Suspended cable-shaped flexible slope anchoring structure

Abstract

A suspension cable-shaped flexible side slope anchoring structure, as shown in Figure 2, comprises a main anchor beam 1, a ground pile top anchor 2, a main anchor beam end anchor 3, a main anchor beam transverse anchor 4, a ground pile top link 5, a ground pile pull-up anchor beam 6, a main anchor beam pull-up anchor beam 61, a ground pile group 7 and a pressure-bearing anchor rod 8.

Description

Technical Field

[0001] The utility model belongs to the field of geotechnical engineering, and relates to a slope anchoring structure, in particular to a suspension cable-shaped flexible slope anchoring structure. Background Technique

[0002] In the field of slope support, flexible active slope protection nets, prestressed anchor cable frames and anti-slide piles are widely used. Among them, flexible slope protection nets are used for the reinforcement and protection of soil or rock slopes with potential geological disasters such as collapse, landslide, shallow sliding, and dangerous rock falling, while prestressed anchor cable frames and anti-slide piles are mainly applied in engineering fields such as deep slope sliding, large-scale landslides, and slope protection.

[0003] However, the prestressed anchor cable frame technology and anti-slide piles currently have the following disadvantages:

[0004] 1. The frame has a large volume. Especially in the case of large landslide thrust, the amount of reinforced concrete in the frame structure is very large, and the large proportion of the concrete area on the slope makes it difficult to achieve slope greening.

[0005] 2. The construction of the slope frame is very difficult, and the construction speed is slow, which is especially not suitable for emergency rescue or temporary projects.

[0006] 3. It is not suitable for rapid large-scale construction, and it is very difficult to achieve mechanical or semi-mechanical construction.

[0007] 4. For shallow landslides or preventing shallow collapses, the prestressed anchor cable (bolt) frame causes huge waste of the project. In addition, the self-weight of the frame leads to an unsatisfactory anti-collapse effect on the slope.

[0008] 5. The prestressed anchor cable (bolt) frame is divided into products, and the products are separated by expansion joints. As a result, once a local collapse occurs, the nearby frames cannot play a role in joint anti-sliding.

[0009] To solve the above problems, a new type of slope support structure (2020111993475, 2020224768983) proposes a new solution. On the one hand, it gives full play to the advantages of the flexible protection net, such as fast construction speed, beneficial to slope greening, low project cost, and the whole slope being connected as a whole. On the other hand, it makes full use of the strong anchoring force of the prestressed anchor cable in the prestressed anchor cable (bolt) anchor beam frame structure to achieve the treatment effect on deep landslides.

[0010] A new type of flexible slope anchoring structure (2020112978843, 202022680200X) avoids the damage of the engineering anchor cable structure caused by the activities of the landslide body while improving the safety of the slope body, effectively eliminates the hazards caused by the corrosion and failure of the anchor cables near the slip surface, effectively establishes a strong connection between the anchor beam and the landslide body through the effective combination of anchor cables, anchor rods and anchor beams, reduces the project cost, speeds up the construction progress, shortens the construction period, increases the reliability of the structure, and at the same time provides an important foundation for slope greening and environmental friendliness.

[0011] A suspension cable-shaped and cable-stayed flexible composite slope support structure (2021212891924, 2021106450505) greatly saves the slope support cost through the suspension cable-shaped structure and improves the flexibility and reliability of slope support.

[0012] However, the above solutions still have the following problems:

[0013] 1. The layout line type of the suspension cable part of the suspension cable-shaped anchor beam has very large limitations, and there is a big gap between the actual slope line type and the theoretical suspension cable-shaped line type, making the actual implementation very difficult.

[0014] 2. Setting the density of the landing piles on the suspension cable-shaped anchor beam too large will greatly increase the project cost.

[0015] 3. The safety and stability of the slope above the suspension cable-shaped anchor beam are lacking.

[0016] 4. After the line type of the suspension cable-shaped anchor beam is determined, the greater the longitudinal friction and transverse friction are, the better, to ensure the stability of the line type of the whole anchor beam after a major change in the load. Therefore, the structure of the suspension cable-shaped anchor beam needs to be optimized. Therefore, a new solution is needed to solve the above problems. Utility Model Content

[0017] In order to solve the above disadvantages, the present utility model relates to a suspension cable-shaped flexible slope anchoring structure, and the specific content is as follows:

[0018] A suspension cable-shaped flexible slope anchoring structure is composed of a main anchor beam 1, a landing pile top anchor block 2, a main anchor beam end anchor block 3, a main anchor beam transverse anchor block 4, a landing pile top link 5, a landing pile upward-pulling anchor beam 6, a main anchor beam upward-pulling anchor beam 61, a landing pile group 7, and a bearing anchor rod 8.

[0019] Its characteristics are: both ends of the main anchor beam 1 are connected to the main anchor beam end anchor block 3 located in the stable stratum of the slope body, and several landing pile groups 7, several main anchor beam transverse anchor blocks 4, several main anchor beam upward-pulling anchor beams 61, and several bearing anchor rods 8 are arranged in the middle section of the main anchor beam 1.

[0020] The top of the floor pile group 7 is provided with a floor pile top link 5. The main anchor beam 1 passes through the floor pile top link 5 and is fixed to the top of the floor pile group 7. The floor pile top link 5 is connected to a floor pile top anchor block 2 on the mountain side, and the floor pile top link 5 is connected to a floor pile up-pulling anchor beam 6 downward along the slope.

[0021] The main anchor beam up-pulling anchor beam 61 is directly and mechanically connected and fixed to the main anchor beam 1.

[0022] The main anchor beam transverse anchor block 4 is arranged on the main anchor beam 1 at a relatively sunken part of the slope. The main anchor beam transverse anchor block 4 is a cable or an enlarged anchoring end structure, and the main anchor beam transverse anchor block 4 is mechanically connected and fixed to the main anchor beam 1.

[0023] The pressure-bearing anchor rod 8 is composed of n≥1 anchor rods, is arranged on the main anchor beam 1 at a relatively protruding part of the slope, and is mechanically connected between the pressure-bearing anchor rod 8 and the main anchor beam 1.

[0024] The utility model relates to a suspension cable-shaped flexible slope anchoring structure. Both ends of the main anchor beam 1 are fixed in a stable stratum through main anchor beam end anchor blocks 3. A plurality of floor pile groups 7 are arranged in the middle section of the main anchor beam 1, and a plurality of main anchor beam transverse anchor blocks 4 fix the whole main anchor beam 1 in the stratum near the ground surface.

[0025] The top of the floor pile group 7 is provided with a floor pile top link 5. The main anchor beam 1 passes through the floor pile top link 5 and is fixed to the top of the floor pile group 7. The floor pile top link 5 is connected to a floor pile top anchor block 2 on the mountain side, and the floor pile top link 5 is connected to a floor pile up-pulling anchor beam 6 downward along the slope.

[0026] The main anchor beam up-pulling anchor beam 61 is directly and mechanically connected and fixed to the main anchor beam 1.

[0027] The main anchor beam transverse anchor block 4 is arranged on the main anchor beam 1 at a relatively sunken part of the slope. The main anchor beam transverse anchor block 4 is a cable or an enlarged anchoring end structure, and the main anchor beam transverse anchor block 4 is mechanically connected and fixed to the main anchor beam 1.

[0028] The pressure-bearing anchor rod 8 is composed of n≥1 anchor rods, is arranged on the main anchor beam 1 at a relatively protruding part of the slope, and is mechanically connected between the pressure-bearing anchor rod 8 and the main anchor beam 1.

[0029] Its working principle is as follows:

[0030] Both ends of the main anchor beam 1 are fixed in a stable stratum through main anchor beam end anchor blocks 3.

[0031] Several landing pile groups 7 are arranged in the middle section of the main anchor beam 1. A landing pile top connection 5 is arranged at the top of the landing pile group 7. The main anchor beam 1 passes through the landing pile top connection 5 and is fixed at the top of the landing pile group 7. A landing pile top anchor block 2 is connected to the mountain side of the landing pile top connection 5. The landing pile group 7 and the connected landing pile top anchor block 2 provide the main upward and inward support for the middle section of the entire main anchor beam 1.

[0032] A main anchor beam transverse anchor block 4 is arranged on the main anchor beam 1 located at a relatively sunken position on the slope surface. The main anchor beam transverse anchor block 4 provides an inward pulling force for the main anchor beam 1 to ensure that the entire linear shape of the main anchor beam 1 coincides with the sunken terrain of the ground surface, thereby ensuring that the main anchor beam 1 obtains protection on the ground surface and the maximum pile-side friction resistance, and thus overcoming the large changes in its linear shape and line position caused by the force changes of each adjacent landing pile group 7.

[0033] A bearing anchor rod 8 composed of n≥1 anchor rods is arranged on the main anchor beam 1 located at a relatively protruding position on the slope surface. The bearing anchor rod 8 provides support for the main anchor beam 1 to ensure the fixed position of the main anchor beam 1, and at the same time ensure the foundation bearing capacity and stability under the pressure of the main anchor beam 1 at the protruding position on the ground surface, thereby ensuring a stable linear shape and the maximum pile-side friction resistance of the main anchor beam 1 on the ground surface.

[0034] The landing pile top connection 5 of the landing pile group 7 is connected downward on the slope to a landing pile upward-pulling anchor beam 6, and the main anchor beam upward-pulling anchor beam 61 arranged on the main anchor beam 1 are both anchor beams distributed on the ground surface or in the strata. The suspension section of the main anchor beam 1 provides an upward pulling force for the slope body through the main anchor beam upward-pulling anchor beam 61.

[0035] The benefits of the present utility model are as follows: Implement a suspension-shaped flexible slope anchoring structure. By arranging the main anchor beam transverse anchor block 4 in the sunken section of the ground surface of the main anchor beam 1 to ensure the fitting of the main anchor beam 1 with the ground surface, and arranging the bearing anchor rod 8 on the main anchor beam 1 in the protruding section of the ground surface to limit the line position change of the main anchor beam 1 and ensure that the foundation bearing capacity meets the force requirements of the main anchor beam 1, the effective control of the line position of the main anchor beam 1 and the construction implementation are realized. Brief Description of the Drawings

[0036] Figure 1 It is a plan view of the present utility model;

[0037] Figure 2 Cross-sectional structure diagram of the landing pile;

[0038] Figure 3 Cross-sectional structure diagram of the main anchor beam transverse anchor block 4;

[0039] Figure 4 Cross-sectional structure diagram of the bearing anchor rod 8;

[0040] Figure 5 Planar structure diagram of Embodiment 2;

[0041] In the figure: main anchor beam 1, ground pile top anchor 2, main anchor beam end anchor 3, main anchor beam transverse anchor 4, ground pile top connection 5, ground pile pull-up anchor beam 6, main anchor beam pull-up anchor beam 61, ground pile group 7, bearing anchor rod 8, slip surface 12, slope surface 13, mountain ridge 14. Specific implementation mode

[0042] The following combines the attached Figure 1 , attached Figure 2 , attached Figure 3 , attached Figure 4 , attached Figure 5 The structure of the present utility model and its beneficial effects will be further described.

[0043] Embodiment 1

[0044] The application of a suspension cable-shaped flexible slope anchoring structure on a concave slope, its structure and implementation steps are as shown in the attached Figure 1 , attached Figure 2 , attached Figure 3 , attached Figure 4 shown, and it is composed of a main anchor beam 1, a ground pile top anchor 2, a main anchor beam end anchor 3, a main anchor beam transverse anchor 4, a ground pile top connection 5, a ground pile pull-up anchor beam 6, a main anchor beam pull-up anchor beam 61, a ground pile group 7, and a bearing anchor rod 8.

[0045] First, implement the linear layout and position determination of the main anchor beam 1. In the first step, construct the main anchor beam end anchor 3. In the second step, complete the layout construction of the ground pile group 7. In the third step, complete the construction of the ground pile top connection 5. Further complete the construction of the ground pile top anchor 2. In the fourth step, lay out the bearing anchor rod 8. In the fifth step, implement the construction of the main anchor beam transverse anchor 4. Finally, install the ground pile pull-up anchor beam 6 and the main anchor beam pull-up anchor beam 61;

[0046] Embodiment 2

[0047] As shown in the attached Figure 2 , attached Figure 3 , attached Figure 4 , Figure 5 shown, it is composed of a main anchor beam 1, a ground pile top anchor 2, a main anchor beam end anchor 3, a main anchor beam transverse anchor 4, a ground pile top connection 5, a ground pile pull-up anchor beam 6, a main anchor beam pull-up anchor beam 61, a ground pile group 7, and a bearing anchor rod 8. A suspension cable-shaped flexible slope anchoring structure has a relatively flat slope top, a straight or convex slope surface along the line, and a relatively large span distance between the ground pile groups 7. Other structures and implementation steps are the same as those in Embodiment 1.

Claims

1. A suspension cable-shaped flexible slope anchoring structure, comprising a main anchor beam (1), a ground pile top anchor (2), a main anchor beam end anchor (3), a main anchor beam transverse anchor (4), a ground pile top link (5), a ground pile upper pull-type anchor beam (6), a main anchor beam upper pull-type anchor beam (61), a ground pile group (7), and a pressure anchor rod (8); Its characteristics are: The two ends of the main anchor beam (1) are connected to the main anchor beam end anchors (3) located in the stable stratum of the slope, and the middle section of the main anchor beam (1) is provided with a plurality of ground pile groups (7), a plurality of main anchor beam transverse anchors (4), a plurality of main anchor beam pull-up anchor beams (61) and a plurality of pressure anchor rods (8); The top of the ground pile group (7) is provided with a ground pile top link (5), the main anchor beam (1) passes through the ground pile top link (5) and is fixed to the top of the ground pile group (7), the ground pile top link (5) is connected to the ground pile top anchor (2) on the mountain side, and the ground pile top link (5) is connected to the ground pile pull-up anchor beam (6) on the slope surface downward; The main anchor beam pull-up anchor beam (61) is directly fixed to the main anchor beam (1) through mechanical connection.

2. A suspension cable-shaped flexible slope anchoring structure according to claim 1, characterized in that: The main anchor beam transverse anchor (4) is arranged on the main anchor beam (1) at a relatively concave position on the slope surface. The main anchor beam transverse anchor (4) is an anchor cable or an anchor end expansion structure. The main anchor beam transverse anchor (4) and the main anchor beam (1) are fixed together through mechanical connection.

3. The cable-shaped flexible slope anchoring structure according to claim 1, characterized in that: The pressure-bearing anchor rod (8) is composed of n≥1 anchor rods and is arranged on a main anchor beam (1) at a relatively protruding portion of the slope surface. The pressure-bearing anchor rod (8) and the main anchor beam (1) are mechanically connected together.

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