80results about How to "Strong adaptability to deformation" patented technology

The invention discloses a high rock-fill dam membrane anti-seepage body on a deep coverage layer and a construction method of the high rock-fill dam membrane anti-seepage body. The membrane anti-seepage body is composed of a concrete protection layer, a geomembrane anti-seepage layer, a flexibility cushion layer and a transition layer. The concrete protection layer is a cast-in-place fiber concrete layer for a reserved cross joint and a vertical joint and located on a surface layer to protect a geomembrane. The geomembrane anti-seepage layer is a two-cloth and one-membrane composite geomembrane and is located in the middle to play a role of preventing seepage. The flexibility cushion layer is a polyurethane pervious concrete layer and located at the bottom of the anti-seepage body to support the geomembrane and to transmit and disperse water loads. The rough granule transition layer is arranged between the flexibility cushion layer and a rock-fill dam body. The construction method comprises the technical steps of filling and building the transition layer, pouring the flexibility cushion layer, paving the composite geomembrane, pouring the concrete protection layer and the like. The membrane anti-seepage body can keep stable on a high rock-fill dam slope, the ability of adapting to deformation of a coverage layer dam foundation and the dam body is high, the structural form is simple, construction is fast, and the anti-seepage problem of the high rock-fill dam on the deep coverage layer can be effectively solved.

The invention relates to an annular frictional rotating shockproof supporting base. The annular frictional rotating shockproof supporting base comprises an upper cover plate, a rotating rigid body, an annular frictional wall, a buffer spring, a suspending steel block, and a base; the lower part of the upper cover plate is provided with a convex hemispheroid, the upper part of the rotating rigid body is provided with a groove, and the convex hemispheroid is meshed and contacted with the groove; the center of the lower part of the rotating rigid body is provided with a spherical groove, and the spherical groove is in supporting connection with the hemispheroid to form rotating contact in every direction; the overall side face of the rotating rigid body is provided with a spherical face and forms a frictional contact with the annular frictional wall; when the rotating rigid body is rotated, the rotating rigid body rubs the annular frictional wall to dissipate the earthquake energy; one ring at the bottom part of the rotating rigid body is provided with a vertical buffer spring, and the other end of the buffer spring is connected with the suspending steel block; the suspending steel block is placed in a block opening of the base, and the thickness of the suspending steel block is less than the height of the block opening; when the rotating rigid body is rotated to a certain position, the buffer spring can upwards raise up so as to drive the suspending steel block to upwards move; when the buffer spring is contacted with the block opening, the buffer spring is stretched to limit the movement of the rotating rigid body.

The invention relates to a circular-arched steel-corrugated-plate bridge and culvert structure. A circular-arched bridge and culvert with a reinforced concrete structure is not adaptable to foundation deformation and uneven settlement well, damages caused by earthquakes cannot be buffered effectively, construction cost is high and construction period is long. Bases are arranged at the lower portion of the bridge and culvert structure. Single-span or multi-span bridge arches are arranged on the upper portions of the bases, are steel-corrugated-plate circular arches and are formed by assembly and fixation of steel corrugated plates through bolts. The radius of each steel-corrugated-plate circular arch is 2.1648m, central angle is 135 degrees, arc curvature radius is 4.33m, single span is 4m, and rise height is 1.3365m. A circular-arched bridge and culvert with the structure has axial corrugations and excellent mechanics characteristics, stress strain caused by load is simultaneously distributed axially and radially, stress concentration of the load is effectively dispersed, advantages of a steel structure are exploited better, and wide application prospect is provided.

The invention discloses a polytetrafluoroethylene modified asphalt waterproof coiled material and a preparation method thereof. Petroleum asphalt is used as a base material, then polytetrafluoroethylene, a filler and an auxiliary agent are added, and the above-mentioned materials are subjected to extrusion, calendering and molding so as to prepare the polytetrafluoroethylene modified asphalt waterproof coiled material. The polytetrafluoroethylene modified asphalt waterproof coiled material provided by the invention has a great number of excellent comprehensive economic and technical characteristic indicators such as excellent weatherability, high tensile strength, high elongation percentage, aging resistance, strong adaptability to deformation, a wide temperature adaptation range, strong and high bonding performance, a long service life, no pollution, easy construction and low cost, and can be used in waterproof projects like passenger dedicated line bridge deck concrete, subways, roads, ports and wharfs and large-scale underground projects.

The invention provides a pavement structure of a cement concrete bridge deck. An epoxy asphalt concrete layer (2) and an SMA13 asphalt concrete layer (3) are arranged above the cement concrete bridgedeck (1) in sequence; the cement concrete bridge deck (1) is cohered with the epoxy asphalt concrete layer (2) by a waterproof bonding layer (4); and the epoxy asphalt concrete layer (2) is cohered with the SMA13 asphalt concrete layer (3) by a bonding layer (5). The scheme of the invention improves the high temperature stability and anti-fatigue property of the bridge deck pavement layer, and obtains complex balance on aspects such as low temperature crack resistance, deformation follow performance, use wear and the like of structure; in the scheme of the invention, the deformation adaptability is strong, and the fatigue life span is also very good; the combination scheme is technologically feasible, and has higher cost performance and the best combination property under the premise of nolarge differences among all indexes.

The invention discloses an asphalt resin-based cold regenerant and a regenerated mixture. The cold regenerant is composed of a resin emulsion, cement, a phase agent having dissolving and mixing effects for waste asphalt and the rubber emulsion, an aggregate surface hydrophobic agent and a curing agent of the resin emulsion. The resin emulsion, the phase agent and the cement are used as main components. Each of the components co-increases cementing property for the aggregate. When the cold regenerant is in use, a binding material is a multi-phase system formed by intertwining dissolved and activated regenerated asphalt, the cured resin emulsion and a cement hydration product. The system is stable and has good binding property, and can overcome the main damage problems of high temperature softening deformation, low temperature brittle rupture and stripping of the binding interface eroded by water, of a single asphalt binding material. The regenerated mixture formed by the cold regenerant can be directly paved by vibration without roll compaction. Application efficiency is relatively high while cost is relatively low. A formed road surface has high strength and small temperature sensitivity, and can resist ageing and water erosion.

The invention discloses a waterproof binding material. According to the invention, inorganic materials such as silicate cement, quartz sand and the like are adopted as base materials. Active compound permeable crystalline masterbatch, polymer and various other auxiliary materials are blended into the base material, such that a powdery waterproof material is obtained. The composite waterproof system provided by the invention is composed of the waterproof binding material and a macromolecular polyethylene polypropylene waterproof coiled material. Two surfaces of the macromolecular polyethylene polypropylene waterproof coiled material are composed of high-density polypropylene filament non-woven fabrics. A main water proof layer is prepared from the process of adding an anti-aging agent, a stabilizing agent, an auxiliary agent, and the like into linear low-density polyethylene. According to the invention, a composite waterproof system with an optimal waterproof effect is selected from various possible binding materials and waterproof coiled materials. As a result of testing, the composite waterproof system provided by the invention has excellent permeation resistance, excellent water-pressure resistance, excellent corrosion resistance, excellent aging resistance, excellent self-repairing capacity and excellent environment protecting characteristic.

The invention discloses a waterproof and drainage structure of a vertical shaft in an underground workhouse and a construction method for the waterproof and drainage structure. The waterproof and drainage structure of the vertical shaft comprises a main transformed cavern and a wire outlet vertical shaft which are connected by a wire outlet gallery, wherein the wire outlet vertical shaft consists of a vertical shaft base plate and a pitshaft of the wire outlet vertical shaft; the pitshaft of the wire outlet vertical shaft is connected with the periphery of the vertical shaft base plate and comprises first-phase pneumatically placed concrete and second-phase lining concrete; a waterproof and drainage layer is arranged between the first-phase shooting concrete and the second-phase lining concrete and comprises a pervious pipe, a buffer layer and a waterproof plate. The construction method comprises the following steps: digging and supporting the vertical shaft; laying the waterproof and drainage layer; casting the second-phase lining waterproof concrete. According to the waterproof and drainage structure and the construction method thereof disclosed by the invention, the diversion and drainage and the collection of palisades leaked water can be effectively realized, the cracking of secondary lining concrete is reduced, and a good waterproof and impervious effect is realized. In addition, by the adoption of the structural form, system draining holes can be reduced, and random draining holes are formed in places where the leakage is serious. The waterproof and drainage structure has the advantages of safety, environment friendliness, convenience for construction, high comprehensive benefit and the like.

The invention relates to a building expansion joint anti-seeping structure, which comprises a sealing material, an upstream face filling material, a middle embedded waterstop belt, a downstream face filling material and left and right steel bar frameworks, wherein the left and right steel bar frameworks are symmetrically arranged at the two sides of the original structure telescopic seams; waterstop strips which expand when meeting water are arranged between the left and right steel bar frameworks and old concrete; left and right steel bar frameworks are respectively arranged in positions, near the original structure expansion joint, of the left and right steel bar frameworks; a left installing cavity is formed between the two left steel bar frameworks; a right installing cavity is formed between the two right steel bar frameworks; the left and right parts of the middle embedded waterstop belt are arranged in the left and right installing cavities; left and right new concrete is cast by using the left and right steel bar frameworks as the foundation; the downstream face filling material jacks a position between the sealing material and the middle embedded waterstop belt. The building expansion joint anti-seeping structure has the advantages that the connection with the concrete is firm and reliable; the leakage blocking effect is good; the service life is long; the deformation capability is high; the concrete expansion joint seepage problem is solved.

The invention discloses a radial resistance controllable supporting structure suitable for a large-deformation tunnel and a supporting method, and belongs to the technical field of tunnel engineeringconstruction. The structure comprises a primary spraying concrete layer, an inflatable cushion and a steel plate, wherein the primary spraying concrete layer is arranged on the surface of a surrounding rock in a tunnel, the inflatable cushion is fixed on one side of the steel plate, one side of the steel plate, provided with the inflatable cushion, is arranged close to the primary spraying concrete layer, an arch springing of the steel plate is fixed to the surrounding rock, the inflatable cushion is inflated to a safe pressure value, and a secondary lining is arranged on one side of the steelplate, which is not contacted with the inflatable cushion; the inflation cushion is provided with an inflation valve and a constant pressure deflation valve. According to the invention, the supporting structure can adapt to an ultra-large-deformation tunnel and a non-uniformly-deformed large-deformation tunnel, the surrounding rock pressure is uniformly released, the safety of the tunnel is improved, and the cost is reduced.

The invention relates to an antiviral healthy plant water-based paint, which is prepared from the following components in parts by weight: 60-80 parts of modified acrylic emulsion, 10-30 parts of water, 5-10 parts of antiviral plant microspheres, 10-20 parts of pigment filler and 1-3 parts of auxiliaries, wherein the modified acrylic emulsion is obtained by modifying an acrylic emulsion with 5-methyl furfuryl amine; and the antiviral plant microspheres are microspheres prepared by taking an extract of an antiviral plant wormwood as an effective component. The anti-virus healthy plant water paint is prepared by using the modified acrylic emulsion as a matrix, the anti-virus plant microspheres as anti-virus effective components and the pigments and fillers as additives, and the water paint is non-toxic, environment-friendly, good in water resistance and high in stability, contains anti-virus components of natural plants, has a relatively high anti-virus effect, and the anti-virus coating can achieve a lasting anti-virus effect, and is very suitable for places such as hotels, hospitals and the like which are high in virus content and need to resist viruses.

The invention discloses a double-component polyurethane water-proof paint for a ship. The double-component polyurethane water-proof paint is formed by mixing a material A and a material B, wherein the material A is prepolymer which is synthesized from polyalcohol and excess polyisocyanate; and the material B consists of the following materials in percentage by weight: 50 percent of curing agent, 20 percent of chain extender, 20 percent of auxiliary agent and 10 percent of filler. The double-component polyurethane water-proof paint has the advantages of high tensile strength, high adaptability to deformation of a base layer, superior low-temperature performance and the like.

An efficient heat insulating material for a dam concrete surface is disclosed. The material is rigid polyurethane foam which includes an A component and a B component. The A component includes, by weight, 5-38 parts of polyether polyol, 0.01-1 part of epoxy resin, 0.01-1 part of a first catalyst, 0.01-1 part of a second catalyst, 0.1-3 parts of rigid polyurethane foam silicone oil AK-158, 7.00-9.00 parts of a first foamer, 0.1-1 part of a second foamer, 1-10 parts of a first fire retardant, and 0.10-1.00 part of a second fire retardant. The B component includes 55.00-57.00 parts by weight of diphenylmethane diisocyanate. The heat insulating material has the advantages of excellent thermal insulation property, good moisture-resisting and heating-resisting properties, good durability, good flame retardancy and strong deformation adaptability. The invention also discloses a method for preparing the heat insulating material.

The invention discloses a hollow structure wall winding pipe double-end socket sealing structure and a sealing test method. The end of a winding pipe is inserted into a double-end socket joint, sealing connection is achieved through sealing rings, the sealing rings comprise the first sealing ring and the second sealing ring, a gap is arranged between the first sealing ring and the second sealing ring to form a closed test cavity, a test channel is arranged on the double-end socket joint, and the test cavity communicates with the external environment of the double-end socket joint through the test channel. By arranging the two sets of sealing structures, double flexible sealing to the connecting position is achieved, the integrity keeping effect of sealing of the connecting position is good, meanwhile, a simple checking structure is formed through the test cavity and the test channel, the sealing performance of the whole connecting position can be obtained only by checking the sealing performance of the test cavity, the operation process is simple and efficient, accuracy is high, the hollow structure wall winding pipe double-end socket sealing structure and the sealing test method are especially suitable for sealing performance checking of a pipeline construction site, and the defects existing in a conventional sealing test method are overcome.

A grid plate and braided rope combined sealing structure comprises a grid plate set making contact with the side wall, wherein a micron-sized groove is machined in the end, making contact with the side wall, of the grid plate set, and the groove is used for containing micron-sized fiber braided ropes. The section size of the fiber braided ropes is larger than the depth of the groove, an elastic thin plate is arranged at the other end of the grid plate set, an elastic element used for providing pre-tightening pressure is arranged on the elastic thin plate, and the elastic element is arranged ona grid plate base sleeve. According to the invention, the gap between the grid plate set and the thermally deformed side wall is blocked by utilizing the elastic deformation of the fiber braided ropes, so that the sealing leakage amount is reduced; the fiber braided ropes can also compensate gaps caused by deformation retardation of the elastic thin plates.

The invention discloses a heat-reflective interior wall coating. The heat-reflective interior wall coating comprises the following components in parts by weight: 30-40 parts of epoxy resin, 15-25 parts of polyacrylamide, 10-20 parts of solid ceramic microspheres, 5-15 parts of solid glass microspheres, 1-10 parts of nano-filler, 3-8 parts of coupling agent, 2-7 parts of wetting agent, 1-5 parts of thickening agent, 3-9 parts of defoaming agent and 1-8 parts of anti-settling agent. The solid ceramic microspheres and the solid glass microspheres are used as fillers and have thermal insulation and reflection functions, and therefore, the heat-reflective interior wall coating disclosed by the invention has the effects of temperature reduction and heat preservation. Coatings formed by the heat-reflective interior wall coating have the characteristics of good elasticity, good adaptability to deformation of base courses, good heat insulation effect, contamination resistance and the like and are suitable for the field of decoration engineering of interior walls of residences and hotels.

The invention discloses a high-pressure thin-wall large-diameter extrusion oil tank which comprises an oil tank cylinder, a supporting mandrel, a piston and an end cover. One end of the oil tank cylinder of a cylindrical structure is connected with the end cover. The supporting mandrel is arranged on the central axis of the oil tank cylinder. A displacement sensor is installed in an inner cavity of the supporting mandrel and used for measuring the oil storage amount in the oil tank. The supporting mandrel is sleeved with the piston in a sealed manner. The oil tank cylinder is divided into an oil cavity and a gas cavity through the piston. The piston is provided with two Y-shaped sealing rings for isolating oil from gas and matched with the inner wall of the oil tank cylinder. The end cover is a cover body protruding outwards and is welded to the oil tank cylinder in a stepped manner. Double guidance is set for the inner ring and the outer rings of the piston so that the oil storage amount of the oil tank can be increased. Due to the fact that the outer rings of the piston are the Y-shaped rings, the capacity of the piston adapting to deformation of the cylinder is high, the sealing manner is adopted for effectively compensating for seal failure caused by deformation of the cylinder, and the oil tank has the good sealing effect when working under the conditions of high vibration and high impact magnitude.

The invention discloses low-temperature-resistant asphalt concrete and a preparation method thereof. The low-temperature-resistant asphalt concrete is prepared from the following substances: coarse aggregate, fine aggregate, mineral powder, asphalt and diatomite. The low-temperature-resistant asphalt concrete disclosed by the invention has outstanding ageing resistance and fatigue resistance; thelow-temperature-resistant concrete has the advantages that good temperature resistance is kept under high and low temperature conditions, cracking of the low-temperature concrete is avoided, excellentfatigue resistance and loosening and cracking resistance are achieved especially in low-temperature seasons and weather alternation seasons of a seasonal freezing area or a cold temperature area, theservice life of the concrete is prolonged, and the preparation is convenient.