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33results about How to "Strong waterproof" patented technology

Modified asphalt compound waterproof rolling material

The invention relates to the technical field of building materials, in particular to a modified asphalt compound waterproof rolling material with high strength and difficult aging. The modified asphalt compound waterproof rolling material consists of a modified asphalt waterproof layer, an upper surface layer and a lower surface layer, wherein a non-woven fabric layer is arranged in the modified asphalt waterproof layer, adhesive layers are arranged on the upper surface and the lower surface of the non-woven fabric layer, and a filler is arranged in the modified asphalt waterproof layer. Due to that the asphalt waterproof layer is adopted as a main material of the rolling material, the rolling material has stronger waterproof property and convenient construction. The modified asphalt layer can not only effectively utilize a large number of industrial, civil and other waste plastic and other items, but also play the environmental protection role and be characterized by low production cost and long working life. The product is applicable to the leak-proof building materials of a variety of top floors, and can greatly reduce the cost of a construction project and realize simple operation, thereby being applicable to popularization and having broad market application prospects.
Owner:陶春森

Foundation pit bracing water stopping structure with support pile and three-axis stirring pile arranged in cased drilling manner

Provided is a foundation pit bracing water stopping structure with a support pile and a three-axis stirring pile arranged in a cased drilling manner. The support pile is constructed on the outer side of a foundation pit; the stirring pile is constructed in a support pile area in a three-axis stirring manner; and the support pile directly cuts a pile body on the three-axis stirring pile for construction, and the whole bracing water stopping structure is formed. The three-axis stirring pile is large in power, and can perform stirring in strong-weathered rock and the above stratum. Compared with a conventional small diameter cement stirring pile, the beneficial effects of being small in number of lap joints, good in water stopping effect, high in construction efficiency, high in stratum adaptability and the like are achieved; and compared with a jet grouting pile, the beneficial effects that the water stopping effect is good, and price is low are achieved. According to the foundation pit bracing water stopping structure with the support pile and the three-axis stirring pile arranged in the cased drilling manner, the support pile and the three-axis stirring pile are combined together, construction is performed in the manner that the support pile and the three-axis stirring pile arranged in the cased drilling manner, the stratum condition can be improved, the problem of hole collapse of the support pile is effectively solved, a water stopping effect better than that of the conventional stirring pile and the jet grouting pile can also be achieved, meanwhile the occupied space of a supporting structure is saved, and the water stopping capacity of an existing pile-in-row bracing water stopping structure is enhanced.
Owner:SHENZHEN GEOTECHN INVESTIGATION & SURVEYING INST

Multi-layer bonding composite three-dimensional fabric foundation pit waterproof curtain supporting structure and construction method thereof

The invention relates to the technical field of building construction, in particular to a multi-layer bonding composite three-dimensional fabric foundation pit waterproof curtain supporting structureand a construction method thereof. The multi-layer bonding composite three-dimensional fabric foundation pit waterproof curtain supporting structure comprises a plurality of cast-in-situ bored piles and foundation pit connecting parts arranged among the cast-in-situ bored piles and used for connecting the cast-in-situ bored piles; the plurality of cast-in-situ bored piles are uniformly arranged atintervals; and each foundation pit connecting part comprises a strip-shaped foundation trench and a reinforcement cage arranged in the strip-shaped foundation trench, and a plurality of layers of composite three-dimensional fabrics are horizontally arranged in the reinforcement cage; The piles are connected into a whole through the composite three-dimensional fabrics and reinforced concrete, thestrength is improved, and the water stop performance is enhanced; the water stopping capability is improved by about 30%; and the supporting strength of the cast-in-situ bored piles is improved by 15%-20%; Compared with a large-volume concrete structure, the used composite three-dimensional fabric has the advantages that the use amount of concrete is saved, the construction cost is reduced by about 10%, and the environment is improved; and epoxy asphalt is used as an adhesive of each layer of three-dimensional fabric, so that the composite three-dimensional fabric is endowed with relatively strong water stop performance and bonding stability.
Owner:NANTONG UNIVERSITY

Grooving reinforcing structure for ultra-deep underground diaphragm wall in coastal reclamation area and construction method thereof

ActiveCN113026768AWeak stabilityWeak sealing performanceExcavationsBulkheads/pilesSlurry wallSleeve valve
The invention provides a grooving reinforcing structure for an ultra-deep underground diaphragm wall in a coastal reclamation area and a construction method thereof. The structure comprises an upper reinforcing structure within the range of 30m and a lower reinforcing structure within the range of 30m or below. The upper reinforcing structure is reinforced and formed through a three-axis mixing pile, the quality is good, and a good reinforcing and water stopping effect is achieved. Within the range of 30m or below, due to the fact that the water and soil pressure of the coastal reclamation area is large, the reinforcing effect cannot be guaranteed through a single groove wall reinforcing manner, a high-pressure jet grouting pile is adopted for reinforcing firstly, and then the defects possibly existing in the high-pressure jet grouting pile are overcome through sleeve valve grouting. The grooving reinforcing structure combines the advantages of the three-axis mixing pile, the high-pressure jet grouting pile and sleeve valve pipe grouting, a good groove wall reinforcing effect can be achieved during underground diaphragm wall construction, the grooving reinforcing structure is particularly suitable for grooving reinforcing of the ultra-deep underground diaphragm wall in the coastal reclamation area, and the groove wall reinforcing method is safe, effective, economical and reasonable.
Owner:CHINA CONSTR FIRST BUILDING GRP CORP LTD +1

Active protection method for eliminating influence of stratum settlement on existing building

The invention discloses an active protection method for eliminating the influence of stratum settlement on an existing building, and belongs to the technical field of engineering construction protection. The active protection method comprises the following steps that 1, a protection range which is not affected by stratum settlement around the building needing to be protected is determined; 2, a circle of vertical drill holes are constructed at intervals near the critical position of the protected range around the protected building; 3, grooves are formed between the adjacent vertical drill holes in a milling manner, and milling groove sections and protective layer groove bodies are formed; 4, replacing and filling are carried out on slurry in the grooves from bottom to top by adopting a ductile waterproof material to form replacing and filling sections; and 5, after the ductile waterproof material is solidified and formed, end-to-end connection is carried out, and a circle of active protection layer with high ductile performance and high waterproof performance is formed near the range of a excavation influence area of a newly-built project. According to the method, the building can be prevented from being influenced by the surrounding stratum settlement, and the influence of additional stress generated by the stratum settlement and the uneven settlement on the building is prevented. If the technology is adopted around a newly-excavated foundation pit, the influence of the stratum settlement caused by excavation on the surrounding building can be reduced, and therefore the active protection effect on the existing building is achieved.
Owner:CHINA UNIV OF MINING & TECH

Roadbed freezing injury treatment device capable of vertically partitioning and gradually reducing pressure

In combination with frost heaving and thaw collapse diseases of railroad beds in seasonal frozen soil areas in China, a railroad bed freezing injury treatment device capable of releasing frost heavingforce step by step in a vertical partition mode is provided. The device is composed of a reinforced concrete supporting box body, a plurality of reinforced concrete movable panels, a low-friction-coefficient isolation layer, a spring set, an embedded sleeve with a thread, a guide rod with a thread, an embedded sleeve and a rubber protection layer. The panel of the device is designed in a layeringand blocking mode, the number of blocks can be flexibly determined according to specific use conditions, the panel block design can release frost heaving force in a blocking mode in the soil body freezing process to enable springs to store energy, and when the soil body melts, the energy storage springs can push movable plates at the corresponding melting positions to move outwards to extrude thesoil body, and the roadbed rigidity is improved; the subgrade thaw collapse amount is reduced, the improvement effect is more obvious, the conditions that the whole panel inclines, so that the devicefails, frost heaving force is not released in time and the like are avoided, and the working performance and reliability of the device are improved.
Owner:LANZHOU JIAOTONG UNIV

Plastic four-grid septic tank

The invention discloses a plastic four-grid septic tank which comprises a cylinder body, a left sealing plate, a right sealing plate, fixing ribs, a first partition plate, a second partition plate, athird partition plate, a water inlet, a cleaning opening, an inspection opening, an exhaust opening and a water outlet, the cylinder body is divided into a first septic tank, a second septic tank, a third septic tank and a fourth septic tank by the first partition plate, the second partition plate and the third partition plate; the first partition plate, the second partition plate, the third partition plate, the left sealing plate and the right sealing plate are connected with the cylinder body through fixing ribs, a circle of thermal fuse wires are arranged on the outer surfaces of the fixingribs, and the fixing ribs are connected with the cylinder body through the thermal fuse wires in a hot melting mode. According to the plastic septic tank, the fixing ribs and the thermal fuses are inhot melting connection with the cylinder body, so that the water isolation capability is high, the sealing performance is improved, meanwhile, the fixing ribs play a role in supporting, the structural strength is improved, and the problems that an existing plastic septic tank with a complex structural form is not qualified in quality, and a spliced part is prone to leakage are solved.
Owner:HEBEI TONGTAO PIPE CO LTD

Construction method of prefabricated assembly and cast-in-place concrete topping for irrigation channels

ActiveCN112681257BEnhanced digging and cutting abilitySmooth slopeSoil-shifting machines/dredgersIrrigation ditchesTetrafluoroethyleneArchitectural engineering
The invention relates to a construction method for prefabricated assembly and cast-in-situ concrete topping of irrigation canals, comprising steps: step 1, use an excavator to excavate at the design position, when excavating, first use the loose soil arranged at the front end of the excavator chassis The device loosens the pre-excavated trench soil, and then cooperates with the U-shaped bucket to easily excavate the U-shaped trench foundation pit; step 2, after the bottom of the U-shaped trench is compacted, the cushion layer is laid, and the cushion layer is laid between the soil bodies with concrete. The upper part of the layer is sprayed with polytetrafluoroethylene coating. The beneficial effects of the present invention are: the groove can be formed at one time under the construction conditions of hard soil and frozen soil, the slope surface is smooth and flat, the slope top is straight and beautiful, and no manual trimming is required; the prefabricated U-shaped groove can be produced in an assembly line, and the production efficiency Higher; reduces the workload of on-site construction; reduces the demand for hoisting accuracy and reduces the difficulty of construction; solves the problems of water permeation in the connection gap of prefabricated U-shaped grooves, weak connection strength of traditional concrete topping and concrete channels, and easy falling off of topping.
Owner:ZHEJIANG UNIV CITY COLLEGE

Grouting foundation structure

The invention discloses a grouting foundation structure. The grouting foundation structure comprises a grouting pipe body, wherein an anchoring pipe is arranged in the grouting pipe body; the top part of the anchoring pipe extends out of the outer side surface of the top of the grouting pipe body; the bottom of the anchoring pipe penetrates through a connecting pipe; the connecting pipe is transversely arranged on the grouting pipe body, and the connecting pipe extends out of the two outer side surfaces of the grouting pipe body; a left supporting member and a right supporting member are vertically arranged on the connecting pipe respectively; the bottoms of the left supporting member and the right supporting member penetrate through the bottom of the grouting pipe body; a bottom protecting plate is arranged at the bottom of the grouting pipe body; the bottom protecting plate and the grouting pipe body are connected detachably. According to the grouting foundation structure, the frictional force between the grouting pipe and an anchoring rod hole is effectively increased, so that the effect of preventing the grouting pipe being ejected outside by pressure is realized, strong reinforcing performance is realized, the construction cost is reduced correspondingly, the water sealing effect is very strong, the strength of the foundation is higher, and the mixing mode of the grout is easy to control.
Owner:NORTH CHINA UNIV OF WATER RESOURCES & ELECTRIC POWER +2

A trough reinforcement structure of ultra-deep underground diaphragm wall in coastal reclamation area and its construction method

An ultra-deep underground diaphragm wall trough reinforcement structure in a coastal reclamation area and its construction method, the structure includes an upper reinforcement structure within a range of 30m and a lower reinforcement structure below the range of 30m, and the upper reinforcement structure is reinforced with triaxial stirring piles. Good, it has better reinforcement and water-stop effect; in the range below 30m, due to the high water and soil pressure in the reclamation area near the sea, the reinforcement effect cannot be guaranteed by using a single groove wall reinforcement method, so the high-pressure rotary jet pile is used for reinforcement first, and then the sleeve valve is used for reinforcement. The grouting makes up for the possible defects of the high-pressure rotary jetting pile. The invention combines the advantages of the three-axis stirring pile, the high-pressure rotary jet pile and the grouting of the sleeve valve pipe, and can achieve a better reinforcement effect of the groove wall during the construction of the underground continuous wall, and is especially suitable for the ultra-deep underground continuous wall in the coastal reclamation area. Reinforcing the wall into a groove is a safe, effective, economical and reasonable method for reinforcing the groove wall.
Owner:CHINA CONSTR FIRST BUILDING GRP CORP LTD +1

Construction method for prefabricated assembly of irrigation channel and cast-in-place concrete coping

ActiveCN112681257AEnhanced digging and cutting abilitySmooth slopeSoil-shifting machines/dredgersIrrigation ditchesArchitectural engineeringAssembly line
The invention relates to a construction method for prefabricated assembly of an irrigation channel and a cast-in-place concrete coping. The construction method comprises the steps that 1, an excavator is used for excavation at a designed position, during excavation, a soil loosening device arranged at the front end of a chassis of the excavator is used for scarifying pre-excavated groove soil, and then a U-shaped groove foundation pit is easily excavated in cooperation with a U-shaped excavator bucket; and 2, a cushion layer is arranged after the bottom of a U-shaped groove is compacted, the cushion layer is laid between soil bodies through concrete, and a polytetrafluoroethylene coating is sprayed to the upper portion of the cushion layer. The construction method has the beneficial effects that the groove can be formed at a time under the construction condition of hard soil frozen soil, the slope surface is smooth and flat, the slope top is straight and attractive, and manual finishing is not needed; the prefabricated U-shaped groove can be produced through an assembly line, and the production efficiency is high; the on-site construction workload is reduced; the requirement for hoisting precision is reduced, and the construction difficulty is lowered; and the problems that a connecting gap of the prefabricated U-shaped groove is permeable, a traditional concrete coping and a concrete channel are weak in connecting strength, and the coping is prone to falling off are solved.
Owner:ZHEJIANG UNIV CITY COLLEGE

Grouting foundation structure

The invention discloses a grouting foundation structure. The grouting foundation structure comprises a grouting pipe body, wherein an anchoring pipe is arranged in the grouting pipe body; the top part of the anchoring pipe extends out of the outer side surface of the top of the grouting pipe body; the bottom of the anchoring pipe penetrates through a connecting pipe; the connecting pipe is transversely arranged on the grouting pipe body, and the connecting pipe extends out of the two outer side surfaces of the grouting pipe body; a left supporting member and a right supporting member are vertically arranged on the connecting pipe respectively; the bottoms of the left supporting member and the right supporting member penetrate through the bottom of the grouting pipe body; a bottom protecting plate is arranged at the bottom of the grouting pipe body; the bottom protecting plate and the grouting pipe body are connected detachably. According to the grouting foundation structure, the frictional force between the grouting pipe and an anchoring rod hole is effectively increased, so that the effect of preventing the grouting pipe being ejected outside by pressure is realized, strong reinforcing performance is realized, the construction cost is reduced correspondingly, the water sealing effect is very strong, the strength of the foundation is higher, and the mixing mode of the grout is easy to control.
Owner:NORTH CHINA UNIV OF WATER RESOURCES & ELECTRIC POWER +2
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