A water retaining structure for river regulation

Abstract

The application discloses a water retaining structure for river regulation and relates to the technical field of river construction. The water retaining structure comprises a cofferdam formwork, the cofferdam formwork comprises a plurality of detachably connected sub-formworks, the backwater side of the sub-formwork is provided with a water retaining plate, the bottom surface of the water retaining plate is located on a riverbed, a connecting device is arranged between two adjacent sub-formworks and used for stably connecting the adjacent sub-formworks, a supporting device is arranged on the backwater side of the sub-formwork in an inclined mode, one end of the supporting device is fixedly connected with the sub-formwork, and the other end of the supporting device is inserted into the inside of the riverbed, and a fixing device penetrates through the water retaining plate and is inserted into the inside of the riverbed. The cofferdam formwork is composed of the plurality of sub-formworks, installation or dismounting can be rapidly completed, the construction speed is improved, the personnel and material investment of engineering preparation is reduced, and the engineering investment is saved. The cofferdam formwork is connected and fixed through the connecting device, the supporting device and the fixing device, so that the plurality of sub-formworks can be stably connected.

Description

Technical Field

[0001] The present invention relates to the technical field of river channel construction, and in particular to a water retaining structure for river channel regulation. Background Art

[0002] Scour and siltation often occur in rivers, which are prone to water disasters and hinder the development of water conservancy. Therefore, appropriate measures must be taken to regulate the river channel. During the regulation construction process, in order to create dry land construction conditions, temporary water retaining structures need to be set up in the construction section to ensure the safety of construction personnel and machinery.

[0003] Existing temporary water retaining structures mainly include concrete cofferdams, mortar masonry cofferdams, and steel sheet pile cofferdams. Among them, concrete cofferdams and mortar masonry cofferdams require a certain amount of time to build strength after construction. Their construction labor costs are high, the construction period is long, and there is also the problem of inconvenience in dismantling. When using a steel sheet pile cofferdam as a structural form for water retaining, the steel sheet piles need to be driven into the soil to a certain depth during construction, and the space between the steel sheet piles needs to be filled with soil. This takes a long time to complete and the cost is also high. Therefore, there is an urgent need to design a water retaining structure that is easy to install and disassemble, has a short construction period, and is low in cost. Summary of the Invention

[0004] The main purpose of the present invention is to provide a water retaining structure for river regulation to solve the problems existing in the prior art.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] A water retaining structure for river regulation, comprising:

[0007] The cofferdam template includes a plurality of detachably connected sub-templates, a water retaining plate provided on the backwater side of the sub-template, the bottom surface of the water retaining plate being located on the riverbed, the sub-template including an upper template and a lower template, the bottom of the lower template being installed on the riverbed, the bottom of the upper template being fixedly connected to the top of the lower template, and a flood-proof airbag being installed inside the upper template;

[0008] A connecting device, the connecting device is provided between two adjacent sub-templates and is used to firmly connect the adjacent sub-templates;

[0009] A supporting device, the supporting device is obliquely arranged on the water-repellent side of the split template, one end of the supporting device is fixedly connected to the split template, and the other end is inserted into the interior of the riverbed;

[0010] A fixing device is provided, wherein the fixing device passes through the water retaining plate and is inserted into the interior of the riverbed.

[0011] Furthermore, a first groove and a first protrusion are respectively provided on both sides of each lower template, and the sizes of the first groove and the first protrusion match. A second groove and a second protrusion are respectively provided on both sides of each upper template, and the sizes of the second groove and the second protrusion match.

[0012] Furthermore, the connecting device includes a first fixed block, a second fixed block, an insertion rod and a buckle, the first fixed block and the second fixed block are respectively fixedly arranged on the two adjacent sub-templates, the buckle is fixedly arranged on the second fixed block, the first fixed block and the buckle are respectively provided with a first through hole and a second through hole, the insertion rod passes through the second through hole and the first through hole in sequence, and is clamped with the buckle.

[0013] Furthermore, a cross-shaped through slot is provided on the buckle, and a cross-shaped lug is provided on one end of the insertion rod close to the second fixing block, and the cross-shaped lug matches the size of the cross-shaped through slot.

[0014] Furthermore, the supporting device includes a sleeve, a support rod and a connecting pin. The sleeve is fixedly arranged on the sub-template. One end of the support rod is arranged inside the sleeve, and the other end is inserted into the interior of the riverbed. Connecting holes are provided on the sleeve and the support rod. The connecting pin passes through the connecting hole and is locked by a fastening nut.

[0015] Furthermore, an inclined groove is provided on the outer side of the water baffle, and the outer side wall of the support rod is disposed in contact with the inclined groove.

[0016] Furthermore, the fixing device includes a fixing rod and an adjusting handle, the adjusting handle is threadedly connected to the top of the fixing rod, a threaded hole is provided on the water retaining plate, and the fixing rod passes through the threaded hole and is inserted into the interior of the riverbed.

[0017] Furthermore, a portion of the fixing rod located at the lower portion of the water baffle is provided with a spiral blade, and the spiral blade is fixedly coiled on the outer side of the fixing rod.

[0018] Furthermore, it also includes a reinforcing rod, the top of which is connected to the water retaining plate, the middle part of which is connected to the bottom of the sub-template, and the bottom part of which is obliquely inserted into the interior of the riverbed.

[0019] Furthermore, a guide pipe is provided on the lower template, and a guide hole is reserved on the guide pipe, and the diameter of the guide hole is 500mm or 800mm.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] By setting up multiple sub-forms to form the cofferdam, installation or disassembly can be completed quickly, which improves the construction speed, reduces the personnel and material investment in project preparation, and saves project investment; the cofferdam formwork is connected and fixed using connecting devices, supporting devices and fixing devices, so that the multiple sub-forms can be stably connected. The multiple sub-forms are connected as a whole to jointly withstand the water pressure on the water surface, which improves the stability of the device when retaining water. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0023] Figure 2 It is a side view of the water retaining structure of the present invention.

[0024] Figure 3 It is a schematic diagram of the lower template structure of the present invention.

[0025] Figure 4 It is a cross-sectional view of the connecting device of the present invention.

[0026] Figure 5 Schematic diagram of the exploded structure of the connecting device of the present invention.

[0027] Among them, 1-sub-template, 11-upper template, 12-lower template, 13-first groove, 14-first protrusion, 15-second groove, 16-second protrusion, 2-connecting device, 21-first fixed block, 22-second fixed block, 23-insertion rod, 24-buckle, 25-cross-shaped through groove, 26-cross-shaped lug, 3-support device, 31-sleeve, 32-support rod, 4-fixing device, 41-fixing rod, 42-adjusting handle, 5-water baffle, 6-reinforcement rod. DETAILED DESCRIPTION

[0028] The technical solution of the present invention is further described below with reference to the accompanying drawings and embodiments.

[0029] Combine Figures 1 to 5 , the present invention provides a water retaining structure for river regulation, comprising: a cofferdam template, a connecting device 2, a supporting device 3 and a fixing device 4;

[0030] The cofferdam template includes a plurality of detachably connected sub-templates 1, and a water retaining plate 5 is provided on the backwater side of the sub-template 1. The bottom surface of the water retaining plate 5 is located on the riverbed. The sub-template 1 includes an upper template 11 and a lower template 12. The bottom of the lower template 12 is installed on the riverbed, and the bottom of the upper template 11 is fixedly connected to the top of the lower template 12. A flood-proof airbag is installed inside the upper template 11. In this embodiment, in order to prevent the buoyancy generated by the flood-proof airbag from causing the stability of the lower template 12 to deteriorate, a load can be added to the top of the upper template 11, such as a counterweight block. When the flow of the river is large, after the river water overflows the lower template 12, the upper template 11 needs to be waterproof. The upper flood-proof airbag can be inflated to quickly form an effective temporary water barrier. During the dry season, the flow is not large and needs to be urgently disassembled. The inflated airbag is quickly deflated and then removed.

[0031] The connecting device 2 is provided between two adjacent sub-forms 1 and is used to firmly connect the adjacent sub-forms 1;

[0032] The support device 3 is obliquely arranged on the backwater side of the split template 1, with one end fixedly connected to the split template 1 and the other end inserted into the interior of the riverbed;

[0033] The fixing device 4 passes through the water retaining plate 5 and is inserted into the interior of the riverbed.

[0034] Preferably, each lower template 12 is provided with a first groove 13 and a first protrusion 14 on both sides, and the sizes of the first groove 13 and the first protrusion 14 match. Each upper template 11 is provided with a second groove 15 and a second protrusion 16 on both sides, and the sizes of the second groove 15 and the second protrusion 16 match. In this embodiment, the cooperation of the grooves and the protrusions allows for rapid assembly of multiple sub-templates 1, forming a water-retaining cofferdam and shortening the construction period.

[0035] Preferably, the connecting device 2 includes a first fixed block 21, a second fixed block 22, an insertion rod 23 and a buckle 24. The first fixed block 21 and the second fixed block 22 are respectively fixedly arranged on the two adjacent sub-templates 1, and the buckle 24 is fixedly arranged on the second fixed block 22. The first fixed block 21 and the buckle 24 are respectively provided with a first through hole and a second through hole. The insertion rod 23 passes through the second through hole and the first through hole in sequence and is clamped with the buckle 24. The close fit between the insertion rod 23 and the buckle 24 is utilized to complete the stable connection between the adjacent sub-templates 1.

[0036] In this embodiment, a cross-shaped through groove 25 is provided on the buckle 24, and a cross-shaped lug 26 is provided at one end of the insertion rod 23 close to the second fixing block 22. The cross-shaped lug 26 matches the size of the cross-shaped through groove 25. After the insertion rod 23 passes through the second through hole and the first through hole in sequence, the end that passes through the first through hole is provided with a thread and is locked by a fastening nut. The cross-shaped lug 26 is just located in the cross-shaped through groove 25, and the two form a tight connection.

[0037] In another embodiment, an electromagnet is provided on the cross-shaped lug 26, and an electromagnetic armature is provided on the retaining ring 24, and the setting position of the electromagnetic armature does not overlap with the cross-shaped through-slot 25. After the insertion rod 23 passes through the second through hole and the first through hole in sequence, the insertion rod 23 is rotated so that the position of the cross-shaped lug 26 and the cross-shaped through-slot 25 are deviated, that is, the cross-shaped lug 26 does not enter the cross-shaped through-slot 25 and is located on the outside of the retaining ring 24. The insertion rod 23 is continuously rotated. When the electromagnet on the cross-shaped lug is relative to the electromagnetic armature on the retaining ring 24, the two are attracted to each other, so that the insertion rod 23 is tightly connected with the retaining ring 24.

[0038] Preferably, the support device 3 includes a sleeve 31, a support rod 32, and a connecting pin. The sleeve 31 is fixedly mounted on the split template 1. One end of the support rod 32 is positioned within the sleeve 31, and the other end is inserted into the riverbed. Both the sleeve 31 and the support rod 32 are provided with connecting holes, and the connecting pin passes through the holes and is locked with a fastening nut. The oblique support rod 32 provides support on the backwater side of the split template 1, ensuring its stability and preventing it from shifting or collapsing when river water rushes towards it.

[0039] In this embodiment, an inclined groove is provided on the outer side of the water baffle 5 , and the outer side wall of the support rod 32 is disposed in the inclined groove to further ensure the stability of the support rod 32 .

[0040] Preferably, the fixing device 4 includes a fixing rod 41 and an adjusting handle 42, the adjusting handle 42 is threadedly connected to the top of the fixing rod 41, and a threaded hole is provided on the water retaining plate 5, and the fixing rod 41 passes through the threaded hole and is inserted into the interior of the riverbed.

[0041] In this embodiment, the portion of the fixing rod 41 located below the water retaining plate 5 is provided with a spiral blade, which is fixedly coiled around the outer side of the fixing rod 41. The spiral blade increases the contact area between the fixing rod 41 and the riverbed, thereby enabling the fixing rod 41 to be more firmly inserted into the riverbed, thereby improving the stability of the cofferdam template when subjected to water pressure.

[0042] Preferably, a reinforcing rod 6 is further included, wherein the top of the reinforcing rod 6 is connected to the water retaining plate 5, the middle portion is connected to the bottom of the split template 1, and the bottom portion is inclined and inserted into the interior of the riverbed. The top of the reinforcing rod 6 is located behind the inclined groove of the water retaining plate 5. The reinforcing rod 6 is used to connect the water retaining plate 5, the split template 1 and the support rod 32 to form a whole, so that the cofferdam template forms a more stable structure.

[0043] Preferably, a guide pipe is provided on the lower template 12, and a guide hole is reserved on the guide pipe, and the diameter of the guide hole is 500 mm or 800 mm.

[0044] In this embodiment, the lower template 12 is made of steel, and the upper template 11 is made of PE or ABS.

[0045] The above description is merely a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any minor modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A water retaining structure for river regulation, characterized in that: include: The cofferdam template includes multiple detachably connected sub-templates, each sub-template having a water retaining plate on its backwater side, the bottom of which is located on the riverbed, and an upper template and a lower template. The bottom of the lower template is installed on the riverbed, and the bottom of the upper template is fixedly connected to the top of the lower template. A flood-proof airbag is installed inside the upper template. The lower template is made of steel, and the upper template is made of PE or ABS. A connecting device, the connecting device is provided between two adjacent sub-templates and is used to firmly connect the adjacent sub-templates; A supporting device, the supporting device is obliquely arranged on the water-repellent side of the split template, one end of the supporting device is fixedly connected to the split template, and the other end is inserted into the interior of the riverbed; a fixing device, the fixing device passing through the water retaining plate and inserted into the interior of the riverbed; It also includes a reinforcing rod, the top of which is connected to the water retaining plate, the middle of which is connected to the bottom of the sub-template, and the bottom of which is obliquely inserted into the interior of the riverbed.

2. A water retaining structure for river regulation according to claim 1, characterized in that: A first groove and a first protrusion are respectively provided on both sides of each lower template, and the sizes of the first groove and the first protrusion match. A second groove and a second protrusion are respectively provided on both sides of each upper template, and the sizes of the second groove and the second protrusion match.

3. A water retaining structure for river regulation according to claim 1, characterized in that: The connecting device includes a first fixed block, a second fixed block, an insertion rod and a buckle. The first fixed block and the second fixed block are respectively fixedly arranged on two adjacent sub-templates, and the buckle is fixedly arranged on the second fixed block. The first fixed block and the buckle are respectively provided with a first through hole and a second through hole. The insertion rod passes through the second through hole and the first through hole in sequence and is clamped with the buckle.

4. A water retaining structure for river regulation according to claim 3, characterized in that: A cross-shaped through slot is provided on the buckle ring, and a cross-shaped lug is provided on one end of the insertion rod close to the second fixing block. The cross-shaped lug matches the size of the cross-shaped through slot.

5. A water retaining structure for river regulation according to claim 1, characterized in that: The supporting device includes a sleeve, a supporting rod and a connecting pin. The sleeve is fixedly arranged on the sub-template. One end of the supporting rod is arranged inside the sleeve, and the other end is inserted into the interior of the riverbed. Connecting holes are provided on the sleeve and the supporting rod. The connecting pin passes through the connecting hole and is locked by a fastening nut.

6. A water retaining structure for river regulation according to claim 5, characterized in that: An inclined groove is provided on the outer side of the water baffle, and the outer side wall of the support rod is abutted and arranged in the inclined groove.

7. A water retaining structure for river regulation according to claim 1, characterized in that: The fixing device includes a fixing rod and an adjusting handle, the adjusting handle is threadedly connected to the top of the fixing rod, a threaded hole is provided on the water retaining plate, and the fixing rod passes through the threaded hole and is inserted into the interior of the riverbed.

8. A water retaining structure for river regulation according to claim 7, characterized in that: The portion of the fixing rod located at the lower portion of the water baffle is provided with a spiral blade, and the spiral blade is fixedly coiled on the outer side of the fixing rod.

9. The water retaining structure for river regulation according to claim 1, characterized in that: The lower template is provided with a guide pipe, and a guide hole is reserved on the guide pipe. The diameter of the guide hole is 500mm or 800mm.

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