Integrated construction method of inspection well with setting steel sleeve for road anti-settling

Abstract

The present application relates to the technical fields of municipal road and inspection well construction, and discloses a shaped steel sleeve auxiliary road anti-settlement inspection well integrated forming construction method, which comprises a roadbed, a cushion layer for dispersing load stress is laid on the upper end of the roadbed, a base layer for dispersing generated load vertical force is laid on the upper end of the cushion layer, a pouring layer for walking and driving of people and vehicles is laid on the upper end of the cushion layer, a displacement prevention mechanism for preventing displacement of the pouring layer is arranged in the pouring layer, after the well mechanism and the supporting mechanism are completed, the reinforcing mechanism is constructed, after the construction of the reinforcing mechanism is completed, the reinforcing mechanism is placed, after the reinforcing mechanism is placed, the displacement prevention mechanism is installed, after the above steps are completed, a first pouring concrete layer and a second pouring concrete layer are paved, and after the first pouring concrete layer and the second pouring concrete layer are solidified, the service life of the pouring layer can be effectively improved through the reinforcement of the reinforcing mechanism and the reinforcing mechanism, so that the pouring layer is prevented from cracking and settling.

Description

Technical Field

[0001] This invention relates to the field of municipal road and manhole construction technology, specifically a method for integrated molding construction of road anti-settlement manholes using prefabricated steel sleeves. Background Technology

[0002] The construction of manholes in municipal road construction involves multiple stages, including road planning, design, construction, and maintenance. Road construction is a key stage, including earthwork excavation, roadbed treatment, and pavement laying. After completion and commissioning, manholes facilitate the inspection and maintenance of facilities such as cables and drainage pipes under the road surface in designated areas. Through manholes, pipeline faults can be detected and resolved in a timely manner, ensuring the normal operation of municipal facilities and the normal life of citizens.

[0003] However, in existing technologies, manholes in road structures primarily function as access points for pipeline systems rather than supporting the road surface. Therefore, under long-term traffic loads and natural factors, road surfaces may crack and settle. This damage not only affects road smoothness and driving comfort but, more importantly, can trigger a series of chain reactions, severely impacting urban traffic. First, road cracking and settlement directly reduce driving speed, increasing traffic congestion and indirectly increasing urban traffic pressure. Second, road damage can also cause safety issues; uneven surfaces may lead to vehicle loss of control, increasing the risk of traffic accidents. Furthermore, frequent road repairs and maintenance can inconvenience urban traffic and affect citizens' normal travel. Therefore, we propose a prefabricated steel sleeve-assisted integrated molding construction method for road anti-settlement manholes. Summary of the Invention

[0004] The purpose of this invention is to provide a construction method for integrated molding of road anti-settlement inspection wells using shaped steel sleeves. This method addresses the issue of road surface cracking and settlement that may occur under long-term traffic loads and natural factors. Such damage not only affects the smoothness and driving comfort of the road surface, but more importantly, it can trigger a series of chain reactions, severely impacting urban traffic. Firstly, road surface cracking and settlement directly lead to a decrease in driving speed, increasing traffic congestion and indirectly increasing the pressure on urban traffic. Secondly, road surface damage may also cause safety issues; uneven road surfaces may cause vehicles to lose control, increasing the risk of traffic accidents. In addition, frequent road surface repairs and maintenance also cause inconvenience to urban traffic and affect the normal travel of citizens.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a construction method for integrated molding of road anti-settlement inspection wells using shaped steel sleeves, comprising a roadbed, a cushion layer for dispersing load stress laid on the upper end of the roadbed, a base layer for dispersing the vertical force of the generated load laid on the upper end of the cushion layer, a poured layer for pedestrians and vehicles to pass on the upper end of the cushion layer, an anti-displacement mechanism for preventing displacement of the poured layer inside the poured layer, a reinforcement mechanism for supporting the poured layer inside the poured layer, a support mechanism for observing underground cables and supporting the poured layer at the upper end of the poured layer, a manhole mechanism inside the support mechanism, and a reinforcing mechanism for fixing the support mechanism at the upper end of the poured layer.

[0006] Preferably, the support mechanism includes a base, which is fixedly embedded in the lower part of the roadbed. A manhole inner sleeve is fixedly connected to the upper end of the base, and a manhole cover is rotatably connected to the upper end of the manhole inner sleeve. An inner support sleeve is fixedly fitted on the outer side of the manhole inner sleeve. Multiple inner support steel frames are fixedly connected in a ring inside the inner support sleeve. An outer support sleeve is fitted on the outer side of the inner support steel frames. The lower end of the outer support sleeve is fixedly connected to the upper end of the base. Multiple outer support steel frames are fixedly connected in a ring on the outer side of the outer support sleeve. An isolation sleeve is fitted on the outer side of the outer support sleeve, and the lower end of the isolation sleeve is fixedly connected to the upper end of the base.

[0007] Preferably, the manhole mechanism includes multiple arc-shaped bricks arranged in a ring between an inner support sleeve and an outer support sleeve. Two positioning steel rods are fixedly connected to the lower ends of each arc-shaped brick. Two positioning holes are opened at the upper ends of each arc-shaped brick. The positioning holes at the upper ends of the lower arc-shaped bricks are mutually fitted and connected to the positioning steel rods at the lower ends of adjacent upper arc-shaped bricks. A fixing hole is opened at the center of each arc-shaped brick. A misalignment hole is opened at the center of both sides of each arc-shaped brick. Slots are opened at both ends of one side of each arc-shaped brick. Positioning strips are fixedly connected to the center at both ends of the other side of each arc-shaped brick. Two positioning strips are respectively fitted and connected to the two slots on the adjacent side. Multiple I-beams are fitted inside the fixing holes and misalignment holes. The lower ends of the I-beams are fixedly connected to the upper end of the base.

[0008] Preferably, the pouring layer includes a primary pouring concrete layer, which is poured on the upper end of the base layer, and a secondary pouring concrete layer is poured on the upper end of the primary pouring concrete layer.

[0009] Preferably, the anti-displacement mechanism includes multiple force transmission rods and multiple tension rods. The multiple force transmission rods are respectively arranged and fixedly connected to the two sides of the secondary concrete layer away from the support mechanism, and the multiple tension rods are respectively fixedly connected to the two sides of the secondary concrete layer close to the support mechanism. Two expansion joint plates are sleeved on the outer side of the multiple force transmission rods.

[0010] Preferably, the reinforcement mechanism includes multiple connecting seats, which are arranged in a rectangular shape and fixedly connected to the upper part of the primary concrete layer. A steel mesh is fixedly connected to the upper end of the multiple connecting seats, and the steel mesh is fixedly connected to the lower part of the secondary concrete layer.

[0011] Preferably, the reinforcing mechanism includes a positioning concrete block, which is poured on the upper part of the outer side of the isolation sleeve. Fixing rods are fixedly sleeved on both sides of the inside of the positioning concrete block. Multiple connectors are arranged and fixedly connected to one side of each of the two fixing rods, and steel strands are fixedly connected to one end of each of the multiple connectors.

[0012] The construction method for integral molding of road anti-settlement inspection wells using prefabricated steel sleeves includes the following steps:

[0013] S1. During road construction, an excavator is used to excavate and transport gravel and soil to the designated area where the road needs to be paved. After the excavation reaches the designated depth, the base is fixed. After the base is fixed, the inner support sleeve is erected and welded and reinforced to the base.

[0014] S2. After completing the installation and fixing of the inner support sleeve, fix multiple I-beams to the upper end of the base and complete the welding.

[0015] S3. After the I-beams are fixed in place, the manhole structure can be erected.

[0016] S4. After the manhole structure is erected, the outer support sleeve, which has multiple outer support steel frames fixedly connected in a ring on the outside, is placed on the outside of the manhole structure using a lifting device. The bottom end of the outer support sleeve is then fixedly welded to the base. After the installation of the outer support sleeve is completed, the isolation sleeve is placed on the outside of the outer support sleeve again using a lifting device.

[0017] S5. After completing the above steps, use a loader to backfill some of the previously excavated soil to the excavation location. Then, use a dynamic compaction machine and a static roller to compact and level the large area of ​​uneven soil or soft soil foundation, ensuring that the compacted soil adheres tightly to the outside of the isolation sleeve.

[0018] S6. After the roadbed is compacted, the subgrade is laid using paving equipment.

[0019] S7. After the subbase is laid, the base layer is laid by the laying equipment.

[0020] S8. After the subbase has bonded and solidified, the reinforcement mechanism can be constructed. A formwork frame is erected on the outside of the isolation sleeve on the base layer. After the formwork frame is completed, two fixing rods with multiple connectors are placed in, and the connecting ends of the multiple connectors are extended outside the formwork frame. After the above steps, concrete is poured into the formwork frame. During concrete pouring, workers need to use vibration equipment to vibrate the concrete in the formwork frame to remove air bubbles mixed in with the concrete and to fully compact it, so that the concrete in the formwork frame is in full contact with the isolation sleeve. After reaching the specified hardness, the positioning concrete casting block can be formed.

[0021] S9. Once the concrete inside the formwork has solidified, the formwork can be demolded. After demolding, coal is laid on the base layer. One end of each of the multiple connectors is fixedly connected to the steel strands. The coal is ignited, and the steel strands are heated by the coal to cause them to expand and lengthen slightly. At this time, the workers should quickly connect the multiple steel strands to the multiple connectors on the corresponding side to tighten and fix them. Then the coal is removed, and the steel strands will shrink back to a taut state after cooling.

[0022] S10. After the construction of the reinforcement mechanism is completed, the surface layer can be constructed. Before the surface layer is constructed, the debris on the base layer should be cleaned, and a pouring frame should be built in the place where pouring is required, and multiple dowel bars, multiple tension bars and reinforcement mechanisms should be deployed. Taking the end wooden formwork fixing method as an example, the end template, positioning template and bottom fixing template are installed at one end of the pouring area, and two side templates are installed at the same time. Multiple tension bars are inserted into the two side templates, and then the dowel bars are installed. Half of the length of the dowel bars is passed through the end baffle and fixed in the outer positioning template. Before pouring, check the position of the dowel bars and arrange the reinforcement mechanism on the base layer.

[0023] S11. After completing the above steps, the first concrete layer can be poured and compacted using a vibrator. After checking again whether the position of the dowel bar needs to be calibrated, the second concrete layer can be poured and compacted. After it solidifies, the first and second concrete layers on one side can be poured.

[0024] Preferably, in step S3, the steps for constructing the manhole mechanism are as follows: The fixing holes and two staggered holes on the multiple arc-shaped bricks are sequentially fitted onto the upper end of the I-beam, so that the positioning strip of each arc-shaped brick is respectively matched and connected to the two slots of the adjacent arc-shaped bricks on one side. This is done in a circular installation for each layer. The above steps are repeated to stack the arc-shaped bricks of each layer to a specified height. During construction, two steel rods fixedly connected to the lower ends of the multiple arc-shaped bricks arranged in a circular pattern at the upper end are inserted alternately into the positioning holes on the two adjacent arc-shaped bricks at the lower end. Repeating the decoration steps completes the construction of the manhole mechanism.

[0025] Preferably, in step S11, the steps of paving the primary and secondary concrete layers on the adjacent side are as follows: When paving the primary and secondary concrete layers on the adjacent side, first remove the end templates, positioning templates, and bottom fixing templates at both ends, apply an anti-stick coating to the dowel bars, and then fit two expansion joint plates onto the multiple dowel bars at both ends to fix the expansion joint plates. Install force transmission sleeves at one end of the multiple dowel bars, and then pour the primary and secondary concrete layers again and vibrate them to compact them. After the concrete reaches a certain strength, remove the expansion joint plates and fill the joints with sealant. When using asphalt or plastic film sliding sealing layers, the relative displacement of the panels will increase. The width of the expansion joint plates and sealant plates should be widened to the specified thickness. After paving, curing should be carried out immediately, which can be done by spraying curing agents or covering with moisture.

[0026] Compared with the prior art, the beneficial effects of the present invention are:

[0027] In this invention, after the manhole structure and support structure are completed, the reinforcement structure is constructed. After the reinforcement structure is constructed, the reinforcement structure can be placed. After the reinforcement structure is placed, the anti-displacement structure is installed. After the above steps are completed, the primary and secondary concrete layers can be laid. After the primary and secondary concrete layers have cured, the reinforcement structure and reinforcement structure can effectively improve the service life of the concrete layers, thereby avoiding the collapse and settlement of the concrete layers. Attached Figure Description

[0028] Figure 1 A schematic diagram of the overall structure of a fixed steel sleeve auxiliary road anti-settlement inspection well;

[0029] Figure 2 A three-dimensional disassembled structural diagram of a fixed steel sleeve auxiliary road anti-settlement inspection well;

[0030] Figure 3 A three-dimensional structural diagram of a fixed steel sleeve auxiliary road anti-settlement inspection well reinforcement mechanism;

[0031] Figure 4 A schematic diagram of the three-dimensional disassembled structure of the pouring layer for the auxiliary road anti-settlement inspection well using a shaped steel sleeve;

[0032] Figure 5 A three-dimensional disassembled structural diagram of the support mechanism for the road anti-settlement inspection well using a fixed steel sleeve;

[0033] Figure 6 for Figure 5 A magnified schematic diagram of the partial structure at point A in the middle;

[0034] Figure 7 for Figure 5A magnified schematic diagram of the local structure at point B;

[0035] Figure 8 for Figure 5 A magnified schematic diagram of the structure at point C in the middle;

[0036] Figure 9 A three-dimensional structural diagram of the arc-shaped brickwork supporting mechanism for the auxiliary road anti-settlement inspection well with a fixed steel sleeve;

[0037] Figure 10 A three-dimensional structural diagram of a reinforcement mechanism for road anti-settlement inspection wells using a fixed steel sleeve;

[0038] Figure 11 for Figure 10 A magnified schematic diagram of the local structure at point D;

[0039] Figure 12 for Figure 10 A magnified schematic diagram of the structure at point E in the middle.

[0040] In the diagram: 1. Roadbed; 2. Subbase; 3. Base course; 4. Concrete layer; 401. Primary concrete layer; 402. Secondary concrete layer; 5. Anti-displacement mechanism; 501. Dowel bar; 502. Expansion joint plate; 503. Tension bar; 6. Reinforcement mechanism; 601. Connecting seat; 602. Steel mesh; 7. Support mechanism; 701. Manhole inner sleeve; 702. Manhole cover; 703. Inner support sleeve; 704. Inner support steel frame; 70 5. External support sleeve; 706. External support steel frame; 707. Base; 708. Isolation sleeve; 8. Manhole mechanism; 801. Arc-shaped brickwork; 802. Positioning steel bar; 803. Positioning hole; 804. Fixing hole; 805. Slot; 806. Positioning strip; 807. I-beam; 808. Misalignment hole; 9. Reinforcing mechanism; 901. Positioning concrete block; 902. Fixing rod; 903. Connector; 904. Steel strand. Detailed Implementation

[0041] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0042] Please see Figure 1 , Figure 2 and Figure 3This invention provides a technical solution: a construction method for integral molding of road anti-settlement inspection wells using shaped steel sleeves, comprising a roadbed 1, characterized in that: a cushion layer 2 for dispersing load stress is laid on the upper end of the roadbed 1, a base layer 3 for dispersing the vertical force of the generated load is laid on the upper end of the cushion layer 2, a poured layer 4 for pedestrians and vehicles to pass through is laid on the upper end of the cushion layer 2, an anti-displacement mechanism 5 is provided inside the poured layer 4 for preventing displacement of the poured layer 4, a reinforcement mechanism 6 for supporting the poured layer 4 is provided inside the poured layer 4, a support mechanism 7 for observing underground cables and supporting the poured layer 4 is provided on the upper end of the poured layer 4, a manhole mechanism 8 is provided inside the support mechanism 7, and a reinforcing mechanism 9 for fixing the support mechanism 7 is provided on the upper end of the poured layer 4.

[0043] Furthermore, after the manhole structure 8 and the support structure 7 are completed, the reinforcing structure 9 is constructed. After the reinforcing structure 9 is constructed, the reinforcement structure 6 can be placed. After the reinforcement structure 6 is placed, the anti-displacement structure 5 is installed. After the above steps are completed, the primary concrete layer 401 and the secondary concrete layer 402 can be laid. After the primary concrete layer 401 and the secondary concrete layer 402 have cured, the reinforcement structure 6 and the reinforcing structure 9 can effectively improve the service life of the poured layer 3, thereby avoiding the collapse and settlement of the poured layer 3.

[0044] In the preferred embodiment of this technical solution, please refer to Figure 5 , Figure 6 and Figure 7 The support mechanism 7 includes a base 707, which is fixedly embedded in the lower part of the roadbed 1. A manhole inner sleeve 701 is fixedly connected to the upper end of the base 707. A manhole cover 702 is rotatably connected to the upper end of the manhole inner sleeve 701. An inner support sleeve 703 is fixedly fitted on the outside of the manhole inner sleeve 701. Multiple inner support steel frames 704 are fixedly connected in a ring inside the inner support sleeve 703. An outer support sleeve 705 is fitted on the outside of the inner support steel frames 704. The lower end of the outer support sleeve 705 is fixedly connected to the upper end of the base 707. Multiple outer support steel frames 706 are fixedly connected in a ring outside the outer support sleeve 705. An isolation sleeve 708 is fitted on the outside of the outer support sleeve 705. The lower end of the isolation sleeve 708 is fixedly connected to the upper end of the base 707.

[0045] Furthermore, an excavator is used to excavate and transport gravel and soil to the designated area where road paving is required. After excavation to the designated depth, the base 707 is fixed. After the base 707 is fixed, the inner support sleeve 703 is erected and welded and reinforced to the base 707. After the inner support sleeve 703 is installed and fixed, multiple I-beams 807 are fixed to the upper end of the base 707 and welded. After the I-beams 807 are fixed, the manhole mechanism 8 can be erected. After the manhole mechanism 8 is erected, the outer support sleeve 705, which is fixedly connected to multiple outer support steel frames 706 in a ring on the outside, is placed on the outside of the manhole mechanism 8 using a lifting device. The bottom end of the outer support sleeve 705 is fixedly welded to the base 707. After the installation of the outer support sleeve 705 is completed, the isolation sleeve 708 is placed on the outer support sleeve 705 again using a lifting device.

[0046] In the preferred embodiment of this technical solution, please refer to Figure 5 , Figure 8 and Figure 9 The manhole structure 8 includes multiple arc-shaped bricks 801, which are arranged in a ring between an inner support sleeve 703 and an outer support sleeve 705. Two positioning steel rods 802 are fixedly connected to the lower ends of each arc-shaped brick 801, and two positioning holes 803 are opened at the upper ends of each arc-shaped brick 801. The positioning holes 803 at the upper ends of the lower arc-shaped bricks 801 are appropriately matched and connected to the positioning steel rods 802 at the lower ends of the adjacent upper arc-shaped bricks 801. The internal center of the multiple arc-shaped bricks 801... Each of the multiple curved bricks 801 has a fixing hole 804, and each of the multiple curved bricks 801 has a misalignment hole 808 at the center of both sides. Each of the multiple curved bricks 801 has a slot 805 at both ends of one side. Each of the multiple curved bricks 801 has a positioning strip 806 fixedly connected at the center of the other side of the multiple curved bricks 801 at both ends. Each positioning strip 806 is adapted to and connected to the two slots 805 on the adjacent side. Multiple I-beams 807 are fitted inside the multiple fixing holes 804 and the multiple misalignment holes 808. The lower ends of the multiple I-beams 807 are fixedly connected to the upper end of the base 707.

[0047] Furthermore, the fixing holes 804 and the two misalignment holes 808 on the multiple arc-shaped bricks 801 are sequentially fitted onto the upper end of the I-beam 807, so that the positioning strip 806 of a single arc-shaped brick 801 is adapted and connected to the two slots 805 of the arc-shaped brick 801 on the adjacent side, and the ring installation of each layer is carried out. The above steps are repeated to stack the arc-shaped bricks 801 of each layer to the specified height. When the multiple arc-shaped bricks 801 of each layer are assembled, the two steel rods fixedly connected to the lower end of the multiple arc-shaped bricks 801 arranged in a ring at the upper end are inserted alternately into the positioning holes 803 on the two adjacent arc-shaped bricks 801 at the lower end. The manhole mechanism 8 can be completed by repeating the decoration steps.

[0048] In the preferred embodiment of this technical solution, please refer to Figure 4 The reinforcement mechanism 6 includes multiple connecting seats 601, which are arranged in a rectangular shape and fixedly connected to the upper part of the primary concrete layer 401. A steel mesh 602 is fixedly connected to the upper end of the multiple connecting seats 601, and the steel mesh 602 is fixedly connected to the lower part of the secondary concrete layer 402.

[0049] Furthermore, the multiple connecting seats and steel mesh 602 within the cast-in-place layer 4 can effectively reinforce the cast-in-place layer 4, thereby increasing its toughness.

[0050] In the preferred embodiment of this technical solution, please refer to Figure 10 , Figure 11 and Figure 12 The reinforcing mechanism 9 includes a positioning concrete pouring block 901, which is poured on the upper part of the outer side of the isolation sleeve 708. Fixing rods 902 are fixedly installed on both sides of the inside of the positioning concrete pouring block 901. Multiple connectors 903 are arranged and fixedly connected on one side of each of the two fixing rods 902. Steel strands 904 are fixedly connected to one end of each of the multiple connectors 903.

[0051] Further, a formwork frame is erected on the outside of the isolation sleeve 708 on the base layer 3. After the formwork frame is erected, two fixing rods 902 with multiple connectors 903 are inserted, and the connecting ends of the multiple connectors 903 extend outside the formwork frame. After the above steps, concrete is poured into the formwork frame. During concrete pouring, workers need to use a vibrating device to vibrate the concrete in the formwork frame to remove air bubbles mixed in with the concrete and to fully compact it, so that the concrete in the formwork frame is in full contact with the isolation sleeve 708. After reaching the specified hardness, a positioning concrete pouring block 901 is formed. After the concrete in the formwork frame has solidified, it can be demolded. After demolding, coal is laid on the base layer 3. One end of each of the multiple connectors 903 is fixedly connected to a steel strand 904. Coal is ignited, and the steel strand 904 is heated by the coal, causing it to expand and lengthen slightly. At this time, the workers should quickly connect the multiple steel strands 904 to the multiple connectors 903 on the corresponding side to tighten and fix them. Then the coal is removed, and the steel strand 904 will shrink back to a taut state after cooling. After the primary concrete layer 401 and the secondary concrete layer 402 are poured and solidified, the steel strand 904 can further enhance the elasticity of the road surface between the two positioning concrete blocks 901, effectively preventing the road surface from cracking and sinking, thus avoiding unnecessary maintenance expenses.

[0052] In the preferred embodiment of this technical solution, please refer to Figure 3The pouring layer 4 includes a primary pouring concrete layer 401, which is poured on the upper end of the base layer 3, and a secondary pouring concrete layer 402 is poured on the upper end of the primary pouring concrete layer 401.

[0053] Furthermore, by pouring the first concrete layer 401 and the second concrete layer 402 in stages, the first concrete layer 401 and the second concrete layer 402 are fully integrated with the reinforcement mechanism, effectively improving the toughness of the pouring layer 4.

[0054] In the preferred embodiment of this technical solution, please refer to Figure 3 The anti-displacement mechanism 5 includes multiple force transmission rods 501 and multiple tension rods 503. The multiple force transmission rods 501 are respectively arranged and fixedly connected to the two sides of the secondary concrete layer 402 away from the support mechanism 7. The multiple tension rods 503 are respectively fixedly connected to the two sides of the secondary concrete layer 402 close to the support mechanism 7. Two expansion joint plates 502 are sleeved on the outside of the multiple force transmission rods 501.

[0055] Furthermore, before constructing the pouring layer 4, the debris on the base layer 3 should be cleaned, and a pouring frame should be erected at the location where pouring is required, along with multiple dowel bars 501, multiple tension bars 503, and reinforcement mechanisms 6. Taking the end formwork fixing method as an example, end formwork, positioning formwork, and bottom fixing formwork are installed at one end of the pouring area, and two side formworks are installed at the same time. Multiple tension bars 503 are inserted into the two side formworks, and then dowel bars 501 are installed. Half the length of the dowel bars 501 is passed through the end baffle and fixed in the outer positioning formwork. Before pouring, the position of the dowel bars 501 is checked, and the reinforcement mechanisms 6 are arranged and placed on the base layer 3.

[0056] For the construction method of integrated molding of road anti-settlement inspection wells using prefabricated steel sleeves, please refer to [link / reference]. Figure 1-8 This includes the following steps:

[0057] S1. During road construction, an excavator is used to excavate and transport gravel and soil to the designated area where the road needs to be paved. After the excavation reaches the designated depth, the base 707 is fixed. After the base 707 is fixed, the inner support sleeve 703 is erected and welded and reinforced to the base 707.

[0058] S2. After completing the installation and fixing of the inner support sleeve 703, fix multiple I-beams 807 to the upper end of the base 707 and complete the welding.

[0059] S3. After completing the fixing of the I-beam 807, the manhole structure 8 can be erected.

[0060] S4. After the manhole mechanism 8 is assembled, the outer support sleeve 705, which has multiple outer support steel frames 706 fixedly connected in a ring on the outside, is put on the outside of the manhole mechanism 8 using a lifting device. The bottom end of the outer support sleeve 705 is fixedly welded to the base 707. After the installation of the outer support sleeve 705 is completed, the isolation sleeve 708 is put on the outside of the outer support sleeve 705 again using a lifting device.

[0061] S5. After completing the above steps, use a loader to backfill some of the soil from the previous stage to the excavation location, and use a dynamic compaction machine and a static roller to compact and level the large area of ​​uneven soil or soft soil foundation, and make the compacted soil fit tightly against the outside of the isolation sleeve 708, thereby effectively ensuring the flatness of the roadbed 1 and making the isolation sleeve 708 more stable.

[0062] S6. After the compaction of subgrade 1 is completed, the subbase 2 is laid using paving equipment. The subbase 2 uses crushed stone with a diameter of 10mm to 30mm, with approximately 50% of the total being 10mm to 20mm crushed stone and approximately 50% being 20mm to 30mm crushed stone. An appropriate amount of stone powder is added and compacted by vibration to reduce gaps between the crushed stones and ensure thorough adhesion between the crushed stone, stone powder, and the separator 708. Using crushed stone with a diameter range of 10mm to 30mm provides good compaction and stability, aiding in dispersion and... To transfer the load borne by the road, the proportion of 10mm-20mm and 20mm-30mm crushed stone in the aggregate mix should each account for about 50% of the total. This helps to achieve a good gradation effect, which allows the crushed stones to be more tightly interlocked, improving the overall strength and stability of the subbase 2. At the same time, adding 1% to 3% stone powder is also beneficial. Stone powder can fill the gaps between the crushed stones, further improving the compactness and stability of the subbase 2. In addition, stone powder can also form a good bond with cement concrete, enhancing the bonding force between the subbase 2 and the cement concrete layer.

[0063] S7. After the subbase 2 is laid, the base layer 3 is laid by the laying equipment. The base layer 3 is made of cement, crushed stone and sand in a certain proportion. The amount of cement is between 5% and 10%, the amount of crushed stone is between 60% and 80%, and the amount of sand is between 10% and 30%. At the same time, an appropriate amount of water needs to be added for mixing.

[0064] S8. After the subbase 2 has solidified, the reinforcing mechanism 9 can be constructed. A formwork frame is erected on the outside of the isolation sleeve 708 on the base layer 3. After the formwork frame is completed, two fixing rods 902 with multiple connectors 903 are placed in, and the connecting ends of the multiple connectors 903 extend outside the formwork frame. After the above steps, concrete is poured into the formwork frame. During concrete pouring, workers need to use vibration equipment to vibrate the concrete in the formwork frame to remove air bubbles mixed in with the concrete and to fully compact it, so that the concrete in the formwork frame is in full contact with the isolation sleeve 708. After reaching the specified hardness, the positioning concrete casting block 901 can be formed. The material ratio of the concrete in the formwork frame is cement: sand: gravel = 1:2.5:3.5, and the water-cement ratio is 0.4~0.5, that is, the amount of water is 40%~50% of the amount of cement.

[0065] S9. After the concrete in the mold frame has solidified, the mold can be removed. After demolding, coal is laid on the base layer 3. One end of each of the multiple connectors 903 is fixedly connected to the steel strands 904. The coal is lit, and the steel strands 904 are heated by the coal to make them expand and extend slightly. At this time, the workers should quickly connect the multiple steel strands 904 to the multiple connectors 903 on the corresponding side to tighten and fix them. Then the coal is removed. After the steel strands 904 cool and shrink, they will shrink to a tight state. After the primary concrete layer 401 and the secondary concrete layer 402 are poured and solidified, the steel strands 904 can further improve the elasticity of the road surface between the two positioning concrete blocks 901, effectively avoiding the phenomenon of road surface cracking and subsidence, thus avoiding unnecessary maintenance expenses.

[0066] S10. After completing the construction of the reinforcing mechanism 9, construction can proceed on the opposite layer. Before constructing the pouring layer 4, the debris on the base layer 3 should be cleaned, and a pouring frame should be erected at the location where pouring is required, along with multiple dowel bars 501, multiple tension bars 503, and the reinforcing mechanism 6. Taking the end formwork fixing method as an example, end templates, positioning templates, and bottom fixing templates are installed at one end of the pouring area, and two side templates are installed simultaneously. Multiple tension bars 503 are inserted into the two side templates, and then the dowel bars 501 are installed. Half the length of the dowel bars 501 is passed through the end baffle and fixed in the outer positioning template. Before pouring, the position of the dowel bars 501 is checked, and the reinforcing mechanism is installed. The six tension bars 503 are arranged on the base layer 3. All tension bars 503 are made of threaded steel bars, which have high strength and toughness and can effectively withstand tensile forces, preventing cracks or deformations in the cast-in-place layer 4. All force transmission bars 501 are made of plain round steel bars, which have good force transmission performance and can effectively transfer the pressure on the surface layer to the base layer. The tension bars 503 not only improve the structural strength of the cast-in-place layer 4, but also effectively prevent the cast-in-place layer 4 from shifting during long-term use. The force transmission bars 501 transfer the downward pressure on the current cast-in-place layer to the base layer 3 in advance, thereby enhancing the load-bearing capacity of the cast-in-place layer 4.

[0067] S11. After completing the above steps, the first concrete layer 401 can be poured and compacted using a vibrator. After checking again whether the position of the dowel bar needs to be calibrated, the second concrete layer 402 can be poured and compacted. After it solidifies, the first concrete layer 401 and the second concrete layer 402 on one side can be poured. The above construction method is limited to the discontinuous concrete pouring method.

[0068] In the preferred embodiment, step S3, the step of constructing the manhole mechanism 8, is as follows: the fixing holes 804 and the two misaligned holes 808 on the multiple arc-shaped bricks 801 are sequentially fitted onto the upper end of the I-beam 807, so that the positioning strip 806 of a single arc-shaped brick 801 is adapted and connected to the two slots 805 of the arc-shaped brick 801 on the adjacent side, and the ring installation of each layer is carried out. The above steps are repeated to stack the arc-shaped bricks 801 of each layer to a specified height. During the construction of the multiple arc-shaped bricks 801 of each layer, the two steel rods fixedly connected to the lower ends of the multiple arc-shaped bricks 801 arranged in a ring at the upper end are inserted alternately into the positioning holes 803 on the two adjacent arc-shaped bricks 801 at the lower end. The construction of the manhole mechanism 8 can be completed by repeating the decoration steps.

[0069] In the preferred embodiment, the steps for paving the primary concrete layer 401 and the secondary concrete layer 402 on the adjacent side are as follows: When paving the primary concrete layer 401 and the secondary concrete layer 402 on the adjacent side, first remove the end templates, positioning templates and bottom fixing templates at both ends, apply an anti-sticking layer to the dowel bars, and respectively fit two expansion joint plates 502 onto the multiple dowel bars 501 at both ends to fix the expansion joint plates. Install a force transmission sleeve at one end of the multiple dowel bars 501, and then pour the primary concrete layer 401 and the secondary concrete layer 402 again and vibrate them to compact them. After the concrete reaches a certain strength, remove the expansion joint plates and fill the joints with sealant. When using asphalt or plastic film sliding sealing layer, the relative displacement of the panel will increase. The width of the expansion joint plate 502 and the sealant plate should be widened to the specified thickness. After the pouring is completed, curing should be carried out immediately, which can be done by spraying curing agent or covering with moisture.

[0070] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, 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 process, method, article, or apparatus.

[0071] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fixed steel sleeve auxiliary road anti-settlement inspection well, including roadbed (1), characterized in that: The roadbed (1) is covered with a cushion layer (2) for dispersing load stress. The cushion layer (2) is covered with a base layer (3) for dispersing the vertical force of the generated load. The cushion layer (2) is covered with a cast-in-place layer (4) for pedestrians and vehicles to pass through. The cast-in-place layer (4) is equipped with an anti-displacement mechanism (5) to prevent displacement of the cast-in-place layer (4). The cast-in-place layer (4) is equipped with a reinforcement mechanism (6) for supporting the cast-in-place layer (4). The cast-in-place layer (4) is equipped with a support mechanism (7) for observing underground cables and supporting the cast-in-place layer (4). The support mechanism (7) is equipped with a manhole mechanism (8). The cast-in-place layer (4) is equipped with a strengthening mechanism (9) for fixing the support mechanism (7). The support mechanism (7) includes a base (707), which is fixedly buried in the lower part of the roadbed (1). A manhole inner sleeve (701) is fixedly connected to the upper end of the base (707). A manhole cover (702) is rotatably connected to the upper end of the manhole inner sleeve (701). An inner support sleeve (703) is fixedly fitted on the outside of the manhole inner sleeve (701). Multiple inner support steel frames (704) are fixedly connected in a ring inside the inner support sleeve (703). An outer support sleeve (705) is fitted on the outside of the inner support steel frame (704). The lower end of the outer support sleeve (705) is fixedly connected to the upper end of the base (707). Multiple outer support steel frames (706) are fixedly connected in a ring outside the outer support sleeve (705). An isolation sleeve (708) is fitted on the outside of the outer support sleeve (705). The lower end of the isolation sleeve (708) is fixedly connected to the upper end of the base (707). The reinforcing mechanism (9) includes a positioning concrete block (901), which is cast on the upper part of the outer side of the isolation sleeve (708). Fixing rods (902) are fixedly sleeved on both sides of the positioning concrete block (901). Multiple connectors (903) are fixedly connected to one side of each of the two fixing rods (902). A steel strand (904) is fixedly connected to one end of each connector (903). The steel strand (904) is tightened and fixed after heating, and shrinks to a taut state after cooling. After the steel strand (904) is cast and solidified in the pouring layer (4), it enhances the elasticity of the road surface between the two positioning concrete blocks (901).

2. The shaped steel sleeve auxiliary road anti-settlement inspection well according to claim 1, characterized in that: The manhole mechanism (8) includes multiple arc-shaped bricks (801), which are arranged in a ring between an inner support sleeve (703) and an outer support sleeve (705). Two positioning steel rods (802) are fixedly connected to the lower ends of each arc-shaped brick (801), and two positioning holes (803) are opened at the upper ends of each arc-shaped brick (801). The positioning holes (803) at the upper ends of the lower arc-shaped bricks (801) are appropriately matched and connected to the positioning steel rods (802) at the lower ends of the adjacent upper arc-shaped bricks (801). The internal center of each arc-shaped brick (801)... Each of the multiple arc-shaped bricks (801) is provided with a fixing hole (804), and each of the multiple arc-shaped bricks (801) is provided with a misalignment hole (808) at the center of both sides. Each of the multiple arc-shaped bricks (801) is provided with a slot (805) at both ends of one side. Each of the multiple arc-shaped bricks (801) is fixedly connected with a positioning strip (806) at the center of the other side of one side. Each of the two positioning strips (806) is adapted to and connected to the two slots (805) on the adjacent side. Multiple I-beams (807) are fitted inside the multiple fixing holes (804) and multiple misalignment holes (808). The lower ends of the multiple I-beams (807) are fixedly connected to the upper end of the base (707).

3. The shaped steel sleeve auxiliary road anti-settlement inspection well according to claim 2, characterized in that: The pouring layer (4) includes a primary pouring concrete layer (401), which is poured on the upper end of the base layer (3), and a secondary pouring concrete layer (402) is poured on the upper end of the primary pouring concrete layer (401).

4. The shaped steel sleeve auxiliary road anti-settlement inspection well according to claim 3, characterized in that: The anti-displacement mechanism (5) includes multiple force transmission rods (501) and multiple tension rods (503). The multiple force transmission rods (501) are respectively arranged and fixedly connected to the two sides of the secondary concrete layer (402) away from the support mechanism (7). The multiple tension rods (503) are respectively fixedly connected to the two sides of the secondary concrete layer (402) close to the support mechanism (7). Two expansion joint plates (502) are sleeved on the outside of the multiple force transmission rods (501).

5. The shaped steel sleeve auxiliary road anti-settlement inspection well according to claim 4, characterized in that: The reinforcement mechanism (6) includes multiple connecting seats (601), which are arranged in a rectangular shape and fixedly connected to the upper part of the first-cast concrete layer (401). A steel mesh (602) is fixedly connected to the upper end of the multiple connecting seats (601), and the steel mesh (602) is fixedly connected to the lower part of the second-cast concrete layer (402).

6. The construction method for integral molding of prefabricated steel sleeve auxiliary road anti-settlement inspection wells according to any one of claims 4-5, characterized in that, Includes the following steps: S1. During road construction, an excavator is used to excavate and transport gravel and soil to the designated area where the road needs to be paved. After the excavation reaches the designated depth, the base (707) is fixed. After the base (707) is fixed, the inner support sleeve (703) is built and the inner support sleeve (703) is welded and reinforced to the base (707). S2. After completing the installation and fixing of the inner support sleeve (703), fix multiple I-beams (807) to the upper end of the base (707) and complete the welding. S3. After the fixing of the I-beam (807) is completed, the manhole structure (8) can be built. S4. After the manhole mechanism (8) is completed, the outer support sleeve (705) with multiple outer support steel frames (706) fixedly connected in a ring on the outside is put on the outside of the manhole mechanism (8) by using the lifting equipment, and the bottom end of the outer support sleeve (705) is fixedly welded to the base (707). After the installation of the outer support sleeve (705) is completed, the isolation sleeve (708) is put on the outside of the outer support sleeve (705) again by using the lifting equipment. S5. After completing the above steps, the loader will backfill some of the soil from the previous step to the excavation location, and a dynamic compaction machine and a static roller will be used to compact and flatten the large area of ​​uneven soil or soft soil foundation, and make the compacted soil fit tightly against the outside of the isolation sleeve (708). S6. After the roadbed (1) is compacted, the subgrade (2) is laid using the laying equipment. S7. After the subbase (2) is laid, the base layer (3) is laid by the laying equipment. S8. After the subbase (2) has solidified, the reinforcing mechanism (9) can be constructed. A formwork frame is built on the outside of the isolation sleeve (708) on the base layer (3). After the formwork frame is built, two fixing rods (902) with multiple connectors (903) are placed in, and the connecting ends of the multiple connectors (903) are extended to the outside of the formwork frame. After the above steps, concrete is poured into the formwork frame. When pouring concrete, the workers need to use a vibrating device to vibrate the concrete in the formwork frame to remove air bubbles mixed in the concrete in the formwork frame and to fully compact it so that the concrete in the formwork frame is in full contact with the isolation sleeve (708). After the specified hardness is reached, the positioning concrete pouring block (901) can be formed. S9. After the concrete in the mold frame has solidified, the mold can be demolded. After demolding, coal is laid on the base layer (3). One end of each of the multiple connectors (903) is fixedly connected to the steel strand (904). The coal is lit and the steel strand (904) is heated by the coal to make it expand and extend slightly. At this time, the workers quickly connect the multiple steel strands (904) to the multiple connectors (903) on the corresponding side to tighten and fix them. At this time, the coal is removed and the steel strand (904) shrinks and contracts to a tight state after cooling. S10. After completing the construction of the reinforcing mechanism (9), construction can be carried out on the opposite layer. Before the construction of the pouring layer (4), the debris on the base layer (3) should be cleaned, and a pouring frame should be built in the place where pouring is required, and multiple force transmission rods (501), multiple tension rods (503) and reinforcement mechanism (6) should be deployed. The end wooden mold fixing method is adopted. First, the end template, positioning template and bottom fixing template are installed at one end of the pouring area respectively. At the same time, two side molds are installed, and multiple tension rods (503) are inserted into the two side molds. Then, the force transmission rods (501) are installed. Half of the length of the force transmission rods (501) is passed through the end baffle and fixed in the outer positioning template. Before pouring, check the position of the force transmission rods (501) and arrange the reinforcement mechanism (6) on the base layer (3). S11. After completing the above steps, the first concrete layer (401) can be laid and compacted with a vibrator. After checking again whether the position of the dowel bar needs to be calibrated, the second concrete layer (402) can be poured and compacted. After it solidifies, the first concrete layer (401) and the second concrete layer (402) on one side can be poured. After the first concrete layer (401) and the second concrete layer (402) are completed and solidified, the steel strand (904) further enhances the elasticity of the road surface between the two positioning concrete blocks (901).

7. The integrated molding construction method for the prefabricated steel sleeve auxiliary road anti-settlement inspection well according to claim 6, characterized in that, In step S3, the steps for constructing the manhole mechanism (8) are as follows: the fixing holes (804) and two misaligned holes (808) on the multiple arc-shaped bricks (801) are sequentially fitted from the upper end of the I-beam (807), so that the positioning strip (806) of a single arc-shaped brick (801) is adapted and connected to the two slots (805) of the arc-shaped brick (801) on the adjacent side, and the ring installation of each layer is carried out. The above steps are repeated to stack the arc-shaped bricks (801) of each layer to the specified height. When constructing the multiple arc-shaped bricks (801) of each layer, the two steel rods fixedly connected to the lower end of the multiple arc-shaped bricks (801) arranged in a ring at the upper end are inserted into the positioning holes (803) on the two adjacent arc-shaped bricks (801) at the lower end. The construction of the manhole mechanism (8) can be completed by repeating the decoration steps.

8. The integrated molding construction method for the prefabricated steel sleeve auxiliary road anti-settlement inspection well according to claim 6, characterized in that, In step S11, the steps of paving the first-time concrete layer (401) and the second-time concrete layer (402) on the adjacent side are as follows: When paving the first-time concrete layer (401) and the second-time concrete layer (402) on the adjacent side, first remove the end templates, positioning templates and bottom fixing templates at both ends, apply an anti-stick coating to the dowel bars, and put the two expansion joint plates (502) on the multiple dowel bars (501) at both ends respectively, fix the expansion joint plates, and install the dowel sleeves at one end of the multiple dowel bars (501), and then pave the first-time concrete layer (401) and the second-time concrete layer (402) again and vibrate them to make them dense. After the concrete reaches a certain strength, remove the expansion joint plates and fill the joints with filler. When using asphalt or plastic film sliding sealing layer, the relative displacement of the panel will increase. The width of the expansion joint plate (502) and the filler plate should be widened to the specified thickness. After the paving is completed, curing should be carried out immediately by spraying curing agent or covering with moisture.

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