CN217679209U

CN217679209U - Impervious wall structure of dry dock foundation pit

Info

Publication number: CN217679209U
Application number: CN202220572958.8U
Authority: CN
Inventors: 赵安; 刘耀顺; 徐咏春; 曹健惠; 戴凤波; 沈金华; 陈献军; 杨立志; 王帅; 谈宝林
Original assignee: China Shipbuilding NDRI Engineering Co Ltd
Current assignee: China Shipbuilding NDRI Engineering Co Ltd
Priority date: 2022-03-16
Filing date: 2022-03-16
Publication date: 2022-10-28
Anticipated expiration: 2032-03-16

Abstract

The utility model belongs to dry dock foundation pit construction field specifically discloses a cut-off wall structure of dry dock foundation pit, including the cut-off wall subassembly of locating foundation pit body department bottom side, the cut-off wall subassembly includes barrier layer, bed course A, bed course B and protective layer, and wherein the protective layer is filled in the foundation pit body bottom side, and the protective layer includes cement framework, support gusset and support protection architecture, and wherein the cement framework bottom side is filled in the foundation pit body bottom side through bed course A, and the interval is equipped with a plurality of support gusset in the cement framework; the support rib plates are V-shaped, a support protection structure is arranged between every two adjacent support rib plates and comprises support legs, connectors, connecting screw rods and sleeves, wherein the support legs are U-shaped and can be fixed to the top of the inner side of the cement frame body through bolts. The utility model discloses a prevention of seepage system that formation such as anti-filter bed layer of prevention of seepage, compound geomembrane structure can prevent rainwater, groundwater, surface water etc. from getting into the foundation ditch and producing ponding.

Description

Impervious wall structure of dry dock foundation pit

Technical Field

The utility model relates to a dry dock foundation ditch construction field specifically is a cut-off wall structure of dry dock foundation ditch.

Background

Three sides of the dry dock are connected with Liu Yimian near water, and the dry dock comprises a dock entrance, a dock chamber and a dock head. The dock entrance is used for entering and exiting the ship and is provided with a water-retaining dock gate, and drainage and irrigation water equipment of the dock is usually built in the dock blocks on two sides of the dock entrance; the dock chamber is used for placing a ship, and a bottom plate of the dock chamber is provided with keel blocks and side blocks for supporting the ship; the dock head is the end opposite to the dock entrance, the plane shape of the dock head can be rectangular, semicircular and rhombic, and the space of the dock head is a part of the dock chamber, wherein a propeller and a tail shaft are disassembled and assembled. The dry dock is suitable for a closed ship pool for ship water outlet inspection and repair.

Because the dry dock is generally established at the seaside, underground water and rainwater are abundant, when the dry dock is used for constructing a foundation pit, the condition that the foundation pit is watered and accumulated water is generated frequently occurs, the accumulated water soaking can cause adverse effects on the foundation pit, and the construction quality of the foundation pit is reduced, so that the diaphragm wall structure of the foundation pit of the dry dock is needed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a cut-off wall structure of dry dock foundation ditch to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the impervious wall structure of the dry dock foundation pit comprises an impervious wall assembly arranged on the bottom side of a foundation pit body, wherein the impervious wall assembly comprises an impervious layer, a cushion layer A, a cushion layer B and a protective layer, the protective layer is filled on the bottom side of the foundation pit body, the protective layer comprises a cement frame body, supporting rib plates and a supporting protective structure, the bottom side of the foundation pit body is filled on the bottom side of the cement frame body through the cushion layer A, and a plurality of supporting rib plates are arranged in the cement frame body at intervals; the supporting rib plates are V-shaped, a supporting protection structure is arranged between two adjacent supporting rib plates and comprises supporting legs, a connector, a connecting screw and a sleeve, the supporting legs are U-shaped and can be fixed to the top of the inner side of the cement frame body through bolts, the middle of the bottom ends of the supporting legs are provided with connectors, and the end portions of the connectors are fixedly connected with the sleeves.

Preferably, the sleeve is vertically arranged, an opening is formed in the bottom end of the sleeve, the bottom end of the connecting screw rod is fixed to the outer side of the cement frame body through a nut, and the top end of the connecting screw rod extends into the sleeve through the opening and is connected with the sleeve.

Preferably, the cushion layer B is arranged on the protective layer, and an impermeable layer is paved on the cushion layer B.

Preferably, the cushion layer B is provided with anchoring points, the impermeable layer is paved and attached to the outer side of the cushion layer B, and anchoring nails corresponding to the anchoring points are arranged on the impermeable layer.

Preferably, the impermeable layer is a composite geomembrane structure, and the composite geomembrane structure is one of two cloth and one film or three cloth and two films.

Preferably, the cushion layer A is a cast-in-place concrete slab layer, and the cushion layer B is an anti-seepage reverse filter cushion layer.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a cut-off wall subassembly adopts the cooperation of barrier layer, bed course A, bed course B and protective layer, and the protective layer provides the support protection, avoids the foundation ditch receiving under the strong pressure condition, makes the seepage prevention structure in it take place to warp, and the protective layer adopts a plurality of bearing structure to support the protection, can further keep the stability of barrier layer.

2. The utility model discloses an anti-seepage subassembly still adopts the anti-seepage system that forms such as anti-filtration bed course of prevention of seepage, compound geomembrane structure, and it can prevent rainwater, groundwater, surface water from getting into the foundation ditch and producing ponding, makes the construction go on normally in succession, is favorable to improving the efficiency of construction, guarantees construction quality.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is an enlarged schematic structural diagram of a in fig. 1 according to the present invention.

In the figure: 1. an impermeable layer; 2. a cushion layer A; 3. a cushion layer B; 4. a cement frame body; 5. supporting the rib plate; 6. supporting legs; 7. a connector; 8. connecting a screw rod; 9. a sleeve; 10. and (6) anchoring the bolts.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. 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 description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

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 according to specific situations by those skilled in the art.

Referring to fig. 1-2, the present invention provides a technical solution: the impervious wall structure of the foundation pit of the dry dock comprises an impervious wall assembly arranged at the bottom side of a foundation pit body, wherein the impervious wall assembly comprises an impervious layer 1, a cushion layer A2, a cushion layer B3 and a protective layer, the protective layer is filled at the bottom side of the foundation pit body, the protective layer comprises a cement frame body 4, supporting rib plates 5 and a supporting protective structure, the bottom side of the cement frame body 4 is filled at the bottom side of the foundation pit body through the cushion layer A2, and a plurality of supporting rib plates 5 are arranged in the cement frame body 4 at intervals; support rib plate 5 is the V-arrangement, has installed between two adjacent support rib plates 5 and has supported protective structure, and supports protective structure and include supporting legs 6, connector 7, connecting screw 8 and sleeve 9, and wherein supporting legs 6 are U-shaped and its accessible bolt fastening in the inboard top of

cement framework

4, and 6 bottom middle parts of supporting legs are equipped with connector 7, and connector 7 tip links firmly sleeve 9.

In this embodiment, sleeve 9 is vertical to be set up and its bottom is equipped with the opening, and 8 bottoms of connecting screw are fixed in the cement framework 4 outside through the nut, and 8 tops of connecting screw stretch into sleeve 9 by the opening and are connected with sleeve 9 in.

In this embodiment, the cushion layer B3 is disposed on the protective layer, and the impermeable layer 1 is disposed on the cushion layer B3.

In this embodiment, the cushion layer B3 is provided with anchoring points, the impermeable layer 1 is laid on the outer side of the cushion layer B3, and the impermeable layer 1 is provided with anchoring nails 10 corresponding to the anchoring points.

In this embodiment, the impermeable layer 1 is a composite geomembrane structure, and the composite geomembrane structure is either two cloth one film or three cloth two films.

In this embodiment, the cushion layer A2 is a cast-in-place concrete slab layer, and the cushion layer B3 is an impermeable reverse filter cushion layer.

In the embodiment, the impermeable layer 1, the cushion layer A2, the cushion layer B3 and the protective layer are matched with each other, the protective layer provides support protection to prevent the impermeable structure in the foundation pit from deforming under strong pressure, and the protective layer adopts a plurality of support structures for support protection to further maintain the stability of the impermeable layer; and the seepage-proofing component also adopts an seepage-proofing system formed by an seepage-proofing reverse filter bed layer, a composite geomembrane structure and the like, and can prevent rainwater, underground water, surface water and the like from entering a foundation pit and generating accumulated water, so that the construction is continuously and normally carried out, the construction efficiency is favorably improved, and the construction quality is ensured.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The impervious wall structure of the dry dock foundation pit is characterized by comprising an impervious wall assembly arranged on the bottom side of a foundation pit body, wherein the impervious wall assembly comprises an impervious layer (1), a cushion layer A (2), a cushion layer B (3) and a protective layer, the protective layer is filled on the bottom side of the foundation pit body, the protective layer comprises a cement frame body (4), supporting rib plates (5) and a supporting protective structure, the bottom side of the foundation pit body is filled on the bottom side of the cement frame body (4) through the cushion layer A (2), and a plurality of supporting rib plates (5) are arranged in the cement frame body (4) at intervals; support rib plate (5) are the V shape, have installed support protection architecture between two adjacent support rib plate (5), and support protection architecture and include supporting legs (6), connector (7), connecting screw (8) and sleeve (9), wherein supporting legs (6) are U shape and its accessible bolt fastening in cement frame body (4) inboard top, and supporting legs (6) bottom middle part is equipped with connector (7), and connector (7) tip links firmly sleeve (9).

2. The cutoff wall structure of the foundation pit of the dry dock according to claim 1, wherein: the vertical setting of sleeve (9) and its bottom are equipped with the opening, and connecting screw (8) bottom is fixed in the cement framework (4) outside through the nut, and connecting screw (8) top is stretched into in sleeve (9) and is connected with sleeve (9) by the opening.

3. The cutoff wall structure of the foundation pit of the dry dock according to claim 1, wherein: the cushion layer B (3) is arranged on the protective layer, and the impermeable layer (1) is paved on the cushion layer B (3).

4. A diaphragm wall structure of a foundation pit of a dry dock according to claim 3, wherein: and the cushion layer B (3) is provided with anchoring points, the impermeable layer (1) is paved and attached on the outer side of the cushion layer B (3), and the impermeable layer (1) is provided with anchors (10) corresponding to the anchoring points.

5. An impervious wall structure of a foundation pit of a dry dock according to claim 4, wherein: the impermeable layer (1) is of a composite geomembrane structure, and the composite geomembrane structure is one of two cloth films or three cloth films.

6. The cutoff wall structure of the foundation pit of the dry dock according to claim 1, wherein: the cushion layer A (2) is a cast-in-place concrete slab layer, and the cushion layer B (3) is an anti-seepage reverse filter cushion layer.