Road inspection well construction system integrated with anti-settling apron

Abstract

The utility model discloses a kind of integrated anti-sinking boarding's road inspection well construction system, including anti-sinking boarding and well seat and the adjustable support screw assembly for connecting between anti-sinking boarding, well seat, including screw body, the screw body includes cylinder, adjustable screw is sleeved on the cylinder upper end, adjustable screw is adapted to have adjusting nut;Concrete solidification pouring layer, fill between the prefabricated slab body, well seat, wrap adjustable support screw assembly.The utility model can quickly and accurately adjust, resist settlement by setting anti-sinking boarding around wellhead, and setting adjustable support screw assembly for adjusting well seat flatness and concrete solidification pouring layer for facilitating well seat fixation, realize seamless connection of well lid elevation and asphalt pavement, improve road construction quality, speed up construction progress.

Description

Technical Field

[0001] This utility model belongs to the field of municipal road construction technology, and in particular relates to a road inspection well construction system with integrated anti-sinking slab. Background Technology

[0002] The surge in vehicles has placed higher demands on urban roads. Urban roads play a vital role in people's daily lives. According to incomplete statistics, there is an average of one manhole every 10-15 meters on urban roads. If a manhole is installed at a different height from the asphalt pavement, a vehicle will experience four bumps when passing over it, significantly impacting the driving experience. Therefore, the installation quality of manholes directly affects the smoothness of the asphalt pavement, thus affecting the driving experience.

[0003] Currently, in the construction or renovation of urban roads, the quality of the connection between manhole covers and asphalt pavement is a key indicator of the smoothness of urban roads and a direct reflection of the surface quality of urban asphalt pavement. Existing technologies mostly use bricks or wooden blocks to install and adjust manhole covers, resulting in slow installation and adjustment speeds and difficulty in leveling. Using specialized shims is also expensive, increasing construction costs. Furthermore, after installation and adjustment, the use of ordinary cement leads to a long curing period and makes the manholes prone to subsidence. Moreover, long-term vehicle traffic on the manhole covers can easily cause collapse around the covers. Utility Model Content

[0004] In view of the shortcomings of existing technology, the purpose of this utility model is to provide a road inspection well construction system with integrated anti-settlement slab, which can be quickly and accurately adjusted and resisted settlement, so as to achieve a seamless connection between the manhole cover elevation and the asphalt pavement.

[0005] This utility model provides the following technical solution:

[0006] A road inspection well construction system with integrated anti-sinking slab, including

[0007] The anti-sinking slab includes a precast slab body, wherein a circular opening coaxially arranged with the wellhead is provided in the middle of the precast slab body, and a plurality of first connectors are provided along the axial direction of the circular opening at the upper end of the precast slab body.

[0008] An adjustable support screw assembly includes a screw body, the screw body including a cylinder, an adjustable screw being sleeved on the upper end of the cylinder, an adjusting nut being adapted on the adjustable screw, a lower end anchoring part for connecting with a first connecting member being provided at the lower end of the cylinder, and an upper end connecting part being provided at the upper end of the adjustable screw.

[0009] The well base has several second connecting parts arranged axially along the edge of its lower end face for connecting with the upper end connecting part;

[0010] A concrete curing and grouting layer is filled between the precast slab and the well base, and encapsulates the adjustable support screw assembly.

[0011] Preferably, the first connector includes a pre-embedded connector seat disposed inside the upper end of the precast slab, and a plurality of first connecting screws are vertically arranged on the upper end face of the pre-embedded connector seat, the upper ends of the first connecting screws extending to the upper part of the precast slab.

[0012] Preferably, the lower anchoring part includes a first flange, which has a plurality of first bolt holes for the first connecting screw to pass through, and the upper end of the first connecting screw is fitted with a first fastening nut.

[0013] Preferably, the second connector includes a plurality of second connecting screws arranged vertically downwards, the upper connecting part includes a second flange, the second flange is provided with a plurality of second bolt holes for the second connecting screws to pass through, and the lower end of the second connecting screw is fitted with a second fastening nut.

[0014] Preferably, the lower end face of the well base is further provided with a second overlapping groove for accommodating the second flange, and the upper ends of a plurality of second connecting screws are perpendicularly connected to the bottom of the second overlapping groove.

[0015] Preferably, the first connector further includes a first overlapping groove disposed on the upper end face of the precast plate, the first overlapping groove being located between a plurality of the first connecting screws, and a first overlapping protrusion coaxially disposed on the lower end face of the first flange to match the first overlapping groove.

[0016] Preferably, there are several adjustable support screw assemblies, and the several adjustable support screw assemblies are arranged at equal intervals along the axial direction of the wellhead.

[0017] Preferably, the outer edge of the well base is also coaxially provided with a circular template for forming the concrete curing and grouting layer. The inner diameter of the circular template is larger than the outer diameter of the well base, and the upper end of the circular template is not lower than the upper end face of the well base.

[0018] Preferably, the precast slab is coaxially provided with an upwardly extending first inner lining plate at the inner circle position of the circular opening, and the lower end face of the well base is coaxially provided with a downwardly extending second inner lining plate at the inner circle position. The first inner lining plate and the second inner lining plate together form a circular inner template for forming the concrete curing and grouting layer.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] This utility model discloses a road manhole construction system with integrated anti-settlement slabs. By setting anti-settlement slabs around the manhole opening and installing adjustable support screw assemblies for adjusting the flatness of the manhole base and a concrete curing layer for facilitating the fixing of the manhole base between the anti-settlement slabs and the manhole base, it can quickly and accurately adjust and resist settlement, achieve seamless connection between the manhole cover elevation and the asphalt pavement, improve the quality of road construction, and accelerate the construction progress. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the structure of this utility model.

[0023] Figure 2 This utility model Figure 1 A magnified view of part A.

[0024] Figure 3 This is a schematic diagram of the adjustable support screw assembly of this utility model.

[0025] Figure 4 This is a schematic diagram of the positional distribution of the first connecting member of this utility model.

[0026] Figure 5 This is a schematic diagram of the positional distribution of the second connecting member of this utility model.

[0027] In the diagram: 1. Wellhead; 2. Anti-sinking slab; 21. Precast slab; 22. Circular opening; 23. First connector; 231. Embedded connector seat; 232. First connecting screw; 24. First overlapping groove; 25. First inner lining plate; 3. Adjustable support screw assembly; 31. Screw body; 311. Cylinder; 312. Adjustable screw; 313. Adjusting nut; 32. Lower anchoring part; 321. First flange; 322. 1. Bolt hole; 323. First fastening nut; 324. First lap protrusion; 33. Upper connection part; 331. Second flange; 332. Second bolt hole; 333. Second fastening nut; 4. Concrete curing grouting layer; 5. Well base; 6. Second connector; 7. Second lap groove; 8. Second inner lining plate; 9. Water-stabilized base layer; 10. Asphalt base layer; 11. Circular template; 12. Asphalt surface layer; 13. Brick lining. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0029] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0030] This utility model provides a road inspection well construction system with integrated anti-sinking slab, referenced Figure 1-5 The system includes an anti-sinking slab 2, which comprises a precast slab 21. A circular opening 22, coaxial with the wellhead 1, is provided in the center of the precast slab 21. Several first connecting members 23 are axially arranged along the circular opening 22 at the upper end of the precast slab 21. Each first connecting member 23 includes a pre-embedded connecting seat 231 located inside the upper end of the precast slab 21. Several first connecting screws 232 are vertically arranged upwards on the upper surface of the pre-embedded connecting seat 231, with the upper ends of the first connecting screws 232 extending to the outer surface of the precast slab 21. Each group of first connecting members 23 contains four first connecting screws 232, such as... Figure 5 As shown, there are three first connectors 23, with a central angle of 120 degrees between adjacent first connectors 23. The precast slab 21 has a size of 2m×2m and a thickness of 200mm, and is embedded with steel mesh. Its upper surface is flush with the upper surface of the water-stabilized base layer 9. The precast anti-settlement slab can enhance the overall integrity of the well perimeter structure.

[0031] refer to Figure 1-5 It also includes an adjustable support screw assembly 3, which includes a screw body 31, a cylinder 311, an adjustable screw 312 fitted on the upper end of the cylinder 311, an adjusting nut 313 adapted on the adjustable screw 312, a lower end anchoring part 32 for connecting with the first connecting member 23 at the lower end of the cylinder 311, and an upper end connecting part 33 at the upper end of the adjustable screw 312. The inner diameter of the cylinder 311 is 18mm, the adjustable screw 312 is a Q345B screw with a diameter of 18mm and a pitch of 1.5mm, and the thread fine adjustment achieves an error of ±1mm, which is superior to the traditional method.

[0032] The lower anchoring part 32 includes a first flange 321, which has a plurality of first bolt holes 322 for the first connecting screws 232 to pass through. The upper end of the first connecting screws 232 is fitted with a first fastening nut 323. Each group contains four first bolt holes 322 and four first connecting screws 232. The first connector 23 also includes a first overlapping groove 24 located on the upper surface of the precast slab 21, between the plurality of first connecting screws 232. The lower surface of the first flange 321 has a first overlapping protrusion 324 coaxially arranged to fit the first overlapping groove 24. The first flange 321 is placed in the first overlapping groove 24 and fixed by the first fastening nut 323 to connect the first flange 321 to the precast slab 21.

[0033] refer to Figure 1-5 The system also includes a well base 5, the lower edge of which has several second connecting members 6 arranged axially for connection with the upper connecting part 33. Each second connecting member 6 includes several vertically downward-arranged second connecting screws. The upper connecting part 33 includes a second flange 331 with several second bolt holes 332 for the second connecting screws to pass through. The lower ends of the second connecting screws are fitted with second fastening nuts 333. The lower surface of the well base 5 also has a second overlapping groove 7 for accommodating the second flange 331. The upper ends of the second connecting screws are vertically connected to the bottom of the second overlapping groove 7. Three second connecting members 6 are provided, with a central angle of 120 degrees between adjacent second connecting members 6. The second flange 331 is placed in the second overlapping groove 7 and fixed by the second fastening nuts 333 to connect it to the well base 5.

[0034] refer to Figure 1-5 It also includes a concrete curing and grouting layer 4, which is filled between the precast slab 21 and the manhole base 5, and encloses the adjustable support screw assembly 3. The concrete curing and grouting layer 4 uses quick-setting concrete, also known as manhole reinforcement concrete, with a strength grade ≥ C30 and a curing time ≤ 2 hours.

[0035] Several adjustable support screw assemblies 3 are provided, and these assemblies 3 are arranged sequentially at equal intervals along the axial direction of the wellhead 1. Three adjustable support screw assemblies 3 are provided, with a central angle of 120 degrees between adjacent assemblies 3.

[0036] The outer edge of the well base 5 is also coaxially provided with a circular template 11 for forming the concrete curing and pouring layer 4. The inner diameter of the circular template 11 is larger than the outer diameter of the well base 5, and the upper end of the circular template 11 is not lower than the upper end face of the well base 5. The inner diameter of the circular template 11 is 50-80 mm larger than the outer diameter of the well base 5, and the height of the circular template 11 is 0-50 mm higher than that of the well base 5.

[0037] The precast slab 21 is coaxially positioned with an upwardly extending first inner lining plate 25 at the inner ring of the circular opening 22, and a downwardly extending second inner lining plate 8 is coaxially positioned at the inner ring of the lower end face of the well base 5. The first inner lining plate 25 and the second inner lining plate 8 together form a circular inner template for shaping the concrete curing and pouring layer 4. The inner diameter of the first inner lining plate 25 is equal to the outer diameter of the second inner lining plate 8. The upper end of the first inner lining plate 25 is lower than the lower end face of the well base 5.

[0038] Working principle and advantages:

[0039] S1, Excavation and Leveling of the Original Road Surface: Before excavation, inspect each manhole on-site to clarify the route and depth of underground pipelines. Excavate the original road surface down to the subgrade to achieve the designed elevation and slope. At the same time, lower the elevation of the manhole opening to the design elevation of the subgrade, so that it is on the same plane as the subgrade. Roll the subgrade repeatedly with a road roller and conduct a subgrade deflection test (generally around 30MPa) until the design requirements are met. Use Q345B manganese steel plates with a thickness of 10mm and a diameter of 1.3 times the diameter of the manhole opening to lay on the manhole opening for protection, thus meeting the conditions for paving the water-stabilized base course.

[0040] S2, Water-stabilized base course paving: Water-stabilized base course should be paved in layers using a paver. If there are too many obstacles and conditions are not met, manual labor can be used in conjunction with excavators and loaders for paving. When paving the top layer of water-stabilized base course, a leveling machine should be used to level it to ensure that the unevenness does not exceed 1%. After the base course is paved, the water-stabilized base course should be chiseled open at the location of the manhole protective steel plate and the protective steel plate should be removed.

[0041] S3, Well Lifting: Thoroughly clean the crushed stone of the water-stabilized base layer on one side of the well opening to expose the top surface of the well opening. Construct the well opening to the position of -200mm from the elevation of the water-stabilized base layer. Ensure that the brick masonry lining 13 is laid flat and the mortar joints are full to avoid hollowing and cracking. At the same time, install the rainwater and sewage branch pipes according to the design requirements of the drawings. The pipe diameter, direction and elevation should meet the design requirements. The connection between the pipe and the well wall should be tight. After the well opening is completed, use a spirit level to check to ensure the flatness of the well opening.

[0042] S4, Anti-sinking slab installation: In order to ensure that the area around the wellhead does not collapse, cut a square pit with a length × width of 2m × 2m and a depth of 200mm around the wellhead, and then hoist in the prefabricated anti-sinking slab. The elevation of the upper surface of the anti-sinking slab is kept on the same reference plane as the elevation of the water-stabilized base layer.

[0043] S5, asphalt base course paving:

[0044] Before installing the manhole cover, the asphalt is laid in two layers according to the design requirements of the drawings. Before laying the asphalt bottom layer 10, the steel plate mentioned above is used to protect the manhole opening. After the asphalt bottom layer is laid and compacted by the rubber-tired roller, a portable electric cutter is used to cut a circular outline 50-100mm larger than its diameter along the edge of the protective steel plate, and then the steel plate is removed.

[0045] S6, Manhole Cover Installation: Along the extended road direction, mark the asphalt surface layer elevation 12 on the curb according to the design requirements. Calculate the asphalt surface layer elevation at the center line of the road according to the designed transverse slope (temporarily set at 1%) and mark it on the ruler. After the manhole cover is in place, hang steel wires at two points to find the baseline for the manhole cover installation elevation at the manhole opening. Before the manhole cover is in place, install three adjustable support screw assemblies 3 under the manhole cover. Through careful adjustment, ensure that the elevation and slope of the manhole cover are consistent with the elevation and slope of the steel wires. At the same time, use a spirit level to ensure the flatness along the extended road direction until the manhole cover installation error is within the range required by the drawings.

[0046] S7. Install a circular template 11 on the outer edge of the manhole cover, then fill the annular cavity formed by the circular template 11, the first inner lining plate 25, and the second inner lining plate 8 with quick-setting cement (also known as manhole reinforcement concrete) and vibrate it to ensure compaction. Pay particular attention to the area under the outer edge of the manhole cover and the connection between the manhole cover and the manhole opening, ensuring thorough vibration and careful inspection. The circular template 11 can be removed after two hours, and the concrete on the outer edge of the manhole cover can be removed and leveled with the surrounding perimeter of the manhole cover.

[0047] S8, Asphalt Surface Paving: After the manhole cover is installed and the asphalt surface layer is laid, a paver and wheel roller are used to pave and compact the asphalt surface layer. During the paving and compaction process, in addition to paying close attention to the height difference between the manhole cover and the asphalt surface layer, attention should also be paid to local manual assistance to ensure a seamless and flat connection between the manhole cover and the asphalt surface layer.

[0048] The present invention relates to a road manhole construction system with integrated anti-settlement slabs, which can quickly install and adjust manholes to achieve a smooth and seamless connection between the manhole and the asphalt pavement, greatly improving the quality of road construction and accelerating the construction progress.

[0049] In the description of this utility model, it should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0050] Furthermore, in the description of this utility model, the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0051] On the other hand, it should be noted that, unless otherwise explicitly specified and limited, the terms "located at," "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections, rotating connections, or indirect connections through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0052] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A road inspection well construction system with integrated anti-settlement slab, characterized in that: include The anti-sinking slab (2) includes a precast slab (21), the precast slab (21) has a circular opening (22) coaxial with the wellhead (1) in the middle, and a number of first connectors (23) are arranged on the upper end of the precast slab (21) along the axial direction of the circular opening (22). The adjustable support screw assembly (3) includes a screw body (31), the screw body (31) includes a cylinder (311), an adjustable screw (312) is sleeved on the upper end of the cylinder (311), an adjusting nut (313) is adapted on the adjustable screw (312), the lower end of the cylinder (311) is provided with a lower end anchoring part (32) for connecting with the first connecting member (23), and the upper end of the adjustable screw (312) is provided with an upper end connecting part (33). Well base (5), the edge of the lower end face of the well base (5) is provided with a number of second connecting parts (6) for connecting with the upper end connecting part (33) along its axial direction; A concrete curing grouting layer (4) is filled between the precast slab (21) and the well base (5) and wraps the adjustable support screw assembly (3).

2. The road inspection well construction system with integrated anti-settlement slab as described in claim 1, characterized in that, The first connector (23) includes a pre-embedded connector (231) located inside the upper end of the precast slab (21). The upper end face of the pre-embedded connector (231) is provided with a plurality of first connecting screws (232) that are vertically upward. The upper end of the first connecting screws (232) extends to the outside of the precast slab (21).

3. The road inspection well construction system with integrated anti-settlement slab as described in claim 2, characterized in that, The lower anchoring part (32) includes a first flange (321), on which a plurality of first bolt holes (322) are provided for the first connecting screw (232) to pass through, and the upper end of the first connecting screw (232) is fitted with a first fastening nut (323).

4. The road inspection well construction system with integrated anti-settlement slab as described in claim 1, characterized in that, The second connector (6) includes a plurality of second connecting screws arranged vertically downwards. The upper connecting part (33) includes a second flange (331). The second flange (331) is provided with a plurality of second bolt holes (332) for the second connecting screws to pass through. The lower end of the second connecting screw is fitted with a second fastening nut (333).

5. The road inspection well construction system with integrated anti-settlement slab as described in claim 3, characterized in that, The first connector (23) further includes a first overlapping groove (24) provided on the upper end face of the precast plate (21). The first overlapping groove (24) is located between a plurality of the first connecting screws (232). The lower end face of the first flange (321) is coaxially provided with a first overlapping protrusion (324) that is adapted to the first overlapping groove (24).

6. The road inspection well construction system with integrated anti-settlement slab as described in any one of claims 1-5, characterized in that, The adjustable support screw assembly (3) is provided in several units, and the several adjustable support screw assemblies (3) are arranged at equal intervals along the axial direction of the wellhead (1).

7. The road inspection well construction system with integrated anti-settlement slab as described in claim 6, characterized in that, The outer edge of the well base (5) is also coaxially provided with a circular template (11) for forming the concrete curing grouting layer (4). The inner diameter of the circular template (11) is larger than the outer diameter of the well base (5), and the upper end of the circular template (11) is not lower than the upper end face of the well base (5).

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