CN113106924A - Slope top anchoring method for side slope seepage-proofing waterproof blanket - Google Patents
Slope top anchoring method for side slope seepage-proofing waterproof blanket Download PDFInfo
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- CN113106924A CN113106924A CN202110446199.0A CN202110446199A CN113106924A CN 113106924 A CN113106924 A CN 113106924A CN 202110446199 A CN202110446199 A CN 202110446199A CN 113106924 A CN113106924 A CN 113106924A
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- groove
- waterproof blanket
- anchoring
- slope
- concrete
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- 238000004873 anchoring Methods 0.000 title claims abstract description 73
- 238000000034 method Methods 0.000 title claims abstract description 17
- 239000004567 concrete Substances 0.000 claims abstract description 36
- 239000004575 stone Substances 0.000 claims abstract description 10
- 239000011083 cement mortar Substances 0.000 claims abstract description 8
- 239000002689 soil Substances 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 229910000278 bentonite Inorganic materials 0.000 claims description 3
- 239000000440 bentonite Substances 0.000 claims description 3
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 3
- 239000004576 sand Substances 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 4
- 239000011178 precast concrete Substances 0.000 abstract description 3
- 230000005484 gravity Effects 0.000 abstract description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
- E02B3/12—Revetment of banks, dams, watercourses, or the like, e.g. the sea-floor
- E02B3/122—Flexible prefabricated covering elements, e.g. mats, strips
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/74—Means for anchoring structural elements or bulkheads
- E02D5/76—Anchorings for bulkheads or sections thereof in as much as specially adapted therefor
- E02D5/765—Anchorings for bulkheads or sections thereof in as much as specially adapted therefor removable
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Environmental & Geological Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Mechanical Engineering (AREA)
- Revetment (AREA)
Abstract
The invention discloses a slope top anchoring method of a waterproof blanket for preventing seepage of a side slope, which is characterized in that a precast concrete anchoring groove is placed at a proper position on the top of the side slope, the waterproof blanket is continuously paved along the inner wall of the groove and the allowance is reserved to meet the requirement of deformation and stretching, the tail end of the waterproof blanket is fixed on the rear wall of the groove by a fastener, then the inner space of the groove is filled with fine stone concrete or cement mortar, and an anchoring part is formed after the waterproof blanket is hardened. The waterproof blanket has a downward sliding trend under the action of gravity, the waterproof blanket in the groove is tensioned along the inner wall of the groove, the anchoring part is lifted upwards, the lifting is limited by the slope surface at the moment, and then the waterproof blanket is reliably anchored. The invention has the advantages of simple structure, convenient construction, strong applicability, less investment, safety guarantee and the like.
Description
Technical Field
The invention discloses a waterproof blanket anchoring method, in particular to a slope top anchoring method of a waterproof blanket for preventing seepage of a side slope.
Background
When the slope type revetment adopts the waterproof blanket for seepage prevention, the traditional anchoring ditch adopts a deeply dug rectangular ditch, and the edge of the waterproof blanket is turned into the anchoring ditch dug in advance and is ensured to be completely extended to the bottom of the anchoring ditch. And backfilling and tamping the soil in the ditch, and fixing the waterproof blanket by the backfilling weight. The anchoring trench is typically more than 1m from the slope edge, and the bottom of the anchoring trench is typically required to exceed the normal water line by more than 2 m. In order to provide sufficient pressure, the depth of the anchoring groove needs to be 300-600 mm. The backfill soil should not contain angular stones, the requirements on the grain diameter and the uniformity of the backfill soil are strict, and the requirement on the compaction degree is high. Before laying the waterproof blanket, the side wall and the bottom sharp corner stones of the anchoring ditch must be removed, and loose soil in the ditch is removed. The traditional anchoring ditch has the defects of inconvenient construction, large using amount of waterproof blankets and the like. Meanwhile, the anchoring ditch is positioned at the top of the bank slope and is influenced by pedestrian and traffic, and the deformation of the soil body of the anchoring ditch causes the failure of anchoring.
Disclosure of Invention
The invention aims to solve the technical problem of providing a slope top anchoring method of a waterproof blanket for preventing seepage of a side slope, which is economic and reliable, simple in structure, convenient to construct, strong in applicability, investment-saving and safe.
In order to solve the technical problems, the invention adopts the technical scheme that: a slope top anchoring method for a side slope seepage-proofing waterproof blanket comprises the following steps:
prefabricating a concrete anchoring groove, wherein the concrete anchoring groove is cuboid in shape and internally provided with a groove, the cross section of the groove is provided with an opening at the top, an enlarged head is arranged at the bottom, and the cross section of the concrete anchoring groove is 400-500 mm wide and 300-400 mm high;
step two, excavating a groove at the top of the slope along the trend of the slope according to the design position, placing the concrete anchoring groove in the excavated groove, and installing the concrete anchoring groove in place, wherein the top of the concrete anchoring groove is level to the top surface of the foundation sand cushion layer of the waterproof blanket to be paved;
thirdly, laying a waterproof blanket along the inner wall of the groove of the concrete anchoring groove, wherein one end of the waterproof blanket extends to the upper surface of one end of the concrete anchoring groove far away from the side slope, the tail end of the waterproof blanket is fixed on the upper surface of the concrete anchoring groove by adopting a fastener, and the other end of the waterproof blanket is a to-be-laid end;
and step four, pouring fine stone concrete or cement mortar in the groove of the concrete anchoring groove, densely filling the fine stone concrete or the cement mortar to form an anchoring block, and paving the other end of the slope waterproof blanket after the anchoring block reaches the design strength.
The waterproof blanket is continuously and virtually laid for a circle along the inner wall of the groove, a margin meeting the tensile deformation is reserved, one end of the waterproof blanket is fixed, the other end of the waterproof blanket is free, and the waterproof blanket is completely attached to the inner wall of the groove when the anchoring block is poured.
The cross section of the groove is in a shape that the top end opening is small, the bottom end opening is large, and the middle is connected through an inclined plane.
The top surface of the groove is 200-300 mm higher than the normal water level, the depth of the overlying soil is at least 300mm, and the distance from the edge of the slope is 0.5-1.0 m.
And a gasket is arranged between the fastener and the waterproof blanket.
The waterproof blanket is a bentonite waterproof blanket.
The invention has the beneficial effects that: aiming at the situation that the waterproof blanket is used for preventing seepage of a side slope, the novel anchoring method is provided, and the novel anchoring method has the advantages of simple structure, convenience in construction, strong applicability, less investment, safety guarantee and the like.
Drawings
Fig. 1 is a slope type ecological bank protection diagram of a slope top anchoring method of the waterproof blanket for side slope seepage prevention according to the invention.
Fig. 2 is a sectional view of the waterproof blanket anchoring structure of fig. 1.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1-2, the slope top anchoring method of the waterproof blanket for side slope seepage control of the present invention comprises the following steps:
prefabricating a concrete anchoring groove 1, wherein the concrete anchoring groove 1 is cuboid in shape, a groove 6 is formed in the groove 1, the cross section of the groove 6 is provided with an opening at the top, an enlarged head is arranged at the bottom, and the cross section of the concrete anchoring groove 1 is 400-500 mm wide and 300-400 mm high;
step two, excavating a groove at the top of the slope along the trend of the slope according to the design position, placing the concrete anchoring groove 1 in the excavated groove to be installed in place, and enabling the top of the concrete anchoring groove to be level with the top surface of the foundation sand cushion layer of the waterproof blanket to be paved;
thirdly, laying a waterproof blanket 2 along the inner wall of the groove of the concrete anchoring groove 1, wherein one end of the waterproof blanket 2 extends to the upper surface of one end of the concrete anchoring groove 1 far away from the side slope, the tail end of the waterproof blanket 2 is fixed on the upper surface of the concrete anchoring groove 1 by a fastener 5, and the other end of the waterproof blanket 2 is a to-be-laid end;
and step four, pouring fine stone concrete or cement mortar in the groove of the concrete anchoring groove 1, densely filling the fine stone concrete or the cement mortar to form an anchoring block 3, and paving the other end of the slope waterproof blanket 2 after the anchoring block 3 reaches the design strength.
The waterproof blanket 2 is continuously and virtually laid for a circle along the inner wall of the groove 6, a margin meeting the tensile deformation is reserved, one end of the waterproof blanket is fixed, the other end of the waterproof blanket is free, and the waterproof blanket is completely attached to the inner wall of the groove when the anchoring block 3 is poured.
The cross section of the groove 6 is in a shape that the top end opening is small, the bottom end opening is large, and the middle is connected through an inclined plane.
The top surface of the groove 6 is higher than the normal water level by 200-300 mm, the depth of the overlying soil is at least 300mm, and the distance from the edge of the slope is 0.5-1.0 m.
A gasket 4 is arranged between the fastener 5 and the waterproof blanket 2.
Preferably, the waterproof blanket 2 is a bentonite waterproof blanket.
The top opening of the groove is reduced, and the slope contact surface is arranged, so that the waterproof blanket is limited by the extrusion of the slope contact surface when the waterproof blanket has a stretching tendency in the groove. The waterproof blanket is continuously and virtually laid for a circle along the inner wall of the groove, a margin meeting the tensile deformation is reserved, the edge of the tail end of the waterproof blanket is fixed, the other end of the waterproof blanket is free, and the waterproof blanket is enabled to be completely attached to the inner wall of the groove when the anchoring block is poured. The anchor block fills the cavity inside the precast concrete groove to ensure the waterproof blanket to be compressed.
The waterproof blanket is a novel, environment-friendly and ecological impermeable material. The self-healing water tank has the advantages of strong self-healing property, good adaptability, inexhaustible exchange between the cut-off water tank and underground water and the like, and has strong advantages in solving the problem of infiltration at the bottom and both banks of artificial lakes and landscape water tanks. The invention places a precast concrete anchoring groove at a proper position on the top of the side slope, continuously lays a waterproof blanket along the inner wall of the groove and reserves a margin to meet the requirement of deformation and stretching, adopts a fastener to fix the tail end of the waterproof blanket on the rear wall of the groove, then uses fine stone concrete (or cement mortar) to fill the inner space of the groove, and forms an anchoring part after the waterproof blanket is hardened. The waterproof blanket has a downward sliding trend under the action of gravity, the waterproof blanket in the groove is tensioned along the inner wall of the groove, the anchoring part is lifted upwards, the lifting is limited by the slope surface at the moment, and then the waterproof blanket is reliably anchored. The invention has the advantages of simple structure, convenient construction, strong applicability, less investment, safety guarantee and the like.
The above-mentioned embodiments are only for illustrating the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to carry out the same, and the present invention shall not be limited to the embodiments, i.e. the equivalent changes or modifications made within the spirit of the present invention shall fall within the scope of the present invention.
Claims (6)
1. A slope top anchoring method for a side slope seepage-proofing waterproof blanket is characterized by comprising the following steps:
prefabricating a concrete anchoring groove (1), wherein the concrete anchoring groove (1) is cuboid in shape, a groove (6) is formed in the groove, the cross section of the groove (6) is open at the top, an enlarged head is arranged at the bottom, and the cross section of the concrete anchoring groove (1) is 400-500 mm wide and 300-400 mm high;
step two, excavating a groove at the top of the slope along the trend of the side slope according to the design position, placing the concrete anchoring groove (1) in the excavated groove to be installed in place, and enabling the top of the concrete anchoring groove to be level to the top surface of the foundation sand cushion layer of the waterproof blanket to be paved;
thirdly, laying a waterproof blanket (2) along the inner wall of the groove of the concrete anchoring groove (1), wherein one end of the waterproof blanket (2) extends to the upper surface of one end of the concrete anchoring groove (1) far away from the side slope, the tail end of the waterproof blanket (2) is fixed on the upper surface of the concrete anchoring groove (1) by a fastener (5), and the other end of the waterproof blanket (2) is a to-be-laid end;
pouring fine stone concrete or cement mortar in the groove of the concrete anchoring groove (1), densely filling the fine stone concrete or the cement mortar to form an anchoring block (3), and paving the other end of the slope waterproof blanket (2) after the anchoring block (3) reaches the designed strength.
2. The slope top anchoring method of the waterproof blanket for seepage control of the side slope according to claim 1, wherein the waterproof blanket (2) is continuously and virtually laid for a circle along the inner wall of the groove (6), a margin meeting the tensile deformation is reserved, one end is fixed, the other end is free, and the waterproof blanket is ensured to be completely attached to the inner wall of the groove when the anchoring block (3) is poured.
3. The slope top anchoring method for a waterproof blanket for seepage control of a side slope according to claim 1, wherein the cross section of the groove (6) is in a shape that the top end opening is small, the bottom end opening is large, and the middle is connected through an inclined plane.
4. The slope top anchoring method of the waterproof blanket for seepage control of the side slope according to claim 1, wherein the top surface of the groove (6) is 200-300 mm higher than the normal water level, the depth of the overlying soil is at least 300mm, and the distance from the edge of the slope is 0.5-1.0 m.
5. The method for slope top anchoring of a waterproof blanket for slope seepage control according to claim 1, characterized in that a gasket (4) is arranged between the fastener (5) and the waterproof blanket (2).
6. The method for slope top anchoring of a waterproof blanket for slope seepage control according to any one of claims 1 to 5, wherein the waterproof blanket (2) is a bentonite waterproof blanket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110446199.0A CN113106924A (en) | 2021-04-23 | 2021-04-23 | Slope top anchoring method for side slope seepage-proofing waterproof blanket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110446199.0A CN113106924A (en) | 2021-04-23 | 2021-04-23 | Slope top anchoring method for side slope seepage-proofing waterproof blanket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113106924A true CN113106924A (en) | 2021-07-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110446199.0A Pending CN113106924A (en) | 2021-04-23 | 2021-04-23 | Slope top anchoring method for side slope seepage-proofing waterproof blanket |
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| Country | Link |
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| CN (1) | CN113106924A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114837176A (en) * | 2022-06-14 | 2022-08-02 | 中国一冶集团有限公司 | Method for fixing anti-seepage geotextile in separation belt |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH116122A (en) * | 1997-06-19 | 1999-01-12 | Infuratetsuku Kk | Weed control panel for slope protection and laying method therefor |
| CN106869146A (en) * | 2017-02-22 | 2017-06-20 | 安徽省交通建设股份有限公司 | A kind of careless blanket ecoscape slope protection system and construction method |
| CN109252549A (en) * | 2018-09-18 | 2019-01-22 | 上海园林绿化建设有限公司 | A kind of bentonite waterproof blanket and its construction method for man-made lake wetland |
| CN109629609A (en) * | 2018-12-28 | 2019-04-16 | 沈阳工业大学 | Utilize the landfill pad layer anchor structure of rice hull ash concrete |
| CN111188368A (en) * | 2020-02-21 | 2020-05-22 | 沈阳工业大学 | Anti-seepage layer pre-stressed fixing sleeve |
-
2021
- 2021-04-23 CN CN202110446199.0A patent/CN113106924A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH116122A (en) * | 1997-06-19 | 1999-01-12 | Infuratetsuku Kk | Weed control panel for slope protection and laying method therefor |
| CN106869146A (en) * | 2017-02-22 | 2017-06-20 | 安徽省交通建设股份有限公司 | A kind of careless blanket ecoscape slope protection system and construction method |
| CN109252549A (en) * | 2018-09-18 | 2019-01-22 | 上海园林绿化建设有限公司 | A kind of bentonite waterproof blanket and its construction method for man-made lake wetland |
| CN109629609A (en) * | 2018-12-28 | 2019-04-16 | 沈阳工业大学 | Utilize the landfill pad layer anchor structure of rice hull ash concrete |
| CN111188368A (en) * | 2020-02-21 | 2020-05-22 | 沈阳工业大学 | Anti-seepage layer pre-stressed fixing sleeve |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114837176A (en) * | 2022-06-14 | 2022-08-02 | 中国一冶集团有限公司 | Method for fixing anti-seepage geotextile in separation belt |
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Application publication date: 20210713 |