CN220202709U

CN220202709U - Prestressed anchor cable and anchor rod combined frame

Info

Publication number: CN220202709U
Application number: CN202321569882.4U
Authority: CN
Inventors: 王浩; 宋昊明; 张金涛; 安杰; 晏田田
Original assignee: Architectural Design And Research Institute Of Henan Province Co ltd; Henan University
Current assignee: Architectural Design And Research Institute Of Henan Province Co ltd; Henan University
Priority date: 2023-06-20
Filing date: 2023-06-20
Publication date: 2023-12-19
Anticipated expiration: 2033-06-20

Abstract

The utility model discloses a prestress anchor cable and anchor rod combined frame which comprises a combined frame and an anchoring mechanism, wherein the combined frame is used for supporting a side slope, the anchoring mechanism is used for fixing the combined frame, a plurality of combined frames are arranged on the side slope, the combined frame is connected with the anchoring mechanism in a penetrating mode, and the anchoring mechanism is inserted into the side slope. According to the utility model, the anchor rods are added in the longitudinal ribs of the conventional anchor cable frame, so that the thrust of the shallow sliding surface can be transmitted to the middle layer, the proportion of the bearing load of the structure is reduced by utilizing the higher stability characteristic of the middle sliding surface, and meanwhile, the anchor rods are added in the lowest row of anchor cables to form a pile-anchor frame common loading system, so that the anti-skid capability of the structure is improved. The novel structure has higher application value in the landslide of a medium-large stacking layer with a plurality of layers of sliding surfaces.

Description

Prestressed anchor cable and anchor rod combined frame

Technical Field

The utility model relates to the field of slope protection, in particular to a combined frame of a prestressed anchor cable and an anchor rod.

Background

The active slope protecting system is one kind of flexible wire net covering the slope to limit the weathering peeling or damage of slope and rock and collapse or control falling rock to certain range.

The existing prestress miniature steel pipe pile prestress anchor rod rope combined supporting system, anchor rod sheet pile combined structure and anchor rod and anchor rope combined supporting rib plate type retaining wall mainly have the problems: 1. the prestress miniature steel pipe pile prestress anchor rod rope combined supporting system has low deformation resistance, and the excavation of a foundation pit side slope is too large, so that the middle structure of the side slope is easy to damage; 2. the anchor rod sheet pile combined structure and the anchor rod and anchor rope combined supporting rib plate type retaining wall are mainly used for filling side slopes, and the resisting thrust is small; 3. the section of the retaining wall of the prestress anchor rod and cable combined support system of the prestress miniature steel pipe pile and the anchor rod and sheet pile combined structure is gradually changed, and the structure is easy to crack due to stress concentration under the action of earthquake load; 4. all three structures require the bottom to be inserted into a stable stratum, and stratum in front of the structure can provide a certain counter force, so that skirting damage can be generated; 5. the structure forms an upright slope, which is unfavorable for plant growth and has poor environmental protection effect; 6. the combined structure is difficult to construct quickly in the emergency support process of the soil landslide, and is complex and high in cost; 7. in rainy season, the anchor rod sheet pile combined structure is easy to cause unsmooth drainage of underground water in the slope body, and the risk of structural damage is increased

Disclosure of Invention

The utility model aims to solve the problems and provide a combined frame of a prestressed anchor rope and an anchor rod.

The utility model realizes the above purpose through the following technical scheme:

the combined frame comprises a combined frame and an anchoring mechanism, wherein the combined frame is used for supporting on a side slope, the anchoring mechanism is used for fixing the combined frame, a plurality of combined frames are arranged on the side slope, the combined frames are connected with the anchoring mechanism in a penetrating way, and the anchoring mechanism is inserted into the side slope;

the combined frame comprises a longitudinal rib and a cross beam, wherein the longitudinal rib is vertically and cross-connected with the cross beam, a mounting hole is formed in the cross point of the longitudinal rib and the cross beam, and the longitudinal rib comprises an upper slope-pasting beam and a lower bracket;

the anchoring mechanism comprises anchor rods and anchor ropes, the anchor rods and the anchor ropes are connected with the side slopes through mounting holes, the anchor rods and the anchor ropes are transversely arranged at intervals and located in each group of bottom mounting holes of the combined frame and penetrate through the anchor rods and the anchor ropes at the same time.

Preferably: each group of combined frames comprises five cross beams and three longitudinal ribs.

Preferably: the anchor cable includes a free section and a fixed section.

Preferably: the anchor rope free section comprises steel strand wires, the anchor rope fixed section comprises slip casting body.

So set up, the anchor rope passes the multilayer sliding surface, and deep stabilization stratum plays and provides anti-skidding counter-force effect for the side slope.

Preferably: the longitudinal ribs and the cross beams are formed by pouring reinforced concrete.

So set up, guarantee construction strength and fixed effect.

Compared with the prior art, the utility model has the following beneficial effects:

1. the bearing capacity is high, the bearing area of the prestressed anchor cable and anchor rod combined frame is increased by 1 time compared with that of a common anchor cable frame, the anti-slip force of the anchor cable can be fully exerted, and the bearing capacity of a pile-anchor combined system formed by anchor cable anchors at the bottom layer of the frame is increased by more than 15% compared with that of the common anchor cable frame;

2. meanwhile, the anchor rod is used for transmitting the sliding force of the surface layer to the deep layer, so that the deformation resistance of the sliding body is improved, and the sliding body is suitable for preventing and controlling the sliding on the multi-layer sliding surface;

3. the earthquake resistance is improved, the longitudinal and transverse beams form a frame structure without gradual change, and the stress concentration is small under the action of earthquake force, so that the earthquake damage force can be resisted;

4. the bracket at the lower part of the longitudinal rib is bent to extend into the slope body, so that vertical support can be provided for the frame, and the soil body in front of the bracket is not required to provide counter force under the action of landslide thrust;

5. the upper and lower parts of the longitudinal ribs are bent, and the cross beams and the upper parts of the longitudinal ribs are attached to slopes, so that the combined frame structure can adapt to different slope terrains, and meanwhile, a space is provided for slope greening;

6, the combined frame of the prestressed anchor cable and the anchor rod is small in construction excavation, small in disturbance to a slope body, high in construction speed and suitable for landslide emergency rescue;

7. the frame formed by the longitudinal ribs and the cross beams is beneficial to preventing the water and soil loss on the surface and draining the underground water, and deep drain holes are not required to be specially arranged;

8. the anti-overturning capacity of the longitudinal ribs of the inclined slope-pasting design is improved by more than 1 time compared with that of the straight piles, the soil pressure born by the novel frame structure is minimum, and the stability of the slope can be ensured by utilizing dead weight to the greatest extent.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings that are necessary for the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.

FIG. 1 is a schematic view of a modular frame installation structure of a pre-stressed anchor cable and anchor rod modular frame according to the present utility model;

FIG. 2 is a schematic view of the anchoring mechanism and the combination frame of the pre-stressed anchor cable and the anchor rod combination frame of the utility model;

FIG. 3 is a schematic view of a combined frame of a pre-stressed anchor cable and anchor rod combination frame according to the present utility model;

fig. 4 is a schematic view of a longitudinal rib structure of a prestressed anchor cable and anchor rod combined frame according to the present utility model;

FIG. 5 is a schematic view of a cross arrangement of anchor rods and anchor cables of a pre-stressed anchor cable and anchor rod combination frame according to the present utility model;

fig. 6 is a schematic view of the penetrating structure of the anchoring mechanism of the combined frame of the prestressed anchorage cable and the anchor rod according to the present utility model;

fig. 7 is a schematic diagram of a cooperation structure of a pre-stressed anchor cable and anchor rods and anchor cables of a bottom row of an anchor rod combination frame according to the utility model.

The reference numerals are explained as follows:

1. slope; 2. a combination rack; 3. an anchoring mechanism; 4. a turf planting area; 21. longitudinal ribs; 22. a cross beam; 23. a mounting hole; 211. a bracket; 31. a bolt; 32. an anchor cable; 321. and (5) fixing the anchor cable.

Detailed Description

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art in a specific case.

The utility model is further described below with reference to the accompanying drawings:

examples

As shown in fig. 1-7, a combined frame of a prestressed anchor cable and an anchor rod comprises a combined frame 2 used for supporting on a side slope 1 and an anchoring mechanism 3 used for fixing the combined frame 2, wherein a plurality of combined frames 2 are arranged on the side slope 1, the combined frames 2 are connected with the anchoring mechanism 3 in a penetrating manner, and the anchoring mechanism 3 is inserted into the side slope 1;

the combined frame 2 comprises a longitudinal rib 21 and a cross beam 22, wherein the longitudinal rib 21 and the cross beam 22 are vertically and cross-connected, a mounting hole 23 is formed at the cross point of the longitudinal rib 21 and the cross beam 22, the longitudinal rib 21 comprises an upper slope-pasting beam and a lower bracket 211, a turf planting area is arranged in the cross space of the longitudinal rib 21 and the cross beam 22, and a soil layer is further solidified by utilizing turf, so that water and soil loss is reduced;

the anchoring mechanism 3 comprises anchor rods 31 and anchor cables 32, the anchor rods 31 and the anchor cables 32 are connected with the side slope 1 through mounting holes 23, the anchor rods 31 and the anchor cables 32 are transversely arranged at intervals and are positioned on the bottom mounting holes 23 of each group of combined frames 2 and penetrate through the anchor rods 31 and the anchor cables 32 at the same time.

In this embodiment: each group of the sectional frames 2 includes five cross members 22 and three longitudinal ribs 21.

In this embodiment: the anchor line 32 includes a free section and a fixed section.

In this embodiment: the anchor rope 32 free section comprises the steel strand wires, and anchor rope 32 fixed section comprises the anchor slip casting body, and anchor rope 32 passes the multilayer sliding surface, and deep stabilization stratum plays and provides anti-skidding counter-force effect for the side slope.

In this embodiment: the longitudinal ribs 21 and the cross beams 22 are formed by pouring reinforced concrete, so that the construction strength and the fixing effect are ensured.

Working principle: firstly, leveling a slope when constructing a combined frame of the stress anchor cable 32 and the anchor rod 31, then measuring and paying off to determine the drilling positions of the pre-stress anchor cable 32 and the anchor rod 31, drilling, respectively placing the anchor heads of the anchor cable 32 and the reinforcing steel bars of the anchor rod 31, and pouring C30 concrete;

sleeving a steel strand of the anchor cable 32 leaking out of the ground surface with a protective tube, keeping the length of the main reinforcement of the anchor rod 31 leaking out of the ground surface for 1m, binding the longitudinal ribs 21 of the frame and the steel reinforcement cages of the cross beam 22, fixing the protective tube at the upper part of the anchor cable 32 at the crossing point of the longitudinal ribs 21 and the cross beam 22, binding the steel reinforcement of the anchor rod 31 leaking out of the ground surface with the main reinforcement of the longitudinal ribs 21, penetrating the steel leakage reinforcement of the anchor rod 31 by the protective tube of the anchor cable 32 at the lowest row, and pouring concrete of the longitudinal ribs 21 and the cross beam 22;

pre-stressing the anchor lines 32 when the concrete reaches a design strength;

the anchor cables 32 and the anchor rods 31 are alternately arranged in the slope body, the anchor cables 32 consist of grouting bodies of anchor sections and steel strands of free sections, and the anchor cables 32 penetrate through multiple layers of sliding surfaces and penetrate into stable rock strata, so that an anti-sliding reaction force effect is provided for the slope; the anchor rod 31 penetrates through the surface sliding surface and penetrates into the middle sliding body, so that the shearing strength of the surface sliding body is enhanced, the thrust of the surface sliding body is transmitted to the middle sliding body, and the stability coefficient of the shallow sliding body is improved. The anchor cable 32 and the anchor rod 31 in the lowest row share one anchor hole, and the anchor cable 32 passes through the top of the anchor rod 31 to form a pile-anchor combined system, so that the anti-skid bearing capacity of the combined frame 2 of the frame of the structure is improved.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims.

Claims

1. The utility model provides a prestressed anchorage cable and stock combination frame which characterized in that: the combined side slope comprises a combined frame (2) and an anchoring mechanism (3), wherein the combined frame (2) is supported on a side slope (1), the anchoring mechanism (3) is used for fixing the combined frame (2), a plurality of combined frames (2) are installed on the side slope (1), the anchoring mechanism (3) is connected to the combined frame (2) in a penetrating mode, and the anchoring mechanism (3) is inserted into the side slope (1);

the combined frame (2) comprises a longitudinal rib (21) and a cross beam (22), wherein the longitudinal rib (21) and the cross beam (22) are vertically and cross-connected, a mounting hole (23) is formed in the cross point of the longitudinal rib (21) and the cross beam (22), and the longitudinal rib (21) comprises an upper slope-pasting beam and a lower bracket (211);

the anchoring mechanism (3) comprises anchor rods (31) and anchor cables (32), the anchor rods (31) and the anchor cables (32) are connected with the side slope (1) through the mounting holes (23), the anchor rods (31) and the anchor cables (32) are transversely arranged at intervals and are located on one row of mounting holes (23) at the bottom of each combined frame (2) and penetrate through the anchor rods (31) and the anchor cables (32) simultaneously.

2. A pre-stressed anchor and bolt combination as defined in claim 1, wherein: each group of combined frames (2) comprises five cross beams (22) and three longitudinal ribs (21).

3. A pre-stressed anchor and bolt combination as defined in claim 1, wherein: the anchor line (32) includes a free section and a fixed section.

4. A pre-stressed anchor line and bolt combination frame as claimed in claim 3, wherein: the free section of the anchor cable (32) is composed of steel strands, and the fixed section of the anchor cable (32) is composed of grouting anchoring bodies.

5. A pre-stressed anchor and bolt combination as defined in claim 1, wherein: the longitudinal ribs (21) and the cross beams (22) are formed by pouring reinforced concrete.