47results about How to "Labor-saving construction" patented technology

The invention discloses a method for planting vegetation on the karst area slope, comprising: laying and fixing a wave shape plant-growing net with meshes on the slope surface, wherein the wave shape plant-growing net can be formed by connecting a surface layer net and a wave shape net and also can be formed by connecting the surface layer net, the wave shape net and the bottom layer net; spraying the artificial soil for the shrub slope protection in the karst area on the wave shape plant-growing net by a mechanical or an artificial operation method, and spraying the plant growth substrate mixed with the plant seeds on the top of the artificial soil by a sprayer. The invention lays the wave shape plant-growing net with the meshes on the shrub slope protection in the karst area, therefore, the sprayed artificial soil and seeds during laying the planting substrate can absorb in the wave shape plant-growing net with the meshes. The invention provides an adhesion platform for the artificial soil and seeds to ensure the root system expansion during plant growth, promotes the construction speed and saves the construction cost.

The invention provides a preparation method of a viscosity-reducing polycarboxylate superplasticizer and an application thereof. The viscosity-reducing polycarboxylate superplasticizer can remarkably reduce the viscosity of concrete on the premise of guaranteeing high water reduction and high slump loss resistance; and the preparation method has the advantages of simple technology, low cost, little pollution and the like. In the preparation method, a specific unsaturated acid monomer, a specific unsaturated polyether macromonomer and N-(4-vinyl benzyl)-N, N-dialkylamine in a molar ratio of (2.5-6.5):1:(0.05-0.2) are subjected to free radical copolymerization reaction to obtain the viscosity-reducing polycarboxylate superplasticizer.

The invention relates to a large motor and particularly relates to an adjustment tool for the large motor. The adjustment tool for a large-motor rotor and stator includes a main ruler and an auxiliary rule. The main rule is hollow inside and the upper edge of the outer surface of the main ruler is provided with a scale and the side face of the main ruler is provided with an opening groove. Two walls at the inner side of the main ruler are both provided with oblique planes which oblique from inside to outside and from top to bottom. The auxiliary ruler is inserted into the main ruler and the side of the head end of the auxiliary ruler is provided with oblique planes corresponding to the oblique planes in the main ruler. A slide shaft is arranged at the starting point positions of the oblique planes of the auxiliary ruler. The tail end of the auxiliary ruler is provided with a slide block which is inserted into the opening groove in the surface of the main ruler. The adjustment tool is capable of reducing effectively construction personnel, improving device installation efficiency and improving effectively installation precision.

The invention discloses a spraying quick-setting liquid rubber waterproof coating, which includes three components, A, B and C. The A component is a main agent solution of a waterproof material, and the B component is a catalyst and a demulsifier solution. The C component mentioned is a reinforcing fiber solution. The manufacturing method of the waterproof coating includes: the preparation of the A component, the B component and the C component respectively, and then the three components are sprayed out through independent feeding and discharging systems, and the atomized two components A and B are sprayed out. The C components meet, mix and react in the air. After landing, they are rapidly formed, and the reaction water is precipitated. After special rolling, the AB mixture and the C component reinforcing fibers are bonded together to form an integral seamless fiber-reinforced membrane. The obvious advantages of the invention are: fast film formation, spraying for 4 seconds; excellent adhesion; high elastic self-healing; high elongation, elongation above 600%; ; And strong corrosion resistance and high and low temperature resistance.

The invention relates to a cavern-shaped molding board for a salt treatment house roof, which comprises a wire-mesh framework, a projection, polyurethane expanded polystyrene or mortar, bond and salt powder, wherein the wire-mesh framework is provided with the projection, the projection is provided with a layer of polyurethane expanded polystyrene or mortar, and a layer of bond and salt powder is sequentially arranged above the polyurethane expanded polystyrene or mortar. The wire-mesh framework is of a square shape, a rectangular shape, a circular shape, an ellipsoid shape or a triangular shape. The projection adopts the wire-mesh material or the molded glass fiber reinforced fabric. The projection is formed by a plurality of centrum with different sizes or raised bodies with different sizes. The materials adopted by the molding board are toxic free and harmless. The wire-mesh framework, the polyurethane expanded polystyrene and the sand are of light materials. The molding board is very safe to install on the roof, is convenient to construct, and saves time and labor. A plurality of molding boards can be joined to form the roof so as to authentically reflect the cavern effect, so people can have a rest in silence just like entering the natural cavern, and can breath freely so as to realize the best treatment effect.

The invention discloses a thin type floor heating system mounting structure, and relates to the technical field of floor heating system mounting structures. The thin type floor heating system mounting structure comprises a floor decoration layer which is manufactured through a thin ceramic board, a heat dissipating plate which is connected through a special adhering agent for heating, and a heat preserving layer. With the adoption of the thin type floor heating system mounting structure, more than 50% of thickness of the constructed surface can be saved, and the good effect of 'decreasing three and adding one' is achieved; decreasing three is namely decreasing the energy consumption of a floor heating system, reducing the loss of housing story, and reducing the overall construction period; and adding one is adding the temperature increasing temperature of the floor heating system.

The invention provides a convenient foundation pit supporting frame and a supporting method thereof. The convenient foundation pit supporting frame comprises a supporting frame body and an embedded part, wherein the supporting frame body is of an integral structure with the I-shaped cross section and comprises a left side plate, a web and a right side plate; the left side plate and the right sideplate are respectively and fixedly arranged at the two sides of the web; a plurality of side plate connecting parts are uniformly distributed on the inner walls of the left side plate and the right side plate; a plurality of web connecting parts are uniformly distributed on the web; the web connecting parts and the side plate connecting parts are identical in height; the embedded part is of a triangular prism structure with a right angled triangle cross section; and fixed parts connected to the web connecting parts and the side plate connecting parts are arranged on the three right angle surfaces of the embedded part. The convenient foundation pit supporting frame and the supporting method thereof have the beneficial effects that the convenient foundation pit supporting frame is simple instructure, can be prefabricated in advance, is convenient to produce and transport, causes the site construction to be time-saving and labor-saving, facilitates the construction of workers, meanwhilefacilitates the fallow-up disassembly work and greatly improves construction efficiency.

The invention provides a ground structure applied to a soft soil foundation and a construction method of the ground structure. The ground structure comprises a lower supporting rib, an intersection rib and a ground layer, wherein the lower supporting rib and the intersection rib are casted in the soft soil foundation, the ground layer is casted on the surface of the soft soil foundation, and the lower supporting rib, the intersection rib and the ground layer are of a plain concrete structure or reinforced concrete structure integrally casted and molded; and the construction method comprises the steps that the ground of the soft soil foundation is leveled, and a net-shaped groove is formed in the leveled ground; concrete is casted in the net-shaped groove and the ground; or reinforcing steel bars are arranged in the net-shaped groove and on the ground, and then, concrete is casted, so that the ground structure with the lower supporting rib, the intersection rib and the ground layer is formed; and the ground structure has the large bearing force, time and labor are saved in the construction process, the construction cost is low, and the civilized and environment-friendly construction requirement is met.

The invention discloses a drill bit for constructing a cast-in-situ bored pile and a hole forming method. The drill bit is provided with a detachable mud scrapping assembly, the mud scrapping assembly comprises mud scrapping plates (8) and installing plates (9), the installing plates (9) are welded to the inner circumferential face of a check ring (3), a steel brush (14) is arranged at the outer side of each mud scrapping part (8.2), the mud scrapping plates (8) are hooked and hung on the check ring (3) through clamping grooves (10), and an installing part (8.1) of each mud scrapping plate (8) is located between two corresponding installing plates (9) in the same set and fixed to the corresponding installing plates (9) at the two sides through threaded connection. The hole forming method is characterized in that in the drilling process, the mud scrapping plates (8) are installed on the check ring (3) to drill a big hole matched with a pile casing in size, and then the mud scrapping plates (8) are dismantled to drill a small hole, wherein the size of the small hole is matched with the design size of the cast-in-situ bored pile. By means of the drill bit and the hole forming method, sandy soil between the pile casing and the pile hole can be effectively drilled away without substantially increasing time and economic cost.

A special reamer for rock comprises a reaming head, a first-stage reamer body, a connector, a second-stage reamer body, a top plate, a connection lead screw, a nut and a drill stem; the first-stage reamer body is arranged at the top end of the reaming head, and a reaming head convex block is embedded into a first-stage reamer body bottom groove to achieve limiting of the first-stage reamer body and the reaming head; the connector and the second-stage reamer body are arranged at the top end of the first-stage reamer body; a connection bottom block is embedded into a first-stage reamer body topconnection groove, and a connection top block stretches into a second-stage reamer body cavity; a connector convex block is embedded into a second-stage reamer body bottom groove, and a second-stage reamer body connection block is embedded into a first-stage reamer body connection groove, so that limiting of the second-stage reamer body and the first-stage reamer body is achieved; the top plate isembedded into a second-stage reamer body connection groove; the bottom end of the connection lead screw stretches into the device; the top end of the connection lead screw is fixed to the top plate due to threaded connection of the nut; and the drill stem is fixed to the connector and the reaming head in a threaded manner. The special reamer for the rock can be subjected to structural adjustmentaccording to the reaming size, and is flexible to use and high in structural strength.

The invention discloses a drill bit for constructing bored piles and a construction method using the drill bit. The drill bit is provided with a mud scraping assembly and a detachable rib protecting block. The mud scraping assembly comprises a mud scraping plate (8) and installing plates (9), and the installing plates (9) are welded to the circumferential face of the inner circle of a block ring (3). A steel brush (17) is arranged on the outer side of the mud scraping plate (8). The mud scraping plate (8) is hung on the block ring (3) through a first clamping groove (10). An installing part (8.1) of the mud scraping plate (8) is located between the two installing plates (9) of the same set, and the installing part (8.1) of the mud scraping plate (8) and the installing plates (9) on the two sides are fixed in a threaded connection mode. The method is characterized in that in the drilling process, the mud scraping plate (8) is firstly installed on the block ring (3) so that a large hole with the size matched with that of a pile casing can be drilled, then the mud scraping plate (8) is taken down, and the rib protective block is installed so that a small hole with the size matched with the designed size of the bored piles can be drilled. By means of the drill bit and the construction method, sand soil between the pile casing and the pile holes can be effectively removed in a drilling mode.