150results about How to "Reduce construction labor intensity" patented technology

The invention discloses a cyclically used temporary pavement platen, and a method for paving a temporary pavement therewith. The cyclically used temporary pavement platen is characterized in that: the platen comprises a modularized rectangular reinforced concrete slab (1); reinforcement mats (13) which are composed of a plurality of steel bars vertically extending and steel bars transversely intersecting are arranged in the reinforced concrete flat (1); the reinforced concrete slab (1) is provided with a plurality of uniformly-distributed grooves (11) that are close to the edges of the slab(1) and suspension hooks (12) hiding in the grooves (11), the suspension hooks (12) are anchored with the reinforcement mats, and tops of the suspension hooks (12) are slightly lower than the upper surface of the reinforced concrete flat (1). The size and the shape of the cyclically used platen match with those of standard roads, and the platen which is provided with suspension hooks therein and has the characteristics of convenience of lifting and simplicity of construction when the temporary road is paved allows cyclic utilization, and safety and environmental protection to be realized.

The invention discloses a pile head static cutting crushing method for a bored concrete pile; a plurality of cutting bodies are evenly and horizontally fixed around the vertical steel ribs of a steel reinforcement cage of the bored pile on the position where the concrete needs to be removed; the concrete is poured after the steel reinforcement cage is hung into the pile hole; the pile head concrete is pulled out by a hoisting device or is cleaned manually after the concrete hardens; the pile head static cutting crushing method is characterized in that the number and the distribution form of the cutting pieces are designed according the diameter of the bored pile; for the bored pile with the diameter less than 1000mm, the cutting pieces are distributed outside the vertical steel ribs; for the bored pile with the diameter more than 1600mm, the cutting pieces are distributed inside the vertical steel ribs and at least a support steel rib is arranged in the pile parallel to the cutting pieces; each support steel rib is fixed bound with a cutting body; besides, a cutting piece can be vertically fixed outside each vertical steel rib to realize the bidirectional cutting. The pile head static cutting crushing method for the bored concrete pile has the advantages of obviously reducing the construction cost and the labor intensity, shortening the construction period, preventing the vibration noise and the dust in the construction process, being applicable to the popularization and application of the construction industry.

The invention discloses a process for replacing an adhesive tape for an adhesive tape transporter of a coal mine main shaft loading chamber. The upper man loading space of a coal mine main shaft hoisting skip is utilized, a new adhesive tape is loaded into the skip man loading space on the ground of a wellhead, and the new adhesive tape is lowered to a fan-shaped gate of the lower opening of a loading chamber measuring hopper by the skip; the fan-shaped gate is opened and the new adhesive tape is hoisted into the measuring hopper; an old adhesive tape at an adhesive tape transporter driving roller is cut off at the upper opening of the measuring hopper, and the new adhesive tape is connected with the old adhesive tape below the adhesive tape transporter driving roller at the upper openingof the measuring hopper; the old adhesive tape on the other end is connected with the lower frame of the hoisting skip; the hoisting skip takes the new adhesive tape into the whole adhesive tape transporter by the power of a main shaft hoisting machine, and then joints are connected; a connection roadway between a horizontal coal mine underground big roadway and a main shaft mineshaft is utilizedto recycle the old adhesive tape to a flat vehicle, so that the whole old adhesive tape is recycled and reused and the whole adhesive tape replacing process is finished. The process invention has high adhesive tape replacing efficiency, and the whole process for replacing the adhesive tape costs not more than 2 hours.

The invention provides a titanium boride cathode coating paste for aluminum electrolysis, a preparation method and a coating method thereof. A coating paste with uniform and stable solid-liquid dispersion, which is suitable for air spraying and has viscosity of between 16 and 35s, is finally formed by optimizing a formula of the titanium boride cathode coating paste for the aluminum electrolysis and adjusting the composition structure. The cathode coating paste prepared by the preparation method can be sprayed by using an air spraying construction process; the process has the advantages of simple operation, uniform thickness and smooth surface of the coating prepared by the spraying, low labor intensity for the construction and high efficiency; the curing, roasting and heating of the coating conform to the roasting and heating conditions of an aluminum electrolysis cell and special roasting equipment and roasting process are not needed in the actual production and application, so the cost can be saved; in addition, the coating obtained by spraying has thickness of between 0.2 and 0.6mm, so the coating has high thermal shock resistance, prevents early falling of the coating, has high resistance against the corrosion of the aluminum liquid and electrolyte and has high wettability with the aluminum liquid.

The invention discloses an assembly-type underground cable trench based on comprehensive wiring of a city. The assembly-type underground cable trench is characterized in that according to the characteristics of the starting part, the straight part, the bent part, the narrowing part and the ending part of the underground cable trench, a cable inlet trench (101), a straight cable trench (102), a bent cable trench (103), a cable outlet trench (104), a straight narrowing cable trench (105), a bent narrowing cable trench (106) and a cable safety maintenance viewing port (107), all of which are respectively formed in an assembled mode, are installed at corresponding positions and are combined to form a closed underground cable trench transportation cable system. The assembly-type underground cable trench is the totally-closed system, has good compression resistance, impact resistance and water resistance to the outside, can be used for a long time at the temperature ranging from -50 DEG C to 100 DEG C without being damaged, and has good moisture resistance, acid and alkali resistance and corrosion resistance to the inside. Cables can be transported in a shielded and isolated mode.

The invention provides a gantry system of a tunnel lining trolley. The gantry system comprises a support frame, a gantry longitudinal beam, jacking mechanisms and transverse beam connecting beams. The support frame comprises a plurality of single support frame bodies, each single support frame body comprises a gantry transverse beam and two gantry upright columns, the two gantry upright columns of each single support frame body are symmetrically arranged, the gantry transverse beams are perpendicular to the gantry longitudinal beam and are positioned right above the gantry longitudinal beam, and the gantry upright columns are vertically arranged among the gantry transverse beams and the gantry longitudinal beam; the transverse beam connecting beams are parallel to the gantry longitudinal beam and are arranged on the gantry transverse beams; flange plates are arranged on the side surfaces of the gantry upright columns, and two groups of through holes which are used for mounting supporting jack seats and supporting cylinder seats are equidistantly formed in each flange plate; the jacking mechanisms are arranged at two ends of the gantry longitudinal beam. The gantry system has the advantages that the gantry system is simple in integral structure; the supporting jack seats and the supporting cylinder seats can be conveniently vertically adjusted owing to the through holes, so that requirements of different working conditions can be met, and the gantry system is high in practicality; supporting jacks and supporting cylinders can be flexibly mounted and adjusted, accordingly, the construction cost can be greatly lowered, and the labor intensity can be greatly relieved.

The invention relates to the technical field of blasting, in particular to an initiation method of deep hole blasting for dismounting a building, which is characterized by carrying out a deep holes arrangement design and a perforation construction, carrying out a time delay design of blasting detonators blasted in the deep holes and a construction of filling explosives in the deep holes, designing a time delay blasting of ground network detonators, and connecting detonators in blast holes with ground network detonators, wherein adjacent blast holes at detonation points are asymmetrically blasted. The pitch between arranged deep holes is 2.5-6.5m, the row spacing is 2.5-6.5m, and the depth deltah of the deep hole is 0-3.5m. Every two adjacent deep holes of the detonators among mainly control rows of deep holes are taken as one group, the delayed time of the first group of deep holes is 9-25ms, the delayed time of the second group of deep holes is 17-42ms, circulation is sequentially carried out; and the delayed time of the detonators among branch rows of deep holes is 42-100ms. The invention has the characteristics of large blasting amount, high detonation energy, little vibration,low cost, safety, reliability and the like.

The invention provides a cutter suction dredger over-water floating pipe hydraulic fast connector and relates to equipment based on over-water movable dredge pipe fast butt joint. The fast connector is suitable for fast butt joint of a cutter suction dredger and over-water dredge pipes (also known as over-water floating pipes) of a dredging hydraulic reclamation project, and saves time and labor. The over-water dredge pipe fast connector comprises a connector body, a connecting sleeve, a hydraulic transmission device and a steel belt collection and release locking device. The hydraulic transmission device is arranged on the outer surface of the connecting sleeve and connected with the steel belt collection and release locking device through a connecting device. When the hydraulic transmission device and the steel belt collection and release locking device are in a connection state, the connector body is locked in the connecting sleeve. According to the fast connector, in the construction process of paving the dredge pipes on water, a guiding function of a guiding device of a male connecting sleeve is utilized, and therefore unfavorable influence on butt joint due to the fact that stormy waves cause the dredge pipes to bump and rock is reduced, and fast butt joint of the over-water dredge pipes and fast butt joint of the over-water dredge pipes and the dredger can be achieved through tightening of a traction steel wire. Accordingly, the fast connector is widely suitable for paving of the dredge pipes on the water where water current flow states are turbulent and the stormy waves are strong.

The invention discloses an elastic pile foundation resistant to frost heaving damage. A top connecting module is installed above a frost heaving buffering module, a gravity column module is installed below the frost heaving buffering module, a lifting disc capable of axially sliding in a supporting shaft is installed in the supporting shaft of the frost heaving buffering module, a first rotating shaft seat is fixedly installed on the edge of the lifting disc, the first rotating shaft seat is in shaft connection with one end of a supporting cross beam, the other end of the supporting cross beam is in shaft connection with a second rotating shaft seat, the second rotating shaft seat is fixedly installed on an elastic buffer strip, a buffer net is fixedly installed on the elastic buffer strip, a lead screw is installed in the top connecting module, a driven gear is fixedly installed at the top end of the lead screw, the driven gear meshes with a driving gear, and the driving gear and a crank rotating shaft are fixedly installed. The elastic pile foundation resistant to frost heaving damage can be adjusted according to the actual frozen soil depth of a project; the elastic pile foundation resistant to frost heaving damage can adapt to repeated freezing and thawing, effectively prevent frost heaving and frost pulling, and has a lasting effect; complete dismantling and recycling can be achieved, and the influence on the environment is small; and modularized assembly facilitates later maintenance, and the maintenance cost is reduced.

The invention discloses a coach top side skin with a novel structure and a preparation method thereof. The coach top side skin comprises a reinforcing rib, an arc-shaped skin, a water flow channel and an upper window edge seam allowance; the arc-shaped skin is of an arc-shaped sheet structure and is positioned on the side edge of the top of a coach; the reinforcing rib is positioned in the position, approaching to a straight line, of the upper surface of top side skin and is connected with the upper edge of the arc-shaped skin; the water flow channel is made of a double-layer plate material, is positioned at the junction of the top of the coach and a coach window, and is connected with the lower edge of the arc-shaped skin; the upper window edge seam allowance is positioned below the water flow channel; the reinforcing rib, the arc-shaped skin, the water flow channel and the upper window edge seam allowance form a steel plate through rolling. The coach top side skin disclosed by the invention has the advantages of ingenious structure, low manufacturing cost, simple preparation process, low construction intensity, low maintenance cost and the like.

The invention discloses a mortar material storage method for a mortar pump machine, which comprises the following steps that: an ash hopper with the open top end and with a stirring device is prepared, the ash hopper is fixedly arranged onto a machine frame, and the inclined surface part of the ash hopper is provided with a material outlet pipe opening matched with a material inlet pipe of the mortar pump machine; a sieving assembly is prepared, the sieving assembly comprises a sieving box hopper, an electric vibrator and a filtering screen sieve, the sieving assembly is arranged on the machine frame through an elastic component and is positioned above one side of the ash hopper, the electric vibrator is fixedly connected onto the sieving box hopper, the top of the sieving box hopper is a material inlet, the filtering screen sieve is horizontally arranged in the sieving box hopper, the bottom of the sieving box hopper is provided with an inclined surface, a material outlet is arranged at the lower part of a side plate of the sieving box hopper corresponding to the tail end of the inclined surface, the material outlet is connected to the top of the ash hopper through a material outlet pipe or a material outlet groove with the gradually reduced width, and mortar materials enter the ash hopper through being filtered by the sieving assembly. The invention also discloses a mortar material storage device for implementing the method.

The invention discloses a hydraulic internal mold device for a concrete box girder. The device comprises a mold board system and a plurality of oil cylinders; the mold board system comprises a top mold and multiple moving molds sequentially distributed on the left side and the right side of the mold board system, the mold boards are connected through hinges to form an inner cavity shape of the box girder in an enclosing mode, and the oil cylinders are longitudinally hinged between every two mold boards. A connecting rod mechanism is hinged between every two adjacent moving molds, the connecting rod mechanisms and the moving molds hinged to the connecting rod mechanisms together form a multi-rod mechanism, the oil cylinders and the connecting rod mechanism which are arranged between every two adjacent moving molds are hinged into a whole, piston rods of the oil cylinders stretch out to enable the internal mold system to keep the inner cavity shape of the box girder, and the piston rods contract to enable the internal mold system to be closed in a folded mode. Due to the fact that the connecting rod mechanisms and the moving molds are hinged and both can rotate around the joints, strokes of the oil cylinders can be greatly shortened through application of the connecting rod mechanisms; accordingly, the mold board system can be folded and contracted in an inner cavity of the box girder in a large angle, and then one-time integrated demolding of the overall internal mold device can be successfully achieved.

The invention relates to a seepage draining system layered arrangement method for decreasing the seepage line buried depth of a tailings reservoir. The seepage draining system layered arrangement method comprises the following steps: (1) if the initial-stage dam elevation of the tailings reservoir is N meters, according to the tailings accumulation body beach face seepage draining condition, 1 ton layers of seepage draining blind ditches are formed in a layered mode and designed at different elevations of N+H meters, N+2H meters, N+3H meters, N+4H meters... and N+nH meters of a tailings accumulation dam, and the seepage draining blind ditches are parallel to the dam axes of sub dams and are away from the dam axes of all the stages of sub dams by M meters; (2) each layer of seepage draining blind ditch parallel to the corresponding dam axis is located in front of the corresponding stage of sub dam by M meters, and composed of peastone, a soft water filter pipe and a 400 g/m<2> wrappinggeotechnical cloth; (3) one end of each layer of water guiding pipe perpendicular to the corresponding dam axis is connected with the soft water filter pipe in the corresponding seepage draining blind ditch parallel to the corresponding dam axis through a tee joint; (4) tailings drawing and seepage draining system construction are independently and alternately conducted in a zoned mode; and (5) operation of the tailings reservoir is detected and repaired. According to the seepage draining system layered arrangement method, the seepage line buried depth can be decreased, and it is guaranteed that the dry beach length of the tailings reservoir meets the design specification requirements.

The invention relates to a cable laying construction device, in particular to a cable duct penetrating device. The space inside a cable duct is limited, and the novel cable duct penetrating traditional construction mode is low in efficiency, high in difficulty and likely to damage an old cable. According to the technical scheme, the device comprises two sets of outside pipe pulley supporting pieces, a threading pipe, at least two inside pipe pulleys, a traction rope and a cone cover; the threading pipe is formed by connecting multiple monomer sleeves, and in the working state, the two sets ofoutside pipe pulley supporting pieces are located above the two ends of the threading pipe; clamping bases at the two ends of the threading pipe are each fixedly provided with one inside pipe pulley through a support in a clamped mode; the traction rope penetrates through the threading pipe to wind around the inside pipe pulleys and the two sets of outside pipe pulley supporting pieces in sequenceto form annular connection; the cone cover is detachably installed at one end of the threading pipe. The device is simple in structure, convenient to disassemble and assemble, convenient to use and carry, and capable of enabling multiple cables to penetrate through the cable duct at a time, lowering construction difficulty and labor intensity, improving the working efficiency and avoiding the phenomenon that an old cable is damaged in the threading process.

The invention relates to a sonar video amphibious detection system for pipelines. The sonar video amphibious detection system comprises an amphibious image module, a central control module and a display module. The amphibious image module obtains pipeline sound wave information and pipeline image information of a pipeline to be detected; the central control module comprises a decoding unit, a cutting unit, an identification unit and a superposition unit; the decoding unit is used for performing decoding processing on the pipeline wound wave information and the pipeline image information, respectively; the identification unit identifies a boundary of the pipeline to be detected and a liquid level position within the pipeline; the cutting unit is used for performing twice cutting on the pipeline sound wave information; the superposition unit is used for superposing the pipeline sound wave information and the pipeline image information after twice cutting. The sonar video amphibious detection system for pipelines are capable of simultaneously detecting overwater image videos and underwater sonar videos of the pipelines without discharging water from the pipelines; as a result, equipment cost and construction labor intensity are reduced; synchronization of the overwater image videos and underwater sonar videos is realized; the detection efficiency of the pipelines and the accuracy of detection results are improved.

The invention discloses an integrated window sidetrack drilling tool which comprises a hollow cone mill bit, wedge deflection tool tapered iron and a setting and anchorage device which are sequentially connected. A liquid guide pipe is arranged in the wedge deflection tool tapered iron. The lower end of the liquid guide pipe is connected with a jet pipe in the setting and anchorage device. A setting ball is arranged at the lower end of an inner hole of the jet pipe. The upper portion of the setting ball is clamped to the annular upper clamping edge of the jet pipe. A limiting structure or limiting adhesive tape is arranged at the lower end inside the jet pipe. The setting ball is clamped to the upper clamping edge during downward drilling. An annular lower clamping edge is arranged at the lower end of an inner hole of a lower cone body of the setting and anchorage device. During setting operation, the setting ball breaks through the limiting structure or the limiting adhesive tape under pushing of a high-pressure drilling fluid and falls off to be clamped to the lower clamping edge to achieve setting. By adoption of the integrated window sidetrack drilling tool, the situation that the drilling fluid in a drill stem in the downward drilling process generates excited pressure, and halfway error setting is caused can be avoided, the situation that tripping-out is too fast, pumping is generated, and halfway error setting is caused can also be avoided, operation is reliable, the operating efficiency can be improved, and the operating cost is lowered.

The invention discloses a heating furnace water beam binding method. A fixing block is arranged on the outer surface of a furnace bottom water pipe. A semi-cylindrical precast block A and a semi-cylindrical precast block B are prepared from heat insulating materials with the heat conduction coefficient smaller than 1.0 w/m.k and are matched to form a cylinder, and a groove in the same size as the fixing block is arranged in the cylinder. The precast block A and the precast block B are installed on the outer side of the furnace bottom water pipe, and the groove inside is rightly matched and connected with the fixing block, and finally the connecting position of the precast block A and the precast block B and the combination positions of the precast block A, the precast block B and the furnace bottom water pipe are sealed with high-temperature cement gum.