32results about "Wall dams" patented technology

The invention discloses an ice-pulling-resistant system and method for a concrete dam hanging pipe in an alpine region, and relates to the technical field of hydraulic engineering, and the system comprises an intelligent monitoring module which employs a distributed optical fiber strain sensor group to capture the micro-strain of a pipe body in real time, and combines an ice layer thickness radar, a vertical temperature measurement chain and a high-dynamic water level gauge; an ice-water-structure multi-physical field sensing network is constructed; according to the dynamic regulation and control module, a phase change material heat blocking layer is arranged on the pipe wall, and solid-liquid phase change is induced through pulse heating to generate an interface lubricating film; the anchoring end is provided with a gradient stiffness unit, and a negative Poisson's ratio metamaterial cushion layer and a shape memory alloy damper are connected in series, so that the stiffness is increased in an exponential level along with the ice pulling force; and the edge calculation control module is used for fusing multi-source data based on an LSTM-physical hybrid model, generating an ice pulling force predicted value, dynamically triggering graded response, starting PCM heating to maintain the flexibility of a cushion layer in primary response, activating SMA rigidity jump in advanced response and cooperating with high-voltage electric pulse stripping.

The utility model discloses a sensor protection cover for a rolling machine steel wheel, which comprises a fixed seat and a cover body arranged on the fixed seat, one side of the cover body is opened to form an inlet and outlet, a cover body used for sealing the inlet and outlet is detachably arranged on the cover body, a fixing assembly used for fixing an acceleration sensor is arranged on the cover body, and a wire passing hole is formed in the cover body. And a flexible wire sleeve is arranged in the wire passing hole. The utility model further discloses a rolling machine which comprises a body, an operation chamber arranged on the body, a steel wheel arranged at the bottom of the body and a sensor protection cover, a fixing base is fixed to the steel wheel, an acceleration sensor is arranged in the cover body, the inlet and the outlet are covered with a cover body, and the acceleration sensor is fixed to the cover body through a fixing assembly and clamped between the cover body and the bottom wall of the cover body. An external connection wire of the acceleration sensor penetrates through the flexible wire sleeve to be connected with the operation room, and the external connection wire is sleeved with a sheath. According to the sensor protection cover for the rolling machine steel wheel and the rolling machine, an acceleration sensor is prevented from being damaged, and the acceleration sensor is convenient to disassemble and replace.

The present invention discloses a method for reinforcing an asphalt core dam located on a deep covering layer. The method comprises the following steps: excavating the surface of the covering layer to the bottom elevation of a concrete pedestal to form a steel-plastic bidirectional geogrid laying area; an intersection area exists between the steel-plastic bidirectional geogrid laying area and the concrete pedestal foundation pit; pouring pedestal concrete and forming the area integrally with the steel-plastic bidirectional geogrid located in the pedestal; continuously laying the steel-plastic bidirectional geogrid upward layer by layer on the top surface of the pedestal and simultaneously constructing the asphalt concrete core wall until the dam body construction is completed; the present invention adopts the steel-plastic bidirectional geogrid to connect the concrete anti-seepage wall, the pedestal and the deep covering layer in the deep covering layer into a whole, which can significantly improve the ability of the overall anti-seepage system composed of the asphalt core wall, the pedestal and the anti-seepage wall to resist the uncoordinated deformation caused by large deformation of the deep covering layer caused by dam body filling, water storage and seismic loads, and can improve the deep anti-sliding stability of the asphalt core dam located on a deep covering layer with a weak interlayer.

This utility model provides a structure for converting a clay core dam into an overflow dam, including a spillway excavated along the top of the clay core dam to the bottom of the downstream side. A spillway bottom slab is poured below the spillway, and side walls are poured on both sides of the spillway bottom slab. The height of the side walls is not lower than that of the clay core dam on both sides. An overflow weir is poured on the spillway bottom slab, and the overflow weir is located in the direction of the top of the clay core dam. The two sides of the overflow weir are connected to the side walls, and the height of the overflow weir is lower than that of the clay core dam on both sides. An anti-seepage wall is embedded in the clay core dam below the overflow weir. The overflow dam is converted on the clay core dam to ensure that the converted clay core dam has a certain discharge capacity, thereby enhancing the flood control capacity of the reservoir.

The utility model relates to the technical field of reservoir dam protecting and reinforcing facilities, and discloses a reservoir dam protecting and reinforcing structure which comprises a dam body mechanism and a dam body reinforcing mechanism arranged on the outer side of the dam body mechanism, the dam body mechanism comprises a front dam body, a rear dam body is fixedly connected to the lower portion of the rear end of the front dam body, and the front end of the front dam body is arranged in an inclined mode. A plurality of arc-shaped grooves are formed in the inclined face of the front end of the front dam body at equal intervals, and the dam body reinforcing mechanism comprises a slope reinforcing mechanism fixedly connected to the front end of the front dam body. The simplified dam body front end reinforcing structure design is adopted, the dam body front end reinforcing structure comprises a slope reinforcing mechanism arranged along the front side of the front dam body of the reservoir dam, the slope reinforcing mechanism is of a reinforced concrete structure and is formed in a pouring mode along the front dam body, and meanwhile a reinforcing inclined strut is connected between the front dam body and the rear dam body and corresponds to the rear side of an arc-shaped groove of the front dam body. In addition, the structure is of a reinforced concrete structure, the whole construction is simple, and the cost is low.

The present invention relates to an asphalt concrete core wall rockfill dam layout structure and construction method. The purpose of the present invention is to provide an asphalt concrete core wall rockfill dam layout structure and construction method, so as to improve the foundation adaptability of the asphalt concrete core wall rockfill dam, reduce the requirements for the performance of dam construction materials, and improve the safety and economy of the asphalt concrete core wall rockfill dam. The technical solution of the present invention is: an asphalt concrete core wall rockfill dam layout structure, characterized in that: the dam body of the asphalt concrete core wall rockfill dam adopts an arched layout convex to the upstream, and the dam axis of the dam body is formed by two arcs with radii R1 and R2 respectively, which are tangent to the middle of the riverbed; among the two arcs of the dam axis, the arc connected to the bank slope with steep slope and deep cover adopts a smaller arc radius, and the arc connected to the bank slope with relatively gentle slope and relatively shallow cover adopts a relatively larger arc radius; when the terrain and geological conditions on both sides of the bank are well symmetrical, the arc radius R1 is equal to R2.

The invention discloses an alpine region asphalt core wall base and copper water stop strip collaborative anchoring and interface anti-seepage construction method, and relates to the technical field of hydraulic engineering, the method comprises the following specific steps: construction preparation and pretreatment: flushing and cleaning a dam foundation rock surface and an anti-seepage wall concrete surface in a corresponding range of a base; according to the method, through multi-layer interface treatment and rolling control, an anti-seepage structure adaptive to the low-temperature environment is successfully constructed, after the base concrete is cured, the periphery of the water stop piece is brushed with asphalt mastic, the top face of the base is preheated before an asphalt core wall is paved, and then the asphalt core wall is paved, so that the anti-seepage structure adaptive to the low-temperature environment is constructed; according to the method, the initial grinding temperature and the final grinding temperature of the asphalt mixture are controlled, and the two sides of the axis of the water stop strip are rolled through specific vibration rollers, so that the problems that microcracks are generated due to low-temperature shrinkage of an interface and crack propagation is aggravated due to the freezing and thawing cycle effect are effectively solved, and long-acting seepage prevention is achieved.

The invention particularly discloses an overwintering and long-interval interlayer anti-seepage treatment method for an asphalt concrete core wall dam in a severe cold area. Aiming at the technical defects of poor interlayer combination and easy formation of a leakage channel caused by low-temperature freezing and thawing and long-interval construction in the wintering period of an asphalt concrete core wall dam in severe cold and high latitude areas, the construction method comprises the following steps: bottom layer pouring transformation before wintering / long interval, concave groove forming and two-cloth and one-membrane geotextile embedding; and the steps of interface pretreatment after overwintering / long interval, upper asphalt concrete pouring and wrapping, rolling compaction and the like are conducted, and the sandwich type water stop structure of bottom layer concrete-two-cloth-one-membrane geotechnical cloth-upper layer concrete is formed. According to the method, the seepage path length is prolonged, the seepage-proofing reliability is improved, the method is suitable for overwintering and long-interval interlayer seepage-proofing treatment of asphalt concrete core wall dams in various severe cold areas, the method has the advantages of being wide in adaptability, easy and convenient to construct, high in durability and the like, the interlayer stripping seepage problem which is difficult to deal with in the traditional technology is effectively solved, and the long-term seepage-proofing safety of the dam body is guaranteed.

A high-pressure jet grouting construction method for a concrete cutoff wall for a dam, comprising the following steps: S1, determining a cutoff wall method; S2, determining a cutoff wall location; S3, optimizing a cutoff wall construction procedure; and S4, performing cutoff wall joint treatment. The construction method employs a series of operations to determine whether a cutoff wall method is feasible; extending a seepage path to reduce a hydraulic gradient when the hydraulic gradient does not meet requirements; optimizing a cutoff wall location by moving the cutoff wall to an upstream side of a dam body; constructing the dam body and the cutoff wall at the same time without mutual interference to accelerate construction progress; and performing cutoff wall cap casting before constructing the high-pressure jet grouting cutoff wall, thereby saving time spent on working platform excavation and secondary backfill, saving construction costs, and reducing the duration of construction.

In a method for relieving the pressure on a main dam (1) of a dam assembly (13), wherein the dam assembly (13) comprises a main dam (1) for impounding a reservoir, a relief wall (5) is constructed downstream of the main dam (1), which has a lower height than the main dam (1), wherein a relief lake (6) is formed between the main dam (1) and the relief wall (5) such that the resulting hydrostatic pressure forces on the main dam (1) are reduced.

The invention provides a concrete dam capable of achieving dam heel self-repairing, the concrete dam comprises a dam body, a detection piece and a self-repairing microcapsule, a self-repairing reinforcing area is formed at the dam heel of the dam body, and the self-repairing reinforcing area is provided with a self-repairing concrete main body; the detection piece is arranged in the self-repairing concrete main body so as to be suitable for detecting the cracking condition of the self-repairing concrete main body; the self-repairing microcapsule is arranged in the self-repairing concrete main body and is suitable for releasing a repairing agent when the self-repairing concrete main body cracks; the repairing agent is suitable for reacting with water, and the reaction product is suitable for filling cracks. According to the method, self-repairing of dam body cracking can be achieved, the integrity of the dam body is restored, the anti-seismic safety performance of the dam body is guaranteed, and the stability and reliability of the dam are improved; and meanwhile, the manual maintenance cost and time are reduced, and the maintenance efficiency is improved.

The invention relates to the technical field of hydraulic engineering construction, and discloses a geomembrane inclined wall dam slope surface slope rolling construction technology which comprises the steps that fine brushing treatment is sequentially conducted on a dam slope surface, the reserved settlement thickness is determined in combination with a rolling test, and after cushion materials are laid, a slope roller driven by dam crest traction equipment is adopted for vibration rolling. Vibration is started during uphill to realize effective compaction, and vibration is stopped during downhill to prevent equipment from slipping; and finally, a geomembrane is laid on the qualified cushion layer. According to the process, directional vibration control and traction type operation are combined, so that the compaction uniformity, the surface flatness and the construction safety of a cushion material under the high and steep slope condition are improved, and a stable and reliable anti-seepage foundation is provided for a geomembrane.

A synchronous construction mechanical device for extruding side walls and compacting cushion layers of a concrete face rockfill dam, belonging to the technical field of construction machinery, includes an extrusion side wall machine and a plate vibratory rammer. The tail of the extrusion side wall machine is connected to a towed vehicle frame. The plate vibratory rammer is connected to the left side of the rear part of the towed vehicle frame. A side wall slope protection is connected to the right side of the rear part of the towed vehicle frame. The upper part of the towed vehicle frame is open and provided with a feeding port, and a hopper is arranged at the feeding port. The synchronous construction mechanical device for extruding side walls and compacting cushion layers of a concrete face rockfill dam uses a towed vehicle frame to carry a plate vibratory rammer, realizing the paving and compaction of cushion materials while constructing the extrusion side walls. It not only ensures the compaction quality at the joint of the side walls and cushion materials, but also effectively improves the construction efficiency. At the same time, the setting of the side wall slope protection protects the formed but unhardened extrusion side walls from being affected by the compaction construction and not deforming, realizing the integrated synchronous construction of the side walls and cushion materials.

The invention discloses an assembly type protective barrier for edge protection of a roller compacted concrete dam bin face, which comprises poured roller compacted concrete and to-be-poured roller compacted concrete in a dam body of a dam, two sides of the to-be-poured roller compacted concrete are provided with turning and lifting steel templates, the bottoms of the turning and lifting steel templates are fixed with the dam body, and the turning and lifting steel templates are fixed with the dam body. The inner side of the turning and lifting formwork is fixed through diagonal draw bars, an assembly type protective fence is arranged above the turning and lifting steel formwork and arranged along roller compacted concrete to be poured, the turning and lifting steel formwork comprises fixing rods arranged on the two sides in parallel, the fixing rods on the inner side are provided with supporting steel plates making contact with the concrete, and the supporting steel plates are arranged on the fixing rods on the outer side of the turning and lifting steel formwork. A plurality of inclined reinforcing beams are arranged between the fixing rods on the two sides; according to the assembly type protective barrier for edge protection of the roller compacted concrete dam bin face, the high-altitude edge operation risk can be eliminated on the dam bin face, the overall structure is stable, assembly is convenient, manual vibration can be assisted through the protective barrier, the physical strength of workers can be saved, and the assembly type protective barrier is suitable for application and popularization.

The application discloses an anti-seepage structure system, in particular to an anti-seepage structure system for a concrete dam on a covering layer foundation, and belongs to the technical field of water conservancy and hydropower engineering structure design and manufacturing. The application provides an anti-seepage structure system for a concrete dam on a covering layer foundation, which can be widely applied to various permanent anti-seepage wall constructions and has a small construction scene. The anti-seepage structure system comprises a concrete dam body and an anti-seepage structure, and further comprises an elastic buffering anti-seepage connecting structure; the anti-seepage structure in the covering layer is connected with the concrete dam body on the covering layer through the elastic buffering anti-seepage connecting structure to form an integral whole.

A power generation system may include a powerhouse. The powerhouse may include a flow path structure, a power generation support structure, and an access port. The flow path structure may define at least a portion of a flow path. The flow path structure may be configured to accept fluid at an input port to enter the powerhouse and direct the fluid to exit the powerhouse at an output port. A power generation support structure may be, at least partially, constructed of precast segments. The power generation support structure may be configured to support weight of a power generator in an arrangement operably disposed within the flow path. An access port may be different from the input port, and the access port may be aligned to enable removable coupling of the power generator to and from the power generation support structure.

A dam construction steel formwork with an anti-cracking effect and a cooling control system comprise a steel formwork 10 and a cooling water spray head 20, and the steel formwork 10 is a concrete pouring formwork arranged on the upstream face of a concrete dam. The control system detects the temperature of each cooling area of the steel formwork in real time, detects the temperature of a cooling water source, detects the environment temperature, the wind speed and the solar radiation intensity of a dam construction site, and takes the parameters as boundary conditions of finite element calculation; the control system detects the dynamic irradiation area of the sun on the steel formwork, detects the temperature gradient in dam concrete, calculates the water flow needed by cooling of the steel formwork, and controls the cooling water spray head 20 to spray cooling water to the cooling area 11. A plurality of independent partitioned cooling areas are arranged, and temperature control of the steel formwork is accurately adjusted, so that the concrete temperature peak value is reduced, internal and external temperature difference stress is reduced, and the anti-cracking purpose is achieved.

The utility model discloses an assembly type protective barrier for edge protection of a roller compacted concrete dam bin face, which comprises poured roller compacted concrete and roller compacted concrete to be poured in a dam body of a dam, two sides of the roller compacted concrete to be poured are provided with turning and lifting steel formworks, the bottoms of the turning and lifting steel formworks are fixed with the dam body, and the bottom of the turning and lifting steel formworks is fixed with the dam body. The inner side of the turning and lifting formwork is fixed through diagonal draw bars, an assembly type protective fence is arranged above the turning and lifting steel formwork and arranged along roller compacted concrete to be poured, the turning and lifting steel formwork comprises fixing rods arranged on the two sides in parallel, the fixing rods on the inner side are provided with supporting steel plates making contact with the concrete, and the supporting steel plates are arranged on the fixing rods on the outer side of the turning and lifting steel formwork. A plurality of inclined reinforcing beams are arranged between the fixing rods on the two sides; according to the assembly type protective barrier for edge protection of the roller compacted concrete dam bin face, the high-altitude edge operation risk can be eliminated on the dam bin face, the overall structure is stable, assembly is convenient, manual vibration can be assisted through the protective barrier, the physical strength of workers can be saved, and the assembly type protective barrier is suitable for application and popularization.

The sediment storage dam structure comprises a water-permeable sediment storage dam section, the water-permeable sediment storage dam section is in a trapezoid shape, an overflow weir is arranged at the top of the water-permeable sediment storage dam section, retaining walls are symmetrically arranged on the two sides of the trapezoid face of the water-permeable sediment storage dam section, a traffic bridge is arranged between the two retaining walls, and water retaining dam sections are arranged on the sides, away from the water-permeable sediment storage dam section, of the two retaining walls. An energy dissipation step is arranged on one side of the water-permeable sediment storage dam section slope, a stilling pool is arranged at the bottom end of the energy dissipation step, an apron is arranged on the side away from the energy dissipation step, and the other side of the apron is connected with a river channel. The construction method of the sediment storage dam structure comprises the steps that the water-permeable sediment storage dam section foundation is laid, and the retaining walls are poured on the two sides of the water-permeable sediment storage dam section foundation; a permeable sediment storage dam section is paved at the same elevation while the energy dissipation steps are poured; an overflow weir is poured, and a stilling pool and an apron are constructed; retaining dam sections are arranged on the outer sides of the two retaining walls; a traffic bridge is installed on the tops of the two retaining walls. The sediment storage dam structure has the advantages that unmanned operation can be achieved, and secondary heightening or rebuilding treatment is not needed.

The utility model relates to the technical field of dam body seepage prevention and water stop, and discloses a concrete dam body joint seepage prevention self-adaption water stop belt which comprises an outer plate, the inner bottom wall of the outer plate is fixedly connected with a thermoplastic elastic layer, the top wall of the thermoplastic elastic layer is fixedly connected with an anti-tearing layer, and the top wall of the anti-tearing layer is fixedly connected with a waterproof layer. A plurality of high-strength rubber strips are fixedly connected to the front side of the inner wall of the anti-tearing layer at equal intervals, a plurality of connecting ribs are fixedly connected to the left side of the inner wall of the anti-tearing layer, a gel plate is fixedly connected to the top wall of the anti-tearing layer, and a weather-proof mechanism is arranged on the top wall of the gel plate and used for improving the weather resistance of the water stop belt. According to the utility model, the thermoplastic elastic layer is used as the base layer of the water-stop belt, so that the deformation adaptability of the water-stop belt is improved, the water-stop belt can be deformed along with the deformation of a dam body, the water-stop effect is kept, and then under the connection of the tear-resistant layer, the situation of local damage or aging cracking caused by the external influence is reduced.

The utility model discloses a hydraulic dam structure capable of realizing sediment flushing and accurate positioning of lifting height, a water spraying pipeline is movably arranged in a concrete bottom plate, the water spraying pipeline penetrates through each hydraulic cylinder groove, the water spraying pipeline positioned in the hydraulic cylinder groove is connected with a spray head and is movably sleeved with a supporting seat, and the supporting seat is connected with the concrete bottom plate. The supporting seats are fixed in the hydraulic cylinder grooves, one pressure sensor is arranged at the bottom of each hydraulic cylinder groove, one end of the water spraying pipeline extends into an equipment room beside a river channel and is connected with a water suction pump through a rotating joint via a pipeline, the water suction pump is connected with a water suction pipe, and the water spraying pipeline located in the equipment room is further connected with a water spraying pipeline rotation driving mechanism. According to the hydraulic dam structure, the hydraulic rod groove can be washed, and gravels and silt can be effectively prevented from entering the hydraulic cylinder groove. The lifting height of the gate can be detected in real time through the sensor, control is simple, the lifting height of the gate can be controlled accurately, and possible faults can be found in time.

The utility model discloses a slope twisted surface dam anti-seepage plate slip form device which comprises a plurality of I-shaped steel guide rails which are arranged at intervals in the width direction of an anti-seepage plate, and the extending direction of the I-shaped steel guide rails is parallel to the extending direction of an X line of a toe board. Each I-shaped steel guide rail is suspended and fixed above the foundation surface of the anti-seepage plate through a plurality of anchor rods which are arranged at intervals along the extension direction of the I-shaped steel guide rail; the formwork mechanism comprises side formworks vertically arranged on the two sides of the foundation surface of the anti-seepage plate and a panel which is in lap joint with the tops of the two side formworks in a sliding mode, a reinforcing framework is welded and fixed to the upper surface of the panel, and a traction mechanism is connected to the reinforcing framework; the guide sliding mechanism comprises a plurality of sliding assemblies arranged at the top end and the bottom end of the upper surface of the reinforcing framework in groups, and the sliding assemblies are matched with the guide rails to guide the whole panel to slide in the extending direction of the guide rails.

A power generation system may include a powerhouse. The powerhouse may include a flow path structure, a power generation support structure, and an access port. The flow path structure may define at least a portion of a flow path. The flow path structure may be configured to accept fluid at an input port to enter the powerhouse and direct the fluid to exit the powerhouse at an output port. A power generation support structure may be, at least partially, constructed of precast segments. The power generation support structure may be configured to support weight of a power generator in an arrangement operably disposed within the flow path. An access port may be different from the input port, and the access port may be aligned to enable removable coupling of the power generator to and from the power generation support structure.

The utility model provides a simple and convenient assembly type reinforced concrete prefabricated corridor suitable for a concrete dam, which is formed by assembling a prefabricated reinforced concrete cover plate, a prefabricated reinforced concrete side wall and a prefabricated reinforced concrete bottom plate, expansion water-stop strips are arranged in a joint between the prefabricated reinforced concrete cover plate and the prefabricated reinforced concrete side wall and a joint between the prefabricated reinforced concrete side wall and the prefabricated reinforced concrete bottom plate; and the prefabricated reinforced concrete cover plate, the prefabricated reinforced concrete side wall, the prefabricated reinforced concrete bottom plate and the expansion water stop strip are fixedly connected through expansion bolts. The prefabricated corridor can be prefabricated in advance in a prefabricating field, standard formworks are adopted, customization is not needed, formwork cost is saved, resource investment of a construction site is reduced, construction is convenient, and construction cost is low; the precast blocks are small in size, are rectangular plates and are convenient to stack and transport; the structure is simple in shape and convenient to prefabricate; the precast blocks are light in weight and convenient to hoist and assemble; the method is suitable for small and medium-sized projects with limited construction conditions.

The utility model belongs to the technical field of hydropower station foundation engineering equipment, and relates to a water stop structure for a joint of a wave wall and a core wall top of an asphalt core wall dam, which comprises a water stop piece and a first U-shaped part, the second U-shaped part is arranged below the first U-shaped part, an opening of the second U-shaped part faces upwards, one end of the second U-shaped part is connected with the other end of the first U-shaped part, the other end of the second U-shaped part is connected with the other side wall of the top seam, and the second U-shaped part and the first U-shaped part are in central symmetry. According to the utility model, the water stop strip can deform when the concrete wave wall and the asphalt core wall move up and down in a staggered manner along the vertical direction, so that the water stop strip can better adapt to a vertical staggered deformation mode at a top joint formed between the concrete wave wall and the asphalt core wall; the water stop structure is prevented from being damaged due to the fact that the water stop piece is damaged in the actual operation process, the service life of the water stop piece is prolonged, the water stop effect is improved, and therefore the anti-seepage performance of the dam body structure is improved.

The invention discloses an anti-seepage wall-toe plate clamping type connecting structure and a construction method in the field of hydroelectric and hydraulic engineering. The anti-seepage wall-toe plate clamping type connecting structure comprises a foundation, the foundation is provided with an anti-seepage wall body, and a connecting structure is arranged between the anti-seepage wall body and a panel; the connecting structure comprises a mortar cushion layer arranged at the upper end of the foundation, and a limiting plate, a connecting plate and a toe plate are sequentially arranged at the upper end of the mortar cushion layer from the diaphragm wall to the panel. The number of the limiting plates is multiple, and the multiple limiting plates are connected in sequence. Each limiting plate is provided with a first end and a second end, the second end of one limiting plate is clamped and matched with the first end of the other limiting plate, a clamping groove is formed in the side, close to the limiting plates, of the anti-seepage wall body, and the first end, closest to the anti-seepage wall body, of the limiting plate is matched with the clamping groove; the connecting plate is provided with an abutting part, and the second end of the limiting plate farthest from the anti-seepage wall body is in abutting fit with the abutting part; the deformation value of the joint between the anti-seepage wall and the first connecting plate is effectively reduced, and meanwhile the problem that a peripheral anti-seepage system generates high stress due to limiting measures is solved.

The utility model discloses a distribution structure for pouring and concrete conveying of a dam abutment on the side edge of a dam body. The distribution structure comprises a concrete chute capable of conveying concrete; and the supporting frame assembly is used for stably supporting the concrete chute. The pulling and binding rings penetrate through the annular holes in the different sections of the concrete chute, the two ends of the pulling and binding rings are fixed to the vertical rods in a sleeving mode, when a concrete transporting vehicle on a transportation road pours concrete into the concrete chute on the slope face, the pulling and binding rings on the different sections of the concrete chute can disperse and transmit impact to the slope face through the vertical rods, and the problem that when a large amount of concrete is transported, the impact is caused is solved. And broken stones in the concrete can impact the chute surface, so that the installation state of the concrete chute is unstable.

The utility model discloses a stepped debris flow silt arrester which comprises a dam body foundation, a dam body main body, stepped water retaining strips and drainage holes. The dam body main body is fixedly connected to the upper surface of the dam body foundation, and a step structure is arranged on the downstream face of the dam body main body; the two stepped water retaining strips are arranged side by side and fixedly connected to the upper surface of the dam body foundation, and the stepped structure is located between the two stepped water retaining strips. The drain hole is formed in the side wall of the dam main body in a penetrating manner, and the drain hole penetrates through the step structure; wherein the top surface of the stepped water retaining strip is an inclined surface. The silt arrester can reduce the flow speed of debris flow, dissipate part of energy of the debris flow, buffer impact force of the debris flow and dimension stones, enhance the stability of the dam body, reduce the erosion effect of the surrounding of the dam body caused by diffusion of the overflowed debris flow concentrated on the stepped structure, and prolong the service life of the silt arrester.