Assembly cast-in-place lattice beam structure for slope emergency rescue

Abstract

The utility model discloses an assembly cast-in-place lattice beam structure for side slope emergency rescue, the lattice beam structure comprises a lattice beam frame, a plurality of concrete buried plates, a plurality of short piles, anchor cables and a backfill layer, the plurality of short piles are buried in a side slope, the plurality of concrete buried plates are buried in the side slope, and the anchor cables are embedded in the backfill layer. The multiple concrete buried plates are laid on a side slope in the transverse direction and the longitudinal direction and correspond to the short piles in position, the side length of the cross section of the lattice beam frame is smaller than that of the concrete buried plates, anchor holes are formed in the center positions of the concrete buried plates, the lattice beam frame is poured on the concrete buried plates, and multiple transverse lattice beams and longitudinal lattice beams are formed on the concrete buried plates. One end of each anchor cable is inserted into the side slope from the corresponding anchor hole, the other end of each anchor cable protrudes out of the surface of the lattice beam frame, lattices are formed between the transverse lattice beams and the longitudinal lattice beams, the lattices are filled with the backfill layer, and the height of the backfill layer is flush with the height of the lattice beam frame.

Description

Technical Field

[0001] This utility model relates to the field of slope protection technology in geotechnical engineering, and specifically to an assembled cast-in-place grid beam structure for slope emergency repair. Background Technology

[0002] In slope anchoring and protection engineering, it is generally necessary to use casting formwork to build multiple crisscrossing frames on the slope, and then pour concrete into the frames to obtain a grid beam structure. The grid beam structure plays a protective role for the slope and prevents landslides or collapses. However, this slope protection method is only suitable for rock slopes and slopes with hard soil. When the soil of the slope is relatively soft, the grid beam structure poured on the slope will deform and sink over time, and the prestress of the anchor cables applied to the grid beam will be greatly lost, which will greatly reduce the protective effect of the grid beam structure and anchoring project. In view of this, this utility model is proposed. Utility Model Content

[0003] To address the problem of poor protection performance of existing grid beam structures on soft soil slopes, this utility model provides an assembled cast-in-place grid beam structure for slope emergency repair.

[0004] To solve the aforementioned technical problems, this utility model provides an assembled cast-in-place grid beam structure for slope emergency repair. The grid beam structure includes a grid beam frame, concrete embedded plates, short piles, anchor cables, and a backfill layer. Multiple short piles are provided and embedded within the slope. Multiple concrete embedded plates are provided and laid horizontally and vertically on the slope, corresponding to the positions of the short piles. The cross-sectional side length of the grid beam frame is smaller than the side length of the concrete embedded plates. An anchor hole is provided at the center of each concrete embedded plate. The grid beam frame is cast onto the concrete embedded plates, forming multiple horizontal and vertical grid beams. One end of each anchor cable is inserted into the slope through the anchor hole, and the other end protrudes from the surface of the grid beam frame. A grid is formed between the multiple horizontal and vertical grid beams. The backfill layer fills the grid, and its height is flush with the height of the grid beam frame.

[0005] In an embodiment of this utility model, the cross-section of the transverse grid beam and the longitudinal grid beam is a first square, and the surface of the concrete embedded plate is a second square, wherein the side length of the first square is smaller than the side length of the second square.

[0006] In an embodiment of this utility model, the side length of the first square is in the range of 40cm-50cm, and the side length of the second square is in the range of 100cm-200cm.

[0007] In embodiments of this utility model, the thickness of the concrete embedded plate ranges from 10cm to 20cm, and the diameter of the anchor hole ranges from 20cm to 30cm.

[0008] In an embodiment of this utility model, the backfill layer includes a vegetation backfill layer and a concrete backfill layer. The vegetation backfill layer fills the frame, and the concrete backfill layer fills the vegetation backfill layer above the transverse grid beam, forming a 10° drainage slope between the concrete backfill layer and the transverse grid beam.

[0009] In an embodiment of this utility model, the interior of the concrete embedded plate is provided with a plurality of crisscrossing first reinforcing bars, and the interior of both the transverse grid beam and the longitudinal beam is provided with a plurality of crisscrossing second reinforcing bars.

[0010] In an embodiment of this utility model, the second reinforcing bar is formed by binding N1 type reinforcing bars, N2 type reinforcing bars, N3 type reinforcing bars and N4 type reinforcing bars. The N1 type reinforcing bar is φ25-28HRB400 threaded steel, the N2 type reinforcing bar is φ18HRB400 threaded steel, the N3 type reinforcing bar is φ12HRB400 threaded steel, and the N4 type reinforcing bar is φ10HRB300 round steel.

[0011] In an embodiment of this utility model, the second reinforcing bar is composed of N1 type reinforcing bars and N4 type reinforcing bars to form a reinforcing mesh. The N1 type reinforcing bars are φ25-28HRB400 threaded steel bars, and the N4 type reinforcing bars are φ10HRB300 round steel bars.

[0012] In an embodiment of this utility model, the length of the short piles ranges from 100cm to 300cm, and the short piles are arranged in a quincunx pattern within the slope below the concrete slab, with a spacing of 50cm to 75cm between adjacent short piles.

[0013] In an embodiment of this utility model, an anchor plate and an anchor head are installed at the position where the anchor cable protrudes from the surface of the grid beam frame. The anchor plate is attached to the surface of the grid beam frame, and the anchor head is fixed to the end of the anchor cable.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] By embedding short piles into the slope to support the concrete slab, the bearing capacity of the slope is improved, allowing the concrete slab to be firmly laid on the slope. The concrete slab then supports the grid beam frame, preventing the slab from sinking due to soft soil. Anchor cables inserted into the slope connect to the grid beam frame, ensuring the frame is firmly laid on the slope under the support of the concrete slab. The tension of the anchor cables further enhances the frame's stability. Simultaneously, the backfill layer prevents rainwater accumulation within the frame, reducing erosion and softening of the grid beam foundation. Furthermore, the backfill layer increases the strength and bearing capacity of the slope soil within the frame, mitigating the risk of landslides or collapses. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the embodiments of the present invention and form part of the specification. They are used together with the following detailed description to explain the embodiments of the present invention, but do not constitute a limitation thereof. In the drawings:

[0017] Figure 1 This is a front view schematic diagram of the grid beam structure provided in this embodiment of the utility model laid on a slope;

[0018] Figure 2 yes Figure 1 Schematic diagram of the cross-section at point I-I;

[0019] Figure 3 yes Figure 1 Cross-sectional schematic diagram at point II-II;

[0020] Figure 4 yes Figure 3 A magnified view of point A in the figure;

[0021] Figure 5 This is a front view structural diagram of the concrete embedded plate in the grid beam structure provided in this embodiment of the utility model;

[0022] Figure 6 This is a side view of the transverse grid beam in the grid beam structure provided in this embodiment of the utility model;

[0023] Figure 7 yes Figure 6 Cross-sectional schematic diagram at point BB;

[0024] Figure 8 This is a side view of the longitudinal grid beam in the grid beam structure provided in this embodiment of the utility model;

[0025] Figure 9 yes Figure 8 Cross-sectional schematic diagram at point CC;

[0026] Figure 10 yes Figure 8 A schematic diagram of the cross-section at point DD.

[0027] Explanation of reference numerals in the attached figures

[0028] 1. Slope; 2. Concrete embedded slab; 3. Transverse grid beam; 4. Longitudinal grid beam; 5. Top beam; 6. Bottom beam; 7. Anchor cable; 8. Short pile; 9. Anchor head; 10. Vegetation backfill layer; 11. Anchor hole; 12. N1 type steel bar; 13. N2 type steel bar; 14. N3 type steel bar; 15. N4 type steel bar; 16. Concrete backfill layer. Detailed Implementation

[0029] The following is a detailed description of the specific embodiments of the present invention in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present invention and are not intended to limit the present invention.

[0030] Please see Figure 1-Figure 3 This utility model addresses the problems in the prior art by providing an assembled cast-in-place grid beam structure for emergency slope protection. The grid beam structure includes a grid beam frame, a concrete embedded plate 2, short piles 8, anchor cables 7, and a backfill layer. Multiple short piles 8 are provided and embedded within the slope 1. Multiple concrete embedded plates 2 are provided and laid on the slope 1 in both the transverse and longitudinal directions, corresponding to the positions of the short piles 8. The cross-sectional side length of the grid beam frame is smaller than the side length of the concrete embedded plate 2. An anchor hole 11 is provided at the center of the concrete embedded plate 2. The grid beam frame is cast on the concrete embedded plate 2, forming multiple transverse grid beams 3 and longitudinal grid beams 4. One end of the anchor cable 7 is inserted into the slope 1 through the anchor hole 11, and the other end protrudes from the surface of the grid beam frame. A grid is formed between the multiple transverse grid beams 3 and the multiple longitudinal grid beams 4. The backfill layer fills the grid and its height is flush with the height of the grid beam frame.

[0031] By embedding multiple short piles 8 within the slope 1 and laying concrete slabs 2 on the slope 1 in both the transverse and longitudinal directions, while ensuring that the positions of the concrete slabs 2 and the short piles 8 correspond, the surface bearing capacity of the slope 1 can be improved under the action of the short piles 8. Furthermore, when the concrete slabs 2 are laid on the slope 1 containing the short piles 8, the short piles 8 can provide more stable support for the concrete slabs 2, preventing the concrete slabs 2 from sinking on the slope 1 due to the soft soil.

[0032] By inserting anchor cables 7 into the slope 1 through the anchor holes 11 of the concrete embedded plate 2, and casting transverse grid beams 3 and longitudinal grid beams 4 onto the concrete embedded plate 2 to form a grid beam frame, the grid beam frame is more stably fixed to the slope 1 under the support of the concrete embedded plate 2. At the same time, the connection between the anchor cables 7 and the grid beam frame provides tension to the grid beam frame, further increasing the firmness of the grid beam frame on the slope 1. Since the cross-sectional side length of the grid beam frame is smaller than the side length of the concrete embedded plate 2, it can provide support for the grid beam frame under the action of the concrete embedded plate 2, and increase the contact area of ​​the grid beam frame on the slope 1 under the action of the concrete embedded plate 2, further preventing the grid beam frame from sinking due to the soft soil of the slope 1.

[0033] By laying a backfill layer inside the grid and making the height of the backfill layer flush with the height of the grid beam frame, the surface of slope 1 becomes smoother under the action of the backfill layer, preventing rainwater from accumulating inside the grid and causing water accumulation. This reduces the erosion and softening of the grid beam structure foundation by accumulated water. At the same time, the backfill layer can also increase the soil strength and bearing capacity of slope 1 inside the grid, preventing the risk of slope 1 from landslide or collapse.

[0034] In the embodiments of this utility model, the cross-section of the transverse grid beam 3 and the longitudinal grid beam 4 is a first square, and the surface of the concrete embedded plate 2 is a second square. The side length of the first square is smaller than the side length of the second square, so that the transverse grid beam 3 and the longitudinal grid beam 4 are fixed on the slope 1 under the action of the concrete embedded plate 2. The concrete embedded plate 2 increases the contact area between the grid beam frame and the slope 1, and avoids the grid beam frame from sinking due to the soft soil of the slope 1.

[0035] In one example, the side length of the first square is 40cm-50cm, and the side length of the second square is 100cm-200cm. This is so that after the grid beam frame is poured onto the concrete embedded plate 2, the contact area between the grid beam frame and the slope 1 is increased under the action of the concrete embedded plate 2, thus avoiding the situation where the sinking occurs due to the small contact area between the concrete embedded plate 2 and the grid beam frame on the slope 1.

[0036] In this embodiment of the utility model, the thickness of the concrete embedded plate 2 ranges from 10cm to 20cm, so that the concrete embedded plate 2 can provide stable support for the grid beam frame, avoiding the concrete embedded plate 2 being unable to bear the weight of the grid beam frame due to its thinness. At the same time, it can also reduce the weight of the concrete embedded plate 2 itself, avoiding the situation where the concrete embedded plate 2 sinks on the slope 1 due to excessive weight. The diameter of the anchor hole 11 ranges from 20cm to 30cm, so that after the anchor cable 7 is inserted into the anchor hole 11, a gap is formed between the anchor cable 7 and the anchor hole 11. Then, the anchor cable 7 can be cast into an anchor body by pouring backfill layer at the gap, thereby fixing the concrete embedded plate 2 and the grid beam frame to the slope through the anchor body, increasing the connection firmness between the grid beam frame, the concrete embedded plate 2, the anchor body, and the slope 1.

[0037] Please see Figure 4 In an embodiment of this utility model, the backfill layer includes a vegetation backfill layer 10 and a concrete backfill layer 16. The vegetation backfill layer 10 fills the frame, and the concrete backfill layer 16 fills the vegetation backfill layer 10 above the transverse grid beam 3. A 10° drainage slope is formed between the concrete backfill layer 16 and the transverse grid beam 3 so that the height inside the frame is level with the height of the grid beam frame under the action of the vegetation backfill layer 10, preventing water accumulation inside the frame. At the same time, the concrete backfill layer 16 drains the water accumulated on the surface of the vegetation backfill layer 10, further reducing water accumulation in the vegetation backfill layer 10.

[0038] Please see Figures 5-10 In this embodiment of the utility model, the interior of the concrete embedded plate 2 is provided with a plurality of crisscrossing first reinforcing bars, and the interior of the transverse grid beam 3 and the longitudinal grid beam 4 are provided with a plurality of crisscrossing second reinforcing bars, so as to increase the structural strength of the concrete embedded plate 2 under the action of the plurality of first reinforcing bars, and increase the structural strength of the transverse grid beam 3 and the longitudinal grid beam 4 under the action of the plurality of second reinforcing bars, thereby preventing the grid beam structure from breaking.

[0039] In the above embodiment, the first reinforcing bar is a reinforcing mesh composed of N1 type reinforcing bars 12 and N4 type reinforcing bars 15. The N1 type reinforcing bars 12 are φ25-28HRB400 threaded steel bars, and the N4 type reinforcing bars 15 are φ10HRB300 round steel bars. The second reinforcing bar is formed by binding N1 type reinforcing bars 12, N2 type reinforcing bars 13, N3 type reinforcing bars 14, and N4 type reinforcing bars 15 together. The N1 type reinforcing bars 12 are φ25-28HRB400 threaded steel bars, the N2 type reinforcing bars 13 are φ18HRB400 threaded steel bars, the N3 type reinforcing bars 14 are φ12HRB400 threaded steel bars, and the N4 type reinforcing bars 15 are φ10HRB300 round steel bars.

[0040] In the embodiments of this utility model, the length of the short piles 8 ranges from 100cm to 300cm. The short piles 8 are arranged in a quincunx pattern in the slope 1 below the concrete embedded plate 2. The spacing between adjacent short piles 8 is 50cm to 75cm. This allows a concrete embedded plate 2 to be laid on the slope 1 with the support of multiple short piles 8, thereby increasing the supporting effect of the short piles 8 on the concrete embedded plate 2 and preventing the concrete embedded plate 2 from sinking on the slope 1.

[0041] Please see Figure 2 In this embodiment of the utility model, an anchor plate and an anchor head 9 are installed at the position where the anchor cable 7 protrudes from the surface of the grid beam frame. The anchor plate is attached to the surface of the grid beam frame, and the anchor head 9 is fixed to the end of the anchor cable 7. After the anchor cable 7 is inserted into the slope 1, the anchor head 9 and the anchor plate provide tension to the grid beam frame, increasing the stability of the grid beam frame on the slope 1, and at the same time preventing the anchor cable 7 from detaching from the grid beam frame.

[0042] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0043] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings; however, the present invention is not limited thereto. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, including the combination of various specific technical features in any suitable manner. To avoid unnecessary repetition, the present invention will not describe the various possible combinations separately. However, these simple modifications and combinations should also be considered as the content disclosed in the present invention and are all within the protection scope of the present invention.

[0044] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A prefabricated cast-in-place grid beam structure for slope emergency repair, characterized in that, The grid beam structure includes a grid beam frame, concrete slabs, short piles, anchor cables, and a backfill layer. Multiple short piles are installed and embedded within the slope. Multiple concrete slabs are laid on the slope in both the transverse and longitudinal directions, corresponding to the positions of the short piles. The cross-sectional side length of the grid beam frame is smaller than the side length of the concrete slabs. An anchor hole is provided at the center of the concrete slab. The grid beam frame is cast onto the concrete slab, forming multiple transverse and longitudinal grid beams. One end of the anchor cable is inserted into the slope through the anchor hole, and the other end protrudes from the surface of the grid beam frame. A grid is formed between the multiple transverse and longitudinal grid beams. The backfill layer fills the grid, and its height is flush with the height of the grid beam frame.

2. The prefabricated cast-in-place grid beam structure for slope emergency repair according to claim 1, characterized in that, The cross-section of the transverse and longitudinal grid beams is a first square, and the surface of the concrete embedded plate is a second square, wherein the side length of the first square is smaller than the side length of the second square.

3. The prefabricated cast-in-place grid beam structure for slope emergency repair according to claim 2, characterized in that, The side length of the first square is between 40cm and 50cm, and the side length of the second square is between 100cm and 200cm.

4. The prefabricated cast-in-place grid beam structure for slope emergency repair according to claim 1, characterized in that, The thickness of the concrete embedded plate ranges from 10cm to 20cm, and the diameter of the anchor hole ranges from 20cm to 30cm.

5. A prefabricated cast-in-place grid beam structure for slope emergency repair according to claim 1, characterized in that, The backfill layer includes a vegetation backfill layer and a concrete backfill layer. The vegetation backfill layer fills the frame, and the concrete backfill layer fills the vegetation backfill layer above the transverse grid beam, forming a 10° drainage slope between the concrete backfill layer and the transverse grid beam.

6. A prefabricated cast-in-place grid beam structure for slope emergency repair according to claim 1, characterized in that, The interior of the concrete slab is provided with multiple crisscrossing first reinforcing bars, and the interior of both the transverse grid beam and the longitudinal beam is provided with multiple crisscrossing second reinforcing bars.

7. A prefabricated cast-in-place grid beam structure for slope emergency repair according to claim 6, characterized in that, The second reinforcing bar is formed by binding N1 type reinforcing bars, N2 type reinforcing bars, N3 type reinforcing bars and N4 type reinforcing bars. The N1 type reinforcing bar is φ25-28HRB400 threaded steel, the N2 type reinforcing bar is φ18HRB400 threaded steel, the N3 type reinforcing bar is φ12HRB400 threaded steel, and the N4 type reinforcing bar is φ10HRB300 round steel.

8. A prefabricated cast-in-place grid beam structure for slope emergency repair according to claim 6, characterized in that, The second reinforcing bar is composed of N1 type reinforcing bars and N4 type reinforcing bars to form a reinforcing mesh. The N1 type reinforcing bars are φ25-28HRB400 threaded steel bars, and the N4 type reinforcing bars are φ10HRB300 round steel bars.

9. A prefabricated cast-in-place grid beam structure for slope emergency repair according to claim 1, characterized in that, The short piles range in length from 100cm to 300cm and are arranged in a quincunx pattern within the slope below the concrete slab, with a spacing of 50cm to 75cm between adjacent short piles.

10. A prefabricated cast-in-place grid beam structure for slope emergency repair according to claim 1, characterized in that, An anchor plate and an anchor head are installed at the position where the anchor cable protrudes from the surface of the grid beam frame. The anchor plate is attached to the surface of the grid beam frame, and the anchor head is fixed to the end of the anchor cable.

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