54results about How to "Strong anti-seepage" patented technology

The invention relates to a lightweight total-bearing body frame structure, which comprises a side wall frame, a roof frame, a front wall frame, a rear wall frame and an interlayer frame. The lightweight total-bearing body frame structure is made of an aluminum alloy or magnesium alloy material, and is riveted with lockbolts so as to ensure that the weight of the body frame is greatly reduced while the whole strength of the body is not lower than the conventional steel body frame. The parts forming the body frame has a unique design, so that well balance between weight reduction and strength maintenance can be achieved. The lightweight total-bearing body frame structure saves more energy than the conventional steel frame.

The invention relates to a car frame connecting structure comprising a side window longitudinal beam, an upright column, a stiffening beam, a top cap longitudinal beam and a top cap horizontal beam, wherein the side window longitudinal beam is riveted with the upright column through a medium corner; the side window longitudinal beam is riveted with the lower part of the stiffening beam; the upright column is riveted with the stiffening beam; the upper part of the stiffening beam is riveted with the top cap horizontal beam through a large corner; and the top cap longitudinal beam is riveted with the top cap horizontal beam through the medium corner. The car frame connecting structure is made of aluminium alloys or magnesium alloys. The invention achieves the effect on reducing weight approximate to a half under the conditions of same or similar strength of steels by adopting the car frame connecting structure made of the aluminium alloys or the magnesium alloys, thereby greatly reducing the weight of a car body without reducing the strength; and in addition, the invention has the advantages of reduced manufacturing and operating cost, long service life and more energy saving and environmental protection, prevents the stress concentration caused by adopting a welding mode through riveting connection and has firm connection without generating cracks.

The invention discloses a soil cement long wall continuous arch structure for slope reinforcement. The structural form has high slip-resisting capacity and high economic efficiency, and is very suitable for slip-resisting reinforcement treatment in soft soil slopes and soft foundation filling engineering in the engineering fields of buildings, traffic, water conservancy, mines and the like. The long wall continuous arch structure comprises an arc-shaped wall and a slip-resisting wall, wherein both the slip-resisting wall and the arc-shaped wall are formed by engaging dry spray stirring piles or wet spray stirring piles. In the working mechanism, a long wall continuous arch embedded into a slope body or a soft soil foundation passes through a most dangerous slip surface, soil is retained by using a stirring pile arc-shaped wall, the stirring pile arc-shaped wall is used for transferring horizontal push force to a stirring pile slip-resisting wall, and the stirring pile slip-resisting wall is used for finally transferring horizontal push force to a lower soil layer. By adopting the structure, the compression resistance and shearing resistance of soil cement can be brought into full play, and pile body tensile stress is avoided.

The invention relates to seepage-resistant cement prepared from raw materials of, by weight: 5-8% of fluorine-containing polyacrylate emulsion powder with fluorine content of 1-3%, 2-3% of rosin with a specification of 100-200 meshes, 3-5% of sodium silicate, 3-5% of calcium hydroxide, 1-2% of alum, 1-2% of sodium dodecyl sulfate, 10-15% of phosphoaluminate cement, and balance of Portland cement. The cement provided by the invention is advantaged in high seepage resistance and high binding strength. With the cement, seepage resistance of cement mortar can be substantially improved, and bending strength and compressive strength of the cement mortar are improved.

The invention belongs to the technical filed of civil construction underground engineering, and provides a wall sinking construction method to make a wall body to sink under control. The wall sinkingconstruction method is characterized in that retaining structures are firstly formed on the two sides, corresponding to a groove body, of the wall body, then a section of wall body with a certain height is manufactured on the ground, and jacks and a supporting pile body are installed on the two sides of the bottom of the wall body to reinforce the rock and soil mass under the supporting pile body.The wall body is supported by the jacks and the supporting pile body, the bottom of the wall body is suspended to form an excavation working space with a certain height, and in the space, an underwater excavator is controlled remotely to excavate rock and soil in the groove body layer by layer; elastic support with rollers is sandwiched between the retaining structures on the two sides of the wall body and the groove body to transfer and balance rock and soil pressure, and thus wall sinking frictional resistance is controllable; and under control of the jacks, the wall body sinks for a section and is connected with a higher section on the ground. When the construction method is used for foundation pit supporting, the outer wall of a basement and spatial steel support can be sunken and putin place at the same time to form a safe and economical foundation pit supporting system; and the construction method also can be used for building side slope retaining walls and underground diaphragm walls.

The invention discloses a melamine modified resin adhesive for flax chip shaving boards, and a preparation method thereof. The resin adhesive comprises, by weight, 1230-1600 parts of formaldehyde, 1050-1300 parts of melamine, 40-80 parts of diglycol, 30-80 parts of caprolactam and 700-1000 parts of water. Melamine is used to substitute urea in order to be used for synthesizing melamine-formaldehyde resin, so the colorless and semitransparent properties of resin are reserved, and the resin adhesive also has the advantages of suitable storage period, controllable cost, improved water and heat resistance, and solidification at normal temperature.

The invention discloses a degradable and environment-friendly anti-seepage film for an oil field and a preparation method of the degradable and environment-friendly anti-seepage film. The degradable and environment-friendly anti-seepage film is prepared from the components by weight as follows: polylactic acid, poly (butyleneadipate-co-terephthalate), plant fibers, glycerin or epoxidized soybean oil and inorganic filler. The preparation method comprises specific preparation steps as follows: weighing the polylactic acid, poly (butyleneadipate-co-terephthalate), the plant fibers, glycerin or the epoxidized soybean oil and the inorganic filler; adding the raw materials to a high-speed mixer for uniform mixing; adding the mixture to a hopper of a twin-screw extruder, and obtaining modified resin after brace granulating; placing the modified resin in a drying machine for full drying, and putting the dried modified resin in a cast sheet machine to obtain the degradable, environment-friendly and anti-seepage film for the oil field. The film can be completely biodegraded in the nature after used, degradation products meet EN13432 standards for compostable and are non-toxic and harmless to soil, and the technical standard for environment requirements is high. The preparation method is simple in process, easy to control and suitable for industrial mass production.

The invention relates to a connection structure of a vehicle frame. The connection structure of the vehicle frame is located below a vehicle window on the side of a vehicle body frame and above a side cabin door; lower side window longitudinal beams and upper side window longitudinal beams are connected among stand columns; short-waist stand columns are connected between the lower side window longitudinal beams and the upper side window longitudinal beams; the above members are connected through middle corners; inner skins are arranged on sides of the stand columns, the short-waist stand columns, the lower side window longitudinal beams and the upper side cabin door longitudinal beams; reinforcing beams are arranged on the other sides of the inner skins away from the members; and all the members are made of aluminum alloy or magnesium alloy and are connected through rivets. The invention ensures that the intensity of the connection structure of the vehicle frame is not lower than that of the traditional connection structure of the steel vehicle frame, lightens the weight of the vehicle frame and prolongs the service life of the vehicle frame.

The invention relates to a floating ball type one-way drainage valve which is capable of preventing stored water leakage and discharging ground water in time and is applicable to a slope or a retaining wall of hydraulic engineering. The floating ball type one-way drainage valve consists of an upper valve body, a lower valve body, a floating ball and a drainage pipe, wherein the upper valve body has a funnel shape, a smooth camber neck part, and a top part connected with the drainage pipe, the lower valve body has a cylindrical shape and a bottom part connected with the drainage pipe, the floating ball is a hollow ball and has a straight bar attached onto the surface, and the upper valve body and the lower valve body are connected with each other through screws. The floating ball moves up and down in the valve body, and the straight bar stirs the sludgy on the bottom part of the valve body to prevent blockage. The upper and lower valve bodies share the same diameter, the diameter of the drainage pipe is smaller than that of the floating ball, and the sum of the length of the diameter of the floating ball and the length of the straight bar is greater than the inside diameter of the valve body. When the impounded level is higher than the ground water level, the floating ball moves up to block the drainage hole. When the impounded level is lower than the ground water level, the floating ball moves down and the ground water enters the valve body and is discharged through the drainage pipe. The floating ball type one-way drainage valve facilitates the stability of the slope and the retaining wall, and has a simple structure, high rigidity, high sensitivity and reliability, and is resistant to sludge and rust, low in cost and high in durability.

The invention relates to the technical field of prefabricated concrete square culverts, in particular to anti-permeability and corrosion-resisting prefabricated concrete square culverts. The anti-permeability and corrosion-resisting prefabricated concrete square culverts are characterized in that a laying process of the square culverts comprises the following steps that (1) the prefabricated concrete square culverts are processed; (2) grooves are dug and a cushion layer is arranged; (3) a mortar layer is laid; (4) the square culverts are hoisted; (5) the adjacent square culverts are installed; (6) the adjacent square culverts are fixed; (7) cavities between the adjacent square culrverts are filled; and (8) the subsequent square culverts are sequentially installed and the mounting grooves of the square culverts are backfilled, so that the whole installation process is finished. The anti-permeability and corrosion-resisting prefabricated concrete square culverts have the advantages of being simple in process, simple in structure, high in anti-permeability capacity, high in corrosion resistance and the like.

The invention provides an outer wall clay sculpture construction method and mortar adopted in using method. The outer wall clay sculpture construction method comprises the steps of manufacturing mortar, positioning patterns, installing a skeleton, conducting painting with lime at a time, conducting painting again, forming a prototype, conducting polishing and fine trimming, coloring the patterns and the like. The mortar adopted by clay sculpture comprises grey factice, sand, cement, brown sugar and glutinous rice flour, wherein the weight ratio of the grey factice to the sand to the cement to the brown sugar to the glutinous rice flour is 40-60:40-60:6-15:0.8-1.2:0.8-1.2. The grey factice is a viscous layer which is formed on the surface of clean water into which shell powder with gravel filtered out is soaked for more than fifteen days. According to the construction method, a supporting piece and a connecting wire are matched to form the skeleton, so that the internal clay sculpture structural connectivity is effectively improved, and the phenomena of disengagement, color fading and the lie are not likely to be generated. The main raw material adopted by the mortar is the shell powder, the grey factice formed after the shell powder is soaked is high in adhesive property, hardness, impermeability and water resistance, and meanwhile the glutinous rice flour in the mortar can improve the impermeability and the water resistance of the mortar.

The invention relates to a cement-soil mattress layer, which is prepared from the following substances in percentage by mass: 8 to 18 percent of cement, 0 to 10 percent of water and the balance of clay. A construction method in a hydraulic engineering composite foundation comprises the three steps of: excavation of a foundation pit, laying of the cement-soil mattress layer, and foundation construction. The structure is simple and compact in layout, convenient to construct and low in cost; the effect of adjusting stress distribution between pile soil can be achieved, and the defect that a traditional gravel mattress layer becomes a seepage channel is overcome due to the fact that a permeability coefficient of cement soil is small, and good seepage prevention capacity is achieved.

Disclosed are a construction device for an underground anti-seepage curtain and a construction method. A wall body formed by mutual lap joint of groove sections and grouting or mixing piles is poor incontinuity and not strict in anti-seepage performance, the lap joint process of the piles is complicated, and partial lap joint pile materials are repeated and wasted. The construction device is composed of a sawing and drilling machine and a sawing and drilling rod (17), the lower portion of a driving drill rod (6) on the sawing and drilling machine is in threaded connection with the sawing anddrilling rod, the outer surface of the sawing and drilling rod is annularly provided with a set of cylindrical structures of sawteeth (18) at equal intervals, the sawteeth are arranged counterclockwise and inversely spirally, the distance between every two adjacent sawteeth up and down is 5-15 cm, and the included angle between the sawteeth and the horizontal plane is 30 degrees. The constructiondevice and the construction method are used for the underground anti-seepage curtain.

The invention relates to water seepage prevention cement which is prepared from the following raw materials in percentage by weight: 5%-8% of fluorine-containing polyacrylate latex powder, 2%-3% of rosin of 100-200 meshes, 3%-5% of sodium silicate, 3%-5% of calcium hydroxide, 1%-2% of alums, 1%-2% of sodium dodecyl sulfate, 10%-15% of sulphate aluminum cement and the balance of silicate cement, wherein the fluorine content of the fluorine-containing polyacrylate latex powder is 1%-3%. The water seepage prevention cement prepared by the invention has water seepage prevention function.

Provided is a recoverable foundation pit support structure with pull-out holes. An inner cavity of a first plate and an inner cavity of a second plate are through in the vertical direction. The left side and the right side of the first plate are concave inwards to form first grooves. The left side and the right side of the second plate are provided with first convex heads protruding outwards. The first plate and the second plate are detachably connected through the first grooves and the first convex heads. The front vertical face and the rear vertical face of the first plate and the front vertical face and the rear vertical face of the second late are provided with the through pull-out holes. The adjacent plates are connected through concave-convex embedment and are further reinforced through bolt connection, and support strength is high. By means of convex-concave embedment connection, the overall seepage prevention of the structure is high, and obvious seams do not occur. The structure can be applicable to most foundation pit projects, is good in applicability and high in integrity. The plates can be recycled, cost of foundation pit support is greatly reduced, and the structure is low in carbon and environmentally friendly.

The invention discloses a construction device and a construction method of a lock catch type steel pipe pile cofferdam, The device is a cofferdam ( which is in an axial direction parallel mold ) whichis formed by connecting a plurality of locking notch steel pipe piles in parallel, C-shaped female locking notches and T-shaped profile steel are welded to the outer side walls of the two sides of the steel pipe piles along the axis directions of the steel pipe piles correspondingly. According to the device and the method, the structure construction speed is fast, the manufacturing and installingprocess are simple, large mechanical equipment is not needed, and floating facilities are not needed; a male and female joint is adopted by a steel pipe pile joint, so that the number of lock catchesis reduced, and the water leakage probability of the cofferdam is reduced; the water plugging effect can be achieved by simply adopting bentonite processing and the like in the lock catches, the recycling of the steel pipe piles can be ensured, steel is saved, and economy and affordability are achieved.

The invention provides a preparation method of anti-seepage and anti-corrosion concrete. The anti-seepage and anti-corrosion concrete is prepared from the following components in parts by weight: 60-200 parts of broken stone, 50-150 parts of fine sand, 20-60 parts of calcium chloride, 120-240 parts of Portland cement, 10-20 parts of magnesium silicate, 12-20 parts of active calcium silicate, 4-15parts of aluminum tripolyphosphate, 6-12 parts of strontium oxide, 4-10 parts of white mud powder, 3-5 parts of sodium phosphate, 3-12 parts of polyvinyl alcohol, 4-10 parts of epoxy resin and 2-12 parts of potassium tripolyphosphate. By adding polyvinyl alcohol, epoxy resin, potassium tripolyphosphate and butyl methacrylate, the concrete has strong anti-seepage and anti-corrosion functions, steelbars in the concrete can be effectively prevented from being corroded, the service life of the concrete is prolonged, and by adding lace fibers and carbon fibers, the anti-cracking performance of theconcrete can be improved.

The invention belongs to the technical field of seepage-proofing reinforcement of water conservancy foundations, and particularly relates to a circulating pressure-maintaining multi-turn grouting method for dam seepage-proofing reinforcement. The method comprises the following steps that the position of a permeable layer needing to be disposed is determined; holes are distributed in the position,close to the upstream face, of the top of a dam, and then a grouting hole is drilled through a drilling machine; a grouting pipe is arranged in the grouting hole, a hole sealing pipe is shorter than the grouting pipe, and an isolation block is arranged below the hole sealing pipe; an expansion material is injected into the hole sealing grouting pipe for hole sealing and pressure maintaining; and acirculating pressure-maintaining multi-turn grouting method is used for grouting of permeable high polymers, and the grouting pressure is 0.5-2Mpa. According to the method, construction is convenientand fast, the construction period is short, disturbance to the dam is small, the seepage-proofing effect is good, durability is high, full permeation and diffusion of grout are facilitated, subjectivity and experience of the grouting process can be effectively reduced, and grouting construction can be guided.

The invention relates to the technical field of prefabricated concrete square culverts, in particular to anti-permeability and corrosion-resisting prefabricated concrete square culverts. The anti-permeability and corrosion-resisting prefabricated concrete square culverts are characterized in that a laying process of the square culverts comprises the following steps that (1) the prefabricated concrete square culverts are processed; (2) grooves are dug and a cushion layer is arranged; (3) a mortar layer is laid; (4) the square culverts are hoisted; (5) the adjacent square culverts are installed; (6) the adjacent square culverts are fixed; (7) cavities between the adjacent square culrverts are filled; and (8) the subsequent square culverts are sequentially installed and the mounting grooves of the square culverts are backfilled, so that the whole installation process is finished. The anti-permeability and corrosion-resisting prefabricated concrete square culverts have the advantages of being simple in process, simple in structure, high in anti-permeability capacity, high in corrosion resistance and the like.

The invention provides a cement-based mining spraying agent, which is mainly used for spraying mine walls, and comprises a solid material, water and an adhesive, wherein, the solid material is one of the following materials: the mixture of cement and ground calcium carbonate, the mixture of cement, ground calcium carbonate and fly ash and the mixture of cement and fly ash, wherein, the solid material comprises the following components by the weight ratio: 10% to 40% of cement, 0% to 90% of ground calcium carbonate and 0% to 80% of fly ash; the adhesive is polyvinyl alcohol glue or polyvinyl alcohol modified adhesive with the weight being 1% to 5% of the solid material. The mining spraying agent has the advantages of convenient construction, good strength and little possibility of drying crack and shedding after being sprayed on the mine wall, and lower cost.

The invention discloses sound-absorbing and sound-insulating mortar and a preparation method thereof. The technical scheme is that the sound-absorbing and sound-insulating mortar is prepared from the following raw materials in parts by weight: 60 parts of cement, 45 parts of quartz sand, 18-30 parts of sound-insulating filler, 21-32 parts of sound-absorbing filler and 9-21 parts of additive, The sound-insulating filler comprises cellulose, acrylate and epoxy resin. The weight ratio of the cellulose, the acrylate and the epoxy resin are as follows: 5 -9 parts of cellulose, 6 -10 parts of acrylate and 7 -11 parts of epoxy resin. The sound-absorbing filler comprises perlite, glass beads, polyphenyl particles, perlite, glass beads and polyphenyl particles. The weight ratio of the perlite, the glass beads and the polyphenyl particles are as follows: 6 -10 parts of perlite, 7 -10 parts of glass beads and 8 -12 parts of polyphenyl particles. The sound-absorbing and sound-insulating mortar and the preparation method thereof have the beneficial effects that the mortar can block a part of sound while greatly absorbing the sound, the sound-insulating effect of the mortar is improved, and the living environment of people is remarkably improved.

The invention discloses a hollow brick. The hollow brick comprises a hollow brick body, which is formed by burning and moulding sludge. The hollow holes in the hollow brick body are in a blind hole structure, the hollow holes on the two sides of the hollow brick body are asymmetrically distributed, and the depth of each hollow hole is 4 to 6 mm. The hollow brick body is in a cubic shape, the length of the hollow brick body is 90-250 mm, the width is 85-125 mm, and the height is 55-120 mm. The hollow brick body is formed by burning sludge and moreover is provided with asymmetrical blind holes on the two sides of the brick body, so the hollow brick is environment-friendly, the waste material namely sludge generated in the households and factories is fully utilized, and furthermore the hollow brick has the advantages of solid structure, strong water penetration resistant performance, and good soundproof and heat insulation effect.

The invention discloses a melamine modified resin adhesive for flax chip shaving boards, and a preparation method thereof. The resin adhesive comprises, by weight, 1230-1600 parts of formaldehyde, 1050-1300 parts of melamine, 40-80 parts of diglycol, 30-80 parts of caprolactam and 700-1000 parts of water. Melamine is used to substitute urea in order to be used for synthesizing melamine-formaldehyde resin, so the colorless and semitransparent properties of resin are reserved, and the resin adhesive also has the advantages of suitable storage period, controllable cost, improved water and heat resistance, and solidification at normal temperature.

The invention discloses a manufacturing technology for an energy-saving environmentally-friendly building with a dome. The manufacturing technology includes the steps that after a PVC membrane material is tailored, a sphere is made through high-speed friction and attachment, and the lower end of the membrane material is wrapped by a pulling rope; 2, the spherical membrane material is fixed to an annular foundation of the building; 3, the membrane material is blown into a preset shape through an air blower, and after air pressure becomes constant, spraying is performed for a first layer of polyurethane; 4, steel bar labels are inserted into the first layer of polyurethane as a thermal-insulation layer; 5, spraying is performed for several layers of polyurethane to cover the steel bar labels, and the heads of the steel bar labels are exposed; 6, according to the steel bar labels, steel bars are bound; 7, concrete is sprayed. The manufacturing technology used for the energy-saving environmentally-friendly building with the dome is suitable for civil buildings, warehouse buildings, large gymnasiums and others.

The invention provides a processing method of polyvinyl chloride coated tarpaulin, and relates to the technical field of tarpaulin. The processing method comprises the following steps that (1) size isprepared, specifically, polyvinyl chloride paste resin, dioctyl phthalate, polyurethane, a viscosity reducer and tributyl phosphate are mixed and beat to obtain the size A; (2) cloth is fed and coated with the size, specifically, after the polyester mesh cloth is pressed and rolled, the surface layer and the bottom layer of the polyester mesh cloth are uniformly coated with the size A; (3) dryingis carried out, specifically, the polyester mesh cloth coated with the size A is dried; (4) film preheating is carried out, specifically, a polyvinyl chloride film is heated to be in a molten state;(5) laminating is carried out, specifically, the polyvinyl chloride film in the molten state and the polyester mesh cloth coated with the size are heated, pressurized and laminated to prepare the coated tarpaulin; and (6) cooling and shaping are carried out, specifically, the coated tarpaulin is cooled to obtain the finished product. The method is simple and efficient, and the prepared polyvinyl chloride coated tarpaulin is high in peel strength among all layers and excellent in water seepage resistance, cold resistance, sun shading performance, weather resistance and the like.

The invention provides a foundation pit support structure with screw holes and a pyramid-shaped bottom. A first plate and a second plate are provided with inner cavities, the top face of the first plate and the top face of the second plate are opened, and the bottom face of the first plate and the bottom face of the second plate are sealed; the bottom of the first plate and the bottom of the second plate are both in a pyramid shape; the left side and the right side of the first plate are concaved inwards to form first grooves, first protruding heads protruding outwards are arranged on the left side and the right side of the second plate, and the first plate and the second plate are detachably connected through the first grooves and the first protruding heads. First screw holes are formed in the left aide and the right side of the first plate, second screw holes are formed in the left side and the right side of the second plate, the first screw holes and the second screw holes are horizontally through, and bolts penetrate through the first screw holes and the second screw holes to fasten the first plate and the second plate together.

The invention discloses a regeneration brick capable of purifying water quality, which relates to the technical field of building material. The regeneration brick comprises the following raw materials by weight part: 60-80 parts of sugar refinery filter mud with water content being no higher than 30%, 5-10 parts of protein powder, 0.1-0.5 parts of sodium dodecyl benzene sulfonate, 2-10 parts of boric acid, 15-20 parts of polyacrylamide, 70-90 parts of building waste material and 50-70 parts of slag. The regeneration brick can solve the problem that the polluted water body is effectively purified through sludge resource and harmlessness processing in a lot of sugar refineries, and has obvious anti-compression, water-resistance, anticorrosion and antiseepage capabilities.

The invention belongs to the technical field of civil construction underground engineering, and provides a sinking wall construction method, which enables the wall to sink in a controlled manner, and is relatively economical and reasonable. Excavate the rock and soil layer by layer, use the jack on the supporting pile to support the wall at the bottom of the excavated groove so that the bottom of the wall is suspended, use the jack to lift the supporting pile to cooperate with the excavation; after layered excavation, use the jack to press the supporting pile Until its settlement is stable; the wall and the retaining structure are entrained with roller elastic support rods, which transmit the balanced rock-soil pressure and control the sinking frictional resistance; the wall sinks under the control of the jack for a section, and the ground is raised for a section. When this construction method is used for foundation pit support, after connecting the basement exterior wall and the steel support wall on the ground, they sink in place under control at the same time, and then carry out large-scale excavation, which can prevent accidents caused by insufficient support. The support system has strong adaptability to architectural schemes and geology. This construction method can also be used in the construction of slope retaining walls and underground anti-seepage walls.