428results about "Rock-fill dams" patented technology

According to the intelligent rolling construction method and system for the concrete face rockfill dam and the computer readable storage medium, self-adaptive adjustment of the rolling speed and frequency is achieved through three-dimensional digital elevation model generation, optimal rolling path planning, rolling parameter dynamic optimization model and real-time compaction degree prediction. The system integrates satellite positioning, BIM model verification, cloud data management and an abnormal protection mechanism, can correct path deviation in real time, generates a pressure supplementing instruction and stores construction data, provides an intelligent solution for high-precision and high-reliability rock-fill dam construction, and is suitable for popularization and application. The technical problems that in traditional rolling construction, manual experience is relied on, parameters are static, monitoring lags behind, and the rework rate is high can be solved.

The invention provides a half-excavation and half-filling whole reservoir basin seepage-proofing drainage type which comprises an asphalt concrete panel arranged along the peripheral side of a reservoir basin and a geomembrane laid at the reservoir bottom, and the asphalt concrete panel on one side of a reservoir bank is in lap joint with the geomembrane by arranging a reservoir bank concrete gallery. The asphalt concrete panel on the concrete faced rockfill dam is in lap joint with the geomembrane through the concrete connecting plate, and the asphalt concrete panel and the geomembrane are connected and fixed through the concrete connecting plate and the reservoir bank concrete gallery. The problem that a concrete panel adopted by a high dam is easy to extrude and damage and the defect that an asphalt concrete panel at the upper reservoir bottom of a high slag filling body is difficult to adapt to non-uniform deformation are overcome, and a new anti-seepage solution is provided for projects with complex terrain and geological conditions, high dam height, deep reservoir bottom filling and poor filling materials; by arranging the reservoir bank concrete gallery, the reservoir bottom concrete gallery and the forebay concrete gallery, a partition monitoring system is formed, the leakage defect part of the reservoir basin can be quickly and effectively identified, and the engineering operation safety is ensured.

The utility model discloses a steel plate core wall rock-fill dam with a reinforcing structure, and relates to the technical field of steel plate core wall rock-fill dams. The device comprises a steel plate, rockfill bodies are arranged on the left side and the right side of the steel plate, a reinforcing assembly is arranged at the top of the steel plate and comprises a pressing plate, a threaded ring is arranged in the center of the bottom of the pressing plate, an arc-shaped groove is formed in the top of the pressing plate, and a rotating ring is rotationally connected to the outer surface of the threaded ring. Clamping blocks are fixedly connected to the outer surfaces of the rotating rings, the rotating rings are connected with a steel plate in an inserted mode, a plurality of reinforcing rods are fixedly connected to the left side and the right side of the steel plate, and reinforcing plates are fixedly connected to the outer surfaces of the reinforcing rods. The reinforcing assembly is arranged, specifically, the pressing plate is connected with the steel plate and the rock-fill body in an inserted mode, the pressing plate is fixed through the clamping block and the clamping block, the top of the rock-fill body can be reinforced through installation of the pressing plate, the situation of slipping off is avoided, and safety is improved.

The utility model discloses a concrete faced rockfill dam foundation drainage structure, and relates to the technical field of drainage structures, the concrete faced rockfill dam foundation drainage structure comprises a concrete faced rockfill dam, a drainage hole is arranged in a foundation of the concrete faced rockfill dam, a reinforced gabion is arranged on the outer side of an inlet of the drainage hole, and a concrete retaining wall is arranged on the inner side of the inlet of the drainage hole. And a concrete toe board is arranged on the concrete faced rockfill dam. The foundation drainage structure is arranged in the dam foundation range of the concrete face rockfill dam with higher terrain at the downstream of the concrete toe board, seepage water of the dam is drained, and the possibility that reverse water pressure is generated at the bottom of a face plate, and safety is affected is avoided; the outlet of the drainage tunnel is located at the downstream of the dam and can be provided with a road or an inspection channel, and daily maintenance personnel can conveniently enter and exit; the drainage tunnel structure is large in drainage capacity, not prone to clogging and capable of effectively draining seepage water of the dam, and therefore reverse water pressure borne by the dam panel is reduced.

The invention relates to the technical field of earth dam buildings, and discloses an ecological earth dam which comprises a dam body, an anti-seepage body and root system developed plants. The anti-seepage body comprises a first core wall body, a second core wall body and a steel pipe fitting, the first core wall body is arranged at the bottom of the dam body, one end of the second core wall body is connected with the first core wall body, the other end of the second core wall body extends in the vertical direction and is flush with the top of the dam body, the steel pipe fitting is arranged in the vertical direction, and one end of the steel pipe fitting is inserted into the first core wall body; a cavity is formed in the steel pipe fitting, an extension pipe extending in the width direction of the dam body is arranged on the outer wall of the steel pipe fitting, one end of the extension pipe is communicated with the cavity, the other end of the extension pipe penetrates through the second core wall body to extend towards the upstream slope surface of the dam body, and a water permeable hole is formed in the extension pipe; the root system developed plant comprises an overground part and an underground part, the overground part is planted on the upstream slope surface of the dam body, the underground part extends towards the direction of the water permeable holes, and the dam body is effectively reinforced through the cooperation of the anti-seepage body and the root system developed plant.

The invention provides a rolling quality parameter uncertainty quantification method based on mixed entropy-fuzzy clustering. The method comprises the following steps: S1, multi-source data fusion: integrating rolling compaction parameters, meteorological data and real-time monitoring data in an engineering construction process, and constructing a multi-dimensional feature matrix; s2, calculating mixed entropy, namely quantifying the randomness and fuzziness of parameter distribution in combination with information entropy and fuzzy entropy; s3, performing dynamic fuzzy clustering, namely, optimizing a clustering center based on an improved firefly algorithm, and dividing parameter uncertainty levels; step S4, uncertainty contribution degree analysis: quantifying the influence weight of each parameter on the rolling quality through an entropy weight-grey correlation method; according to the method, the information entropy and the fuzzy entropy are fused, and dynamic clustering and an intelligent optimization algorithm are combined, so that precise quantification and hierarchical management and control of the rolling parameter uncertainty are realized.

The utility model belongs to the technical field of asphalt concrete face rock-fill dams, and discloses an asphalt concrete face heat preservation structure which is arranged between the dam top and the reservoir bottom of a dam and comprises an asphalt concrete face and a heat preservation layer which are sequentially laid on dam filling materials, and the heat preservation layer comprises a light frame and a plurality of heat preservation units. The light frame is provided with a plurality of containing cavities, the heat preservation units are clamped in the containing cavities, and fixing structures are arranged at the end, located at the dam crest and the end, located at the reservoir bottom, of the heat preservation layer. Heat preservation of the asphalt concrete panel is achieved by laying the light frame and the heat preservation unit on the asphalt concrete panel, construction is convenient and fast, the construction period is short, and the standardization degree is high; the stability of the overall structure of the heat preservation layer can be improved, meanwhile, the circumferential direction of the heat preservation unit can be fixed, and deformation of the heat preservation unit is effectively prevented; and the thermal insulation layer can be replaced conveniently when being damaged.

The utility model relates to the technical field of dam body reinforcing and reinforcing structures, in particular to a roller compacted concrete dam body reinforcing and reinforcing structure which comprises a roller compacted concrete dam body, vertical reinforcing plates, clamping plates, transverse connecting mechanisms and adjusting mechanisms, the vertical reinforcing plates are fixed to the outer wall of the roller compacted concrete dam body at equal intervals, and the clamping plates are fixed to the outer wall of the roller compacted concrete dam body; the transverse connecting mechanisms are arranged between every two adjacent vertical reinforcing plates, every two adjacent clamping plates can be in butt joint rapidly through the arrangement of the transverse connecting mechanisms, and meanwhile the linkage gears can be in butt joint rapidly under the limiting effect of the toothed plates through the arrangement of the adjusting mechanisms. When the reinforcing and reinforcing structure is assembled, the transverse connecting rods can be driven to rotate quickly, then the telescopic rods are driven to be in threaded linkage in the screw holes, the distance between every two adjacent telescopic rods can be quickly adjusted, the clamping plates can be quickly tensioned and loosened, and then the whole reinforcing and reinforcing structure can be quickly disassembled and assembled.

The invention discloses a spartina alterniflora management method based on mechanical mowing and tidal water level regulation, which comprises the following steps: using mechanical mowing equipment to mow spartina alterniflora in the growth peak period of spartina alterniflora, and cutting the overground part to the height less than 5cm; dividing the treatment area into high, medium and low tidal flat according to the tidal flat elevation, and establishing a dam filled with sand and covered with degradable cloth in each area; adjusting the height of the dam according to the tidal cycle and the tidal flat elevation, so that the high tidal flat area is submerged by natural saline water at least twice a month during the large tide; after the spartina alterniflora is treated, the sandy dam and the anti-scouring cloth are gradually removed, the original ecological system of the wetland is restored, and local plants are planted to promote natural restoration. According to the method, low-cost, high-efficiency and eco-friendly long-term treatment of the spartina alterniflora can be realized in a large-area mud flat area, so that the operability, sustainability and environmental friendliness of the treatment effect are remarkably improved, and the method has wide popularization and application values.

The utility model discloses a rock-fill dam, which relates to the technical field of water conservancy and hydropower engineering and comprises an asphalt concrete core wall, an upstream rock-fill area and a downstream rock-fill area. The downstream rockfill area comprises a first strength area and a fully-weathered rock area, one side of the fully-weathered rock area is connected with one side of the upper end of the asphalt concrete core wall, and the bottom of the fully-weathered rock area is connected with the top of the first inverted filter layer; the upstream rockfill area comprises a second strength area and a fully strong weathered rock area, one side of the fully strong weathered rock area is connected with the other side of the lower end of the asphalt concrete core wall, and the bottom of the fully strong weathered rock area is connected with the ground. The fully-weathered rocks are used above the normal water level of the rock-fill area at the downstream of the dam, and part of the fully-weathered rocks are used below the dead water level of the rock-fill area at the upstream, so that the fully-weathered rocks are fully utilized, the utilization rate of excavation materials is increased, the project investment is reduced, and environmental protection and water and soil conservation are facilitated.

The invention relates to the technical field of asphalt concrete core wall rock-fill dam construction, in particular to a joint structure of a concrete diaphragm wall and a core wall base and a construction method of the joint structure. The joint structure comprises an anti-seepage wall assembly, a first core wall base and a second core wall base, the bottom of the anti-seepage wall assembly is poured on bedrock, the first core wall base is arranged at the turning position of a bank slope base and a riverbed base and poured on the bedrock, the end of the anti-seepage wall assembly extends into the first core wall base, and the second core wall base is arranged at the top of the anti-seepage wall assembly; a first contact surface, a second contact surface and a third contact surface are arranged between the diaphragm wall assembly and the first core wall base, the first contact surface, the second contact surface and the third contact surface respectively correspond to three adjacent side walls of the diaphragm wall assembly, and protective layers are arranged in the first contact surface, the second contact surface and the third contact surface; a water stop assembly is arranged at the joint of the second core wall base and the anti-seepage wall assembly; the anti-seepage performance of the asphalt concrete core wall rock-fill dam is improved.

The invention discloses an arched concrete face rockfill dam and a construction method thereof, and relates to the technical field of water conservancy and hydropower engineering.The arched concrete face rockfill dam comprises dam body rockfill and a supporting assembly, and the supporting assembly is arranged on the slope face of the upstream side of the dam body rockfill; the arched panel unit covers the dam body rockfill upstream side slope surface, the vault of the panel unit faces the side away from the dam body rockfill slope surface, and the arched direction of the panel unit is the horizontal direction of the dam body rockfill slope surface, namely, the panel unit is arched transversely; the two ends of the panel unit are connected with the two supporting assemblies through hinge assemblies correspondingly, the hinge assembly structure between the arched panel and the arch support has good elasticity and deformation capacity, deformation of a dam body under the load effect can be effectively adapted, and panel damage caused by rigid connection is avoided; meanwhile, the design of the arch pier and the arch foundation ensures the stability of the arch support on the dam body, so that the stability of the panel is enhanced.

The invention relates to a structural design and construction method for improving stress deformation characteristics of an anti-seepage system of an upper face plate dam of a covering layer, which belongs to the technical field of earth and rockfill dam buildings and mainly comprises a step-shaped concrete anti-seepage wall, a Z-shaped connecting plate structure, a toe board, a concrete face plate, a supporting plate, a connecting plate weight, a concrete cushion layer and the like. The method comprises the steps that (1) construction of a main body vertical section and a top step section of the step-shaped concrete diaphragm wall is completed; (2) paving an asphalt concrete cushion layer and an inverted filter layer, and mounting a supporting plate; (3) a base plate, a Z-shaped connecting plate structure, a toe board, a concrete panel and a connecting plate weight are installed; and (4) construction of the flexible water stop seam and the peripheral seam is completed before water storage. According to the invention, the Z-shaped connecting plate structure, the connecting plate weight and the supporting plate are coordinated, so that the shearing and opening deformation of the horizontal anti-seepage system is changed from passive deformation resistance to active deformation control; flexible connection of the anti-seepage system is achieved through cooperative deformation of the flexible water stop seams, the reserved deformation joints and the base plates, deformation coordination of the top step section and the vertical section of the body of the anti-seepage wall is achieved under the action of high reservoir water pressure, the tensile stress of the downstream side of the body of the anti-seepage wall is reduced, and the reliability of the anti-seepage system is improved.

The equipment for construction of the reinforcement core wall of the earth and rockfill dam comprises a track conveying mechanism and a detection mechanism, the rail conveying mechanism comprises a guide pipe, an electric winch, a pulley, a box body, a supporting ejector rod, an electric fixing branch mechanism and a fixing shell which are installed together. And the electric detection mechanism is mounted in the fixed shell. The reinforcement core wall construction method comprises seven steps. A large amount of earth and rocks do not need to be excavated and transferred on the earth and rockfill dam in advance, the reinforcement cage processing station, the concrete raw material storage yard, the mixing station and the like are arranged on the downstream of the earth and rockfill dam body, and related materials which are processed on the downstream of the dam body in advance are conveyed to an operation area on the dam body through the rail conveying mechanism. And before safety accidents such as sinking and backward toppling occur to the track conveying mechanism, workers can be prompted to refix the track conveying mechanism through the detection mechanism in time, and accidents such as safety accidents occurring when the track conveying mechanism conveys materials are prevented. The construction cost is saved, and the construction time is shortened.

A synchronous construction method for cushion materials and mortar materials of an upstream side slope of a turn-back type concrete faced rockfill dam belongs to the technical field of water conservancy projects and comprises the following steps: A, construction equipment is in place; a1, surveying and setting out; a2, walking centering is carried out; a3, a side cushion material forming device close to the slope of the dam is placed in place; a4, placing the forming device away from the dam slope side cushion material in place; a5, a mortar forming device close to the side slope of the dam is in place; a6, a mortar forming device away from the dam slope side is in place; b, cushion material conveying and tamping; b1, cushion layer materials on the two sides are conveyed; b2, tamping a side cushion material close to a dam slope; b3, conveying a middle cushion layer material; b4, filling a cushion material; c, mortar conveying and tamping; c1, conveying the mortar close to the side slope of the dam; c2, tamping the mortar close to the side slope of the dam; d, the virtual bedding material is compacted; e, turning around the head of the construction equipment; according to the invention, synchronous construction of the mortar material and the cushion material is realized while layered paving forming of the cushion material with the thickness of 40cm is realized.

The invention discloses an anti-seepage structure and method for weir dam development and utilization. The anti-seepage structure comprises a plastic concrete anti-seepage wall and a dam foundation curtain grouting part located below the plastic concrete anti-seepage wall. The left and right bank curtain grouting anti-seepage parts are located on the two sides of the plastic concrete anti-seepage wall and above the dam foundation curtain grouting part; the plastic concrete anti-seepage wall comprises a middle concrete anti-seepage wall body and rockfill curtain grouting parts located on the upstream and downstream of the concrete anti-seepage wall body correspondingly. The anti-seepage structure and the anti-seepage method have the advantages of being excellent in anti-seepage performance, easy and convenient to construct, high in durability and the like, and can be widely applied to the engineering of transforming the weir body into the weir dam; an integral anti-seepage system is formed by the dam foundation curtain grouting part, the dam body plastic anti-seepage wall and the left and right bank curtain grouting parts of the barrier dam, and the anti-seepage capacity of the barrier dam is enhanced.

The invention provides a method for adjusting the moisture content of a tackified soil material yard, and belongs to the technical field of water conservancy and hydropower engineering construction. Calculating the unit water supplementing amount required by the unit volume of cohesive soil in each partition; calculating the total water supplementing amount required by the cohesive soil in each subarea; the number of water supplementing pits in each partition is determined; a plurality of water replenishing pits are uniformly arranged in each subarea; and the multiple arranged water supplementing pits are filled with water, mining is carried out after the water supplementing pits are placed for 2-5 days, mixing is carried out while mining is carried out, and the mixture is loaded and transported to a filling site after uniform mixing. According to the method, the water supplementing pit is arranged in situ in the mining material field, blending is carried out while mining is carried out, the uniformly-blended cohesive soil is directly loaded and transported to the filling field for use, the construction procedure is simple, a temporary soil material stacking field does not need to be additionally developed, secondary soil material transferring is not needed, and the treatment cost is saved; and the moisture content of the soil material increased by the method is close to the optimal moisture content, the humidity is uniform, and the quality of the soil material can be effectively improved.

The utility model relates to the technical field of water conservancy projects, in particular to an ecological diversion retaining dam which comprises a dam body, the two sides of the dam body are of slope structures, the side, making contact with the water surface, of the dam body is arranged to be an upstream slope, and the other side of the dam body is arranged to be a downstream slope. The concrete base, the ecological filtering layer and the dam-passing stone step are sequentially arranged in an overlapped mode, a plurality of drainage pipelines are arranged in the ecological filtering layer, steel frame strips are arranged between the ecological filtering layer and the dam-passing stone step at equal intervals, an overflow channel is formed in a gap between every two adjacent steel frame strips, and the overflow channels communicate with the upstream slope and the downstream slope correspondingly; a water retaining gate is arranged above the overflow channel and attached to the downstream slope, and one end of the water retaining gate is movably connected with the dam body. According to the utility model, the garden environment is beautified, water can be shunted for use, the utilization rate of water can be effectively improved, and the downstream flood risk can be reduced.

The invention relates to the technical field of impermeable membrane laying, and discloses an adjustable impermeable membrane laying machine of an earth rock cofferdam back slope type impermeable dam, which comprises a workbench, a moving device, a membrane spreading device and a membrane laying device, the moving device comprises a first bracket, a coupler, a first rotating shaft and a moving wheel; the film spreading device comprises a second support, a film spreading auxiliary roller, a second bearing, a third rotating shaft, a third chain wheel, a second chain and a fourth chain wheel, and the film laying device comprises a vertical plate, a first bearing, a mounting block, a fixing plate, a first spring, a limiting plate, a positioning plate, a first threaded hole, a first bolt, a first chain wheel, a first chain, a second chain wheel and a laying roller. The device further comprises a film pressing device, a film cutting device and a supporting device. According to the device, through linkage adjustment of the rotating speed of the first rotating shaft and the rotating speed of the film spreading auxiliary roller, the laying efficiency and quality are effectively and cooperatively improved, the precision of a notch is improved through the cutting assembly, and hot melting of an anti-seepage film in the later period is facilitated.

The invention provides a reservoir basin geomembrane and concrete toe board composite anti-seepage connecting structure and a safety monitoring method. The reservoir basin geomembrane and concrete toe board composite anti-seepage connecting structure comprises a concrete toe board, a GM-GCL composite anti-seepage connecting structure, a reservoir basin geomembrane and a special rolling area. Osmometers are arranged between the corrugated geomembrane and the GCL and below the GCL, and a safety monitoring meter is arranged at the position where the geomembrane is horizontally laid. The corrugated GM-GCL composite anti-seepage connecting structure is formed by the geomembrane and the GCL geosynthetic clay liner which are arranged in a corrugated mode, self-adaptive deformation is generated under the action of overlying water pressure by means of the telescopic characteristic of the corrugated GM-GCL composite anti-seepage connecting structure, and therefore the differential settlement difference between a concrete toe board and a reservoir basin foundation is coordinated, and the anti-seepage effect is achieved. Meanwhile, a special rolling area is arranged to improve the supporting capacity of the silty-fine sand filler and the transition layer below the composite anti-seepage connection structure, the problem that local connection of the anti-seepage geomembrane is damaged due to deformation discordance is effectively solved, and a leakage and deformation monitoring method of the corrugated GM-GCL composite anti-seepage connection structure is established; technical support is provided for concrete toe board and geomembrane anti-seepage connection design and a safety monitoring method in pumped storage power station reservoir engineering.

The invention relates to a surface barrier structure for dam termite prevention and an implementation method. A dam comprises a dam body, a protection slope, drainage prisms and infiltration lines. The surface barrier structure comprises an anti-termite layer which is arranged between a protection slope and a dam body and comprises a liquid-doped soil layer and a water-resisting layer from outside to inside; the water conveying system comprises a water conveying main pipe and water conveying branch pipes, the water conveying branch pipes are arranged at different elevations of the liquid-doped soil layer, the upper end of the water conveying main pipe is used for inputting doped liquid, and the lower end of the water conveying main pipe is connected with the water conveying branch pipes at different elevations; by pre-burying the water conveying pipeline, the process of increasing the salt (chemical) content of soil can be extended to the time after the dam body is completed, construction is easy and convenient, the influence on dam body construction is small, the construction period is shortened, the construction quality of the barrier structure is guaranteed, and the construction cost is reduced; the salt (pesticide) content of soil can be monitored in real time in the operation and maintenance period, salt (pesticide) water conveying is carried out according to actual conditions, the protection effect of the barrier structure is ensured, and maintenance is convenient; the water-resisting layer in the anti-termite layer is made of clay, combination of soil layers is facilitated, and stability of the dam slope is guaranteed.

The invention belongs to the technical field of water conservancy and hydropower engineering, and particularly relates to a joint structure and method between a concrete face dam diaphragm wall and a connecting plate. A joint structure between a concrete face dam diaphragm wall and a connecting plate comprises a step type joint located at the connecting position of the concrete diaphragm wall and the concrete connecting plate, a filling layer is arranged in the step type joint, the step type joint comprises a first connecting section, a second connecting section and a third connecting section from top to bottom, and the first connecting section, the second connecting section and the third connecting section are sequentially connected. The first connecting section and the third connecting section are both arranged perpendicular to the horizontal plane, and the second connecting section is arranged in an inclined mode relative to the horizontal plane. The stepped joint structure is arranged between the anti-seepage wall and the connecting plate, so that the settlement deformation difference between the concrete anti-seepage wall and the concrete connecting plate can be reduced, and the deformation safety of the joint part is improved.

The invention discloses a rock-fill concrete pouring track real-time monitoring and alarm device. The rock-fill concrete pouring track real-time monitoring and alarm device comprises a monitoring unit, an analysis control unit and an alarm feedback unit, the monitoring unit comprises a GNSS main antenna, a GNSS auxiliary antenna, a vibration sensor and an angular velocity sensor. And the alarm feedback unit comprises a horn and an alarm lamp. Real-time monitoring of the rock-fill concrete pouring process is realized, it is ensured that the pouring path meets the construction requirements, the dam construction quality is improved, alarm feedback control of the rock-fill concrete pouring process is realized, and the alarm feedback unit is timely and quantitatively provided for on-site constructors.

The invention belongs to the technical field of environmental protection and slope protection reinforcement of water conservancy projects of thermal power plants, and provides a slope protection and protection method for a downstream soft rock enrockment area of a stepped concrete faced rockfill dam, and the slope protection and protection method comprises a first horizontal drainage body arranged from a preset upstream and downstream enrockment area boundary to the surface of a downstream dam slope; the second horizontal drainage body is arranged from the preset upstream and downstream rockfill area boundary to the surface of the downstream dam slope, and the third horizontal drainage body is arranged from the preset upstream and downstream rockfill area boundary to the surface of the downstream dam slope; the boundary of the upstream and downstream rockfill areas is an inclined line from the slope top to the slope bottom; the first horizontal drainage body, the second horizontal drainage body and the third horizontal drainage body are arranged at the preset height positions correspondingly, and the seepage loads in different dam height ranges and the seepage characteristics of downstream soft rock damming materials are fully considered through the design of the three-layer horizontal drainage body structure; a multi-layer smooth drainage channel can be provided for upstream reservoir water leakage and dam face infiltration rainwater at the same time, and the overall stability of a downstream dam slope is effectively guaranteed.

The invention relates to hydraulic conductive asphalt concrete as well as a preparation method and application thereof. The preparation method comprises the following steps: weighing asphalt, screened mineral aggregate and a conductive material; the screened mineral aggregate is dried and stored; mixing the screened mineral aggregate, the steel slag and the steel fiber in a mixing pot at high temperature; adding asphalt, and continuously heating and mixing; and adding mineral powder and graphite, stirring, and filling the mixture into a mold for molding, thereby completing the preparation of the hydraulic conductive asphalt concrete. The hydraulic conductive asphalt concrete has a better electric heating characteristic, and can be electrified and heated in an extremely low temperature environment in winter to increase the temperature of an asphalt concrete panel and reduce the risk of cracking caused by uneven or too low temperature; the conductive asphalt concrete for the hydraulic engineering can meet the strict anti-seepage and mechanical property requirements in a water retaining building scene of the hydraulic engineering, can be used as an asphalt concrete panel construction material, and can effectively reduce low-temperature shrinkage stress and avoid local stress concentration after being electrified and heated; and a long-term and repeated temperature field adjustment and improvement effect can be achieved.

The invention provides a rock-fill dam concrete panel joint structure and a construction method thereof, and belongs to the technical field of water conservancy and hydropower engineering. The concrete panel joint structure comprises a hydraulic engineering ECC material layer, an induction joint and an in-joint sealing layer. Wherein the hydraulic engineering ECC material layer is arranged in a joint of the concrete panel; the inducing joint is arranged in a mortar cushion layer and an emulsified asphalt layer below the middle of the joint of the concrete panel; and sealing the inducing joint by adopting a sealing material to form an in-joint sealing layer. The stress of the concrete panel is induced to the designated position by arranging the inducing joint, the structural joint is arranged at the position, and meanwhile, the hydraulic engineering ECC material is adopted as the joint filling material, so that the cracking risk of the concrete panel is greatly reduced, and the anti-seepage reliability of the joint structure is improved. Moreover, the concrete panel joint structure is suitable for continuous pouring construction of a rock-fill dam panel, is also suitable for panel repairing construction, and has a wide application prospect.

The utility model relates to the technical field of concrete face dam protection, and discloses a concrete face dam protection structure which comprises a concrete face dam body, and the concrete face dam body is sequentially provided with a side slope, a buffering slope and an upstream slope from top to bottom. A reinforcing assembly; the reinforcing assembly is arranged on the side slope and used for preventing side slope chippings from falling off. A buffer assembly; the buffering assembly is arranged on the surface of the upstream slope and used for protecting the upstream slope. The reinforcing assembly comprises fixing plates, the fixing plates are arranged on the two sides of the side slope, reinforcing frames are arranged on the fixing plates, the reinforcing frames are connected to the fixing plates through bolts in a threaded mode, a polystyrene foam plate adheres to the surface of the side slope, four sets of drainage grooves are formed in the surface of the side slope, and drainage channels are formed in the buffer slope. Through the reinforcing assembly, deformation is prevented, and broken stones are prevented from falling off after concrete cracks.

The invention discloses a design and construction method for a deep covering layer high gravelly soil core wall rock-fill dam, and belongs to the technical field of design and construction of water conservancy and hydropower engineering structures. According to the design and construction method for the deep and thick covering layer high gravel soil core wall rock-fill dam, the contradiction between settlement deformation space-time evolution of upstream rock-fill materials and gravel soil core wall materials can be well solved, and the longitudinal crack risk of the dam crest is reduced. According to the design and construction method, a fissure type weathered sand slate stock ground, an alteration zone dominant granite stock ground and an engineering area excavation material are used as dam body rockfill material sources, zoning control over the fine particle content of rockfill materials is used as a main line, and humidification deformation of upstream rockfill materials is dispersed into the dam filling process; the unloading effect of humidification deformation and the loading effect of dam filling are overlapped to achieve self-adaptive adjustment of dam body stress deformation, and finally the high gravelly soil core wall rockfill dam built on the deep covering layer is obtained, wherein the upstream rockfill material adapts to settlement deformation of the gravelly soil core wall material, and the longitudinal fission trend of the dam crest meets the requirement.

The present invention relates to a method for treating deep soft soil in an earth-rock dam foundation and an earth-rock dam. The method for treating deep soft soil in an earth-rock dam foundation comprises determining a dam foundation excavation surface, wherein the dam foundation excavation surface is generally trough-shaped, the trough bottom surface corresponds to the dam anti-seepage body and extends to below the soft soil layer, and the trough walls on the upper and downstream sides of the trough bottom surface are slopes inclined downward toward the trough bottom; before excavating the soft soil in the dam foundation, vibratory crushed stone piles are first constructed on the upper foundation upstream and downstream of the dam anti-seepage body, the pile holes pass through the dam foundation excavation surface, and only holes are drilled above the dam foundation excavation surface without backfilling with crushed stone, and only crushed stone is backfilled below the dam foundation excavation surface, forming crushed stone piles below the dam foundation excavation surface; if the soft soil below the excavation surface is not treated, the soft soil slope cannot be stabilized and construction is also very difficult; and generally, excavating deep soft soil is very difficult, so only after treatment with crushed stone piles can the stability of the excavated slope be guaranteed, and the core anti-seepage body of the dam can be placed on a non-soft soil foundation after excavation.