57results about How to "Conducive to civilized construction" patented technology

The invention discloses a construction method of a prefabricated wallboard. The construction method of the prefabricated wallboard comprises the following steps of 1, numbering the prefabricated wallboard after the wallboard is prefabricated in a factory, and transporting the prefabricated wallboard to a site; 2, checking components and confirming the number; 3, before hoisting, constructing the bottom laying position of the prefabricated wallboard; 4, hoisting and installing the prefabricated wallboard, wherein before the prefabricated wallboard is hoisted, upper and lower supporting end bases of an inclined strut are firstly installed, after the prefabricated wallboard is hoisted, the prefabricated wallboard is adjusted in position and is connected with the inclined strut to be fixed, then a tower crane hook is unhooked, the perpendicularity of the prefabricated wallboard is adjusted, finally, the periphery of the prefabricated wallboard is sealed, and a grouting sleeve is utilized to conduct mortar injecting. By means of the construction method of the prefabricated wallboard, a component assembly mode is adopted, a structural wallboard is divided into multiple blocks, after being prefabricated in the factory, the prefabricated wallboard is hoisted and installed on spot, and certain construction treatment is conducted, which helps to improve the construction quality, accelerate the engineering progress, and improve the building quality.

The invention relates to the technical field of embedding underground continuous walls into rock and grooving of the underground continuous walls and discloses a grooving construction method for embedding an underground continuous wall into rock. The method includes the steps that firstly, a grab bucket is used for excavating soil so that a groove can be formed, and a residual soil layer is reserved between the groove bottom and a rock face; secondly, a rotary excavating drilling tube is used for drilling holes in the residual soil layer and a seriously-weathered layer, a cutting-tooth drilling tube is used for drilling medium-weathered rock and micro-weathered rock, and rock entering holes in bed rock are formed; thirdly, the second step is repeated, and a plurality of rock entering holes are formed in the length extension direction of a groove segment; fourthly, a plane set-hammer is used for clearing away hard rock tooth edges. According to the construction method, the grooving speed is high, and on-site general layout and civilized construction are facilitated; meanwhile, the cutting-tooth drilling tube is used for performing rotary excavation and entering the rock to take a core, and impacting vibration is avoided; due to the fact that the grooving construction period is short, the exposing time of the groove wall is relatively short, the risk that groove wall soil collapses is reduced, the groove wall is stable, and construction cost is indirectly reduced; the residual soil layer is reserved on the rock face of the bed rock, the rotary excavating drilling tube plays a guiding role in the hole forming process, and the situation that because the inner rock face of the groove segment is inclined, hole drilling deflects is prevented.

The invention relates to a connecting method of prefabricated composite multi-ribbed floor slabs and steel beams of an assembly type steel structure house. Ribbed beams and steel beams at the joints of the multi-ribbed floor slabs and the steel beams are cast in place, and the fire prevention effect of the connecting joints of steel columns and the steel beams and the fire prevention effect of the steel beams are achieved; the multi-ribbed floor slabs are filled with light materials, and the heat insulation effect is achieved; and prefabricated composite multi-ribbed floor slab components are produced in advance and mounted in the field, the field construction speed is increased, lots of revolving materials such as supporting steel tubes, battens, web filmed multilayer boards and bamboo plywood are reduced, the construction speed is increased, and the construction cost is lowered.

The invention discloses a rapid hole-forming construction method for a large-diameter deep hole pile foundation under karst geology. 'Rotary drill and reverse circulation impact drill' combined relaydrilling is performed, a rotary drill rapidly performs drilling construction of a covering layer, and a reverse circulation impact drill is used for relay construction when a karst geological layer isdrilled. The combined construction process gives full play to the advantages of the two kinds of drills under the situations of different geological conditions and hole depths, the advantages are complemented with each other, and the construction efficiency and economic benefits of the large-diameter deep hole pile foundation under the karst geology are improved. Drilling of single drilling equipment is converted into combined drilling of the two different kinds of drilling equipment, the construction progress of the pile foundation is greatly accelerated under the condition of ensuring the hole-forming quality of the pile foundation, meanwhile, environmental friendliness is better achieved, civilized construction is facilitated, input of personnel and mechanical equipment is reduced, andthe good economic benefits are generated.

The invention discloses a flow construction method for forming a cast-in-place bored pile for a gravel-decomposed rock stratum in a double-machine combined mode. The flow construction method comprises the steps that a high-power hydraulic spiral drilling machine is adopted to conduct drilling; drilling is conducted to the design pile bottom elevation; the requirements of a design and related specifications for the length of the pile and a bearing course at the pile end are met; pore-forming is finished; a drilling rod is lifted out; residue soil produced by pore-forming with the high-power hydraulic spiral drilling machine is layered again and poured in a pile hole through equipment such as an excavator, the speed rate of backfill is controlled, and the filling quality of backfill soil to the pile hole is guaranteed; after a pile position is rechecked and set out again, a long spiral drilling machine is adopted to conduct drilling again on the backfill hole position and pile body concrete is pumped into the pile hole through the end of a drilling rod of the long spiral drilling machine; the pouring top face of the pile body concrete is 0.5-1 m higher than the design pile top elevation; after pumping is finished, a reinforcement cage is lowered to the design elevation trough the method that after vibrating, the reinforcement cage is inserted into the pile body concrete; and the steps are repeated, so that pile-forming flow construction is realized through the combination of the high-power hydraulic spiral drilling machine and the long spiral drilling machine.

The invention discloses a method for blocking a large-pipe-diameter rainwater pipeline through a short air bag. The method includes the following steps that firstly, the pipeline is strengthened, and a foundation pit is excavated; secondly, impurities are removed; thirdly, the short air bag is arranged, and fixing is firm; fourthly, the short air bag is connected with an air compressor; fifthly, a three-way air valve is checked; sixthly, pressurizing and inflating are conducted; seventhly, sealing is achieved; eighthly, after work is completed, the three-way air valve is adjusted, and exhausting is conducted; ninthly, the short air bag is pulled out. According to the method for blocking the large-pipe-diameter rainwater pipeline, the short air bag is used for blocking the drain pipeline, the problems that that great danger exists in the brick wall detaching work, blocked residues can be hardly removed thoroughly, rubbish mixed in fluid in the pipeline may block the pipeline, and the use safety of the pipeline is affected are solved, the purchase cost and the use cost are saved, the time cost of the construction progress is saved, various costs are reduced, the construction cost is reduced, the economic benefits are improved, underground unmanned work is achieved, the safety of workers is ensured, and the construction period is shortened.

The present invention discloses a mix-in-place train for bituminous pitch cold second birth cement fragmental stone which includes a scratch board feeder, an electric generating set on the train body, a power control cabinet, a water tank, a metering water pump, an emulsified bitumen tank, an emulsified bitumen pump, a powder screening machine, a stirring machine, a side charging belt conveyor and a total conveying belt, the train body also is equipped with a cement silo, a mineral powder tank, an aggregate recovering bin, a new aggregate bin, and down part of above container outlet are equipped with a cement and mineral powder metering screw conveyer connected with the total conveying belt for weight class matching, a recovering aggregate and a new aggregate electric feeder; the power control cabinet electrical connects with a walking variable frequency motor of the scratch board feeder, and electrical connects with the metering water pump, the emulsified bitumen pump, the recovering aggregate and new aggregate electric feeder, the cement and mineral powder metering screw conveyer. The recovering technique does not need cleaning, transporting, breaking and heating waste material which shortens construction period, saves material and transportation cost, and is easy to drive synchronously and disassembled.

The invention discloses a steel structure simple house that can be quickly disassembled and assembled in the technical field of steel structures, which includes a frame, a support rod is installed on the top of the frame, a sliding block is sleeved on the support rod, and the left and right sides of the sliding block The side is movably connected with a bracket, the left side of the bracket is movably connected with the first roof, the right side is movably connected with the second roof, the first roof and the second roof are connected by hinges, and the first roof and the second roof are movably connected. The bottom of the second roof is connected with a support column, and the bottom end of the support column is fixed to the top of the frame. The light steel structure fittings of the present invention have a high degree of industrialization and mechanization, a high degree of commercialization, and a fast on-site construction speed without affecting It is conducive to civilized construction to nearby residents. Compared with traditional brick-concrete structure houses, the wall thickness is smaller, which can increase the effective use area, and the light steel structure houses are light in weight and have good shock absorption performance.

The invention relates to a premanufactured superimposed rib floor for an assembly-type steel structure house. The premanufactured superimposed rib floor comprises a premanufactured superimposed floor at the bottom, wherein rib beams are arranged on the upper part of the premanufactured superimposed floor; a filling box body is arranged in a space defined by the rib beams; the rib beams are made of prefabricated reinforced concrete; cast-in-situ is adopted among the rib beams and steel beams at connection parts of the premanufactured superimposed rib floor and the steel beams; and the other rib beams and the premanufactured superimposed floor are cast in advance. According to the premanufactured superimposed rib floor for the assembly-type steel structure house, cast-in-situ is adopted for the rib beams and the steel beams at the connection parts of the premanufactured superimposed rib floor and the steel beams, so that a fireproof problem of connection joints of steel posts and the steel beams and the steel beams; the rib floor filled with light materials is adopted, so that a heat preservation effect is realized; premanufactured superimposed rib floor components are produced in a factory in advance, and are assembled on site, so that on-site construction speed is improved; circulation materials like a great number of supporting steel tubes, wood beams, web film multi-layer plates or bamboo plywood and the like are reduced; construction speed is improved; and construction cost is lowered.

The invention provides a ventilation and dustproof method used for tunnel construction. The ventilation and dustproof method comprises the following steps that 1, air ducts are arranged at the front of excavation working faces of a flat pilot tunnel, a main hole, and an inclined shaft and move forward with moving forward of each working face; 2, after the main hole is connected with a first transverse passage, a draught fan is arranged at the intersection of the main hole and the first transverse passage, the air ducts are respectively arranged on the second working face and the first workingface of excavation, and a jet flow draught fan is arranged in the flat pilot tunnel to induce airflow to a tunnel opening; and excavation is conducted to the two sides of the main hole after the inclined shaft communicates the main hole; and 3, two transverse passages nearest to the second working face are reserved between the main hole and the flat pilot tunnel, and the draught fan moves with excavation of the main hole to the intersection of the NTH transverse passage and the main hole. According to the ventilation and dustproof method, the air ducts and draught fans are arranged on the fiveworking faces of tunnel construction and excavation for ventilation and circulation, the position is adjusted and a line is laid according to the construction steps by using the air ducts and the draught fans, air duct direction turning and tapoff of the multiple air ducts in a tunnel with the complex structure are realized, and the loss of wind power is greatly reduced.

The invention discloses a single-pile-casing construction method for a static pressure sinking pipe carrier cast-in-place pile. A static pile driver and a single pile casing can be used for manufacturing the carrier pile; carrier concrete materials are put in at a time, the construction speed is obviously increased, and energy conservation and environment friendliness are achieved; and the pulling resistance of the carrier pile manufactured through the static pile driver and the single pile casing is obviously improved. The method includes the following steps that firstly, a field is cleaned, surveying and setting out are conducted, and the static pile driver is moved to a station; secondly, the steel pile casing provided with a conical valve pile tip is pressed to the designed elevation; thirdly, concrete with the amount needed by a carrier is put into the steel pile casing at a time; fourthly, the steel pile casing is pulled upwards to be exposed out of the ground, and the space formed by upward pulling of the steel pile casing is automatically filled with the put-in carrier concrete ; fifthly, the pile tip is closed, the steel pile casing is pressed downwards, the downward pressing force and the elevation reach preset values, and the carrier concrete is compacted to form an expanded carrier; sixthly, closing is automatically relieved, pile body concrete is poured, or a reinforcement cage is firstly placed, and then concrete is poured; and seventhly, the steel pile casing is pulled out of the ground while vibration is conducted, and the pile is formed.

The invention discloses a construction method of a steel-jacketed steel steam direct burial pipeline. The method comprises the following steps of construction preparation, pipeline transportation andhoisting in place, working pipe butt-joint installation, working pipe butt-joint welding, working pipe welded junction inspection, working pipe hydraulic pressure test, outer protection pipe and working pipe temporary fixing and dismounting, working pipe welded junction corrosion prevention and heat preservation, outer protection pipe joint welding, outer protection pipe joint welding inspection,outer protection pipe joint corrosion prevention, pipe ditch backfilling, and working pipe purge. According to the method, the whole set of mature and systematic construction method is continuously improved in the actual installation and construction process, the construction method is detailed in content, reasonable in standard requirement preparation, simple in process and reasonable in procedure, compared with conventional installation, the construction period is shortened, equipment machine-team use is saved, consumed materials are saved, the working efficiency is improved, material lossesare correspondingly reduced, the construction cost is reduced, civilized construction is facilitated, improvement of environmental protection measures is facilitated, labor, equipment and material cost are saved, and good economic benefits, social benefits and environmental benefits are generated.

The invention relates to pile foundation construction, in particular to a method for protecting walls of punching piles in soft sand geology. The method comprises the steps that 1, pile positions aremeasured on site according to a blueprint, and the pile positions are marked; 2, a site where piles are planned to be constructed are rolled flat and compacted through an excavator or a forklift, thedegree of compactness of an upper sand layer is ensured, a layer of clay being 30 cm thick covers the sand layer while rolling is performed, the clay is embedded in the sand surface layer, and the surface is made to be closed; 3, steel protection tubes being 2-3 meters long are installed at the pile positions according to different pile diameters, the diameter of the protection tubes is 10 cm larger than the pile diameters, and the portions, exposed out of the ground, of the protection tubes are 200-300 mm; 4, grouting construction is performed outside the protection tubes within the width range of one time of the pile radius with the center of each pile position as the circle center and the corresponding protection tube as the boundary, and the grouting depth is determined by the thickness of the soft sand layer; and 5, maintenance is performed after grouting is completed, and the formal punching pile construction stage is started after grout reaches a certain degree of strength. By means of the method, the problem that hole walls of the punching piles in the soft sand layer are prone to collapsing is effectively solved.

The invention provides a quick-setting self-leveling material capable of avoiding technical defects in the prior art. A preparation method comprises the following steps: S1, preparing raw materials ofself-leveling uniform mortar blocks, wherein the required raw materials comprise 35 to 40 units of high-alumina cement; 35-40 units of Portland cement; 5-8 units of quartz sand, 5-8 units of an accelerator are added; 5-8 units of semi-hydrated gypsum; 1-3 units of uniform mortar block; 1-3 units of limestone pebble; 1-2 units of a water repellent agent, 1-2 units of quicklime powder and 1 unit ofa coagulation agent; S2, preparing for plugging work after preparation based on the formula proportion in the step S1; S3, carrying out base layer treatment; S4, carrying out sealing treatment; S5, smearing an interface agent; S6, adding water into obtained cement self-leveling powder, and stirring, S7, adding water, and stirring to obtain a slurry; and S8, curing for a certain period. The quick-setting self-leveling material is suitable for rapid high-flatness terraces in airport halls, large restaurants, large markets, department companies, conference halls, exhibition centers, large offices, parking lots and the like, the application range is extremely wide, and the market prospect is promising.