38results about How to "Convenient post-construction" patented technology

The invention discloses a homogeneous non-combustible polyurethane foam heat insulating material and a preparation method thereof. The heat insulating material is prepared by reacting the following raw materials in parts by weight: 6~20 parts of polyurethane rigid foaming material, 4~20 parts of flame retardant and 60~90 parts of inorganic filler, wherein the loose packing density of the inorganicfiller is 1.0~2.0 g/cm<3>. The heat insulating material prepared by the invention has overall density between 120 and 800 kg/m<3>, compressive strength being greater than and equal to 0.10 MPa, highmechanical strength, good durability, total heat value being smaller than and equal to 3.0 MJ/kg, combustion growth rate index being smaller than and equal to 120 W/s and 600 s total heat release ratebeing smaller than and equal to 7.5 MJ, and belongs to A2 grade non-combustible material, and has high fire-proofing safety and simple preparation process, and can realize industrial production.

The invention supplies a environment protection energy saving heat preservation exterior wall coating material that contains polyvinyl alcohol 5-10%, acryloid cement 20-40%, cellulose liquor 10-20%, wollastonite in powder 10-30%, see-bubble powder 2-5%, asbestos fiber 1-4%, expanded perlite 5-12%, and water 10-30%. The raw material taking fully mixing to form thick slurry, it could be coated onto the wall. The invention has strong adhesion, high alkali resistance and high water resistance.

The invention discloses a subsurface tunnel drainage treatment method. The method includes the following sequential steps that a, a plurality of precipitation wells are disposed in the middle of a tunnel firstly, and primary lining construction is performed after the water level in the tunnel descends to the safety position; b, after the primary lining construction is finished and silt on the bottom surface of a primary lining is removed, a water filtering layer is paved on the primary lining bottom surface; c, a plurality of drainage conduits extending to a vertical shaft water collection pit are laid in the water filtering layer; and d, a water-proof layer is paved on the upper surface of the water filtering layer, and C25 concrete is poured on the water-proof layer. During application, accumulated water remained on the primary lining is filtered through the water filtering layer and then enters the drainage conduits, and the accumulated water is drained into the vertical shaft water collection pit after being subjected to centralized treatment through the multiple drainage conduits; and in the drainage process, the water-proof layer and the concrete layer are disposed on the upper portion of the water filtering layer, so that the effect that the bottom surface of a secondary lining is kept dry is guaranteed, and later stage construction in the tunnel is facilitated.

The invention relates to a method for conducting deep foundation pit waterproof curtain construction through a high-pressure jet grouting pile machine, and relates to the technical field of deep foundation pit waterproof curtain construction. The construction method comprises the steps of construction preparation, surveying and setting out, drilling machine positioning and hole guiding, cast-in-situ bored pile construction, pre-hole-exploring construction, high-pressure jet grouting pile construction and slurry supplementing and checking. On the basis of existing high-pressure jet grouting piles and cast-in-situ bored piles, the situation that only the high-pressure jet grouting piles are adopted for foundation pit waterproof curtain construction in the existing construction process is improved into the situation that the cast-in-situ bored piles are adopted for construction in a soil layer with soft soil texture and small construction difficulty (the upper portion) in a construction area (foundation). High-pressure jet grouting piles are adopted for construction in a (lower) soil layer which is hard in soil texture and large in construction difficulty, so that the construction cost is reduced.

The invention discloses a production formwork for a concrete prefabricated wallboard with a hole and a production method thereof. The production formwork defines a forming cavity through a front plate, a rear plate, a left embracing plate, a right embracing plate and a lower embracing plate, tensioning is performed through a pull rod and a locking head, and a reserved pipe is limited in the forming cavity further through a locating rod. According to the production method, concrete is poured from an opening at the upper end of the forming cavity, demolding is performed after solidification, thereserved pipe is reserved in the concrete prefabricated wallboard, and a reserved hole is formed. The produced concrete prefabricated wallboard with the hole facilitates construction at a later stageof construction and improves working efficiency and engineering quality.

The invention discloses an anti-burglary structure in cable maintenance. The anti-burglary structure in cable maintenance comprises an inspection well, a well lid, an input cable pipe, an output cablepipe and a working cable pipe connected with a streetlamp. A confining device capable of winding a cable is arranged between the input cable pipe and the output cable pipe, and comprises a confiningpipe, and a winding-unwinding frame arranged in the confining pipe and used for confining the cable; a middle position of the working cable pipe communicates with a middle position of the confining pipe; an opening is formed in the confining pipe; and a flip cover is arranged on the opening. The reserved cable winds on the winding-unwinding frame so as to be confined, the winding-unwinding frame is then stored into the confining pipe, and the flip cover is covered, so that a thief cannot directly damage the cable; the flip cover is locked and fixed through a fastening piece, so that the thiefis hard to open the confining pipe to steal; and when the cable needs to be checked and maintained, the flip cover is opened, and the winding-unwinding frame is unfolded, so that the winded reserved cable is unfolded along with the winding-unwinding frame, and constructors can check and operate conveniently.

The invention discloses a construction method and equipment for cutting a deep-buried structure with a small-caliber drill tool and relates to the field of deep-buried structure cutting construction. In the method, by filling and pouring concrete in the deep-buried structure, digging a cutting slot above the deep-buried structure, pouring bottom plate concrete in the cutting slot and adopting a method for positioning a drill rod by a positioning frame, the accurate cutting of the deep-buried structure by using the small-caliber drill tool is realized, the construction cost is reduced and the construction period is shortened. The high-precision positioning frame ensures the drill rod operates at a position required in design, so that the drill rod can only operate between four adjacent guide rods without deflection. Guide rods are arranged on both sides of a positioning frame to improve the success rate of the cutting construction.

The invention relates to the technical field of paint, and discloses a quick-drying paint. The quick-drying paint is prepared from the following components in parts by weight: 38-46 parts of epoxy modified organic silicon resin, 12-18 parts of hydrogenated nitrile rubber, 3-5 parts of copper powder, 2-4 parts of rutile type titanium dioxide, 7-10 parts of mica powder, 12-15 parts of isopropanol, 6-9 parts of P-phthalic acid, 12-18 parts of triphenyl phosphite, 6-10 parts of an acrylate leveling agent, 8-12 parts of waterborne acrylic acid, 3-8 parts of methyl isobutyl ketone and 12-21 parts ofdeionized water. The quick-drying paint is rapid in drying speed, shortens the air drying time, and is beneficial to later construction or comeming into service as early as possible.

The invention discloses a composite formwork for a building and a manufacturing method thereof. The composite formwork sequentially comprises a reinforcing structure layer (1), a grid supporting layer(2) and an inner structure layer (3) from outside to inside. The inner structure layer (3) seals the reinforcing structure layer (1) and the grid supporting layer (2) on the left side and the right side of the composite formwork for the building, and a plurality of concave-convex structures (4) capable of being spliced with one another are formed on the sealed parts on the left side and the rightside respectively. The manufacturing method comprises the following steps: 1) preparing the reinforcing structure layer (1); 2) preparing the grid supporting layer (2); 3) compounding the reinforcingstructure layer (1) and the grid supporting layer (2); and 4) preparing the inner structure layer (3). According to the formwork, the problems that in the concrete pouring process, defects are proneto occurring due to the fact that local vibration is not tight and filler is not compact are solved, the disclosed formwork is light in weight and high in strength, the service lifetime is prolonged,no release agent is used so that environmental pollution is avoided, and the manufacturing method is simple in process and low in energy consumption.

The invention relates to a leveling device, in particular to a dry joint filler leveling device for road construction. An object of the present invention is to provide a dry joint filler leveling device for road construction which can quickly pave fillers and is convenient for later construction. The technical embodiment of the invention is as follows: a dry seam filling material leveling device for road construction comprises a bottom plate, a wheel, an annular slide rail, a first slide block, a mounting plate, a bearing seat, a rotating shaft, a first push rod, a second slide rail, a secondslide block, a first lifting plate and the like; Wheels are arranged on the left and right sides of the bottom plate, annular sliding rails are arranged on the top of the bottom plate, two first sliding blocks are arranged in the annular sliding rails, and mounting plates are connected on the tops of the two first sliding blocks. The invention achieves the effect that the filler can be quickly paved and the construction is convenient in the later stage. The invention indirectly causes the wood board to sweep the filler in front and back on the ground by swinging the first push rod left and right artificially, and achieves the effect that the filler can be quickly paved and the construction is convenient in the later stage.

The invention belongs to the technical field of thermal-insulating walls and provides a wall supporting assembly and a wall. The wall supporting assembly comprises a supporting part which is used forconnecting an outer formwork and an inner formwork, the supporting part comprises a clamp part, a length adjusting part and a supporting rod, a notch I is formed at the clamp part and used for being clamped on the edge of the outer formwork, the length adjusting part is arranged on the inner formwork, one end of the supporting rod is arranged at the clamp part, and the other end is arranged on thelength adjusting part. The inner formwork of the wall is convenient to dismount and mount, the outer formwork has high flatness and is not required to be dismounted, the construction process can be operated indoors, construction safety of workers can be guaranteed, and the problem that flatness and perpendicularity between the formworks are not easily guaranteed in the prior art is solved.

The invention discloses a building or decorative sheet material with advantages of excellent waterproof and fireproof performances, high strength, and easy fabrication and construction, which comprises a paper-faced gypsum board and is characterized in that a glass fiber mat-containing magnesium board is equipped on the outer surface of the paper-faced gypsum board, wherein the glass fiber mat-containing magnesium board comprises an intermediate substrate formed by mixed binding material containing magnesium-oxychloride cement as main component, and a protective coating arranged on the outer surface of the intermediate substrate layer and formed by glass fiber mat. The inventive sheet material is easy to construct and is widely used in building and decoration fields.

The invention relates to the technical field of building construction, and discloses an operation platformapplied to a hyperbolic space structure and a construction method. Theoperation platformapplied to the hyperbolic space structurecomprises ropeways and hanging baskets; the ropewaysarefixed toa structural beam at an outer curved surface inthe circumferential direction of the outer curved surface and in tensioned states, and the plurality of ropeways are arranged in the radial direction of the outer curved surface at intervals; the hanging basketsare hung on the ropeways, and each of the hanging baskets are sequentially connected to each of the ropeways in the length direction. According to the operation platformapplied to the hyperbolic space structure and the construction method, the structural beam at the outer curved surface is fully utilized as a load-bearing structure, the hanging type fixed hanging basket is adopted as an operation platform, a scaffolding does not need to be built or a lifting platform does not need to be established in the operation platform which is suitable for the hyperbolic space structure; and the ropewaysare adopted, the fitting degree to the hyperbolic space structure is good, and later construction is facilitated.

The invention relates to the technical field of paints, and discloses a quick-drying paint. The parts by weight of the components are: 22-38 parts of diatom mud, 10-14 parts of higher fatty alcohol, 7-9 parts of emulsifier, and manganese dioxide 2‑5 parts, 7‑11 parts of isopropanol, 7‑11 parts of terephthalic acid, 5‑8 parts of dispersant, 6‑12 parts of polymethicone, 12‑16 parts of water-based acrylic acid, 10 parts of disinfectant ‑15 parts, deionized water 5‑12 parts. The fast-drying paint has a fast drying speed, shortens the air-drying time, is beneficial to later construction or use, and has high timeliness.

The invention discloses a trenching frame for a trenching machine and relates to the technical field of agricultural machinery. The trenching frame comprises a fixed frame; a supporting rod is hingedto the bottom of the fixed frame; soil dividing plates are hinged to the two side surfaces of the supporting rod; a plow is fixed on one end surface of the supporting frame; a bent pipe is fixed on one surface of the fixed plate; a spring is sheathed on the inner surface of the bent pipe; a notch is formed in the circumferential side surface of the bent pipe; a limiting plate is fixed on one end surface of the bent pipe; a third hinge seat is fixed on one surface of the fixed plate and is hinged to the supporting rod; two first connecting rods are fixed on one side surface of the supporting rod; a through hole is formed in one surface of each of the two first connecting rods; a ball bearing is fixed on the inner surface of the through hole; a threaded sleeve is fixed on the inner surface of the ball bearing. The trenching frame disclosed by the invention has the benefits that by rotary fit between the supporting rod and the fixed frame, the spring in the bent pipe applies a supportingforce to the supporting rod, and the spring is compressed by the external force applied on the supporting rod, so that the plow can be effectively protected, therefore, the economic loss is avoided, and the smooth trenching operation is facilitated.

The invention discloses a tunnel boring machine based on a visual positioning technology, and belongs to the field of tunnel boring machines, the tunnel boring machine comprises a cylindrical shell, a screw-in drill bit and a control transfer base station, a rotating mechanism is fixed in the cylindrical shell, an angle adjusting mechanism is fixed at the output end of the rotating mechanism, the screw-in drill bit is fixed at the output end of the angle adjusting mechanism, and the control transfer base station is fixed at the output end of the angle adjusting mechanism. A material conveying belt is arranged at the inner bottom of the barrel-shaped machine shell, a spherical seat is arranged on the outer wall of the barrel-shaped machine shell, an annular support is rotationally connected to the spherical seat, a ball groove matched with the spherical seat is formed in the inner wall of the annular support, a plurality of telescopic rods are arranged between the two sides of the annular support and the outer wall of the barrel-shaped machine shell, and the telescopic rods are evenly distributed at equal angles. A remote control mode is adopted, and the tunneling machine is suitable for tunneling work of a small tunnel, high in tunneling efficiency, accurate in tunneling line, visual in whole-process control, high in safety coefficient, good in market prospect and suitable for popularization.

The invention provides a comprehensive grounding system of a shield method comprehensive pipe gallery. A lower supporting cushion layer is arranged on the inner side of the lower portion of a shield tunnel. A middle partition plate is mounted above the lower supporting cushion layer; a duct piece grounding connecting plate pre-buried on the shield duct piece is electrically connected with a reinforcing mesh in the shield duct piece; a cushion layer grounding connecting plate pre-buried on the surface of the lower supporting cushion layer is electrically connected with a grounding steel bar grid I in the lower supporting cushion layer; the grounding steel bar grid I in the lower supporting cushion layer is electrically connected with the duct piece grounding connecting plate; a middle partition plate grounding connection plate pre-buried on the surface of the middle partition plate is electrically connected with a grounding steel bar grid II in the middle partition plate; the cushion layer grounding connecting plate is electrically connected with the middle partition plate grounding connecting plate; a transverse grounding main line is arranged in the upper cabin of the pipe gallery, the pipe piece grounding connecting plates are electrically connected through the transverse grounding main line, and the two ends of the transverse grounding main line are electrically connected with the cushion layer grounding connecting plates. The construction speed can be increased, raw materials are saved, and the reliability of a grounding system is improved.