Patents
Literature
Patsnap Eureka AI that helps you search prior art, draft patents, and assess FTO risks, powered by patent and scientific literature data.

861 results about "Culvert" patented technology

A culvert is a structure that allows water to flow under a road, railroad, trail, or similar obstruction from one side to the other side. Typically embedded so as to be surrounded by soil, a culvert may be made from a pipe, reinforced concrete or other material. In the United Kingdom, the word can also be used for a longer artificially buried watercourse.

Intelligent box culvert jacking posture control method and system based on digital twinning

The invention provides a box culvert jacking attitude intelligent control method and system based on digital twinning, and relates to the technical field of attitude control. Structural parameters of a box culvert entity, parameters of a construction environment, and elevation change data and axis offset data in a jacking process are obtained, and the two kinds of data are integrated to obtain a box culvert jacking attitude intelligent control system; generating a box culvert jacking attitude data frame sequence; according to box culvert entity reference information in the model and the updated box culvert real-time state information, combining the box culvert jacking attitude data frame sequence to determine box culvert actual attitude parameters, comparing the box culvert actual attitude parameters with box culvert design attitude parameters, determining attitude deviation types and attitude deviation values corresponding to the box culvert axis direction and the box culvert height direction respectively, and calculating the box culvert jacking attitude data frame sequence according to the attitude deviation types and the attitude deviation values. According to the method, the attitude adjustment control instruction is generated according to the attitude of the box culvert, so that the equipment drives the jack to adjust the jacking attitude of the box culvert according to the instruction, dynamic synchronization and accurate mapping of the structural state in the jacking process of the box culvert are realized, and the real-time performance, the accuracy and the control robustness of attitude adjustment are improved.
Owner:SHIJIAZHUANG TIEDAO UNIV +1

Road culvert inner wall damage image detection and traffic capacity evaluation method and system

The invention discloses a road culvert inner wall damage image detection and traffic capacity evaluation method and system, and relates to the technical field of road engineering detection and computer vision, and the method comprises the steps: collecting multi-source data through an annular camera, a laser section scanner and a mileage encoder carried by a detection robot, and carrying out the panoramic expansion and time-space registration; using a multi-scale attention panoramic segmentation network to identify damages such as lining cracks, joint slab staggering, damage and chipping, steel bar exposure and water leakage; calculating the clearance size and the deposition thickness of the culvert by adopting an ellipse fitting method; according to the method, the culvert detection speed reaches 50 m / h, and the damage detection accuracy reaches 89% or above.
Owner:安康市道路运输服务中心

Airport area underground water and surface water system coupling seepage regulation and control method and system

The invention discloses an airport area underground water and surface water system coupling seepage regulation and control method and system, and the method comprises the steps: employing a multi-source data fusion investigation mode to find out regional stratum and structure characteristics, and determining an underground water occurrence migration rule and a surface water and underground water supplement and drainage relation; constructing a coupling seepage model of the underground water and the surface water system under the current condition by applying a numerical simulation method, and defining a dynamic association mechanism of the underground water and the surface water system in time and space; based on a simulation result, determining a transformation scheme that a main stream adopts a double-hole box culvert and a branch stream adopts a single-hole box culvert, and arranging an electric gate at the box culvert; arranging monitoring points of groundwater level, pore water pressure and surface water system flow in combination with field spring water and well distribution, and constructing a cooperative monitoring network; the coupling seepage law of underground water and surface water systems is analyzed based on monitoring data, and the opening degree of a box culvert electric gate is dynamically adjusted to control rising of the underground water level in the flood period. The stability of a water system in an airport area is ensured.
Owner:SHANGHAI CIVIL AVIATION NEW ERA AIRPORT DESIGN & RES INST CO LTD

Prefabricated drainage box culvert steel formwork construction technology

The invention discloses a construction technology for a prefabricated drainage box culvert steel formwork, and is suitable for the technical field of box culvert formwork construction. The drainage box culvert steel formwork system comprises the construction steps of construction preparation, installation of a pedestal and an inner formwork support, installation of a box culvert foundation, installation of an inner formwork assembly, installation of a formwork assembly, one-time pouring forming, formwork removal after pouring and transferring. The construction site regionalization layout is adopted, a box culvert steel bar binding area and a formwork installation transverse moving area with an adjustable inner formwork support are arranged, the circulating operation of formwork erecting, pouring, demolding and transferring is achieved through a main beam suspension type inner formwork assembly, and a hydraulic formwork collecting device is innovatively adopted for driving a symmetrical hinged type inner formwork system; and in combination with the symmetry and multi-point uniform stress characteristics of a plurality of auxiliary supporting devices, the bending deformation of the inner template is effectively controlled through sequential control of a layered equal-height high-speed pouring process with preferential base angles.
Owner:CCCC FOURTH HARBOR ENG CO LTD +1

Tunnel bridge culvert water level detection alarm system and method based on deep learning

The invention discloses a tunnel, bridge and culvert water level detection and alarm system and method based on deep learning, and the method comprises the following steps: S1, collecting an image and a capacitance water level signal at the lowest point of a tunnel or an easy water accumulation region, and generating standardized multi-source data; s2, inputting the image into a SegmentAnything model, extracting a water body mask, and calculating an image water level value in combination with scale mapping; s3, carrying out confidence weighted fusion on the image water level and the capacitance signal to obtain a fused water level value; s4, constructing a fused water level time sequence, constructing an SCI Net model, and outputting a predicted water level sequence; s5, generating an alarm label according to the fused water level and the prediction result; s6, LED display and acousto-optic response are controlled according to the alarm label, and an early warning prompt is started when a serious alarm is given; s7, capturing an image in an early warning or serious alarm state, and generating an alarm data packet; and S8, uploading to an urban water level monitoring platform through the Internet of Things module. According to the invention, intelligent identification and remote early warning of the ponding state of the tunnel bridge and culvert are realized.
Owner:TIANJIN HAORUI YUNXIANG INTELLIGENT TECHNOLOGY CO LTD

Construction method of drainage system for karst tunnel inverted arch upheaval disease treatment

PendingCN121111369ADrainageDiseaseKarst tunnel
The invention relates to the technical field of tunnel engineering disease treatment, in particular to a construction method of a drainage system for karst tunnel inverted arch upheaval disease treatment, which comprises the following construction steps: S1, arranging settlement monitoring points in a disease section tunnel, and arranging a reinforcing structure in a lining arch foot area; and S2, the existing disease inverted arch is broken and removed section by section according to the preset length, and temporary supporting is carried out in time. And S3, an overhaul window is dug in the lining through a water mill drill, and a supporting structure is synchronously installed. And S4, a foundation trench is excavated in the bottom of the inverted arch, a concrete strip-shaped foundation is poured to serve as a foundation of the steel corrugated pipe arch culvert, the steel corrugated pipe arch culvert is installed, the axis of the steel corrugated pipe arch culvert is consistent with the karst cave water flow direction, and the steel corrugated pipe arch culvert is in sealed butt joint with the confluence overhaul groove. And S5, a drainage pipe is pre-buried in the inverted arch reconstruction section, the confluence overhaul groove and the central drainage ditch are connected, and finally concrete is poured to seal the inverted arch structure. The method effectively solves the problem of upheaval of the inverted arch caused by water burst of the deeply-buried karst cave, reduces the damage of the lining structure, and improves the long-term stability of the tunnel.
Owner:GUANGXI ROAD CONSTR ENG GRP CO LTD +1

Detection robot for automatically identifying defects of drainage pipe culvert under water operation condition

The invention relates to the technical field of pipeline robots, and discloses a probing robot for automatically recognizing defects of a drainage pipe culvert under the water operation condition. The movement mechanisms cling to the inner wall of the pipeline and are used for detecting the movement of the robot; the rotating mechanism is rotationally mounted on the peripheral side of the robot body; the pressure mechanisms are fixedly mounted on the outer wall of the rotating mechanism, attached to the inner wall of the pipeline and used for collecting pressure value related electric signals; the detection system is mounted in the robot body; the detection system comprises a signal processor module, a wireless transmission equipment module and an infrared camera module; the pressure mechanism, the rotating mechanism and the detection system are matched to realize accurate positioning of defect points on the inner wall of the pipeline. Through combination of mechanical contact type detection and kinematic model positioning, high-precision spatial positioning and identification of the inner wall of the pipeline are realized in a high-turbidity and full-pipe water-carrying environment, and data support is provided for subsequent pipeline maintenance and repair.
Owner:SHANGHAI MUNICIPAL ENG DESIGN INST (GRP) CO LTD

Culvert-Clearing System

A culvert-clearing system is provided. The system includes a base plate with alignment features, a pivotable winch assembly, and a scraper mechanism designed for bidirectional movement through a culvert. The winch assembly may be hydraulically powered and optionally retrofitted to existing winches using a conversion kit that integrates a hydraulic motor with a drive shaft via an adapter plate and coupler. The hydraulic motor is operated via a control unit and pump system to ensure proper torque delivery. A scraper assembly with angled arms and teeth is connected to a winch cable routed through a pulley assembly anchored at the far end of the culvert, enabling effective debris dislodgment and transport toward an accessible opening.
Owner:LESKOSEK RUDOLPH

Box culvert construction process

The invention relates to a box culvert construction process, which relates to the field of expressway box culvert construction, and comprises the following steps: after construction of a bottom plate and part of side walls of a box culvert is completed, dividing the whole box culvert into four construction sections by adopting a skip pouring mode, namely a pouring completion maintenance area, a slip form construction area, a steel bar pre-binding area and a construction preparation area; a formwork supporting frame device is assembled; the formwork device is moved to a slip form construction area and positioned; pouring construction is conducted on the slip form construction area; after pouring of one box culvert bin section is completed and the formwork removing condition is met, the side formworks are removed, then the top formwork is removed, and a pouring completed curing area is formed; the formwork device is moved to a constructed reinforcing steel bar pre-binding area, and repeated pouring construction is carried out; and box culvert construction operation is completed. The device has the effects that the template is automatically adjusted, the frame body is convenient to move, and positioning is simple.
Owner:JIANGSU RUNYANG TRAFFIC ENG GRP CO LTD

Down-hole type fish passing device

The utility model discloses a down-the-hole type fish passing device which mainly comprises a fish passing channel and a water passing flow channel. Wherein the fish passing channel is a passing channel for fishes to pass through a dam and is provided with two working gates; flow control assemblies for controlling the flow rate and the flow speed of water flow in the fish passing channel are arranged in the water passing channel and are divided into two groups; and each group of flow control components are arranged at a working gate of the fish passing channel and are symmetrically arranged along the two sides of the fish passing channel. The fish passing channel is of a culvert type structure and is provided with an upstream inlet and outlet and a downstream inlet and outlet. The flow control assembly comprises an inlet flow channel, a flow valve and an outlet flow channel; a water inlet of the inlet flow channel is in butt joint with an upstream water passing hole of the service gate. A water outlet of the outlet flow channel is in butt joint with a downstream water passing hole of the service gate, and the inlet flow channel and the outlet flow channel are connected through a flow valve. The down-the-hole type fish passing device has the advantages that the down-the-hole type fish passing device has excellent hydraulic characteristics, and a good passing environment is uniformly provided for fishes; the method is suitable for buildings with high, medium and low water heads.
Owner:JIANGXI WATER RESOURCES INST

A silt-proof and anti-scour water-dividing structure for the intersection of a karst tunnel and an underground river

The present invention discloses an anti-siltation and anti-impact water-dividing structure for the intersection of a karst tunnel and an underground river. The structure utilizes an upstream water-dividing weir, a downstream force-dissipating weir, a porous box culvert-type V-shaped inverted siphon water pipe and an open overflow channel, so that the karst tunnel structure divides the underground river intersecting therewith into upper and lower water-passing sections; the lower water-passing section is a porous box culvert-type V-shaped inverted siphon water pipe, and the upper water-passing section is an open overflow channel. The water-dividing structure of the present invention diverts the underground river through the karst tunnel according to the dry season and the flood season. The buried depth of the V-shaped inverted siphon hole water pipe is shallow, and there is no need to adjust the water flow gradient of the underground river. In addition, the V-shaped inverted siphon hole water pipe solves the problem of siltation on the upstream side of the lining structure of the upstream karst tunnel. At the same time, the water-dividing weir reduces the impact load of the water flow on the lining structure during the flood season, so that the upper and lower diverted water loads achieve a certain degree of balance.
Owner:CCCC FIRST HIGHWAY XIAMEN ENGINEERING CO LTD +2

Intelligent design method and device for highway channel culvert model, electronic equipment and storage medium

The invention provides an intelligent design method and device for a highway channel culvert model, electronic equipment and a storage medium, and relates to the technical field of road-related computer-aided architectural design, and the method comprises the steps: recognizing an intersection point of a highway route model and a surface water system, and calculating a direction vector of a center line of a culvert according to a preset culvert intersection angle; the culvert center line information is fused to the terrain surface to generate a three-dimensional culvert center line, and a highway channel culvert model is generated; whether the distance between the center line of the three-dimensional culvert and the existing structure model is smaller than a preset threshold value or not is judged; if yes, the three-dimensional space position of the highway channel culvert model or the highway route model is adjusted, and the distance between the three-dimensional culvert center line and the existing structure model is recalculated in real time till the distance is not smaller than a preset threshold value. By the adoption of the method and device, the electronic equipment and the storage medium, the technical problems that in the prior art, culvert design layout conflicts are difficult to accurately detect, and modeling efficiency is low can be solved.
Owner:CHINA HIGHWAY ENG CONSULTING GRP CO LTD +1

Prefabricated drainage box culvert steel formwork system

The invention discloses a prefabricated drainage box culvert steel formwork system which is suitable for the technical field of box culvert formworks. The prefabricated drainage box culvert steel formwork system comprises a pedestal, an outer formwork assembly and an inner formwork assembly. The inner formwork assembly comprises an inner formwork supporting system, a walking system and a hydraulic system. The walking system comprises a main beam and inner mold supports, the two sides of the pedestal are each provided with one inner mold support, the main beam is located over the pedestal, the bottoms of the two ends of the main beam are erected on the inner mold supports, supporting frames are arranged at the two ends, within the range between the two inner mold supports, of the main beam, and supporting legs are arranged at the two ends of the transverse bottom of each supporting frame. Each supporting leg is provided with a walking wheel. The inner mold supporting system comprises a plurality of supporting units and a mold retracting device, each supporting unit comprises an inner top mold, an inner side mold, an angle mold and the mold retracting device, and the mold retracting device is controlled by a hydraulic system to stretch out and draw back to adjust the inner side mold and the angle mold to be in place. Hydraulic linkage is combined with the walking system to achieve automatic contraction and transfer, and the internal mold turnover rate is high.
Owner:CCCC FOURTH HARBOR ENG CO LTD +1

Open cut culvert foundation pit supporting structure

The invention relates to the technical field of pit foundation supporting, in particular to an open cut culvert foundation pit supporting structure. Comprising two columns of fences which are horizontally and oppositely arranged; the two columns of hanging plates are correspondingly matched with the two columns of fences, and the multiple hanging plates in each column are sequentially distributed and connected to the top ends of the single columns of fences in a lap joint mode; a plurality of groups of inner support assemblies are arranged, and one group of inner support assembly is connected between every two scraper blades, which are horizontally opposite to each other, in the two rows of hanging plates; two groups of enclosing purlin assemblies; the enclosing purlin assembly comprises a plurality of enclosing purlin plates which are horizontally inserted into the end pieces in a one-to-one correspondence and sliding mode, the adjacent enclosing purlin plates are matched in an inserted mode, and locking and clamping pieces used for connecting the adjacent enclosing purlin plates in series and locking the adjacent enclosing purlin plates are inserted between the adjacent enclosing purlin plates; according to the foundation pit supporting structure provided by the invention, the convenience and rapidness of supporting assembly lap joint and disassembly are improved, the difficulty of assembly and disassembly is reduced, meanwhile, the integrity and flexibility of the supporting structure are improved, damage and deformation of the supporting structure are avoided or reduced, and the reusable rate of the supporting structure is ensured.
Owner:SHANXI CONSTR ENG CO LTD

Intelligent deviation correction control method and system for box culvert pushing

The invention provides an intelligent deviation correction control method and system for box culvert pushing, and relates to the technical field of underground engineering construction.The method comprises the steps that a box culvert three-dimensional model is constructed by collecting construction related data; simulating the space change trend of the attitude structure of the box culvert under different working condition parameters by utilizing a virtual construction technology, generating a correction control instruction by combining with the box culvert three-dimensional model, and collecting attitude data of the box culvert after executing the instruction so as to adjust the attitude structure of the box culvert in the box culvert three-dimensional model to obtain a corrected box culvert three-dimensional model; and performing correlation analysis on the corrected box culvert three-dimensional model, the position data of the existing line, the trend data of the underground pipeline and the burial depth data to adjust the correction control instruction until the actual attitude deviation of the corrected box culvert three-dimensional model meets a preset box culvert construction condition. Intelligent deviation correction control over the box culvert in the incremental launching construction process is achieved, and the real-time sensing capacity and structural safety of box culvert incremental launching construction in complex underground engineering are improved.
Owner:SHIJIAZHUANG TIEDAO UNIV +1

Electric power square culvert operation safety monitoring method and system

The invention is suitable for the technical field of safety monitoring, and particularly relates to an electric power square culvert operation safety monitoring method and system.The method comprises the steps that an electric power square culvert needing safety monitoring is determined, a structure distribution diagram of the electric power square culvert is drawn, and a risk area is marked; wherein the risk area at least comprises a stress concentration area and a potential hidden danger area, a connecting area of the electric square culvert is found out, and the connecting area at least comprises precast block joints and through holes; and selecting a plurality of monitoring point positions from the connection area and the risk area, deploying sensitive elements in the stressometer into the monitoring point positions, determining a deployment mode of the stressometer, and collecting stress data of the monitoring point positions. By constructing the monitoring tree, the risk value of each monitoring point position can be calculated and displayed, and real-time risk monitoring and early warning of the electric power square culvert are realized, so that the operation safety and the fault response speed are greatly improved.
Owner:STATE GRID SHANDONG ELECTRIC POWER CO LINSHU COUNTY POWER SUPPLY CO +1

Urban road prefabricated box culvert and jacking construction method thereof

This invention provides a precast box culvert for urban roads and its jacking construction method. The precast box culvert includes a precast box culvert body, with interfaces suitable for sealing and insertion at both ends. Multiple insertion holes are arrayed at the first end of the box culvert body, and multiple pins are arrayed at the second end of the box culvert body opposite to its first end. Each pin is adapted to be inserted into a corresponding insertion hole. A locking structure is provided between the pin and the insertion hole. When the first end interface of one box culvert body is inserted into the second end interface of another box culvert body, the locking structure locks the pin in the corresponding insertion hole. The precast box culvert and its jacking construction method provided by this invention not only ensure stable and reliable connection between adjacent box culvert bodies, but also eliminate the need for on-site secondary pouring during the jacking construction process, greatly improving the efficiency of jacking construction and shortening the construction cycle.
Owner:POWERCHINA WATER ENVIRONMENT GOVERANCE

Movable assembly type formwork for box culvert construction

The utility model discloses a movable assembly type formwork for box culvert construction, which belongs to the technical field of box culvert formworks, and comprises an inner formwork and an outer formwork, the inner formwork comprises a bottom longitudinal beam, the bottom longitudinal beam is fixedly connected with a plurality of first support rods respectively, the first support rods are sleeved with first connecting pipes in a sliding manner, and the first connecting pipes are sleeved with second connecting pipes respectively; the end, away from the first supporting rod, of the first connecting pipe is slidably sleeved with a second supporting rod, transverse rods are fixedly connected to the second supporting rod, a second connecting pipe is arranged between the two transverse rods, hydraulic oil cylinders are fixedly installed on the first supporting rod, the second supporting rod and the transverse rods respectively, and inner formworks are detachably installed on piston rods of the hydraulic oil cylinders. The outer formwork comprises a support, an outer formwork is installed on the support, and idler wheels are installed at the bottom of the bottom longitudinal beam and the bottom of the support respectively. The utility model solves the problems that in the manufacturing process of the box culvert in the prior art, due to different sizes of the box culvert, the construction of a formwork is easily limited, the formwork is difficult to mount, dismount and circulate, the construction period is seriously restricted, and the construction cost is increased.
Owner:WANGJIANG COUNTY HYDROPOWER CONSTR & INSTALLATION CO LTD

Batch box culvert pouring mold

The batch box culvert pouring mold comprises an outer mold unit and an inner mold unit, the outer mold unit comprises a base, a bottom plate, two sets of side plates, a top plate and a rear plate, the rear plate and the bottom plate are integrally formed, the side plates are connected with the top plate and the bottom plate through telescopic rods, and the surfaces of the side plates are provided with third protrusions and U-shaped plates with fourth protrusions; the inner mold unit comprises an inner forming mold, a moving rod and a linkage plate, the linkage plate is provided with a first protrusion and a second protrusion, and a sleeving frame with a convex attaching strip is detachably fixed in an annular groove of the inner forming mold through a screw. After concrete is poured and solidified through the top plate injection groove, the moving rod drives the internal forming mold to drive the linkage plate to act, approaching positioning and separation of the side plates are achieved through linkage of the protrusions, the box culvert is moved out along with the inner mold by means of friction force of the attaching strips, and the box culvert and the inner mold can be separated by disassembling the screw. The demolding process is simplified, automatic operation is achieved, the labor intensity is reduced, the continuity, stability and forming quality of batch production are guaranteed, and the mold is suitable for a box culvert batch production scene.
Owner:POLY CHANGDA ENGINEERING CO LTD

A towing device for a submersible to enter a maintenance culvert and a maintenance culvert

This invention discloses a traction device and a maintenance culvert for a deep-sea submersible undergoing maintenance. The traction device includes: a first traction assembly disposed on both sides of the axis of the maintenance culvert and movable along the axis of the maintenance culvert; a traction rope for connecting the first traction assembly to both ends of the deep-sea submersible and driving the deep-sea submersible to move within the maintenance culvert via the first traction assembly; and a second traction assembly for providing traction force to both sides of the deep-sea submersible after it has been pulled into position by the first traction assembly, to prevent the deep-sea submersible from swaying. By applying force to both ends of the deep-sea submersible using the traction rope via the first traction assembly, the deep-sea submersible can be dragged within the maintenance culvert, thereby reaching a designated position within the maintenance culvert. Simultaneously, the second traction assembly provides traction force to both sides of the deep-sea submersible to prevent swaying and ensure stable positioning of the deep-sea submersible.
Owner:NUCLEAR POWER INSTITUTE OF CHINA

Road structure suitable for valley terrain

The utility model discloses a road structure suitable for a valley terrain. The road structure comprises an original foundation excavation step, a cement concrete pile, a sand cushion layer, a cement concrete plate, a pipe culvert, waterproof geotechnical cloth, a cement concrete wall, a hard geocell, a pavement structure and an EPS (Expandable Polystyrene) filling block. The pile foundation structure and the cement concrete plate are arranged at the bottom of the road structure, the cement concrete wall pairs divide the EPS filling area into a plurality of units and make direct contact with the exposed part of the pipe culvert to fix the pipe culvert, the hard geocell is laid on the cement concrete-EPS composite roadbed, and the pavement structure is laid on the geocell which is backfilled with plain soil. Through the combined arrangement of the pipe culvert and the sand cushion layer, smooth drainage of the valley terrain is guaranteed, the waterproof effect of the EPS roadbed is guaranteed through the arrangement of the reinforced concrete pouring structure and the waterproof structure layer, the pile foundation can transmit loads to a deeper soil layer with higher bearing capacity, construction is convenient, noise is avoided, and differential settlement of the roadbed is effectively reduced.
Owner:HEBEI UNIV OF TECH

Square rain and sewage culvert tail end blocking stop block and construction method

PendingCN121976599AAvoid the risks of working underwaterShorten sealing construction timeArtificial islandsGround-workStream flowWater flow
The invention relates to the technical field of rainwater and sewage pipe culvert construction, in particular to a rainwater and sewage square culvert tail end plugging stop block and a construction method.The rainwater and sewage square culvert tail end plugging stop block comprises a plugging block, the side end face of the plugging block is of a right trapezoid structure with the narrow upper portion and the wide lower portion, the upstream face of the plugging block is a vertical face, and the downstream face of the plugging block is an inclined face; second haunch angles matched with the first haunch angles at the bottom of the square culvert are arranged on the two sides of the bottom of the plugging block respectively, and a hanging ring is arranged at the top of the plugging block. The gravity type trapezoidal structure with the narrow upper portion and the wide lower portion is adopted, the anti-floating capacity and the anti-overturning capacity are high, large-flow and high-flow-speed water flow impact can be resisted, the check blocks are prefabricated parts and only need to be hoisted in place on site, the underwater operation risk is avoided, the plugging construction time is greatly shortened, and a follow-up construction working face can be rapidly provided.
Owner:CHINA MCC22 GROUP CORP LTD

Box culvert structure for landscape lake

The box culvert structure comprises a culvert and a flood discharge gate which is arranged at the outlet end of the culvert and can be opened, an overflow weir is arranged in the middle of the inlet end of the culvert, symmetrical concave plates are arranged on the side wall of the overflow weir and the inner wall of the culvert, pluggable water blocking plates are arranged in the concave plates, and the upper ends of the water blocking plates are higher than the upper end of the overflow weir. The overflow weir and the water blocking plate are matched to shield lake water outside the water facing opening of the culvert, so that when the lake water outside the water facing opening of the culvert is higher than the bottom end of the culvert, maintenance personnel can also enter the culvert to maintain a flood discharge gate in the culvert, and the maintenance does not affect the water level of the lake.
Owner:何忠艳

A construction method for modular jacking of double-hole rectangular frame box culverts

The present invention relates to a modular jacking construction method for a double-hole rectangular frame box culvert, comprising the following steps: S10. Force analysis of the double-hole frame box culvert to obtain bending moment and shear force information; S20. Determination of the distance between the bending moment zero point and the side walls and middle wall; S30. Determination of the distance between the shear force zero point and the side walls and middle wall; S40. Splitting the double-hole frame box culvert longitudinally based on the bending moment zero point and the shear force zero point; S50. Installation of post-cast strips on the double-hole frame box culvert; S60. Installation of steel bar connectors and steel edge rubber waterstops on the double-hole frame box culvert; S70. Arrangement of temporary beam foundations and piers, and erection of temporary beams; S80. Installation of a half-hole box culvert and provision of temporary rigid supports; S90. Installation of the remaining box culverts; S100. Finalization of the double-hole frame box culvert construction; and S110. Completion of construction. The present invention has the beneficial effect of rationally splitting the double-hole frame box culvert.
Owner:CHINA RAILWAY MAJOR BRIDGE RECONNAISSANCE & DESIGN INSTITUTE CO LTD

Arc-shaped piece box culvert assembling method based on UWB positioning system

The invention discloses an arc-shaped piece box culvert assembling method based on a UWB positioning system, and belongs to the technical field of tunnel construction. The UWB positioning system comprises a reference prism group; installing a prism group; a rearview prism group; a total station; a UWB positioning assembly; the assembling method of the arc-shaped piece box culvert comprises the following steps that initial position coordinate information of all prisms is obtained; enabling the total station to accurately aim at each prism; converting the world position coordinate information of each prism into box culvert coordinates; generating first box culvert assembly correction information; generating second box culvert assembly correction information; and repeatedly calculating the mounting block attitude. The box culvert attitude is automatically measured through the UWB positioning system, and the assembly of the box culvert is accurately adjusted according to the measured box culvert attitude, so that the technical problem of low box culvert assembly precision is solved, and the technical effects of accurate measurement and assembly of the box culvert attitude are achieved.
Owner:SICHUAN KUN CHENG RUN TECH CO LTD

Box culvert structure for sluice pump station

The box culvert structure for the water gate pump station comprises a box culvert body, the top end of the box culvert body is connected with a top block, the side walls of the two sides of the box culvert body are each connected with a plurality of sets of bottom blocks, the side walls of the box culvert body are provided with a ladder stand mechanism, a protection mechanism is installed on the ladder stand mechanism, and the top block and the bottom blocks are perpendicularly distributed. The pedal is square, a person can conveniently step on the pedal and is not prone to slipping, then the hand can grasp the round rods located on the two sides, the hand can conveniently grab the round rods without hurting the palm, and therefore the effect of climbing use is achieved, dust and sundries are conveniently pushed out from the side hole by means of the side hole flush with the top end of the pedal, and the safety of climbing is improved. Therefore, dust and sundries are prevented from being directly pushed out from the front, and the dust and the sundries are pushed to the body of a climber.
Owner:CCCC SHANGHAI DREDGING CO LTD

Soft soil area newly-built box culvert short-distance crossing operation subway line construction method

The invention discloses a soft soil area newly-built box culvert short-distance crossing operation subway line construction method which comprises the steps that positioning paying-off and blocking are conducted in a construction area, and before a foundation pit is excavated, ballasting bags with the specific stacking weight and height are arranged in the center of a corresponding subway tunnel rail according to the linear meter; holes are formed in the uplift pile positioning positions on the two sides of the subway tunnel, a first section of pile casing is hoisted and pressed downwards till the first section of pile casing sinks, the perpendicularity is adjusted, a rotary drilling machine takes soil to enable the pile casing to sink, all sections of pile casings are sequentially inserted into the designated burial depth, a reinforcement cage is put down to pour concrete, the pile casings are pulled out after the strength reaches the standard, and a cushion layer is made; the uplift pile end reinforcing steel bars on the same side are connected through reinforcing steel bar nets to form an uplift beam net, box culvert bottom plate reinforcing steel bars are bound, and an uplift pile, uplift beam and box culvert bottom plate integrated structure is formed through formwork erecting and pouring. According to the technical scheme, disturbance of construction to the subway tunnel can be reduced, and operation safety is guaranteed.
Owner:JINAN YELLOW RIVER CONSTRUCTION GROUP CO LTD

Assembling machine assembly disassembling and transferring method

The invention provides an assembly machine assembly disassembling and transferring method which comprises the following steps: taking a front side wheel of an assembly machine moving frame as an overturning fulcrum, and overturning the whole assembly machine moving frame backwards to a horizontal state by utilizing hoisting equipment; an extension rail is installed on the rear side of the joist rail, and the whole assembly machine assembly is moved backwards to the position above the box culvert; integrally translating to a box culvert in place by combining the traction of hoisting equipment; hoisting equipment is used for hoisting the assembling machine assembly to a preset loading position on the box culvert, load-bearing equipment is placed downwards, and the assembling machine assembly is transported out of the tunnel after being borne. According to the method, through the overall transfer technology, the assembly machine components are completely transferred to the box culvert from the joist and loaded, protective disassembly of the assembly machine components is achieved, it is guaranteed that core components are not damaged in the secondary process, and secondary utilization is supported; secondly, the construction safety is effectively guaranteed, the fire operation frequency is obviously reduced, and the fire risk and the generation of harmful gas are reduced; the in-hole dismantling efficiency is effectively improved, the construction period is shortened, and the labor cost is reduced.
Owner:TIANHE MECHANICAL EQUIP MFG

A cement pipe cement pouring post-vibration equipment

This utility model relates to the field of cement culvert production technology, specifically a vibration compaction device for cement culverts after cement pouring. It includes a frame, with a control shell fixedly connected to the top of the frame. A motor is fixedly connected to the rear side of the control shell, and a screw is fixedly connected to the front side of the motor's output end through the control shell. This utility model uses a cylinder to control the height of the adjustment box and clamping plates, positioning the cement culvert mold on the ground between two clamping plates. A hydraulic cylinder controls the movement of the sliding sleeve and clamping plates, clamping and fixing the mold. The cylinder then resets the mold, and the motor and screw control the movement of the threaded sleeve and adjustment box, transferring the mold to the top of the vibration table. The vibration table vibrates to defoam the concrete poured in the mold. After defoaming, the mold is transferred back to the ground, and the above steps are repeated for other molds.
Owner:GANZHOU HANGFA NEW BUILDING MATERIALS CO LTD

A method, system, equipment, and storage medium for calculating the deformation of a pipe-culvert structure considering the soil resistance between the pipe and culvert.

This invention discloses a method, system, equipment, and storage medium for calculating the deformation of a pipe-jacking structure considering the soil resistance between the pipe and culvert. The method includes the following steps: S1. Simplifying the pipe-jacking structure as an elastic thin plate, and further simplifying the problem to the deformation of an elastic thin plate with fixed opposite sides and simply supported opposite sides under a uniformly distributed load on a Winkler elastic foundation, obtaining the differential equation of the bending surface of the thin plate on the Winkler elastic foundation and the expression for the boundary conditions of the thin plate; S2. Determining the elastic modulus when the pipe-jacking structure is simplified to an elastic thin plate, and calculating the bending stiffness D of the pipe-jacking structure; S3. Solving the differential equation of the bending surface of the thin plate on the Winkler elastic foundation using a hybrid solution method combining trigonometric series and the force method, obtaining the deflection formula of the elastic thin plate placed on the elastic foundation under a uniformly distributed load. This invention can accurately predict the deformation of pipe-jacking structures.
Owner:SUZHOU UNIV +2