CN220394397U - Retaining wall for soft soil layer at water edge - Google Patents

Abstract

The utility model discloses a retaining wall for a soft soil layer at a water edge, which comprises a pile foundation part, an enlarged foundation part, a wall body and a pressing top, wherein the pile foundation part is positioned at the bottom, the wall body is positioned at the top, the enlarged foundation part is positioned between the pile foundation part and the wall body, and the pressing top is positioned at the top of the wall body; the expansion foundation part is provided with a sinking section and a flat supporting section, the end face of the sinking section connected with the pile foundation part is lower than the end face of the flat supporting section connected with the pile foundation part in height, the sinking section is arranged on one side of the expansion foundation part close to water, and the gravity center of the expansion foundation part is positioned on one side close to water; the gravity center of the wall body is positioned at one side far away from water. Through setting up the portion of sinking at the expansion foundation portion, make the overall structure focus that expands the foundation portion be located one side that is close to water, and the focus of wall is located one side that is away from water, when expanding the foundation portion as bearing support, can carry out from steady, the balance through gravity with the wall, realize that whole retaining wall is from steady, be applicable to the soft soil layer structure of water limit.

Description

Retaining wall for soft soil layer at water edge

Technical Field

The utility model relates to the technical field of civil engineering, in particular to a retaining wall for a soft soil layer at a water side.

Background

In the current civil engineering, a retaining engineering is usually required to be implemented, for example, retaining walls are adopted to support embankments and road mats, so that stability is improved. The types of retaining walls commonly used at present are gravity type, wall-supporting type, pile plate type and the like. Gravity type barricade mainly relies on self gravity to keep overall structure's stability, adopts the serous piece stone more, and wide application is kept off in embankment, cutting, and the wall height should not exceed 12 meters, and its section size is great, and the wall body is heavier, and is higher to the requirement of foundation bearing capacity.

For river sides close to water, a retaining wall needs to be built, and the river sides belong to soft soil layers, so that the existing gravity retaining wall is not suitable for the river sides.

In view of this, the present patent application is presented.

Disclosure of Invention

The utility model aims to provide a retaining wall for a soft soil layer on a water edge, which is characterized in that a sinking part is arranged on an enlarged foundation part, so that the gravity center of the whole structure of the enlarged foundation part is positioned on one side close to water, and the gravity center of a wall body is positioned on one side far away from water, thereby realizing self-stabilization and balance of the whole retaining wall and being suitable for the soft soil layer structure on the water edge.

The utility model is realized by the following technical scheme:

the utility model aims to provide a retaining wall for a soft soil layer at a water edge, which comprises a pile foundation part, an enlarged foundation part, a wall body and a pressing top, wherein the pile foundation part is positioned at the bottom, the wall body is positioned at the top, the enlarged foundation part is positioned between the pile foundation part and the wall body, and the pressing top is positioned at the top of the wall body;

the enlarged foundation part is provided with a sinking section and a flat supporting section, the end surface of the sinking section connected with the pile foundation part is lower than the end surface of the flat supporting section connected with the pile foundation part in height, the sinking section is arranged on one side of the enlarged base part close to water, and the gravity center of the enlarged base part is positioned on one side close to water;

the gravity center of the wall body is positioned at one side far away from water.

In an alternative embodiment, the pile foundation part comprises a plurality of precast piles, the enlarged foundation part comprises precast pile fixing layers and supporting layers, the precast pile fixing layers are positioned at the tops of the precast piles, the tops of the precast piles are inserted into the precast pile fixing layers, the supporting layers are positioned at the upper parts of the precast pile fixing layers, and the wall body is fixed at the upper parts of the supporting layers;

the precast pile fixing layer is provided with a downward inclined section on one side close to water, and the supporting layer is provided with a downward inclined section on one side close to water so as to form a sinking section of the enlarged foundation part.

In an alternative embodiment, the sinking height of the precast pile on the water side is greater than the height of the precast pile on the water side to cooperate with the downwardly inclined section of the precast pile fixing layer.

In an alternative embodiment, both ends of the precast pile fixing layer extend to the outside of both ends of the supporting layer.

In an alternative embodiment, the plurality of precast piles are arranged in a quincuncial shape.

In an alternative embodiment, the wall body includes an upper wall body and a lower wall body, the lower wall body is fixed on the supporting layer, one sides of the upper wall body and the lower wall body, which are close to water, incline towards water, the width of the upper wall body is smaller than that of the lower wall body, the height of the upper wall body is larger than that of the lower wall body, and the gravity center of the wall body is close to one side, which is far away from water.

In an alternative embodiment, the tip end of each precast pile is provided with a screw steel, and two ends of the screw steel are respectively positioned at the inner and outer parts of each precast pile.

In an alternative embodiment, two sides of the expanded foundation layer are provided with pond dreg tamping filling layers, the side parts of the wall body and the pressing roof, which are far away from water, are provided with pond dreg tamping filling layers and filling layers, the pond dreg tamping filling layers at the side parts of the wall body are integrated with the pond dreg tamping filling layers of the expanded foundation portion, the filling layers are positioned above the pond dreg tamping filling layers, and a filtering system is arranged between the pond dreg tamping filling layers and the filling layers.

In an alternative embodiment, the filtering system comprises a clay layer, a graded crushed stone layer and a drain pipe, wherein the clay layer is close to the filler layer, the graded crushed stone layer is close to the pond residue rammed filler layer, one end of the drain pipe is positioned on the graded crushed stone layer, the other end of the drain pipe is inserted into the wall body, a plurality of drain holes are formed in the drain pipe, and nonwoven geotechnical cloth is adhered in the drain holes.

In an optional embodiment, the upper wall body is provided with an inlaid layer on the water side, the precast pile is a reinforced concrete precast pile, the precast pile fixing layer and the wall body are made of grouted block stones, the supporting layer and the pressing top are made of concrete, and the retaining wall is also provided with sedimentation gaps at equal intervals.

Compared with the prior art, the utility model has the advantages that:

according to the retaining wall for the soft soil layer at the water edge, provided by the embodiment of the utility model, the sinking part is arranged on the enlarged foundation part, so that the gravity center of the whole structure of the enlarged foundation part is positioned at one side close to water, the gravity center of the wall body is positioned at one side far away from water, and the enlarged foundation part is used as a bearing support and can be self-stabilized with the wall body through gravity, so that the self-stabilization and balance of the whole retaining wall are realized, and the retaining wall is suitable for the soft soil layer structure at the water edge.

Drawings

In order to more clearly illustrate the technical solutions of the exemplary embodiments of the present utility model, the drawings that are needed in the examples will be briefly described below, it being understood that the following drawings only illustrate some examples of the present utility model and therefore should not be considered as limiting the scope, and that other related drawings may be obtained from these drawings without inventive effort for a person skilled in the art. In the drawings:

FIG. 1 is a schematic view of a retaining wall structure for a soft soil layer of a water side according to an embodiment of the present utility model;

FIG. 2 is an enlarged view of a partial structure at A in FIG. 1;

FIG. 3 is a diagram showing distribution of precast piles arranged in a quincuncial shape according to an embodiment of the present utility model;

FIG. 4 is a schematic diagram of a precast pile according to an embodiment of the present utility model;

fig. 5 is a schematic structural diagram of a drain pipe according to an embodiment of the utility model.

In the drawings, the reference numerals and corresponding part names:

1-pile foundation part, 101-precast pile, 102-screw steel, 2-enlarged foundation part, 201-precast pile fixing layer, 202-supporting layer, 203-inclined section, 3-wall body, 301-upper wall body, 302-lower wall body, 4-coping, 5-pond residue ramming soil layer, 6-filling layer, 7-filtering system, 701-clay layer, 702-graded crushed stone layer, 703-drain pipe, 704-drain hole, 705-non-woven geotechnical cloth and 8-inlay layer.

Detailed Description

For the purpose of making apparent the objects, technical solutions and advantages of the present utility model, the present utility model will be further described in detail with reference to the following examples and the accompanying drawings, wherein the exemplary embodiments of the present utility model and the descriptions thereof are for illustrating the present utility model only and are not to be construed as limiting the present utility model.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. However, it will be apparent to one of ordinary skill in the art that: no such specific details are necessary to practice the utility model. In other instances, well-known structures, circuits, materials, or methods have not been described in detail in order not to obscure the utility model.

Throughout the specification, references to "one embodiment," "an embodiment," "one example," or "an example" mean: a particular feature, structure, or characteristic described in connection with the embodiment or example is included within at least one embodiment of the utility model. Thus, the appearances of the phrases "in one embodiment," "in an example," or "in an example" in various places throughout this specification are not necessarily all referring to the same embodiment or example. Furthermore, the particular features, structures, or characteristics may be combined in any suitable combination and/or sub-combination in one or more embodiments or examples. Moreover, those of ordinary skill in the art will appreciate that the illustrations provided herein are for illustrative purposes and that the illustrations are not necessarily drawn to scale. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

In the description of the present utility model, the terms "front", "rear", "left", "right", "upper", "lower", "vertical", "horizontal", "high", "low", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify 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 therefore should not be construed as limiting the scope of the present utility model.

As shown in fig. 1 to 5, a retaining wall for a soft soil layer at a waterside, comprising: pile foundation part 1, enlarged foundation part 2, wall body 3, and press top 4, wherein pile foundation part 1 is positioned at the bottom, and can provide bearing capacity in soft soil layer; the wall body 3 is located at the top, the enlarged foundation part 2 is located between the pile foundation part 1 and the wall body 3, the enlarged foundation layer is used as the connection between the pile foundation part 1 and the wall body 3, the bearing capacity is further provided for the wall body 3, and the pressing top 4 is located at the top of the wall body 3.

The enlarged foundation part 2 is provided with a sinking section and a flat supporting section, the end face of the sinking section connected with the pile foundation part 1 is lower than the end face of the flat supporting section connected with the pile foundation part 1 in height, the sinking section is arranged on one side of the enlarged foundation part 2 close to water, the gravity center of the whole structure of the enlarged foundation part 2 can be positioned on one side close to water by the arrangement, the gravity center of the enlarged foundation part 2 is positioned on the right side, the gravity center of the wall body 3 is positioned on one side far away from water, and the gravity center is far left side, so that the enlarged foundation part 2 can be self-stabilized with the wall body 3 through gravity while being used as bearing support, self-stabilization and balance of the whole retaining wall are realized, and the method is applicable to a soft soil layer structure on the water side.

In some embodiments, the pile foundation portion 1 comprises a plurality of precast piles 101, as shown in fig. 2, the plurality of precast piles 101 are C30 reinforced concrete precast piles 101 arranged in quincuncial piles, and a single pile is a square pile. Precast pile 101 is moved into and out of the earth to provide load bearing capacity in soft soil layers.

The enlarged foundation portion 2 includes a precast pile fixing layer 201 and a supporting layer 202, the precast pile fixing layer 201 is located at the top of the precast pile 101, the top of each precast pile 101 is inserted into the precast pile fixing layer 201, and the precast pile fixing layer 201 may use M5 masonry, which includes a portion of the upper portion of the precast pile 101. In this way, the precast pile 101 can be fixed into a whole by using the grouted block stones, and the aim of jointly stressing is achieved. The support layer 202 is positioned at the upper part of the precast pile fixing layer 201, and the wall body 3 is fixed at the upper part of the support layer 202; both the support layer 202 and the capping 4 may be made of a C20 plain concrete material.

The precast pile fixing layer 201 is provided with a downward inclined section 203 extending towards water on one side of the precast pile fixing layer 201, the support layer 202 is provided with a downward inclined section 203 extending towards water on one side of the precast pile fixing layer 202, the downward inclined section 203 of the precast pile fixing layer 201 and the downward inclined section 203 of the support layer 202 are equal in inclination angle and parallel to each other, the setting of the precast pile fixing layer 201 and the downward inclined section 203 of the support layer 202 forms a sinking section of the enlarged foundation part 2, and the precast pile fixing layer 201 and the support layer 202 form a flat support section of the enlarged foundation part 2 along the horizontal direction. The gravity center position of the enlarged foundation part 2 is deviated to the right by arranging the sinking section, and the enlarged foundation part 2 is downwards due to thicker soft soil layer close to the river, so that enough foundation bearing capacity is obtained.

In order to be matched with the downward inclined section 203 of the precast pile fixing layer 201, the sinking height of the precast pile 101 on the water side is set to be greater than the height of the precast pile 101 on the water side, and the precast pile 101 on the water side is inserted deeper into the soil, thereby providing a sinking space for the sinking section.

The two ends of the precast pile fixing layer 201 formed by the grouted block stone are extended to the outside of the two ends of the supporting layer 202, so that the width of the grouted block stone foundation layer (i.e. the precast pile fixing layer 201) is wider than the width of the concrete foundation layer (i.e. the supporting layer 202) by a part of each of two sides, and a stable support is formed for the concrete foundation layer.

In some embodiments, the wall body 3 includes an upper wall 301 and a lower wall 302, where the upper wall 301 and the lower wall 302 are made of M10 mortar rubble, the lower wall 302 is fixed on the supporting layer 202, and sides of the upper wall 301 and the lower wall 302, which are close to water, are inclined towards water to form an outer slope, and the gradient of the outer slope is 1:0.6; the width of the upper wall 301 is smaller than that of the lower wall 302, a structure with a narrow upper part and a wide lower part is formed, and the height of the upper wall 301 is larger than that of the lower wall 302, so that the gravity center of the wall 3 is close to one side far away from water, and the gravity center of the wall 3 is deviated to the left. Thus, the gravity center of the foundation part 2 is enlarged to the right, the gravity center of the wall body 3 is left, the self-stabilization and balance of the whole retaining wall can be realized, and the soil-retaining wall is more suitable for soft soil layers. The material Dan Ganqi can be used for veneering on the outer vertical surface of the upper wall 301, and the M10 masonry mortar is used for hooking the convex seam, so that the convex seam can be utilized for modeling, and the attractive effect is achieved.

In some embodiments, the tip end of each precast pile 101 is provided with a screw steel 102, and two ends of the screw steel 102 are respectively located at the inner and outer parts of each precast pile 101, so that a part of the screw steel 102 is exposed, thereby facilitating the insertion and driving of the precast piles 101.

In some embodiments, pond residue ramming layers are arranged on two sides of the expanded foundation layer, pond residue ramming is adopted, and pond residue is rammed layer by layer, wherein the compaction degree is 90%. The wall body 3 and the coping 4 are provided with a pond slag tamping filling layer and a filling layer 6 at the left side part, the pond slag tamping filling layer at the side part of the wall body 3 and the pond slag tamping filling layer of the enlarged foundation part 2 are integrated, and the filling layer 6 is positioned above the pond slag tamping filling layer and is filled with soil. A filtering system 7 is arranged between the pond slag ramming filling layer and the filling layer 6.

The filtering system 7 specifically comprises a clay layer 701, a graded broken stone layer 702 and a drain pipe 703, wherein the clay layer 701 is arranged at the upper part and is close to the filling layer 6, the graded broken stone layer 702 is arranged at the lower part and is close to the pond residue ramming filling layer. A PVC pipe is used as the drain pipe 703, one end of the drain pipe 703 is positioned in the graded crushed stone layer 702, the other end is inserted into the wall body 3, a plurality of drain holes 704 are provided in the drain pipe 703, and a needled nonwoven geotextile 705 is stuck in the drain holes 704. The settlement joint is arranged at the position of the retaining wall at intervals, so that the settlement of the retaining wall after construction can be ensured to be controllable.

The utility model can realize the construction of the retaining wall on the river-side soft soil layer, and ensures that the sedimentation of the retaining wall after construction is controllable.

The foregoing detailed description of the utility model has been presented for purposes of illustration and description, and it should be understood that the utility model is not limited to the particular embodiments disclosed, but is intended to cover all modifications, equivalents, alternatives, and improvements within the spirit and principles of the utility model.

Claims (10)

1. The retaining wall for the soft soil layer at the water edge is characterized by comprising a pile foundation part (1), an enlarged foundation part (2), a wall body (3) and a pressing top (4), wherein the pile foundation part (1) is positioned at the bottom, the wall body (3) is positioned at the top, the enlarged foundation part (2) is positioned between the pile foundation part (1) and the wall body (3), and the pressing top (4) is positioned at the top of the wall body (3);

the expansion foundation part (2) is provided with a sinking section and a flat supporting section, the end face of the sinking section connected with the pile foundation part (1) is lower than the end face of the flat supporting section connected with the pile foundation part (1) in height, the sinking section is arranged on one side of the expansion foundation part (2) close to water, and the gravity center of the expansion foundation part (2) is positioned on one side close to water;

the gravity center of the wall body (3) is positioned at one side far away from water.

2. A retaining wall for soft soil layers at waterside according to claim 1, characterized in that said pile foundation portion (1) comprises a plurality of precast piles (101), said enlarged foundation portion (2) comprises precast pile fixing layers (201) and supporting layers (202), said precast pile fixing layers (201) are located at the tops of said precast piles (101), the tops of each of said precast piles (101) are inserted into said precast pile fixing layers (201), said supporting layers (202) are located at the upper portions of said precast pile fixing layers (201), and said wall body (3) is fixed at the upper portions of said supporting layers (202);

the precast pile fixing layer (201) is provided with a downward inclined section (203) on the side close to water, and the supporting layer (202) is provided with a downward inclined section (203) on the side close to water so as to form a sinking section of the enlarged foundation part (2).

3. A retaining wall for soft soil layers at waterside according to claim 2, characterized in that the sinking height of the precast pile (101) at the waterside is larger than the height of the precast pile (101) at the far side to cooperate with the downward inclined section (203) of the precast pile fixing layer (201).

4. A retaining wall for soft soil layers at waterside according to claim 2, characterized in that both ends of said precast pile fixing layer (201) extend to the outside of both ends of said supporting layer (202).

5. A retaining wall for soft soil layers at waterside according to claim 2, characterized in that the plurality of precast piles (101) are arranged in a quincuncial pattern.

6. The retaining wall for soft soil layer at waterside according to any one of claims 2-5, wherein the wall body (3) comprises an upper wall body (301) and a lower wall body (302), the lower wall body (302) is fixed on the supporting layer (202), one sides of the upper wall body (301) and the lower wall body (302) close to water are inclined towards water, the width of the upper wall body (301) is smaller than that of the lower wall body (302), the height of the upper wall body (301) is larger than that of the lower wall body (302), and the gravity center of the wall body (3) is close to one side far away from water.

7. A retaining wall for soft soil layers at waterside according to claim 6, wherein the tip end of each precast pile (101) is provided with a screw steel (102), and both ends of the screw steel (102) are respectively located at the inner and outer parts of each precast pile (101).

8. The retaining wall for soft soil layers on water edges according to claim 7, wherein the two sides of the enlarged foundation portion are provided with pond residue tamping filling layers, the side portions, far away from water, of the wall body (3) and the pressing top (4) are provided with pond residue tamping filling layers and filling layers (6), the pond residue tamping filling layers on the side portions of the wall body (3) are integrated with the pond residue tamping filling layers of the enlarged foundation portion (2), the filling layers (6) are located above the pond residue tamping filling layers, and a filtering system (7) is arranged between the pond residue tamping filling layers and the filling layers (6).

9. The retaining wall for soft soil layers at waterside according to claim 8, wherein the filtering system (7) comprises a clay layer (701), a graded crushed stone layer (702) and a drain pipe (703), the clay layer (701) is close to the filler layer (6), the graded crushed stone layer (702) is close to the pond residue rammed filler layer, one end of the drain pipe (703) is positioned in the graded crushed stone layer (702), the other end of the drain pipe is inserted into the wall body (3), a plurality of drain holes (704) are formed in the drain pipe (703), and a non-woven geotechnical cloth (705) is attached in the drain holes (704).

10. The retaining wall for soft soil layers on water edges according to any one of claims 7-9, wherein an inlaid layer (8) is arranged on one side of the upper wall body (301) close to water, precast piles (101) are reinforced concrete precast piles (101), precast pile fixing layers (201) and wall bodies (3) are made of grouted block stones, supporting layers (202) and pressing tops (4) are made of concrete, and settlement joints are arranged on the retaining wall at equal intervals.