37results about How to "Less construction equipment" patented technology

The invention discloses a novel precast concrete pipe die, which is a precast concrete pipe pile of a hollow structure. The wall of the precast concrete pipe die is internally provided with annular and vertical reinforcing steel bars, the inner surface of the pipe die is provided with dowel bars connected with post-poured concrete into a whole and an electric heating wire for heating, the upper end and the lower end of the pipe die are provided with tooth-shaped connectors which are mutually matched, the wall of the pipe die is internally provided with preset pore canals for prestress reinforcing steel bars, and the pore canals are through longitudinally. A construction method of the novel precast concrete pipe die comprises the steps of: after positioning the precast concrete pipe die, switching on a power supply of the electric heating wire, and performing high-dropping self-compacting concrete pouring on the middle of the concrete pipe die; and after a first section of cylinder core of the pipe die is poured, performing hoisting positioning and concrete pouring on a second section of the concrete pipe die. The invention has the advantages that by precasting the concrete pipe die, the special requirement on the use functions of a concrete column surface and a column template can be met, and the heating functions of the novel precast pipe die can also ensure the smooth construction in winter; and the novel precast concrete pipe die and the construction method thereof have the advantages of simplicity and rapidness for construction, less required construction equipment, and capability of greatly reducing the construction cost and the comprehensive manufacturing cost.

The invention discloses an ecological restoration structural system and a restoration method for a lakeside zone. The ecological restoration structural system for a lakeside zone is provided with a planting plant zone and a physical substrate zone in sequence along a direction from a bank slope to a lakeside center, and a wave resistance device is arranged in an arranging region of the planting plant zone. According to the ecological restoration structural system and the restoration method for a lakeside zone, the ecological physical substrate is built in the lakeside zone, and the problem of harmonious coexistence of aquatic plants and the physical substrate is effectively solved.

The invention belongs to the field of ocean wind power generator foundations, and discloses a three-barrel self-elevating gantry type wind power generator foundation structure and a construction method thereof. The three-barrel self-elevating gantry type wind power generator foundation structure comprises three barrel-shaped bases which are connected into an integral body through a gantry type tower frame; and the gantry type tower frame comprises three vertical tower frames and three transverse tower frames which are connected into a gate shape; the vertical tower frames and the transverse tower frames are connected through lifting mechanisms; the lifting mechanisms comprise racks mounted on the two sides of the vertical tower frames, gears mounted at the outer ends of the transverse tower frames, locking devices and lifting control systems; and during construction, on one hand, buoyancy of the barrel-shaped bases is effectively utilized during towing, and on the other hand, mechanical sinking is achieved through the lifting mechanisms, and mounting is achieved through a traditional sinking manner. The three-barrel self-elevating gantry type wind power generator foundation structure has the advantages of the barrel-shaped bases and a self-elevating gantry; and in the construction method, buoyancy of the barrel-shaped bases is effectively utilized during towing, the entire sinking process is simple and quick, few construction devices are required, a large on-water site construction device is not utilized, the construction speed is high, and comprehensive construction cost is low.

The invention relates to the technical field of building construction, and discloses a water tank preloading technology of a huge open-frame girder steel tube full support. The water tank preloading technology includes the following operation processes of full support erection, preloading area selection, preloading load determination, water tank erection, monitoring point arrangement, monitoring instrument setting, water storage gradation loading, preloading monitoring, settlement stabilization, drainage and unloading, support template adjustment and next procedure executing. By using simple equipment which is always available at the site and self-configuring a water tank, the flexibility, simpleness and convenience are achieved, the working efficiency is high, and compared with a traditional preloading method, the construction period can be shortened by 1/3 or above; and the processing cost is low, operation is easy and convenient, the cost is saved, compared with adopting a precast reinforced concrete block preloading method, the investment can be saved by 70-80%, compared with sandbag stacking preloading, the investment is saved by 30-40%, and compared with site reinforced material preloading, the investment can be saved by 20-30%, and the preloading method has the advantages of less construction equipment, high construction efficiency, local material using, easy manufacturing, environment-friendly construction, reasonable actual stress state in the simulated pouring process, and the like.

The invention discloses a landfill gas gas-collecting shaft construction method, which adopts grabbing-bucket digging well method to dig the gas-collecting shaft, and the completed gas-collecting shaft has good permeability, and high gas-collecting efficiency. The grabbing-bucket is controlled through a steel rope, the length can be controlled; and the gas-collecting shaft with deep depth can be constructed according to needs, meanwhile, the control method can simplify the structure. Pebbles or gravels are poured into a gas-collecting vertical hole at the outside of a gas-collecting pipe to the top of the garbage layer, and the periphery of the gas-collecting shaft on the garbage layer is provided with bentonite, and the bentonite is tamped to form a sealing structure, accordingly, the efficiency can be further increased.

The invention discloses a carpet type quick paving belt. The carpet type quick paving belt is prepared from the following raw materials: styrene-butadiene-styrene (SBS) modified asphalt, rubber powder, environment-friendly rubber oil, slaked lime and fiber material. The invention also discloses a preparation method of the carpet type quick paving belt and a construction method adopting the carpet type quick paving belt. The carpet type quick paving belt is reasonable and scientific in formula and design, can be used for quickly repairing the fatigue cracking pavement, is high in bonding strength, rapid in strength molding, good in durability, good in repairing quality, good in low-temperature cracking resistance, attractive and durable, and is not friable at low temperature and not deformed at high temperature; the preparation method provided by the invention is simple in technology, easy to implement and high in production efficiency; the construction method provided by the invention is simple in construction technology, fewer in construction machines and tools needed by the field and low in noise; centralized prefabrication can be carried out before construction, so that waste gas can be better controlled in a centralized way, waste gas emission and damage to the environment and the constructors of the conventional paving operation are completely avoided, and construction is fast.

The invention discloses an evaluation method of anti-slide performance of a rigid connection structure of a simulated micropile. The method comprises the steps of pasting a strain gauge on a pile bodyof each simulated micropile; setting a pressure cell on a soil-backing side and a soil-facing side of each simulated micropile; setting a displacement sensor in a slide bed soil mass; electrically connecting the strain gauge, the pressure cell and the displacement sensor to an external processor; simultaneously applying a vertical load step by step on a slope top of the slide bed and a top of therigid connection structure of the simulated micropile; acquiring a displacement of the pile top, a bending moment of the pipe body, the front and back soil pressures of the pipe body of the rigid connection structure of the simulated micropile by the processor; performing a numerical simulation calculation by finite difference software FLAC3D; and, acquiring an optimal top load of the rigid connection structure of the simulated micropile by the software analysis under the working condition the same with the physical simulation experiment. The optimal load of the top of the rigid connection structure is measured by the rigid connection structure of the simulated micropile.

The invention discloses a micro pile rigid connection structure with landslide preventing and a production road and a construction method of the micro pile rigid connection structure. The micro pile rigid connection structure is composed of a micro pile group and a concrete layer, wherein the micro pile group is used for preventing landslide phenomena and is composed of a plurality of micro pilesdistributed in plum blossom patterns, each micro pile is used for driving into the ground where slope treatment is needed, the lower end of each micro pile is located on the simulated sliding crack surface, the top end of each micro pile is beyond the ground, the micro piles are filled with concrete from the top end to the bottom, a concrete layer is formed between the micro piles, the thickness of the concrete layer is greater than the distance beyond the ground of the top ends of the micro piles, the concrete layer is used for filling gaps between the micro piles, making the top surface of the micro pile groups to form a flat road surface, and is further used for encrypting and fixing the micro piles, and the road surface is considered as the production road for people and trolleys to pass. According to the micro pile rigid connection structure with landslide preventing and the production road and the construction method of the micro pile rigid connection structure, the micro piles are used as roadbeds, through rigid connection at the top of the micro piles, the road surface of rigid connection at the top of the micro piles is used for people to pass, and the land utilization area is increased.

The invention relates to online fracturing fluid and a preparation method therefor. The online fracturing fluid contains the ingredients in parts by mass: 0.8-5 parts of agent A, 0.2-1 part of agent B and 94-99 parts of water; the agent A contains the ingredients in parts by mass: 10-20 parts of chitin, 10-20 parts of starch, 5-20 parts of acrylamide, 2-5 parts of bioactivator, 0.1-1 part of sugar, 0.1-0.5 part of sodium polyaspartate, 10-20 parts of environment-friendly solvent and 13.5-62.8 parts of water; and the agent B contains the ingredients in parts by mass: 5-20 parts of alkaline proteinase, 10-20 parts of bioactivator, 5-10 parts of EDTA-4Na, 0.1-0.2 part of sodium ethylenediamine disuccinate, 0.5-1 part of sodium polyaspartate, 0.2-1 part of sodium acetate, 0.5-1 part of sodium lactate, 0.5-1 part of potassium lactate, 0.5-1 part of sugar, 5-10 parts of ethanol and 34.8-72.7 parts of water. The online fracturing fluid has the characteristics that online continuous preparation is achieved, the operation is simple, the working concentration is low, the viscosifying speed is high, the sand carrying performance is good, the friction drag is low, the damage is low, the online fracturing fluid is heat-resistant and shear-resistant, the viscosity of flowback fluid is low, the applicable range is wide, the cost is low, the production increase effect is good, and the like.

The invention relates to a single-slurry blending device for hole drilling and sealing. The device is composed of a feeding tank, a mixing pipe, a motor, a spiral pushing paddle and a water inlet pipe. The water inlet pipe is sequentially divided into a first mixing section and a second mixing section in the feeding direction, at least two single-slurry nozzles are arranged in the first mixing section in the axial direction, a mixing cavity is formed in the rear sides of the single-slurry nozzles, the spiral pushing paddle is installed in the mixing cavity, and the motor is used for driving the spiral pushing paddle. The mixing pipe is provided with a return plate in front of each single-slurry nozzle, and the return plates are used for rebounding the single slurry sprayed by the single-slurry nozzles to the outer walls of the single-slurry nozzles to form rotational flow. The second mixing section is sequentially provided with at least two groups of inclined plates and baffles, the inclined plates are arranged at the lower part, and the baffles are arranged at the upper part, so that single slurry impacts the baffles along the inclined plates, then flows down and is finally fed into a grouting device through a discharge hole of the mixing pipe, the direct mixing configuration in the feeding process is completed, and the construction flow is saved.

The invention discloses construction equipment based on synchronous drilling and precast pile splicing and a construction method thereof. The equipment comprises an equipment main platform provided with drilling and pile planting holes, and a lifting device and a main mast are arranged on the equipment main platform; six track plates are arranged on the main mast, one drilling machine is arranged on each of the first track plate and the second track plate, and two pile clamping devices are arranged on each of the third track plate and the fourth track plate; the two pile clamping devices on the third track plate are the first pile clamping device and the second pile clamping device, and the two pile clamping devices on the fourth track plate are the third pile clamping device and the fourth pile clamping device; the third section of precast pile and the fourth section of precast pile are spliced on the fourth track plate while the drilling machine on the second track plate drives a drill rod to drill holes; and the first precast pile section and the second precast pile section are spliced on the third track plate while the drilling machine on the first track plate drives the drill rod to drill holes. The equipment construction method is simple and efficient, and the pile planting quality can be guaranteed.

The invention discloses a construction method of tunnel thermal insulation in a severe cold area. After the examinations of secondary lining clearance, surface evenness and water seepage situation arequalified, expansion anchor bolts are arranged to enable thermal insulation boards to be fixed to the surface of a secondary lining, and then fire prevention boards are laid and fire retardant coating is sprayed. The construction method of the tunnel thermal insulation in the severe cold area has the beneficial effects that the construction procedure is simple, the construction equipment is less,the construction period is effectively shortened, no special requirements for the operating environment is performed, tunnel environment pollution is small, and the construction cost is effectively reduced. Various freeze injuries caused by infiltration during the spring thawing period are effectively prevented, and the temperature of a structure and the traffic safety are guaranteed.

The invention discloses a rotating disc for turning a whole bridge girder erection machine. The rotating disc comprises a chassis and a top rack which is movably mounted on the chassis in a buckled manner, wherein a first plane where the top rack exists is parallel to a second plane where the chassis exists; the top rack can rotate in the first plane relative to the chassis and does not deviate from the chassis. During construction, the rotating disc disclosed by the invention can be utilized to conveniently rotate the bridge girder erection machine.

The invention relates to a sludge suction vehicle for building construction. The sludge suction vehicle comprises a truck and a motor, wherein the truck is provided with the motor and a high-pressuresludge suction device, the motor is connected with the high-pressure sludge suction device, the high-pressure sludge suction device is connected with a sludge suction pipe, a spiral drill is arrangedat the front end of the sludge suction pipe, the truck controls the spiral drill, and the truck controls the spiral drill to drill and crush sludge. According to the sludge suction vehicle, the sludgeis sucked into the truck from the sludge suction pipe through the high-pressure sludge suction device, and the advantages that the construction efficiency is improved, construction equipment is reduced, and the cost is reduced are achieved.