CN217630078U

CN217630078U - High-strength retaining wall

Info

Publication number: CN217630078U
Application number: CN202221592507.7U
Authority: CN
Inventors: 孔维斌
Original assignee: Xiahe Qilianshan Andoo Cement Co ltd
Current assignee: Xiahe Qilianshan Andoo Cement Co ltd
Priority date: 2022-06-24
Filing date: 2022-06-24
Publication date: 2022-10-21
Anticipated expiration: 2032-06-24

Abstract

The utility model discloses a high strength retaining wall relates to retaining wall technical field. The utility model discloses a be provided with the pouring body that inserts the foundation pile, embedded in the strengthening rib net of the pouring body and the prestressed anchorage cable of slope insertion the pouring body, the pouring body includes vertical insertion foundation pile and sets up the fender apron on the top of inserting the foundation pile, the strengthening rib net including embedded in the baffle muscle of fender apron and embedded with the foundation pile muscle of inserting the foundation pile, insert the foundation pile with the fender apron is connected through the crown beam, prestressed anchorage cable's one end through fixing device with the fender apron joint, the other end passes the fender apron and personally submits 15 contained angles downwardly extending with the level; the soil layer is filled with soil, gravel sand and pebbles from top to bottom in sequence, and the purposes of stable installation and high structural strength are achieved.

Description

High-strength retaining wall

Technical Field

The utility model relates to a retaining wall technical field, specific high strength retaining wall that says so.

Background

The retaining wall is a structure for supporting roadbed filling or hillside soil and preventing the filling or soil from deforming and destabilizing.

In engineering practice, due to the fact that the soil layers are different in nature, the soil retaining wall needs to be designed in a targeted mode, on one hand, installation stability of the retaining wall is met, and on the other hand, stable blocking of the retaining wall on a hillside soil body needs to be met.

At present, for a hard soft soil layer sequentially comprising miscellaneous fill, gravel sand and pebbles from top to bottom, how to make a retaining wall have good stability is one of the problems to be solved urgently by using the retaining wall.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high strength retaining wall to the realization is from last to down in proper order for filling out soil, gravel and the soil layer of cobble, realizes that the installation is stable, purpose that structural strength is high.

In order to achieve the above purpose, the utility model adopts the following technical means:

a high-strength retaining wall comprises a casting body provided with an inserted foundation pile, a reinforcing rib net embedded in the casting body and a prestressed anchor cable obliquely inserted into the casting body, wherein the casting body comprises a vertical inserted foundation pile and a retaining plate arranged at the top end of the inserted foundation pile, the reinforcing rib net comprises a baffle rib embedded in the retaining plate and a foundation pile rib embedded in the inserted foundation pile, the inserted foundation pile is connected with the retaining plate through a crown beam, one end of the prestressed anchor cable is clamped with the retaining plate through a fixing device, and the other end of the prestressed anchor cable penetrates through the retaining plate and extends downwards with a 15-degree included angle formed between the retaining plate and the horizontal plane;

the prestressed anchorage cable includes blast pipe, mud jacking pipe and the encirclement of coaxial setting the blast pipe axis is provided with steel strand wires, the blast pipe sets up the tension area of steel strand wires, the mud jacking pipe sets up the anchor area of steel strand wires, be used for the centre gripping is installed to the one end of blast pipe the ground tackle of steel strand wires, the ground tackle orientation the one side of retaining soil board with still be provided with the steel backing plate between the retaining soil board, the blast pipe sets up in the anchor rope overcoat pipe, the steel strand wires sets up the blast pipe with between the anchor rope overcoat pipe.

Preferably, the retaining plate is provided with a retaining cover, and the anchorage device is arranged in the retaining cover.

Furthermore, the steel strands in the anchoring area are provided with lead wires and centering isolation frames at intervals, and the steel strands at the micro ends of the grouting pipes are provided with steel plates used for drawing the steel strands as guides.

Furthermore, the soil retaining plate is provided with drain holes in a distributed manner, one end of each drain hole, which is positioned on the soil layer, is covered and provided with a coarse aggregate reverse filter bag, and the baffle rib net is provided with reinforcing ribs arranged around the drain holes.

Further, the foundation pile and the crown beam share the foundation pile rib.

Furthermore, the top end of the retaining wall is provided with a connecting plate extending towards the soil surface, and the connecting plate is provided with a drainage ditch extending along the length direction of the retaining wall.

Further, a fence is installed on the top surface of the soil guard plate.

The utility model discloses at the in-process that uses, following beneficial effect has:

in the in-process of in-service use, the utility model discloses can be from last to the installation stable in the loose soil layer of middle level stereoplasm for fill out soil, gravel and cobble extremely down in proper order to utilize the setting of prestressed anchorage cable to improve the cohesion between fender board and the slight slope with the slight slope. Therefore, the soil retaining wall has the characteristic of high strength in a specific soil layer and has the characteristic of stable soil retaining effect in the using process.

Drawings

Fig. 1 is a front view of the structure of the present invention.

Fig. 2 is a schematic longitudinal sectional view of fig. 1.

FIG. 3 is the installation structure of the prestressed anchorage cable and the earth-retaining plate of the present invention.

Fig. 4 is a schematic view of a part a of the enlarged structure in fig. 3.

Fig. 5 is a schematic view of the structure of the drain hole of the utility model in the present year.

Fig. 6 is the schematic view of the installation structure of the inserted foundation pile and the crown beam of the present invention.

The method comprises the following steps of 1-inserting foundation piles, 2-soil retaining plates, 3-baffle ribs, 4-foundation pile ribs, 5-crown beams, 6-prestressed anchor cables, 61-exhaust pipes, 62-mud jacking pipes, 63-steel strands, 64-anchors, 65-steel backing plates, 66-anchor cable outer sleeves, 7-tensioning areas, 8-anchoring areas, 9-blocking covers, 10-lead wires, 11-centering isolation frames, 12-drainage holes, 13-coarse aggregate reverse filter bags, 14-connecting plates, 15-drainage ditches and 16-fences.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, could be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the present invention, the embodiments and the features of the embodiments may be combined with each other without conflict.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined or explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the directions or positional relationships based on the directions or positional relationships shown in the drawings, or the directions or positional relationships that the products of the present invention are usually placed when used, or the directions or positional relationships that the skilled person usually understand, and are only for the convenience of describing the present invention and simplifying the description, but not for indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.

Referring to fig. 1 to 6, a high strength retaining wall includes a cast body provided with an inserted base pile 1, a reinforcing bar net embedded in the cast body, and a prestressed anchor cable 6 obliquely inserted into the cast body, the cast body includes a vertical inserted base pile 1 and a retaining plate 2 disposed at a top end of the inserted base pile 1, the reinforcing bar net includes a baffle rib 3 embedded in the retaining plate 2 and a base pile rib 4 embedded in the inserted base pile 1, the inserted base pile 1 is connected to the retaining plate 2 by a crown beam 5, one end of the prestressed anchor cable 6 is clamped to the retaining plate 2 by a fixing device, and the other end of the prestressed anchor cable passes through the retaining plate 2 and extends downward at an included angle of 15 ° with a horizontal plane;

prestress anchor cable 6 includes exhaust pipe 61, mud jacking pipe 62 and the encircleing of coaxial setting exhaust pipe 61 axis is provided with steel strand wires 63, exhaust pipe 61 sets up the tension zone 7 of steel strand wires 63, mud jacking pipe 62 sets up the anchor zone 8 of steel strand wires 63, the one end of exhaust pipe 61 is installed and is used for the centre gripping the ground tackle 64 of steel strand wires 63, ground tackle 64 orientation the one side of retaining plate 2 with still be provided with steel backing plate 65 between the retaining plate 2, exhaust pipe 61 sets up in anchor rope outer tube 66, steel strand wires 63 set up exhaust pipe 61 with between the anchor rope outer tube 66.

In the in-process of in-service use, the utility model discloses can be from last to the installation stable in the loose soil layer of middle level stereoplasm for fill out soil, gravel and cobble extremely down in proper order to utilize prestressed anchorage cable 6's setting to improve the cohesion between fender board 2 and the slight slope with the slight slope. Therefore, the soil retaining wall has the characteristic of high strength in a specific soil layer and has the characteristic of stable soil retaining effect in the using process.

Further, a retaining cover 9 is installed on the retaining plate 2, and the anchorage device 64 is arranged in the retaining cover 9.

In addition, the steel strand 63 in the anchoring area 8 is provided with lead wires 10 and centering isolation frames 11 at intervals, and the steel strand 63 at the micro end of the grouting pipe 62 is provided with a steel plate as a guider for drawing the steel strand 63.

Furthermore, the soil guard plate 2 is distributed with drain holes 12, one end of the drain hole 12 on the soil layer is covered with a coarse aggregate reverse filter bag 13, and the net of the guard plate rib 3 is provided with a reinforcing rib surrounding the drain hole 12.

Further, the insertion foundation pile 1 and the crown beam 5 share the foundation pile reinforcement 4.

Furthermore, a connection plate 14 extending toward the ground is installed at the top end of the retaining wall, and a drainage ditch 15 extending along the length direction of the retaining wall is provided on the connection plate 14.

In addition, a fence 16 is installed on the top surface of the soil guard plate 2.

In particular, the retaining wall of the utility model is best suitable for the stratum with the layers of miscellaneous fill, gravel and pebble from top to bottom in sequence.

When the retaining wall of the utility model is constructed, for the inserted foundation pile 1, the hole forming of the inserted foundation pile 1 adopts a manual hole forming mode, the hole forming adopts a necessary supporting mode to prevent hole collapse, and the diameter of the hole forming is 800mm; and insertion of foundation pile 1 into undisturbed soil requires more than 2.5m.

For the retaining plate 2, the concrete strength of the casting body is C15 with the thickness of 100mm, the strength grade of the concrete of the beam, the column and the wall is C30, the thickness of the concrete protective layer inserted into the foundation pile 1 is 50mm, the thickness of the protective layer of the crown beam 5 is 40mm, and the thickness of the concrete protective layer on one side of the wall side slope is not less than 50mm; meanwhile, the backfill soil of the foundation part of the retaining plate 2 is tamped by adopting gravel soil in layers, and the compaction coefficient is not less than 0.94; the width of a deformation joint of the retaining plate 2 is 20 to 30mm, asphalt reinforcement or asphalt-coated wood boards are filled in the joint along the inner edge, the outer edge and the top edge of the wall, and the filling depth is larger than 200mm. And the anchoring length of the main reinforcing steel bars of the reinforcing bar net anchored in the foundation pile 1 and the pile cap is not less than 40d.

For the prestressed anchor cable 6, the anchor cable has a drilling diameter of 130mm, 3 bundles of S15.2 steel stranded wires 63 are drilled in a pipe-following manner, and the inclination angle of the anchor cable is 15 degrees; adopting secondary grouting, wherein the grouting adopts cement paste, and the water cement ratio is 0.5 to 0.55; the first grouting pressure is 0.4-0.6 Mpa, the grouting can be stopped after the grout overflows from the orifice, and the secondary grouting is carried out after the initial setting of the grouting body and before the final setting, wherein the secondary grouting pressure is not less than 1.5Mpa; for the grouting pipe, grouting holes are arranged in the range of La/4 to La/3 of the tail end of the anchor rod, the hole spacing is 500 to 800mm, and 2 holes are arranged in each grouting section.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a high strength retaining wall which characterized in that: the cast body comprises a vertical inserted foundation pile (1) and a retaining plate (2) arranged at the top end of the inserted foundation pile (1), the reinforcing rib net comprises a baffle rib (3) embedded in the retaining plate (2) and a foundation pile rib (4) embedded in the inserted foundation pile (1), the inserted foundation pile (1) is connected with the retaining plate (2) through a crown beam (5), one end of the prestressed anchor cable (6) is clamped with the retaining plate (2) through a fixing device, and the other end of the prestressed anchor cable penetrates through the retaining plate (2) and extends downwards with a 15-degree included angle with the horizontal plane;

the prestressed anchor cable (6) comprises an exhaust pipe (61), a grouting pipe (62) and a surrounding pipe, wherein the exhaust pipe (61) is coaxially arranged, the axis of the exhaust pipe (61) is provided with a steel strand (63), the exhaust pipe (61) is arranged in a tension area (7) of the steel strand (63), the grouting pipe (62) is arranged in an anchoring area (8) of the steel strand (63), one end of the exhaust pipe (61) is provided with an anchorage device (64) used for clamping the steel strand (63), the anchorage device (64) faces to one surface of the soil retaining plate (2) and a steel base plate (65) is further arranged between the soil retaining plates (2), the exhaust pipe (61) is arranged in an anchor cable outer sleeve (66), and the steel strand (63) is arranged between the exhaust pipe (61) and the anchor cable outer sleeve (66).

2. A high-strength retaining wall according to claim 1, wherein: the retaining plate (2) is provided with a retaining cover (9), and the anchorage device (64) is arranged in the retaining cover (9).

3. A high-strength retaining wall according to claim 1, wherein: the steel strand wires (63) positioned in the anchoring area (8) are provided with lead wires (10) and centering isolation frames (11) at intervals, and the steel strand wires (63) positioned at the micro end of the grouting pipe (62) are provided with steel plates used for drawing the steel strand wires (63) as guides.

4. A high strength retaining wall as claimed in claim 1, wherein: the soil blocking plate (2) is provided with drain holes (12) in a distributed mode, one end, located on the soil layer, of each drain hole (12) is covered with a coarse aggregate reverse filtering bag (13), and reinforcing ribs surrounding the drain holes (12) are arranged on the barrier ribs (3) in a net mode.

5. A high-strength retaining wall according to claim 1, wherein: the inserted foundation pile (1) and the crown beam (5) share the foundation pile reinforcement (4).

6. A high strength retaining wall as claimed in claim 1, wherein: the top of retaining wall board (2) is installed and is gone up the connection plate (14) that extend towards the soil surface, be provided with on connection plate (14) along the escape canal (15) that the length direction of retaining wall board (2) extends.

7. A high-strength retaining wall according to claim 1, wherein: and a fence (16) is arranged on the top surface of the soil retaining plate (2).