75 results about "Highway drainage" patented technology

The invention relates to the field of highway infrastructure management, in particular to an intelligent data analysis system and method applied to stable drainage of a highway. The method comprises the steps that soil humidity, rainfall and underground water level data of an environment sensor are acquired, data cleaning, format standardization and preliminary fusion are carried out on edge nodes, and an environment preprocessing data sequence is generated; the data sequence is transmitted to a center node, deep fusion is carried out through a multi-source data fusion algorithm, and environment state parameters are generated; based on the parameters and historical data, constructing a dynamic drainage model by using an adaptive algorithm, and adjusting model parameters in real time to generate an optimal drainage strategy; and inputting the optimal strategy into an execution control module, generating a drainage control instruction, and performing closed-loop optimization on the model according to feedback data. Through multi-source data fusion and self-adaptive model dynamic adjustment, the stability and adaptability of the highway drainage system are improved, different environment and climate conditions are effectively coped with, and the maintenance cost is reduced.

The utility model provides a high-efficiency highway drainage device which comprises a well lid seat and a well lid plate, the well lid plate is rotationally installed on the well lid seat through a pin shaft, the well lid seat is provided with an installation hole and symmetrical movable grooves, a telescopic clamping part is arranged in the installation hole, the well lid plate is provided with a clamping groove corresponding to the clamping part, and the movable grooves are matched with the clamping part. The well cover plate is provided with symmetrical movable grooves, movable fixing portions are arranged in the symmetrical movable grooves, the well cover plate is provided with symmetrical fixing grooves, and the fixing grooves are matched with the fixing portions. According to the well cover plate, the built-in telescopic clamping portions are matched with the clamping grooves, meanwhile, the built-in fixing portions are connected with the fixing grooves in a sliding mode, and therefore the well cover plate is rapidly clamped and fixed; abrasion is reduced, the fixing effect is further improved, the locking effect is achieved, and random opening is prevented.

The utility model provides a positioning device, belongs to the technical field of highway drainage construction equipment, and particularly relates to a template positioning device which comprises a drainage ditch template, a plurality of uniformly distributed fixing structures are sleeved outside the drainage ditch template, and each fixing structure comprises an adjusting rod arranged above the drainage ditch template. Adjusting sleeves arranged on the two sides of the drainage ditch formwork are arranged outside the two ends of the adjusting rod in a sleeving mode, trapezoidal limiting pieces penetrating through the adjusting rod are arranged on the sides, away from the drainage ditch formwork, of the adjusting sleeves, and stabilizing rods corresponding to connecting rods and arranged on the two sides of the bottom end of the drainage ditch formwork are connected to the lower portions of the adjusting sleeves through the fixedly-connected connecting rods; the problems that an existing drainage ditch in highway construction is inconvenient to install and not stable enough are solved.

The utility model provides an assembly type sponge city road drainage structure, which relates to the technical field of drainage structures and comprises a plastic bottom plate, a plurality of floor drains are arranged at the top of the plastic bottom plate, a plurality of connecting columns are fixedly mounted at the top of the plastic bottom plate, and a plastic top plate is fixedly mounted among the tops of the connecting columns. According to the floor drain, when rainwater flows into the space between the plastic bottom plate and the plastic top plate along the multiple floor drains, the rainwater enters the drainage columns along the two drainage grooves and then is drained along the multiple drainage holes, and at the moment, impurities in the rainwater can be filtered out through the action of the two filter plates; according to the device, the two drainage columns and the multiple drainage holes are prevented from being blocked, and the two filter plates are convenient to disassemble, assemble, clean or replace under the action of four fixing blocks, four fixing shafts, four locking blocks and four fixing rings, so that the subsequent filtering effect is improved; and the drainage effect of the fabricated sponge city road is further improved.

The application relates to the technical field of highway maintenance, in particular to a highway drainage ditch self-leveling mortar and a preparation method thereof. The highway drainage ditch self-leveling mortar is prepared from at least gelatinous material and 20-200 mesh graded aggregate, the mass ratio of the gelatinous material and the graded aggregate is (14-17):(9-12), and a composite reinforcing agent and a functional additive are further added. The application greatly improves the core contradiction that the self-leveling performance and the structural durability cannot be simultaneously considered in the construction of the highway drainage ditch, the prepared mortar has excellent fluidity and thixotropy in the construction, can automatically flow and evenly cover on the inclined ditch wall, effectively avoids defects caused by manual troweling, greatly improves the construction efficiency and the forming quality, and the structure formed after hardening is compact and has a self-reinforcing characteristic.

The invention relates to a prefabricated part forming mold, in particular to an energy-saving highway drainage ditch concrete prefabricated part forming mold assisting in labor-saving demolding, which comprises a bottom mold and a side mold, the mold further comprises a cover mold. A positioning sleeve is mounted on the bottom die; a matching sleeve is mounted on the cover mold; the mold closing part is used for limiting the matching sleeve after the matching sleeve is in sliding connection with the positioning sleeve, the demolding part comprises a partition plate and a telescopic column, and after the limiting state of the mold closing part on the matching sleeve is relieved, the partition plate and the telescopic column can alternately drive the matching sleeve to move, and the first spring releases elastic force; therefore, the cover mold is driven to be separated from the bottom mold through the partition plate, then the elastic force of the second spring drives the cover mold to be continuously away from the bottom mold through the telescopic column, the demolding difficulty can be effectively reduced, and at the moment that the first spring releases the elastic force, the instantaneous kinetic energy of the first spring releasing the elastic force is reduced through the elastic force of the second spring; therefore, the instant stripping force between the concrete and the inner wall of the mold is reduced.

The utility model discloses a central median strip pavement drainage structure for superhigh excavation curved section, including outer, inner lane, central median strip and inner, outer drainage side ditch, the road height of outer lane to inner lane is gently reduced, be provided with two rows of anti -collision retaining wall by the crash barrier of anti -collision of central median strip, characterized in that: the lower part of crash barrier is provided with the flow guide gap, and the flow guide gap on the crash barrier in two rows of anti -collision retaining wall is aligned, and the flow guide gap of crash barrier is fixed with the groove type buckle, and the lower portion of groove type buckle forms the drainage channel, and the surface water on outer lane flows to inner lane through the drainage channel and flows into the inner drainage side ditch. The utility model discloses a central median strip pavement drainage structure, solved the existing superhigh excavation curved section and set up the problem of central median strip concrete pavement drainage, and this pavement drainage structure drainage mode is simple, direct, convenient construction, and the problem of highway drainage design has been solved.

The utility model provides a road drainage ditch structure which comprises a drainage ditch body, the inner wall of the drainage ditch body is provided with a plurality of groups of limiting pieces which are distributed at intervals, each group of limiting pieces comprises two limiting blocks which are oppositely arranged, each limiting block is an arc-shaped conical surface, the thickness of each limiting block is sequentially reduced from top to bottom, and each limiting block is in an arc-shaped protruding shape with the middle protruding inwards. The drainage ditch body is of the structure with the narrow upper portion and the wide lower portion, due to the fact that the opening in the top of the drainage ditch body is small, soil and stones falling from the upper portion are not prone to entering the drainage ditch body, and the problem that large stones fall into the drainage ditch to cause blocking is solved. Meanwhile, the flow volume of water flowing through the limiting pieces is reduced, and the limiting pieces are discontinuously distributed in the drainage ditch body, so that the flowing speed of the water flow is fast and slow when the water flow passes, a stronger washing effect can be formed on the inner wall of the drainage ditch body, and a small amount of entering soil can be stripped from the inner wall of the drainage ditch body and washed away by the water; and blockage caused by long-term soil accumulation is avoided.

The utility model discloses a high cold frozen soil area highway drainage ditch anti frost heave expansion device, including the drainage ditch body, the upper end surface of drainage ditch body is provided with the protection mechanism, and the protection mechanism is used for preventing the pedestrian and the vehicle to fall into the inside of drainage ditch body, and the protection mechanism includes the expansion screw that installs in the inside of drainage ditch body, and the outside of expansion screw is sleeved with the cushion block, and one end of cushion block is connected with the guardrail, and the inside of guardrail all is provided with the support rod, and the inside of drainage ditch body is provided with the anti frost heave mechanism, can use solar energy to heat the inside of drainage ditch body through burying the heat -collecting pipe and the cooling fin in the inside of drainage ditch body, effectively prevent the frost heave of drainage ditch body and highway, through the expansion pipe insertion inside drainage ditch body, and use screw thread connection expansion pipe, the convenient fixed installation support plate and the water stop tape, and the design of water stop tape can have good ductility and waterproofness, thereby can effectively prevent the water flow infiltration and frost heave caused by the expansion and settlement of drainage ditch body.

This utility model discloses an anti-settlement structure for highway manholes, comprising a hoop installed at the bottom of the manhole body surface. Fastening components are provided at both ends of the hoop, and the hoop is fixedly installed on the manhole body surface via the fastening components. Multiple hollow support seats are arranged in a circular array on the surface of the hoop, and an installation component is provided between the hollow support seats and the hoop. The installation component includes a connecting plate welded to the surface of the hoop. This utility model uses the fastening components to install the hoop at the bottom of the manhole body surface, and then installs the multiple hollow support seats onto the hoop surface via the installation component. The bottom of the hollow support seats is flush with the bottom of the manhole body. The cooperation of multiple hollow support seats increases the support area at the bottom of the manhole body, thus achieving the purpose of increasing the support area at the bottom of the manhole through multiple trapezoidal frames, reducing the possibility of manhole settlement.

The utility model provides a mountainous area road drainage structure which comprises an isolation belt, two road main bodies, a plurality of grid plates and two first collecting frames, the two road main bodies are oppositely arranged on the two sides of the isolation belt, and two-way driving can be carried out. The diversion gradient of the road body inclines downwards from the edge to the isolation belt, in rainy days, rainwater can flow to the grid plate along the diversion gradient, then leaks downwards to the road drainage channel through the grid plate and finally flows to a mountainous area drainage system along the road drainage channel, and therefore it is guaranteed that the rainwater on the road can be drained smoothly, and water accumulation on the road surface is avoided. When garbage such as deadwood, fallen leaves and fallen flowers which cannot leak from the grid plate exists, rainwater can wash the garbage staying above the grid plate to the garbage collecting channel, the garbage can flow into the first collecting frame on the downstream side along with the rainwater in the garbage collecting channel, the garbage on the road section is collected together through the first collecting frame, and therefore the garbage on the road section is collected. And the garbage is prevented from staying above the grid plate to influence smooth drainage.

The waterproof structure for the expressway comprises a drainage pipe, the inner wall of the drainage pipe is movably connected with a drainage plate, a drainage assembly is arranged at the bottom of the drainage plate, the outer wall of the drainage pipe is fixedly connected with a protection shell, and the inner wall of the drainage pipe is fixedly connected with an interception frame; and a telescopic adjusting rod is arranged on the outer wall of the drainage pipe, the output end of the telescopic adjusting rod is fixedly connected with a fixing block, the fixing block is located in the intercepting frame, telescopic springs are fixedly connected to the outer walls of the two sides of the fixing block, and one ends of the two telescopic springs are fixedly connected with cleaning shells. According to the waterproof structure for the expressway, the waterproof effect on the expressway is improved, high-effect drainage is conducted on the expressway through the drainage assembly in the rainstorm weather, the situation that the service life of the expressway is shortened due to the fact that the expressway is eroded by rainwater for a long time is avoided, and the service life of the expressway is prolonged. The waterproof paint is more suitable for waterproof use of expressways in the current society.

The utility model relates to the technical field of highway drainage, and discloses a highway drainage structure capable of avoiding blockage, which comprises a box body, a filter basket and a box cover, and is characterized in that the box cover is provided with a water inlet hole, the bottom of the box cover is fixedly connected with a mounting plate, the mounting plate is connected with a lock rod in a sliding manner, and the lock rod is fixedly connected with the filter basket. The locking rod is connected to the filtering basket in a penetrating and sliding mode, a fixing plate is fixedly connected to the locking rod, a locking spring is connected to the locking rod in a sleeving mode, a connecting plate is fixedly connected to one end of the locking rod, and a handle is fixedly connected to the middle of the sliding groove. During use, large garbage such as deadwood is preliminarily blocked by the aid of the water inlet hole, small impurities such as leaves and gravels are further filtered by the aid of the filter basket, blockage caused by the fact that the impurities enter a drainage system is effectively prevented, an operator can unlock and take out the filter basket by pulling the handle, operation is simple and convenient, and operation is convenient. The maintenance difficulty and the time cost are reduced, and the continuous operation of the drainage system is ensured.

The utility model relates to the technical field of road drainage, in particular to a road multifunctional spliced drainage component which comprises a water outlet assembly and a water blocking assembly, the water outlet assembly comprises a water outlet component and a first reinforcing mesh, and the first reinforcing mesh is arranged in the water outlet component; the water blocking assembly comprises a water blocking component, a top plate and a second reinforcing mesh; the water blocking component and the top plate form a [-shaped structure, and an opening of the [-shaped structure faces the water outlet component. The second reinforcing mesh is arranged in the [-shaped structure; the connecting end of the water outlet component is provided with a first splicing part, and the connecting end of the water blocking component is provided with a second splicing part matched with the first splicing part. The drainage component has the advantages that the drainage component can effectively solve the problem that a soil side ditch or a mortar side ditch is scoured when the gutter channel drains water, the gutter channel is prevented from discharging muddy water onto the road surface, the potential safety hazard of driving caused by the muddy water going on the road is eliminated, and the service life of the expressway is further prolonged.

The utility model relates to the technical field of road drainage ditch cleaning, in particular to a drainage ditch cleaning device which comprises a sundry collecting hopper, a driving device and a stirring device, the stirring device comprises a stirring rod and two turntables, and the two turntables are vertically and rotationally connected to the opposite faces of the left side and the right side of the inlet end of a collecting hopper body respectively. The axes of the two rotating discs coincide, the multiple stirring rods are evenly arranged in the circumferential direction of the rotating discs, the two ends of each stirring rod are fixedly connected with the two rotating discs respectively, the axes of the multiple stirring rods are parallel, and the driving device comprises a driving gear, a driven gear and a motor; the motor is arranged on the collecting hopper body, the axis of an output shaft of the motor is parallel to the axes of the rotating discs, the driving gear is coaxially and fixedly connected to the output end of the motor, and the driven gear is coaxially and fixedly connected with one rotating disc and meshed with the driving gear. The problem that the cleaning efficiency is low due to the fact that an inlet of a garbage box is possibly blocked by branches and large sundries is solved.

The invention discloses a gap type drainage system for an ultra-multi-lane ultra-wide pavement of an expressway, relates to the technical field of drainage of expressways, is used for drainage of the ultra-multi-lane ultra-wide pavement of the expressway, and comprises a gap type drainage ditch and a plurality of transverse drainage devices. The transverse drainage device comprises a gap type water collecting well, a transverse drainage pipe, a torrent groove and a drainage ditch. The double-yellow-line separation zone is arranged between the second lane and the third lane, and the gap type drainage ditches are arranged in the double-yellow-line separation zone to intercept water on the traffic lanes, so that the water flow path is reduced, and the water in the traffic lanes is drained out of the pavement structure more quickly. Water intercepted in the gap-type drainage ditches is temporarily stored in the gap-type drainage ditches, the bottoms of the water are discharged out of the pavement structure through the water collecting wells and the transverse drainage pipes in sequence, the transverse drainage pipes are externally connected with torrent grooves of highway slopes and finally discharged through the drainage ditches at the bottoms, and the situation that accumulated water affects highway driving safety is avoided.

The utility model discloses an efficient road drainage ditch cleaning device, which relates to the technical field of drainage ditch cleaning and comprises a spade body, a rod body and an auxiliary mechanism, the spade body is arranged in a split manner, the rod body is connected with the spade body, the rod body is arranged in a telescopic manner, the auxiliary mechanism is arranged at the bottom end of the spade body, and the spade body comprises a fixed spade plate, a movable spade plate and a first locking mechanism. The movable shovel plates are symmetrically arranged at the bottom end of the fixed shovel plate, and the first locking mechanism is arranged between the fixed shovel plate and the movable shovel plates. The shovel body is of a split structure, the use width of the shovel body can be adjusted according to the width of a drainage ditch, so that the shovel is more efficient when cleaning the drainage ditch, meanwhile, the auxiliary mechanism can crush soil through a sharp plate in the cleaning process, and the cleaning efficiency is improved. And therefore, deposited and caked soil in the drainage ditch can be conveniently shoveled out after being crushed, and efficient cleaning is further guaranteed.

The invention relates to the technical field of road maintenance, in particular to road drainage ditch self-leveling mortar and a preparation method thereof. The invention relates to self-leveling mortar for highway drainage ditches, which at least comprises the following raw materials: a gel material, graded aggregate of 20-200 meshes, a composite reinforcing agent and a functional additive, and the mass ratio of the gel material to the graded aggregate is (14-17): (9-12). The core contradiction that the self-leveling performance and the structural durability are difficult to consider in the highway drainage ditch construction process is greatly improved, the prepared mortar shows excellent fluidity and thixotropy in the construction process, automatic leveling and uniform covering can be achieved on the inclined ditch wall, the defects caused by manual leveling are effectively avoided, and the construction efficiency is improved. The construction efficiency and the forming quality are greatly improved, and the structure formed after hardening is compact and has the self-reinforcing characteristic.

The utility model belongs to the technical field of highway engineering, and particularly relates to a highway drainage side ditch and drainage pipeline connecting device which comprises a connecting shell, communicating grooves are formed in the surfaces of the two sides of the connecting shell, the drainage side ditch is connected to the surface of one side, on the outer sides of the communicating grooves, of the connecting shell, and a drainage pipe is connected to the surface of the bottom of the connecting shell. A containing groove is formed in the top surface of the connecting shell, and a flow guide block is connected to the inner side surface of the containing groove. The connecting shell, the containing groove, the flow guide block, the filter screen basket and the inserting rod are matched with one another, the filter screen basket can be installed in the connecting shell, rainwater in a drainage side ditch can pass through the filter screen basket before entering the drainage pipe, impurities in the rainwater are blocked and collected in the filter screen basket, the filter screen basket is large in capacity, and therefore the rainwater can be prevented from entering the drainage side ditch. The situation that the water inlet of the drainage pipeline is blocked due to the fact that sundries in the drainage side ditch are too fast is effectively avoided, the manual cleaning frequency is reduced, and drainage of water flow is ensured.

The utility model relates to the technical field of highway drainage channels, and discloses a filtering structure of a highway drainage channel, which comprises a channel body, two groups of bearing plates are symmetrically arranged in the channel body, a filtering mechanism for filtering impurities in water is arranged on the two groups of bearing plates, and an opening and closing mechanism is arranged on the filtering mechanism. The filtering mechanism comprises a filtering plate arranged on the two bearing plates, two moving plates are symmetrically connected to the filtering plate, two supporting rods are symmetrically installed on the top of each moving plate, and a top plate is jointly installed on the tops of the two supporting rods on the same side. The road drainage channel solves the problems that when an existing road drainage channel is used, garbage on the road surface can block the drainage channel along with water flow, meanwhile, when pedestrians pass through the drainage holes, mobile phones and other objects on the pedestrians sometimes fall into the flow channel through the drainage holes, the diameters of the drainage holes are small, the hands of the pedestrians cannot stretch into the lower portion of a sealing cover, and the drainage channel is blocked. And taking out is not convenient.

A kind of highway drainage groove crack firm quick healing structure, the crack (2) surface of drainage groove (1) is painted with concrete reinforcing agent (3), the surface of the solidified concrete reinforcing agent (3) is painted with oil-based waterproof structural adhesive (4), and the crack (2) is filled with oil-based waterproof structural adhesive (4);The surface of the solidified oil-based waterproof structural adhesive (4) is pasted with a composite caulking tape (5), and the width of the composite caulking tape (5) is greater than the width of the crack (2);The surface of the composite caulking tape (5) is painted with a layer of epoxy mortar (6).

The utility model relates to the technical field of road drainage, and particularly discloses a highway drainage facility which comprises a plurality of first drainage grooves and a plurality of second drainage grooves, the first drainage grooves and the second drainage grooves are transversely spliced and paved on a highway surface in a staggered mode, the cross section of a drainage channel of each first drainage groove is in an omega shape, and the cross section of a drainage channel of each second drainage groove is in an omega shape. The cross section of the drainage channel of the second drainage channel is in a U shape, the bottom faces of the drainage channels of the first drainage channels and the bottom faces of the drainage channels of the second drainage channels are located on the same virtual cylindrical face, and the top faces of the first drainage channels and the top faces of the second drainage channels are flush with the expressway surface. According to the fishbone-shaped drainage channel structure, a traditional drainage channel structure is improved, on the premise that the trafficability of a vehicle is guaranteed, the water inlet speed is increased, and the problem that water is accumulated on the road surface can be solved.

1. The name of the design product: highway drainage flume. 2. The use of the design product: for drainage of highway pavement water. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view.

The utility model relates to the technical field of highway side weeding, and discloses a highway side weeding device, comprising a shell, first pulleys are installed on both front and rear sides of the shell, a push handle is arranged on the right side of the shell, a weeding mechanism is arranged below the push handle, a connecting mechanism is arranged above the shell, a placement groove is opened on the right side of the shell, a placement cavity is opened inside the front and rear ends of the shell, a motor is fixedly arranged in the placement cavity, the weeding mechanism comprises a weeding part and a collecting part, the connecting mechanism comprises a connecting part and a fixing part, the weeding part comprises a rotating shaft, the rotating shaft is located inside the placement groove, a baffle blocks grass clippings generated after weeding to prevent grass clippings from flying around, a suction fan sequentially passes the generated grass clippings through a guide bin and a connecting bin and drops them into a collecting bin, a collecting bucket collects the grass clippings in the collecting bin, and can collect the generated grass clippings to prevent grass clippings from piling up on the highway side and causing blockage of the highway drainage system, and at the same time, improves the aesthetics of the highway side.

The utility model discloses a road drainage ditch which comprises an isolation plate arranged at the top of a drainage base, a plurality of flow holes are formed in the top of the isolation plate, a connecting frame of a hollow structure is fixedly connected to the top of the drainage base, convex edges are fixedly connected to the two sides of an inner cavity of the connecting frame, and limiting cylinders are fixedly connected to the tops of the convex edges. Water flows into the drainage base through the flow hole and is filtered through the filtering cover, then sundries are filtered, and when the sundries in the filtering cover need to be cleaned, only the flow hole needs to be opened, a limiting rod is rotated clockwise, a limiting block connected with the limiting rod slides on the inner surface of an annular groove, and then the sundries in the filtering cover can be cleaned. When the limiting block slides to the inner surface of the vertical groove, the sliding handle is driven to slide on the inner surface of the supporting cylinder through the acting force of the spring, so that a part of the limiting rod is bounced, and after the limiting rod releases limiting, the filtering cover is lifted through the limiting rod, and sundries are poured out, so that the purposes of filtering the sundries and facilitating cleaning can be achieved.

The invention relates to the technical field of filtering for highway drainage, in particular to a filtering structure for highway drainage pipe network engineering design, which comprises a drainage pipe, a water guide pipe is fixedly connected to the drainage pipe in a penetrating manner, a drainage groove is fixedly connected to the water guide pipe, a grating is arranged in the drainage groove in a sliding fit manner, and a warning rod is rotatably connected to the grating. The bottom of the grating is fixedly connected with the filter fence, the filter fence is fixedly connected with the anti-blocking mechanism, the drainage channel is internally fixedly connected with the jacking mechanism, and the water guide pipe is internally fixedly provided with the suction transmission mechanism. The grating can be lifted up through the jacking mechanism, multi-directional filtering is conducted through the filtering fence, blockage of plastic bag garbage is avoided, meanwhile, when the grating is lifted up, the warning rod can be automatically erected, passing vehicles and pedestrians are reminded to pay attention to surrounding environment changes, and unnecessary potential safety hazards are avoided.

The utility model relates to the technical field of highway drainage, and discloses a municipal rapid drainage system which comprises a frame, the right side of the frame is fixedly connected with a servo motor, the output end of the servo motor penetrates through the right side of the frame and is fixedly connected with a threaded rod, and the outer wall of the threaded rod is in threaded connection with a displacement plate. A sliding column is fixedly connected to the top of the right side of the inner wall of the frame, the middle of the sliding column penetrates through the top of the inner wall of the displacement plate, a scraping plate is fixedly installed at the bottom of the displacement plate, a filtering plate is fixedly installed on the rear side of the inner wall of the frame, and the left side and the right side of the frame communicate with bent pipelines. According to the utility model, the threaded rod is driven by the servo motor, so that the displacement plate which is limited to rotate by the sliding column can displace, and then the scraper blade is driven to clean the filter plate, so that the labor cost of manual cleaning is reduced, and the working efficiency of the system is improved.

The utility model discloses a gravity type retaining wall which is arranged on the front side of an excavation face of a side slope, and a retaining wall upper structure and a retaining wall lower structure of the gravity type retaining wall are connected through a mortise and tenon joint structure. The space between the gravity type retaining wall and the excavation face of the slope is filled with retaining wall rear common backfill soil and large-particle-size gravel backfill soil, the large-particle-size gravel backfill soil is arranged on the front side of the retaining wall rear common backfill soil, and a drainage ditch is formed in the top of the front side of the retaining wall lower structure. The space between the drainage ditch and the bottom of the front side of the retaining wall upper structure is sequentially filled with retaining wall front lower layer backfill soil and retaining wall front upper layer backfill soil from bottom to top, the drainage ditch is communicated with the retaining wall front lower layer backfill soil through drainage ditch drainage holes, and the large-particle-size gravel backfill soil is communicated with the retaining wall front lower layer backfill soil through retaining wall drainage holes. The gravity type retaining wall structure has the advantages that the gravity type retaining wall structure and the road drainage ditch are built together, secondary soil excavation during construction of the road drainage ditch is avoided, construction procedures are reduced, and construction safety is guaranteed.

The utility model discloses a highway subgrade slope drainage structure, and relates to the technical field of highway drainage. The drainage device comprises a drainage channel, a drainage channel, a drainage pipe and an overhaul well, one end of the drainage channel is communicated with an inner cavity of the drainage channel, the other end of the drainage channel is communicated with an inner cavity of the drainage pipe, the drainage pipe penetrates through the overhaul well, a cover plate is movably arranged at the opening end of the drainage channel, and a confluence groove is formed in the upper surface of the cover plate. According to the rainwater drainage device, the filtering assembly is arranged in the drainage channel, flowing-in rainwater is filtered under the action of the U-shaped frame and the filtering groove, the situation that the drainage pipe is blocked due to the fact that too many impurities exist in the rainwater is avoided, the overhaul and maintenance operation frequency of the drainage pipe is reduced, and the rainwater drainage efficiency is improved; the U-shaped frame is convenient and fast to maintain; and through the arrangement of the confluence groove, the flow speed of the rainwater is increased through the confluence groove, so that the rainwater rapidly enters the drainage channel through the antifouling groove.