Well lid and well seat structure for layered construction and construction method of well lid and well seat structure

Abstract

The invention provides a well lid and well seat structure for layered construction and a construction method of the well lid and well seat structure. The lower end face of the transition walling crib is connected with the walling crib base; the well lid is connected with the upper end face of the transition well ring. According to the well lid and well seat structure for layered construction and the construction method of the well lid and well seat structure, the height of the well seat and the well lid can be adjusted along with the change of the paving thickness of asphalt concrete. The construction process is simplified, the working efficiency is improved, the smoothness of the well lid and the road surface can be kept for a long time, and the safety and attractiveness of the road are effectively improved. And when the asphalt concrete is paved to the position of the inspection well, the well seat and the well cover with the same thickness are mounted according to the paving thickness, and the paver smoothly passes through the inspection well for one-time paving forming. The well ring base and the transition well ring are installed in stages, the temporary well cover is used in cooperation, continuous construction in the multi-layer asphalt concrete paving process is achieved, and the construction efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the field of underground infrastructure inspection wells, and more specifically, relates to a well cover and well seat structure for layered construction and a construction method thereof. Background Art

[0002] Inspection wells are devices set up for the inspection, maintenance and installation of urban underground infrastructure such as power supply, water supply, drainage, sewage, communication, cable TV, gas pipes, street light lines, etc. Inspection wells are generally set up at pipeline intersections, bends, places where pipe diameters or slopes change, and at regular intervals on straight pipe sections to facilitate regular inspection of ancillary structures.

[0003] During the installation of manhole covers on asphalt pavements, it is usually necessary to spread asphalt concrete around the manhole to ensure that part of the road surface around the manhole is flat. Limited by the paving height of the asphalt paver, if the manhole cover is installed in place at one time, there is a problem that the paver cannot pave normally for passage. In order to solve this problem, the existing construction method usually adopts overall paving first and then excavation and partial paving. Specifically: First, the lower layer of asphalt concrete is paved on the entire road surface. This can ensure that the paver paves and forms the entire lower layer at one time, ensuring the integrity of the asphalt lower layer. Second, after the asphalt concrete is paved, a foundation pit is excavated around the location of the inspection well, and the well ring reinforcement and manhole cover installation process are completed in the foundation pit. Third, finally, the excavated area around the inspection well is filled with asphalt concrete and fully rolled to form. This construction method requires paving the road surface and the area around the inspection well, removing the asphalt around the well, and refilling the asphalt around the well. The construction process is cumbersome and the construction efficiency is low. The road surface and the area around the well cannot ensure the integrity of the road surface structure because of the phased paving. It is not only unsightly, but also easily damaged by driving and natural conditions after long-term use, causing the asphalt concrete around the well to crack and fall off. That is, the existing construction method has the problems of wasting materials, being environmentally unfriendly, uneconomical, cumbersome construction, and low efficiency. Summary of the invention

[0004] The purpose of the present invention is to provide a manhole cover and seat structure for layered construction and a construction method thereof, aiming to solve the technical problems of complicated construction and low efficiency existing in the prior art.

[0005] To achieve the above object, the technical solution adopted by the present invention is: to provide a manhole cover and seat structure for layered construction, comprising:

[0006] Well ring base;

[0007] A transition well ring, the lower end surface of which is connected to the well ring base;

[0008] The manhole cover is connected to the upper end surface of the transition well ring.

[0009] Preferably, there are multiple transition well rings, and adjacent transition well rings are connected end to end; and the lower end surface of the transition well ring located at the bottom is connected to the upper end surface of the well ring base. The upper end surface of the transition well ring located at the top is connected to the lower end surface of the well cover.

[0010] A construction method for a manhole cover and seat structure for layered construction, characterized in that it is used to install a manhole cover and seat structure for layered construction as described in any one of the above, comprising the following steps:

[0011] Before the construction of the asphalt lower layer, clean the area around the inspection well; install the well ring base and cover it with a temporary well cover; then spread the first layer of oil on the road surface and around the temporary well cover;

[0012] After the first layer of oil cools down and before the second layer of oil is laid, remove the temporary well cover; then install the transition well ring on the well ring base and connect them; then install the temporary well cover on the transition well ring;

[0013] Remove the temporary manhole cover and install the formal manhole cover. The elevation of the manhole cover should be consistent with the elevation and slope of the road surface.

[0014] Preferably, the height of the well ring base and the thickness of the transition well ring are determined by the paving thickness of each layer of oil.

[0015] Preferably, the number of transition well circles is set depending on the number of layers of laid oil.

[0016] Preferably, the process of cleaning the area around the inspection well before the construction of the asphalt lower layer; installing the well ring base and covering the temporary well cover; and then spreading the first layer of oil around the road surface and the temporary well cover at one time includes:

[0017] Before laying the first layer of oil, a temporary manhole cover is installed on the base of the manhole ring, and the height of the manhole ring base protruding from the foundation pit concrete layer is consistent with the thickness of the first layer of oil laid.

[0018] Preferably, the step of removing the temporary manhole cover and installing the formal manhole cover includes:

[0019] Before spraying binding oil and asphalt paving, brush diesel on the surface of the temporary manhole cover.

[0020] Preferably, the step of removing the temporary manhole cover and installing the formal manhole cover includes:

[0021] Spread the asphalt mixture and roll the shaped asphalt mixture.

[0022] Preferably, before the construction of the asphalt lower layer, the area around the inspection well is cleaned; the well ring base is installed, and a temporary well cover is covered; then the first layer of oil is spread on the road surface and around the temporary well cover at one time, including: before the first layer of oil is spread, the surface debris of the base layer is cleaned and a layer of emulsified asphalt and / or stone chips and / or coarse sand is evenly spread on the base layer using a construction device; wherein the construction device includes:

[0023] A vehicle body, provided with a receiving hole;

[0024] A material discharge container is arranged in the accommodating hole; the material discharge container comprises a frame body arranged in the accommodating hole, the frame body is connected to the vehicle body; a top plate structure connected to the frame body; a bottom plate is arranged below the top plate structure; a deformation tube having one end sealedly connected to the top plate structure and the other end sealedly connected to the bottom plate, the deformation tube having a first use state and a second use state; a driving component is connected to the frame body and the bottom plate at the same time, and the use state of the deformation tube can be adjusted by the driving component;

[0025] In the first use state, the deformation tube is in a normal use state, and the top plate structure, the bottom plate, and the deformation tube constitute a storage space, which can be used to store emulsified asphalt and / or stone chips and / or coarse sand; in the second use state, the driving assembly drives the bottom plate to move toward the top plate structure, and the deformation tube is in a compressed state;

[0026] A structure clamping assembly is arranged on the bottom plate; the structure clamping assembly is used to fix the inspection well structure;

[0027] A driving assembly is connected to the vehicle body, and the driving assembly is used to drive the vehicle body to move.

[0028] Preferably, the structural clamping assembly includes a component body and a claw body connected to the component body; the claw body is movably connected to the component body; at least two groups of claw bodies are provided; the claw body can be driven by the structural body to move relative to the structural body; and the clamping or removal of other structures can be achieved by adjusting the movement state of the claw body.

[0029] The beneficial effects of a manhole cover and seat structure for layered construction and a construction method thereof provided by the present invention are as follows: Compared with the prior art, the manhole cover and seat structure for layered construction and a construction method thereof provided by the present invention have the function of adjusting the height of the seat and the cover as the thickness of the asphalt concrete paving changes. It not only simplifies the construction process and improves work efficiency, but also can maintain the flatness of the manhole cover and the road surface for a long time, effectively improving the safety and aesthetics of the road. When the asphalt concrete is paved to the inspection well position, the manhole seat and cover of the same thickness are installed through the paving thickness, and the paver smoothly passes through the inspection well and paves the formation at one time. By installing the well ring base and the transition well ring in stages and using a temporary manhole cover in combination, continuous construction is achieved during the multi-layer asphalt concrete paving process, improving construction efficiency; at the same time, through precise positioning and reinforcement of the structure, the accuracy of the manhole cover installation position and the installation quality are ensured, extending the service life of the road. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0031] Figure 1 A schematic structural diagram of a manhole cover and seat structure for layered construction provided by an embodiment of the present invention;

[0032] Figure 2 A schematic structural diagram of another manhole cover and seat structure for layered construction provided by an embodiment of the present invention;

[0033] Figure 3 A schematic diagram of a construction device used in a construction method of a manhole cover and seat structure for layered construction provided by an embodiment of the present invention Figure 1 ;

[0034] Figure 4 A schematic diagram of a construction device used in a construction method of a manhole cover and seat structure for layered construction provided by an embodiment of the present invention Figure 2 ;

[0035] Figure 5 for Figure 4 A schematic diagram of the structure in section along AA;

[0036] Figure 6 A schematic diagram of a construction device used in a construction method of a manhole cover and seat structure for layered construction provided by an embodiment of the present invention Figure 3 ;

[0037] Figure 7A schematic diagram of a construction device used in a construction method of a manhole cover and seat structure for layered construction provided by an embodiment of the present invention Figure 4 ;

[0038] Figure 8 A schematic diagram of a material discharge container used in a construction device for a construction method of a manhole cover and seat structure for layered construction provided by an embodiment of the present invention Figure 1 ;

[0039] Fig. 9 A schematic diagram of a material discharge container used in a construction device for a construction method of a manhole cover and seat structure for layered construction provided by an embodiment of the present invention Figure 2 ;

[0040] Fig.10 A schematic structural diagram of a structural clamping assembly adopted by a construction device used in a construction method of a manhole cover and seat structure for layered construction provided in an embodiment of the present invention.

[0041] In the figure: 1. vehicle body; 11. receiving hole; 2. material discharge container; 21. frame; 22. top plate structure; 23. bottom plate; 24. deformation tube; 25. driving assembly; 3. structural clamping assembly; 31. assembly body; 32. claw body; 4. driving assembly; 5. material discharge structure; 6. well ring base; 7. transition well ring; 71. first well ring; 72. second well ring; 8. well cover. DETAILED DESCRIPTION

[0042] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0043] Please also read Figures 1 to 10 Now, a manhole cover and seat structure for layered construction provided by the present invention is described. The manhole cover and seat structure for layered construction includes a manhole ring base 6, a transition manhole ring 7 and a manhole cover 8, wherein the lower end surface of the transition manhole ring 7 is connected to the manhole ring base 6; and the manhole cover 8 is connected to the upper end surface of the transition manhole ring 7.

[0044] In some embodiments, there are multiple transition well rings 7, and adjacent transition well rings 7 are connected end to end, that is, the upper end surface of the transition well ring 7 located at the bottom is connected to the lower end surface of the transition well ring 7 located at the top. The lower end surface of the transition well ring 7 located at the bottom is connected to the upper end surface of the well ring base 6. The upper end surface of the transition well ring 7 located at the top is connected to the lower end surface of the well cover 8. Specifically, the number of transition well rings 7 is set depending on the number of layers of oil laid. Specifically, when the number of layers of oil laid is n (n is not less than 2), the number of transition well rings 7 is n-1. Exemplarily, when the number of layers of oil laid is 2, the number of transition well rings 7 used is 1. When the number of layers of oil laid is 3, the number of transition well rings 7 used is 2, and at this time the transition well ring 7 includes a first well ring 71 and a second well ring 72. The second well ring 72 is connected to the first well ring 71.

[0045] The present invention also provides a construction method for a manhole cover and seat structure for layered construction. Figures 1 to 10 , including the following steps:

[0046] S1. Before the construction of the asphalt lower layer, clean the area around the inspection well; install the well ring base 6 and cover it with a temporary well cover; then spread the first layer of oil on the road surface and around the temporary well cover at one time;

[0047] In this step, the area around the inspection well is cleaned before the asphalt lower layer is constructed, and the concrete surface is roughened (it can also be roughened before the concrete is finally set) to facilitate the combination with the asphalt. The first layer of oil is laid on the entire road surface using a paver.

[0048] Before laying the first layer of oil, a temporary manhole cover is placed on the manhole ring base 6, and the height of the manhole ring base 6 protruding from the foundation pit concrete layer is consistent with the thickness of the first layer of oil to be laid, so that the paver can smoothly advance the paving. The road surface and the area around the temporary manhole cover are paved at one time to improve construction efficiency. And ensure the integrity of the first layer of oil paving around the road surface and the temporary manhole cover.

[0049] In this step, before spreading the first layer of oil, the surface debris of the base layer should be cleaned up, and then a layer of emulsified asphalt and stone chips or coarse sand with a particle size of 5 to 10 mm should be evenly spread on the base layer using a construction device to enhance the adhesion between the base layer and the asphalt surface layer and seal the gaps on the surface of the base layer.

[0050] In this step, temporary well covers are made according to the corresponding well ring sizes. When laying each layer of oil, the well ring base is covered with temporary well covers, and the temporary well covers can be reused.

[0051] S2, after the first layer of oil is cooled and before the second layer of oil is laid, the temporary well cover is removed; then the transition well ring 7 is installed on the well ring base 6 and connected; then the temporary well cover is installed on the transition well ring 7;

[0052] In this step, after the first layer of oil cools down and before the second layer of oil is laid, the temporary manhole cover is removed first. The temporary manhole cover can be reused in the subsequent paving steps.

[0053] The first well ring 71 is installed on the well ring base 6. The height of the first well ring 71 protruding from the well ring base 6 is consistent with the thickness of the second layer of oil. The structure of the well ring base 6 and each transition well ring 7 can be as shown in the attached figure. Figure 2 shown.

[0054] A temporary manhole cover is installed on the first manhole ring 71, and the first manhole ring 71 and the upper and lower layers of the manhole ring base 6 are welded by cast iron welding method (usually arc welding is used for cast iron cold welding, and different cast iron welding rods can be selected according to the requirements of the cast iron workpiece).

[0055] In this step, if a third layer of oil is to be laid, the third layer is laid using the same construction method after the second layer of oil is cooled. Specifically, before laying the third layer of oil after the second layer of oil is cooled, the temporary well cover is removed. The second well ring 72 is installed on the first well ring 71. The height of the second well ring 72 protruding from the first well ring 71 is consistent with the thickness of the third layer of oil. The structure of the well ring base 6 and each transition well ring 7 can be as shown in the attached figure. Figure 1 As shown. Then install the temporary manhole cover. The upper and lower connections between the second manhole ring 72 and the first manhole ring 71 are welded by cast iron welding method (usually welding rod arc welding is used for cast iron cold welding, and different cast iron welding rods can be selected according to the requirements of the cast iron workpiece).

[0056] S3. Remove the temporary manhole cover and install the formal manhole cover 8. The elevation of the manhole cover should be consistent with the elevation and slope of the road surface.

[0057] In this step, the formal manhole cover is installed last to avoid contamination by the paved asphalt. The manhole cover should be installed to ensure that the cross is consistent with the driving direction. The elevation of the manhole cover should be consistent with the elevation and slope of the road surface. The binding oil on the surface of the asphalt concrete should be sprayed evenly and firmly bonded. Before spraying the binding oil and paving asphalt, a proper amount of diesel should be brushed on the surface of the temporary manhole cover to ensure that the manhole cover is not contaminated. The paved asphalt mixture should be rolled immediately, and the compaction degree of the asphalt mixture should meet the requirements of the design specifications. The asphalt mixture should be rolled immediately after paving and shaping. The rolling procedure is: initial compaction → re-compacting → final compaction.

[0058] It should be noted that the height of the well ring base 1 and the thickness of the transition well ring 2 are determined by the paving thickness of each layer of oil. The number of transition well rings 2 is determined by the number of layers of paved oil.

[0059] The present invention also provides a construction device for executing the steps of the construction method of the manhole cover and seat structure for layered construction, please refer to Figures 1 to 10The construction device includes: a vehicle body 1, a material discharge container 2, a structure clamping assembly 3 and a driving assembly 4. The vehicle body 1 is provided with a receiving hole 11; the material discharge container 2 is arranged in the receiving hole 11; the material discharge container 2 includes a frame 21 arranged in the receiving hole 11, and the frame 21 is connected to the vehicle body 1; a top plate structure 22 connected to the frame 21; a bottom plate 23 is arranged below the top plate structure 22; a deformation tube 24 with one end sealedly connected to the top plate structure 22 and the other end sealedly connected to the bottom plate 23, and the deformation tube 24 has a first use state and a second use state; a driving assembly 25 is connected to the frame 21 and the bottom plate 23 at the same time, and the use state of the deformation tube 24 can be adjusted by the driving assembly 25. In the first use state, the deformation tube 24 is in a normal use state, and the top plate structure 22, the bottom plate 23, and the deformation tube 24 constitute a receiving space, and the receiving space can be used to receive emulsified asphalt. In the second use state, the deformation tube 24 is in a compressed state, and the driving assembly 25 drives the bottom plate 23 to move toward the top plate structure 22. The structure clamping assembly 3 is arranged on the bottom plate 14; the structure clamping assembly 3 is used to fix the inspection well structure. The driving assembly 4 is connected to the vehicle body 1, and the driving assembly 4 is used to drive the vehicle body 1 to move.

[0060] As a specific implementation of the present invention, please refer to Figures 3 to 10 The driving assembly 4 includes a plurality of groups of running wheel structures arranged on the lower end surface of the vehicle body 1 and a driving motor structure arranged on the vehicle body 1 for driving the running wheel structures to run. In any feasible embodiment, two groups of running wheel structures are provided. One group is arranged at the front end of the accommodating hole 11. The other group is arranged at the rear end of the accommodating hole 11. The driving motor structure is transmission-connected to any one group of running wheel structures. The driving motor structure operates to drive the running wheel structure transmission-connected thereto to rotate, thereby driving the vehicle body 1 and the other group of running wheel structures to move. That is, at this time, the running wheel structure connected to the driving motor structure is the driving wheel, and the other group of running wheel structures is the driven wheel.

[0061] As a specific implementation of the present invention, please refer to Figures 3 to 10 The structural clamping assembly 3 includes an assembly body 31 and a claw body 32 connected to the assembly body 31. The claw body 32 is movably connected to the assembly body 31. There are at least two groups of claw bodies 32. The claw body 32 can be driven by the structural body 31 to move relative to the structural body 31. The movement state of the claw body 32 can be adjusted to achieve clamping or removal of other structures (such as the well ring base 6, the transition well ring 7, and the well cover 8).

[0062] In any achievable embodiment, the component body 31 is connected to the base plate 23. Specifically, a connecting groove is provided on the bottom surface of the base plate 23. The structural body 31 is fixed in the connecting groove by means of a bolt structure, a slot structure and the like. The component body 31 includes a housing, a driving mechanism disposed in the housing, and a movable block disposed on the lower end surface of the housing. The movable block is slidably connected to the housing, the movable block is transmission-connected to the driving structure, and the movable block is detachably connected to the claw body 32. During use, the specifications of the claw body 32 can be replaced according to actual new needs so as to more effectively complete the clamping or unloading operation of other structures. Specifically, the lower end surface of the housing is circular, and the movable blocks are provided in three groups along the circumference of the lower end surface of the housing, that is, the angle between adjacent movable blocks is 120°. The claw body 32 is provided with three groups corresponding to the movable blocks one by one. The driving structure can simultaneously drive the three groups of movable blocks to produce forward and backward reciprocating motion along the radial direction.

[0063] As a specific implementation of the present invention, please refer to Figures 3 to 10 , the top plate structure 22 includes a top plate body, and a perforation is provided on the top plate body. A sealing plate is rotatably connected to the top plate body. The sealing plate has a first use state and a second use state. In the first use state, the sealing plate can seal the perforation. In the second use state, the sealing plate rotates relative to the top plate body, opens the perforation, and fills the material into the accommodation space through the open perforation. The frame 21 is spliced ​​by a plurality of plate bodies. Specifically, the frame 21 includes a rectangular top frame and a vertical plate connected to the rectangular top frame. There are four vertical plates, and they are respectively located at the four corners of the rectangular top frame. A slide groove is provided on the vertical plate. The bottom plate 23 is a rectangular plate structure. The four corners of the bottom plate 23 are respectively provided with sliders adapted to the slide groove. The deformation tube 24 can produce elastic deformation, and specifically, the deformation tube 24 can be a rubber tube body or a soft plastic tube body. One end of the deformation tube 24 is sealed and connected to the upper end surface of the bottom plate 23, and the other end is sealed and connected to the lower end surface of the top plate structure 22. A discharge structure 5 is provided on the bottom plate 23. The material can be released through the discharge structure 5. Specifically, the discharge structure 5 includes a discharge pipe arranged on the bottom plate 23 and connected to the accommodating space, and an electric valve is arranged on the discharge pipe. The release or blocking of the filler can be achieved by controlling the use state of the electric valve.

[0064] The driving assembly 25 includes a first assembly and a second assembly, wherein the first assembly includes a slider structure arranged on the bottom plate 23, and a sliding plate connected to the rectangular top frame. The sliding plate is provided with a slider slot adapted to the slider structure. The slider structure is installed in the slider slot. The second assembly includes a connecting block arranged on the bottom plate. The second assembly also includes a lifting driving structure connected to the vertical plate or the rectangular top frame. The lifting driving structure includes a driving housing connected to the vertical plate or the rectangular top frame, a driving motor arranged in the housing, and a rotating wheel arranged in the housing and connected to the housing for rotation. The rotating wheel is provided with two groups, and the two groups of rotating wheels are arranged at a certain distance. The driving motor can simultaneously drive the two groups of rotating wheels to rotate. The lifting driving structure also includes a rope body, one end of which is wound around any rotating wheel, and the other end is wound and fixed with the other rotating wheel. The driving motor can wind or release the rope body by driving the rotation of the two groups of rotating wheels, thereby realizing the synchronous lifting or lowering of the connecting block.

[0065] The present invention provides a manhole cover and seat structure for layered construction and a construction method thereof. Compared with the prior art, the height of the manhole seat and the manhole cover can be adjusted as the thickness of the asphalt concrete paving changes. It not only simplifies the construction process and improves work efficiency, but also can maintain the flatness of the manhole cover and the road surface for a long time, effectively improving the safety and aesthetics of the road. When the asphalt concrete is paved to the inspection well position, the manhole seat and manhole cover of the same thickness are installed according to the paving thickness, and the paver smoothly passes through the inspection well and paves and forms it in one time. By installing the manhole ring base and the transition manhole ring in stages and using temporary manhole covers in combination, continuous construction is achieved during the multi-layer asphalt concrete paving process, improving construction efficiency; at the same time, through precise positioning and reinforcement of the structure, the accuracy of the manhole cover installation position and the installation quality are ensured, extending the service life of the road. The use of this manhole cover structure can meet the needs of paving the asphalt surface layer in two or three layers, respectively, without the need to adjust the manhole ring construction.

[0066] The use of the construction device can automatically realize the transportation and installation of other structures (such as the well ring base 6, the transition well ring 7, and the well cover 8), which can save manpower and effectively improve the construction efficiency. The use of the construction device can also automatically and efficiently realize the spreading of emulsified asphalt, effectively improving the construction efficiency.

[0067] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A manhole cover and seat structure for layered construction, characterized in that: include: Well ring base; A transition well ring, the lower end surface of which is connected to the well ring base; The manhole cover is connected to the upper end surface of the transition well ring.

2. A manhole cover and seat structure for layered construction as claimed in claim 1, characterized in that: There are multiple transition well rings, and adjacent transition well rings are connected end to end; and the lower end surface of the transition well ring located at the bottom is connected to the upper end surface of the well ring base. The upper end surface of the transition well ring located at the top is connected to the lower end surface of the well cover.

3. A construction method for a manhole cover and seat structure for layered construction, characterized in that: The method for installing a manhole cover and seat structure for layered construction as claimed in any one of claims 1 to 2 comprises the following steps: Before the construction of the asphalt lower layer, clean the area around the inspection well; install the well ring base and cover it with a temporary well cover; then spread the first layer of oil on the road surface and around the temporary well cover; After the first layer of oil cools down and before the second layer of oil is laid, remove the temporary well cover; then install the transition well ring on the well ring base and connect them; then install the temporary well cover on the transition well ring; Remove the temporary manhole cover and install the formal manhole cover. The elevation of the manhole cover should be consistent with the elevation and slope of the road surface.

4. A construction method for a manhole cover and seat structure for layered construction as claimed in claim 3, characterized in that: The height of the well ring base and the thickness of the transition well ring are determined by the spreading thickness of each layer of oil.

5. The construction method of a manhole cover and seat structure for layered construction as claimed in claim 3, characterized in that: The setting of the number of transition well rings depends on the number of layers of oil laid.

6. The construction method of a manhole cover and seat structure for layered construction as claimed in claim 3, characterized in that: Before the construction of the asphalt lower layer, the surrounding area of ​​the inspection well is cleaned; the well ring base is installed, and a temporary well cover is installed; and then the first layer of oil is spread around the road surface and the temporary well cover at one time, including: Before laying the first layer of oil, a temporary manhole cover is installed on the base of the manhole ring, and the height of the manhole ring base protruding from the foundation pit concrete layer is consistent with the thickness of the first layer of oil laid.

7. The construction method of a manhole cover and seat structure for layered construction as claimed in claim 3, characterized in that: The removal of the temporary manhole cover and installation of the formal manhole cover include: Before spraying binding oil and asphalt paving, brush diesel on the surface of the temporary manhole cover.

8. The construction method of a manhole cover and seat structure for layered construction as claimed in claim 3, characterized in that: The removal of the temporary manhole cover and installation of the formal manhole cover include: Spread the asphalt mixture and roll the shaped asphalt mixture.

9. The construction method of a manhole cover and seat structure for layered construction as claimed in claim 3, characterized in that: Before the construction of the asphalt lower layer, the surrounding of the inspection well is cleaned; the well ring base is installed, and a temporary well cover is covered; then the first layer of oil is spread on the road surface and the surrounding of the temporary well cover at one time, including: before the first layer of oil is spread, the surface debris of the base layer is cleaned, and then a layer of emulsified asphalt and / or stone chips and / or coarse sand is evenly spread on the base layer using a construction device; wherein, the construction device includes: A vehicle body, provided with a receiving hole; A material discharge container is arranged in the accommodating hole; the material discharge container comprises a frame body arranged in the accommodating hole, the frame body is connected to the vehicle body; a top plate structure connected to the frame body; a bottom plate is arranged below the top plate structure; a deformation tube having one end sealedly connected to the top plate structure and the other end sealedly connected to the bottom plate, the deformation tube having a first use state and a second use state; a driving component is connected to the frame body and the bottom plate at the same time, and the use state of the deformation tube can be adjusted by the driving component; In the first use state, the deformation tube is in a normal use state, and the top plate structure, the bottom plate, and the deformation tube constitute a storage space, and the storage space can be used to store emulsified asphalt and / or stone chips and / or coarse sand; In the second use state, the driving assembly drives the bottom plate to move toward the top plate structure, and the deformation tube is in a compressed state; A structural clamping assembly is arranged on the bottom plate; the structural clamping assembly is used to fix the inspection well structure; A driving assembly is connected to the vehicle body, and the driving assembly is used to drive the vehicle body to move.

10. The construction method of a manhole cover and seat structure for layered construction according to claim 9, characterized in that: The structural clamping assembly includes a component body and a claw body connected to the component body; the claw body is movably connected to the component body; at least two groups of claw bodies are provided; the claw body can be driven by the structural body to move relative to the structural body; and the clamping or removal of other structures can be achieved by adjusting the movement state of the claw body.

Images