44results about How to "Improve the level of construction technology" patented technology

The invention provides a novel manufacturing and installing method for a cable holder. Holes are formed in the cable holder according to a certain technological standard, cable grooves, hoops, reinforcing ribs, fireproof division plates and the like can be arranged on supporting arms of the holder as needed, reserved holes are formed in the two walls of a cable trench, and then the cable holder and the walls can be assembled and disassembled fast through expansion bolts. Through material selection, premachining, accessory addition and preliminary combination of the cable holder, the installation procedure can be achieved at one step, so that the labor and the time are saved, the cost is saved, the problem that installation, maintenance, fixation, rust prevention, fire prevention and the like of an existing cable holder are difficult is solved, and the whole cable holder is stable, scientific in design, convenient to manufacture and install, safe and practical. Thus, the novel manufacturing and installing method is worthy of popularization and application.

The invention discloses a comprehensive construction method for a pre-cut groove loop-sealing double-wall steel cofferdam deep water foundation. The method includes the following steps that (1) a trestle and a platform are set up; (2) pile foundation construction is performed; (3) a rotary excavating drill is used for precutting of grooves in a riverbed at the double-wall steel cofferdam blade foot position; (4) cofferdam splicing is conducted; (5) a cofferdam tripping system and a continuous jack are installed; (6) cofferdam tripping is carried out; and (7) the cofferdam bottom is sealed. According to the comprehensive construction method for the pre-cut groove loop-sealing double-wall steel cofferdam deep water foundation under complicated geological conditions, the construction technological level is perfected and improved, the purpose that the construction technology is advanced, reasonable, economical and safe is achieved, experience is provided for similar construction, and an important guiding function is provided for deep water foundation construction and cofferdam construction works.

A plateau mountain foundation pit excavation construction device comprises a braced frame. The braced frame is provided with a walking supporting mechanism and a supporting frame. The supporting frame is perpendicularly provided with a sliding way rack. A lifting support is arranged at the upper end of the sliding way rack. A sliding way is perpendicularly arranged in the sliding way rack. The sliding way rack is provided with a double-stepping transmission mechanism. A rotary driving device connected with the double-stepping transmission mechanism is arranged in the sliding way in a sliding mode. The power output end of the rotary driving device is connected with a drilling device. An excavation mechanism and a soil lifting mechanism are arranged at the lower end of the driving device. According to the plateau mountain foundation pit excavation construction device, design is reasonable, the automation degree is high, manual labor intensity is fully relieved, the safety degree and the reliability degree are high, and work efficiency of excavation of pile holes is improved; according to a line project pile hole foundation excavation mode, the research on foundation fit excavation mechanical operation machines and tools for a plateau mountain transmission line special foundation is conducted, the device is made to meet the technical requirements of a line construction excavation pile foundation, and the construction mechanization degree and construction efficiency of an alternating current transmission line project are improved.

The invention relates to a drilling, excavating and soil lifting device of plateau mountain land foundation pit excavation construction equipment. The drilling, excavating and soil lifting device comprises a support framework, wherein a support frame is arranged on the support framework; two slideway frames are vertically arranged on the support frame; an ascending and descending bracket is arranged between the upper ends of the two slideway frames; a slideway is vertically arranged in each slideway frame; a doubling transmission mechanism is arranged on the slideway frames; a rotation driving device connected with the doubling transmission mechanism is glidingly arranged in the slideways; the power output end of the rotation driving device is connected with a drilling mechanism; and the lower end of the drilling mechanism is provided with an excavating mechanism and a soil lifting mechanism. The drilling, excavating and soil lifting device has the advantages that the design is reasonable; the automation degree is high; the work intensity of workers is sufficiently reduced; the safety degree and the reliability degree are high; the work efficiency of pile hole digging is improved; according to a line project pile hole digging foundation type, the study on plateau mountain land electric transmission line special basic foundation pit mechanization operation machine tools is developed, so that the technical requirements of line construction hole pile foundation digging are met; and the construction mechanization degree and the construction efficiency of an alternating current transmission line project are improved.

The invention provides a digging and soil lifting device for plateau mountain foundation pit digging construction equipment. The digging and soil lifting device comprises a support framework, a guide drill rod, a digging mechanism and a soil lifting mechanism, wherein a support frame is arranged on the support framework; two slide passage frames are vertically arranged on the support frame; the upper ends of the two slide passage frames are provided with an ascending and descending support frame; and the outer surface of the guide drill rod is symmetrically provided with two guide rails in the axial direction. The digging and soil lifting device has the advantages that the design is reasonable; the automation degree is high; the work intensity of workers is sufficiently reduced; the safety and reliability degree is high; the work efficiency for digging pile holes is improved; according to the basic line engineering pile hole digging mode, the study on a special basic foundation pit digging mechanical operation machine tool of plateau mountain power transmission lines is developed, so that the technical requirements of line construction hole pile foundation digging can be met; the construction efficiency and the engineering construction mechanization degree of alternating current power transmission lines are improved; and the hole pile digging foundation construction technical level is promoted to be further improved.

The invention discloses a building shading cast-in-place concrete lattice wall and a construction method of the building shading cast-in-place concrete lattice wall. The building shading cast-in-place concrete lattice wall comprises a concrete cast lattice wall body and steel reinforcements pre-embedded in the wall body. The construction method of the building shading cast-in-place concrete lattice wall comprises the following steps: 1), manufacturing and mounting a template, wherein the template comprises an outer side template and an inner side template spliced with each other, and a plurality of core templates clamped and fixed between the outer side template and the inner side template; wherein each core template comprises a keel and an inclined supporting structure in the keel; 2), manufacturing the steel reinforcements layer by layer according to the cast layer level of the concrete of the lattice wall; 3), constructing the concrete layer by layer; and 4), disassembling the templates and maintaining the concrete. According to the building shading cast-in-place concrete lattice wall and the construction method, the concrete surface of the building shading cast-in-place concrete lattice wall is not necessarily decorated, and the natural performance and artful texture of the concrete are shown, in this way, the purposes of strengthening the artistic effect, saving the construction cost and shortening the construction period are fulfilled.

The invention discloses a stratum hierarchical displacement monitoring method. Hierarchical displacement is monitored by means of combining single-point displacement gauge and hydrostatic water gauge, measuring points of different depth in the longitudinal direction are converted to the same place through a coordinate transformation mode, and the purpose of hierarchical displacement is realized. The method includes the steps of 1), arranging a hardening platform in the positions of the earth's surface of measuring points so as to have monitoring facilitated; 2), drilling for excavation and mounting the single-point displacement gauge; 3), after mounting of the single-point displacement gauge, welding a clean tripod to the side wall of a steel cylinder and then mounting the hydrostatic water gauge; 4), connecting cables led out from the single-point displacement gauge and the hydrostatic water gauge to an automated collection unit for real-time monitoring.

The invention discloses a reinforcing steel bar sleeve glue pouring connection structure. The connection structure comprises a sleeve and a binder used for connecting reinforcing steel bars, the two ends of the sleeve are each provided with a connector facilitating insertion of the reinforcing steel bars, the middle of the sleeve is further provided with a pouring hole used for pouring the binder, and a screw thread used for increasing the bite force of the binder is further arranged in the sleeve. During use, through the steps of sleeve installation, binder inspection, binder pouring, maintenance, fixing material removal, quality inspection and the like, the steel bars are connected, the bonding effect of the binder is fully played, the defects of steel bar welding and mechanical connection are overcome, the construction is feasible, the quality is ensured to be reliable, and the economical efficiency is high.

The invention discloses an opening-closing type salvaging device for dilled pipe drill bits. A housing is a thin-wall cylindrical tapered barrel; a limiting rod passes through from a housing; an upper limiting bolt and a lower limiting bolt are welded on the limiting rod; four rod outlet windows are vertically formed in the side wall of the housing; two connecting rods are separately welded horizontally in two vertical inside centers of the rod outlet windows; guide slide sleeves are hinged between the two connecting rods in the rod outlet windows by taking the side wall as the center; a limiting slide sleeve is arranged between the upper limiting bolt and the lower limiting bolt of the limiting rod; movable rods are connected to the limiting slide sleeve in a manner of enabling a fixing rod to pass through a horizontal hole; the four movable rods on the limiting slide sleeve separately pass through four guide slide sleeves in corresponding directions to get out from the housing. The limiting slide sleeve upwards slides along the limiting rod, the movable rods are opened and the limiting slide sleeve downwards slides along the limiting rod, so that the movable rods are closed. The device realizes multi-angle all-around salvaging work for multiple drill bits in drilled holes and karst caves, and has great significance on improving the technical level of pile foundation construction.

The invention discloses equipment for resisting floating and sinking of a capsule under-reamed anchor. Floating and sinking of the capsule under-reamed anchor in a grouting process can be prevented bya guide screw connected with a capsule under-reamed anchor body, an anti-sinking controller on the guide screw, a steel beam and a fixing screw in an anti-floating unit as well as an anti-floating controller, a first clamping piece and a second clamping piece which are arranged on the fixing screw, so that height of the construction anchor exposed out of the horizon can be the expected height, welding or cutting is not needed any more, construction period is shortened, technological level of construction is increased, and materials and labor cost are saved. The invention further discloses a use method of the equipment for resisting floating and sinking of the capsule under-reamed anchor.

The invention discloses a guide limiting block for a pipe shoe and an installation method of the guide limiting block. The contour of the cross section of the guide limiting block is in a trunk shape, and the guide limiting block comprises a connecting edge, an inwards-concave section, a guide edge, a limiting edge and an outer contour edge which are connected end to end in the clockwise direction; the connecting edge, the inwards-concave section, the guide edge, the limiting edge and the outer contour edge extend in the thickness direction to form a connecting face, an inwards-concave face, a guide face, a limiting face and an outer contour face respectively; the guide limiting block is of a trunk-shaped structure, the connecting face is used for fixing, the inwards-concave face enlarges the gap between the guide limiting block and a pipe shoe bottom plate, welding and coating are facilitated; the guide face and the limiting face are arranged to limit the movement direction of the pipe shoe bottom plate and a pipeline, the guide and limiting effects are achieved, installation is convenient, and the construction procedure is optimized; and by applying the guide limiting block, the problem of corrosion prevention dead corners of the guide limiting block of a pipe shoe of a process pipeline of an offshore oil platform is solved, potential engineering quality hazards can be effectively avoided, and the effects of reducing economic cost and facilitating installation are achieved.