CN113235661A

CN113235661A - Inspection well structure and installation process thereof

Info

Publication number: CN113235661A
Application number: CN202110570504.7A
Authority: CN
Inventors: 马斌学; 陈永莲
Original assignee: Suzhou Hongyi Municipal Engineering Co ltd
Current assignee: Suzhou Hongyi Municipal Engineering Co ltd
Priority date: 2021-05-25
Filing date: 2021-05-25
Publication date: 2021-08-10
Anticipated expiration: 2041-05-25
Also published as: CN113235661B

Abstract

The invention discloses an inspection well structure and an installation process thereof, relates to a water supply and drainage technology, and aims to solve the problems that when a pipeline and an inspection well are installed in a well pit and a groove, the pipeline and the inspection well are difficult to keep coaxial arrangement and are easy to deviate, the pipeline and the inspection well are uneven in stress, the inspection well inclines when being vertically placed, and the whole inspection well structure is cracked and leaked finally: including seting up well hole and the slot that just communicates each other on earth ground, the holding tank that runs through its top surface is seted up to the lateral wall of well hole and slot, and the steel pipe that has a plurality of one ends to wear out the earth ground is pre-buried on the interior bottom surface of holding tank and the lateral wall of slot, and the length that the earth ground was worn out to the steel pipe is less than the groove depth of holding tank, fixedly connected with reinforcing bar net between a plurality of steel pipes. The invention can ensure that the inspection well is stably installed and is not easy to be damaged due to uneven stress position deviation.

Description

Inspection well structure and installation process thereof

Technical Field

The invention relates to a water supply and drainage technology, in particular to an inspection well structure and an installation process thereof.

Background

The inspection well is used for maintaining power supply, water drainage, pollution discharge, communication, cable television, gas pipes, street lamp lines and the like of urban underground infrastructure, and is convenient to install. It is usually installed at the intersection of pipelines, turning, where the pipe diameter or slope changes, and at certain intervals on straight pipeline sections, and is convenient for regular inspection of the attached structures.

When present inspection shaft needs to be installed, need dig out well pit and slot earlier subaerial, when the groundwater appears in the excavation process, just take away the water in well pit and slot, then will install the inspection shaft in the well pit, then lay the pipeline in the slot, and the pipeline needs to set up with the axle center, then accomplish the connection to both, and seal the processing, carry out the work of filling a pit after that, after ramming, lay installation polymer bearing ring behind the mattress layer, installation well lid.

However, in the current normal installation process, the place limited by excavation is earth, the pipeline and the inspection well are difficult to keep coaxial arrangement when being installed in a pit and a groove, the pipeline and the inspection well are prone to shifting, the pipelines are stressed unevenly, the pipelines and the inspection well are stressed unevenly, the inspection well is inclined when being vertically placed, and the whole inspection well structure is finally broken and leaked.

Therefore, a new solution is needed to solve this problem.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide an inspection well structure and an installation process thereof, which can ensure that the inspection well is stably installed and is not easy to be damaged due to uneven stress position deviation.

The technical purpose of the invention is realized by the following technical scheme: an inspection well structure comprises a well pit and a groove which are arranged on earth and are communicated with each other, wherein a holding tank penetrating through the top surface of the well pit and the groove is arranged on the side wall of the well pit and the groove, a plurality of steel pipes with one ends penetrating the earth are pre-embedded on the inner bottom surface of the holding tank and the side wall of the groove, the length of the steel pipes penetrating the earth is smaller than the depth of the holding tank, a plurality of steel bar nets are fixedly connected between the steel pipes, a concrete layer covering the steel pipes is filled in the holding tank and on the side wall of the groove, the vertical surface of the concrete layer is vertical to the inner bottom surface of the groove and is flush with the earth layer, a base layer is laid on the inner bottom surfaces of the groove and the well pit, a base layer is laid above the base layer, a pipeline positioned in the groove and an inspection well body positioned in the well pit are arranged on a leveling layer, the inspection well body is communicated with the pipeline, and a first leveling layer is filled in the groove and the well pit, the well cover is characterized in that the first backfill layer is flush with the top surface of the soil ground, the second backfill layer located on the outer side of the inspection well body is laid on the top surfaces of the soil ground, the first backfill layer and the concrete layer, a mattress layer is laid above the second backfill layer, a polymer bearing ring is fixedly connected onto the mattress layer, and a well cover is detachably connected into the polymer bearing ring.

The invention is further configured to: the leveling layer is provided with a plurality of holes penetrating through the leveling layer, and the base layer is internally provided with a water seepage pipe of which the upper end is communicated with the holes and the lower end penetrates through the base layer to the earth ground.

Through adopting above-mentioned technical scheme, through setting up hole and infiltration pipe to when the condition of revealing takes place for the pipeline, water can flow to in the infiltration pipe through the hole, and water can permeate to earth through the infiltration pipe.

The invention is further configured to: a plurality of limiting blocks located on two sides of the pipeline are laid on the inner bottom surface of the groove and are tangent to the outer peripheral wall of the pipeline.

Through adopting above-mentioned technical scheme, through setting up the stopper to make when the pipeline is laying, can restrict the pipeline, help its coaxial setting.

The invention is further configured to: and a concrete coating is coated on the inner peripheral wall of the inspection well body.

Through adopting above-mentioned technical scheme, through setting up the concrete coating to make the interior perisporium of the inspection shaft body have better protection waterproof performance, be difficult to take place the condition of revealing.

The invention also provides an installation process of the inspection well structure, which comprises the following steps: simultaneously, excavating the well pit and the groove to form a well pit and groove structure in a shape like a Chinese character 'jing', and arranging accommodating grooves communicated with the well pit and the groove on the top surfaces of the well pit and the groove; step two: pumping a submersible pump downwards into the middle positions of the well pit and each groove to pump underground water; step three: tamping the groove and the well pit by a soil compactor; step four: a plurality of steel pipes distributed in an array are driven into the side walls of the groove, the well pit and the bottom surface of the accommodating groove, the submerging depth of each steel pipe is 300-450mm, the exposed length of each steel pipe is smaller than the groove depth of the accommodating groove, the steel bar net is fixed through the exposed steel pipes, and the steel bar net is attached to the side walls of the groove, the well pit and the bottom surface of the accommodating groove; step five: pouring concrete into the accommodating groove and on the side walls of the well pit and the groove, leveling, wherein the thickness of the concrete is equal to the groove depth of the accommodating groove, and placing the concrete statically; step six: pumping water seepage pipes into the ground from the inner bottom surfaces of the well pits and the grooves; step seven: laying a base layer on the inner bottom surfaces of the pit and the groove, then laying a leveling layer, and arranging a plurality of holes for penetrating the leveling layer; step eight: laying pipelines in the groove, and coaxially communicating and arranging a plurality of pipelines; step nine: laying an inspection well body in the well pit, and communicating the inspection well with the pipeline; step ten: checking and accepting pipelines and inspection well bodies in the well pits and the grooves; step eleven: carrying out artificial backfilling and tamping by a tamping machine on the groove and the well pit; step twelve: the concrete is stirred by a stirrer, the rotating spray head is sent into the inspection well body through the centering device, the inner peripheral wall of the inspection well body is uniformly sprayed with the concrete through the rotating spray head, and then the inspection well body is static; step thirteen: a high polymer pressure bearing ring is arranged after the mattress layer is laid; fourteen steps: and (5) installing the well cover to finish the process.

The invention is further configured to: and fifteen steps are included between the ninth step and the tenth step, and the pipeline and the inspection well body are weighted.

Through adopting above-mentioned technical scheme, through setting up the counter weight to make pipeline and inspection shaft body can place the condition of being difficult to take place the displacement in slot and pit.

The invention is further configured to: the central device includes that a plurality of centre of a circle set up and the radius from inside to outside with the connecting pipe of this increase, adjacent connecting pipe sliding connection, it is adjacent the top surface of connecting pipe passes through the hasp subassembly can dismantle the connection, and the radius is minimum inner circle fixedly connected with spacing collar in the connecting pipe, fixedly connected with round touch ring on rotatory nozzle's the periphery wall, touch ring's external diameter is greater than the internal diameter of spacing collar, rotatory nozzle's radius less than or equal to the internal diameter of spacing collar.

Through adopting above-mentioned technical scheme, through setting up to the heart device to make when people need make rotatory nozzle carry out the spraying concrete coating to the internal perisporium of the inspection shaft body, can make rotatory nozzle effectively support, the condition that can not take place the skew, make rotatory nozzle can carry out even spraying to the concrete coating.

The invention is further configured to: the outer peripheral wall of the connecting pipe is fixedly connected with two limiting rings flush with the top surface and the bottom surface of the connecting pipe respectively, a sliding groove is formed between the two limiting rings, and the inner ring of the connecting pipe is fixedly connected with a sliding ring which is connected in the sliding groove in a sliding mode.

The invention is further configured to: the hasp subassembly includes mountain-climbing buckle and go-between of rotation connection on the connecting pipe top surface, and is adjacent the connecting pipe passes through mountain-climbing buckle and can dismantle with the go-between and be connected.

In conclusion, the invention has the following beneficial effects:

this inspection shaft structure can have better structural strength in the work progress to can carry out stable laying to pipeline and inspection shaft body, make both be difficult to take place the unsafe condition in position when laying, avoid then because the atress is inhomogeneous when both bury underground damaged.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the mattress, backfill layer one and backfill layer two of the present invention after they are hidden;

FIG. 3 is an enlarged view taken at A in FIG. 2;

FIG. 4 is a schematic view of the hidden mattress layer, the backfill layer I, the backfill layer II, the inspection well body and the pipeline according to the present invention;

FIG. 5 is an enlarged view at B in FIG. 4;

FIG. 6 is a schematic view showing the construction of the muddy land, steel pipes, reinforcing mats and water seepage pipes according to the present invention;

FIG. 7 is an enlarged view at C of FIG. 6;

FIG. 8 is a schematic structural view of a centering device according to the present invention;

fig. 9 is a cross-sectional view of a centering device in accordance with the present invention.

In the figure: 1. a mattress layer; 2. a high molecular pressure bearing ring; 3. a well cover; 4. a backfill layer II; 5. a first backfill layer; 6. a concrete layer; 7. leveling layer; 8. a base layer; 9. mud land; 10. a pipeline; 11. inspecting the well body; 12. a hole; 13. a water seepage pipe; 14. accommodating grooves; 15. a steel pipe; 16. a reinforcing mesh; 17. a well pit; 18. a trench; 19. a connecting pipe; 20. a limiting ring; 21. a limiting ring; 22. and a slip ring.

Detailed Description

The invention is described in detail below with reference to the figures and examples.

Example (b):

an inspection well structure comprises a well pit 17 and a trench 18 which are opened on a muddy ground 9 and are communicated with each other.

As shown in fig. 6 and 7, the side wall of the pit 17 and the groove 18 is provided with an accommodating groove 14 penetrating through the top surface thereof, a plurality of steel pipes 15 with one ends penetrating through the soil 9 are pre-embedded on the inner bottom surface of the accommodating groove 14 and the side wall of the groove 18, the length of the steel pipes 15 penetrating through the soil 9 is smaller than the depth of the accommodating groove 14, a steel mesh 16 is fixedly connected between the steel pipes 15, the accommodating groove 14 and the side wall of the groove 18 are filled with a concrete layer 6 covering the steel pipes 15, the vertical surface of the concrete layer 6 is perpendicular to the inner bottom surface of the groove 18, and the top surface thereof is flush with the soil layer.

As shown in fig. 4 and 5, a base layer 8 is laid on the inner bottom surfaces of the grooves 18 and the pit 17, the base layer 8 is made of fine stone concrete, a leveling layer 7 is laid above the base layer 8, the leveling layer 7 is made of cement mortar, a plurality of holes 12 penetrating through the leveling layer 7 are formed in the leveling layer 7, and a water seepage pipe 13 is arranged in the base layer 8, the upper end of the water seepage pipe is communicated with the holes 12, and the lower end of the water seepage pipe penetrates through the base layer 8 to the soil ground 9.

As shown in fig. 2 and 3, be provided with the inspection shaft body 11 that is located the pipeline 10 of slot 18 and is located pit 17 on the screed-coat 7, the coating has the concrete coating on the internal perisporium of inspection shaft body 11, inspection shaft body 11 and pipeline 10 intercommunication, a plurality of stopper that are located the pipeline 10 both sides have been laid to the interior bottom surface of slot 18, the stopper is tangent with the periphery wall of pipeline 10, the stopper is the fragment of brick, the edge of fragment of brick and the contact of the periphery wall of pipeline 10.

As shown in fig. 1, the groove 18 and the pit 17 are filled with a backfill layer one 5, the backfill layer one 5 is flush with the top surface of the earth ground 9, the top surfaces of the earth ground 9, the backfill layer one 5 and the concrete layer 6 are paved with a backfill layer two 4 positioned outside the inspection well body 11, the backfill layer one 5 and the backfill layer two 4 are both earth, a mattress layer 1 is paved above the backfill layer two 4, the mattress layer 1 is a gravel pile, a polymer bearing ring 2 is fixedly connected to the mattress layer 1, and a well lid 3 is detachably connected to the polymer bearing ring 2.

An inspection well structure installation process comprises the following steps: simultaneously, excavating the well 17 and the groove 18 to form a well 17-groove 18 structure, and arranging accommodating grooves 14 communicated with the well 17 and the groove 18 on the top surfaces of the well 17 and the groove 18; step two: a submersible pump is driven downwards to the middle position of the pit 17 and each groove 18 for pumping underground water; step three: tamping the groove 18 and the well 17 by a soil compactor; step four: a plurality of steel pipes 15 distributed in an array are driven into the side walls of the groove 18 and the pit 17 and the bottom surface of the accommodating groove 14, the lower ends of the steel pipes 15 are in a sharp-pointed shape, the submerging depth of the steel pipes 15 is 300-450mm, the exposed length of the steel pipes 15 is smaller than the groove depth of the accommodating groove 14, the steel bar mesh 16 is fixed through the exposed steel pipes 15, and the steel bar mesh 16 is attached to the side walls of the groove 18 and the pit 17 and the bottom surface of the accommodating groove 14; step five: pouring concrete into the accommodating groove 14 and on the side walls of the pit 17 and the groove 18, leveling, wherein the thickness of the concrete is equal to the groove depth of the accommodating groove 14, and standing; step six: pumping a water seepage pipe 13 into the ground from the inner bottom surfaces of the pit 17 and the groove 18; step seven: laying a base layer 8 on the inner bottom surfaces of the pit 17 and the groove 18, then laying a leveling layer 7, and arranging a plurality of holes 12 penetrating the leveling layer 7; step eight: laying the pipelines 10 in the trench 18, and coaxially communicating the pipelines 10; step nine: laying an inspection well body 11 in the well pit 17, and communicating the inspection well with the pipeline 10; step fifteen, carrying out weight balancing on the pipeline 10 and the inspection well body 11, and wrapping sand bags on the outer sides of the pipeline 10 and the inspection well body 11; step ten: the pipeline 10 and the inspection well body 11 in the pit 17 and the groove 18 are checked; step eleven: carrying out artificial backfilling and tamping by a tamping machine on the groove 18 and the well pit 17; step twelve: the mixer is removed to mix the concrete, the rotating nozzle is sent into the inspection well body 11 through the centering device, the inner peripheral wall of the inspection well body 11 is uniformly sprayed with the concrete through the rotating nozzle, and then the inspection well body is static; step thirteen: after the mattress layer 1 is laid, a macromolecule pressure-bearing ring 2 is installed; fourteen steps: and (5) installing the well cover 3 to finish.

As shown in fig. 8 and 9, the centering device includes a plurality of connecting pipes 19 arranged at the center of a circle and having a radius increasing from inside to outside, adjacent connecting pipes 19 are slidably connected, two limit rings 20 flush with the top surface and the bottom surface of the connecting pipes 19 are fixedly connected to the outer peripheral wall of the connecting pipes 19, respectively, a sliding slot is formed between the two limit rings 20, a sliding ring 22 slidably connected to the inner ring of the connecting pipe 19 is fixedly connected to the inner ring of the connecting pipe 19, the top surfaces of the adjacent connecting pipes 19 are detachably connected through a buckle assembly, the buckle assembly includes a climbing buckle rotatably connected to the top surface of the connecting pipe 19 and a connecting ring, the adjacent connecting pipes 19, and the inner circle fixedly connected with spacing collar 21 in connecting pipe 19 that the radius is minimum, fixedly connected with round conflict ring on the periphery wall of rotatory nozzle, conflict ring's external diameter is greater than the internal diameter of spacing collar 21, and rotatory nozzle's radius is less than or equal to the internal diameter of spacing collar 21.

When people need to build the inspection well structure, people can dig the trench 18 and the pit 17 on the earth ground 9 through an excavator, once underground water appears in the trench 18 and the pit 17, a technician can drive the submersible pump into the pit 17 and the middle position of each trench 18 to continuously pump water, and the pumped water can be used for stirring concrete.

Then after the underground water is pumped away, people wait for the mud land 9 to be dried, then the trench 18 and the well pit 17 are tamped by a tamping machine, then people dig out the accommodating groove 14 on the top surfaces of the well pit 17 and the trench 18 by a pickaxe and a shovel manually, and people squeeze the steel pipe 15 into the trench 18 and the side wall of the well pit 17 and the bottom surface of the accommodating groove 14 by a manual mode, the submerging depth of the steel pipe 15 is 300-450mm, the exposed length of the steel pipe 15 is smaller than the groove depth of the accommodating groove 14, people fix the reinforcing mesh 16 by the exposed part of the steel pipe 15, and the reinforcing mesh 16 is attached to the trench 18 and the side wall of the well pit 17 and the bottom surface of the accommodating groove 14.

Next, the concrete is stirred by a mixer, the concrete is poured into the housing groove 14 and the side wall of the groove 18 to form the concrete layer 6, the steel pipe 15 is shielded, and both the vertical surface and the horizontal surface of the concrete layer 6 are smoothed by a scraper in an artificial manner, and the concrete is left to stand for solidification.

After the concrete layer 6 is solidified, people pour fine stone concrete on the inner bottom surfaces of the pit 17 and the groove 18 to serve as a base layer 8, then dig the base layer 8 and drive the water seepage pipe 13 into the earth 9, finally lay cement mortar on the base layer 8 to serve as a leveling layer 7, level by using a vibrating leveling ruler or a concrete trowel, and simultaneously dig a hole 12 communicated with the water seepage pipe 13 at the position of the water seepage pipe, stand for a period of time and solidify the water seepage pipe.

After that, people just can set up inspection shaft body 11 and pipeline 10 on the interior bottom surface of slot 18 and well pit 17 to accomplish the connection to both, pipeline 10 is when laying simultaneously, can place the fragment of brick on the interior bottom surface of slot 18 and restrict the condition that pipeline 10 takes place to roll, then people again wrap up the sand bag on pipeline 10 and carry out the counter weight, after carrying out the preliminary examination and checking, people fill earth as backfill layer one 5 into well pit 17 and slot 18 again, the top surface of backfill layer one 5 is flush with the top surface of earth ground 9, then people tamp through the rammer.

Then people continue to fill soil upwards to serve as a backfill layer II 4, the backfill layer II 4 is located on the outer side of the inspection well body 11, then the tamping is carried out through a soil compactor, then gravel piles are thrown into the backfill layer II to serve as a mattress layer 1, and a high-molecular bearing ring 2 is installed at the well mouth of the inspection well body 11.

Then people put the centering device in the macromolecule pressure bearing ring 2, then people communicate the rotating nozzle with the mixer through a hose, the outer side of the rotating nozzle is fixedly connected with a circle of abutting ring, the hose is bound with the lifting end of the rolling crane, the uniform falling of the rotary spray head is kept through the winding crane, the rotary spray head enters the connecting pipe 19 with the minimum radius of the centering device, the abutting ring is abutted against the limiting ring 21, the spraying end of the rotary spray head penetrates through the connecting pipe 19 to the inspection well body 11, when the rotary spray head needs to fall, people open the climbing buckle and the connecting ring in a manual mode, so that the connecting pipe 19 can gradually fall from inside to outside, the rotary spray head has better supporting effect and limiting effect, avoids the shaking condition in the inspection well body 11, and keeps the thickness of the sprayed concrete in the inspection well body 11 uniform.

After finishing spraying the concrete on the inner peripheral wall of the inspection well body 11, people wait for a period of time and then cover the well lid 3 on the macromolecule pressure bearing ring 2 in a manual mode.

The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.

Claims

1. An inspection well structure, characterized in that: including opening well pit (17) and slot (18) on muddy ground (9) and intercommunication each other, holding tank (14) that runs through its top surface is seted up to the lateral wall of well pit (17) and slot (18), pre-buried on the interior bottom surface of holding tank (14) and the lateral wall of slot (18) have steel pipe (15) that a plurality of one end wore out muddy ground (9), the length that muddy ground (9) were worn out to steel pipe (15) is less than the groove depth of holding tank (14), and is a plurality of fixedly connected with reinforcing bar net (16) between steel pipe (15), and fill concrete layer (6) that cover steel pipe (15) in holding tank (14) and on the lateral wall of slot (18), the interior bottom surface setting of vertical face perpendicular slot (18) of concrete layer (6), and its top surface and muddy soil layer level, base layer (8) have been laid to the interior bottom surface of slot (18) and well pit (17), leveling blanket (7) have been laid to the top of basic unit (8), be provided with pipeline (10) that are located slot (18) on leveling blanket (7) and be located inspection shaft body (11) in well hole (17), inspection shaft body (11) and pipeline (10) intercommunication, slot (18) and well hole (17) intussuseption are filled with backfill layer (5), backfill layer (5) flush with soil (9) top surface, fill layer (5) and concrete layer's (6) top surface are laid and are located backfill layer two (4) in the inspection shaft body (11) outside, the top of backfill layer two (4) is laid and is equipped with bed course (1), fixedly connected with polymer cushion ring (2) on bed course (1), can dismantle in polymer cushion ring (2) and be connected with well lid (3).

2. An inspection well structure according to claim 1, wherein: the leveling layer (7) is provided with a plurality of holes (12) penetrating through the leveling layer, and the base layer (8) is internally provided with a water seepage pipe (13) of which the upper end is communicated with the holes (12) and the lower end penetrates through the base layer (8) to the muddy soil (9).

3. An inspection well structure according to claim 1, wherein: a plurality of limiting blocks located on two sides of the pipeline (10) are paved on the inner bottom surface of the groove (18), and the limiting blocks are tangent to the outer peripheral wall of the pipeline (10).

4. An inspection well structure according to claim 2, wherein: the inner peripheral wall of the inspection well body (11) is coated with a concrete coating.

5. An installation process of an inspection well structure as claimed in claim 4, wherein: the method comprises the following steps: simultaneously excavating a well pit (17) and a groove (18) to form a well-shaped well pit (17) and groove (18) structure, and arranging accommodating grooves (14) communicated with the well pit (17) and the groove (18) on the top surfaces of the well pit (17) and the groove; step two: a submersible pump is driven downwards to the middle positions of the pit (17) and each groove (18) for pumping underground water; step three: tamping the trench (18) and the well pit (17) by a soil compactor; step four: a plurality of steel pipes (15) distributed in an array are driven into the side walls of the groove (18) and the pit (17) and the bottom surface of the accommodating groove (14), the submerging depth of the steel pipes (15) is 300-450mm, the exposed length of the steel pipes (15) is smaller than the groove depth of the accommodating groove (14), the reinforcing mesh (16) is fixed through the exposed steel pipes (15), and the reinforcing mesh (16) is attached to the side walls of the groove (18) and the pit (17) and the bottom surface of the accommodating groove (14); step five: pouring concrete into the accommodating groove (14) and on the side walls of the pit (17) and the groove (18), leveling, wherein the thickness of the concrete is equal to the depth of the accommodating groove (14), and placing the concrete in a static state; step six: a water seepage pipe (13) is driven into the inner bottom surfaces of the well pit (17) and the groove (18) to the ground; step seven: laying a base layer (8) on the inner bottom surfaces of the pit (17) and the groove (18), then laying a leveling layer (7), and arranging a plurality of holes (12) penetrating the leveling layer (7) through; step eight: laying pipelines (10) in the grooves (18), and coaxially communicating a plurality of pipelines (10); step nine: laying an inspection well body (11) in the well pit (17), and communicating the inspection well with the pipeline (10); step ten: checking and accepting the pipeline (10) and the inspection well body (11) in the well pit (17) and the groove (18); step eleven: carrying out artificial backfilling and tamping by a tamping machine on the groove (18) and the well pit (17); step twelve: the mixer is removed to mix the concrete, the rotating nozzle is sent into the inspection well body (11) through the centering device, the inner peripheral wall of the inspection well body (11) is uniformly sprayed with the concrete through the rotating nozzle, and then the inspection well body is static; step thirteen: after a mattress layer (1) is laid, a polymer pressure bearing ring (2) is installed; fourteen steps: and (5) installing the well cover (3) to finish the process.

6. An installation process of an inspection well structure according to claim 5, wherein: fifteen steps are included between the ninth step and the tenth step, and the pipeline (10) and the inspection well body (11) are weighted.

7. An installation process of an inspection well structure according to claim 5, wherein: the heart device includes that a plurality of centre of a circle set up and the radius is from inside to outside with this increased connecting pipe (19), adjacent connecting pipe (19) sliding connection, adjacent the top surface of connecting pipe (19) passes through the hasp subassembly and can dismantle the connection, and the radius is minimum inner circle fixedly connected with spacing collar (21) in connecting pipe (19), fixedly connected with round is to touching the ring on rotatory nozzle's the periphery wall, the external diameter that touches the ring is greater than the internal diameter of spacing collar (21), rotatory nozzle's radius less than or equal to the internal diameter of spacing collar (21).

8. An installation process of an inspection well structure according to claim 7, wherein: the outer peripheral wall of the connecting pipe (19) is fixedly connected with two limit rings (20) which are flush with the top surface and the bottom surface of the connecting pipe respectively, a sliding groove is formed between the two limit rings (20), and the inner ring of the connecting pipe (19) is fixedly connected with a sliding ring (22) which is connected in the sliding groove in a sliding mode.

9. An installation process of an inspection well structure according to claim 8, wherein: the hasp assembly comprises a climbing buckle and a connecting ring, wherein the climbing buckle is rotatably connected to the top surface of the connecting pipe (19), and the connecting pipe (19) is detachably connected with the connecting ring through the climbing buckle.