Construction method for reinforcing and upgrading structure of rainwater falling pipeline undisturbed utilization carriageway inspection well

Abstract

The invention relates to a construction method of a reinforcing and upgrading structure of a rainwater falling pipeline undisturbed utilization carriageway inspection well, a rubber pad and a reinforced compaction well lid are adopted to cover the inspection well, and the compaction strength of roadbed soil around the inspection well is improved; heightened cement soil is adopted to reinforce a roadbed and raise a steel fiber concrete shaft structure, the overall strength of the inspection well and surrounding soil is improved, and sedimentation of the inspection well and the surrounding soil is reduced; the upper portion of the inspection well is subjected to backfilling treatment in the roadbed compaction process by adopting an easily-excavated discrete material, and the secondary excavation construction difficulty of the inspection well is improved; the upper part of the inspection well is treated by adopting a prefabricated well seat and a well periphery butt strap structure, so that the influence of roadbed settlement on the inspection well is reduced; the prefabricated well seat mounting bracket is used for mounting the prefabricated well seat, so that the mounting and positioning precision and the construction efficiency of the prefabricated well seat are improved.

Description

Technical Field

[0001] The invention belongs to the field of civil engineering, and in particular relates to a construction method for reinforcing and upgrading the structure of a rainwater pipe by utilizing an original state of a roadway inspection well. Background Art

[0002] As urbanization continues to accelerate, the scale of municipal road construction is getting larger and larger. Inspection wells are a key component of municipal roads, which is conducive to ensuring the normal operation of municipal roads. However, due to factors such as inaccurate backfilling around the wells, the inspection wells are prone to sinking, damage, and cracking, which seriously reduces the comfort and safety of the road.

[0003] Traditional inspection well reinforcement and upgrading construction has the disadvantages of poor inspection well reinforcement effect, low construction efficiency, and poor quality of repair of new and old wellbores. Summary of the invention

[0004] The purpose of the present invention is to overcome the deficiencies in the prior art and to provide a method for constructing a rainwater pipe in its original state by utilizing a roadway inspection well to reinforce and upgrade the structure.

[0005] This rainwater pipe original state using the roadway inspection well reinforcement upgrade structure construction method, including the following steps:

[0006] Step 1: Excavate the original pavement structure layer and demolish the upper structure of the inspection well;

[0007] Step 2: Compact the roadbed around the inspection well and install a reinforced compacted manhole cover on the top of the inspection well;

[0008] Step 3: Heightening the shaft: Install the built-in lifting formwork on the upper part of the inspection shaft, and cast the raised steel fiber concrete shaft;

[0009] Step 4: Raise the top of the steel fiber concrete shaft and adjust the installation position of the prefabricated well seat through the prefabricated well seat installation bracket;

[0010] Step 5: construct asphalt concrete pavement and install manhole cover on the prefabricated manhole seat;

[0011] Step six: Use a spraying device to spray the new and old pipe wall repair layer on the original inspection well body and the inner wall of the raised steel fiber concrete well body.

[0012] Preferably, in step two, an elevated steel fiber concrete shaft is constructed on the original inspection shaft body, and elevated cement soil reinforced roadbed and pavement base are laid in sequence above the original roadbed around the elevated steel fiber concrete shaft and compacted, a rubber pad and a reinforced compacted manhole cover are set on the top of the inspection shaft, and easy-to-excavate loose material is set on the top of the reinforced compacted manhole cover.

[0013] Preferably, in step three, an adjustable inspection well mold is arranged at the lower part of the built-in well lifting mold frame, and an upper fixed beam is arranged at the upper part of the built-in well lifting mold frame. The upper fixed beam adjusts the installation position of the adjustable inspection well mold by fixing bolts, height-adjusting top supports and supporting square wood.

[0014] Preferably, the prefabricated well seat is installed, positioned and adjusted by a prefabricated well seat mounting bracket, an oblique beam and a bottom beam are arranged on the outside of the prefabricated well seat mounting bracket, and a jack pier, a jack, a diffusion steel plate and an arc-shaped rubber pad are arranged above the bottom beam to support and adjust the prefabricated well seat.

[0015] Preferably, in step five, asphalt concrete pavement is constructed, a manhole cover is installed on the top of the prefabricated manhole seat, and a well perimeter scaffold is installed in the asphalt concrete pavement around the prefabricated manhole seat.

[0016] Preferably, in step six, the spraying device is suspended in the original inspection well body and the elevated steel fiber concrete well body through a spray repair bracket, and the new and old pipe wall repair layers are sprayed on the inner walls of the original inspection well body and the elevated steel fiber concrete well body; a main beam, walking wheels, columns and steel casing are arranged on the upper part of the spray repair bracket, and the walking wheels are arranged at the bottom of the columns, supporting the movement on the asphalt concrete pavement on both sides of the inspection well.

[0017] Preferably, the spraying device is connected to the spray repair bracket through the repair liquid connecting pipe and the steel wire rope. The repair liquid connecting pipe and the steel wire rope of the spraying device are passed through the steel casing. An airbag bracket and an airbag are arranged at the lower part of the repair liquid connecting pipe and the steel wire rope. The airbag is supported in the original inspection well body and the raised steel fiber concrete well body to assist in positioning the spraying device.

[0018] The original state of the rainwater pipe is reinforced and upgraded by using the carriageway inspection well, which is obtained by any of the above-mentioned methods.

[0019] The beneficial effects of the present invention are:

[0020] 1) The present invention uses a rubber pad and a reinforced compaction manhole cover to cover the inspection well, thereby improving the compaction strength of the roadbed soil around the inspection well.

[0021] 2) The present invention adopts elevated cement soil to reinforce the roadbed and elevated steel fiber concrete shaft structure to improve the overall strength of the inspection well and the surrounding soil and reduce the settlement of the inspection well and the surrounding soil.

[0022] 3) The present invention uses easily excavated bulk materials to perform backfill treatment on the top of the inspection well during the roadbed compaction process, thereby increasing the difficulty of secondary excavation construction of the inspection well.

[0023] 4) The present invention uses a prefabricated well seat and a well surrounding plate structure to process the upper part of the inspection well, thereby reducing the impact of roadbed settlement on the inspection well.

[0024] 5) The present invention adopts a prefabricated well seat installation bracket to install the prefabricated well seat, thereby improving the installation positioning accuracy and construction efficiency of the prefabricated well seat.

[0025] 6) The present invention adopts a spray repair bracket and an air bag to limit the spray device, thereby improving the spray uniformity and construction quality of the new and old pipe wall repair layers. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is the structural diagram of the rainwater pipe being reinforced and upgraded using the inspection well of the carriageway;

[0027] Figure 2 This is the structural diagram of the inspection well heightening and upgrading;

[0028] Figure 3 This is the structural diagram of the built-in well lifting formwork;

[0029] Figure 4 This is the structural diagram of the prefabricated well seat mounting bracket;

[0030] Figure 5 This is the structural diagram of the inspection well repair.

[0031] Explanation of reference numerals: 1, inspection well; 2, original inspection well body; 3, rubber pad; 4, original roadbed; 5, elevated cement soil reinforced roadbed; 6, road surface base; 7, easy-to-excavate bulk material; 8, reinforced compacted well cover; 9, built-in well raising formwork; 10, upper fixed crossbeam; 11, fixing bolts; 12, height-adjustable top support; 13, supporting square wood; 14, adjustable inspection well mold; 15, elevated steel fiber concrete well shaft; 16, prefabricated well seat; 17, well cover; 18 , the well perimeter plank; 19, asphalt concrete pavement; 20, prefabricated well seat mounting bracket; 21, jack pier; 22, jack; 23, arc-shaped rubber pad; 24, oblique beam; 25, bottom beam; 26, diffusion steel plate; 27, spray repair bracket; 28, steel casing; 29, repair liquid connecting pipe; 30, airbag bracket; 31, spraying device; 32, new and old pipe wall repair layer; 33, airbag; 34, wire rope; 35, walking wheel; 36, column; 37, main beam. DETAILED DESCRIPTION

[0032] The present invention is further described below in conjunction with embodiments. The description of the following embodiments is only used to help understand the present invention. It should be noted that for ordinary persons in the art, without departing from the principle of the present invention, the present invention can also be modified in some ways, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

[0033] Embodiment 1

[0034] As an embodiment, the construction method of the rainwater pipe original state using the comprehensive reinforcement and upgrading structure of the roadway inspection well includes the following steps:

[0035] Step 1: Excavation of the original road surface: Excavate the original road surface structure layer and demolish the upper structure of the inspection well 1.

[0036] Step 2: Roadbed compaction: compact the roadbed around the inspection well 1. During the compaction process of the cement soil reinforced roadbed 5 and the road surface base 6 around the inspection well 1, a rubber pad 3 and a reinforced compaction manhole cover 8 are set on the top of the inspection well 1. The upper part of the reinforced compaction manhole cover 8 is provided with easy-to-excavate bulk material 7 for secondary excavation. Figure 2 shown.

[0037] Step 3: Construction of heightened shaft: Install the built-in shaft raising formwork 9 on the upper part of the inspection shaft 1, and cast the raised steel fiber concrete shaft 15.

[0038] Step 4: Raise the top of the steel fiber concrete shaft 15 and install and position the prefabricated well seat 16 through the prefabricated well seat mounting bracket 20.

[0039] Step 5, road surface construction: construct asphalt concrete road surface 19, install manhole cover 17 on the upper part of prefabricated manhole seat 16, and install well perimeter slab 18 in asphalt concrete road surface 19 around prefabricated manhole seat 16; Figure 1 shown.

[0040] Step six: spray the new and old pipe wall repair layer 32 on the inner wall of the original inspection well body 2 and the raised steel fiber concrete well body 15 through the spraying device 31.

[0041] Embodiment 2

[0042] As another embodiment, this embodiment 2 proposes, based on the embodiment 1, a more specific construction method for the original state of the rainwater pipe using the comprehensive reinforcement and upgrading structure of the roadway inspection well:

[0043] In step three, specifically, the shaft heightening construction: the steel fiber concrete shaft 15 at the upper part of the inspection shaft 1 is elevated using a built-in lifting formwork 9 for template installation, an adjustable inspection shaft mold 14 is arranged at the lower part of the built-in lifting formwork 9, an upper fixed beam 10 is arranged at the upper part of the built-in lifting formwork 9, and the upper fixed beam 10 is used to position and adjust the installation position of the adjustable inspection shaft mold 14 through fixing bolts 11, height adjustment top supports 12, and supporting square wood 13; Figure 3 shown.

[0044] In step four, specifically, the prefabricated well seat is installed: the prefabricated well seat 16 is installed, positioned and adjusted by the prefabricated well seat installation bracket 20, an oblique beam 24 and a bottom beam 25 are arranged on the outside of the prefabricated well seat installation bracket 20, and a jack pier 21, a jack 22, a diffusion steel plate 26 and an arc-shaped rubber pad 23 are arranged above the bottom beam 25 to support and adjust the prefabricated well seat 16; as shown in 4.

[0045] In step six, specifically, the new and old shafts are repaired: the inspection well 1 is repaired and reinforced by spraying the new and old pipe wall repair layer 32 on the original inspection well body 2 and the raised steel fiber concrete shaft 15 through the spray repair bracket 27. The main crossbeam 37, walking wheels 35, columns 36 and steel casing 28 are arranged on the upper part of the spray repair bracket 27. The repair liquid connecting pipe 29 and the steel wire rope 34 of the spray device 31 pass through the steel casing 28 for auxiliary positioning. The airbag bracket 30 and the airbag 33 are arranged at the lower part of the repair liquid connecting pipe 29 and the steel wire rope 34 to assist in positioning the spray device 31. Figure 5 shown.

[0046] It should be noted that the parts in this embodiment that are the same or similar to those in the first embodiment can be referenced to each other and will not be described in detail in this application.

[0047] Embodiment 3

[0048] As another embodiment, this embodiment three proposes, on the basis of embodiments one and two, that the rainwater pipe original state is obtained by this method and is comprehensively reinforced and upgraded by using the inspection well of the driving lane, mainly including the inspection well 1, the original inspection well body 2, the original roadbed 4, the heightened cement soil reinforced roadbed 5, the raised steel fiber concrete well shaft 15, the prefabricated well seat 16, the well cover 17, the well perimeter slab 18, and the asphalt concrete pavement 19. In view of the construction of the comprehensive reinforcement and upgraded structure of the inspection well 1 of the driving lane of the rainwater pipe original state, the raised steel fiber concrete well shaft 15 is constructed on the original inspection well body 2, the surrounding soil of the raised steel fiber concrete well shaft 15 is reinforced by using the heightened cement soil reinforced roadbed 5, the prefabricated well seat 16 is arranged on the upper part of the raised steel fiber concrete well shaft 15, the well cover 17 is installed on the upper part of the prefabricated well seat 16, and the well perimeter slab 18 is installed in the asphalt concrete pavement 19 around the prefabricated well seat 16.

[0049] A rubber pad 3 and a reinforced compacted manhole cover 8 are arranged on the upper part of the inspection well 1, and an easily excavated bulk material 7 is arranged on the upper part of the reinforced compacted manhole cover 8.

[0050] The raised steel fiber concrete shaft 15 at the upper part of the inspection well 1 adopts the built-in lifting formwork 9 for template installation, an adjustable inspection well mold 14 is arranged at the lower part of the built-in lifting formwork 9, and an upper fixed beam 10 is arranged at the upper part of the built-in lifting formwork 9. The upper fixed beam 10 positions and adjusts the installation position of the adjustable inspection well mold 14 by fixing bolts 11, height-adjusting top supports 12, and supporting square timbers 13.

[0051] The prefabricated well seat 16 is installed, positioned and adjusted by a prefabricated well seat mounting bracket 20. An oblique beam 24 and a bottom beam 25 are arranged on the outside of the prefabricated well seat mounting bracket 20. A jack pier 21, a jack 22, a diffusion steel plate 26 and an arc-shaped rubber pad 23 are arranged above the bottom beam 25 to support and adjust the prefabricated well seat 16.

[0052] The inner walls of the original inspection well body 2 and the elevated steel fiber concrete well body 15 are sprayed with a new and old pipe wall repair layer 32. The main crossbeam 37, walking wheels 35, columns 36 and steel casing 28 are arranged on the upper part of the spray repair bracket 27. The repair liquid connecting pipe 29 and the steel wire rope 34 of the spray device 31 pass through the steel casing 28 for auxiliary positioning. The airbag bracket 30 and the airbag 33 are arranged at the lower part of the repair liquid connecting pipe 29 and the steel wire rope 34 to assist in positioning the spray device 31.

[0053] It should be noted that the parts in this embodiment that are the same or similar to those in Embodiments 1 and 2 can be referenced to each other and will not be described in detail in this application.

[0054] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

Claims

1. A construction method for reinforcing and upgrading the structure of a rainwater pipe by using a roadway inspection well in its original state, characterized in that: The following steps are involved: Step 1: Excavate the original pavement structure layer and demolish the upper structure of the inspection well; Step 2: Compact the roadbed around the inspection well and install a reinforced compacted manhole cover on the top of the inspection well; Step 3: Heightening the shaft: Install the built-in lifting formwork on the upper part of the inspection shaft, and cast the raised steel fiber concrete shaft; Step 4: Raise the top of the steel fiber concrete shaft and adjust the installation position of the prefabricated well seat through the prefabricated well seat installation bracket; Step 5: construct asphalt concrete pavement and install manhole cover on the prefabricated manhole seat; Step six: Use a spraying device to spray the new and old pipe wall repair layer on the original inspection well body and the inner wall of the raised steel fiber concrete well.

2. The construction method for reinforcing and upgrading the structure of the rainwater pipe by utilizing the original state of the roadway inspection well according to claim 1 is characterized in that: In step two, a raised steel fiber concrete shaft is constructed on the original inspection shaft body, and raised cement soil reinforced roadbed and pavement base are laid in sequence above the original roadbed around the raised steel fiber concrete shaft and compacted. A rubber pad and a reinforced compacted manhole cover are set on the top of the inspection shaft, and easy-to-excavate loose materials are set on the top of the reinforced compacted manhole cover.

3. The construction method for reinforcing and upgrading the structure of the rainwater pipe by utilizing the original state of the roadway inspection well according to claim 1 is characterized in that: In step three, an adjustable inspection well mold is set at the lower part of the built-in well lifting mold frame, and an upper fixed beam is set at the upper part of the built-in well lifting mold frame. The upper fixed beam adjusts the installation position of the adjustable inspection well mold by fixing bolts, height-adjusting top supports and supporting square wood.

4. The construction method for reinforcing and upgrading the structure of the rainwater pipe by utilizing the original state of the roadway inspection well according to claim 1 is characterized in that: The prefabricated well seat is installed, positioned and adjusted by means of a prefabricated well seat mounting bracket. An oblique beam and a bottom beam are arranged on the outside of the prefabricated well seat mounting bracket. A jack pier, a jack, a diffusion steel plate and an arc-shaped rubber pad are arranged above the bottom beam to support and adjust the prefabricated well seat.

5. The construction method for reinforcing and upgrading the structure of the rainwater pipe by utilizing the original state of the roadway inspection well according to claim 1 is characterized in that: In step five, asphalt concrete pavement is constructed, a manhole cover is installed on the upper part of the prefabricated manhole seat, and a well perimeter slab is installed in the asphalt concrete pavement around the prefabricated manhole seat.

6. The construction method for reinforcing and upgrading the structure of the rainwater pipe by using the original state of the roadway inspection well according to claim 1 is characterized in that: In step six, the spraying device is suspended in the original inspection well body and the elevated steel fiber concrete well body through the spray repair bracket, and the new and old pipe wall repair layers are sprayed on the inner walls of the original inspection well body and the elevated steel fiber concrete well body; the main beam, walking wheels, columns and steel casing are arranged on the upper part of the spray repair bracket, and the walking wheels are arranged at the bottom of the columns, supporting the movement on the asphalt concrete pavement on both sides of the inspection well.

7. The construction method of the rainwater pipe original state using the roadway inspection well reinforcement and upgrading structure according to claim 6 is characterized in that: The spraying device is connected to the spray repair bracket through the repair liquid connecting pipe and the steel wire rope. The repair liquid connecting pipe and the steel wire rope of the spraying device are passed through the steel casing. An airbag bracket and an airbag are arranged at the lower part of the repair liquid connecting pipe and the steel wire rope. The airbag is supported in the original inspection well body and the raised steel fiber concrete well body to assist in positioning the spraying device.

8. The rainwater pipe is reinforced and upgraded by using the inspection well of the roadway, which is characterized by: Obtained by the method according to any one of claims 1 to 7.

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