CN218373826U

CN218373826U - Construction system structure for sand layer pre-stressed anchor cable

Info

Publication number: CN218373826U
Application number: CN202222887223.7U
Authority: CN
Inventors: 姜亮亮; 马腾; 史硕; 李铭昕; 秦冬冬; 钱首印; 周玉洁
Original assignee: Third Engineering Co Ltd Of Cccc Fourth Highway Engineering Co ltd
Current assignee: Zhongjiao Xiong'an Construction Co ltd
Priority date: 2022-10-31
Filing date: 2022-10-31
Publication date: 2023-01-24
Anticipated expiration: 2032-10-31

Abstract

The utility model relates to a highway construction technical field, in particular to be used for sand bed prestressed anchorage cable construction system structure, it is big to have the actual volume of sliding in the above-mentioned work progress of solving among the prior art, is difficult to control construction standard's technical problem, include: prefabricating and forming an arc-shaped sliding surface at the first end of the sandstone slope; prefabricating a gravel soil layer on the groove of the sandstone slope; and the prestressed anchor cable structure is prefabricated on the groove, and can extend out of the anchor cable through the anchor device, so that the anchor cable can be prefabricated in the sand layer. This technical scheme can adapt to current construction equipment, apparatus and can effectual reduction tensioning crack bring the influence of sliding, perfect the construction standardization.

Description

Construction system structure for sand layer pre-stressed anchor cable

Technical Field

The utility model relates to a highway construction technical field, in particular to are used for sand bed prestressed anchorage cable construction system structure.

Background

In the existing construction mode, the highway construction often meets the typical high slope topography, and generally presents an east-west direction of a route passing through from a slope toe to form and erode a steep slope topography;

the conventional construction mode is manual construction of a high and steep slope, the main content is to finish the slope protection project at the upper part, the landslide part is in a groove shape, and the slope of the landslide body and the rear slope terrain is 20-35 degrees.

The slope surface is covered with residual slope building gravels or gravel soil, but the landslide part has low topography, takes the gravel soil as a main part, is loose, has good water permeability, low anti-scouring capability and poor stability, and the section slowly slides all the time in the construction process when the slope is cut. A tension crack is formed at the rear part of the groove slope;

in the prior art, the actual slippage of the system model is large, potential safety hazards exist in construction, and the technical standard is difficult to unify.

SUMMERY OF THE UTILITY MODEL

The utility model discloses it is big to have the actual volume of sliding in the above-mentioned work progress among the prior art to solve, and the technical problem of the uncontrollable construction standard provides and is used for sand bed prestressed anchorage cable construction system structure.

In order to solve the technical problem, the technical scheme of the utility model is specifically as follows:

a be used for sand bed prestressed anchorage cable construction architecture, include:

prefabricating and forming an arc-shaped sliding surface 2 at the first end of the sandstone slope 1;

prefabricating a gravel soil layer 4 on a groove 3 of the sandstone slope 1; and

the prestressed anchor cable structure 10 is prefabricated on the groove 3, and the prestressed anchor cable structure 10 can extend out of the anchor cable 21 through the anchor 20 so that the anchor cable 21 can be prefabricated in a sand layer.

Specifically, the type of the anchor 20 is an HVM15 type anchor.

Specifically, the prestressed anchor cable structure 10 includes:

the frame lattice beam 101 is formed by vertically and alternately connecting cross beams 102 and longitudinal beams 103, and is provided with a plurality of connecting node positions 140.

Specifically, each of the connection node locations 140 is fitted with a set of the anchors 20.

Specifically, each of the connection node positions 140 is provided with an anchor cable hole 141.

Specifically, the method further comprises the following steps:

and the two ends of each frame beam 101 in the length direction are respectively connected with one of the pre-positioning parts 110.

Specifically, the pre-positioning portion 110 is curved, the curved direction of the pre-positioning portion faces the extending direction of the anchor cable, and a positioning column 111 is connected to a curved vertex of the pre-positioning portion 110.

Specifically, the pre-positioning portion 110 has a plurality of continuous curves.

The utility model discloses following beneficial effect has:

this technical scheme can adapt to current construction equipment, apparatus and can effectual reduction tensioning crack bring the influence of sliding, perfect the construction standardization.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

FIG. 1 is a schematic diagram of a system of the present invention;

fig. 2 is a schematic view of a first embodiment of a sash beam of the present invention;

fig. 3 is a schematic view of a second embodiment of the lattice beam of the present invention;

fig. 4 is a schematic side view of a first embodiment of a sash beam according to the present invention;

fig. 5 is a schematic side view of a second embodiment of the lattice beam according to the invention;

fig. 6 is a schematic view of the connection mode of the anchorage device of the present invention.

The reference numbers in the figures denote:

the sandstone slope comprises a sandstone slope 1, a slip surface 2, a groove 3, a gravel soil layer 4, an anchorage device 20 and an anchor cable 21;

the frame lattice beam comprises a frame lattice beam 101, a cross beam 102, a longitudinal beam 103, a connecting node position 140 and anchor cable holes 141;

a pre-positioning part 110 and a positioning column 111.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention; for convenience of description, in the present application, the left side is a "first end", the right side is a "second end", the upper side is a "first end", and the lower side is a "second end" in the current view, so that the description is for the purpose of clearly expressing the technical solution, and should not be construed as an improper limitation to the technical solution of the present application.

The utility model discloses it is big to have the actual volume of sliding in the above-mentioned work progress among the prior art to solve, and the technical problem of the difficult control construction standard mainly leads to forming the reason and is the tension crack, and when adopting prestressed anchorage cable to deal with, slides and can influence the position of predetermineeing of prestressed anchorage cable, and this technical scheme provides a more stable structural system, specifically does, please refer to and show in figure 1 for sand bed prestressed anchorage cable construction system structure, include: prefabricating and forming an arc-shaped sliding surface 2 at the first end of the sandstone slope 1; prefabricating a gravel soil layer 4 on a groove 3 of the sandstone slope 1; the pre-stressed anchor cable structure 10 is pre-fabricated on the groove 3, and the pre-stressed anchor cable structure 10 can extend out of the anchor cable 21 through the anchor 20, so that the anchor cable 21 can be pre-fabricated in a sand layer.

According to the technical scheme, the main prestressed anchor cable structure 10 is matched with the existing construction mode, so that the prefabrication of the prestressed anchor cable structure 10 is more stable, the fixed end of the anchor cable 21 slides due to the problem of the prefabrication mode, and the control of the construction quality is influenced;

in a specific embodiment, please refer to fig. 6, the type of the anchor 20 is HVM15 type, that is, the present invention can be improved by the existing anchor cable, so as to save the construction cost.

In a specific embodiment, please refer to fig. 2-5, which illustrate the technical solution including two embodiments, the specific prestressed anchor cable structure 10 includes: the lattice beam 101 is formed by vertically and alternately connecting cross beams 102 and longitudinal beams 103, and is provided with a plurality of connecting node positions 140; thus, the cross beams 102 and the longitudinal beams 103 can be blocked by sand piled nearby, and mutually blocked, the slippage of the frame beams 101 is reduced,

in one embodiment, shown in figures 2-5, each connection node location 140 is provided with a set of anchors 20.

In one embodiment, as shown in fig. 2-5, each connection node 140 is provided with an anchor cable bore 141.

In one embodiment, please refer to fig. 2-5, which further includes:

the two ends of each frame beam 101 in the length direction are respectively connected with one pre-positioning part 110; the pre-positioning portion 110 is equivalent to lengthening the lattice beam 101, and two structures can be selected according to the actual filling amount of sand and the size of sand.

In a specific embodiment, the first embodiment, that is, the first structure, the pre-positioning portion 110 is curved, the curved direction faces the extending direction of the anchor cable, and the curved vertex of the pre-positioning portion 110 is connected with the positioning column 111; the positioning column 111 can assist pre-embedding, and it needs to be explained that the slippage can not be thoroughly eliminated even if the technical scheme is adopted in practical application, and the main purpose of the technical scheme is to reduce the influence of the slippage on the prestressed anchor cable, so that the prefabricated anchor cable is more stable and more suitable for the condition that gravels are broken.

In a specific embodiment, referring to fig. 5, the second embodiment, the pre-positioning portion 110 has a plurality of continuous curves, which is more suitable for the case of larger sand, and the continuous curves can relatively generate larger mosaics.

In a specific embodiment, the roadbed is located higher than the construction work surface of large mechanical equipment, so that when power equipment is selected, a 21m3 air compressor is selected to ensure that the compressed air delivered to the work surface has sufficient pressure.

Because the rock core does not need to be taken in the anchor hole forming, the impact hole forming is adopted, 1 YQ-100B and 2 YQ-100D are selected for the drilling machine, and 3 YQ-100D are alternately used. Because the power of YQ-100B is full pneumatic, the air consumption is large, and 1 air compressor can only be used by 1 drilling machine; the rotating power of YQ-100D is electric, the impact and advance and retreat power is pneumatic, 1 air compressor can be used by 2 drilling machines, the cost is low, the footage is fast, and each footage is about 70m in normal conditions every day.

In the drilling process, a smooth drill rod is used in a relatively complete rock body, and in a loose stratum, the drill rod with blades is adopted, so that the slag soil is discharged conveniently. Due to the fact that sludge and loose gravel soil exist in part of anchor holes, hole forming is difficult, or after hole forming, sludge is necked down, gravel falls off, and an anchor cable cannot be put into the anchor holes.

In conclusion, the technical scheme can adapt to the existing construction equipment and instruments, can effectively reduce the influence of slippage caused by tension cracks, and improves the construction standardization.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. This need not be, nor should it be exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.

Claims

1. A be used for sand bed prestressed anchorage cable construction architecture, its characterized in that includes:

prefabricating and forming an arc-shaped sliding surface (2) at the first end of the sandstone slope (1);

prefabricating a gravel layer (4) on the groove (3) of the sandstone slope (1); and

a pre-stressed anchor cable structure (10) prefabricated on the groove (3), wherein the pre-stressed anchor cable structure (10) can extend out of the anchor cable (21) through the anchor (20) so that the anchor cable (21) can be prefabricated in a sand layer.

2. The pre-stressed anchor cable construction system for sand layers according to claim 1, wherein the type of said anchor (20) is HVM15 type.

3. The pre-stressed anchor rope construction system for a sand layer as claimed in claim 2, wherein the pre-stressed anchor rope structure (10) comprises:

the frame lattice beam (101) is formed by vertically and alternately connecting cross beams (102) and longitudinal beams (103) and is provided with a plurality of connecting node positions (140).

4. A construction system for pre-stressed anchor cables for sand layers according to claim 3, wherein a set of said anchors (20) is installed at each of said connection node positions (140).

5. The pre-stressed anchor cable construction system for a sand layer as claimed in claim 4, wherein each connecting node point (140) is provided with an anchor cable hole (141).

6. The pre-stressed anchor cable construction system for a sand layer as claimed in claim 3, further comprising:

and the two ends of each frame beam (101) in the length direction are respectively connected with one pre-positioning part (110).

7. The pre-stressed anchor cable construction system for sand layers as claimed in claim 6, wherein the pre-positioning portion (110) is curved and the curved direction is towards the extending direction of the anchor cable, and the apex of the curve of the pre-positioning portion (110) is connected with a positioning column (111).

8. The pre-stressed anchor rope construction system for a sand layer as claimed in claim 7, wherein the pre-fixing portion (110) has a plurality of continuous curves.