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22results about "Earth-fill dams" patented technology
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Reinforcement structure for earth-rock dam to prevent over-standard overflow and construction method thereof
The application discloses a soil-rock dam reinforcing and enhancing structure for preventing over-standard overflow dam break and a construction method thereof. The structure comprises a soil-rock dam filling body, a vertical anti-seepage core wall arranged in the soil-rock dam filling body, and a composite high-strength fiber three-dimensional membrane arranged on the surface of the dam slope after regulation. The membrane body is unfolded along the slope surface and is reinforced by a pressing plate type fixing anchor bolt and a fiber membrane three-dimensional rivet. The row-to-row spacing of the fixing anchor bolt is 20-50 cm, so that the composite membrane is tightly attached to the dam body. The rigid structure and the flexible protection material are organically combined, the dam body's erosion resistance and durability are significantly improved while the flood discharge capacity is ensured, the construction method is simple, the cost is low, and the method is suitable for flood control reinforcement and safe operation of various soil-rock dams.
Owner:SINOHYDRO FOUND ENG
Cutoff wall structure for earth-rock dam weir and construction method thereof
ActiveCN117721788BEarth-fill damsRock-fill dams
This invention discloses a seepage barrier wall structure and construction method for earth-rock dams. The structure and method utilize a stepped seepage barrier wall to eliminate gaps between adjacent layers of concrete seepage barrier surfaces, resulting in improved seepage prevention. The structure comprises concrete seepage barrier surfaces, seepage barrier extensions, a soil foundation, and reinforcing steel bars. Multiple layers of concrete seepage barrier surfaces are placed on the side of the soil foundation, arranged in a stepped manner along the height of the side of the soil foundation. The overlap height between adjacent layers of concrete seepage barrier surfaces is 0.3-2m. Multiple reinforcing steel bars are embedded within each concrete seepage barrier surface. The length of each reinforcing steel bar is equal to the height of the concrete seepage barrier surface, and the reinforcing steel bars are equidistantly arranged along the width of the concrete seepage barrier surface. One end of the seepage barrier extension is located on the side of the bottom layer of the concrete seepage barrier surface.
Owner:解振珉
Anti-splitting protection devices for easily splittable rock strata, and construction methods for curtain grouting of dam toe slabs.
PendingCN122082395Aavoid splittingavoid shockFoundation engineeringEarth-fill damsPressure groutingGrout
This invention discloses a protective device for easily splittable rock strata and a method for curtain grouting construction of dam toe slabs. It changes the conventional practice of directly constructing high-pressure sections after the low-pressure sections are completed. Instead, after grouting the low-pressure sections, a protective device for easily splittable rock strata is first installed to form a solid isolation layer. This layer directly wraps and protects the easily splittable, low-strength soft rock sections, blocking the pressure transmission and grout impact of the lower high-pressure grouting. This prevents splitting and collapse of the grouted soft rock sections from the source, protecting the fragile rock structure above the dam foundation from grouting disturbance and damage. By implementing a "protection first, construction later" approach as a fixed procedure in the construction process, the risk of grout seepage from the upper part and abnormal ash consumption during the grouting of the lower high-pressure sections is reduced, ensuring that the high-pressure sections can be successfully grouted under the designed pressure value.
Owner:SINOHYDRO BEREAU 10 CO LTD
Rockfill dam copper waterstop protection device
ActiveCN224338174Unot destroyDoes not affect constructionClimate change adaptationEarth-fill damsStructural engineeringWaterstop
The utility model discloses a kind of copper water stop protection devices of rock-fill dam, including multiple mounting seats and protective cover, each the mounting seat is supported on the dam face of rock-fill dam, and all be located on the side of copper water stop on dam face, each the mounting seat is arranged along the gradient direction of dam face with interval, the uppermost mounting seat is fixed on the top surface of rock-fill dam, each the protective cover is respectively installed on adjacent mounting seat, and each the protective cover is sequentially arranged along the gradient direction of dam face, and cover and set in the upper of copper water stop.This rock-fill dam copper water stop protection device does not damage the dam face structure of rock-fill dam, does not affect pouring concrete construction and dismounting convenient of other side of copper water stop.
Owner:SINOHYDRO BUREAU 8 CO LTD
Rockfill stockyard rapid construction method, special net cage and fork loader
The application discloses a kind of rockfill into warehouse fast construction method and its special net cage box and fork loader, the net cage box of the rockfill into warehouse fast construction method includes: net cage box main body, the net cage box main body is suitable for with fork loader semi-rigid connection;Bottom door, the bottom door is arranged in the bottom of the net cage box main body;Transmission assembly, the transmission assembly is connected with the bottom door transmission, the transmission assembly is suitable for with the door opening drive device on the fork loader transmission connection, the door opening drive device is suitable for by the transmission assembly drive bottom door movement to adjust the opening of the bottom door.According to the net cage box of rockfill into warehouse fast construction method of the embodiment of the application has the advantages that the damage to the already cast layer is avoided, the rockfill rate is high, the grade is reasonable, the stacking efficiency is high, and the adaptability is good.
Owner:TSINGHUA UNIVERSITY
Panel concrete active crack prevention method
ActiveCN118420377BEarth-fill damsComplex mathematical operationsTemperature controlArchitectural engineering
The application discloses a kind of panel concrete active crack prevention methods, comprising: step 1: according to the compressive strength of panel concrete, expansion starting time, expansion amount design index requirement, using engineering raw materials to carry out concrete mix proportion optimization design of magnesium oxide expansive agent and conductive phase material, determine the key parameters of magnesium oxide expansive agent content, fly ash content, conductive phase material content and concrete test piece curing temperature influence concrete expansion performance;Step 2, along the direction parallel to panel, a pair of electrodes is arranged in the concrete, and the electrode is connected with voltage regulating device;Step 3, temperature sensor is arranged in the concrete;Step 4, voltage regulating device and temperature sensor are electrically connected with controller respectively, so as to regulate and control the internal temperature of panel concrete;The application improves the temperature distribution of concrete, so that it has the ability of active temperature control, and then regulates and controls the expansion history of panel concrete under real service environment, realizes the purpose of active crack prevention of panel concrete.
Owner:CHINA THREE GORGES CORPORATION
Homologous composite soil material for precast framework of silt dam-3D printing and application
The application discloses a kind of for silt dam prefabricated framework-3D printing homologous composite soil and application, the composite soil is by loess, three-toed horse red soil constitutes soil matrix, sand, straw, geopolymer and biological macromolecular thickening agent are auxiliary material, prepared by using the same soil source.This application realizes material performance complementation by homologous preparation, solves the adaptability problem of silt dam prefabrication and 3D printing material from the root, relies on unique raw material combination and preparation process optimization composite soil comprehensive performance, significantly improves silt dam structure stability and durability.The composite soil can be prepared prefabricated module and 3D printing shell respectively, and the two cooperate with each other, can effectively guarantee the realization of silt dam comprehensive function, is applicable to silt dam prefabricated framework and 3D printing material application scene.
Owner:黄河流域水土保持生态环境监测中心 +3
A rockfill dam protection device and a concrete faced rockfill dam with the same
This invention relates to the field of rockfill dam protection technology, and discloses a rockfill dam protection device and a concrete-faced rockfill dam having the same, comprising: a support frame; several mounting plates arranged side by side on the support frame, several arc-shaped energy dissipation plates arranged side by side on the mounting plates, the energy dissipation plates having multiple first energy dissipation holes, and elastic reset mechanisms provided at both ends of the energy dissipation plates; a sliding rail mechanism for installation on the concrete-faced rockfill dam, the sliding end of the sliding rail mechanism being connected to the support frame, and a buoyancy plate fixedly connected to the sliding end of the sliding rail mechanism, the buoyancy plate being located in the middle of the several mounting plates. This invention, through the design of the arc-shaped energy dissipation plates, the first energy dissipation holes on the plate surface, and the elastic reset mechanism at the connection, forms a highly efficient passive energy dissipation, elastic buffering, and adaptive reset mechanism through the synergistic effect of the three, fundamentally reducing the risk of panel cracking and leakage.
Owner:CHANGJIANG RIVER SCI RES INST CHANGJIANG WATER RESOURCES COMMISSION
Structure of a spoil bank dam
A kind of abandoned slag field dam structure, including stone dam body, bottom stone transition layer, concrete facing layer and large stone drainage layer are sequentially arranged from top to bottom in bottom of stone dam body, composite geomembrane layer is laid in stone transition layer inside;Water surface stone transition layer and water surface drainage body are sequentially arranged from inside to outside on the water surface of stone dam body, composite geomembrane layer and shotcrete facing layer are arranged from inside to outside in water surface stone transition layer inside;Water inlet of water release culvert in the middle position of the top of stone dam body is provided with anti-impact wear-resistant shotcrete layer in the contact position of stone dam body;The upstream of stone dam body is provided with dam body anti-impact wear-resistant shotcrete in the contact part with bank slope.The abandoned slag field dam structure provided by the present application can solve the problems of waste of resources and pollution of the environment, has strong anti-permeation and anti-erosion ability, high water discharge capacity and good environmental protection.
Owner:CHINA GEZHOUBA GRP INT ENG
Under-dam drainage structure of a leach field
This application discloses a drainage structure beneath the initial dam of an ash storage yard, comprising an initial dam, a slope-adhering drainage layer located on the slope front of the initial dam, and a drainage cushion layer located at the slope toe. A drainage pipe is installed at the bottom of the initial dam, with the inlet end of the drainage pipe extending into the drainage cushion layer and the outlet end of the drainage pipe connected to a recovery tank. The beneficial effects of this application are: compared to a normal initial dam drainage layer, this drainage structure ensures that ash water and seepage from the ash storage yard are not discharged or leaked, while also lowering the seepage line within the initial dam, ensuring dam stability. The overall structure is simple, reliable, easy to construct, and low in cost.
Owner:CHINA ELECTRIC POWER CONSTR ENG CONSULTATION ENVIRONMENTAL ENG COMPA
Rockfill dam crack resistance reinforcing device based on rockfill concrete
The present application relates to the technical field of rockfill dam construction, and discloses a rockfill dam crack-resisting reinforcing device based on rockfill concrete, which comprises a rockfill dam, a plurality of reinforcing members arranged transversely and embedded in layers in the rockfill dam, and a core wall and rockfill bodies on both sides of the core wall, wherein the reinforcing member comprises a core wall segment reinforcing body in the middle and rockfill body segment reinforcing bodies at both ends, the elevation of the core wall segment reinforcing body is higher than that of the rockfill body segment reinforcing bodies, and the rockfill body segment reinforcing bodies and the core wall segment reinforcing body are connected together through longitudinally arranged connecting members. The present application has the beneficial effect that the reinforcing groove body is arranged in multiple sections, and when the core wall and the rockfill bodies are rolled in different regions, the transversely arranged reinforcing plates are displaced downward individually, and the whole reinforcing groove body does not tilt.
Owner:GUIZHOU UNIV +1
A foldable light surface collecting maintenance integrated platform attached to a dam panel slip form
This invention discloses a foldable, lightweight integrated platform for surface finishing and curing attached to a dam panel slipform. The platform is hinged to the slipform, enabling it to fold and flip. It can be directly integrated with the slipform, reducing the overall volume to achieve overall slipforming and avoiding repeated disassembly and assembly. The telescopic folding fence and sunshade / rain shelter can be almost completely folded and stored, eliminating the need for secondary installation after the slipform has risen 2-3 meters. This does not restrict the normal slipforming process and significantly reduces bolt connections and on-site welding work. When used for single-panel pouring in skip-slot construction, the platform can be folded and stored as a whole, and directly hoisted to the next panel with the slipform, eliminating the need for disassembly, transportation, and reassembly. This greatly simplifies the process and improves the efficiency of multi-panel construction.
Owner:SINOHYDRO BEREAU 10 CO LTD
An impervious structure and earth-rock dam
ActiveCN224395494Uplay a supporting roleGuaranteed reliabilityEarth-fill damsRock-fill damsStructural engineeringEmbankment dam
The utility model provides a kind of anti-seepage structure and earth-rock dam, including original cut-off wall, pedestal is set on original cut-off wall, and the high cut-off wall of setting on the pedestal, the structural joint is formed between the pedestal with the original cut-off wall, and the structural joint is filled with flexible waterstop.The utility model can improve economy and environmental protection.
Owner:CHANGJIANG SURVEY PLANNING DESIGN & RES CO LTD
Reinforcing structure and reinforcing method of a diaphragm wall with enlarged foot
The application provides a reinforced structure and a reinforcing method for a core wall and an enlarged foot, and belongs to the field of water conservancy and hydropower engineering reinforcement. By limiting the outer side of the connecting structure to be an outward convex curved surface, stress concentration at the connecting part can be significantly reduced, stress distribution is more uniform, and crack resistance is enhanced. By setting the lower reinforcing layer and the upper reinforcing layer as structures with different stiffness, stable load conduction can be achieved, and the crack resistance of the reinforced structure is improved. By setting a flexible reinforcing layer and limiting its material, the tensile and deformation resistance of the reinforced structure can be improved, the formation of cracks and leakage channels can be prevented, and the anti-seepage performance can be greatly optimized. The reinforced structure provided by the application can effectively avoid the crack problem caused by stress concentration after reinforcing the connection between the core wall and the enlarged foot, and has good anti-seepage effect.
Owner:CHINA NUCLEAR XINHUA HUANGLONG PUMPED STORAGE POWER GENERATION CO LTD +2
Asphalt concrete panel structure for extremely hot or cold and construction method thereof
This invention discloses an asphalt concrete panel structure and construction method for use in extreme heat and cold conditions. The structure comprises, from bottom to top, a leveling and bonding layer, an impermeable layer, and a nano-temperature control layer. During construction, an asphalt mixture is prepared using asphalt, coarse aggregate, fine aggregate, and filler. Then, epoxy resin is selected as the matrix material, and polyamide and nanomaterials are added to prepare a nano-temperature control material. Subsequently, the prepared asphalt mixture is laid using a paver, and then compacted to form the leveling and bonding layer and the impermeable layer. Finally, the nano-temperature control material is applied to the surface of the impermeable layer using a scraper to form the nano-temperature control layer. This solution solves the problems of high-temperature slope flow and low-temperature freezing failure that occur in existing technologies under extreme weather conditions.
Owner:NORTHWEST ENGINEERING CORPORATION LIMITED
An anti-seepage and water-stopping structure for the slope surface of an earth-rock dam
ActiveCN224299897UIncrease longitudinal slip resistanceImprove stabilityClimate change adaptationEarth-fill damsSoil scienceGeomembrane
The utility model discloses a kind of earth-rock dam slope surface seepage prevention water stop structure, applied to earth-rock dam dam foundation, concrete layer, clay base layer, seepage prevention membrane, clay covering layer, sand layer, pebble layer are sequentially arranged from inside to outside on the slope surface of the dam foundation, several blocking pits are arranged on the surface of the clay base layer along height direction horizontally, the seepage prevention membrane is laid in the surface of the clay base layer and the blocking pit;The utility model has the beneficial effects that: the utility model selects clay base layer and clay covering layer with stronger adhesion in the upper layer and lower layer material of geomembrane, blocking pit is designed on the surface of clay base layer simultaneously, thereby effectively increasing the longitudinal anti-slippage ability of seepage prevention membrane, improving dam body stability, worthy of wide range of use.
Owner:INNER MONGOLIA TAILI ENG CONSTR CO LTD +1
Formwork structure for construction of rockfill concrete dam
Owner:CHINA CONSTR EIGHT ENG DIV CORP LTD
Rockfill dam cushion material integrated construction equipment and method
PendingCN122082428AImprove construction efficiencyreduce waiting timeFoundation engineeringEarth-fill damsScreedArchitectural engineering
This invention discloses an integrated construction equipment and method for the subgrade material of a rockfill dam. The equipment includes an engineering vehicle 1, a paving and leveling mechanism 2, a hydraulic compaction mechanism 3, a follower vehicle 4, a traction frame 5, a cantilever mechanism 6, and a formwork mechanism 7. The engineering vehicle 1 drives the paving and leveling mechanism 2 at its front end forward, dispersing the subgrade material to both sides. Subsequently, the hydraulic compaction mechanism 3 at its rear compacts the subgrade material through high-frequency vibration. The follower vehicle 4, connected to the engineering vehicle 1 via the traction frame 5, moves synchronously. The cantilever mechanism 6 on the follower vehicle 4 erects the formwork mechanism 7 above the slope. The first formwork 72 of the formwork mechanism 7 supports the subgrade material working area, and the second formwork 73 supports the mortar layer, thus simultaneously completing the integrated operation of subgrade material paving, leveling, compaction, and slope mortar layer support. This construction equipment significantly improves construction efficiency, and through mechanized and precise control, it significantly enhances construction quality and safety.
Owner:CHINA GEZHOUBA GROUP CO LTD
An up-and-down staggered concrete dam structure and a construction method thereof
This invention discloses a staggered concrete dam structure and its construction method, belonging to the field of water conservancy and hydropower engineering technology. The structure includes a gravity dam body, comprising alternating layers of rockfill concrete and normal concrete arranged vertically from bottom to top to form a staggered layered composite structure. The gravity dam body has a normal concrete cushion layer at the bottom and a normal concrete top layer at the top. An upstream normal concrete anti-seepage layer is provided on the water-facing side, and a downstream normal concrete surface layer is provided on the backwater side. This design effectively controls the overall heat of hydration of the dam, simplifies temperature control measures, and reduces overall costs, while fully ensuring the anti-seepage and shear resistance performance between dam layers, achieving a balanced optimization of cost reduction, efficiency improvement, and project safety.
Owner:CHINA POWER CONSRTUCTION GRP GUIYANG SURVEY & DESIGN INST CO LTD
A parameterized design method for asphalt concrete core wall dam
The application provides a parameterized design method of an asphalt concrete core wall dam, and relates to the technical field of intelligent design of hydroelectric and water conservancy projects, and comprises the following steps: S1, data input and processing; S2, axis topology orientation and coordinate construction; S3, core skeleton construction; S4, base generation; S5, cascade partition generation; S6, dam top structure generation; S7, slope excavation above the dam top generation; S8, zigzag road network generation on both banks; and S9, all-element engineering quantity statistics. The application reconstructs the design process of the asphalt concrete core wall dam, and provides a full life cycle digital solution scheme from design to construction for the hydroelectric and water conservancy project.
Owner:CHINA POWER CONSRTUCTION GRP GUIYANG SURVEY & DESIGN INST CO LTD
An intelligent integrated construction system and method for rockfill concrete dam
The application provides a kind of rockfill concrete dam intelligent integrated construction system and method, related dam equipment technical field includes: lightweight intelligent operation platform, for executing intelligent deployment step and whole-process collaborative control step;Stone pretreatment and transfer system, for executing digital material preparation step, complete stone cleaning air drying, three-dimensional information acquisition and vertical-horizontal seamless transfer;Horizontal intelligent transport system, for executing stacking step, realize stone global coverage type distribution.The beneficial effects of the application are: by adopting double camera linkage snapshot cooperation SAM image large model, realize the automatic gradation detection of 30-100cm large particle size rockfill;Aided by unmanned aerial vehicle aerial photography and laser scanning fusion verification, form the quality closed loop of prediction-implementation-verification-optimization;Bridge type travelling crane hoist cooperates dynamic scheduling algorithm to realize global accurate distribution, landing point error ±5mm, concrete distribution system is based on rockfill gap data to implement differential pouring, uniformity error is controlled within 5%.
Owner:CHINA CONSTR EIGHTH ENG BUREAU HUAZHONG CONSTR CO LTD