A suction-type combined pile-dam structure for emergency rescue in river channels

Abstract

A suction-type composite pile-dam structure for emergency rescue in a river channel includes a series of suction-type pile-dam units with the same structure; a plurality of suction-type pile-dam units are assembled and connected on the river bottom according to the axis of the dam to form a complete set of suction-type composite pile-dams; each suction-type pile-dam unit includes a negative pressure suction pipeline and a cover plate that is rectangular and horizontally arranged as a whole, the length direction of the cover plate is the left-right direction, a plurality of pipe piles are vertically arranged on the top surface of the cover plate, all the pipe piles are arranged at intervals along the center line of the length direction of the cover plate, a bearing tube with an open bottom is arranged in the middle of the bottom surface of the cover plate along the length direction, and a negative pressure suction pipeline extends downward along the inside of the pipe pile and passes through the cover plate to communicate with the inside of the bearing tube. The present invention has the advantages of suction foundation, gravity foundation, floating foundation, and permeable pile dam at the same time, has a wide geological application range, can be prefabricated as a whole module on land, floated as a whole in the river channel, installed by suction, assembled in modules, and can be disassembled and reused, so that the construction costs of construction, installation, and demolition are greatly reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of pile dams for river regulation, and in particular relates to a suction-type combined pile dam structure for river rescue. Background Art

[0002] Surveys of river regulation projects at home and abroad show that spur dikes are widely used in river regulation projects, which have the function of controlling water flow and stabilizing river flow. Most of these spur dikes are built with earth, stone or concrete materials, such as wooden pile spur dikes, earth spur dikes, and riprap dams. Different types of protection projects have different applicable conditions.

[0003] The riprap structure is the most commonly used protective structure. The protective body is a dispersed structure and can adapt well to the changes of the riverbed. The gabion structure has a large volume, weight, good impact resistance and flexibility. It contains pebbles, boulders, etc., which can adapt to the changes of the riverbed. The bag concrete structure pumps concrete or mortar into a bag made of synthetic fiber, solidifies it into a concrete face, and can be laid on the bank slope. It has good wind and wave impact resistance and plays an important role in emergency projects. The steel-concrete cast-in-place pile dam uses a combination drill to preset slots according to a certain design depth, spacing, inclination, etc., and then pours concrete piles into the interior to form a closed concrete continuous wall. This type of dam makes full use of the diversion effect of the pile dam and the permeable siltation and beach-building effect, so that the scouring in front of the dam and the silting behind the dam are combined, so as to achieve the purpose of returning the water flow and controlling the river. This pile dam has been widely used in the river regulation of the wandering river section in the lower reaches of the Yellow River. The hydraulic plug-in sheet pile dam uses precast concrete hollow square piles, steel pipe piles or pipe piles, and uses the cavity of the piles to form a high-pressure jet channel. The main technical features of its construction process are hydraulic cutting (internal flushing and external drainage), guiding positioning and integral connection. It is mostly suitable for emergency construction of repair projects on soft soil. The assembled diversion pile dam is a permeable pile dam structure with prestressed reinforced concrete pipe piles as the main components. The piles are inserted (pulled) by cranes, high-pressure water jets, etc., realizing the reuse of assembled diversion pile dams.

[0004] The above existing river regulation projects are difficult to adapt to the randomness, suddenness and temporary nature of the current small floods in the Yellow River, resulting in adverse river conditions from time to time. In addition, the existing diversion and bank protection projects have a long construction period and high construction costs, resulting in many small water abnormalities that cannot be handled in a timely manner, which brings great passiveness to the flood control of the Yellow River. Therefore, in order to address the problem of abnormal river conditions during small floods, it is urgent and necessary to research and develop a new type of diversion pile dam that is easy to build, fast to construct, and can be disassembled and reused. Summary of the invention

[0005] In order to solve the deficiencies in the prior art, the present invention provides a river rescue suction type combined pile dam structure which is easy to build, fast to construct, stable and reliable, and can be disassembled and reused.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions: a river rescue suction type composite pile dam structure, comprising a series of suction type pile dam units with the same structure; a plurality of suction type pile dam units are assembled and connected on the river bottom according to the dam axis to form a complete set of suction type composite pile dams;

[0007] Each suction pile dam unit includes a negative pressure suction pipeline and a rectangular and horizontally arranged cover plate. The left and right directions of the cover plate are the length direction. A number of pipe piles are vertically arranged on the top surface of the cover plate. All the pipe piles are arranged at intervals along the center line of the length direction of the cover plate. A bearing tube with an open bottom is arranged in the middle of the bottom surface of the cover plate along the length direction. The negative pressure suction pipeline extends downward along the inside of the pipe pile and passes through the cover plate to communicate with the inside of the bearing tube.

[0008] A concrete reinforcement structure is cast on the upper surface of the cover plate at the front and rear sides of the lower end of the pipe pile, and the upper surface of the cover plate is fixedly connected with rivets pre-buried in the concrete reinforcement structure.

[0009] The lower surface of the cover plate is provided with anti-impact cylinders located in front and rear of the bearing cylinder, the bottom of the anti-impact cylinder is open, the length of the anti-impact cylinder itself is shorter than the length of the bearing cylinder itself, and a plurality of criss-crossing partition reinforcement plates are provided inside the anti-impact cylinder.

[0010] A number of criss-cross partition plates are arranged inside the bearing tube, which divide the internal space of the bearing tube into a number of cabins with open bottoms. The tops of the two corresponding cabins at the front and rear are connected to the lower port of a negative pressure suction pipeline in a pipe pile, and an air valve is provided at the lower port of the negative pressure suction pipeline.

[0011] A top-to-bottom transparent pile guide pipe is provided on the cover plate on the left side of the leftmost pipe pile and on the right side of the rightmost pipe pile. The pile guide pipe is a trumpet-mouth structure that is thick at the top and thin at the bottom. A fixed single pile is arranged in the pile guide pipe, and the lower end of the fixed single pile extends into the riverbed soil.

[0012] When the bearing tube and the compartment plate are reinforced concrete structures, a jet pipeline is arranged at the bottom of the bearing tube and the compartment plate, and a high-pressure jet hole for spraying downward is opened on the jet pipeline.

[0013] The upper side of the bearing tube extends upward and protrudes from the upper surface of the cover plate to serve as a retaining edge for the concrete reinforcement structure during pouring. The upper surface of the concrete reinforcement structure gradually becomes thinner at the front and rear sides of the pipe pile to form a slope, and the thinnest part of the slope is flush with the upper side of the bearing tube.

[0014] By adopting the above technical scheme, the center line of the bearing tube in the left-right direction of the present invention is located on the axis of the dam, and serves as the main bearing structure of the dam body. The compartment plates evenly arranged in the bearing tube divide the bearing tube into a combination of several compartments. There are air holes on the cover plate at the top of each compartment, and an air valve and a negative pressure suction pipeline are set. The air pump connected to the negative pressure suction pipeline is set on the shore.

[0015] The compartment plates and bearing tubes can be concrete structures or steel structures. If steel plates are used, there is no need to set up jet pipelines because they are thin. If reinforced concrete plates are used, they are thicker and jet pipelines can be provided at the bottom of the bearing tubes and compartment plates. They can be used as jet trenching and auxiliary sinking equipment. During the entire pile sinking process, high-pressure water can be sprayed downward through the jet holes on the jet pipelines to cut the soil and accelerate sinking.

[0016] Anti-collision cylinders are arranged on the bottom of the cover plate in front and rear of the bearing cylinder, which are also rectangular cylinder structures with an open bottom. The height of the cylinder wall is less than the height of the cylinder wall of the bearing cylinder (core cylinder). Several partition reinforcement plates are evenly arranged vertically and horizontally inside the bearing cylinder. The height of the partition reinforcement plates is consistent with that of the anti-collision cylinder wall. The distribution density of the partition reinforcement plates may be slightly greater than the distribution density of the compartment plates of the bearing cylinder.

[0017] The wall of the bearing tube extends upwards to a certain height beyond the cover plate, and the entire upper area of ​​the cover plate can be poured with secondary concrete or riprap ballasted.

[0018] The concrete reinforcement structure is arranged on the axis of the pile dam. The bottom of the concrete reinforcement structure is connected to the upper surface of the cover plate by casting, and the inside of the concrete reinforcement structure is connected to the lower end of the pipe pile by casting. After the pipe pile is fixedly connected to the cover plate, the concrete reinforcement structure is cast later. Rivets are pre-embedded in the casting area of ​​the cover plate to increase the casting strength, further increasing the connection strength between the cover plate and the upper pipe pile.

[0019] The pipe piles are hollow concrete prefabricated pipes, and the bottoms of the pipe piles are evenly arranged on the axis of the length direction of the cover plate. A through hole is opened on the cover plate to connect with the inside of the pipe piles. The negative pressure suction pipeline passes through the through hole and is connected to the inside of the cabin, and is led out from the center of the pipe pile to the top surface of the pipe pile and connected to the shore air pump.

[0020] A connecting and fixing structure is set on the left and right sides of the cover plate. The connecting and fixing structure consists of a pile guide pipe and a fixed single pile. The pile guide pipe is located on the left and right sides of the cover plate, penetrates the cover plate, and extends to a certain height at the top. The fixed single pile passes through the pile guide pipe and is driven into the soil to further fix the entire suction pile dam unit in the installation position.

[0021] The construction method of the present invention is carried out according to the following steps:

[0022] (1) Welding a cylindrical structure with an open lower end on the shore or in a steel structure processing plant. The cylindrical structure includes a cover plate, a bearing tube, an anti-scouring tube, a compartment plate, a partition fixing plate and a pile guide pipe, and welding rivets on the upper surface area of ​​the cover plate at the bottom of the concrete reinforcement structure;

[0023] (2) Prefabricate the concrete piles on the shore or at the concrete pile prefabrication site, and reserve a steel bar connector at one end of the piles;

[0024] (3) Transport the cylindrical structure and pipe piles to the construction site, support the formwork of the concrete reinforcement structure area, and evenly space the pipe piles in the left and right directions on the cover plate of the cylindrical structure. One end of the reserved steel bar connector is welded downward to the cover plate. Negative pressure suction pipelines are arranged inside the cover plate and prefabricated pipe piles. Then, the concrete reinforcement structure is poured, and the entire suction pile dam unit is manufactured.

[0025] (4) The suction pile dam unit is hoisted to the water surface near the shore to check the air tightness. The lower port of the bearing tube is closed by the water surface. The negative pressure suction pipeline is connected to the air pump. The air pump is started to pump air into several compartments inside the bearing tube to generate air buoyancy so that the entire suction pile dam unit floats on the water surface, meeting the air tightness test requirements;

[0026] (5) The suction pile dam unit is towed to the designated installation location by an anchor rope or tugboat installed on the shore, and the air valve on the negative pressure suction pipeline is opened to release air, so that the suction pile dam unit slowly sinks and falls to a certain depth of the riverbed by its own weight;

[0027] (6) The negative pressure suction pipeline is connected to a vacuum pump, and the vacuum pump is used to evacuate the cabin, so that a pressure difference is formed between the inside and outside of the cabin. The pressure difference causes the entire suction pile dam unit to slowly sink into the mud surface of the riverbed until the cover plate contacts the mud surface;

[0028] (7) After sinking, use the positioning pile to drive into the pile guide pipes on the left and right sides of the cover plate, and sink the lower end of the positioning pile into the soil layer at the bottom of the riverbed to further fix the entire suction pile dam unit. Then, remove the negative pressure suction pipeline inside the prefabricated pipe pile to complete the installation of a suction pile dam unit;

[0029] (8) Repeat steps (1) to (7) to complete the installation of all suction pile dam units in the left and right directions to form a combined pile dam overall structure;

[0030] (9) When it is necessary to move or dismantle the overall structure of the combined pile dam, first connect the negative pressure suction pipeline inside the suction pile dam unit, remove the positioning single piles on the left and right sides by using the pile pulling equipment, and then pump high-pressure water into the negative pressure suction pipeline. The high-pressure water is sprayed downward through the cabin, slowly pushing the lower part of the cylindrical structure out of the riverbed, and then pump air into the negative pressure suction pipeline to form air buoyancy in the cabin, so that the cylindrical structure slowly floats to the water surface, and the suction pile dam unit is moved to another location by cable or tugboat, thereby completing the movement or removal of one suction pile dam unit. Repeat this step until the movement or removal of other suction pile dam units is completed.

[0031] In summary, the present invention combines the advantages of the suction foundation that can be floated and towed as a whole, installed by suction sinking (without piling), adaptable to soft clay foundations, and having a certain anti-scouring ability, as well as the characteristics of the permeable pipe pile construction that has a simple structure, strong diversion ability, and water-permeable siltation, to design a new type of river rescue suction combined pile-dam structure. The structure has the advantages of a suction foundation, a gravity foundation, a floating foundation, and a permeable pile dam, has a wide geological applicability range, can be prefabricated as a whole on land, floated as a whole in the river, installed by suction, assembled in modules, and can be disassembled and reused, thereby greatly reducing the construction costs of construction, installation, and demolition. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a structural schematic diagram of a suction pile dam unit in the present invention;

[0033] Figure 2 yes Figure 1 A side view schematic diagram of the structure;

[0034] Figure 3 yes Figure 1 Schematic diagram of the top view structure. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] like Figure 1-Figure 3 As shown, a river rescue suction type composite pile dam structure of the present invention comprises a series of suction type pile dam units with the same structure; a plurality of suction type pile dam units are assembled and connected on the river bottom according to the dam axis to form a complete set of suction type composite pile dam;

[0037] Each suction pile dam unit includes a negative pressure suction pipeline 1 and a cover plate 2 which is rectangular and horizontally arranged as a whole. The left-right direction of the cover plate 2 is the length direction. A plurality of pipe piles 3 are vertically arranged on the top surface of the cover plate 2. All the pipe piles 3 are arranged at intervals along the center line of the length direction of the cover plate 2. A bearing tube 4 with an open bottom is arranged in the middle of the bottom surface of the cover plate 2 along the length direction. The negative pressure suction pipeline 1 extends downward along the inside of the pipe pile 3 and passes through the cover plate 2 to communicate with the inside of the bearing tube 4.

[0038] A concrete reinforcement structure 5 is cast on the upper surface of the cover plate 2 at the front and rear sides of the lower end of the pipe pile 3 , and a rivet 6 pre-buried in the concrete reinforcement structure 5 is fixedly connected to the upper surface of the cover plate 2 .

[0039] The lower surface of the cover plate 2 is provided with a shockproof tube 7 located at the front and rear sides of the bearing tube 4. The bottom of the shockproof tube 7 is open. The length of the shockproof tube 7 itself is smaller than the length of the bearing tube 4 itself. A plurality of criss-crossing partition reinforcement plates are provided inside the shockproof tube 7.

[0040] A plurality of criss-cross partition plates 8 are provided inside the support tube 4, which divide the internal space of the support tube 4 into a plurality of cabins with open bottoms. The tops of the two corresponding cabins at the front and rear are connected to the lower port of a negative pressure suction pipeline 1 in a pipe pile 3, and an air valve 12 is provided at the lower port of the negative pressure suction pipeline 1.

[0041] A pile guide pipe 9 which is transparent from top to bottom is provided on the cover plate 2 on the left side of the leftmost pipe pile 3 and on the right side of the rightmost pipe pile 3. The pile guide pipe 9 is a trumpet-mouth structure which is thick at the top and thin at the bottom. A fixed single pile 10 is arranged in the pile guide pipe 9, and the lower end of the fixed single pile 10 extends into the interior of the riverbed soil.

[0042] When the bearing tube 4 and the compartment plate 8 are reinforced concrete structures, a jet pipeline is provided at the bottom of the bearing tube 4 and the compartment plate 8, and a high-pressure jet hole for spraying downward is opened on the jet pipeline.

[0043] The upper side of the bearing tube 4 extends upward and protrudes from the upper surface of the cover plate 2 to serve as a retaining edge 11 of the concrete reinforcement structure 5 during pouring. The upper surface of the concrete reinforcement structure 5 gradually becomes thinner at the front and rear sides of the pipe pile 3 to form a slope, and the thinnest part of the slope is flush with the upper side of the bearing tube 4.

[0044] The center line of the support tube 4 in the present invention along the left-right direction is located on the axis of the dam. As the main support structure of the dam body, the compartment plates 8 evenly arranged in the support tube 4 divide the support tube 4 into a combination of several compartments. There are air holes on the cover plate 2 at the top of each compartment, and an air valve 12 and a negative pressure suction pipeline 1 are set. The air pump connected to the negative pressure suction pipeline 1 is set on the shore.

[0045] The compartment plate 8 and the bearing tube 4 can be concrete structures or steel structures. If steel plates are used, there is no need to set up jet pipelines because they are thin. If reinforced concrete plates are used, they are thicker, and jet pipelines can be provided at the bottom of the bearing tube 4 and the compartment plate 8, which can be used as jet ditching and auxiliary sinking equipment. During the entire pile sinking process, high-pressure water can be sprayed downward through the jet holes on the jet pipeline to cut the soil and accelerate sinking.

[0046] The bottom surface of the cover plate 2 is provided with a shockproof cylinder 7 at the front and rear sides of the bearing cylinder 4, which is also a rectangular cylinder structure with an open bottom. The height of the cylinder wall is less than the height of the cylinder wall of the bearing cylinder 4 (core cylinder). A plurality of partition reinforcement plates are evenly arranged vertically and horizontally inside the bearing cylinder 4. The height of the partition reinforcement plates is consistent with that of the wall of the shockproof cylinder 7. The distribution density of the partition reinforcement plates may be slightly greater than the distribution density of the compartment plates 8 of the bearing cylinder 4.

[0047] The wall of the bearing tube 4 extends upwards to a certain height beyond the cover plate 2, and the upper area of ​​the entire cover plate 2 can be poured with secondary concrete or riprap ballasted.

[0048] The concrete reinforcement structure 5 is arranged on the axis of the pile dam, the bottom of the concrete reinforcement structure 5 is connected to the upper surface of the cover plate 2 by casting, and the inside of the concrete reinforcement structure 5 is connected to the lower end of the pipe pile 3 by casting. After the pipe pile 3 is fixedly connected to the cover plate 2, the concrete reinforcement structure 5 is cast to form a concrete reinforcement structure 5, wherein rivets 6 are pre-embedded in the casting area of ​​the cover plate 2 to increase the casting strength, further increasing the connection strength between the cover plate 2 and the upper pipe pile 3.

[0049] The pipe pile 3 is a hollow concrete prefabricated pipe, and the bottom of the pipe pile 3 is evenly arranged on the axis of the length direction of the cover plate 2. A through hole is opened on the cover plate 2 to connect with the inside of the pipe pile 3. The negative pressure suction pipeline 1 passes through the through hole and is connected to the interior of the cabin, and is led out from the center position of the pipe pile 3 to the top surface of the pipe pile 3, and is connected to the shore air pump.

[0050] A connecting and fixing structure is arranged on the left and right sides of the cover plate 2, and the connecting and fixing structure is composed of a pile guide pipe 9 and a fixed single pile 10. The pile guide pipe 9 is located on the left and right sides of the cover plate 2, penetrates the cover plate 2, and extends a certain height from the upper part. The fixed single pile 10 passes through the pile guide pipe 9 and is driven into the soil, and the entire suction pile dam unit is further fixed in the installation position.

[0051] The construction method of the present invention is carried out according to the following steps:

[0052] (1) A cylindrical structure with an open lower end is welded on the shore or in a steel structure processing plant. The cylindrical structure includes a cover plate 2, a bearing tube 4, an anti-collision tube 7, a compartment plate 8, a partition fixing plate and a pile guide tube 9. Rivets 6 are welded in the upper surface area of ​​the cover plate 2 at the bottom of the concrete reinforcement structure 5;

[0053] (2) Prefabricate the concrete pipe pile 3 on the shore or at a prefabrication site, and reserve a steel bar connector at one end of the pipe pile 3;

[0054] (3) The cylindrical structure and the pipe piles 3 are transported to the construction site, and the formwork of the concrete reinforcement structure 5 area is carried out. The pipe piles 3 are evenly spaced and positioned and installed on the cover plate 2 of the cylindrical structure in the left-right direction. One end of the reserved steel bar connector is welded downward to the cover plate 2. A negative pressure suction pipeline 1 is arranged inside the cover plate 2 and the prefabricated pipe piles 3. Then, the concrete pouring of the concrete reinforcement structure 5 is completed, and the production of the entire suction pile dam unit is completed;

[0055] (4) The suction pile dam unit is hoisted to the water surface near the shore to check the air tightness. The lower end of the bearing tube 4 is closed by the water surface. The negative pressure suction pipeline 1 is connected to the air pump. The air pump is started to pump air into the several compartments inside the bearing tube 4 to generate air buoyancy so that the entire suction pile dam unit floats on the water surface, meeting the air tightness test requirements;

[0056] (5) The entire suction pile dam unit is towed to the designated installation location by means of an anchor rope or tugboat installed on the shore, and the air valve 12 on the negative pressure suction pipeline 1 is opened to release air, so that the suction pile dam unit slowly sinks and falls to a certain depth of the riverbed by its own weight;

[0057] (6) The negative pressure suction pipeline 1 is connected to a vacuum pump, and the vacuum pump is used to evacuate the cabin, so that a pressure difference is formed between the inside and outside of the cabin. The pressure difference causes the entire suction pile dam unit to slowly sink into the mud surface of the riverbed until the cover plate 2 contacts the mud surface;

[0058] (7) After sinking, use the positioning pile to drive into the pile guide pipes 9 on the left and right sides of the cover plate 2, and sink the lower end of the positioning pile into the soil layer at the bottom of the riverbed to further fix the entire suction pile dam unit. Then, remove the negative pressure suction pipeline 1 inside the prefabricated pipe pile 3 to complete the installation of a suction pile dam unit;

[0059] (8) Repeat steps (1) to (7) to complete the installation of all suction pile dam units in the left and right directions to form a combined pile dam overall structure;

[0060] (9) When it is necessary to move or dismantle the overall structure of the combined pile dam, first connect the negative pressure suction pipe 1 inside the suction pile dam unit, remove the positioning single piles on the left and right sides by using the pile pulling equipment, and then pump high-pressure water into the negative pressure suction pipe 1. The high-pressure water is sprayed downward through the cabin to slowly push the lower part of the cylindrical structure out of the riverbed. Then, air is pumped into the negative pressure suction pipe 1 to form air buoyancy in the cabin, causing the cylindrical structure to slowly float to the water surface. The suction pile dam unit is moved to another location by using a cable or tugboat, thereby completing the movement or removal of one suction pile dam unit. Repeat this step until the movement or removal of other suction pile dam units is completed.

[0061] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A river rescue suction type combined pile dam structure, characterized by: It includes a series of suction pile dam units with the same structure; multiple suction pile dam units are assembled and connected on the river bottom according to the dam axis to form a complete set of suction combined pile dam; Each suction pile dam unit includes a negative pressure suction pipeline and a cover plate that is rectangular and horizontally arranged as a whole. The left and right directions of the cover plate are the length direction. A plurality of pipe piles are vertically arranged on the top surface of the cover plate. All the pipe piles are arranged at intervals along the center line of the length direction of the cover plate. A bearing cylinder with an open bottom is arranged in the middle of the bottom surface of the cover plate along the length direction. The negative pressure suction pipeline extends downward along the inside of the pipe pile and passes through the cover plate to communicate with the inside of the bearing cylinder. A concrete reinforcement structure is cast on the upper surface of the cover plate at the front and rear sides of the lower end of the pipe pile, and the upper surface of the cover plate is fixedly connected with rivets pre-buried in the concrete reinforcement structure; The lower surface of the cover plate is provided with a shockproof cylinder located at the front and rear sides of the bearing cylinder, the bottom of the shockproof cylinder is open, the length of the shockproof cylinder itself is shorter than the length of the bearing cylinder itself, and a plurality of crisscrossing partition reinforcement plates are provided inside the shockproof cylinder; The upper side of the bearing tube extends upward and protrudes from the upper surface of the cover plate to serve as a retaining edge for the concrete reinforcement structure during pouring. The upper surface of the concrete reinforcement structure gradually becomes thinner at the front and rear sides of the pipe pile to form a slope, and the thinnest part of the slope is flush with the upper side of the bearing tube.

2. A river rescue suction type combined pile dam structure according to claim 1, characterized in that: A number of criss-cross partition plates are arranged inside the bearing tube, which divide the internal space of the bearing tube into a number of cabins with open bottoms. The tops of the two corresponding cabins at the front and rear are connected to the lower port of a negative pressure suction pipeline in a pipe pile, and an air valve is provided at the lower port of the negative pressure suction pipeline.

3. A river rescue suction type combined pile dam structure according to claim 2, characterized in that: A top-to-bottom transparent pile guide pipe is provided on the cover plate on the left side of the leftmost pipe pile and on the right side of the rightmost pipe pile. The pile guide pipe is a trumpet-mouth structure that is thick at the top and thin at the bottom. A fixed single pile is arranged in the pile guide pipe, and the lower end of the fixed single pile extends into the riverbed soil.

4. A river rescue suction type combined pile dam structure according to claim 3, characterized in that: When the bearing tube and the compartment plate are reinforced concrete structures, a jet pipeline is arranged at the bottom of the bearing tube and the compartment plate, and a high-pressure jet hole for spraying downward is opened on the jet pipeline.

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