River impact-resistant dam structure and construction method

Abstract

The application discloses a river anti-impact dam structure and a construction method, which comprises a dam main body and a dam energy dissipation body. The dam main body comprises an anchoring piece and a ramp guard plate. The ramp guard plate is installed on the slope surface through the anchoring piece. The dam energy dissipation body is installed between the ramp guard plates and is provided with an energy dissipation part exposed outside the ramp guard plate on the surface. The energy dissipation part is used for absorbing the water flow impact and elastically deforming. The dam energy dissipation body is provided with a cavity inside. An extrusion plate is slidably arranged in the cavity. An air bag body is arranged between the extrusion plate and the inner wall of the cavity. The inside of the air bag body is communicated with the inside of the energy dissipation part. The assembly type structure can greatly improve the construction efficiency and control quality, facilitate the construction and the later river maintenance operation. The ramp guard plate is fixedly installed on the slope surface through the anchoring piece. The water flow impact is absorbed through the energy dissipation part of the dam energy dissipation body. The elastic deformation makes the air bag body act on the extrusion plate. The backflow energy dissipation part in the ramp guard plate can reversely dissipate the energy of the high-pressure water flow.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of river channel construction, and particularly relates to a river channel impact-resistant dam structure and a construction method. BACKGROUND

[0002] Bank protection refers to the concave bank of a river section where a bridge is located, which is subjected to water flow erosion year by year, and will cause the bank to collapse continuously. In order to protect the safety of the bridge and the embankment, protective structures must be built on the concave bank. Such structures are commonly known as revetments. The forms of revetment include direct protection and indirect protection. Direct protection is to directly reinforce the river bank slope to resist the erosion and scouring of water flow.

[0003] The existing river channel bank protection structure is a backwash structure, for example, CN202410190708.1, which uses water flow at the bottom to discharge from the top to reduce the kinetic energy of water flow impact. Although the setting of the filter assembly can achieve the filtering effect, it reduces the internal water flow kinetic energy. Therefore, the effect of reducing the kinetic energy of water flow impact by using backwash of this type is not ideal. The cleaning assembly used needs personnel to manually clean and process the filter assembly, which is complex to operate and requires professional personnel to be equipped for the river channel, resulting in high maintenance costs. SUMMARY

[0004] 1) Technical problem

[0005] 1. How to solve the poor effect of reducing the kinetic energy of water flow impact of the existing bank protection structure.

[0006] 2. How to solve the problem of filter blockage and self-cleaning when backwash water is introduced.

[0007] 3. How to solve the problems of poor paving efficiency of the bank protection structure and sealing and anti-leakage of butt joint assembly.

[0008] 2) Technical solution

[0009] To solve the above problems, the inventor puts forward the following technical solution:

[0010] A river channel impact-resistant dam structure, comprising:

[0011] A dam body, the dam body comprising an anchor and a slope guard plate, the slope guard plate being installed on the slope surface through the anchor;

[0012] A dam energy dissipation body, the dam energy dissipation body being installed between the slope guard plates and having an energy dissipation part exposed outside the slope guard plates on the surface, the energy dissipation part being used for absorbing water flow impact and generating elastic deformation, the dam energy dissipation body having a cavity in the inside, a pressing plate being slidably fitted in the cavity, an air bag body being installed between the pressing plate and the inner wall of the cavity, and the inside of the air bag body being in communication with the inside of the energy dissipation part;

[0013] The side of the ramp guard plate is provided with a groove, which is used for installing an energy dissipation part, and a connecting hole is arranged at the groove, a high-strength corrosion-resistant bolt is installed in the connecting hole, the high-strength corrosion-resistant bolt penetrates a pressing strip, and the energy dissipation part is fixedly installed through the pressing strip, the inside of the ramp guard plate is provided with a backflushing energy dissipation part, and the backflushing energy dissipation part is backflushed against the water flow for reverse energy dissipation while the energy dissipation part is elastically deformed.

[0014] The ramp guard plate, the dam energy dissipation part and the energy dissipation part are all produced by a factory and purchased in a centralized manner.

[0015] Preferably, the backflushing energy dissipation part comprises an outer water inlet hole, an inner water inlet hole and an inner backflushing hole, the size of the inner water inlet hole is greater than or equal to the size of the outer water inlet hole, the size of the inner backflushing hole is smaller than the size of the outer water inlet hole, the inner backflushing hole and the outer water inlet hole are in position correspondence when the air bag body is completely elastically deformed, the inner water inlet hole and the outer water inlet hole are in position correspondence when the air bag body is not elastically deformed, and the diameter of the inner backflushing hole on the side away from the outer water inlet hole is greater than the side close to the outer water inlet hole.

[0016] The inside of the ramp guard plate is provided with a movable cavity, a sliding frame is slidingly and sealingly installed in the movable cavity, the inner water inlet hole and the inner backflushing hole are arranged on the sliding frame, and the inner water inlet hole is located on the side of the inner backflushing hole away from the energy dissipation part.

[0017] The ramp guard plate is provided with the outer water inlet hole.

[0018] The ramp guard plate is provided with a connecting hole, a connecting column is slidingly matched in the connecting hole, and the extrusion plate is connected and fixed to the sliding frame through the connecting column.

[0019] Preferably, the inside of the movable cavity is provided with a reserved air cavity.

[0020] A return spring is further installed in the cavity, the return spring is located on the side of the extrusion plate installation connecting column and is sleeved on the outside of the connecting column.

[0021] Preferably, the ramp guard plate is provided with a buffer strip one and a buffer strip two in an up-down arrangement, the buffer strip one and the buffer strip two are both provided with two, and the outer water inlet hole is located between the corresponding buffer strip one and buffer strip two.

[0022] The buffer strip one is fixedly installed on the ramp guard plate, and the buffer strip two is slidingly installed on the ramp guard plate.

[0023] The two buffer strip ones are located on the two sides of the two buffer strip twos, and the two buffer strip twos are located on the two sides of the energy dissipation part.

[0024] The buffer strip one and the buffer strip two are both provided with a buffer hole.

[0025] Preferably, the top of the energy dissipation part is provided with a pressure plate, both sides of the pressure plate are rotatably provided with a driving rotating rod, and the free end of the driving rotating rod is rotatably provided on the corresponding buffer strip two;

[0026] The side of the buffer strip two away from the energy dissipation part is provided with a connecting piece one, the connecting piece one is provided with a filter screen plate for covering the outer water inlet hole, the side of the buffer strip one opposite to the energy dissipation part is provided with a connecting piece two, and the connecting piece two is provided with a cleaning plate for cleaning the surface of the filter screen plate.

[0027] Preferably, the end of the ramp guard plate is provided with a butt joint assembly, and the butt joint assembly comprises an L-shaped butt joint plate and a U-shaped cover;

[0028] The L-shaped butt joint plate comprises a connecting plate and a sealing plate, the connecting plate is fixedly installed at the end of the ramp guard plate in the width direction, the sealing plate is perpendicularly installed at the end of the connecting plate away from the ramp guard plate, and a sealing piece is installed on the side of the sealing plate away from the connecting plate;

[0029] The U-shaped cover is sleeved outside the two sealing plates corresponding to the positions of the two adjacent ramp guard plates, the U-shaped cover is slidably provided with an extrusion block and an adjusting piece installed on the U-shaped cover, the adjusting piece is used for adjusting the distance between the extrusion block and the root of the U-shaped cover, and the extrusion block is used for acting on the side of the sealing plate away from the sealing piece.

[0030] Preferably, the outer side of the U-shaped cover is provided with a sealing strip, and the end of the ramp guard plate is provided with a long slot, and the long slot and the sealing strip are sealingly matched.

[0031] Preferably, the side of the extrusion block away from the connecting plate is a wedge-shaped surface and gradually decreases in thickness, and the side of the sealing plate away from the connecting plate is a wedge-shaped surface and gradually decreases in thickness.

[0032] Preferably, the U-shaped cover is uniformly provided with a through hole, the energy dissipation part is provided with a connector body, and the connector body and the air bag body are socketedly installed to communicate the inside of the air bag body with the inside of the energy dissipation part.

[0033] The two sealing plates in the U-shaped cover are provided with arc-shaped grooves on the opposite sides, and the arc-shaped grooves are sealingly installed on the outside of the connector body.

[0034] A construction method of a river channel impact-resistant dam structure, the steps are as follows:

[0035] Step 1, river channel excavation and slope

[0036] According to the design drawing requirements, the river channel is excavated and the river channel is designed to be put on the slope, and the slope is obtained. The geotextile is laid on the slope, and the steel mesh is laid on the surface of the geotextile. The anchor is fixed at the anchor point, and the anchor is provided with a pre-buried box. The pre-buried box is protected and treated, and the concrete cushion is sprayed on the surface of the steel mesh. The end of the anchor is exposed to the design requirements in the pre-buried box and is not contaminated by the sprayed concrete, so as to pave the slope guard plate.

[0037] Step 2, installation of the dam energy dissipation body

[0038] The line is drawn on the concrete cushion, and the position boundary of the dam energy dissipation body is drawn, and is connected and fixed by double-sided adhesive;

[0039] Step 3, installation of the slope guard plate

[0040] The connecting box is installed on the back of the slope guard plate, the connecting box and the pre-buried box are positionally corresponding, the connecting box is provided with a through hole and a hooking groove communicated with the through hole, and the end of the anchor is provided with a hooking plate for penetrating the through hole into the connecting box;

[0041] The through hole and the hooking plate are positionally corresponding and vertically enter the connecting box, the rabbet and the dam energy dissipation body are positionally corresponding, the U-shaped cover is installed on the outer side of the L-shaped butt joint plate positionally corresponding on the adjacent two slope guard plates, and the joint body is communicated with the air bag body in advance;

[0042] The anchor is adjusted by the adjusting member to make the sealing plates close to each other until the sealing sheets are in a compressed state, and the joint body and the arc-shaped groove are in a sealed state;

[0043] The two ends of the energy dissipation part are provided with ear strip plates, and the ear strip plates are fixed on the slope guard plate by pressing strips and corrosion-resistant high-strength bolts;

[0044] Step 4, in step 3, the adjusting member adjusts the extrusion block, and at the same time, the two L-shaped butt joint plates are close to each other, the hooking plate is in the connecting box, and the end of the anchor enters the hooking groove to form a hooking structure;

[0045] Step 5, in step 3, the outer water inlet hole and the inner water inlet hole are positionally corresponding, and the insertion strip is inserted into the two holes, the energy dissipation part is extruded, the connecting column is inserted into the sliding frame and forms fixed connection, the energy dissipation part is provided with a gas charging and discharging nozzle, the energy dissipation part is pre-charged with gas of a set pressure by using the gas charging and discharging nozzle, and the two ends of the driving rotating rod are connected with the buffer strip two and the pressure plate through the rotating shaft;

[0046] When the river flow hits the slope guard plate, the energy dissipation part and the pressure plate are elastically deformed after being impacted, so that the internal gas enters the air bag body and pushes the extrusion plate to compress the reset spring, and the sliding frame moves in the movable cavity inside the slope guard plate, so that the inner water inlet hole and the outer water inlet hole are staggered, and after the stagger, the reserved air cavity inside the movable cavity is compressed as the sliding frame continues to move, and when the inner backflush hole and the outer water inlet hole are in position, the internal water is high-pressure outflashed from the inner backflush hole to offset the water flow impact, wherein when the energy dissipation part is elastically deformed, the filter screen plate and the buffer strip two are removed from the outer water inlet hole under the action of the driving rotating rod, and when the inner backflush hole and the outer water inlet hole are in position, the filter screen plate is in a completely removed state, and a cleaning operation is completed by the cleaning plate.

[0047] When the river flow recedes, the energy dissipation part elastically resets at the first time, and the sliding frame and the extrusion plate reset together under the joint action of the reset spring and the elastic reset of the energy dissipation part, the inner water inlet hole and the outer water inlet hole are in position again, and the buffer strip two drives the filter screen plate cover to be arranged outside the outer water inlet hole, and the receding water flow is sucked into the movable cavity.

[0048] Advantages

[0049] 1. Compared with the prior art, the assembly type structure can greatly improve the construction efficiency and control quality, facilitate construction and post-maintenance operation of the river channel, the slope guard plate is fixedly installed on the slope surface through the anchor, the energy dissipation part of the dam energy dissipation body absorbs the water flow impact, elastically deforms, and the air bag body acts on the extrusion plate, so that the backflush energy dissipation part in the slope guard plate can be reversely energy dissipated to the high-pressure water flow.

[0050] 2. Compared with the prior art, the slope guard plate with the built-in sliding frame is used, the extrusion plate and the sliding frame are acted on by the air bag body, the outer water inlet hole and the inner water inlet hole or the inner backflush hole are selectively corresponding, water absorption and counter energy dissipation are realized, and the high-pressure counter energy dissipation operation is realized by using the size of the outer water inlet hole, the inner water inlet hole and the inner backflush hole.

[0051] 3. Compared with the prior art, two groups of buffer strips are arranged on the slope guard plate and are fixed and sliding respectively, the sliding buffer strip is connected to the energy dissipation part through the driving rotating rod, which is beneficial to synchronous movement when the energy dissipation part is elastically deformed, so that the filter screen plate on the sliding buffer strip selectively covers or separates from the outer water inlet hole, when the filter screen plate covers the outer water inlet hole, the outer water inlet hole and the inner water inlet hole are in position to prevent the outer water inlet hole from being blocked and debris from entering the movable cavity to affect the compression of the internal gas to form a high-pressure atmosphere, and when the filter screen plate separates from the outer water inlet hole, the cleaning plate on the fixed buffer strip can realize automatic cleaning of the filter screen plate.

[0052] 4. The application has the advantages that, compared with the prior art, the butt joint assembly is installed between the slope protection plates, the U-shaped cover can butt joint the sealing plates, the sealing plates are compressed to form a sealing structure, the sealing strip and the long groove are sealed to form a sealing structure during the butt joint, the spliced part can be prevented from seepage, the problem of the base soil collapse is avoided, and the durability of the river channel slope protection is ensured; meanwhile, the hooking plate at the end of the anchor is hooked into the hooking groove to form a hooking structure during the butt joint, the slope protection plate can be fixed on the concrete cushion, and the structural stability is improved. BRIEF DESCRIPTION OF DRAWINGS

[0053] Figure 1 It is a schematic diagram of the overall structure of the application.

[0054] Figure 2 It is a schematic diagram of the overall structure of the application. Figure 1 It is a partial enlarged view of A in the figure.

[0055] Figure 3 It is a schematic diagram of the overall structure of the application. Figure 2 It is a partial enlarged view of B in the figure.

[0056] Figure 4 It is a schematic diagram of the overall structure of the application.

[0057] Figure 5 It is an end view of the slope protection plate.

[0058] Figure 6 It is a partial enlarged view of C in the figure. Figure 1

[0059] It is a schematic diagram of the overall structure of the application. Figure 7 Figure 1 It is a plan view of the buffer strip, the filter screen plate and the cleaning plate on the slope protection plate.

[0060] Figure 8 It is a schematic diagram of the overall structure of the application. Figure 7 It is a position distribution diagram of the outer water inlet hole on the surface of the slope protection plate.

[0061] Figure 9 It is a partial enlarged view of D in the figure. Figure 1

[0062] It is a schematic diagram of the overall structure of the application. Figure 10 Figure 9 It is a bottom plan view of the connecting box.

[0063] In the figure:

[0064] ​​10. Dam protection body; 11. Anchor; 111. Embedded box; 112. Connecting box; 1121. Through hole; 1122. Hooking slot; 113. Hooking plate; 12. Ramp guard plate; 121. Recoil energy dissipation component; 1211. External water inlet hole; 1212. Internal water inlet hole; 1213. Internal recoil hole; 1214. Movable cavity; 1215. Sliding frame; 1216. Return spring; 1217. Buffer bar 1; 1218. Buffer bar 2; 1219. Driving rotation rod; 1220. Filter plate; 1221. Cleaning plate; 13. L-shaped docking plate; 131. Connecting plate; 132. Sealing plate; 133. Sealing sheet; 134. Extrusion block; 135. Adjusting member; 136. Sealing strip; 137. Long slot; 138. Connector body; 14. U-shaped cover;

[0065] 20. Dam protection energy dissipation body; 21. Energy dissipation part; 211. Ear plate; 212. Pressure plate; 22. Extrusion plate; 23. Airbag body; 24. Pressure strip. DETAILED DESCRIPTION

[0066] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0067] Example 1

[0068] like Figures 1-2 As shown, a river channel anti-impact dam protection structure includes a dam protection body 10 and a dam protection energy dissipation body 20.

[0069] The dam protection body 10 includes an anchor 11 and a slope guard plate 12 . The slope guard plate 12 is installed on the slope surface through the anchor 11 .

[0070] The dam protection energy dissipation body 20 is installed between the slope guard plates 12 and is provided with an energy dissipation part 21 exposed on the outside of the slope guard plates 12 on its surface. The energy dissipation part 21 is used to absorb the impact of water flow and produce elastic deformation. A chamber is provided inside the dam protection energy dissipation body 20, and an extrusion plate 22 is slidably fitted in the chamber. An air bag body 23 is installed between the extrusion plate 22 and the inner wall of the chamber, and the interior of the air bag body 23 is connected to the interior of the energy dissipation part 21.

[0071] Among them, the side of the ramp guard plate 12 is provided with a tongue and groove, which is used to install the energy dissipation part 21. A connecting hole is provided at the tongue and a corrosion-resistant high-strength bolt is installed in the connecting hole. The corrosion-resistant high-strength bolt passes through the pressure strip 24 and fixes the energy dissipation part 21 through the pressure strip 24. A recoil energy dissipation part 121 is provided inside the ramp guard plate 12. When the energy dissipation part 21 is elastically deformed, the recoil energy dissipation part 121 is acted upon by the airbag body 23 and the extrusion plate 22 to reversely dissipate energy by counteracting the water flow.

[0072] likeFigure 6 、 8 As shown in the figure, the backflushing energy dissipater 121 comprises an outer water inlet hole 1211, an inner water inlet hole 1212 and an inner backflushing hole 1213, the size of the inner water inlet hole 1212 is greater than or equal to the size of the outer water inlet hole 1211, the size of the inner backflushing hole 1213 is smaller than the size of the outer water inlet hole 1211, when the airbag body 23 is completely elastically deformed, the inner backflushing hole 1213 and the outer water inlet hole 1211 are in position correspondence, when the airbag body 23 is not elastically deformed, the inner water inlet hole 1212 and the outer water inlet hole 1211 are in position correspondence, wherein the hole diameter of the inner backflushing hole 1213 away from the side of the outer water inlet hole 1211 is greater than the side close to the outer water inlet hole 1211.

[0073] The inner part of the ramp guard 12 is provided with a movable cavity 1214, a sliding frame 1215 is slidingly and sealingly installed in the movable cavity 1214, the inner water inlet hole 1212 and the inner backflushing hole 1213 are both arranged on the sliding frame 1215, and the inner water inlet hole 1212 is located on the side of the inner backflushing hole 1213 away from the energy dissipater 21.

[0074] The outer water inlet hole 1211 is arranged on the ramp guard 12.

[0075] The ramp guard 12 is provided with a connecting hole, a connecting column is slidingly fitted in the connecting hole, and the extrusion plate 22 is connected and fixed on the sliding frame 1215 through the connecting column.

[0076] The inner part of the movable cavity 1214 is provided with a reserved air cavity;

[0077] A reset spring 1216 is further installed in the cavity, the reset spring 1216 is used for resetting the extrusion plate 22 and the airbag body 23, and the resetting of the airbag body 23 is caused by the reset spring 1216 and the elastic deformation of the energy dissipater 21. The reset spring 1216 is located on the side of the extrusion plate 22 where the connecting column is installed and is sleeved on the outer side of the connecting column.

[0078] The elastic deformation of the energy dissipater 21 caused by the absorption of water flow impact makes the internal gas enter the airbag body 23 and drive the extrusion plate 22 to move outward, the sliding frame 1215 is driven to slide in the movable cavity 1214 through the connecting column, the outer water inlet hole 1211 selectively corresponds to the inner water inlet hole 1212 or the inner backflushing hole 1213, and the high-pressure backflushing water flow is weakened to reduce the kinetic energy of the water flow impact and the water flow retreats to wait for the next water flow impact.

[0079] Embodiment 2

[0080] On the basis of the above embodiment, in order to solve the problems of blocking the outer water inlet hole 1211 and the debris entering the inner part of the movable cavity 1214 affecting the high-pressure backflushing effect:

[0081] As Figure 1 、 6, 7, 8, the ramp guard plate 12 is arranged with buffer strip one 1217 and buffer strip two 1218, buffer strip one 1217 and buffer strip two 1218 are provided with two, the outer water inlet hole 1211 is located between the corresponding buffer strip one 1217 and buffer strip two 1218.

[0082] Buffer strip one 1217 is fixedly installed on the ramp guard plate 12, and buffer strip two 1218 is slidably installed on the ramp guard plate 12.

[0083] Two buffer strip one 1217 are located on the two sides of two buffer strip two 1218, and two buffer strip two 1218 are located on the two sides of the energy dissipation part 21.

[0084] Buffer strip one 1217 and buffer strip two 1218 are provided with buffer holes.

[0085] The top of the energy dissipation part 21 is provided with a pressure bearing plate 212, both sides of the pressure bearing plate 212 are rotatably provided with a driving rotating rod 1219, and the free end of the driving rotating rod 1219 is rotatably installed on the corresponding buffer strip two 1218.

[0086] The side of the buffer strip two 1218 away from the energy dissipation part 21 is provided with a connecting piece one, the connecting piece one is provided with a filter screen plate 1220 for covering the outer water inlet hole 1211, and the side of the buffer strip one 1217 relative to the energy dissipation part 21 is provided with a connecting piece two, the connecting piece two is provided with a cleaning plate 1221, and the cleaning plate 1221 is used for cleaning the surface of the filter screen plate 1220.

[0087] When the energy dissipation part 21 is elastically deformed under pressure, the buffer strip two 1218 slides along the ramp guard plate 12 under the action of the driving rotating rod 1219, so that the filter screen plate 1220 is separated from the outer water inlet hole 1211, and cooperates with the cleaning plate 1221 to clean the filter screen plate 1220, when the energy dissipation part 21 is elastically reset, the filter screen plate 1220 is reset to cover the water inlet hole, preventing debris from entering and affecting the high-pressure backflushing effect and the problem of blocking the outer water inlet hole.

[0088] Example 3

[0089] On the basis of the above embodiment, in order to solve the problem that the assembled slope protection structure is easy to appear water seepage at the assembly joint, causing the bottom base to collapse:

[0090] As shown in Figure 2 , 3 , 4, 5, 8, the end of the ramp guard plate 12 is provided with a butt joint assembly, the butt joint assembly comprises an L-shaped butt joint plate 13 and a U-shaped cover 14.

[0091] The L-shaped butt joint plate 13 comprises a connecting plate 131 and a sealing plate 132, the connecting plate 131 is fixedly installed at the end of the ramp guard plate 12 along the width direction, and the sealing plate 132 is perpendicularly installed at the end of the connecting plate 131 away from the ramp guard plate 12, and a sealing sheet 133 is installed on the side of the sealing plate 132 away from the connecting plate 131.

[0092] The U-shaped cover 14 is sleeved outside two sealing plates 132 corresponding to the positions of two adjacent ramp guard plates 12, the inside of the U-shaped cover 14 is slidably installed with an extrusion block 134 and an adjusting piece 135 installed on the U-shaped cover 14, the adjusting piece 135 is used for adjusting the distance of the extrusion block 134 from the root of the U-shaped cover 14, and the extrusion block 134 (U-shaped structure) is used for acting on the side of the sealing plate 132 away from the sealing sheet 133. The position of the extrusion block 134 is adjusted by the adjusting piece 135 so that the sealing plate 132 is close to the extrusion sealing sheet 133, the adjusting piece 135 is a combination of an elastic expansion body and a bolt, the extrusion block 134 is downwardly extruded to the sealing plate 132 by using the progression of the bolt, and the elastic expansion body is used for driving the extrusion block 134 to automatically reset.

[0093] The outside of the U-shaped cover 14 is provided with a sealing strip 136, and the end of the ramp guard plate 12 is provided with a long slot 137, and the long slot 137 and the sealing strip 136 are sealingly matched. In the process of approaching each other, the sealing strip 136 and the long slot 137 are sealingly matched, so that the butt joint assembly forms a multi-seal structure, and the anti-seepage performance is ensured.

[0094] The side of the extrusion block 134 relative to the sealing plate 132 is a wedge surface and gradually decreases in thickness along the side close to the connecting plate 131, and the side of the sealing plate 132 relative to the extrusion block 134 is a wedge surface and gradually decreases in thickness along the side away from the connecting plate 131.

[0095] The U-shaped cover 14 is uniformly provided with a through hole, the joint body 138 is arranged on the energy dissipation part 21, and the joint body 138 and the air bag body 23 are socketed and installed for communicating the inside of the air bag body 23 with the inside of the energy dissipation part 21.

[0096] The two sealing plates 132 inside the U-shaped cover 14 are provided with arc-shaped grooves on opposite sides, and the arc-shaped grooves are sealingly installed outside the joint body 138.

[0097] The construction method of the riverway impact-resistant dam structure is as follows:

[0098] Step 1, riverway excavation and slope

[0099] According to the design drawing requirement, the riverway is excavated and designed to be sloped, a slope surface is obtained, geotechnical cloth is laid on the slope surface, steel wire mesh is laid on the surface of the geotechnical cloth, anchor pieces 11 are fixedly anchored at fixed points on the steel wire mesh, and pre-buried boxes 111 are installed on the anchor pieces 11. Figure 1 ,9 As shown, the pre-embedded box 111 is protected by spraying a concrete cushion on the surface of the steel mesh, and the end of the anchor 11 is exposed to the design requirements and is not contaminated by the sprayed concrete, so as to pave the ramp guard plate 12;

[0100] Step 2, the installation of the dam energy dissipator 20

[0101] Mark the position line of the dam energy dissipator 20 on the concrete cushion, and fix it by double-sided tape;

[0102] Step 3, installation of the ramp guard plate 12

[0103] As shown in Figure 1 , 9 , 10, the connecting box 112 is installed on the back of the ramp guard plate 12, the connecting box 112 corresponds to the position of the pre-embedded box 111, the connecting box 112 is provided with a through hole 1121 and a hooking groove 1122 communicated with the through hole 1121, and the end of the anchor 11 is provided with a hooking plate 113, which is used to penetrate the through hole 1121 into the connecting box 112;

[0104] The tongue and groove and the dam energy dissipator 20 correspond in position, the U-shaped cover 14 is installed outside the L-shaped butt joint plate 13 corresponding in position on the adjacent two ramp guard plates 12, and the joint body 138 is first communicated with the air bag body 23;

[0105] The anchor 11 adjusts the sealing plate 132 to approach each other until the sealing sheet 133 is in a compressed state, and the joint body 138 and the arc-shaped groove are in a sealed state;

[0106] The two ends of the energy dissipating part 21 are provided with lug plates 211, which are fixed on the ramp guard plate 12 by the pressing strip 24 and the corrosion-resistant high-strength bolt;

[0107] Step 4, in step 3, the adjusting member 135 adjusts the pressing block 134 at the same time, which will cause the two L-shaped butt joint plates 13 to approach each other, the hooking plate 113 is inside the connecting box 112 and the end of the anchor 11 enters the hooking groove 1122 to form a hooking structure;

[0108] Step 5, in step 3, first, the outer water inlet hole 1211 and the inner water inlet hole 1212 are positionally corresponding and the dowel is inserted in both to prevent displacement, the energy dissipation part 21 is extruded, so that the connecting column is inserted into the sliding frame 1215 and forms a fixed connection, and then the dowel is pulled out, wherein the energy dissipation part 21 is provided with a gas charging and discharging nozzle, the inside of the energy dissipation part 21 is pre-charged with gas of a set required pressure by using the gas charging and discharging nozzle, so as to ensure the moving distance of the sliding frame 1215, so that the gas in the reserved air cavity is compressed, and the water inside is high-pressure flushed out, and the two ends of the driving rotating rod 1219 are connected with the buffer strip two 1218 and the pressure bearing plate 212 through the rotating shaft respectively;

[0109] When the river flow rushes to the slope guard plate 12, the energy dissipation part 21 and the pressure bearing plate 212 are elastically deformed after being impacted, so that the internal gas enters the inside of the air bag body 23 and pushes the extrusion plate 22 to compress the return spring 1216, at the same time, the sliding frame 1215 moves in the movable cavity 1214 inside the slope guard plate 12, so that the inner water inlet hole 1212 and the outer water inlet hole 1211 are misaligned, after misalignment, the air in the reserved air cavity inside the movable cavity 1214 is compressed as the sliding frame 1215 continues to move, and when the inner backflush hole 1213 and the outer water inlet hole 1211 are positionally corresponding, the internal water is high-pressure flushed out through the inner backflush hole 1213 to offset the water flow impact, wherein when the energy dissipation part 21 is elastically deformed, the filter screen plate 1220 is removed from the outer water inlet hole 1211 under the action of the driving rotating rod 1219, and when the inner backflush hole 1213 and the outer water inlet hole 1211 are positionally corresponding, the filter screen plate 1220 is in a completely removed state, and a cleaning operation is completed by the cleaning plate 1221;

[0110] When the river flow recedes, the energy dissipation part 21 is elastically reset at the first time, at the same time, the sliding frame 1215 and the extrusion plate 22 are reset under the combined action of the return spring 1216 and the elastic reset of the energy dissipation part 21, the inner water inlet hole 1212 and the outer water inlet hole 1211 are positionally corresponding again, at the same time, the buffer strip two 1218 drives the filter screen plate 1220 to cover the outside of the outer water inlet hole 1211, and the receding water flow is sucked into the inside of the movable cavity 1214.

[0111] When the slope guard plate 12 is damaged by water flow scouring and corrosion, after the pressure strip 24, the butt joint assembly and the energy dissipation part 21 are removed once, the air bag body 23 is connected to the negative pressure extraction equipment, so that the connecting column and the sliding frame 1215 are separated, the position of the slope guard plate 12 is adjusted along the slope surface, and the slope guard plate 12 is removed and replaced with a new one to repeat the paving steps, and the maintenance work is completed.

[0112] The above merely describes preferred specific embodiments of the present application, but the protection scope of the present application is not limited thereto. The alternatives can be partial structure, device, method step alternatives, or complete technical solutions. According to the technical solutions of the present application and the inventive concept, equivalent replacement or change should be covered within the protection scope of the present application.

Claims

1. A river impact protection dam structure, characterized by, The utility model relates to a kind of slope protection devices, including: The dam body (10) includes anchor (11) and ramp guard plate (12), and the ramp guard plate (12) is installed on the slope surface by anchor (11); The dam energy absorber (20) is installed between the ramp guard plate (12) and the surface is provided with energy absorption part (21) exposed outside the ramp guard plate (12), and the energy absorption part (21) is used to absorb water flow impact and elastically deformed, and the inside of the dam energy absorber (20) is provided with chamber, and the extrusion plate (22) is slidably fitted in the chamber, and the air bag body (23) is installed between the extrusion plate (22) and the inner wall of chamber, and the inside of the air bag body (23) is communicated with the inside of energy absorption part (21); Wherein, the side of the ramp guard plate (12) is provided with rebate, and the rebate is used to install energy absorption part (21), and the connecting hole is provided at the rebate, and the anticorrosive high-strength bolt is installed in the connecting hole, and the anticorrosive high-strength bolt is penetrated by pressing strip (24) and the energy absorption part (21) is fixedly installed by pressing strip (24), and the inside of the ramp guard plate (12) is provided with backflush energy absorber (121), and the backflush energy absorber (121) is backflushed by air bag body (23) and extrusion plate (22) when energy absorption part (21) is elastically deformed, and the water flow is backflushed and energy-absorbed.

2. A river impact protection barrier structure according to claim 1, characterized in that The backflush energy absorber (121) includes outer water inlet hole (1211), inner water inlet hole (1212) and inner backflush hole (1213), the size of the inner water inlet hole (1212) is greater than or equal to the size of the outer water inlet hole (1211), the size of the inner backflush hole (1213) is less than the size of the outer water inlet hole (1211), the inner backflush hole (1213) and the outer water inlet hole (1211) are positionally corresponding when the air bag body (23) is completely elastically deformed, and the inner water inlet hole (1212) and the outer water inlet hole (1211) are positionally corresponding when the air bag body (23) is not elastically deformed, wherein the diameter of the inner backflush hole (1213) away from the side of the outer water inlet hole (1211) is greater than the side close to the outer water inlet hole (1211); The inside of the ramp guard plate (12) is provided with movable cavity (1214), and the sliding frame (1215) is slidably and sealingly installed in the movable cavity (1214), and the inner water inlet hole (1212) and the inner backflush hole (1213) are arranged on the sliding frame (1215), and the inner water inlet hole (1212) is located on the side of the inner backflush hole (1213) away from the energy absorption part (21); The outer water inlet hole (1211) is arranged on the ramp guard plate (12); The connecting hole is arranged on the ramp guard plate (12), the connecting column is slidably fitted in the connecting hole, and the extrusion plate (22) is connected and fixed on the sliding frame (1215) through the connecting column.

3. A river impact protection barrier structure according to claim 2, wherein, The inside of the movable cavity (1214) is provided with a reserved air cavity; The reset spring (1216) is located on the side of the extrusion plate (22) installation connecting column and is sleeved on the outside of the connecting column.

4. A river impact protection barrier structure according to claim 3, wherein The ramp guard plate (12) is provided with a buffer strip one (1217) and a buffer strip two (1218) arranged in sequence, and two buffer strip ones (1217) and two buffer strip twos (1218) are arranged on the ramp guard plate (12); The buffer strip one (1217) is fixedly installed on the ramp guard plate (12), and the buffer strip two (1218) is slidably installed on the ramp guard plate (12); The two buffer strip ones (1217) are located on the two sides of the two buffer strip twos (1218), and the two buffer strip twos (1218) are located on the two sides of the energy dissipation part (21); The buffer strip one (1217) and the buffer strip two (1218) are provided with buffer holes.

5. A river impact protection barrier structure according to claim 4, wherein, The top of the energy dissipation part (21) is provided with a pressure bearing plate (212), and the two sides of the pressure bearing plate (212) are rotatably provided with driving rotating rods (1219), and the free ends of the driving rotating rods (1219) are rotatably installed on the corresponding buffer strip twos (1218); The side of the buffer strip two (1218) away from the energy dissipation part (21) is provided with a connecting piece one, and a filter screen plate (1220) for covering the outer water inlet hole (1211) is installed on the connecting piece one; the side of the buffer strip one (1217) opposite to the energy dissipation part (21) is provided with a connecting piece two, and a cleaning plate (1221) is installed on the connecting piece two, and the cleaning plate (1221) is used for cleaning the surface of the filter screen plate (1220).

6. A river impact protection barrier structure according to claim 5, wherein, The end of the ramp guard plate (12) is provided with a butt joint assembly, and the butt joint assembly comprises an L-shaped butt joint plate (13) and a U-shaped cover (14); The L-shaped butt joint plate (13) comprises a connecting plate (131) and a sealing plate (132), the connecting plate (131) is fixedly installed on the end of the ramp guard plate (12) along the width direction, the sealing plate (132) is perpendicularly installed on the end of the connecting plate (131) away from the ramp guard plate (12), and a sealing piece (133) is installed on the side of the sealing plate (132) away from the connecting plate (131); The U-shaped cover (14) is sleeved outside the two sealing plates (132) corresponding to the positions of the two adjacent ramp guard plates (12), the U-shaped cover (14) is slidably provided with an extrusion block (134) and an adjusting piece (135) installed on the U-shaped cover (14), the adjusting piece (135) is used for adjusting the distance between the extrusion block (134) and the root of the U-shaped cover (14), and the extrusion block (134) is used for acting on the side of the sealing plate (132) away from the sealing piece (133).

7. A river impact protection barrier structure according to claim 6, wherein, The outer side of the U-shaped cover (14) is provided with a sealing strip (136), and the end of the ramp guard plate (12) is provided with a long slot (137), and the long slot (137) and the sealing strip (136) are sealingly matched.

8. A river impact protection barrier structure according to claim 7, wherein, The side of the extrusion block (134) opposite to the sealing plate (132) is a wedge surface and gradually decreases in thickness along the side close to the connecting plate (131), and the side of the sealing plate (132) opposite to the extrusion block (134) is a wedge surface and gradually decreases in thickness along the side away from the connecting plate (131).

9. A river impact protection barrier structure according to claim 8, wherein, The U-shaped cover (14) is uniformly provided with through holes, the joint body (138) is arranged on the energy dissipation part (21), and the joint body (138) and the air bag body (23) are connected in a socket manner to communicate the inside of the air bag body (23) with the inside of the energy dissipation part (21); Two sealing plates (132) located in the U-shaped cover (14) are provided with arc-shaped grooves on opposite sides, and the arc-shaped grooves are sealingly arranged on the outside of the joint body (138).

10. A method of constructing a river impact protection dike structure according to claim 9, characterized by, The steps are as follows: Step 1, river channel excavation and slope laying According to the design drawing, the river channel is excavated and designed to lay a slope, and the slope surface is obtained. The geotextile is laid on the slope surface, and the steel mesh is laid on the surface of the geotextile. The anchor (11) is fixed on the steel mesh at a fixed point. The pre-buried box (111) is arranged on the anchor (11), and the pre-buried box (111) is protected. The concrete cushion layer is sprayed on the surface of the steel mesh, and the end of the anchor (11) is exposed to the design requirement size in the pre-buried box (111) and is not contaminated by the sprayed concrete, so as to lay the slope guard plate (12); Step 2, installation of dam energy dissipation body (20) The position line of the dam energy dissipation body (20) is drawn on the concrete cushion layer, and is connected and fixed by double-sided adhesive tape; Step 3, installation of slope guard plate (12) The connecting box (112) is arranged on the back of the slope guard plate (12), the connecting box (112) corresponds to the pre-buried box (111), the connecting box (112) is provided with a through hole (1121) and a hooking groove (1122) communicated with the through hole (1121), and the end of the anchor (11) is provided with a hooking plate (113). The hooking plate (113) is used for penetrating the through hole (1121) and entering the connecting box (112); The anchor (11) enters the connecting box (112) in a position corresponding and perpendicular manner through the through hole (1121) and the hooking plate (113), the tongue and groove correspond to the dam energy dissipation body (20), the U-shaped cover (14) is arranged on the outside of the L-shaped butt joint plate (13) corresponding to the adjacent two slope guard plates (12), and the joint body (138) is connected with the air bag body (23) in advance; The sealing plates (132) are adjusted to be close to each other by the adjusting piece (135) until the sealing piece (133) is in a compressed state, and the joint body (138) and the arc-shaped groove are in a sealed state. The two ends of the energy dissipation part (21) are provided with ear strip plates (211), and the ear strip plates (211) are fixed on the slope guard plate (12) by the pressing strip (24) and the corrosion-resistant high-strength bolt; Step 4, in step 3, the adjusting piece (135) adjusts the extrusion block (134) at the same time, the two L-shaped butt joint plates (13) are close to each other, the hooking plate (113) is in the connecting box (112), and the end of the anchor (11) enters the hooking groove (1122) to form a hooking structure. Step 5, in step 3, first, the outer water inlet hole (1211) and the inner water inlet hole (1212) are positionally corresponding and the insertion of the insertion strip is inserted into the two, the energy dissipation part (21) is extruded, so that the connecting column is inserted into the sliding frame (1215) and forms a fixed connection, wherein the energy dissipation part (21) is provided with a gas charging and discharging nozzle, the inside of the energy dissipation part (21) is pre-charged with gas of a set required pressure by using the gas charging and discharging nozzle, the two ends of the driving rotating rod (1219) are connected with the buffer strip two (1218) and the pressure bearing plate (212) through the rotating shaft respectively; When the river flow rushes to the slope guard plate (12), the energy dissipation part (21) and the pressure bearing plate (212) are elastically deformed after being impacted, so that the internal gas enters the inside of the air bag body (23) and pushes the extrusion plate (22) to compress the reset spring (1216), at the same time, the sliding frame (1215) moves in the movable cavity (1214) inside the slope guard plate (12), so that the inner water inlet hole (1212) and the outer water inlet hole (1211) are staggered, after being staggered, the reserved air cavity air in the movable cavity (1214) can be compressed as the sliding frame (1215) continues to move, when the inner backflushing hole (1213) and the outer water inlet hole (1211) are positionally corresponding, the internal water is high-pressure outflashed from the inner backflushing hole (1213) to offset the water flow impact, wherein when the energy dissipation part (21) is elastically deformed, the filter screen plate (1220) is removed from the outer water inlet hole (1211) under the action of the driving rotating rod (1219) together with the buffer strip two (1218), when the inner backflushing hole (1213) and the outer water inlet hole (1211) are positionally corresponding, it is in a completely removed state, and a cleaning operation is completed by the cleaning plate (1221); When the river flow recedes, the energy dissipation part (21) is elastically reset at the first time, at the same time, the sliding frame (1215) and the extrusion plate (22) are reset together under the joint action of the reset spring (1216) and the elastic reset of the energy dissipation part (21), the inner water inlet hole (1212) and the outer water inlet hole (1211) are positionally corresponding again, at the same time, the buffer strip two (1218) drives the filter screen plate (1220) to cover the outside of the outer water inlet hole (1211), the receding water flow is sucked into the movable cavity (1214).

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