure that the aquifer in the original stratum supplies the aquifer in the reconstructed stratum, has good effect, low application cost and good ecological effect, and has popularization value.
Description
Technical Field
The invention relates to a stitching method, in particular to a strip mine inner drainage reconstruction water-resisting layer boundary stitching method.
Background
In the process of surface mining, with the continuous formation of an inner dumping field, stratum reconstruction and reclamation are needed to be carried out on the dumping field in the range related to the root system of vegetation. The water-resisting layer in the reconstructed stratum is overlapped with the water-resisting layer in the original stratum, and the water resource in the upper water-containing layer of the reconstructed stratum can be lost along the seam due to the non-closed contact surface at the overlapping position. Due to the existence of seepage cracks, the aquifer in the reconstructed stratum cannot be transversely supplemented with the water resource in the original stratum, so that the ecological self-repairing capability is reduced; and the atmospheric precipitation and other longitudinal make-up water sources can also run off from the gap of the interface, thus not only causing the waste of water resources, but also reducing the survival rate of the reclaimed vegetation.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a boundary stitching method for an inner drainage reconstruction water-resisting layer of a strip mine, which can carry out waterproof stitching on the water-resisting layer of a reconstruction stratum and the water-resisting layer of an original stratum at a lap joint boundary, block the loss way of water resources in a water-containing layer, make the water-containing layer in the original stratum supply the water-containing layer in the reconstruction stratum, improve the survival rate of reclaimed vegetation and provide guarantee for ecological self-repair.
In order to achieve the purpose, the invention provides the following technical scheme: a method for suturing boundaries of an inner drainage reconstruction water-resisting layer of a strip mine comprises the steps of paving a conventional soil drainage layer, a reconstruction water-resisting layer and a reconstruction soil layer in an inner soil drainage field from bottom to top, wherein the conventional soil drainage layer, the reconstruction water-resisting layer and the reconstruction soil layer are respectively in position correspondence with the conventional stratum, the original water-resisting layer and the original; an unclosed water-resisting interface is formed at the junction of the original water-resisting layer and the reconstructed water-resisting layer, and a first horizontal cutting groove and a second horizontal cutting groove are respectively formed in the upper interface and the lower interface of the original water-resisting layer; the upper end and the lower end of the non-closed water-resisting interface are respectively paved with a first seepage-proofing geotextile and a second seepage-proofing geotextile, the inner sides of the first seepage-proofing geotextile and the second seepage-proofing geotextile extend to the reconstructed water-resisting layer, and the outer sides of the first seepage-proofing geotextile and the second seepage-proofing geotextile extend to the original water-resisting layer; injecting the charged impermeable slurry at one side of the non-closed water-stop interface, and then inserting an electrode bar with the same polarity at the same side of the non-closed water-stop interface to drive the charged impermeable slurry to seep towards the non-closed water-stop interface.
Further, the width of the first impermeable geotextile and the width of the second impermeable geotextile are 4 m.
Further, the first horizontal cutting groove and the second horizontal cutting groove horizontally cut towards one side of the original water-resisting layer along the top line and the bottom line of the unclosed water-resisting interface.
Further, the first horizontal incision groove and the second horizontal incision groove have a height of 5cm and a width of 2 m.
Furthermore, the first seepage-proof geotextile and the second seepage-proof geotextile are bonded with the reconstructed water-resisting layer and the original water-resisting layer through the bonding agent, so that the bonding is sufficient, and the water resource in the water-containing layer is effectively prevented from losing along the seam.
Furthermore, the non-closed waterproof interface position is crushed and stirred by using loosening equipment in the laying process, so that the interface of the backfill reconstruction waterproof layer material and the original waterproof layer is fuzzified, the fuzzification is favorable for expanding the seepage area of the seepage-proof slurry, and the bonding area of the charged seepage-proof slurry is increased.
Compared with the prior art, the reconstructed stratum corresponds to the original stratum layer, the waterproof seam is carried out on the waterproof layer of the reconstructed stratum and the waterproof layer of the original stratum at the lap joint boundary, the waterproof seam is used for recovering the stratum structure, blocking the loss way of water resources in the aquifer, and enabling the aquifer in the original stratum to supply the aquifer in the reconstructed stratum, so that the method has the advantages of good effect, low application cost, good ecological effect and popularization value.
Drawings
FIG. 1 is a schematic structural view of the present invention;
3 FIG. 3 2 3 is 3 a 3 cross 3- 3 sectional 3 view 3 taken 3 along 3 line 3 A 3- 3 A 3 of 3 FIG. 3 1 3; 3
FIG. 3 is a detailed view of the seam at the top lap joint of the reconstituted and original water barriers;
FIG. 4 is a detailed view of the stitching at the bottom lap joint of the reconstituted and original water barriers;
FIG. 5 is a detailed view of the stitching at the interface of the reconstituted and original water barriers;
FIG. 6 is a schematic representation of formation reconstruction after treatment with the present invention;
in the figure: 1. the anti-seepage soil comprises an original soil layer, 2 a reconstructed soil layer, 3 an original water-bearing layer, 4 a reconstructed water-bearing layer, 5 an original water-bearing layer, 6 a reconstructed water-bearing layer, 7 a first horizontal cutting groove, 8 a second horizontal cutting groove, 9 an unclosed water-bearing interface, 10 a conventional soil drainage layer, 11 a conventional stratum, 12 a first anti-seepage geotextile, 13 a second anti-seepage geotextile, 14 an electrode rod, 15 and a charged anti-seepage slurry.
Detailed Description
The invention will be further explained with reference to the drawings.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 to 4, the present invention provides a technical solution: laying a reconstructed stratum in an internal dump, wherein the thickness of the compacted reconstructed stratum is the same as that of the original stratum, and the reconstructed stratum is sequentially laid with a conventional drainage layer 10, a reconstructed water-resisting layer 6, a reconstructed water-bearing layer 4 and a reconstructed soil layer 2 from bottom to top, and respectively corresponds to the layers of the conventional stratum 11, the original water-resisting layer 5, the original water-bearing layer 3 and the original soil layer 1; an unclosed water-resisting interface 9 is formed at the junction of the original water-resisting layer 5 and the reconstructed water-resisting layer 6, and a first horizontal cutting groove 7 and a second horizontal cutting groove 8 are respectively formed in the upper interface and the lower interface of the original water-resisting layer 5; the upper end and the lower end of the non-closed water-resisting interface 9 are respectively paved with a first seepage-proof geotextile 12 and a second seepage-proof geotextile 13, the central lines of the first seepage-proof geotextile 12 and the second seepage-proof geotextile 13 are respectively superposed with the top line and the bottom line of the non-closed water-resisting interface 9, the inner sides of the first seepage-proof geotextile 12 and the second seepage-proof geotextile 13 extend to the reconstruction water-resisting layer 6, and the outer sides of the first seepage-proof geotextile 12 and the second seepage-proof geotextile 13 extend to the original water-resisting layer 5; as shown in fig. 5 and 6, the charged impermeable paste 15 is injected into one side of the non-closed water-stop interface 9, and then the electrode rods 14 with the same polarity are inserted into the same side of the non-closed water-stop interface 9 to drive the charged impermeable paste 15 to seep towards the non-closed water-stop interface 9 in a one-way manner for through-crack bonding, so that the reconstructed water-stop layer 6 and the original water-stop layer 5 are fully bonded and backfilled, water resource loss caused by water seepage and crack valley formation in the water-stop layer is prevented, the survival rate of the reclaimed vegetation is improved, and a guarantee is provided for ecological self.
In order to improve the seepage effect of the charged anti-seepage slurry 15, an electrode bar 14 with opposite polarity can be inserted into the other side of the non-closed water-resisting interface 9 to drive the charged anti-seepage slurry 15 to seep towards the interface in a bidirectional mode.
The first horizontal cutting groove 7 and the second horizontal cutting groove 8 are horizontally cut towards one side of the original water-resisting layer 5 along the top line and the bottom line of the unclosed water-resisting interface 9, the height of the first horizontal cutting groove 7 and the height of the second horizontal cutting groove 8 are 5cm, and the width of the first horizontal cutting groove 7 and the width of the second horizontal cutting groove 8 are 2 m; the width of the first impermeable geotextile 12 and the second impermeable geotextile 13 is 4m, the inner 2m parts of the first impermeable geotextile 12 and the second impermeable geotextile 13 extend to the reconstruction water-resisting layer 6, and the outer 2m parts of the first impermeable geotextile 12 and the second impermeable geotextile 13 extend to the original water-resisting layer 5 and are respectively embedded into the first horizontal cutting groove 7 and the second horizontal cutting groove 8.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and any minor modifications, equivalent replacements and improvements made to the above embodiment according to the technical spirit of the present invention should be included in the protection scope of the technical solution of the present invention.
Claims (6)
1. A method for suturing the boundary of an inner-drainage reconstruction water-resisting layer of a strip mine is characterized by comprising the following steps:
a conventional soil discharging layer (10), a reconstructed water-resisting layer (6), a reconstructed water-bearing layer (4) and a reconstructed soil layer (2) are laid in the internal waste dump from bottom to top and respectively correspond to the conventional stratum (11), the original water-resisting layer (5), the original water-bearing layer (3) and the original soil layer (1);
an unclosed water-resisting interface (9) is formed at the junction of the original water-resisting layer (5) and the reconstructed water-resisting layer (6), and a first horizontal cutting groove (7) and a second horizontal cutting groove (8) are respectively formed in the upper interface and the lower interface of the original water-resisting layer (5);
the upper end and the lower end of the non-closed water-resisting interface (9) are respectively paved with a first seepage-resisting geotextile (12) and a second seepage-resisting geotextile (13), the inner sides of the first seepage-resisting geotextile (12) and the second seepage-resisting geotextile (13) extend to the reconstructed water-resisting layer (6), and the outer sides of the first seepage-resisting geotextile (12) and the second seepage-resisting geotextile (13) extend to the original water-resisting layer (5);
injecting charged impermeable slurry (15) at one side of the non-closed water-stop interface (9), and then inserting an electrode bar (14) with the same polarity at the same side of the non-closed water-stop interface (9) to drive the charged impermeable slurry (15) to seep towards the non-closed water-stop interface (9).
2. The method of claim 1, wherein the step of suturing the boundary of the strip mine inner drainage reconstruction water-resisting layer comprises the following steps: the width of the first impermeable geotextile (12) and the width of the second impermeable geotextile (13) are 4 m.
3. The method of claim 1, wherein the step of suturing the boundary of the strip mine inner drainage reconstruction water-resisting layer comprises the following steps: the first horizontal cutting groove (7) and the second horizontal cutting groove (8) are horizontally cut towards one side of the original water-resisting layer (5) along the top line and the bottom line of the unclosed water-resisting interface (9).
4. The method of claim 3, wherein the step of suturing the boundary of the strip mine inner drainage reconstruction water-resisting layer comprises the following steps: the first horizontal cutting groove (7) and the second horizontal cutting groove (8) are 5cm in height and 2m in width.
5. The method of claim 1, wherein the step of suturing the boundary of the strip mine inner drainage reconstruction water-resisting layer comprises the following steps: the first seepage-proof geotextile (12) and the second seepage-proof geotextile (13) are bonded with the reconstructed waterproof layer (6) and the original waterproof layer (5) through adhesives.
6. The method of claim 1, wherein the step of suturing the boundary of the strip mine inner drainage reconstruction water-resisting layer comprises the following steps: and the position of the non-closed water-resisting interface (9) is crushed and stirred by loosening equipment in the laying process.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2771018C1 (en) * | 2021-03-17 | 2022-04-25 | Федеральное государственное автономное образовательное учреждение высшего образования "Северный (Арктический) федеральный университет имени М. В. Ломоносова" | Method for reclamation of solid household waste storage areas |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110330276B (en) * | 2019-07-09 | 2021-01-08 | 中国矿业大学 | Remolding material and method for water-resisting layer of soil discharge field in strip mine |
| CN111088788B (en) * | 2019-12-16 | 2020-11-13 | 中国矿业大学 | Method for communicating aquifers of soil dumping site in strip mine |
| CN113106988B (en) * | 2021-04-14 | 2022-01-25 | 中国矿业大学 | Internal dam body construction method for refuse dump of internal-discharge strip mine |
| CN114109389B (en) * | 2021-08-17 | 2023-12-01 | 国家能源投资集团有限责任公司 | Water-bearing layer of dumping site in strip mine and reconstruction method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102806228A (en) * | 2012-08-08 | 2012-12-05 | 重庆大学 | Contaminated soil ex-situ electrokinetic remediation device and method thereof |
| CN102817366A (en) * | 2012-08-13 | 2012-12-12 | 大同煤矿集团有限责任公司 | Prevention and treatment method for full-mechanized caving mining collapse trap area water disaster for shallow-buried ultra-thick coal seam |
| CN104264557A (en) * | 2014-08-28 | 2015-01-07 | 杭州江润科技有限公司 | Semi-filling and semi-excavating ecological subgrade structure and construction method |
| CN106013178A (en) * | 2016-05-25 | 2016-10-12 | 河北建设勘察研究院有限公司 | Filling method for karst surface collapse of shallow-buried karst area |
| CN106171116A (en) * | 2016-08-09 | 2016-12-07 | 安徽大学 | A kind of coal-mining subsidence pools zone ecological agriculture reconstructing method |
| CN106884676A (en) * | 2017-04-19 | 2017-06-23 | 中国矿业大学 | A kind of well work subsidence area administering method of neighbouring opencut |
| CN107489448A (en) * | 2017-08-30 | 2017-12-19 | 曲阜师范大学 | A kind of subsided land from coal mine Reclamation by filling method based on geotextiles |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104389606B (en) * | 2014-09-23 | 2015-09-09 | 海西博奥工程有限公司 | A kind of mine reduction-type based on environmental protection many well connection mining method |
-
2019
- 2019-01-09 CN CN201910020658.1A patent/CN109778825B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102806228A (en) * | 2012-08-08 | 2012-12-05 | 重庆大学 | Contaminated soil ex-situ electrokinetic remediation device and method thereof |
| CN102817366A (en) * | 2012-08-13 | 2012-12-12 | 大同煤矿集团有限责任公司 | Prevention and treatment method for full-mechanized caving mining collapse trap area water disaster for shallow-buried ultra-thick coal seam |
| CN104264557A (en) * | 2014-08-28 | 2015-01-07 | 杭州江润科技有限公司 | Semi-filling and semi-excavating ecological subgrade structure and construction method |
| CN106013178A (en) * | 2016-05-25 | 2016-10-12 | 河北建设勘察研究院有限公司 | Filling method for karst surface collapse of shallow-buried karst area |
| CN106171116A (en) * | 2016-08-09 | 2016-12-07 | 安徽大学 | A kind of coal-mining subsidence pools zone ecological agriculture reconstructing method |
| CN106884676A (en) * | 2017-04-19 | 2017-06-23 | 中国矿业大学 | A kind of well work subsidence area administering method of neighbouring opencut |
| CN107489448A (en) * | 2017-08-30 | 2017-12-19 | 曲阜师范大学 | A kind of subsided land from coal mine Reclamation by filling method based on geotextiles |
Non-Patent Citations (1)
| Title |
|---|
| 老鸦岭尾矿库堆石坝复合土工膜防渗及施工;胡为森;《四川水力发电》;20091031;第28卷;第93-96页 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2771018C1 (en) * | 2021-03-17 | 2022-04-25 | Федеральное государственное автономное образовательное учреждение высшего образования "Северный (Арктический) федеральный университет имени М. В. Ломоносова" | Method for reclamation of solid household waste storage areas |
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