CN215669609U

CN215669609U - Water conservancy construction prevents dismantlement formula cofferdam that collapses

Info

Publication number: CN215669609U
Application number: CN202121461949.3U
Authority: CN
Inventors: 刘良雄; 廖华华; 李明兴
Original assignee: Guangxi Guilin Chengke Water Conservancy Project Management Co ltd
Current assignee: Guangxi Guilin Chengke Water Conservancy Project Management Co ltd
Priority date: 2021-06-29
Filing date: 2021-06-29
Publication date: 2022-01-28
Anticipated expiration: 2031-06-29

Abstract

The application discloses dismantlement formula cofferdam that collapses is prevented in water conservancy construction, including main steel sheet, the side all is provided with bearing structure around the main steel sheet, main steel sheet both sides all are provided with connection structure, main steel sheet side is provided with limit structure. Carry out the auxiliary stay through the backup pad to main steel sheet both sides or one of them side, place more stably when using at main steel sheet, rethread fixed plate and bracing piece cooperation, the degree of depth is put to convenient burying according to main steel sheet, height and the angle to the backup pad are adjusted, the support intensity after the installation of main steel sheet has been guaranteed, avoid main steel sheet slope or collapse after the installation, thereby guaranteed inside leakproofness effect after the concatenation of main steel sheet is accomplished, avoid outside water conservancy infiltration, guarantee inside dryness fraction, make things convenient for workman's construction, can pass through the spacing direction of spacing carriage release lever, guarantee that every main steel sheet all buries the degree of depth at same, when guaranteeing main steel sheet to assemble, the work load of constructor has been reduced.

Description

Water conservancy construction prevents dismantlement formula cofferdam that collapses

Technical Field

The application relates to a cofferdam, especially a water conservancy construction prevents dismantlement formula cofferdam that collapses.

Background

The cofferdam is a temporary enclosure structure constructed for constructing permanent hydraulic facilities in hydraulic engineering construction, mainly has the functions of preventing water and soil from entering the construction position of a building so as to drain water in the cofferdam, excavate a foundation pit and construct the building, and is mainly used for hydraulic buildings.

When the existing cofferdam is used, in order to facilitate transportation and guarantee stronger supporting force, steel plates are spliced mostly, when the cofferdam is installed, the steel plates are directly inserted into the underground of a corresponding water area, then a plurality of steel plates are arranged to be fixed, but because the thickness of the steel plates is limited, when the cofferdam is used, the steel plates are easy to incline or even collapse under the impact of river water on the outer surface, and the existing cofferdam steel plates are not provided with a supporting structure. Consequently, provide a dismantlement formula cofferdam that collapses is prevented in water conservancy construction to above-mentioned problem.

Disclosure of Invention

The water conservancy construction anti-collapse detachable cofferdam is provided in the embodiment and used for solving the problem that a cofferdam steel plate in the prior art is limited in self supporting capacity and easy to incline or even collapse when in use.

According to one aspect of the application, the collapse-preventing detachable cofferdam for water conservancy construction is provided, and comprises a main steel plate, wherein the front side and the rear side of the main steel plate are both provided with a supporting structure, the two sides of the main steel plate are both provided with a connecting structure, and the side edge of the main steel plate is provided with a limiting structure; bearing structure includes the backup pad, the side is all fixed with the fixed plate symmetrically around the main steel sheet, every the inside all sliding connection of fixed plate has the bracing piece, every all rotate on the bracing piece of fixed plate both sides and be connected with the backup pad, the fixed plate is inside seted up with bracing piece complex regulation spout, every the bracing piece outer end all is fixed with connecting screw, the one end that connecting screw extends to the backup pad outside all is connected with fixed clamp splice through the screw hole

Further, connection structure includes the connecting plate, every the crisscross connecting plate that is fixed with of back end before the main steel sheet both sides, per two all run through between two connecting plates of main steel sheet opposite side has set screw, and set screw extends to the one end of connecting plate front side and all is connected with fixation nut through the screw hole, the rear side all the cover is equipped with sealed backing plate on the set screw of connecting plate rear end.

Further, limit structure includes spacing carriage release lever, one side the main steel sheet top sliding connection of connecting plate top has spacing carriage release lever, main steel sheet opposite side seted up with spacing carriage release lever complex spacing groove, the symmetry is fixed with the spring between spacing carriage release lever and the main steel sheet is inside, spacing carriage release lever top is fixed with the ejector pad.

Furthermore, the height of the supporting plates is smaller than that of the main steel plate, the width of the supporting plates is smaller than that of the fixing plates, and the width of the supporting plates is larger than that of the adjusting sliding grooves.

Furthermore, the supporting plate is internally provided with through holes matched with the supporting rods, the diameters of the fixing clamping blocks are larger than those of the through holes, and the width of the adjusting sliding groove is larger than that of the supporting rods.

Furthermore, the connecting screw outside the fixed clamping block is internally connected with a limiting screw through a thread groove, and the connecting screw inside the fixed clamping block is sleeved with a locking washer.

Furthermore, the height of each connecting plate is smaller than that of the main steel plate, and the width of each connecting plate is smaller than one half of the width of the main steel plate.

Furthermore, the front side of the sealing base plate and the opposite sides of the two connecting plates are glued with sealing rubber gaskets, and the diameter of each sealing base plate is larger than that of the corresponding fixing screw.

Furthermore, the length of the limiting moving rod is greater than that between the two main steel plates, and an L-shaped moving groove matched with the limiting moving rod and the push block is formed in each main steel plate.

Furthermore, the limiting movable rod is located in the middle of the main steel plate, and the width of the limiting movable rod is larger than one half of the width of the main steel plate.

Through the above-mentioned embodiment of this application, the bearing structure of adjustable formula of accomodating has been adopted, when main steel sheet is when using, can carry out the auxiliary stay to main steel sheet through the backup pad of the left and right sides or one side, great improvement support intensity when main steel sheet uses, accomplish dismantling the back in the use, can accomodate the backup pad to the main steel sheet side, make things convenient for moving and transporting of main steel sheet, the problem that current cofferdam steel sheet self support capacity is limited when using inclines easily and collapses even has been solved, the practicality of main steel sheet has been improved.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.

FIG. 1 is a schematic perspective view of an embodiment of the present application;

FIG. 2 is a schematic top cross-sectional view of an installed structure according to an embodiment of the present application;

FIG. 3 is a schematic sectional elevation view of a partial structure after installation according to an embodiment of the present application;

FIG. 4 is an enlarged view of the structure at A in FIG. 2 according to an embodiment of the present application;

fig. 5 is an enlarged schematic view of a structure at B in fig. 2 according to an embodiment of the present application.

In the figure: 1. the main steel plate, 2, a fixing plate, 3, a supporting plate, 4, a supporting rod, 5, an adjusting sliding groove, 6, a connecting screw rod, 7, a fixing clamping block, 8, a locking washer, 9, a limiting screw rod, 10, a connecting plate, 11, a fixing screw rod, 12, a fixing nut, 13, a sealing rubber gasket, 14, a sealing cushion plate, 15, a limiting moving rod, 16, a limiting groove, 17, a pushing block, 18 and a spring.

Detailed Description

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In this application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.

Furthermore, the terms "mounted," "disposed," "provided," "connected," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

The cofferdam in the embodiment can be applied to a construction method for rebuilding an anti-seepage system of the cofferdam. For example, the present embodiment provides a construction method for rebuilding a cofferdam anti-seepage system in a immersed tube tunnel, and the cofferdam in the present embodiment may be used in a construction method for rebuilding a cofferdam anti-seepage system in an immersed tube tunnel.

Taking the remained sand-filled long pipe bag and the riverbed after the original primary cofferdam is flushed as a substrate, and throwing stone blocks on two sides of the substrate to form an inner side riprap weir body and an outer side riprap weir body; filling clay between the inner riprap weir and the outer riprap weir to form a primary clay weir, wherein the inner riprap weir, the outer riprap weir and the primary clay weir form an earth rock cofferdam, and filling a secondary clay weir above the earth rock cofferdam after the earth rock cofferdam is constructed; constructing a plastic concrete drilling secant pile in the middle of a primary clay weir body, wherein a flushed weir body is always in a concave opening along the axis, the stratum of the operation range of the plastic concrete drilling secant pile is mainly long pipe bag filling sand and clay which are not flushed, sand layers on two sides of the opening are thicker, a middle sand layer is thinner, in order to ensure the strength of a weak position of a reconstructed cofferdam, constructing a triple-pipe rotary jet pile at the corner of the plastic concrete drilling secant pile and the joint of the plastic concrete drilling secant pile and an original plastic concrete impervious wall, paving reinforcing mesh sheets on the side slopes and the top surfaces of the primary clay weir body and a secondary clay weir body, and molding early strength concrete; reinforcing steel bar net pieces at the positions of the slope top, the slope bottom and the variable slope point of the side slope must be continuously arranged, net piece reinforcing steel bars for fixing the reinforcing steel bars are driven into the side slope and the slope top, and the reinforcing steel bars and the reinforcing steel bar net pieces are firmly bound.

Of course, the embodiment can also be used for other construction methods for rebuilding the cofferdam anti-seepage system. Here, details are not repeated, and the cofferdam of the embodiment of the present application is introduced below.

Referring to fig. 1-5, a water conservancy construction collapse prevention detachable cofferdam comprises a main steel plate 1, wherein the front side and the rear side of the main steel plate 1 are both provided with a supporting structure, both sides of the main steel plate 1 are both provided with a connecting structure, and the side edge of the main steel plate 1 is provided with a limiting structure; the supporting structure comprises supporting plates 3, the front side and the rear side of a main steel plate 1 are symmetrically fixed with fixing plates 2, supporting rods 4 are connected to the inner parts of the fixing plates 2 in a sliding manner, the supporting plates 3 are connected to the supporting rods 4 on the two sides of each fixing plate 2 in a rotating manner, adjusting sliding grooves 5 matched with the supporting rods 4 are formed in the fixing plates 2, connecting screw rods 6 are fixed to the outer ends of the supporting rods 4, one ends, extending to the outer sides of the supporting plates 3, of the connecting screw rods 6 are connected with fixing clamping blocks 7 through threaded holes, the main steel plate 1 is supported in an auxiliary manner through the supporting plates 3, therefore, the main steel plate 1 is more stable when being placed, the main steel plate 1 is prevented from inclining or collapsing due to external water flow impact, and the supporting force of the main steel plate 1 is greatly improved;

the connecting structure comprises connecting plates 10, the front end and the rear end of each of two sides of each main steel plate 1 are fixed with the connecting plates 10 in a staggered mode, a fixing screw 11 penetrates through the two connecting plates 10 on the opposite sides of each main steel plate 1, one end, extending to the front side of each connecting plate 10, of each fixing screw 11 is connected with a fixing nut 12 through a threaded hole, a sealing cushion plate 14 is sleeved on each fixing screw 11 at the rear end of each rear connecting plate 10, the connecting plates 10 are tightly attached to each other, the sealing performance of the inner side of each main steel plate 1 is guaranteed, external river water and the like are prevented from permeating into the cofferdam, the dryness of the interior of the cofferdam is guaranteed, and convenience is brought to constructors for operation; the limiting structure comprises a limiting moving rod 15, the top end of the main steel plate 1 above the connecting plate 10 on one side is connected with the limiting moving rod 15 in a sliding mode, the other side of the main steel plate 1 is provided with a limiting groove 16 matched with the limiting moving rod 15, springs 18 are symmetrically fixed between the limiting moving rod 15 and the inside of the main steel plate 1, the top end of the limiting moving rod 15 is fixed with a push block 17, and through limiting guiding of the limiting moving rod 15, when the other main steel plate 1 is buried to be kept at the same height and level with the buried main steel plate 1, the limiting moving rod 15 can be inserted into the limiting groove 16 under the pushing of the spring 18, so that the subsequently buried main steel plate 1 can be quickly aligned with the front main steel plate 1, and the main steel plate 1 is more convenient and labor-saving to mount;

the heights of the supporting plates 3 are all smaller than the height of the main steel plate 1, the widths of the supporting plates 3 are all smaller than the width of the fixing plate 2, and the widths of the supporting plates 3 are all larger than the width of the adjusting chute 5, so that the supporting plates 3 are prevented from influencing the normal installation of the main steel plate 1, the supporting plates 3 can be enabled to be abutted against the side edges of the fixing plate 2 under the driving of the fixing clamping blocks 7, and the supporting plates 3 can be conveniently fixed; through holes matched with the supporting rods 4 are formed in the supporting plates 3, the diameters of the fixing clamping blocks 7 are larger than those of the through holes, the widths of the adjusting chutes 5 are larger than those of the supporting rods 4, the supporting plates 3 can conveniently rotate on the supporting rods 4, the fixing clamping blocks 7 can be abutted against the supporting plates 3, and the supporting rods 4 can rotate on the adjusting chutes 5; the inner parts of the connecting screw rods 6 on the outer sides of the fixed clamping blocks 7 are connected with limiting screw rods 9 through thread grooves, the connecting screw rods 6 on the inner sides of the fixed clamping blocks 7 are sleeved with anti-loosening washers 8, the fixed clamping blocks 7 are limited through the limiting screw rods 9, the fixed clamping blocks 7 are prevented from being excessively rotated and separated from the supporting plate 3, the supporting plate 3 can be detached, maintained or replaced by screwing the limiting screw rods 9, the fixed clamping blocks 7 and the connecting screw rods 6 are more stably and firmly connected through the anti-loosening washers 8, and the anti-loosening washers 8 achieve double effects of loosening prevention and tightening prevention by means of tension between the two gaskets; the heights of the connecting plates 10 are smaller than the height of the main steel plate 1, and the widths of the connecting plates 10 are smaller than half of the width of the main steel plate 1, so that the connecting plates 10 are prevented from influencing the installation of the main steel plate 1, and the two connecting plates 10 can be conveniently aligned and fixed; the front side of the sealing cushion plate 14 and the opposite side of the two connecting plates 10 are glued with sealing rubber cushions 13, the diameter of each sealing cushion plate 14 is larger than that of the corresponding fixing screw 11, the sealing performance of the connecting positions of the connecting plates 10 is improved through the sealing rubber cushions 13, and meanwhile through holes which are formed in the connecting plates 10 and matched with the fixing screw 11 are plugged through the sealing cushion plates 14, so that the sealing performance of the inner side of the main steel plate 1 is guaranteed; the length of the limiting moving rod 15 is larger than the length between the two main steel plates 1, and an L-shaped moving groove matched with the limiting moving rod 15 and the push block 17 is formed in each main steel plate 1, so that the limiting moving rod 15 can be inserted into the limiting groove 16 under the pushing of the spring 18, the main steel plates 1 which are installed subsequently can be limited and fixed, and each main steel plate 1 can be aligned and assembled conveniently; spacing carriage release lever 15 is located main steel sheet 1 intermediate position department, and the width of spacing carriage release lever 15 is greater than the half of the width of main steel sheet 1, guarantees that spacing carriage release lever 15 can carry on spacingly to connecting plate 10 to make things convenient for main steel sheet 1 to align the laminating.

When the utility model is used, when main steel plates 1 need to be installed, one main steel plate 1 is embedded into water according to the required embedding depth, then the other main steel plate 1 is aligned and placed beside the main steel plate 1, so that the connecting plate 10 extrudes the limiting movable rod 15, the limiting movable rod 15 compresses the spring 18 to move to the inside of the main steel plate 1, then the other main steel plate 1 is continuously embedded, when the other main steel plate 1 moves to the position that the limiting groove 16 is aligned with the limiting movable rod 15 on the side edge, the limiting of the limiting movable rod 15 by the connecting plate 10 is released, the limiting movable rod 15 can move to the inside of the limiting groove 16 under the pushing of the spring 18, namely, the two main steel plates 1 are aligned and limited, the sealing cushion plate 14 is sleeved on the fixing screw rods 11, then the fixing screw rods 11 are inserted into the two aligned connecting plates 10 one by one, then the fixing nuts 12 are screwed to the fixing screw rods 11 to penetrate to one end of the front side, can splice two main steel sheet 1 fixedly, follow-up main steel sheet 1 can be fixed with the principle, main steel sheet 1 is fixed to be accomplished the back, it is different according to the relief on every main steel sheet 1 both sides, twist the fixed clamp splice 7 of both sides, make the fixed clamp splice 7 of both sides to the clamp of backup pad 3 fixed, make the backup pad 3 of both sides to the clamp of fixed plate 2 remove simultaneously, under the cooperation of adjusting spout 5, after pulling backup pad 3 to required position, rotate backup pad 3 under the cooperation of bracing piece 4, required support angle when rotating backup pad 3 after, twist once more and move fixed clamp splice 7 and press from both sides tight fixedly again backup pad 3, when needs split backup pad 3, twist earlier the stop screw 9 of both sides, twist the fixed clamp splice 7 of both sides again, can take bracing piece 4 out from fixed plate 2 and backup pad 3 insidely.

The application has the advantages that:

1. the auxiliary supporting device is simple in operation, the two sides or one side of the main steel plate 1 are supported in an auxiliary mode through the supporting plates 3, the main steel plate 1 is placed more stably when in use, and then the fixing plates 2 are matched with the supporting rods 4, so that the height and the angle of the supporting plates 3 can be conveniently adjusted according to the embedding depth of the main steel plate 1, the supporting strength of the main steel plate 1 after installation is guaranteed, and the main steel plate 1 is prevented from inclining or collapsing after installation;

2. the sealing device is reasonable in structure, the two connecting plates 10 are attached and clamped and then matched with the sealing base plate 14, the sealing performance of the joint of the two main steel plates 1 is ensured while the two main steel plates 1 are conveniently spliced and installed, so that the sealing effect of the inner part after the main steel plates 1 are spliced is ensured, external water conservancy infiltration is avoided, the dryness of the inner part is ensured, and the construction of workers is facilitated;

3. this application is rational in infrastructure, through the cooperation of spacing carriage release lever 15, it is spacing to align two main steel sheets 1, when the installation, only need the burying of a main steel sheet 1 of regulation to put the degree of depth, can be through the spacing direction of spacing carriage release lever 15, guarantee that every main steel sheet 1 all buries the degree of depth with one, regularity when guaranteeing main steel sheet 1 to assemble has reduced constructor's work load.

It is well within the skill of those in the art to implement, without undue experimentation, the present application is not directed to software and process improvements, as they relate to circuits and electronic components and modules.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. The utility model provides a dismantlement formula cofferdam that collapses is prevented in water conservancy construction which characterized in that: the steel plate comprises a main steel plate (1), wherein supporting structures are arranged on the front side and the rear side of the main steel plate (1), connecting structures are arranged on the two sides of the main steel plate (1), and a limiting structure is arranged on the side edge of the main steel plate (1); bearing structure includes backup pad (3), the side is all fixed with fixed plate (2) symmetrically around main steel sheet (1), every fixed plate (2) inside sliding connection all has bracing piece (4), every all rotate on bracing piece (4) of fixed plate (2) both sides and be connected with backup pad (3), fixed plate (2) inside seted up with bracing piece (4) complex regulation spout (5), every bracing piece (4) outer end all is fixed with connecting screw (6), the one end that connecting screw (6) extend to backup pad (3) outside all is connected with fixed clamp splice (7) through the screw hole.

2. The water conservancy construction collapse prevention detachable cofferdam of claim 1, characterized in that: connection structure includes connecting plate (10), every crisscross connecting plate (10) that is fixed with of rear end before main steel sheet (1) both sides, per two all run through between two connecting plates (10) of main steel sheet (1) opposite side has clamping screw (11), and clamping screw (11) extend to the one end of connecting plate (10) front side all is connected with fixation nut (12), the rear side all the cover is equipped with sealed backing plate (14) on clamping screw (11) of connecting plate (10) rear end.

3. The water conservancy construction collapse prevention detachable cofferdam of claim 2, characterized in that: limiting structure includes spacing carriage release lever (15), one side main steel sheet (1) top sliding connection of connecting plate (10) top has spacing carriage release lever (15), main steel sheet (1) opposite side seted up with spacing carriage release lever (15) complex spacing groove (16), the symmetry is fixed with spring (18) between spacing carriage release lever (15) and main steel sheet (1) inside, spacing carriage release lever (15) top is fixed with ejector pad (17).

4. The water conservancy construction collapse prevention detachable cofferdam of claim 1, characterized in that: the height of backup pad (3) all is less than the height of main steel sheet (1), the width of backup pad (3) all is less than the width of fixed plate (2), the width of backup pad (3) all is greater than the width of adjusting spout (5).

5. The water conservancy construction collapse prevention detachable cofferdam of claim 1, characterized in that: the supporting plate (3) is internally provided with through holes matched with the supporting rods (4), the diameter of the fixing clamping block (7) is larger than that of the through holes, and the width of the adjusting sliding groove (5) is larger than that of the supporting rods (4).

6. The water conservancy construction collapse prevention detachable cofferdam of claim 1, characterized in that: the connecting screw rod (6) outside the fixed clamping block (7) is internally connected with a limiting screw rod (9) through a thread groove, and the connecting screw rod (6) inside the fixed clamping block (7) is sleeved with a locking washer (8).

7. The water conservancy construction collapse prevention detachable cofferdam of claim 2, characterized in that: the height of each connecting plate (10) is smaller than that of the main steel plate (1), and the width of each connecting plate (10) is smaller than one half of that of the main steel plate (1).

8. The water conservancy construction collapse prevention detachable cofferdam of claim 2, characterized in that: the front side of the sealing pad (14) and the opposite side of the two connecting plates (10) are glued with sealing rubber pads (13), and the diameters of the sealing pad (14) are larger than those of the fixing screw rods (11).

9. The water conservancy construction collapse prevention detachable cofferdam of claim 3, characterized in that: the length of the limiting moving rod (15) is larger than the length between the two main steel plates (1), and an L-shaped moving groove matched with the limiting moving rod (15) and the push block (17) is formed in each main steel plate (1).

10. The water conservancy construction collapse prevention detachable cofferdam of claim 3, characterized in that: the limiting moving rod (15) is located in the middle of the main steel plate (1), and the width of the limiting moving rod (15) is larger than one half of the width of the main steel plate (1).