Operating well construction formwork for parking apron road and construction method of operating well construction formwork

Abstract

The invention provides an operation well construction formwork for a parking apron road and a construction method of the operation well construction formwork, and belongs to the technical field of road construction.The construction method of the operation well for the parking apron road comprises the following steps that S10, all pipeline operation wells in the operation range are lowered to the bottom elevation of a to-be-constructed cement stable layer, and a steel plate is used for covering and protecting a well opening; paving and compacting the two water stable layers; s20, after the cement-stabilized layer is formed, the corresponding cement-stabilized layer part above the wellhead is cut and removed, the construction position is exposed, and then shaft heightening construction is conducted; s30, after the shaft is heightened, a steel plate is used for covering and protecting a well mouth, and an asphalt lower surface layer and other design isolation layers of the road are sequentially laid; and S40, after the asphalt lower surface layer and other design isolation layers are integrally formed, the asphalt lower surface layer and other design isolation layers above the well mouth are cut and removed, the construction position is exposed, and then shaft heightening construction is conducted to the elevation of the operation well. The bearing capacity of the pavement is improved.

Description

Technical Field

[0001] This invention belongs to the technical field of road construction, specifically relating to a construction template for a working well on a helipad road and its construction method. Background Technology

[0002] The roads between the airport apron and the terminal building are critical infrastructure for ensuring aircraft taxiing and the passage of various ground service vehicles and heavy freight vehicles. These roads are characterized by high loads, high frequency, and stringent flatness requirements, and their pavement structure must have extremely high integrity and uniform load-bearing capacity.

[0003] Beneath such roads are typically densely packed various pipelines, including power, communication, drainage, and fire protection lines, necessitating the installation of numerous pipeline access manholes (hereinafter referred to as "access manholes") within the road structure. Traditional road and access manhole construction methods are mostly sequential: first, the manhole body is constructed or installed to the design elevation, and then the water-stabilized layer, asphalt layer, etc., of the road are laid and compacted in layers around the access manhole.

[0004] It can be seen that most existing technologies adopt the construction sequence of well first and then road. However, this construction sequence will cause the main structure layer of the road surface to be unable to be constructed continuously as a whole, which will lead to defects such as material discontinuity, uneven thickness, and inconsistent compaction, and ultimately make it difficult to form a high-strength and complete foundation bearing slab. Summary of the Invention

[0005] This invention provides a construction template and construction method for working wells on apron roads, aiming to solve the technical problem that the road surface bearing capacity is reduced due to the construction sequence of wells first and then roads second.

[0006] In a first aspect, embodiments of the present invention provide a method for constructing a working well for a helipad road, comprising the following steps:

[0007] S10. First, before paving the water-stabilized layer of the apron road, lower all pipeline manholes within the work area to the bottom elevation of the water-stabilized layer to be constructed, and use steel plates to temporarily cover and protect the manholes. Then, continuously and integrally pave and compact the two layers of water-stabilized layer to form a complete and uniform road base structure.

[0008] S20. After the cement-stabilized crushed stone layer is formed as a whole, cut and remove the corresponding water-stabilized layer above the wellhead to expose the construction position, and then carry out the wellbore heightening construction.

[0009] S30. After the well shaft is processed to the target height, use steel plates to temporarily cover and protect the well opening again, and then lay the asphalt base layer and other designed isolation layers of the road in sequence.

[0010] S40. After the asphalt base layer and other designed isolation layers are formed as a whole, cut and remove the corresponding asphalt base layer and other designed isolation layers above the wellhead to expose the construction position. Then carry out wellbore heightening construction to the working well elevation.

[0011] The construction method for manholes on apron roads provided by this invention, compared with existing technologies, revolutionizes the traditional "manhole first, road later" construction sequence by pioneering a method of "laying the road as a whole first, then drilling and adding manholes in stages." Its core benefit lies in ensuring that the cement-stabilized crushed stone layer (water-stabilized layer), which serves as the main load-bearing layer of the road, and subsequent asphalt subbase layers, can be laid and compacted without interruption. This fundamentally eliminates the defects of traditional processes, such as discontinuous material paving and difficulty in uniform compaction due to the pre-existing manholes. The final result is a complete, uniform, and high-strength road foundation bearing slab, perfectly meeting the stringent requirements of airport apron roads for integrity, flatness, and ultra-high load-bearing capacity, thus improving the long-term durability and safety of the road from the root of the construction process.

[0012] Secondly, embodiments of the present invention also provide a construction template for a working well on an apron road, comprising:

[0013] The outer contour unit includes a base, a top seat, and an intermediate seat disposed between the base and the top seat. The base has a bottom cavity for the intermediate seat to slide, and a bottom receiving groove is formed at the top of the inner wall of the bottom cavity. The intermediate seat has an intermediate cavity for the top seat to slide, and an intermediate receiving groove is formed at the top of the inner wall of the intermediate cavity. The intermediate seat also has a first air passage communicating with the bottom cavity, and the top seat has a second air passage communicating with the intermediate cavity. The inner rings of the base, the intermediate seat, and the top seat form the working area of ​​the wellbore.

[0014] The locking unit includes a first locking structure disposed in the bottom storage slot and a second locking structure disposed in the middle storage slot. The first locking structure includes a bottom locking plate slidably disposed in the bottom storage slot and a bottom elastic member fixed between the bottom locking plate and the base. The bottom elastic member has a pre-tightening force that causes the bottom locking plate to extend out of the bottom storage slot. The second locking structure has the same structure as the first locking structure.

[0015] The inner profile unit includes an inner template located in the working area and a lifting structure located on the top seat. The lifting structure is used to drive the inner template to move upward.

[0016] In conjunction with the second aspect, in one possible implementation, the top seat has a top cavity that communicates with the outside.

[0017] The construction template for the working well of the apron road also includes a mixing unit;

[0018] The stirring unit includes:

[0019] A bottom rod is rotatably connected to the inner bottom wall of the bottom cavity, and the bottom rod has the vertical direction as its rotation axis;

[0020] An intermediate rod is rotatably connected to the inner bottom wall of the intermediate cavity. The intermediate rod has a rotation axis in the vertical direction. A first receiving groove for accommodating the bottom rod is formed inside the intermediate rod. The intermediate rod and the bottom rod are detachably connected. The outer wall of the intermediate rod is also provided with multiple stirring blades.

[0021] A top rod is provided in the top cavity, and a second receiving groove is provided in the top rod to accommodate the intermediate rod.

[0022] In conjunction with the second aspect, in one possible implementation, the inner wall of the top rod is provided with a spiral groove, and the top of the intermediate rod is fixedly connected with a transmission block that is slidably adapted to the spiral groove;

[0023] The push rod is slidably disposed in the top cavity, and the push rod slides in the up-down direction.

[0024] In conjunction with the second aspect, in one possible implementation, the inner wall of the top rod is provided with a straight groove communicating with the spiral groove, and the straight groove extends in the vertical direction.

[0025] In conjunction with the second aspect, in one possible implementation, the intermediate rod has an adjustment groove corresponding to each of the stirring blades, a guide post is fixed to the inner wall of the adjustment groove, the guide post extends in the vertical direction, the stirring blade has an adjustment port for the guide post to pass through, and the stirring blade extends into the first receiving groove.

[0026] The top wall of the top rod has a through hole that connects the outside world and the second receiving groove.

[0027] In conjunction with the second aspect, in one possible implementation, the outer diameter of the cement-stabilized crushed stone layer cut off in S20 is equal to the outer diameter of the intermediate seat;

[0028] The outer diameter of the asphalt sublayer and other designed isolation layers cut off in S40 is equal to the outer diameter of the top seat.

[0029] In conjunction with the second aspect, in one possible implementation, the outer diameter of the inner template is smaller than the inner diameter of the base.

[0030] In conjunction with the second aspect, in one possible implementation, the bottom of the inner template is provided with multiple grooves, and an electric suction cup is provided in the grooves.

[0031] In conjunction with the second aspect, in one possible implementation, the top seat is detachably connected to a mounting base, and the lifting structure is disposed on the mounting base.

[0032] The construction template for manholes on apron roads provided by this invention, compared with existing technologies, allows for the sequential stacking and lifting of outer units (base, intermediate seat, and top seat), perfectly matching the construction requirements of S20 and S40 staged manhole heightening, eliminating the need to customize templates of different sizes for each stage. The locking unit design ensures that the intermediate seat and top seat can be locked after lifting, guaranteeing the stability of the template structure during heightening construction. The height of the inner template can be changed through the lifting structure, and a reinforcing cage can be added between the outer and inner units, and cement grout can be injected to form the manhole wall. This template system achieves efficient and precise coordination with the "road first, manhole later" process, making the "window opening" and "heightening" operations on the integrally formed road layer standardized and operable, significantly improving construction efficiency and accuracy. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the construction template for the working well of the apron road according to an embodiment of the present invention;

[0034] Figure 2 This is a partial cross-sectional view of an embodiment of the present invention, illustrating the outer contour unit, the positioning unit, and the inner contour unit;

[0035] Figure 3 for Figure 2 A magnified view of part A in the middle;

[0036] Figure 4 This is a partial cross-sectional view illustrating the stirring unit in an embodiment of the present invention;

[0037] Figure 5 for Figure 4 A magnified view of part B in the diagram.

[0038] Explanation of reference numerals in the attached figures:

[0039] 10. Outer frame unit; 101. Base; 1011. Bottom cavity; 1012. Bottom storage slot; 102. Top seat; 1021. Top cavity; 1022. Mounting seat; 103. Middle seat; 1031. Middle cavity;

[0040] 20. Positioning unit; 201. Bottom positioning plate; 202. Bottom elastic element;

[0041] 30. Inner contour unit; 301. Inner template; 3011. Groove; 3012. Electric suction cup; 302. Lifting structure;

[0042] 40. Work area;

[0043] 50. Stirring unit; 501. Bottom rod; 502. Intermediate rod; 5021. First receiving groove; 5022. Stirring blade; 5023. Transmission block; 5024. Adjustment port; 5025. Guide post; 503. Top rod; 5031. Second receiving groove; 5032. Spiral groove; 5033. Straight groove; 5034. Through hole. Detailed Implementation

[0044] To make the technical problems to be solved, the technical solutions, and the beneficial effects of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0045] This invention describes a method for constructing manholes for helipad roads. The method comprises the following steps: S10. Before laying the water-stabilized layer for the helipad road, all pipeline manholes within the work area are lowered to the bottom elevation of the water-stabilized layer to be constructed, and the manhole openings are temporarily covered and protected with steel plates. Then, two layers of water-stabilized layer are continuously and integrally laid and compacted to form a complete and uniform road base structure. S20. After the cement-stabilized crushed stone layer is integrally formed, the corresponding portion of the water-stabilized layer above the manhole opening is cut and removed to expose the construction location. Then, the manhole is heightened. S30. After the manhole is processed to the target height, the manhole opening is again temporarily covered and protected with steel plates. Then, the asphalt base layer and other designed isolation layers are laid sequentially. S40. After the asphalt base layer and other designed isolation layers are integrally formed, the corresponding asphalt base layer and other designed isolation layers above the manhole opening are cut and removed to expose the construction location. Then, the manhole is heightened to the manhole elevation.

[0046] The construction method for manholes on apron roads provided in this embodiment, compared with existing technologies, ensures unprecedented continuity and uniformity in material distribution, thickness control, and compaction density of the core load-bearing system of the apron road by first continuously and integrally paving and compacting the cement-stabilized crushed stone layer and subsequent asphalt subbase layer. This forms a complete, high-strength, and uniformly stressed foundation slab, fundamentally eliminating the inherent defects of traditional methods such as paving interruptions and uneven compaction caused by the pre-existing manhole. This method not only perfectly meets the stringent requirements of airport roads for overall rigidity, extreme smoothness, and ultra-high load-bearing capacity, significantly improving the long-term service performance and durability of the road under heavy and high-frequency loads, but also achieves minimal intervention in the existing road structure through its phased opening and manhole heightening process, ensuring the compactness and integrity of the road surface structure around the final manhole. It is an innovative solution that simultaneously considers the ultimate quality of the road and the function of pipeline maintenance.

[0047] Please refer to the following: Figures 1 to 5 Based on the same inventive concept, this application also provides a construction template for a working well on a helipad, including an outer contour unit 10, a positioning unit 20, and an inner contour unit 30. The outer contour unit 10 includes a base 101, a top seat 102, and an intermediate seat 103 disposed between the base 101 and the top seat 102. The base 101 has a bottom cavity 1011 for sliding of the intermediate seat 103, and a bottom receiving groove 1012 is formed at the top of the inner wall of the bottom cavity 1011. The intermediate seat 103 has an intermediate cavity 1031 for sliding of the top seat 102, and an intermediate receiving groove is formed at the top of the inner wall of the intermediate cavity 1031. The intermediate seat 103 also has a first air passage communicating with the bottom cavity 1011 and communicating with the outside. The top seat 102 has a second air passage communicating with the intermediate cavity 1031 and communicating with the outside. 101, the inner rings of the intermediate seat 103 and the top seat 102 form the working area 40 of the wellbore; the positioning unit 20 includes a first positioning structure provided in the bottom receiving groove 1012 and a second positioning structure provided in the intermediate receiving groove. The first positioning structure includes a bottom positioning plate 201 slidably disposed in the bottom receiving groove 1012 and a bottom elastic member 202 fixed between the bottom positioning plate 201 and the base 101. The bottom elastic member 202 has a pre-tightening force that causes the bottom positioning plate 201 to extend out of the bottom receiving groove 1012. The bottom elastic member 202 is a spring or a spring rod; the inner contour unit 30 includes an inner template 301 provided in the working area 40 and a lifting structure 302 provided in the top seat 102. The lifting structure 302 is used to drive the inner template 301 to move upward. The lifting structure 302 is prior art and will not be described in detail in this application.

[0048] Specifically, the outer diameter of the inner template 301 is smaller than the inner diameter of the base 101.

[0049] It should be noted that the second card slot structure is the same as the second card slot structure, and will not be described again in this application.

[0050] In this embodiment, after step S20 is completed, an external air source is connected to the first air duct, and air is injected into the bottom cavity 1011 through the first air duct, thereby pushing the intermediate seat 103 out of the bottom cavity 1011 until the intermediate seat 103 is moved to the target position. At this time, the bottom elastic member 202 releases its elasticity and pushes the bottom locking plate 201 out of the bottom receiving groove 1012. Thus, the bottom locking plate 201 supports the intermediate seat 103 and locks the intermediate seat 103 at the target height. Then, the staff removes the air source, and the first air duct is connected to the outside, thereby restoring the bottom cavity 1011 to atmospheric pressure. Finally, the staff injects cement slurry into the bottom cavity 1011 through the first air duct until the bottom cavity 1011 is completely filled, thereby completing the first stage of outer mold contour construction.

[0051] After the first-level outer formwork outline construction is completed, the inner formwork 301 is lowered to the bottom of the work area 40 by the hoisting structure 302, and then the inner formwork 301 is fixed. A steel cage is installed between the inner wall of the base 101 and the inner formwork 301. Finally, cement grout is poured between the inner wall of the base 101 and the inner formwork 301, thus completing the first-level inner formwork outline construction.

[0052] Continue with the construction of the inner and outer mold contours for the second and third levels based on the above information.

[0053] Compared with existing technologies, a dynamically expandable modular structural system achieves synergy and support with the "first overall paving, then step-by-step drilling and manhole addition" process. Specifically, the outer contour unit 10 of the template adopts a nested telescopic design consisting of a base 101, an intermediate seat 103, and a top seat 102, which can be lifted and locked sequentially. This adapts to the construction requirements of "opening windows" and raising manholes in two stages for the water-stabilized layer and the asphalt sublayer, making the local repair construction on the already formed road structure standardized and controllable.

[0054] The locking unit 20, through its elastically driven locking plate structure, can lock after each segment is lifted, ensuring the overall stability and verticality of the formwork during the heightening construction and providing a solid foundation for high-quality pouring. Simultaneously, the inner contour unit 30, in conjunction with the independent lifting structure 302, enables flexible positioning and installation of the wellbore inner formwork. The entire formwork system transforms the complex and unconventional underground heightening operation into a series of repeatable and predictable standardized operations, greatly improving construction accuracy and efficiency.

[0055] In some embodiments, see Figure 2 and Figure 4 The top seat 102 has a top cavity 1021 that communicates with the outside; the construction template for the working well of the apron road also includes a mixing unit 50.

[0056] The stirring unit 50 includes a bottom rod 501, an intermediate rod 502, and a top rod 503. The bottom rod 501 is rotatably connected to the inner bottom wall of the bottom cavity 1011, and the bottom rod 501 has a rotation axis in the vertical direction. The intermediate rod 502 is rotatably connected to the inner bottom wall of the intermediate cavity 1031, and the intermediate rod 502 has a rotation axis in the vertical direction. A first receiving groove 5021 for accommodating the bottom rod 501 is provided in the intermediate rod 502. The intermediate rod 502 and the bottom rod 501 are detachably connected. The outer wall of the intermediate rod 502 is also provided with a plurality of stirring blades 5022. The top rod 503 is located in the top cavity 1021, and a second receiving groove 5031 for accommodating the intermediate rod 502 is provided in the top rod 503.

[0057] Optionally, the intermediate rod 502 and the bottom rod 501 can be detachably connected by magnetic attraction or vacuum negative pressure adsorption. This is existing technology and will not be described in detail in this application.

[0058] When the intermediate seat 103 slides out of the bottom cavity 1011, the intermediate seat 103 and the top seat 102 move upward synchronously. The top seat 102 drives the top rod 503 to move upward. At this time, the intermediate rod 502 and the bottom rod 501 are fixed, causing the top rod 503 to detach from the intermediate rod 502, while the intermediate rod 502 is still sleeved on the bottom rod 501, thereby exposing the mixing blade 5022. Then, the operator can rotate the top rod 503 to drive the intermediate rod 502 and the bottom rod 501 to rotate synchronously. During the rotation of the intermediate rod 502, the mixing blade 5022 stirs the cement slurry in the bottom cavity 1011, thereby evenly distributing the cement slurry in the bottom cavity 1011.

[0059] When the top seat 102 slides out of the intermediate cavity 1031, it drives the top rod 503 to move upward. At this time, the intermediate rod 502 and the bottom rod 501 are released from their fixed positions, allowing the intermediate rod 502 to detach from the bottom rod 501, thus accommodating the relative movement between the top seat 102 and the intermediate seat 103. Similarly, the operator can rotate the fixed rod to drive the intermediate rod 502 to rotate. During the rotation of the intermediate rod 502, the cement slurry in the intermediate cavity 1031 is agitated by the stirring blades 5022, thereby evenly distributing the cement slurry in the intermediate cavity 1031.

[0060] In some embodiments, see Figure 4 The inner wall of the top rod 503 is provided with a spiral groove 5032, and the top of the intermediate rod 502 is fixedly connected with a transmission block 5023 that is slidably adapted to the spiral groove 5032; the top rod 503 is slidably disposed in the top cavity 1021, and the top rod 503 slides in the up and down direction.

[0061] It should be noted that after the top rod 503 moves upward to the target height, the intermediate rod 502 still has a certain length that is inserted into the second receiving groove 5031.

[0062] When injecting cement grout, the workers use tools to drive the top rod 503 to reciprocate in the up and down direction. The reciprocating motion of the top rod 503 is converted into the rotational motion of the intermediate rod 502 through the spiral groove 5032 and the transmission block 5023. Thus, the intermediate part completes the mixing of cement grout through the mixing blade 5022, allowing the operator to complete the mixing of cement grout in a relatively labor-saving and ergonomic way.

[0063] In some embodiments, see Figure 4 The inner wall of the top rod 503 is provided with a straight groove 5033 that communicates with the spiral groove 5032, and the straight groove 5033 extends in the vertical direction.

[0064] If the straight groove 5033 is not provided, the second receiving groove 5031 needs to be designed to be wider at the top and narrower at the bottom, and the spiral groove 5032 needs to be located in the narrower part. However, at the junction of the wide and narrow grooves, the transmission block 5023 cannot be precisely aligned with the spiral groove 5032. This application uses the method of providing a straight groove 5033 to reserve space for the movement of the transmission block 5023. At the junction of the straight groove 5033 and the spiral groove 5032, the transmission block 5023 can accurately complete the transition from the straight groove 5033 to the spiral groove 5032.

[0065] In some embodiments, see Figure 4 and Figure 5 The intermediate rod 502 has an adjustment groove corresponding to the stirring blade 5022. A guide post 5025 is fixed to the inner wall of the adjustment groove. The guide post 5025 extends in the vertical direction. The stirring blade 5022 has an adjustment port 5024 for the guide post 5025 to pass through. The stirring blade 5022 extends into the first receiving groove 5021.

[0066] The top wall of the top rod 503 has a through hole 5034 that connects to the outside and the second receiving groove 5031.

[0067] It should be noted that the adjustment port 5024 and the guide post 5025 are fitted with a clearance.

[0068] Before the cement slurry is poured, the workers open the through hole 5034 and insert a long rod into the through hole 5034. The long rod is inserted into the first receiving groove 5021 through the through hole 5034. During the process of inserting the long rod into the first receiving groove 5021, the long rod squeezes the mixing blade 5022, causing the mixing blade 5022 to change from downward tilt to upward tilt, thereby opening the mixing blade 5022. The widened mixing area further improves the uniform distribution of cement slurry.

[0069] In some embodiments, the outer diameter of the water-stabilized layer cut off in S20 is equal to the outer diameter of the intermediate seat 103; the outer diameter of the asphalt lower layer and other designed isolation layers cut off in S40 is equal to the outer diameter of the top seat 102.

[0070] This ensures that each "window" created by cutting can perfectly accommodate the corresponding template components, avoiding unnecessary damage to the existing road structure caused by excessive excavation, and guaranteeing the stability and sealing of the template installation. This enables the two key links of "window opening" and "formwork support" to achieve standardized and modular integration, greatly improving construction accuracy and appearance quality.

[0071] In some embodiments, see Figure 3 The bottom of the inner template 301 is provided with multiple grooves 3011, and an electric suction cup 3012 is provided in the grooves 3011.

[0072] During the construction of the second and third level inner formwork contours, after the inner formwork 301 is lowered to the predetermined elevation, the electric suction cup 3012 can be activated to firmly attach it to the inner wall of the existing well shaft (usually a concrete or masonry structure, i.e., the part formed by pouring cement grout through a steel cage).

[0073] This provides a stable and reliable bottom anchor point for the entire inner formwork 301 system, which can effectively resist the lateral pressure and buoyancy generated during concrete pouring, prevent the inner formwork 301 from floating or shifting, thereby ensuring the accurate inner diameter of the newly poured well shaft and the smooth and vertical inner wall, greatly improving the molding quality.

[0074] In some embodiments, see Figure 1 The top seat 102 is detachably connected to the mounting base 1022, and the lifting structure 302 is located on the mounting base 1022.

[0075] Optionally, the mounting base 1022 and the top seat 102 can be quickly installed and removed using a bolt structure.

[0076] 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 within the protection scope of the present invention.

Claims

1. A method for constructing a working well for a helipad road, characterized in that, The steps are as follows: S10. First, before paving the water-stabilized layer of the apron road, lower all pipeline manholes within the work area to the bottom elevation of the water-stabilized layer to be constructed, and use steel plates to temporarily cover and protect the manholes. Then, continuously and integrally pave and compact the two layers of water-stabilized layer to form a complete and uniform road base structure. S20. After the cement-stabilized crushed stone layer is formed as a whole, cut and remove the corresponding water-stabilized layer above the wellhead to expose the construction position, and then carry out the wellbore heightening construction. S30. After the well shaft is processed to the target height, use steel plates to temporarily cover and protect the well opening again, and then lay the asphalt base layer and other designed isolation layers of the road in sequence. S40. After the asphalt base layer and other designed isolation layers are formed as a whole, cut and remove the corresponding asphalt base layer and other designed isolation layers above the wellhead to expose the construction position. Then carry out wellbore heightening construction to the working well elevation.

2. A construction template for a working manhole on a helipad road, applicable to the construction method for a working manhole on a helipad road as described in claim 1, characterized in that, include: The outer contour unit includes a base, a top seat, and an intermediate seat disposed between the base and the top seat. The base has a bottom cavity for the intermediate seat to slide, and a bottom receiving groove is formed at the top of the inner wall of the bottom cavity. The intermediate seat has an intermediate cavity for the top seat to slide, and an intermediate receiving groove is formed at the top of the inner wall of the intermediate cavity. The intermediate seat also has a first air passage communicating with the bottom cavity, and the top seat has a second air passage communicating with the intermediate cavity. The inner rings of the base, the intermediate seat, and the top seat form the working area of ​​the wellbore. The locking unit includes a first locking structure disposed in the bottom storage slot and a second locking structure disposed in the middle storage slot. The first locking structure includes a bottom locking plate slidably disposed in the bottom storage slot and a bottom elastic member fixed between the bottom locking plate and the base. The bottom elastic member has a pre-tightening force that causes the bottom locking plate to extend out of the bottom storage slot. The second locking structure is the same as the second locking structure. as well as The inner profile unit includes an inner template located in the working area and a lifting structure located on the top seat. The lifting structure is used to drive the inner template to move upward.

3. The construction template for the working well of the apron road as described in claim 2, characterized in that, The top seat has a top cavity that communicates with the outside. The construction template for the working well of the apron road also includes a mixing unit; The stirring unit includes: A bottom rod is rotatably connected to the inner bottom wall of the bottom cavity, and the bottom rod has the vertical direction as its rotation axis; An intermediate rod is rotatably connected to the inner bottom wall of the intermediate cavity. The intermediate rod has a rotation axis in the vertical direction. A first receiving groove for accommodating the bottom rod is formed inside the intermediate rod. The intermediate rod and the bottom rod are detachably connected. The outer wall of the intermediate rod is also provided with multiple stirring blades. A top rod is provided in the top cavity, and a second receiving groove is provided in the top rod to accommodate the intermediate rod.

4. The construction template for the working well of the apron road as described in claim 3, characterized in that, The inner wall of the top rod is provided with a spiral groove, and the top of the intermediate rod is fixedly connected with a transmission block that is slidably adapted to the spiral groove. The push rod is slidably disposed in the top cavity, and the push rod slides in the up-down direction.

5. The construction template for the working well of the apron road as described in claim 4, characterized in that, The inner wall of the top rod is provided with a straight groove that communicates with the spiral groove, and the straight groove extends in the vertical direction.

6. The construction template for the working well of the apron road as described in claim 3, characterized in that, The intermediate rod has an adjustment groove corresponding to each of the stirring blades. A guide post is fixed to the inner wall of the adjustment groove. The guide post extends in the vertical direction. The stirring blade has an adjustment port for the guide post to pass through. The stirring blade extends into the first receiving groove. The top wall of the top rod has a through hole that connects the outside world and the second receiving groove.

7. The construction template for the working well of the apron road as described in claim 2, characterized in that, The outer diameter of the cement-stabilized crushed stone layer cut off in S20 is equal to the outer diameter of the intermediate seat. The outer diameter of the asphalt sublayer and other designed isolation layers cut off in S40 is equal to the outer diameter of the top seat.

8. The construction template for the working well of the apron road as described in claim 2, characterized in that, The outer diameter of the inner template is smaller than the inner diameter of the base.

9. The construction template for the working well of the apron road as described in claim 8, characterized in that, The bottom of the inner template has multiple grooves, and an electric suction cup is installed in each groove.

10. The construction template for the working well of the apron road as described in claim 2, characterized in that, The top seat is detachably connected to a mounting base, and the lifting structure is located on the mounting base.

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