Novel structure for anchoring upper end of inclined anchor cable

Abstract

A novel structure for anchoring the upper end of an upward-inclined anchor cable is composed of a landing pile 1, an anchor cable 2, a near-surface anchor beam 3, the upward-inclined anchor cable 4, a pile top connector 5, a pressure-bearing anchor rod 8, a suspension cable-shaped anchor beam sleeve 9, a suspension cable-shaped anchor beam 10, a top groove 11, an anchor cable anchoring section 12, a landing pile sub-pile 13 and a baffle 14.

Description

Technical Field

[0001] The utility model belongs to the field of geotechnical engineering, and relates to a new structure for the upper-end anchorage of an inclined-upward anchor cable, specifically a new structure for the upper-end anchorage of an inclined-upward anchor cable. Background Technique

[0002] In the field of slope support, a new anti-slide pile support system (202110713775.3), a new flexible slope support structure (202022680200.X), a suspension cable-shaped and cable-stayed composite flexible slope anchorage structure (202110645050.5), a new flexible slope support structure (202011297884.3), a new anti-slide pile support system (202121429683.4), a new slope support structure (202011199347.5), and the above patent technologies all involve the upper-end anchorage structure of an inclined-upward anchor cable (anchor beam).

[0003] The upper end of the upward-pulling inclined-upward anchor cable (anchor beam) is finally anchored in the stable formation at the upper end of the unstable slope body through the anchor cable or anchor technology. To ensure the safety and reliability of the anchorage effect, it is necessary to set up a cast-in-place pile to eliminate the adverse impact of the downward reaction force of the anchor beam (anchor cable) on the slope stability:

[0004] The existing cast-in-place piles are mainly vertically arranged in the cross-section perpendicular to the slope surface. The vertical cast-in-place piles are likely to cause a large load on the slope body below the pile tip by the pile tip load, which will have an adverse impact on the slope stability. In the design, the pile length is often increased and the elevation of the pile tip of the cast-in-place pile is reduced to eliminate the adverse impact of the pile tip load of the cast-in-place pile on the slope stability.

[0005] On the other hand, the load generated by the anchor beam (anchor cable) or suspension cable structure arranged on the top of the cast-in-place pile is unevenly distributed on both sides in the slope surface direction, which will cause damage to the structure at the top of the cast-in-place pile.

[0006] To solve the above problems, a new solution is needed to solve the above problems. Content of the Utility Model

[0007] In order to achieve the above purpose, the utility model relates to a new structure for the upper-end anchorage of an inclined-upward anchor cable, and the specific content is as follows:

[0008] A new structure for the upper-end anchorage of an inclined-upward anchor cable is composed of a cast-in-place pile 1, an anchor cable 2, a near-surface anchor beam 3, an inclined-upward anchor cable 4, a pile-top connection 5, a bearing anchor rod 8, a suspension cable-shaped anchor beam sleeve 9, a suspension cable-shaped anchor beam 10, a top groove 11, an anchor cable anchorage section 12, a cast-in-place pile sub-pile 13, and a baffle 14.

[0009] It is characterized in that: the floor pile 1 is a group pile composed of one or more inclined-downward floor pile sub-piles 13 towards the mountain, and the inclination angles α of each floor pile sub-pile 13 in the cross-section perpendicular to the slope surface satisfy β>α≧0°, where the angle β is the included angle between the direction after the clustering of the anchor cables 2 and the vertical line in the cross-sectional view perpendicular to the slope surface.

[0010] When there are more than one floor pile sub-piles 13 forming the floor pile 1, the maximum included angle m between the floor pile sub-piles 13 of the same floor pile is not greater than 90°.

[0011] A pile top connection 5 is provided at the top of the floor pile 1. A top groove 11 is longitudinally provided at the top of the pile top connection 5, and a suspension cable-shaped anchor beam sleeve 9 is horizontally provided in the middle of the pile top connection 5. The two ends of the suspension cable-shaped anchor beam 10 are connected to the anchor cable 2 through the top groove 11 at the top of the pile top connection 5, and the middle part of the suspension cable-shaped anchor beam 10 passes through the suspension cable-shaped anchor beam sleeve 9 and is thus fixed on the pile top connection 5.

[0012] The baffle 14 is placed on the side of the pile top connection 5 adjacent to the mountain-facing free face, and the baffle 14 is locked on the extended section of the anchor cable 2 through an anchor.

[0013] The top groove 11 is provided at the top of the pile top connection 5, and the concave side direction is parallel to the direction after the clustering of the anchor cables 2.

[0014] The utility model is a new structure for the upper-end anchoring of an inclined-upward anchor cable. The near-surface anchor beam 3, the inclined-upward anchor cables 4 distributed on both sides of the floor pile 1 in the direction parallel to the slope surface, the two ends of the suspension cable-shaped anchor beam 10 are connected to the anchor cable 2 through the top groove 11 longitudinally provided at the top of the pile top connection 5, the middle part of the suspension cable-shaped anchor beam 10 and the pile top connection 5 are connected to the floor pile 1 through the suspension cable-shaped anchor beam sleeve 9, a baffle 14 is provided on the side of the pile top connection 5 adjacent to the mountain-facing free face, the baffle 14 is locked on the extended section of the anchor cable 2 through an anchor, and the remaining inclined-upward anchor cables 4 are directly connected to the suspension cable-shaped anchor beam 10.

[0015] The floor pile 1 is a group pile composed of one or more floor pile sub-piles 13. The tops of the group piles are connected together by the pile top connection 5 for each floor pile sub-pile 13. The maximum included angle m between the floor pile sub-piles 13 of the same floor pile is not greater than 90°. The included angles α between each floor pile sub-pile 13 and the vertical line satisfy β>α≧0°, where the angle β is the included angle between the direction after the clustering of the anchor cables 2 and the vertical line in the cross-sectional view perpendicular to the slope surface.

[0016] A new structure for upper - end anchoring of inclined upward cables. Its principle is as follows: The cast - in - place pile 1 fixes the suspended - cable - shaped anchor beam 10 at the top of the cast - in - place pile 1 through the pile - top connection 5. In the cross - section parallel to the slope surface, the inclined upward cable 4 close to the cast - in - place pile is connected to the cable 2 through the top groove 11 longitudinally arranged at the top of the pile - top connection 5, and the remaining inclined upward cables 4 are directly fixed on the suspended - cable - shaped anchor beam 10. The cast - in - place pile 1 with an upper part inclined towards the free face of the slope body is a group pile composed of one or more sub - piles 13 of the cast - in - place pile, with the pile tip pointing towards the mountain side. The cast - in - place pile 1 bears the vertical load components of the near - surface anchor beam 3, the inclined upward cable 4, the suspended - cable - shaped anchor beam 10, and the cable 2.

[0017] The benefits of the present utility model are as follows: By making the upper end of the cast - in - place pile 1 incline towards the free face of the slope, the pile - tip pressure of the sub - piles 13 of the cast - in - place pile after bearing pressure all points towards the mountain side, effectively avoiding or reducing the sliding load generated by the pile - tip pressure of the cast - in - place pile 1. Furthermore, the pile length of the cast - in - place pile is reduced, and the project cost is lowered. At the same time, the cast - in - place pile 1 adopts a group - pile structure, avoiding the bending failure of the sub - piles 13 of the cast - in - place pile caused by uneven bearing capacity in all directions, and greatly increasing the safety of the structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic cross - section layout diagram of the present utility model;

[0019] Figure 2 is a schematic plan layout diagram of a new structure for upper - end anchoring of inclined upward cables;

[0020] Figure 3 is a schematic elevation layout diagram of Embodiment 1;

[0021] Figure 4 is a schematic elevation layout diagram of Embodiment 2;

[0022] Figure 5 is a schematic elevation layout diagram of Embodiment 3;

[0023] In the figure: cast - in - place pile 1, cable 2, near - surface anchor beam 3, inclined upward cable 4, pile - top connection 5, slip surface 6, original ground line 7, bearing anchor 8, suspended - cable - shaped anchor beam sleeve 9, suspended - cable - shaped anchor beam 10, top groove 11, cable anchorage section 12, sub - pile 13 of the cast - in - place pile, baffle 14. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] The following Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 is used to further illustrate the structure and its beneficial effects of the present utility model.

[0025] Embodiment 1

[0026] An application of a new structure for upper - end anchoring of inclined upward cables, such asFigure 1 , Figure 2 , Figure 3 As shown in the figure, it is composed of a floor pile 1, a cable anchor 2, a near-surface anchor beam 3, an inclined upward cable anchor 4, a pile top connection 5, a slip surface 6, an original ground line 7, a bearing anchor rod 8, a suspension cable-shaped anchor beam sleeve 9, a suspension cable-shaped anchor beam 10, a top groove 11, a cable anchor anchorage section 12, a floor pile sub-pile 13, and a baffle 14.

[0027] First, implement the floor pile 1, the cable anchor 2, the pile top connection 5, and the suspension cable-shaped anchor beam sleeve 9.

[0028] Further, complete the inclined upward cable anchor 4, the baffle 14, the near-surface anchor beam 3, and lock the baffle 14 to the extended section of the cable anchor 2, which is placed on the side of the pile top connection 5 close to the free face of the slope.

[0029] Furthermore, the inclined upward cable anchors 4, the cable anchors 2, and the near-surface anchor beams 3 distributed on both sides of the floor pile 1 in the direction parallel to the slope surface are connected and tensioned and locked at the pile top connection 5.

[0030] Furthermore, implement the suspension cable-shaped anchor beam 10. The two ends of the suspension cable-shaped anchor beam 10 are connected together through the top groove 11 of the pile top connection 5 and the cable anchor 2, and the middle part of the suspension cable-shaped anchor beam 10 passes through the suspension cable-shaped anchor beam sleeve 9 of the pile top connection 5.

[0031] Finally, connect the remaining inclined upward cable anchors 4 and the suspension cable-shaped anchor beam 10 and implement tensioning and locking.

[0032] Embodiment 2

[0033] As Figure 1 , Figure 2 , Figure 4 shown, a new structure for the upper end anchorage of an inclined upward cable anchor is composed of a floor pile 1, a cable anchor 2, a near-surface anchor beam 3, an inclined upward cable anchor 4, a pile top connection 5, a slip surface 6, an original ground line 7, a bearing anchor rod 8, a suspension cable-shaped anchor beam sleeve 9, a suspension cable-shaped anchor beam 10, a top groove 11, a cable anchor anchorage section 12, a floor pile sub-pile 13, and a baffle 14.

[0034] In the embodiment where the floor pile sub-piles 13 of the floor pile 1 are distributed in two rows in a herringbone pattern in the direction parallel to the slope surface; other structures and implementation steps are the same as those in Embodiment 1.

[0035] Embodiment 3

[0036] Figure 1 , Figure 2 , Figure 5 shown, a new structure for the upper end anchorage of an inclined upward cable anchor is composed of a floor pile 1, a cable anchor 2, a near-surface anchor beam 3, an inclined upward cable anchor 4, a pile top connection 5, a slip surface 6, an original ground line 7, a bearing anchor rod 8, a suspension cable-shaped anchor beam sleeve 9, a suspension cable-shaped anchor beam 10, a top groove 11, a cable anchor anchorage section 12, a floor pile sub-pile 13, and a baffle 14.

[0037] In the embodiment where the stub piles 13 of the landing piles 1 are distributed in a single row parallel to the slope surface, the other structures and implementation steps are the same as those in Embodiment 1.

Claims

1. A new anchor structure for the upper end of an inclined anchor cable, comprising a ground pile (1), an anchor cable (2), a near-surface anchor beam (3), an inclined anchor cable (4), a pile top connection (5), a pressure anchor rod (8), a suspension cable anchor beam casing (9), a suspension cable anchor beam (10), a top groove (11), an anchor cable anchoring section (12), a ground pile sub-pile (13), and a baffle (14); Features: The ground pile (1) is a group of piles consisting of one or more ground piles (13) inclined downwards, each ground pile (13) being inclined at an angle α on a cross section perpendicular to the slope, β>α≧0°, wherein the angle β is the angle between the direction of the anchor cable (2) after being bunched on the cross section (1) perpendicular to the slope and the vertical line; When there are more than one ground pile sub-piles (13) constituting the ground pile (1), the maximum angle m between the ground pile sub-piles (13) of the same ground pile is not greater than 90°; A pile top connection (5) is arranged at the top of the ground pile (1), a top groove (11) is longitudinally arranged at the top of the pile top connection (5), a suspension cable-shaped anchor beam sleeve (9) is transversely arranged in the middle of the pile top connection (5), wherein both ends of the suspension cable-shaped anchor beam (10) are connected to the anchor cable (2) through the top groove (11) of the pile top connection (5), and the middle of the suspension cable-shaped anchor beam (10) passes through the suspension cable-shaped anchor beam sleeve (9), thereby being fixed on the pile top connection (5).

2. A novel upper end anchoring structure of an inclined anchor cable as claimed in claim 1, characterized in that: The baffle (14) is placed on the side of the pile top connection (5) facing the free surface of the mountain body, and the baffle (14) is locked on the extension section of the anchor cable (2) through an anchor.

3. A novel upper end anchoring structure of an inclined anchor cable as claimed in claim 1, characterized in that: The top groove (11) is arranged at the top of the pile top connection (5), and the concave side direction is parallel to the direction of the anchor cable (2) after being bunched.

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