Inclined pile vertical anchor rod supporting structure for foundation pit supporting

Abstract

The inclined pile vertical anchor rod supporting structure comprises a foundation pit body, a top end cross beam is arranged on one side of the top of the foundation pit body, a bottom end fixing plate is arranged at the bottom of one side of the foundation pit body, and a plurality of inclined columns are fixedly connected to one side between the top end cross beam and the bottom end fixing plate. And second middle end reinforcing plates are arranged at the positions, close to the top and the bottom, of the ends, close to the foundation pit body, of the multiple inclined columns correspondingly. According to the inclined pile vertical anchor rod supporting structure for foundation pit supporting, the second side end fixing cone penetrates through the second middle end reinforcing plate to be embedded into the soil body, the first side end fixing cone is directly fixed to the bottom end fixing plate and extends to the soil body, a two-way anchoring system is formed by the second side end fixing cone and the first side end fixing cone, the friction force between an inclined column and the soil body is remarkably improved, and interface slippage is restrained; the insulation non-slip mat is tightly attached to the outer surface of the batter post, physical skid resistance is achieved through a rubber composite material, meanwhile, an underground water seepage path is blocked, and the soil softening risk is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a support structure technical field, concretely to a inclined pile vertical anchor rod support structure for foundation pit support. BACKGROUND

[0002] The foundation pit refers to the deep pit or deep groove formed in the soil or rock, is usually used in various underground engineering and construction, and the inclined pile vertical anchor rod support structure is used when the foundation pit needs to be protected, the inclined pile vertical anchor rod support is a commonly used foundation pit support method, and the stability and anti -skidding performance of the foundation pit can be effectively improved through the combination of the inclined pile and the vertical anchor rod.

[0003] The contact surface of the traditional inclined column and the soil lacks effective reinforcement measures, is easily affected by soil creep and seepage, causes relative sliding between the inclined column and the soil, reduces the overall stability of the support structure, especially in soft soil foundation or high groundwater level area, the softening phenomenon of the soil at the bottom of the inclined column is remarkable, further aggravates the interface instability risk, the bending performance of the inclined column directly affects the bearing capacity of the support structure as the main stressed member, the traditional design often only pays attention to the anchoring of the end of the inclined column and ignores the bending resistance demand of the middle region, when the excavation depth of the foundation pit is large or the soil pressure distribution is uneven, the middle part of the inclined column is easy to bend and deform, and even causes local buckling damage, threatening the safety of the support structure. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a inclined pile vertical anchor rod support structure for foundation pit support to solve the problem that the contact surface of the traditional inclined column and the soil lacks effective reinforcement measures, is easily affected by soil creep and seepage, causes relative sliding between the inclined column and the soil, reduces the overall stability of the support structure, especially in soft soil foundation or high groundwater level area, the softening phenomenon of the soil at the bottom of the inclined column is remarkable, further aggravates the interface instability risk, the bending performance of the inclined column directly affects the bearing capacity of the support structure as the main stressed member, the traditional design often only pays attention to the anchoring of the end of the inclined column and ignores the bending resistance demand of the middle region, when the excavation depth of the foundation pit is large or the soil pressure distribution is uneven, the middle part of the inclined column is easy to bend and deform, and even causes local buckling damage, threatening the safety of the support structure.

[0005] In order to achieve the above object, the utility model provides the following technical scheme: a kind of inclined pile vertical anchor rod support structure for foundation pit support, the top of the foundation pit body is provided with top beam on one side, the bottom of the one side of the foundation pit body is provided with bottom end fixed plate, the one side between the top beam and bottom end fixed plate is fixedly connected with several inclined columns, the top position and the bottom position of the one end of the several inclined columns close to the foundation pit body are both provided with middle end reinforcing plate two, the top position and the bottom position of the one end of the several inclined columns away from the foundation pit body are both provided with middle end reinforcing plate one, the inside of the middle end reinforcing plate one and the inside of the middle end reinforcing plate two are respectively fixedly connected with inner plate one and inner plate two, the opposite end of the inner plate one and the inner plate two is respectively fixedly connected with several reinforcing rods one and several reinforcing rods two, the opposite side of the reinforcing rods one and the reinforcing rods two is respectively penetrated to the outside of the middle end reinforcing plate one and the middle end reinforcing plate two, the inside of the reinforcing rods one is equipped with sliding slot, the center of the one side of the reinforcing rods two is fixedly connected with recessed plate, the inside of the recessed plate is fixedly connected with two fixed nuts, the one side of the middle end reinforcing plate one is provided with limiting slide bar, the one side of the limiting slide bar is in turn penetrated the inside of the middle end reinforcing plate one, the inner plate one, the sliding slot, the recessed plate and two fixed nuts, the one side of the outer surface of the limiting slide bar is equipped with external thread, the external thread is threadedly connected with two fixed nuts.

[0006] Compared with the prior art, the utility model has the advantages of:

[0007] The inclined pile vertical anchor rod supporting structure for foundation pit support, through the side end fixed cone two embedded into the soil through the middle end reinforcing plate two, the side end fixed cone one is directly fixed to the bottom end fixed plate and extends to the soil, and both form a bidirectional anchoring system, significantly improves the friction between the inclined column and the soil, inhibits the interface slip, the insulating antiskid pad is tightly attached to the outer surface of the inclined column, realizes physical antiskid through the rubber composite material, simultaneously blocks the underground water seepage path, reduces the risk of soil softening, through the middle end reinforcing plate one arranged at the top and bottom of the inclined column and the middle end reinforcing plate two arranged at the middle part, a three-section bending resistance system is formed, the earth pressure is uniformly transmitted to the full length of the inclined column, the peak value of the middle bending moment is reduced, the reinforcing rod one and the reinforcing rod two are clamped through the positioning block and the positioning groove, a space truss structure is formed, the lateral deformation of the inclined column is effectively resisted, the limiting sliding rod penetrates the middle end reinforcing plate one, the inner plate one, the sliding groove, the concave plate and the fixed nut, is threadedly connected with the fixed nut through the external thread, realizes rigid constraint, ensures that the reinforcing components and the inclined column deform cooperatively, the adjacent reinforcing rod one and the reinforcing rod two are magnetically connected through the iron sheet plate on the connecting plate and the magnetic adsorption plate, a self-locking connecting system is formed, the overall structure is enhanced, the limiting sliding rod is threadedly connected with the fixed nut through the external thread, can apply pre-tightening force in the construction stage, and realizes prestress dynamic compensation through the sliding cooperation of the sliding groove and the concave plate, reduces the prestress loss, the middle end reinforcing plate one, the middle end reinforcing plate two and the reinforcing rod one and the reinforcing rod two adopt standardized module design, are quickly assembled on site through the limiting sliding rod and the fixed nut, and the construction efficiency is improved by 50%. BRIEF DESCRIPTION OF DRAWINGS

[0008] Figure 1 It is a structural schematic diagram of the utility model;

[0009] Figure 2 It is a structural schematic diagram of the utility model Figure 1 It is a partial enlarged schematic diagram of A in the utility model;

[0010] Figure 3 It is a side view schematic diagram of the middle end reinforcing plate one in the utility model;

[0011] Figure 4 It is a structural perspective view of the middle end reinforcing plate one and the middle end reinforcing plate two in the utility model.

[0012] In the drawing: 1, foundation pit body; 2, top end cross beam; 3, inclined column; 4, bottom end fixed plate; 5, bottom end fixed cone; 6, side end fixed cone one; 7, top end fixed cone; 8, middle end reinforcing plate one; 9, middle end reinforcing plate two; 10, reinforcing rod; 11, side end fixed cone two; 12, inner plate one; 13, inner plate two; 14, reinforcing rod one; 15, reinforcing rod two; 16, insulating antiskid pad; 17, sliding groove; 18, concave plate; 19, fixed nut; 20, limiting sliding rod; 21, external thread; 22, connecting plate; 23, magnetic adsorption plate; 24, iron sheet plate; 25, positioning groove; 26, positioning block. DETAILED DESCRIPTION

[0013] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0014] Please refer to Figures 1-4 The utility model provides a kind of technical scheme: a diagonal pile vertical anchor rod support structure for foundation pit support, including foundation pit body 1, the top of one side of foundation pit body 1 is provided with top beam 2, the bottom of one side of foundation pit body 1 is provided with bottom end fixed plate 4, between top beam 2 and bottom end fixed plate 4 one side is fixedly connected with several inclined columns 3, the top position and the bottom position close to one end of foundation pit body 1 of several inclined columns 3 are provided with middle end reinforcing plate two 9, the top position and the bottom position close to one end of foundation pit body 1 of several inclined columns 3 are provided with middle end reinforcing plate one 8, the inside of middle end reinforcing plate one 8 and the inside of middle end reinforcing plate two 9 are respectively fixedly connected with inner plate one 12 and inner plate two 13, the opposite end of inner plate one 12 and inner plate two 13 is respectively fixedly connected with several reinforcing rods one 14 and several reinforcing rods two 15, the opposite side of reinforcing rods one 14 and reinforcing rods two 15 is respectively penetrated to the outside of middle end reinforcing plate one 8 and middle end reinforcing plate two 9, the inside of reinforcing rods one 14 is provided with sliding slot 17, the center of one side of reinforcing rods two 15 is fixedly connected with concave plate 18, the inside of concave plate 18 is fixedly connected with two fixed nuts 19, one side of middle end reinforcing plate one 8 is provided with limit sliding rod 20, the inside of limit sliding rod 20 one side is sequentially penetrated middle end reinforcing plate one 8, inner plate one 12, sliding slot 17, concave plate 18 and two fixed nuts 19, the outside of limit sliding rod 20 surface one side is provided with external thread 21, external thread 21 is threadedly connected with two fixed nuts 19.

[0015] The top position of one side of top beam 2 is provided with several top fixed cones 7, the bottom of top fixed cone 7 is sequentially penetrated top beam 2 and foundation pit body 1 and extends to the inside of foundation pit body 1.

[0016] The top of one side of bottom end fixed plate 4 is provided with bottom fixed cone 5, the bottom of bottom fixed cone 5 is sequentially penetrated bottom end fixed plate 4 and foundation pit body 1 and extends to the inside of foundation pit body 1.

[0017] The one side of bottom end fixed plate 4 is fixedly connected with side end fixed cone one 6, the one side of side end fixed cone one 6 is penetrated to the inside of foundation pit body 1.

[0018] The side end fixed cone two 11 is fixedly connected to one side of the middle end reinforcing plate two 9, and penetrates to the inside of the foundation pit body 1.

[0019] The two middle end reinforcing plates one 8 arranged in the up-down direction are fixedly connected with a plurality of reinforcing rods 10. The reinforcing rod one 14 is provided with a positioning groove 25 at the top and the bottom. The reinforcing rod two 15 is provided with a positioning block 26 at the top and the bottom. The positioning block 26 penetrates to the inside of the positioning groove 25 and is clamped with the positioning groove 25.

[0020] The middle end reinforcing plate one 8 and the middle end reinforcing plate two 9 are fixedly connected with a plurality of insulating non-slip mats 16 at the opposite ends. The inner wall of the insulating non-slip mat 16 is close to the outer surface of the inclined column 3. The two reinforcing rods one 14 and the two reinforcing rods two 15 arranged in the front-rear direction are respectively located on the outer side of the inclined column 3.

[0021] The two reinforcing rods one 14 arranged in the up-down direction and the two reinforcing rods two 15 arranged in the up-down direction are fixedly connected with a connecting plate 22. The opposite ends of the two connecting plates 22 arranged in the left-right direction are respectively fixedly connected with an iron sheet plate 24 and a magnetic adsorption plate 23. The iron sheet plate 24 is magnetically connected with the magnetic adsorption plate 23.

[0022] Working principle: the top beam 2 penetrates the foundation body 1 and embeds into the soil through the top fixing cone 7, forming an upper anchoring point; the bottom fixing plate 4 embeds into the bottom and side wall of the foundation body 1 through the bottom fixing cone 5 and the side fixing cone 6, forming a lower anchoring point; the inclined column 3 is fixedly connected with the top beam 2 and the bottom fixing plate 4 at both ends, forming an inclined support system, transmitting the lateral soil pressure of the foundation pit to the inside of the foundation body 1; the middle reinforcing plate 8 is fixed on the side of the inclined column 3 away from the foundation body 1, and the middle reinforcing plate 9 is fixed on the side close to the foundation body 1, forming a bidirectional support node in the middle of the inclined column 3; the middle reinforcing plate 9 embeds into the soil through the side fixing cone 11, enhancing the friction between the inclined column 3 and the soil and inhibiting the interface slip; the insulating anti-skid pad 16 is tightly attached to the outer surface of the inclined column 3, blocking the groundwater seepage path through high-friction coefficient materials, reducing the influence of soil softening on the stability of the inclined column 3; the reinforcing rod 14 and the reinforcing rod 15 are fixed on the inner plate 12 and the inner plate 13 of the middle reinforcing plate 8 and the middle reinforcing plate 9 respectively, forming a spatial truss structure; the positioning block 26 of the reinforcing rod 14 is inserted into the positioning groove 25 of the reinforcing rod 15, realizing horizontal displacement limitation and enhancing the bending resistance; the middle reinforcing plate 8 arranged in upper and lower positions is connected through the reinforcing rod 10, forming a longitudinal bending resistance system, reducing the bending moment peak value in the middle of the inclined column 3; the limiting slide rod 20 penetrates the middle reinforcing plate 8, the inner plate 12, the sliding groove 17, the concave plate 18 and the fixing nut 19 in sequence, and is screwed with the fixing nut 19 through the external thread 21, realizing the rigid constraint of the reinforcing member and the inclined column 3; the sliding cooperation of the sliding groove 17 and the concave plate 18 allows the limiting slide rod 20 to adaptively adjust when the soil deforms, and the threaded connection of the external thread 21 and the fixing nut 19 realizes the dynamic compensation of prestress, reducing the loss of prestress; the reinforcing rod 14 arranged in upper and lower positions and the reinforcing rod 15 are connected through the connecting plate 22, forming a horizontal support system; the iron sheet plate 24 of the adjacent connecting plate 22 is magnetically adsorbed with the magnetic adsorption plate 23, forming a self-locking connection system, enhancing the overall integrity of the structure and preventing the relative displacement of the reinforcing members.

[0023] In summary: the inclined pile vertical anchor rod support structure for foundation pit support, through the side end fixed cone two 11 penetrates the middle end reinforcing plate two 9 and is embedded into the soil body, the side end fixed cone one 6 is directly fixed to the bottom end fixed plate 4 and extends to the soil body, and the two form a bidirectional anchoring system, significantly improve the friction between the inclined column 3 and the soil body, inhibit the interface slip, the insulating antiskid pad 16 is tightly attached to the outer surface of the inclined column 3, realizes physical antiskid through the rubber composite material, simultaneously blocks the groundwater seepage path, reduces the risk of soil softening, through the middle end reinforcing plate one 8 arranged at the top and bottom of the inclined column 3 and the middle end reinforcing plate two 9 arranged at the middle, a three-section bending resistance system is formed, the soil pressure is uniformly transmitted to the full length of the inclined column 3, the peak value of the middle bending moment is reduced, the reinforcing rod one 14 and the reinforcing rod two 15 are clamped through the positioning block 26 and the positioning groove 25, a space truss structure is formed, the lateral deformation of the inclined column 3 is effectively resisted, the limiting sliding rod 20 penetrates the middle end reinforcing plate one 8, the inner plate one 12, the sliding groove 17, the concave plate 18 and the fixed nut 19, is threadedly connected with the fixed nut 19 through the external thread 21, realizes rigid constraint, ensures that the reinforcing components and the inclined column 3 deform cooperatively, the adjacent reinforcing rod one 14 and the reinforcing rod two 15 are magnetically connected through the iron sheet plate 24 on the connecting plate 22 and the magnetic adsorption plate 23, a self-locking connection system is formed, the overall integrity of the structure is enhanced, the limiting sliding rod 20 is threadedly connected with the fixed nut 19 through the external thread 21, can apply a pre-tightening force during the construction stage, and realizes prestress dynamic compensation through the sliding cooperation of the sliding groove 17 and the concave plate 18, reduces the prestress loss, the middle end reinforcing plate one 8, the middle end reinforcing plate two 9 and the reinforcing rod one 14 and the reinforcing rod two 15 are designed in a standardized module, are quickly assembled on site through the limiting sliding rod 20 and the fixed nut 19, and the construction efficiency is improved by 50%.

[0024] It should be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0025] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A vertical anchor support structure for inclined piles used in foundation pit support, comprising a foundation pit body (1), characterized in that: A top beam (2) is provided on one side of the top of the foundation pit body (1), and a bottom fixing plate (4) is provided at the bottom of one side of the foundation pit body (1). Several inclined columns (3) are fixedly connected on one side between the top beam (2) and the bottom fixing plate (4). A middle reinforcement plate (9) is provided at the top and bottom positions of the several inclined columns (3) near the foundation pit body (1). A middle reinforcement plate (8) is provided at the top and bottom positions of the several inclined columns (3) away from the foundation pit body (1). An inner plate (12) and an inner plate (2) (13) are fixedly connected inside the inner plate (12) (8) and the inner plate (2) (9) respectively. Several reinforcement rods (14) and several reinforcement rods (2) (13) are fixedly connected at opposite ends of the inner plate (12) (12) and the inner plate (2) (13). 15) The opposite sides of the first reinforcing rod (14) and the second reinforcing rod (15) respectively penetrate to the outside of the first middle reinforcing plate (8) and the second middle reinforcing plate (9). The first reinforcing rod (14) has a sliding groove (17) inside. The center of one side of the second reinforcing rod (15) is fixedly connected to a concave plate (18). The concave plate (18) has two fixed nuts (19) fixedly connected inside. One side of the first middle reinforcing plate (8) is provided with a limiting slide rod (20). One side of the limiting slide rod (20) passes through the interior of the first middle reinforcing plate (8), the inner plate (12), the sliding groove (17), the concave plate (18) and the two fixed nuts (19) in sequence. One side of the outer surface of the limiting slide rod (20) is provided with an external thread (21). The external thread (21) is threadedly connected to the two fixed nuts (19).

2. The inclined pile vertical anchor support structure for foundation pit support according to claim 1, characterized in that: Several top fixing cones (7) are provided on one side of the top beam (2). The bottom of the top fixing cones (7) passes through the top beam (2) and the pit body (1) and extends into the interior of the pit body (1).

3. The inclined pile vertical anchor support structure for foundation pit support according to claim 1, characterized in that: A bottom fixing cone (5) is provided on one side of the top of the bottom fixing plate (4). The bottom of the bottom fixing cone (5) passes through the bottom fixing plate (4) and the pit body (1) in sequence and extends into the interior of the pit body (1).

4. The inclined pile vertical anchor support structure for foundation pit support according to claim 1, characterized in that: One side of the bottom fixing plate (4) is fixedly connected to a side fixing cone (6), and one side of the side fixing cone (6) extends into the interior of the pit body (1).

5. The inclined pile vertical anchor support structure for foundation pit support according to claim 1, characterized in that: One side of the middle reinforcement plate 2 (9) is fixedly connected to a side end fixing cone 2 (11), and one side of the side end fixing cone 2 (11) penetrates into the interior of the foundation pit body (1).

6. The inclined pile vertical anchor support structure for foundation pit support according to claim 1, characterized in that: Several reinforcing rods (10) are fixedly connected between two middle reinforcing plates (8) set at the top and bottom. Positioning grooves (25) are provided on the top and bottom positions of one side of the reinforcing rod (14). Positioning blocks (26) are fixedly connected on the top and bottom positions of one side of the reinforcing rod (14). One side of the positioning block (26) extends into the interior of the positioning groove (25) and engages with the positioning groove (25).

7. The inclined pile vertical anchor support structure for foundation pit support according to claim 1, characterized in that: Several insulating anti-slip pads (16) are fixedly connected to one end of the middle reinforcing plate 1 (8) and the middle reinforcing plate 2 (9). The inner wall of the insulating anti-slip pad (16) is in close contact with the outer surface of the inclined column (3). The two reinforcing rods 1 (14) and 2 (15) set in front and behind are located on the outside of the inclined column (3).

8. The inclined pile vertical anchor support structure for foundation pit support according to claim 1, characterized in that: A connecting plate (22) is fixedly connected between the two reinforcing rods 1 (14) set at the top and bottom and between the two reinforcing rods 2 (15) set at the top and bottom. An iron plate (24) and a magnetic adsorption plate (23) are fixedly connected to the opposite ends of the two connecting plates (22) set at the left and right respectively. The iron plate (24) and the magnetic adsorption plate (23) are magnetically connected.

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