37results about How to "Improve construction productivity" patented technology

The invention discloses a cooling device and a cooling method for shield tunnel construction, wherein the cooling device comprises a refrigeration system and an air cooling system which are disposed in a tunnel, and a shield circulating water system disposed outside the tunnel; the refrigeration system is connected with the air cooling system to provide the air cooling system with a cooling source; the air cooling system performs cold and heat exchange with the natural wind sent from the ground for cooling the natural wind; the shield circulating water system is connected with the cooling system to cool the refrigeration system. By adopting the cooling device to cool the natural wind sent into the tunnel, the working environment of the construction workers in the shield tunnel is improved,the safety of the construction personnel is ensured, and the production enthusiasm of the workers is also obviously improved, thereby facilitating improving the construction production efficiency.

The invention discloses an integrated leveling construction method for a translation type hatch cover system of a large ocean-going bulk cargo ship. The integrated leveling construction method comprises the following steps: 1, manufacturing a special jig frame on a foundation flat ground; 2, splicing a hatch coaming steel structure on the special jig frame, 3, pre-assembling a hydraulic power pipeline and a cable system on the foundation flat ground, 4, installing the hatch cover on the hatch cover steel structure; 5, installing a reinforcing plate on the hatch cover system, hoisting the hatchcover system to a deck to be assembled, assembled and welded, and fixing a pre-assembled hydraulic power pipeline and a cable system to the hatch cover system and the deck through clamping sleeves. The construction environment coefficient, the construction safety coefficient, the construction production efficiency and the productivity are all improved. A great effect is achieved on preassembly maximization of modern shipbuilding enterprises, the shipbuilding period is shortened, the process precision is guaranteed, and the requirements of ship inspection and shipowners are met.

The invention relates to the technical field of building construction. The invention relates to a management system, in particular to a construction progress management systemIncluding a controller, the controller is electrically connected with an information memory; the controller is electrically connected with an information acquisition module; the information acquisition module is used for acquiring construction progress information; the data importing module is used for importing construction progress information; the information acquisition module is electrically connected with a wirelessreceiving and transmitting module; the wireless receiving and transmitting module is connected with the information acquisition equipment; Data acquisition, wherein the controller is electrically connected with a progress management module, the controller is electrically connected with a three-dimensional model generation module, the three-dimensional model generation module is a three-dimensional model established according to collected information and can visually know the progress of a project, the controller is electrically connected with an information analysis module, and the information analysis module is electrically connected with an image recognition module. The invention further provides a method for managing the building construction progress. The device is simple in structureand worthy of popularization.

The invention discloses a damping spring vibration isolator device with expansion sleeves. The device comprises an upper bearing plate component, wherein the upper bearing plate component and a lower bearing plate component are connected with an upper sleeve and a lower sleeve for mounting a damper component; the upper and lower ends of the damper component are connected into the upper sleeve and the lower sleeve through the expansion sleeves respectively; the bottom of the lower bearing plate component is connected with a height adjusting component. A mounting and adjusting construction method of the damping spring vibration isolator device with the expansion sleeves comprises the following steps: assembling the damping spring vibration isolator device with the expansion sleeves; arranging the damping spring vibration isolator device with the expansion sleeves at an equipment foundation; adjusting height, releasing pre-compression of the spring and adjusting the height again. The damping spring vibration isolator device with the expansion sleeves can be locked after the upper and lower bearing plate components and the spring are assembled and the pre-compression is applied, and is convenient to assemble and reliable to connect; the length of the damper and the height of the vibration isolator are rational; the damping spring vibration isolator device with the expansion sleeves is adjustable in height; the mounting and adjusting construction method is simple and convenient; the precision is guaranteed; the construction efficiency is favorably improved; the construction period is shortened.

The invention provides a construction method for drainage and protection of a high cutting slope side ditch, a cutting intercepting ditch adopts a V-shaped structure, a slope adopts a trapezoidal structure, and the construction method comprises the following steps: carrying out construction lofting; construction of an intercepting ditch is conducted; excavating the cutting soil layer by layer; the slope in a preset range from the bottom elevation of the drainage ditch to the top is subjected to mortar rubble masonry slope protection; installing a water drain pipe in the mortar rubble; the slope surface, close to the roadbed, of the side ditch is constructed through cast-in-place concrete or a prefabricated panel, and the bottom of the side ditch is made of cast-in-place concrete. The slope form mainly comprises main structures such as the prefabricated concrete panel, the slope protection slurry rubbles, the drainage holes and the geotechnical cloth isolation layer, and the cutting slope protection and water interception and drainage effects can be effectively improved through the side ditch and protection slope combination form; the problem that the scouring phenomenon exists in transition connection of an existing V-shaped side ditch or U-shaped side ditch and side slope protection is solved.

The invention discloses a light partition wall, which comprises standard formworks. Each standard formwork comprises a light steel keel and two face plates, wherein the light steel keel is located between the two face plates; the face plates and the light steel keels are connected through bolts; the two opposite edges of the light steel keels are provided with overlaid parts which can be mutuallymatched; and the face plates do not cover the small ends of the overlaid parts. The light partition wall achieves the purposes that the light partition wall can replace a bricked partition wall and atraditional light steel keel partition wall manufactured on a field, assembling is convenient and quick, labor force is saved, and the construction and production efficiency is improved; and meanwhilethe house space is saved.

The invention relates to an assembled supporting frame for prefabricated stair performance detection. The assembled supporting frame comprises a height-adjustable bearing beam. The bearing beam is used for bearing a prefabricated stair, and the two ends of the bearing beam are detachably connected with supporting pieces. The bottoms of the supporting pieces are detachably connected with stabilizing supports. The height of the bearing beam can be adjusted according to the height of a prefabricated stair component, the assembled supporting frame is suitable for prefabricated floor components with different sizes, the effect that the device is recycled is achieved, different supporting devices do not need to be designed for the components with different sizes, the detection cost of the prefabricated stair component can be effectively reduced. Moreover, the assembled supporting frame is simple in structure, convenient to use and low in manufacturing cost, all components can be disassembledand assembled to achieve the purposes of convenient transportation and on-site installation, rapidness and convenience are achieved, and therefore the completion efficiency of performance testing ofthe prefabricated stair component can be greatly improved, and the improvement of the construction production efficiency of a prefabricated building is promoted.

The invention relates to a TBM gripper shoe concrete precast block device and a gripper shoe tight-holding method using the device. A precast block is formed by rebar and concrete, the shape of the precast block is matched with the shape of a gripper shoe, the precast block further comprises a fixing rebar part, one end of the fixing rebar part is embedded into the TBM gripper shoe concrete precast block device, when a TBM comes across the conditions that the rock is instable or collapse occurs in excavation construction, the other end of the TBM gripper shoe concrete precast block device is fixed on the gripper shoe by the aid of the fixing rebar part, a gripper cylinder can fix the gripper shoe on the tunnel wall by the TBM gripper shoe concrete precast block device, the excavation construction can be recovered rapidly, efficiently, safely and stably, the construction production efficiency of a construction enterprise is improved, and the construction cost is saved.

The invention is an auxiliary device for controlling installation spacing of steel bars. The device comprises a plurality of uprights, several cross beams and several steel bar fixing units, wherein the bottoms of the uprights are supported on the ground, the cross beams are fixedly connected to the plurality of uprights and the connection position can be adjusted, the steel bar fixing units are used for limiting the steel bars, the steel bar fixing units are fixedly connected to the uprights and/or the cross beams and the connection position is adjustable. The uprights and/or the cross beamswhere the steel bar fixing units are located are provided with a scale for displaying spacing between the adjacent steel bar fixing units. According to actual needs of a site, the device can be used to install and bind a steel frame, a stirrup, and a horizontal bar, relative positions of the uprights and the cross beams and the positions of the steel bar fixing units can be adjusted, after one-step assembly is completed, applying to steel bar mounting operation of various steel layout modes can be realized, a range of applications is wide, labor costs are saved, unqualified rework is avoided,and the construction production efficiency is greatly improved.

The invention discloses a hoisting method of an FPSO living quarter module. The hoisting method comprises the living quarter module, a floating crane and a lifting hook, the lifting hook is arranged on the floating crane, and hoisting pads and triangular plate reinforcing structures are installed at the top of the living quarter module in a segmented manner. The hoisting method comprises the following steps that the living quarter module is carried through a slide and is hoisted onto a ship through the floating crane, during hoisting, the hoisting pad at the top of the living quarter module isconnected with the lifting hook through four groups of steel wire ropes, a double-pulley block and shackles; and ahoisting pad steel wire rope is directly hoisted on the lifting hook, and the hoisting pad steel wire rope and a steering steel wire rope respectively penetrate through pulleys at the two ends of the double-pulley block to be connected. The hoisting method of the FPSO living quarter module has the beneficial effects that the requirement for large-tonnage steel wire ropes is reduced, material waste caused by manufacturing of a hoisting beam is reduced, the dock period of the livingquarter module carried by a gantry crane in a dock is shortened, the shipbuilding production efficiency is improved, and complete building and overall installation of a living quarter are promoted.

The invention discloses a construction method for preparing an engineering bag by curing marine sludge, and relates to the technical field of sludge treatment, and the key point of the technical scheme is that the construction method comprises the following steps: S1, preparing curing agent slurry; S2, taking the marine mud flat sludge and putting the marine mud flat sludge into a sludge pretreatment box for stirring; S3, conveying a curing agent and the pretreated sludge into a flow-state solidified soil stirring tank to be stirred; S4, introducing a proper amount of water into the flow-state solidified soil stirring tank for mixing and stirring; S5, conveying the curing agent and the slurry in the flow-state solidified soil stirring tank into a flow-state solidified soil conveying tank for secondary stirring; S6, spreading an engineering bag, and connecting the flow-state solidified soil conveying tank with a filling opening of the engineering bag through a mud conveying pipeline; and S7, using the slurry pump for conveying the flow-state solidified soil into the engineering bag through the slurry conveying pipeline, and producing the engineering bag. According to the method, the engineering bag can be filled with the flow-state solidified soil rapidly prepared from the marine sludge, the cost is saved, the sludge and water resources are reasonably utilized, and the effect of saving resources is achieved.