35results about How to "Reduce the difficulty of construction work" patented technology

The invention provides a pipe pile-anchor rod composite foundation capable of bearing pulling and pressing bidirectional loads and a construction technology of the pipe pile-anchor rod composite foundation. The pipe pile-anchor rod composite foundation comprises a pipe pile and an anchor rod. An anchoring hole is reserved in a foundation bottom plate of a building structure, and a stretching end anchorage device is pre-buried in the anchoring hole. The anchor rod is composed of an anchor cable and a prefabricated anchor head, and the prefabricated anchor head is buried in soil below the foundation bottom plate. The upper end of the anchor cable penetrates out of the pipe pile to stretch into the anchoring hole, and is locked by the stretching end anchorage device after being stretched. The pipe pile is supported between the foundation bottom plate and the prefabricated anchor head, and the lower end of the pipe pile is fixedly connected with the upper end of the prefabricated anchor head. In the pipe pile-anchor rod composite foundation, the prefabricated anchor head is additionally arranged at the lower end of the pipe pile so that the pressure resisting bearing capacity of the pipe pile can be improved; a waterproof curtain is formed by the pipe pile with the two closed ends, the erosion effect of underground water and the like on concrete and steel can be resisted, and the impermeability and durability of the anchor rod, the pipe pile and foundation bottom plate joints can be improved; and structural reliability and stress performance are ensured, meanwhile, project quality can be effectively improved, the construction period can be shortened, and the investment can be saved.

The invention relates to a construction method of a hole opening superposed shear wall internally provided with a deep connecting beam of a diagonal reinforcing steel bar truss. The construction method comprises the following steps of manufacturing a prefabricated superposed shear wall in a prefabricating processing plant: when an integral reinforcement cage of the superposed shear wall is manufactured, placing two obliquely arranged reinforcing steel bar trusses in a cross manner between longitudinal stress reinforcing bars of a connecting beam, then connecting the reinforcement cages of theconnecting beam to reinforcement cage meshes in inner and outer blade prefabricated wallboards effectively, and finally pouring wallboard concrete to form the prefabricated superposed shear wall; andtransporting the manufactured prefabricated superposed shear wall to a construction site, and pouring core concrete and carrying out upper structure construction after the core concrete reaches certain strength to finish construction of the whole shear wall structure. The anti-shear ability of the superposed deep connecting beam is improved by means of the obliquely arranged reinforcing steel bartrusses, and a configured reinforcing steel bar truss bearing structure connected to superposed wall sheets is endowed with a novel effect of an internal force, so that the superposed deep connectingbeam can meet the structural stress and anti-quake demand under a circumstance of not adding extra reinforcing bars.

The invention provides a construction method of a road rock side slope. The construction method comprises the steps that rock and soil are excavated by an excavator, an appropriate amount of chiselingmargin is preserved, and first-time slopes are obtained on both sides of a road; a crusher is used for chiseling the first-time slopes in a top-down order, a part of the chiseling margin in the firststep is chiseled, that is, margin coarse chiseling is performed, and second-time slopes are obtained on both sides of the road; and the crusher is used for chiseling the second-time slopes in a top-down order, the remaining part of the chiseling margin in the first step is chiseled, that is, margin fine chiseling is performed, and formed slopes are obtained on both sides of the road. According tothe technical scheme, the construction method is mainly applicable to the construction operation of a road side slope without the need of the support, so that the slope surface of the rock side slopeformed after the construction is smoother, the appearance is more attractive, the construction operation difficulty is reduced, the investment in construction materials and manpower of enterprises isreduced, the construction quality and construction efficiency of the road side slope are improved, and a foundation for the subsequent construction process is laid.

The invention provides a quick construction method for a lower water tank subsection of a ship. The quick construction method comprises the steps that S1, longitudinal panels and longitudinal webs are machined; s2, outer plate longitudinal bones and inclined top plate longitudinal bones are obtained; s3, obtaining an insole assembly; s4, machining each rib plate frame; s5, obtaining an inclined top plate and an outer plate; s6, the inclined top plate and the inclined top plate longitudinal bone are hoisted; s7, the inner bottom assembly is hoisted; s8, a rib plate frame is hoisted; s9, outer plate longitudinal bones are hoisted; s10, hoisting an outer plate; in the production and machining process, the positioning datum lines are additionally arranged on all the parts and serve as positioning folding lines for follow-up small assembly installation, middle assembly installation and large assembly hoisting, through line-to-line positioning installation, the installation precision is guaranteed, the construction difficulty is lowered, and the production efficiency is improved. The problem that the installation position of the outer plate longitudinal bone is repeatedly adjusted due to the fact that the installation angle precision of the rib plate frame is not enough in the traditional segmented construction process is effectively solved, the segmented construction efficiency is greatly improved, and quick segmented construction is achieved.

The invention provides a ship outboard marking method and a ship planking. The ship outboard marking method comprises the following steps: determining a sub-plate to be surveyed in the ship planking according to the position of an outboard mark to be surveyed in the ship planking and an area covered by a to-be-surveyed outboard mark; carrying out outboard mark assignment on the to-be-assigned sub-plate; before the small assembly stage, completing the welding of the corresponding outboard marks on each split plate; S4, in the large assembly stage, enabling the outboard marks on the split plates to form a complete outboard mark after the ship planking is assembled. According to the method, a look-up welding method that construction workers take polyester paper to attach segmented outer plates upwards to mark outboard letters of the ship outer plates and carry out three-dimensional operation after a large segment is installed on a portal is replaced. According to the assignment method, the welding precision of the ship outer plate in the welding construction process can be improved, the working efficiency is improved, and the construction safety is guaranteed.

The invention provides a pipe pile-anchor rod composite foundation capable of bearing pulling and pressing bidirectional loads and a construction technology of the pipe pile-anchor rod composite foundation. The pipe pile-anchor rod composite foundation comprises a pipe pile and an anchor rod. An anchoring hole is reserved in a foundation bottom plate of a building structure, and a stretching end anchorage device is pre-buried in the anchoring hole. The anchor rod is composed of an anchor cable and a prefabricated anchor head, and the prefabricated anchor head is buried in soil below the foundation bottom plate. The upper end of the anchor cable penetrates out of the pipe pile to stretch into the anchoring hole, and is locked by the stretching end anchorage device after being stretched. The pipe pile is supported between the foundation bottom plate and the prefabricated anchor head, and the lower end of the pipe pile is fixedly connected with the upper end of the prefabricated anchor head. In the pipe pile-anchor rod composite foundation, the prefabricated anchor head is additionally arranged at the lower end of the pipe pile so that the pressure resisting bearing capacity of the pipe pile can be improved; a waterproof curtain is formed by the pipe pile with the two closed ends, the erosion effect of underground water and the like on concrete and steel can be resisted, and the impermeability and durability of the anchor rod, the pipe pile and foundation bottom plate joints can be improved; and structural reliability and stress performance are ensured, meanwhile, project quality can be effectively improved, the construction period can be shortened, and the investment can be saved.

The present invention relates to a vertical rectangular cooling furnace for sintered ore. The corner triangular area in the cooling furnace is provided with a corner wind suppressing device, and the surrounding wall areas in the cooling furnace are provided with a side wall wind suppressing and guiding device. The corner wind suppressing device comprises an upper base plate, a lower base plate and a vertical plate, the upper base plate and the lower base plate are arranged in parallel and are fixedly connected with the furnace body of the cooling furnace, and the vertical plate is connected with the upper base plate and the lower base plate. Fixed connection; the side wall wind suppression deflector includes a wind suppression deflector and track steel, the angle between the wind suppression deflector and the furnace wall is 35-50 degrees, and the wind suppression deflector The bottom edge of the lower bottom edge is close to the refractory material of the furnace wall, the upper top edge of the wind-suppressing deflector is fixedly connected to the waist of the rail steel, and one leg of the rail steel is fixedly connected to the bottom surface of the wind-suppressing deflector. The two sides of the wind-suppressing deflector are fixedly connected to adjacent vertical plates respectively. The sintered ore cooling effect of the invention is good, the flue gas temperature recovered from the top of the furnace is high, and the recovery and utilization efficiency of waste heat is high.

The invention provides a method for blocking upward pumping of a structure development type broken ore body under a water body, and belongs to the technical field of mining engineering. The method comprises the following steps: firstly, constructing a drift roadway on each of the two sides of the top outside the plane influence range of a stope area where caving possibly occurs along the trend of an ore body, constructing a transverse drift roadway on a hanging wall drift roadway by using a miniature shield tunneling machine, drilling grouting holes in the vertical, inclined upper and inclined lower positions of the two sides of the transverse drift roadway after the transverse drift roadway is tunneled, and drilling grouting holes in the vertical, inclined upper and inclined lower positions of the transverse drift roadway; after the grouting hole drilling operation is completed, high-pressure grouting is conducted; and after grouting work is completed, a folding type 3D printing columnar high-strength resin net is laid in the transverse drift roadway, and after the resin net is completely unfolded, the transverse drift roadway is filled with concrete slurry. Water can be prevented from entering the stope along the secondary fissures, manpower and financial resources of mine enterprises are saved, and safety and daily production of workers of the mine enterprises are guaranteed.

The invention provides a construction method of a road rock side slope. The construction method comprises the steps that rock and soil are excavated by an excavator, an appropriate amount of chiselingmargin is preserved, and first-time slopes are obtained on both sides of a road; a crusher is used for chiseling the first-time slopes in a top-down order, a part of the chiseling margin in the firststep is chiseled, that is, margin coarse chiseling is performed, and second-time slopes are obtained on both sides of the road; and the crusher is used for chiseling the second-time slopes in a top-down order, the remaining part of the chiseling margin in the first step is chiseled, that is, margin fine chiseling is performed, and formed slopes are obtained on both sides of the road. According tothe technical scheme, the construction method is mainly applicable to the construction operation of a road side slope without the need of the support, so that the slope surface of the rock side slopeformed after the construction is smoother, the appearance is more attractive, the construction operation difficulty is reduced, the investment in construction materials and manpower of enterprises isreduced, the construction quality and construction efficiency of the road side slope are improved, and a foundation for the subsequent construction process is laid.

The invention discloses a segment division design method for a G4 type rolling ship. The method comprises the following steps: A, basis: determining a whole ship segmented division principle and requirements; B, carrying out segmented division: dividing a cargo compartment roll-roll area into a bottom larboard segment, a middle segment, a starboard segment, broadside multi-layer larboard and starboard segments, multi-layer deck larboard and starboard segments, multi-layer ramp segments and multi-layer column segments; dividing a cargo hold cabin mixing area into a bottom full-width segment, multiple layers of larboard channel segments and one layer of starboard channel segment which are asymmetrical on the broadside, semi-three-dimensional segments and independent transverse bulkhead segments which are asymmetrical on the left side and the right side of the broadside cabin; dividing a cabin area into a left bulwark segment, a right bulwark segment, an independent complete square channel segment, left-right asymmetric deck segments, a larboard double-shell segment with asymmetric broadside, a starboard double-shell segment with asymmetric broadside, a cabin semi-three-dimensional segment with asymmetric broadside larboard and starboard, and a bottom full-width segment. The method is more scientific, reasonable and convenient, the integrity of the outfitting piece can be improved, and the dock period is shortened.

The invention discloses a folded type long-stroke drilling machine. A driving mechanism is loaded on a base, output ends of the driving mechanism are connected with a lifting mechanism and a rotary mechanism respectively, a vertical column is connected with the lifting mechanism and the rotary mechanism respectively, the vertical column comprises an upper support and a lower support, the upper support is arranged at the upper end of the lower support, and the lower portion of the lower support is rotatably connected with the driving mechanism or the base through a first rotary piece; the upper portion of the lower support is movably connected with the base through a flexible inclined strut, and the lower support is supported by expanding the flexible inclined strut or the lower support is laid down by shortening the flexible inclined strut; by means of the first rotary piece and the flexible inclined strut, a movable double-support structure of the lower support is formed; the lower end of the upper support is rotatably connected with the upper end of the lower support through a second rotary piece, and a rotating track of the upper support rotating around the second rotary piece and a rotating track of the lower support rotating around the first rotary piece are located in different planes; a fixing piece is arranged between the lower end of the upper support and the upper end of the lower support.

The invention discloses a super large diameter, hollow, independent and composite pile foundation and a construction method thereof. The composite pile foundation comprises a super large diameter thin wall reinforced concrete hollow pile, cement mixing piles, a pile end reinforced concrete thick plate and a pile surrounding grouted soil body, wherein the cement mixing piles surround the pile foundation to form a closed cement mixing pile wall; the super large diameter thin wall reinforced concrete hollow pile is made through section cast-in-place at the pile site or sectional splicing after prefabricating, and after the hollow pile body sinks to a designed position, the bottom end is sealed by concrete so as to form the hollow pile; after the formation of the hollow pile, high pressure jet grouting of cement grout is carried out at the part between the super large diameter thin wall reinforced concrete hollow pile and the cement mixing piles; and the pressure-injection of cement grout is further carried out at the bottom and the surrounding soil body of the hollow pile for reinforcement through pile bottom grouting pipes, horizontal grouting holes and vertical grouting holes, so as to form the composite pile foundation. According to the super large diameter, hollow, independent and composite pile foundation and the construction method thereof, a higher bearing capacity is achieved, the advantages of good pile quality and high safety are achieved, and meanwhile a better economic performance is achieved.

The present invention provides a normal construction method for the outer plate of a bow section of a ship, including: S1, making a side view and a cross-sectional view of the outer plate of the bow section and the frame line on the main hull; S2, obtaining a transverse section of the tire frame ; S3, obtain the cross-sectional view of each rib frame formwork; S4, process each rib frame formwork; S5, obtain the on-site operation plan of the frame frame; S6, process the column; S7, process the outer plate; S8, process the processed rib The tire frame formwork and the corresponding column are installed in small groups to obtain a rib formwork frame, and each obtained rib formwork frame is hoisted on the ground of the tire frame; S9, hoisting the outer plate; the present invention is based on the curve of each rib profile on the outer plate. The shape of the tire frame formwork ensures that the working surface of each tire frame formwork is closely attached to the outer surface of the outer plate, and the support stability during operation is ensured; in addition, the present invention adopts the normal construction mode to avoid the turning over of the traditional reverse construction mode work, improve construction efficiency and construction quality.

The invention discloses a quick installation method of a conical straight chimney, which comprises the following steps: setting a loose clamp type flip top on the bottom plate; welding a plurality of buttresses on the upper end of the bottom plate; lifting the first wall plate To the upper end of the support pier, a main beam is placed on the upper end of the sliding brackets of the two symmetrical loose-clip flip tops. The two ends of the main beam are welded with auxiliary beams; The belt wall is lifted; the third belt wall is hoisted to the upper end of the pier by a crane, and welded to form the third belt wall; the second belt wall is hoisted by a crane between the first belt wall and the third belt wall, and the second belt wall The belt wall is welded with the first belt wall and the third belt wall; adjust the length of the auxiliary beam so that one end of the auxiliary beam is welded with the third wall plate, and repeat the steps until the conical chimney is assembled; remove the buttress and use the anchor bolts Connect and fix the conical chimney to the bottom plate; hoist the straight chimney to the upper end of the conical chimney for welding; remove the support pipe and perform anti-corrosion treatment on the conical chimney.

The invention discloses an overall structure of a hypersonic wind tunnel with three branches connected in series, comprising branches that divide the Mach number simulation range of the hypersonic wind tunnel from 3 to 10 into three intervals, and the three branches are respectively large flow The low-pressure cold air branch, the large-flow medium-temperature and medium-pressure branch, and the medium-small flow high-temperature and high-pressure branch, the Mach number operating range of the large-flow low-pressure cold air branch is less than or equal to Mach number 4, and the high-flow medium-temperature and medium-pressure branch The Mach number operating range is greater than 4 and less than or equal to 7, and the Mach number operating range of the small and medium flow high temperature and high pressure branch is greater than 7 and less than or equal to 10; the overall structure of a three-branch series hypersonic wind tunnel provided by the present invention can be Through the method of step-by-step implementation, the requirements of advanced hypersonic wind tunnel for wide parameter simulation are realized; the operation status of the wind tunnel is convenient to switch, and the layout of the wind tunnel is simple, which is conducive to the safe operation and standardized management of the wind tunnel.

The invention discloses a construction method for a prefabricated cornice. The construction method specifically comprises the following steps of making preparations before construction; pre-burying main structural iron pieces; fabricating cornice components; constructing an operating platform; welding and mounting the cornice; specifically, prefabricating of the cornice components includes the steps of determining the sizes of components with different specifications according to prepared models, determining the sizes of the pre-buried iron pieces in the components at the same time, and determining the length and the welding sizes of internal pre-buried bars; preparing the corresponding pre-buried iron pieces according to the sizes of the pre-buried iron pieces; manufacturing mounting formworks and brushing a mold releasing agent; mounting the pre-buried bars and the corresponding pre-buried iron pieces in the mounting formworks; pouring ceramsite concrete and conducting vibration; using an iron trowel to conduct trowelling and surface finishing to ensure the surface achieve hydrophile effect; conducting demoulding after maintenance and conducting numbering; and conducting stacking according to the corresponding specifications.

The invention relates to a construction method for a composite shear wall with an opening and a built-in diagonal steel truss deep connecting beam, which comprises the following steps: a prefabricated processing plant manufactures a prefabricated composite shear wall, which is used to manufacture the overall reinforced skeleton of the composite shear wall , two obliquely arranged steel bar trusses are placed crosswise between the longitudinally stressed steel bars of the coupling beams, and then the steel bar skeletons of the coupling beams are effectively connected with the steel mesh pieces in the prefabricated wall panels of the inner and outer leaves, and finally the concrete of the wall panels is poured to form a prefabricated Composite shear wall: transport the prepared prefabricated composite shear wall to the construction site, pour the core concrete and wait for the core concrete to reach a certain strength, then carry out the construction of the superstructure to complete the construction of the entire shear wall structure. The present invention utilizes obliquely arranged steel bar trusses to improve the shear resistance of the laminated deep connecting beams, endows the structural steel bar trusses connected to the laminated wall pieces with a new function of bearing structural internal forces, and makes the laminated deep connecting beams without additional reinforcement Under the circumstances, it can meet the structural force and seismic requirements.