CN217710769U - Anchor pile type geocell structure for excavation slope ecological protection - Google Patents
Anchor pile type geocell structure for excavation slope ecological protection Download PDFInfo
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- CN217710769U CN217710769U CN202221628653.0U CN202221628653U CN217710769U CN 217710769 U CN217710769 U CN 217710769U CN 202221628653 U CN202221628653 U CN 202221628653U CN 217710769 U CN217710769 U CN 217710769U
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- check room
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Abstract
The utility model discloses an anchor pile type geotechnological check room structure for excavation side slope ecological protection, including geotechnological check room, non-woven fabrics, planting soil, T type nail and excavation side slope, directly lay geotechnological check room on the excavation side slope, backfill the planting soil in the geotechnological check room, geotechnological check room surface lays the non-woven fabrics, and geotechnological check room includes anchor pile and net, the anchor pile sets up at the skeleton node of net and prolongs to check room skeleton bottom 4cm. The utility model discloses be used for digging side slope specially, have that stability is showing the improvement than ordinary geotechnological check room, the greening is effectual and than other characteristics that afforestation protection cost is low. The utility model discloses production simple process improves check room net and anchor pile and can produce. The structure is suitable for soil quality and fully weathered rock excavation slopes with slope rate not steeper than 1.0.
Description
Technical Field
The utility model belongs to civil engineering field, especially an anchor pile type geotechnique's check room structure for excavation side slope ecological protection.
Background
The geocell is a common geotechnical material and is mainly used for slope protection and foundation treatment.
At present, the side slope is generally required to be completely greened, the excavation side slope rate is in accordance with geological conditions and the height of the side slope, and the main slope rate is 1.
Unlike the filling side slope, the non-woven fabric in the arched/herringbone lattice is used for greening and protecting soil. Because the foreign soil is difficult to be directly attached to the relatively steep dense original-state soil, the foreign soil is easy to run off under the rain wash, and the greening protection effect of a plurality of excavation side slopes is poor.
Fill side slope mainly has 1.5, 1.75 and 1.0.
The anchor pile type geocell structure for filling side slope ecological protection is successfully applied to filling side slopes, but the filling and excavation side slope rate and the geological condition are different, so that the anchor pile type geocell structure for filling side slope ecological protection cannot meet the stability of the excavation side slopes, targeted improvement is needed, and the safety and the economical efficiency of the excavation side slope structure are ensured. On the side slope not steeper than 1.0, plant through laying geotechnological check room and irritate the grass, can prevent effectively that domatic planting soil from erodeing, ensure the afforestation protection effect. Meanwhile, compared with the conventional skeleton slope protection, the construction of the grass-filling slope protection planting method is convenient and quick, and the manufacturing cost is reduced by about 50%.
The excavation side slope protection grid chambers are laid along steep side slope slopes, the geocell is of a flexible structure, soil filling and greening are needed in the grid chambers, the slope rate of the excavation side slope is steeper than that of filling, the stability of the geocell on the excavation side slope is poorer than that of filling working conditions, and the geocell is easy to slide along the slopes.
The requirement for preventing the grid and the filling soil in the grid from sliding is higher than that of filling. The common problem of excavation slope engineering adopting geocell greening protection is that the geocell slides along the slope, so that the slope protection effect is influenced.
It is required that the cells are fixed on a fully weathered rock or earthen excavation slope not steeper than 1.0, preferably 1.25 and 1.5 slope rates, and that the excavation slope itself is stable.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides an anchor pile type geotechnological check room structure for excavation side slope ecological protection, the excavation side slope rate that adopts this structure protection is not steep in 1:1.0, excavating the side slope and excavating the step by step, wherein the excavating gradient from top to bottom is generally 1:1.5,1: 1.25. excavation side slope is hugged closely to geotechnological check room, and for guaranteeing geotechnological check indoor back overall stability of filling soil, do not slide along domatic emergence, consider geotechnological check room's economic nature and structural safety nature, convenient construction simultaneously, the technical scheme of the utility model specifically as follows:
the utility model provides an anchor pile type geotechnological check room structure for excavation side slope ecological protection, includes geotechnological check room, non-woven fabrics, planting soil and excavation side slope, directly lay geotechnological check room on the excavation side slope, backfill the planting soil in the geotechnological check room, geotechnological check room surface lays the non-woven fabrics.
Furthermore, the geocell comprises anchor piles and grids, wherein the anchor piles are arranged at the skeleton nodes of the grids and extend to 4cm from the bottom of the geocell skeleton.
Furthermore, T-shaped nails are arranged on the grids, the length of the T-shaped nails is 0.4m, a plurality of T-shaped nails are arranged according to needs, and the arrangement distance is determined according to actual conditions such as slope rate and slope height so as to fix the geocell. The T-shaped nail can be replaced by a small wooden stick, a waste steel bar or a bamboo stick, and the geocell can be fixed.
Further, the geocell material is polypropylene PP or polyethylene PE. Wherein the transverse tensile strength of the cellular sheets is more than or equal to 20kN/m, the longitudinal tensile strength of the cellular sheets is more than or equal to 70KN/m, and the corresponding elongation is less than or equal to 15 percent; the breaking tension of the joints among the cellular pieces is more than or equal to 160KN/m;
the longitudinal and transverse tensile strength of the cellular slice conventionally used for foundation treatment is more than or equal to 1000KN/m, and the corresponding elongation is less than or equal to 10 percent; the breaking tension of the joints among the cellular sheets is more than or equal to 800KN/m;
the earthwork grid chamber for digging side slope has less grid chamber, less soil weight and no bearing of other load, and thus has lower required strength.
Furthermore, the non-woven fabric is low in strength and can be naturally degraded within 2 years.
Further, the height of the anchor pile is 12cm, the anchor pile is U-shaped, the diameter is about 0.7cm, the material can be made of polypropylene PP, and can also be made of steel nails, namely, the adjacent cellular room sheets are spliced and connected through the U-shaped anchor pile, and the pile head range of the anchor pile at the bottom is conical, so that the anchor pile is conveniently anchored into a soil body.
Furthermore, the T-shaped nail is an elongated or encrypted T-shaped nail.
Furthermore, the grid is formed by connecting a plurality of small grids, the center height is 8cm, the grid size is 40 multiplied by 40cm, and the grid is square.
Furthermore, the top of the grid is horizontal, the bottom of the grid is provided with a bottom arc-shaped edge, and the arc-shaped edge faces downwards.
Furthermore, the grid is provided with circular communication holes with the diameter of about 2.5cm.
Compared with the prior art, the beneficial effects of the utility model are specifically as follows:
(1) The bottom of the geocell is a plane, the geocell is directly attached to an excavation slope surface, the geocell is fixed on the slope surface only through T-shaped nails, and the geocell is easy to slip along the slope or deform locally after being filled with soil. The utility model discloses a set up the anchor pile, directly pass through the anchor pile with geotechnological check room and fix on slope, then reuse T type nail further fixes geotechnological check room on slope, requires slope top geotechnological check room to strengthen T type nail setting. Through the effect of geotechnique's check room bottom anchor pile, strengthened geotechnique's check room stability, can effectively prevent that check room and check indoor fill soil from sliding.
The grid production cost is higher because the grid of the ordinary cells are welded, and the T-shaped anchor piles are used for splicing the grid of the cells to form a whole, which is a great difference between the structure and the conventional geocell.
(2) General slope geotechnique check room height is 10cm to 111cm, the utility model discloses a set up the anchor pile, geotechnique check room central height reduces to 8cm, has reduced material cost than present ordinary check room, effectively reduces engineering cost, has reduced the construction degree of difficulty, has still strengthened the afforestation effect.
(3) General slope geotechnological check room top is ascending arc, the utility model discloses an anchor pile type geotechnological check room, geotechnological check room net top level can increase the check room and fill out soil, has increased the afforestation effect, and the bottom sets up downward arc limit, is favorable to plant roots intercommunication and domatic drainage, has saved the material quantity simultaneously.
(4) The grid cells are provided with circular communication holes, the diameter of each grid cell is about 2.5cm, drainage among the grid cells can be met, the communication of plant root systems among the grid cells is facilitated, the integrity of the side slope is enhanced, and the material consumption is saved.
The utility model discloses an anchor pile type geotechnological check room is used for the excavation side slope specially, has fully considered the comparatively closely knit condition of excavation side slope, and the implementation of being convenient for has stability height, and it is effectual to afforest, characteristics that more ordinary check room cost is low. The utility model provides a novel geotechnological check room production simple process can produce through suitably improving conventional technology.
Drawings
Fig. 1 is a detailed view of the geocell slope protection of the utility model;
fig. 2 is a side elevation view of the anchor pile type geocell of the present invention;
fig. 3 is a side plan view of the anchor pile type geocell of the present invention;
in the figure, 1-geocell, 2-non-woven fabric, 3-planting soil, 4-excavation slope, 5-T-shaped nail, 6-anchor pile, 7-round intercommunicating pore, 8-grid and 9-broadcast sowing mixed material.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some examples of the present invention, not all examples. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without any creative effort belong to the protection scope of the present invention.
As shown in fig. 1, this embodiment is used for anchor pile type geotechnique's check room structure of excavation side slope protection, anchor pile type geotechnique's check room 1 structure is located excavation side slope 4, and with excavation side slope 4 flattening back during the construction, lay geotechnological check room 1, it is preliminary fixed to drive the side slope with the anchor pile 6 of geotechnological check room, and rethread T type nail 5 is further fixed, and check room limit portion must adopt T type nail 5 fixed firm, and side slope top T type nail 5 will suitably encrypt, ensures geotechnological check room overall stability. Then backfilling planting soil 3 in the geocell 1 from bottom to top of the slope toe of the side slope to the top surface of the geocell, wherein the surface of the planting soil 3 is flush with the geocell, and properly flattening the surface by using a spade; and mixing shrub, flower and grass seeds and planting soil to obtain a broadcast sowing mixture 9, scattering the broadcast sowing mixture on the surfaces of the cells, paving a layer of non-woven fabric 2, and finally spraying water to finish the whole slope greening protection process.
As shown in fig. 2-3, the geocell 1 includes anchor piles 6, grids 8 and circular communication holes 7, wherein the grids 8 are formed by connecting a plurality of small grids, and each small grid is 40 × 40cm in size and is square. The anchor piles 6 are arranged at the joints of the skeleton of the grid 8 and extend to the bottom of the grid room by about 4cm, the grid 8 is provided with a bottom arc-shaped edge, the arc-shaped edge faces downwards, the grid 8 is provided with circular communication holes 7, the T-shaped nails 5 are arranged at the joints of the grid 8, and a plurality of the T-shaped nails are arranged as required to require the top of the side slope to be properly encrypted.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides an anchor pile type geotechnological check room structure for excavation side slope ecological protection which characterized in that: including geotechnological check room (1), non-woven fabrics (2), planting soil (3) and excavation side slope (4), directly lay geotechnological check room (1) on excavation side slope (4), backfill planting soil (3) in geotechnological check room (1), one deck non-woven fabrics (2) are laid on geotechnological check room (1) surface.
2. The anchor pile type geocell structure for excavation slope ecological protection according to claim 1, wherein: the geocell (1) comprises anchor piles (6) and grids (8), wherein the anchor piles (6) are arranged at the skeleton nodes of the grids (8) and extend to the bottom 4cm of the geocell skeleton.
3. The anchor pile type geocell structure for excavation slope ecological protection according to claim 2, wherein: the grid (8) is provided with T-shaped nails (5), the length of the T-shaped nails is 0.4m, a plurality of T-shaped nails are arranged according to needs, and the arrangement distance is determined according to the actual conditions of the slope rate and the slope height.
4. An anchor pile type geocell structure for excavated slope ecological protection according to any one of claims 1 to 3, wherein: the geocell (1) is made of polypropylene PP or polyethylene PE, the transverse tensile strength of the cell sheet is more than or equal to 20kN/m, the longitudinal tensile strength of the cell sheet is more than or equal to 70KN/m, and the corresponding elongation is less than or equal to 15%; the breaking tension of the joints between the cellular pieces is more than or equal to 160KN/m.
5. The anchor pile type geocell structure for excavation slope ecological protection according to claim 1, wherein: the non-woven fabric (2) is low in strength and can be naturally degraded within 2 years.
6. The anchor pile type geocell structure for excavation slope ecological protection according to claim 2, wherein: the height of the anchor pile (6) is 12cm, the anchor pile (6) is U-shaped, the diameter is 0.7cm, the anchor pile is made of polypropylene PP or steel nails, the adjacent cell sheets are connected through the U-shaped anchor pile, and the pile head range of the anchor pile at the bottom is conical.
7. The anchor pile type geocell structure for excavation slope ecological protection according to claim 3, wherein: the T-shaped nail (5) is a lengthened or encrypted T-shaped nail (5).
8. The anchor pile type geocell structure for excavation slope ecological protection according to claim 2, wherein: the grid (8) is formed by connecting a plurality of small grids, the center height of each small grid is 8cm, the length and width dimensions are 40 multiplied by 40cm, and the grid is square.
9. The anchor pile type geocell structure for excavation slope ecological protection according to claim 2, wherein: the top of the grid (8) is horizontal, the bottom of the grid is provided with an arc-shaped edge, and the arc-shaped edge faces downwards.
10. The anchor pile type geocell structure for excavation slope ecological protection according to claim 2, wherein: the grid (8) is provided with a plurality of circular communication holes (7) with the diameter of 2.5cm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202221628653.0U CN217710769U (en) | 2022-06-28 | 2022-06-28 | Anchor pile type geocell structure for excavation slope ecological protection |
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| CN202221628653.0U CN217710769U (en) | 2022-06-28 | 2022-06-28 | Anchor pile type geocell structure for excavation slope ecological protection |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117364737A (en) * | 2023-11-02 | 2024-01-09 | 交科院环境科技(北京)有限公司 | Protection structure and protection method for grass planting slope |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117364737A (en) * | 2023-11-02 | 2024-01-09 | 交科院环境科技(北京)有限公司 | Protection structure and protection method for grass planting slope |
| CN117364737B (en) * | 2023-11-02 | 2024-03-22 | 交通运输部科学研究院 | Protection structure and protection method for grass planting slope |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Yang Debao Inventor after: Zhang Pengcheng Inventor after: Zhang Faling Inventor after: Kong Renqing Inventor after: Yang Mingdong Inventor after: Nie Sen Inventor after: Yang Yunhui Inventor after: Fan Wei Inventor after: Mei Di Inventor after: Zhang Dali Inventor after: Yu Ming Inventor after: Tao Cai Inventor after: He Jianhong Inventor after: Li Yuehong Inventor after: Zhang Facai Inventor after: Zhao Lulin Inventor after: Wang Tao Inventor before: Yang Debao Inventor before: Zhang Dali Inventor before: Yu Ming Inventor before: Tao Cai Inventor before: He Jianhong Inventor before: Li Yuehong Inventor before: Zhang Facai Inventor before: Zhao Lulin |
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| CB03 | Change of inventor or designer information |