CN217053421U

CN217053421U - Near reservoir stagnant water structure

Info

Publication number: CN217053421U
Application number: CN202120713232.7U
Authority: CN
Inventors: 于得安; 姜永生; 周范武; 罗毅; 吕双江; 高海涛
Original assignee: CCCC Second Harbor Engineering Co
Current assignee: CCCC Second Harbor Engineering Co
Priority date: 2021-04-08
Filing date: 2021-04-08
Publication date: 2022-07-26
Anticipated expiration: 2031-04-08

Abstract

The utility model discloses a be close reservoir stagnant water structure, including concrete barricade, steel cofferdam and bracing, steel cofferdam vertical install in the top of concrete barricade, the bracing is used for supporting the steel cofferdam, the utility model discloses a stagnant water structure substructure adopts the concrete barricade, and single wall steel cofferdam is adopted on upper portion, compares in the all-steel cofferdam, can effectual adaptation topography change, increases in good time according to the water level condition, and can effectively shorten construction cycle, reduces the construction degree of difficulty and construction cost by a wide margin, resources are saved.

Description

Near reservoir stagnant water structure

Technical Field

The utility model relates to a cofferdam stagnant water structure field. More specifically, the utility model relates to a reservoir that faces water structure with adjustable adaptable different topography and height.

Background

The super-large bridge cable tower foundation across the reservoir is usually positioned in water or adjacent to the bank side of the reservoir, the construction difficulty is high, the foundation adjacent to the bank side of the reservoir can be constructed by adopting water-stopping structures such as a steel sheet pile cofferdam, a steel pipe pile cofferdam, a double-wall steel cofferdam and the like, but the terrain, the geological and hydrological conditions of the position of the foundation on the bank side of the reservoir are complex, and the difference of the construction difficulty, the construction cost and the construction period of the water-stopping structures in different forms is large. The water level change of the reservoir at the Danjiang mouth at the middle and upper reaches of Hanjiang is large, the height difference of the water levels in the reservoir in the rich water period and the low water period is about 20m, bedrocks at the bank side part of the reservoir are exposed at the low water level, rock layers are exposed and inclined, a large foundation is constructed by adopting the steel cofferdam, the steel cofferdam needs to be constructed in place at one time, the steel cofferdam cannot be heightened in time according to the water level change condition, the steel consumption is large, the construction period is long, and the construction cost is high.

SUMMERY OF THE UTILITY MODEL

In order to realize according to the utility model discloses these purposes and other advantages provide a near reservoir stagnant water structure, including concrete retaining wall, steel cofferdam and bracing, steel cofferdam vertical install in the top of concrete retaining wall, the bracing is used for supporting the steel cofferdam.

According to the utility model discloses a preferred embodiment, near reservoir stagnant water structure in, the concrete barricade is close to the inboard one side concreting of reservoir, bracing one end is fixed in the concrete, the other end is fixed in the steel cofferdam.

According to the utility model discloses a preferred embodiment, the reservoir stagnant water structure that faces in, concrete barricade top sets up reinforced concrete circle roof beam and built-in fitting, reinforced concrete circle roof beam buries in the concrete barricade, built-in fitting one end is buried in the reinforced concrete circle roof beam, the other end is connected the steel cofferdam.

According to the utility model discloses a preferred embodiment, the reservoir stagnant water structure just in among, the built-in fitting includes at least one L type connecting piece, its one end connect in the steel cofferdam, its kink bury in advance in the reinforced concrete ring roof beam.

According to the utility model discloses a preferred embodiment, near reservoir stagnant water structure in, the cross sectional shape of reinforced concrete ring beam with the cross sectional shape looks adaptation of concrete retaining wall.

According to the utility model discloses a preferred embodiment, the reservoir that faces in the stagnant water structure, the built-in fitting is the steel sheet built-in fitting, the steel cofferdam weld in on the built-in fitting.

According to the utility model discloses a preferred embodiment, the reservoir stagnant water structure of nearing in, the embedding of steel cofferdam bottom meets water inflation waterstop.

According to the utility model discloses a preferred embodiment, near the reservoir stagnant water structure in, the vertical setting in steel cofferdam.

According to the utility model discloses a preferred embodiment, near reservoir stagnant water structure in, along keeping away from gradually the concrete barricade is close to the inboard direction of reservoir, the thickness of concrete diminishes gradually.

The utility model discloses at least, include following beneficial effect: the utility model discloses a stagnant water structure substructure adopts the concrete barricade, and single wall steel cofferdam is adopted on upper portion, compares in the all-steel cofferdam, can effectually adapt to the change of topography, increases in good time according to the water level condition, and can effectively shorten construction cycle, reduces the construction degree of difficulty and construction cost, resources are saved by a wide margin.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.

Drawings

Fig. 1 is a schematic structural diagram of a waterstop structure of a near reservoir in a preferred embodiment of the present invention.

Fig. 2 is a schematic view of the connection between the steel cofferdam and the concrete retaining wall according to a preferred embodiment of the present invention.

Detailed Description

The present invention is further described in detail below with reference to the drawings so that those skilled in the art can implement the invention with reference to the description.

The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments described below are by way of example only, and other obvious variations will occur to those skilled in the art. The underlying principles of the invention, as defined in the following description, may be applied to other embodiments, variations, modifications, equivalents, and other technical solutions without departing from the spirit and scope of the invention.

It will be understood by those skilled in the art that in the present disclosure, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in a generic and descriptive sense only and not for purposes of limitation, as the terms are used in the description to indicate that the referenced device or element must have the specified orientation, be constructed and operated in the specified orientation, and not for the purposes of limitation.

It is understood that the terms "a" and "an" should be interpreted as meaning that a number of one element or element is one in one embodiment, while a number of other elements is one in another embodiment, and the terms "a" and "an" should not be interpreted as limiting the number.

As shown in fig. 1, the utility model discloses a near reservoir stagnant water structure, including concrete retaining wall 1, steel cofferdam 2 and

bracing

3, 2 vertical installations in of steel cofferdam in concrete retaining wall 1's top, bracing 3 is used for supporting steel cofferdam 2.

The reservoir is faced all to the tradition and the installation steel cofferdam is realized stagnant water manger plate function, but during actual construction, construction area is all great, the length that need enclose the fender is great, need consume a large amount of steel, high cost, and the steel cofferdam of being under construction in aqueous also has certain degree of difficulty, the unstable condition of installation often can appear, in order to reduce construction cost, stagnant water structure substructure in this embodiment adopts the concrete barricade, the steel cofferdam is adopted on upper portion, compare in traditional all-steel cofferdam, the combination stagnant water structure of this application, and can effectively shorten construction cycle, reduce the construction degree of difficulty and construction cost by a wide margin, and resources are saved. And compare in all-steel cofferdam, the combined stagnant water structure of this application can the change of effectual adaptation topography, but also can increase in good time according to the water level condition.

Because concrete retaining wall 1 lower part all buries in water, in order to increase whole concrete retaining wall 1's stability concrete 4 is pour to the one side that concrete retaining wall 1 is close to the reservoir inboard. If the construction space is enough, the concrete retaining wall 1 adopts a balance weight retaining wall, and the position with smaller construction space adopts an anti-slide pile vertical retaining wall.

In order to improve the stability of the steel cofferdam 2, the inclined strut 3 is further provided to support the steel cofferdam 2, specifically, one end of the inclined strut 3 may be fixed to the concrete, and the other end thereof may be fixed to the steel cofferdam.

The steel cofferdam 2 is a single-wall steel cofferdam, the steel panel of the steel cofferdam faces towards the inner water body, and the upright posts and the cross beams face towards the outer side.

During actual construction, generally pour the below earlier concrete retaining wall 1, install again in its top steel cofferdam 2, but owing to be concrete retaining wall 1 solidification, the installation steel cofferdam 2 is comparatively inconvenient, for the convenience of improvement installation concrete retaining wall top sets up reinforced concrete girt 6, reinforced concrete girt 6 buries in the concrete retaining wall 1, the connection is buried to built-in fitting 5 one end in the reinforced concrete girt 6, the other end is connected steel cofferdam 2.

The structure of the embedded part is not limited specifically, in another preferred embodiment, a specific structure of the embedded part is provided, such as a rectangular steel plate welding anchor bar, and the embedded part 5 may also include at least one L-shaped connecting member, one end of which is connected to the steel cofferdam 2, and a bent part of which is pre-embedded in the reinforced concrete ring beam 6.

According to the utility model discloses a preferred embodiment, near reservoir stagnant water structure in, the cross sectional shape of reinforced concrete collar tie 6 with the cross sectional shape looks adaptation of concrete barricade 1.

According to the utility model discloses a preferred embodiment, near reservoir stagnant water structure in, built-in fitting 5 is the steel sheet built-in fitting, steel cofferdam 2 weld in on the built-in fitting 5, it is more convenient to weld, connects moreover firmly, still seals effectually.

According to the utility model discloses a preferred embodiment, the reservoir stagnant water structure near in, 1 bottom embedding of steel cofferdam meets water inflation waterstop 7, and it meets water inflation further improves the stagnant water performance of whole stagnant water structure, avoids water to follow steel cofferdam 1 with permeate between the concrete retaining wall 1.

In another preferred embodiment, in the water stop structure of the near-water reservoir, the steel cofferdam 2 is vertically arranged and is more stable.

In another preferred embodiment, in the waterstop structure for the near reservoir, the thickness of the concrete 4 gradually decreases along the direction away from the concrete retaining wall 1 gradually and close to the inner side of the reservoir, so that the stability of the concrete retaining wall 1 is ensured, the consumption of the concrete is reduced, and the cost is reduced.

While the embodiments of the invention have been described above, it is not intended to be limited to the details shown, particular embodiments, but rather to those skilled in the art, having the benefit of the teachings of the present invention, which is capable of numerous modifications and alternative forms, and will be readily apparent to those skilled in the art, and it is not intended to limit the invention to the details shown and described without departing from the general concepts defined by the appended claims and their equivalents.

Claims

1. The waterstop structure for the near reservoir is characterized by comprising a concrete retaining wall, a steel cofferdam and an inclined strut, wherein the steel cofferdam is vertically arranged above the concrete retaining wall, and the inclined strut is used for supporting the steel cofferdam;

concrete is poured to the concrete barricade one side that is close to the reservoir inboard, bracing one end is fixed in the concrete, the other end is fixed in the steel cofferdam.

2. The watershed water-stop structure of claim 1, wherein a reinforced concrete ring beam and an embedded part are arranged at the top of the concrete retaining wall, the reinforced concrete ring beam is embedded in the concrete retaining wall, one end of the embedded part is embedded in the reinforced concrete ring beam, and the other end of the embedded part is connected with the steel cofferdam.

3. The waterstop structure of claim 2, wherein the embedded part comprises at least one L-shaped connecting member, one end of the L-shaped connecting member is connected to the steel cofferdam, and the bent part of the L-shaped connecting member is pre-embedded in the reinforced concrete ring beam.

4. The water stop structure for the adjacent reservoir according to claim 2, wherein the cross-sectional shape of the reinforced concrete ring beam is adapted to the cross-sectional shape of the concrete retaining wall.

5. The watershed water-stop structure of claim 2, wherein the embedded parts are steel plate embedded parts, and the steel cofferdam is welded on the embedded parts.

6. The waterstop structure for the temporary reservoir of claim 1, wherein a water swelling waterstop is embedded at the bottom end of the steel cofferdam.

7. The water-stop structure for the near water reservoir of claim 1, wherein the steel cofferdam is vertically arranged.

8. The waterstop structure of claim 2, wherein the thickness of the concrete gradually decreases along the direction gradually away from the concrete retaining wall and close to the inner side of the reservoir.