CN212052821U

CN212052821U - A two-layer equation cofferdam for hydraulic engineering construction

Info

Publication number: CN212052821U
Application number: CN202020249366.3U
Authority: CN
Inventors: 仇勇; 付美红
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-03-04
Filing date: 2020-03-04
Publication date: 2020-12-01
Anticipated expiration: 2030-03-04

Abstract

The utility model discloses a double-deck formula cofferdam for hydraulic engineering construction, include: the inner cofferdam is arranged in the outer cofferdam, a connecting bin is formed between the inner cofferdam and the outer cofferdam, a supporting piece is arranged in the connecting bin, and the supporting piece comprises a first supporting plate, a second supporting plate and a connecting piece; the inner cofferdam and the outer cofferdam are both in square structures; the inner corner of outer cofferdam and the outer corner of inner cofferdam have all been seted up and have been inlayed the groove, and it is the T font structure to inlay the groove. The utility model has the advantages that the whole structure is square, the cofferdam with a circular structure is convenient to construct, the number of fixed points during installation is small, the installation and the disassembly are convenient, the top of the inner cofferdam is provided with the installation groove and the upright post jack, the inner cofferdam is convenient to improve, and the water level sudden expansion can be dealt with; install support piece and at the installation gusset bar of corner between inlayer and outer, can increase the joint strength between inlayer cofferdam and the outer cofferdam, improve its shock resistance.

Description

A two-layer equation cofferdam for hydraulic engineering construction

Technical Field

The utility model relates to a hydraulic engineering technical field, more specifically are a double-deck formula cofferdam for hydraulic engineering construction.

Background

The cofferdam is a temporary enclosure structure constructed for constructing permanent water conservancy facilities in the water conservancy project construction. The cofferdam has the functions of preventing water and soil from entering the building position of the building so as to drain water in the cofferdam, excavate a foundation pit and build the building. The cofferdam is mainly used in hydraulic buildings in general, and the cofferdam is dismantled after being used up except for being used as a part of a formal building. The cofferdam height is higher than the highest water level that may occur during construction.

At present, the prior cofferdam has the following problems: (1) the cofferdam is of a round structure, so that the number of fixing points is large during installation, the assembly and disassembly are troublesome, the height is not adjustable after the construction is finished, and the cofferdam is difficult to deal with when the water level suddenly rises, so that the construction is influenced; (2) the structural strength is weak and the impact resistance is poor. For this reason, a new scheme needs to be designed to give improvements.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a double-deck formula cofferdam for hydraulic engineering construction has solved the problem that proposes in the background art, satisfies the in-service use demand.

In order to achieve the above object, the utility model provides a following technical scheme: a double-layer cofferdam for hydraulic engineering construction, comprising: the inner cofferdam is arranged in the outer cofferdam, a connecting bin is formed between the inner cofferdam and the outer cofferdam, a supporting piece is arranged in the connecting bin, and the supporting piece comprises a first supporting plate, a second supporting plate and a connecting piece; the inner cofferdam and the outer cofferdam are both of square structures, mounting grooves are formed in the tops of the inner cofferdam, a plurality of upright post jacks are uniformly formed in the mounting grooves, and upright posts are inserted in the upright post jacks; the inner corner of outer cofferdam and the outer corner of inner cofferdam have all been seted up and have been inlayed the groove, it is the T font structure to inlay the groove, and two symmetries set up it is connected with the anchor strut to inlay between the groove, the anchor strut includes connecting rod, fixed plate and adapter sleeve.

As a preferred embodiment of the utility model, adapter sleeve and fixed plate are provided with two sets of and symmetry setting altogether, fixed plate and adapter sleeve inlay with inlaying the groove respectively and be connected, two adapter sleeve respectively with fix the opposite face at two fixed plates, the connecting rod both ends are connected with adapter sleeve respectively.

As an optimal implementation mode of the utility model, the middle part of connecting rod is fixed with the regulating block, the regulating block is hexagonal prism structure, the surperficial both ends symmetry of connecting rod is provided with helicitic texture, be fixed with the nut on the adapter sleeve, the both ends of connecting rod are passed through helicitic texture and are connected with the nut.

As the utility model discloses a preferred embodiment, backup pad one and backup pad two are domes, and the both ends of backup pad one and backup pad two have welded the mosaic plate respectively, the both ends and the laminating of outer cofferdam inner wall of backup pad one, the both ends of backup pad two and the laminating of the outer wall in inlayer cofferdam, through connecting piece fixed connection between backup pad one and the backup pad two.

As an optimal implementation mode of the utility model, all the welding has the cardboard on the inner wall of outer cofferdam and the outer wall of inlayer cofferdam, the cardboard is L shape structure and forms the draw-in groove with outer cofferdam and inlayer cofferdam surface respectively, the both ends of backup pad one and backup pad two all are provided with the mosaic plate, the mosaic plate is inlayed with the draw-in groove and is connected.

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

(1) this double-deck formula cofferdam wholly is square structure, and the cofferdam construction of more circular structure is convenient, and the fixed point during installation is less, and the installation is comparatively convenient with the dismantlement, sets up mounting groove and stand jack at inlayer cofferdam top, is convenient for improve the inlayer cofferdam, can deal with the water level and violently rise.

(2) This double-deck formula cofferdam has installed support piece and at the installation anchor strut of corner between inlayer and the skin, can increase the joint strength between inlayer cofferdam and the outer cofferdam, improves its shock resistance.

Drawings

Fig. 1 is a top view of the double-layer cofferdam for hydraulic engineering construction of the present invention;

fig. 2 is a cross-sectional view of the double-layer cofferdam for hydraulic engineering construction of the present invention;

fig. 3 is a structural diagram of the reinforcing bar of the present invention.

In the figure, an outer cofferdam 1; an inner layer cofferdam 2; an embedding groove 3; a first support plate 4; a connecting member 5; a second support plate 6; a mosaic plate 7; a clamping plate 8; a reinforcing rod 9; a mounting groove 10; a column insertion hole 11; a connecting bin 12; a support 13; a connection sleeve 14; a connecting rod 15; an adjusting block 16; a thread structure 17; a nut 18; and a fixing plate 19.

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.

Referring to fig. 1-3, the present invention provides a technical solution: a double-layer cofferdam for hydraulic engineering construction, comprising: the inner cofferdam 2 is arranged in the outer cofferdam 1, a connecting bin 12 is formed between the inner cofferdam 2 and the outer cofferdam 1, a supporting piece 13 is arranged in the connecting bin 12, the supporting piece 13 comprises a first supporting plate 4, a second supporting plate 6 and a connecting piece 5, the supporting strength of the inner cofferdam 2 and the outer cofferdam 1 is increased by arranging the supporting piece 13 in the connecting bin 12, and the shock resistance is increased by having a certain buffering function; the inner cofferdam 2 and the outer cofferdam 1 are both in square structures, mounting grooves 10 are formed in the tops of the inner cofferdam 2, a plurality of upright post jacks 11 are uniformly formed in the mounting grooves 10, upright posts are inserted in the upright post jacks 11, the upright posts can be inserted in the upright post jacks 11, and then steel plates are fixed on the upright posts to increase the height of the inner layer, so that water level sudden expansion can be responded; inlay groove 3 has all been seted up to the interior turning of outer cofferdam 1 and the outer corner of inner cofferdam 2, inlays groove 3 and is T font structure, and is connected with anchor strut 9 between two symmetrical inlay grooves 3 that set up, and anchor strut 9 includes connecting rod 15, fixed plate 19 and adapter sleeve 14, increases interior, outer joint strength through anchor strut 9, reduces the installation degree of difficulty.

In a further improvement, as shown in fig. 3: the connecting sleeve 14 and the fixing plate 19 are arranged in two groups and are symmetrically arranged, the fixing plate 19 and the connecting sleeve 14 are respectively connected with the embedding groove 3 in an embedding mode, the two connecting sleeves 14 are respectively fixed on opposite surfaces of the two fixing plates 19, and two ends of the connecting rod 15 are respectively connected with the connecting sleeve 14.

In a further improvement, as shown in fig. 3: the middle part of connecting rod 15 is fixed with regulating block 16, regulating block 16 is hexagonal prism structure, the surperficial both ends symmetry of connecting rod 15 is provided with helicitic texture 17, be fixed with nut 18 on connecting sleeve 14, the both ends of connecting rod 15 are passed through helicitic texture 17 and are connected with nut 18, adopt the spanner to rotate regulating block 16, drive connecting rod 15 and rotate, two connecting sleeve 14 receive the screw thread influence and contract to the middle part simultaneously, thereby it is fixed to inside and outside cofferdam, the mode of installation is simple.

Further improved, as shown in fig. 1: the first supporting plate 4 and the second supporting plate 6 are of arch structures, the two ends of the first supporting plate 4 and the two ends of the second supporting plate 6 are respectively welded with the embedded plates 7, the two ends of the first supporting plate 4 are attached to the inner wall of the outer cofferdam 1, the two ends of the second supporting plate 6 are attached to the outer wall of the inner cofferdam 2, the first supporting plate 4 and the second supporting plate 6 are fixedly connected through the connecting piece 5, the supporting plates of the arc structures have certain compression-resistant buffering effects, and the compression resistance is improved.

Specifically, all weld on the inner wall of outer cofferdam 1 and the outer wall of inlayer cofferdam 2 has cardboard 8, cardboard 8 be L shape structure and respectively with

outer cofferdam

1 and 2 surface formation draw-in grooves in inlayer cofferdam, the both ends of backup pad one 4 and backup pad two 6 all are provided with mosaic plate 7, mosaic plate 7 inlays with the draw-in groove and is connected, fixes the backup pad through the mode of inlaying, and it is comparatively convenient to install and dismantle.

The working principle is as follows: when the inner cofferdam 2 is installed in the outer cofferdam 1, firstly fixing the reinforcing rods 9 at the four corners of the lower end, then fixing the reinforcing rods 9 at the four corners of the upper end, inserting the fixing plates 19 into the embedding grooves 3 during fixing, then rotating the adjusting blocks 16 through a wrench, thereby tightening the two fixing plates 19, then installing the supporting pieces 13 in the connecting bin 12, enabling the embedding plates 7 at the two ends of the supporting plate to be respectively inserted into the clamping plates 8, when the water level suddenly swells, connecting the extending plates with the stand columns in a welding manner, then inserting the stand columns into the stand column insertion holes 11, and inserting the lower ends of the extending plates into the installation grooves 10 to increase the height of the inner layer.

Finally, it should be noted that: 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 described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A double-layer cofferdam for hydraulic engineering construction, comprising: outer cofferdam (1) and inlayer cofferdam (2), its characterized in that: the inner cofferdam (2) is arranged in the outer cofferdam (1), a connecting bin (12) is formed between the inner cofferdam (2) and the outer cofferdam (1), a supporting piece (13) is arranged in the connecting bin (12), and the supporting piece (13) comprises a first supporting plate (4), a second supporting plate (6) and a connecting piece (5);

the inner cofferdam (2) and the outer cofferdam (1) are both square structures, mounting grooves (10) are formed in the tops of the inner cofferdam (2), a plurality of upright post jacks (11) are uniformly formed in the mounting grooves (10), and upright posts are inserted in the upright post jacks (11);

inlay groove (3) have all been seted up to the interior corner of outer cofferdam (1) and the outer corner of inlayer cofferdam (2), it is T font structure to inlay groove (3), and two symmetries set up it is connected with reinforcing bar (9) to inlay between groove (3), reinforcing bar (9) include connecting rod (15), fixed plate (19) and adapter sleeve (14).

2. The double-layer cofferdam for hydraulic engineering construction according to claim 1, characterized in that: connecting tube (14) and fixed plate (19) are provided with two sets ofly and the symmetry setting altogether, fixed plate (19) and connecting tube (14) are inlayed with inlaying groove (3) respectively and are connected, two connecting tube (14) respectively with fix the opposite face at two fixed plates (19), connecting rod (15) both ends are connected with connecting tube (14) respectively.

3. The double-layer cofferdam for hydraulic engineering construction according to claim 2, characterized in that: the middle part of connecting rod (15) is fixed with regulating block (16), regulating block (16) are hexagonal prism structure, the surperficial both ends symmetry of connecting rod (15) is provided with helicitic texture (17), be fixed with nut (18) on adapter sleeve (14), the both ends of connecting rod (15) are passed through helicitic texture (17) and are connected with nut (18).

4. The double-layer cofferdam for hydraulic engineering construction according to claim 1, characterized in that: the supporting plate I (4) and the supporting plate II (6) are of arch structures, the two ends of the supporting plate I (4) and the two ends of the supporting plate II (6) are respectively welded with an embedded plate (7), the two ends of the supporting plate I (4) are attached to the inner wall of the outer cofferdam (1), the two ends of the supporting plate II (6) are attached to the outer wall of the inner cofferdam (2), and the supporting plate I (4) is fixedly connected with the supporting plate II (6) through a connecting piece (5).

5. The double-layer cofferdam for hydraulic engineering construction according to claim 4, characterized in that: all welded on the inner wall of outer cofferdam (1) and the outer wall of inlayer cofferdam (2) have cardboard (8), cardboard (8) are L shape structure and respectively with outer cofferdam (1) and inlayer cofferdam (2) surface formation draw-in groove, the both ends of backup pad (4) and backup pad two (6) all are provided with mosaic plate (7), mosaic plate (7) are inlayed with the draw-in groove and are connected.