1087 results about "Conductor pipe" patented technology

The invention discloses a pouring pile pouring device for construction and a using method thereof. The pouring pile pouring device for construction comprises a guide pipe, a pouring pile and a pouring pile, the concrete pumping unit comprises a variable frequency motor, a two-way hydraulic pump and a conveying pipeline wrapped with a heat preservation layer, and the conveying pipeline is in sealed connection with the top of the guide pipe through a flange plate; the pile frame supporting unit comprises a supporting frame with a lifting mechanism and a guide pipe fixing clamp integrated with a tilt angle sensor, and the fixing clamp is hinged to the supporting frame and dynamically adjusts the perpendicularity of a guide pipe through a servo motor; and the intelligent control unit comprises a distributed pressure sensor group, a multi-mode burial depth detection module and a central controller, a concrete rheological model is arranged in the intelligent control unit, and the rotating speed of the variable frequency motor and the lifting speed of the guide pipe are dynamically adjusted according to sensor data. The construction efficiency, the pile foundation quality and the complex geology adaptability are effectively improved, meanwhile, the construction cost and risks are reduced, and wide application prospects and economic benefits are achieved.

The invention discloses a surface welding device for hardware machining, and relates to the field of hardware welding, the surface welding device comprises a welding mechanism, a displacement mechanism, a transmission mechanism, a clamping mechanism, a liquid spraying mechanism, an ash removal mechanism, a workbench, an upper frame, first hardware and second hardware, and is characterized in that a bottom through frame is formed in the middle of the bottom end of the workbench; the surface welding device for hardware machining comprises a workbench, an upper frame is arranged at the top end of the workbench, an electric control box plate is arranged at the top end of the upper frame, second hardware is arranged on one side of the top end of the workbench, and first hardware is arranged on the other side of the top end of the workbench. The auxiliary rotating rod and the half gear are rotated, the unique half gear structure drives the movable block to horizontally move, then the push rod pushes the push piece in the piston cylinder, and scaling powder liquid is rhythmically sprayed to the hardware connecting position from the liquid box through the upper guide pipe and the water spraying pipe.

The invention relates to the field of tunnel supporting, and discloses a large pipe shed and advanced small pipe combined tunnel supporting system and a construction method. The tunnel support system comprises a plug wall; a large pipe shed supporting structure; provided is an advanced small pipe supporting structure. The construction method of the tunnel supporting system comprises the steps that S1, the plug wall is constructed, and the guide pipe is pre-buried; s2, a guide pipe is installed; s3, drilling is conducted, pipe shed steel pipes of the large pipe shed supporting structure are installed, and then grouting reinforcement is conducted; s4, a drilling machine is positioned, and follow-pipe drilling is conducted along the guide pipe; s5, holes are cleaned, and grouting of the pipe shed steel pipes is completed; s6, drilling and reserving a slot position of a guide steel pipe of the advanced small guide pipe supporting structure; s7, a guide steel pipe of the advanced small guide pipe supporting structure is installed, and then grouting reinforcement is conducted; and S8, excavation of a tunnel hole body is carried out. The large pipe shed is combined with the advanced small guide pipe, the bearing capacity of the tunnel arch and the consolidation effect of surrounding rock are remarkably improved, and the influence of construction on the existing viaduct pier is effectively reduced.

The invention discloses a construction method for a cast-in-situ bored pile in a collapsible loess stratum, and relates to the technical field of cast-in-situ pile construction.The construction method comprises the following steps that a construction site is cleaned and leveled; pile hole position coordinate points are determined through pile foundation positioning and in cooperation with survey lofting; a pile casing is placed through excavation and burying construction; configuring a drilling machine to be stable in position, and adjusting a drilling center point of the drilling machine based on the pile casing; carrying out rotary drilling to form a hole based on a hard soil layer; reverse circulation drilling and hole forming are carried out based on the sand soil stratum; primary hole cleaning treatment is carried out on the rotary excavating and reverse circulation drill holes which are checked to meet the indexes; manufacturing a reinforcement cage and lowering and positioning the reinforcement cage corresponding to the pile position; a guide pipe for concrete pouring is installed based on the pile hole; a gas lift reverse circulation slurry channel is constructed for secondary hole cleaning; configuring a guide pipe and pouring concrete to form a pile. The problem that in the prior art, safety and stability are not high when a pile is drilled in a collapsible loess stratum is solved.

The utility model discloses a wire rod pipe penetrating mechanism used for a double-head shell inserting machine, comprising a wire feeding pipe penetrating transverse moving module and a pipe cutting module, the wire feeding pipe penetrating transverse moving module is provided with a transverse moving assembly, the upper end of the transverse moving assembly is provided with a wire feeding assembly, the upper end of the wire feeding assembly is provided with at least two pipe penetrating heads, and the pipe cutting module is provided with a supporting seat. A pipe cutting die holder is arranged at the front end of the supporting seat, an upper cutter and a lower cutter correspondingly matched with the upper cutter are arranged at the upper end of the pipe cutting die holder, pipe supporting holes correspondingly matched with the pipe penetrating head are formed in the front ends of the upper cutter and the lower cutter, a pipe feeding lower driving wheel is arranged at the rear end of the pipe cutting die holder, and a pipe feeding pressing wheel correspondingly matched with the pipe feeding lower driving wheel is arranged at the upper end of the pipe feeding lower driving wheel. A pipe feeding guide frame is arranged at the rear end of the lower pipe feeding driving wheel, and a pipe guiding hole correspondingly matched with the pipe supporting hole is formed in the upper end of the pipe feeding guide frame. The automatic pipe penetrating device has the advantages that the structural design is novel, the structure is compact, automatic pipe penetrating is achieved, the production efficiency is greatly improved, and the production cost is reduced.

The invention discloses a cast-in-place pile pouring process quality detection method capable of sensing ERT on the inner side and the outer side. The cast-in-place pile pouring process quality detection method comprises the steps that conductivity information of the inner side and the outer side of a cast-in-place pile is collected through an electrical resistance tomography electrode array arranged at the bottom of a cast-in-place pile feeding guide pipe; the two-dimensional position information of the electrical resistance tomography electrode array in the pile hole in the horizontal direction is positioned through an ultrasonic transducer array arranged at the bottom of the feeding guide pipe; the depth information of the electrical resistance tomography electrode array is acquired through an incremental encoder and a roller which move along with the feeding guide pipe in the vertical direction; transmitting the obtained conductivity information, the two-dimensional position information and the depth information to a computer imaging system to obtain a three-dimensional conductivity distribution image of the cast-in-place pile, and analyzing the obtained image to realize quality detection of the cast-in-place pile. Total cross-section imaging of concrete and a reinforcement cage can be achieved, and the positions and sizes of karst caves and collapse possibly existing in the pile hole wall can be accurately measured.

The invention provides a deepwater drilling method for inhibiting bottom stratum erosion of a multi-wellhead suction pile and the suction pile. The drilling method comprises the steps that guide pipes and pre-inclined casing pipes are prefabricated and installed at a plurality of wellheads at the top of a pile cylinder to form the suction pile, the pre-inclined casing pipes and the guide pipes at the same wellhead are sequentially arranged in a sleeving mode from inside to outside, and the pre-inclined casing pipes and the guide pipes are arranged at the same wellhead in a sleeving mode from inside to outside; the shaft sleeve is coaxial with the wellhead; the suction pile is conveyed to a water entry position opposite to the drilling position; the suction pile is put down and penetrates into the set position of the stratum; a first well hole with the preset depth is drilled downwards in each pre-inclined casing pipe, and a first casing pipe is placed downwards in each first well hole; cement is injected into the first casing pipe for well cementation, so that the preset pressure intensity is achieved, and stratum erosion is restrained; and a second well hole with the preset depth is drilled downwards in the first casing pipe, a second casing pipe is placed downwards in the second well hole, well drilling is completed, erosion of the bottom stratum of the pile barrel can be restrained, and stage well drilling operation can be completed safely and efficiently.

The full-coverage and full-process automatic production line comprises a feeding mechanism, a feeding cutting mechanism, a butt welding mechanism, a cold bending mechanism, a hole cutting mechanism, a transferring mechanism and a connecting plate welding mechanism, and the feeding cutting mechanism is used for cutting and chamfering the two ends of steel; the butt-joint welding mechanism is arranged between the feeding cutting mechanism and the cold bending mechanism and is used for performing butt-joint welding on the current steel and the remaining raw materials of the previous section; the cold bending mechanism carries out cold bending treatment on the steel; the hole cutting mechanism is arranged on a discharging path of the cold bending mechanism, and a guide pipe hole for loading a small guide pipe is formed in the steel; the fixed-length cutting mechanism is arranged at the output end of the hole cutting mechanism and is used for carrying out fixed-length cutting treatment; the transferring mechanism is arranged on the downstream portion of the fixed-length cutting mechanism and transfers the steel to a welding preset station, and the connecting plate welding mechanism conducts end connecting plate welding on the steel transferred in place. The automatic production line can meet the requirements of tunnel construction for steel hole sites, structural strength and batch production.

The utility model discloses a safe operation platform for shaft excavation supporting construction, and belongs to the technical field of shaft expanding excavation. Comprising a protective top plate, an excavator platform and a plurality of I-shaped steel, the protective top plate is connected with a guide pipe in a penetrating mode, the lower end of the guide pipe is close to the excavator platform, a spiral conveyor is arranged in the guide pipe in a sleeved mode and fixed to the protective top plate, and a sliding channel is reserved between the spiral conveyor and the guide pipe. A plurality of supporting wheels capable of being adjusted in a telescopic mode are annularly distributed on the protection top plate and the excavator platform, a plurality of lifting lugs are annularly distributed on the protection top plate, and the technical effects that the excavation efficiency is improved, and muck falling from the protection top plate can be conveniently and intensively cleaned are achieved.

The utility model relates to a desilting device, in particular to a desilting device for hydraulic engineering. The utility model provides a desilting device for a water conservancy project, which can automatically smash silt. The desilting device for the water conservancy project comprises a mounting shell, a servo motor, a connecting frame, a spiral material conveying plate, a material collecting cavity, a guide pipe and a mud pump, the servo motor is mounted on the upper portion of the mounting shell, the spiral material conveying plate is fixedly connected to an output shaft of the servo motor and rotates in the mounting shell, and the guide pipe is fixedly connected to the output shaft of the servo motor. A connecting frame is fixedly connected to the bottom of the mounting shell, a guide pipe is connected to the right side of the upper portion of the mounting shell, a slurry pump is mounted in the middle of the guide pipe, and the stirring paddle is fixedly connected to an output shaft of the servo motor and located below the spiral conveying plate. And through the servo motor, the output shaft of the servo motor drives the stirring paddle to rotate, and then the stirring paddle can smash the sludge, so that the sludge is conveniently discharged, and the sludge is prevented from blocking the guide pipe.

The invention relates to the field of construction tools, in particular to light foam concrete pouring and conveying equipment which structurally comprises a base, a horizontally-arranged discharging device is arranged at the top of the base, an upper cover plate is installed on the upper surface of the discharging device, a feeding pipe is arranged on one side of the upper cover plate, and the discharging device comprises a guide pipe and a buffer. The buffer is connected with a feeding hopper, the feeding hopper and a bottom pipe at the bottom form a groove body, a rotary feeding rod is arranged in the buffer and the bottom pipe, the feeding rod is connected with a driving motor main shaft installed outside the feeding hopper, the synchronous motor drives the middle pipe to rotate, and the synchronous motor is electrically connected with a driving motor main board. The long-distance conveying capacity of foam concrete is achieved, defoaming in the start-stop process is greatly reduced, the effective pushing torque of the feeding rod is concentrated in the axial conveying direction by means of the segmented design of the pre-conveying section and the conveying section of the feeding rod and the radial limiting effect of the buffer, radial overflow of materials is restrained, and damage to foam caused by radial shearing is reduced.

The invention provides an offshore wind power jacket prefabricated joint structure and a construction method thereof. The offshore wind power jacket prefabricated joint structure comprises a main pipe, a branch pipe, a main pipe connecting part and a branch pipe connecting part. The main pipe comprises a main pipe outer steel pipe and a main pipe inner steel pipe which are coaxially sleeved; concrete is filled between the main pipe outer steel pipe and the main pipe inner steel pipe to form a main pipe concrete interlayer; the branch pipe comprises a branch pipe outer steel pipe and a branch pipe inner steel pipe which are coaxially sleeved, and concrete is filled between the branch pipe outer steel pipe and the branch pipe inner steel pipe to form a branch pipe concrete interlayer; one end of the branch pipe is connected to the side wall of the main pipe, and the other end of the branch pipe is connected with the jacket inclined strut through the branch pipe connecting part; a first grouting partition plate and a second grouting partition plate are connected between the main pipe outer steel pipe and the main pipe inner steel pipe. A third grouting partition plate is connected between the branch pipe outer steel pipe and the branch pipe inner steel pipe. The anti-fatigue performance of the joint is improved, the influence of stress concentration is weakened, and then the stability and durability of the jacket foundation are enhanced.

The invention belongs to the technical field of spiral pipe cleaning, and particularly relates to municipal drainage based spiral pipe inner wall cleaning equipment which comprises a fixing frame, a driving wheel and the like. The fixing frame is connected with at least two driving wheels used for driving the fixing frame to move. Fuel gas enters the gas conveying channel in the double-channel guide pipe, the fuel gas is conveyed to the flame spraying gun through the gas conveying holes, the flame spraying gun operates and ignites, fire is sprayed to the inner wall of the spiral pipe through the flame spraying gun, the inner wall of the spiral pipe is preheated through flames sprayed out of the flame spraying gun, and therefore the inner wall of the spiral pipe is preheated. Therefore, impurities such as rust layers and oil stains on the inner wall of the spiral pipe can fall off more easily, the cleaning difficulty of the spiral pipe is lowered, all the bristles rotate to clean the inner wall of the spiral pipe, all the bristles make contact with a welding seam from the side portion, all the bristles are directly inserted into the welding seam on the inner wall of the spiral pipe, and the welding seam is cleaned more conveniently. And therefore, the cleaning effect on the spiral pipe is improved.

The utility model provides a guide plate with a water cooling device, which is characterized in that the structure of the existing guide plate for hot rolling of seamless steel pipes is improved, that is, a water cooling guide groove arranged along the rolling center line of the guide plate is arranged in a guide plate body; a water outlet hole which is vertically communicated with the water-cooling guide groove is formed in a rolling center line of the working surface of the guide plate body, and water-cooling guide pipes with different structures are arranged in the water-cooling guide groove; during rolling, circulating water cooling and lubrication are carried out between the guide plate and a seamless steel pipe red hot steel billet, so that the failure probability of oxidative wear, abrasive wear, hot cracks and the like of the guide plate at high temperature is greatly reduced, and the service life of the guide plate is greatly prolonged. Through actual working condition tests, the improved guide plate for the hot-rolled seamless steel pipe is very remarkable in anti-abrasion effect, the effect of rolling more than 3000 steel pipes can be achieved, the service life is more than 1.5 times that of an existing guide plate, therefore, the replacement period of the guide plate is prolonged, and the production cost is reduced.

The invention belongs to the technical field of welding equipment, and particularly relates to an equipment machining welding platform which comprises a base plate, a support is arranged on the upper portion of the base plate, guide seats are symmetrically arranged on the lower side of the middle of the support, arc-shaped clamping sleeves are movably arranged on a mounting seat and the guide seats correspondingly, and each arc-shaped clamping sleeve is composed of a clamping part and a movable part; a clamping assembly used for driving the arc-shaped clamping sleeves to clamp the boiler barrel is arranged between the two arc-shaped clamping sleeves, a walking mechanism used for driving the arc-shaped clamping sleeves to rotate is arranged on the upper portion of the support, an electric welding gun is fixedly arranged on the support, and the gun head of the electric welding gun is sleeved with a fixed sleeve penetrating through the movable portions of the arc-shaped clamping sleeves. Sand blasting guide pipes are symmetrically arranged on the sides, close to the boiler barrel, of the fixing sleeves, and the sand blasting machines are connected through flexible pipes. Through cooperation of the structures, the welding face can be cleaned, meanwhile, heat preservation treatment can be conducted on a welded seam after welding, and the welding quality of the welded seam is improved.

The invention relates to the field of underground engineering construction, and discloses a hole wall cleaning device for rapid hole sealing after coal mining and a hole sealing method.The hole wall cleaning device comprises two guide pipes, each guide pipe is provided with a rear plug located at an opening of the hole wall for sealing, the two rear plugs are both arranged on the right side of the guide pipe, and a wooden plug head is detachably installed at one end of one guide pipe; one end of the other guide pipe is fixedly connected with a tamping head, the other end of the other guide pipe is slidably or fixedly connected with a pulling end, the water pumping pipe extends to the left end of the guide pipe and is communicated with an opening for draining water, and a water conveying pipe is slidably arranged in the guide pipe and extends into the cleaning assembly. After the straight sleeve and the rotating sleeve move in one direction through water supply of the water supply pipe, the other face is blocked by the adjusting sleeve through impact, the inner wall of the adjusting sleeve is hung through the scraping ring, and the effects of washing the inner wall and moving the cleaning sleeve are achieved through the inclined spray head and the rotating sleeve in use.

The invention relates to the technical field of cast-in-place piles, and discloses a coastal tidal liquefaction site large-diameter cast-in-place pile drilling pile-forming complete-set construction method which comprises the steps that (1) a construction site is leveled, a slurry circulating system is built, and the pile position is determined; (2) the pile casing is vibrated and sunk at the pile position; (3) rotary drilling is conducted in the pile casing, and a pile hole is formed; (4) primary hole cleaning is conducted on the pile hole; (5) a steel reinforcement cage is put into the pile hole, the steel reinforcement cage comprises a plurality of main reinforcements which surround at intervals, stirrups surround the peripheries of the main reinforcements, and the steel reinforcement cage defines a cage space; a reinforcing structure is arranged in the cage space and connected with the multiple main reinforcements to limit the main reinforcements from deviating from the cage space to deviate outwards. A pouring guide pipe is put into the pile hole; (6) reverse circulation secondary hole cleaning is conducted on the pile hole, and slurry is discharged into a slurry circulation system to be subjected to multi-layer sedimentation filtration; and (7) after corrosion-resistant concrete is poured into the pile hole through the pouring guide pipe to the set height, the pile casing is pulled out through vibration to be separated from the pile hole, and the concrete in the pile hole is solidified to form a cast-in-place pile.

Disclosed in the present invention are a steel mesh formwork cast-in-place pile structure suitable for a high-rise building in a karst area, and a construction method. A pile hole is drilled in a construction position; a cylindrical mesh formwork assembly is mounted in the pile hole and comprises a cylindrical reinforcement cage and a steel mesh formwork, and the steel mesh formwork surrounds the cylindrical reinforcement cage to form a vertically through-going cylindrical space which is adapted to the inner diameter of the pile hole; a grouting apparatus comprises a feeding guide pipe and a feeding device, the feeding guide pipe extends into the pile hole from the cylindrical space, the upper end of the feeding guide pipe extends out of a hole opening and is provided with a receiving hopper, and the feeding device is provided on the ground and feeds materials to the receiving hopper; and a hoisting apparatus is configured to: lower the cylindrical mesh formwork assembly into the pile hole before grouting, and dynamically adjust the vertical position of the feeding guide pipe during grouting, so as to maintain a constant embedment depth of the feeding guide pipe in the rising concrete.

A system includes a tubular disposed inside of the casing that includes an inner circumferential surface delineating a conduit, an external circumferential surface, a first end, and a second end located uphole from the first end in the well. The system also includes a slip disposed circumferentially around the external circumferential surface of the tubular configured to grip an inner surface of the casing. The system also includes an expansion subassembly configured to expand radially when activated and expand an area of the tubular around the expansion subassembly from the initial outer diameter to a final outer diameter. The system also includes a string that extends from a surface location through the conduit of the tubular to the expansion subassembly and configured to pull the expansion subassembly up-hole.

This utility model discloses a ball mill that allows material feeding and discharging without stopping the machine. It includes a drum driven by a motor and its reducer, with a main feed inlet on the side of the drum and a control valve thereon; at least one auxiliary feed inlet on the end face of the drum; a fixed outer tube; and an inner tube installed at the center of the drum's end face and rotating synchronously with the drum. The inner tube contains a centrally located main feed channel and peripheral auxiliary feed channels arranged side-by-side. The inner end of the main feed channel is connected to the drum's inner cavity via a main feed guide pipe and a main feed inlet, while the outer end of the main feed channel is connected to the outer tube along the inner tube's axial direction via a first rotary joint. The inner end of the auxiliary feed channels is connected to the drum's inner cavity via an auxiliary feed guide pipe and an auxiliary feed inlet, while the outer end of the auxiliary feed channels is connected to an auxiliary feed inlet / outlet pipe along the inner tube's radial direction via a second rotary joint. This design ensures smooth feeding and discharging of both main and auxiliary materials in the drum without stopping the machine; prevents material leakage during high-speed drum rotation; and improves the ball mill's applicability and production efficiency.

The invention provides a method, a system and equipment for evaluating fatigue performance of an inner ring rib steel pipe concrete joint. The method comprises the following steps: calculating structural geometric parameters of the jacket foundation according to an ultimate load condition; obtaining a fatigue load time history curve through load simulation based on the parameters; a node hot spot stress cycle amplitude is obtained through finite element analysis; and finally, calculating fatigue accumulated damage through an S-N curve specially fitted for the inner ring rib steel pipe concrete node, and performing evaluation. The method can solve the technical problems that an existing fatigue evaluation method does not consider the specific structure, material and process characteristics of the inner ring rib steel pipe concrete joint, so that the evaluation result discreteness is large, the accuracy is insufficient, and the requirement for accurate evaluation of the fatigue life of the complex space joint of the offshore wind turbine generator is difficult to meet.

The invention relates to a construction method for a cross intersection of an extra-large section tunnel and a contact channel, and belongs to the technical field of tunnel construction. Comprising the following steps: S1, erecting a steel frame at the arch part of the intersection of the tunnel and the contact aisle; s2, constructing a large pipe shed; s3, grouting feet-lock anchor pipes are arranged on the arch steel frame in a driving mode; s4, construction is conducted at the horsehead, and tunneling is conducted towards the connecting channel; s5, two simultaneous steel frames are installed at the top of the connecting channel at the intersection, advanced small guide pipes are arranged, and a horsehead is broken; and S6, tunneling is continued to the connection channel. According to the construction method, through collaborative innovation of all process links, the limitation of single reinforcement of a traditional method is broken through, and unification of construction safety and economical efficiency of the complex intersection is achieved; by reinforcing the connection at the horsehead, the entrance safety of the intersection is ensured, and the structural stability is high.

The utility model discloses an offshore piling platform capable of being freely assembled and adapting to multi-diameter pile types, which is characterized in that a perforated upright post for fixing a hoop is arranged in a platform bracket, the diameter of a steel guide pipe is matched with that of a concrete pipe pile, and the steel guide pipe is fixed with the platform bracket by using a bolt through the hoop. Perforated connecting plates are welded to the interiors of the four corners of the upper surface and the lower surface of the platform support correspondingly, and the upper platform support and the lower platform support are freely assembled and fixed through the connecting plates by means of bolts. According to the piling platform, the height of the platform can be flexibly adjusted according to on-site actual requirements, the piling platform effectively adapts to height difference caused by seawater fluctuation and ebb tide, and the platforms are fixed through the connecting plates by means of bolts. The size of the steel guide pipe and the size of the steel hoop in the platform are matched with the pile diameter of a sunk pile, the steel guide pipe is fixed into the platform support through bolts by means of the hoop, flexible replacement can be achieved, the platform is suitable for pile sinking work of pile foundations of various diameters on site, and frequent replacement of the piling platform is avoided.

The invention discloses a high-formwork frame column concrete pouring device which comprises a material guide barrel, a concrete pouring device body and a concrete pouring device body. A feeding port is formed in the top end of the material guide barrel, a feeding barrel is arranged at the feeding port, a material guide port is formed in the bottom end of the material guide barrel, and the material guide port communicates with a plurality of cylindrical steel guide pipes connected in sequence so that concrete can be conveyed into a formwork; the first buffering assembly comprises a rotating motor arranged at the top end of the material guiding barrel and a rotating shaft connected with an output shaft of the rotating motor, the rotating shaft is located in the material guiding barrel, three partition plates are arranged on the rotating shaft at intervals, the partition plates are vertically arranged, and the partition plates can rotate in the material guiding barrel; the top end of the partition plate is lower than the bottom end of the feeding cylinder so as to receive concrete conveyed by the feeding cylinder and convey the concrete into the steel guide pipe through the material guide opening. By arranging the first buffer assembly, the speed of concrete output by the mortar pump is reduced, so that the impact of the concrete on the formwork when the concrete falls down from the steel guide pipe is reduced.

The invention provides a large-diameter super-long pile foundation concrete pouring hopper and an operation method. The large-diameter super-long pile foundation concrete pouring hopper comprises a hopper body, a flow monitoring and adjusting device, a sinking support, a clamping and deviation rectifying integrated device and a guide pipe connector. High-precision operation of hoisting of the guide pipe and the hopper and uniform control of concrete flow are achieved through accurate positioning of the clamping and deviation rectifying integrated device and the flow monitoring and adjusting device. The novel guide pipe connector adopts the embedded design of a rotary convex part and a rotary concave part, and is matched with a rubber sealing material, so that concrete slurry leakage is prevented, and the sealing performance and reliability of construction are ensured. In addition, the invention further provides a construction method, the construction method comprises the steps of drilling, hole cleaning, steel reinforcement cage lowering, guide pipe assembling, hopper mounting, concrete pouring and the like, the quality and efficiency of pile foundation construction are remarkably improved through accurate calculation of the volume of the first sealing concrete and optimization of the continuous pouring process, the construction performance in the complex environment is remarkable, and the construction period is shortened. The method has remarkable economic benefits and wide application prospects.

The invention relates to the technical field of grouting, in particular to a multifunctional gradient grouting device and a grouting method. The multifunctional gradient grouting device comprises a grouting assembly and a mud jacking assembly, the grouting assembly comprises a grouting pipe, a grouting zoning mechanism, a plurality of annular mud blocking plugs and a plurality of grouting guide pipes, the grouting zoning mechanism is arranged in the grouting pipe, the interior of the grouting pipe is divided into a plurality of grouting channels extending in the length direction of the grouting pipe through the grouting zoning mechanism, and the annular mud blocking plugs are arranged in the grouting channels. And a plurality of grouting hole groups are formed in the peripheral surface of the grouting pipe. The multifunctional gradient grouting device integrates multiple functions, solves the problems that an existing grouting mode is single in grouting type and pressure, and can achieve simultaneous grouting, segmented grouting, layered grouting and gradient grouting of multiple types of grout under multiple pressures so as to repair cracks of an injected body in a targeted mode, reinforce and modify the injected body, improve the grouting efficiency and improve the grouting quality. And a'deep and shallow hole high-low pressure grouting 'process can be realized at the same time, procedures can be simplified, the construction cost is reduced, and the construction efficiency is improved.

The invention discloses an offshore wind turbine split type jacket foundation structure and an oblique insertion type grouting connection method. The offshore wind turbine split type jacket foundation structure comprises a lower jacket, and a suction pile is fixed to the bottom of the lower jacket; a tower drum is mounted at the top of the upper jacket, and the upper jacket and the lower jacket are connected through oblique insertion type grouting; the inserting tip comprises a connecting steel pipe, the top end of the connecting steel pipe extends into the upper jacket, the bottom end of the connecting steel pipe is inserted into the lower jacket, a sealer is arranged at the bottom of the connecting steel pipe, a first grouting cavity is formed between the top of the lower jacket and the sealer, and a second grouting cavity is formed between the bottom of the upper jacket and the top of the connecting steel pipe; the positioning assembly is arranged between the upper jacket and the lower jacket; a fixing assembly is installed on the connecting steel pipe. The jacket is designed into a split type, so that the performance requirements of manufacturing, transportation, hoisting and the like on ship machine equipment are greatly reduced, and the jacket foundation can be conveniently applied to deep and far sea areas.

The application provides a multi-wire feeding device and method for multi-layer multi-pass welding seam structure and element regulation, and relates to the field of welding.The device comprises a wire feeding front end shell, a secondary wire guide disc, a wire feeding guide pipe, a tertiary wire guide disc, a wire feeding middle section shell and a clamping shell; the wire feeding front end shell is composed of a wire guide front nozzle, a wire guide cone and a primary wire guide disc; the wire feeding guide pipe is connected with the secondary wire guide disc and passes through the tertiary wire guide disc, and the tail end port of the wire feeding guide pipe is connected with a wire guide wheel group circular middle joint; the wire guide wheel group is composed of two wire guide wheel groups and a motor, and the motor is controlled by a control device to realize wire feeding and wire withdrawal by controlling the forward and reverse rotation of the motor.The method uses different component welding wires in one welding process to realize the regulation of the structure and elements in the welding process.The application improves the problems of uneven welding seam structure, grain coarsening and element burning loss in multi-layer multi-pass welding, and improves the performance of the multi-layer multi-pass welding seam.

The invention discloses a shield tunnel double-area synchronous grouting control system and method. The system comprises a first main pipeline and a second main pipeline, the first main pipeline comprises a first grouting pipeline and a first grout supplementing pipeline; the second main pipeline comprises a second grouting pipeline and a second grout supplementing pipeline; the first grouting pipeline and the second grouting pipeline are connected with a shield tail grouting guide pipe of the shield tunneling machine, and single-slurry synchronous grouting is conducted when the shield tunneling machine conducts tunneling; and the first slurry supplementing pipeline and the second slurry supplementing pipeline are connected with grouting holes in a shield tail segment of the shield tunneling machine, and double-slurry synchronous secondary slurry supplementing is conducted during tunneling of the shield tunneling machine till the pressure of the slurry supplementing pipelines reaches a preset pressure threshold value. Through the design of double-area synchronous operation, the single-ring grouting time is effectively shortened, meanwhile, the grouting fullness is improved, double-liquid slurry is rapidly solidified, floating of the duct piece is effectively controlled, the problem of hysteresis of filling slurry behind the duct piece wall in a traditional grouting mode is solved, and the method is widely applied to the shield construction technology.