CN217399730U - Manhole with reinforced well wall and integral well cover - Google Patents

Abstract

The utility model relates to an inspection and repair well with a reinforced well wall and an integral well lid, which comprises a reinforced well wall structure and an integral well lid structure; the reinforced well wall structure comprises a well wall and a tie bar arranged inside the well wall; the integral well lid structure comprises a well lid guard ring arranged at the top of the well wall, a well wall top guard pier and a well lid. The construction method of the manhole is divided into three working conditions: the construction of the well wall-well lid structure is in the working condition of the road structure before stagnation; the road structure construction is in the working condition of a well wall-well lid structure before stagnation; the existing well wall-well lid structure is updated and reconstructed. The utility model discloses the wall of a well-well-cover structure becomes an organic whole with surrounding roadbed pavement structure, and the use of lacing wire has strengthened the wholeness, has not only improved the compressive shear strength of the soil body on every side, makes its "self-supporting" ability strengthen, also plays the lacing effect to the wall of a well; the integral well lid structure comprises the well lid protective ring at the top of the well wall, the well wall top protective pier and the well lid, and protects the top of the well wall.

Description

Manhole with reinforced well wall and integral well cover

Technical Field

The utility model relates to a municipal administration public works field especially relates to an inspection shaft with add muscle type wall of a well and integral well lid.

Background

Currently, there are many underground pipe network manhole shafts in urban roads, such as water supply pipes, drainage pipes, fire fighting pipes, power pipes, gas pipes, etc. According to survey statistics, the well wall-well lid structure of a considerable part of the inspection wells has the following engineering problems: (1) the pavement around the overhaul well subsides, and the elevation of the well wall-well cover structure is relatively large to form a convex shape; (2) pavement materials with the width of about 20cm around the well cover are damaged and are accompanied by pressure shear cracks; (3) the well wall structure is inwardly converged and deformed, particularly the top part of the well wall is damaged, so that the whole well wall-well cover structure cannot be normally used; (4) the well lid is bent and deformed, even cracks, blocks and the like are generated; in addition, the vehicle can cause problems such as load vibration and noise pollution when passing.

The phenomenon influences the smoothness, comfort and safety of urban roads, causes potential safety hazards and adverse effects on the trip and life of citizens, and also aggravates the damage of a well wall-well lid structure, belonging to vicious circle. Therefore, there is a need to analyze the causes of these problems and to provide a scientific and reasonable solution, especially to optimize and improve the current shaft wall-well lid structure properly in terms of design, construction, etc.

Disclosure of Invention

The utility model aims at solving the defects of the prior art, and provides an inspection well with a reinforced well wall and an integral well lid.

The reason why the above engineering problems are generated is analyzed as follows: (1) the well wall-well lid structure and the road structure are independent of each other, the materials are different, the strength and the rigidity of the well wall-well lid structure and the road structure are different, and the adhesive force of contact surfaces is insufficient, so that uneven settlement can be generated under the action of load; (2) the well cover is made of cast iron or concrete and is a prefabricated component, the surrounding pavement is made of cast-in-place concrete, asphalt concrete or cement mortar, and the building processes of the well cover and the pavement are independent from each other, so that the integrity and the cohesiveness of the two structures are poor, and the pressure shear crack and the damage are easily generated under the load action; (3) the well wall is generally of a brick or concrete structure, is limited in thickness and can be transversely extruded under the action of road surface load, so that inward displacement and damage can be caused. Particularly, with the increase of traffic flow and repeated action of load, the phenomenon becomes more and more obvious; (4) the well cover is generally made of cast iron or concrete, and under the repeated action of road surface load, due to insufficient bearing capacity, bending deformation, even tensile cracks, fracture and the like are easy to occur. In summary, the reasons for the aforementioned engineering problems can be summarized as: the structural materials are different; the structures are built independently; the bearing load is larger and larger.

Based on the reasons for the engineering problems, the utility model designs an inspection well with a reinforced well wall and an integral well lid, which comprises a reinforced well wall structure and an integral well lid structure;

the reinforced well wall structure comprises a well wall and tie bars arranged inside the well wall;

the integral well lid structure comprises a well lid guard ring arranged at the top of the well wall, a well wall top guard pier and a well lid.

The tie bars in the reinforced well wall structure are arranged in layers from bottom to top, the vertical distance between two adjacent layers of tie bars is 20-30cm, the tie bars on the same plane are uniformly arranged on the circumference, the included angle between every two tie bars is 30 degrees or 45 degrees, one end of each tie bar is flush with the inner side of the well wall, the bend is arranged at 90 degrees, and the length of the bend is three times of the diameter of each tie bar.

When the burial depth of the manhole is not less than 0.8m, the length of each layer of tie bar is calculated according to a linear difference value, wherein the distance between the outer end of the tie bar at the bottommost layer and the outer side of the wall of the manhole is the inner radius of the manhole, and the distance between the outer end of the tie bar at the topmost layer and the outer side of the wall of the manhole is the inner diameter of the manhole; when the buried depth of the manhole is less than 0.8m, the length of each layer of tie bar is the inner diameter of the manhole.

The surface of the bottom of the manhole is not provided with a tie bar, and the top of the wall of the manhole is provided with the tie bar.

The tie bars are smooth round steel bars with the diameter of 6-10mm, and the steel bars are subjected to rust prevention treatment.

The well lid protective shroud among the integral well lid structure is equipped with the fence of encorbelmenting including installing the annular bottom plate at the wall of a well top of manhole and setting at the outer edge's of annular bottom plate upper surface baffle, baffle outer wall intermediate position, and annular bottom plate upper surface circumference equipartition has four lugs, and every lug top all is equipped with the bolt hole.

The annular bottom plate and the baffle are steel plates with the thickness of 6-10 mm; the width of the annular bottom plate is 5-10cm, and the height of the baffle is 4-6 cm; the overhanging fence is a steel plate with the thickness of 6-8mm, and the outer edge of the overhanging fence is flush with the outer side of the well wall or extends to the outer side of the well wall; the bump is of a hemispherical structure with the diameter of 20-30 mm; the diameter of the bolt hole is 10 mm.

The top of the well wall of the integral well cover structure protects the mound for setting up the concrete fender mound at the top of the well wall of the well, and the boom that encorbelments is located inside the concrete fender mound.

Well lid bottom among the integral well lid structure becomes domes, and well lid bottom circumference equipartition has four concave bodies, and the lug on the annular bottom plate inserts in the concave body that corresponds, corresponds every concave body on the well lid and all is equipped with a bolted connection hole, and the well lid passes through bolted connection hole and the downthehole bolt of bolted connection and links together with the annular bottom plate, runs through on the well lid has the bleeder vent, is equipped with the silica gel pad between well lid and the annular bottom plate.

The construction method of the manhole with the reinforced well wall and the integral well lid comprises three working conditions:

a. the construction of the well wall-well lid structure is in the working condition of the road structure before stagnation:

excavating all soil bodies within the length range of the tie bars, then carrying out well wall building, filling and tamping, placing the tie bars, positioning a well lid guard ring, pouring a well wall top guard pier and placing the well lid until the building is finished;

the specific operation process is as follows:

excavating earth; tamping a substrate; constructing a cushion layer; building a first layer of well wall; placing a wall protection sleeve; paving the soil behind the wall; tamping a soil body behind the wall; taking out the wall protection sleeve; marking the position of the tie bar; extruding the tie bar into the groove; cleaning the surface of the well wall; building the next layer of well wall, and circulating in sequence; tamping the earthwork of the top layer; cleaning the top surface of the well wall; applying a leveling layer on the top of the well wall; excavating a pier protecting pouring groove; placing a well cover guard ring; pouring the concrete pier and placing the well cover; finishing construction;

in the process: the building height of each layer of well wall is based on the plane position of the tie bar; the filling material behind the well wall is clay or lime-soil material with good gradation; in the process of soil body filling and tamping, the construction load can cause lateral extrusion to the well wall, and a retaining wall sleeve is required to be placed inside the well wall; in order to avoid disturbance to the tie bars of the next layer in the process of filling and tamping the soil body on the wall of the previous layer, when the soil body of the next layer is filled and tamped, the height of the soil body after tamping exceeds the diameter of at least two times of the tie bars on the surface of the well wall, then the groove is cut along the placement direction of the tie bars and the tie bars are squeezed in; a leveling layer is made on the top of the well wall, and the thickness of the leveling layer is the diameter of the tie bar; when the concrete fender pier pouring groove is excavated, the concrete fender pier pouring groove is excavated manually, and the tie bars cannot be touched;

b. the road structure construction is in the working condition of the well wall-well lid structure before stagnation:

the method adopts a full excavation method in the working condition a, and is characterized in that the filling material behind the well wall is consistent with the road structure, and the lap joint of the new structure and the old structure is excavated into a step shape, so that the uneven settlement is avoided; adopting the principle of less excavation, low interference and quick recovery, only excavating the soil body within the outer diameter range of the well wall, and then placing the tie bars into the surrounding soil body by adopting a hammering insertion method or a drilling implantation method;

the specific process of the hammering insertion method comprises the following steps:

excavating earth; tamping a substrate; constructing a cushion layer; building a first layer of well wall; filling gaps behind the wall; marking the position of the tie bar; hammering and inserting the tie bar; cleaning the surface of the well wall; building the next layer of well wall, and circulating in sequence; inserting a top tie bar; cleaning the top surface of the well wall; constructing a leveling layer on the top of the well wall; cleaning a protective pier pouring groove; placing a well cover guard ring; pouring the concrete pier and placing the well cover; finishing construction;

the drilling implantation method comprises the following specific processes:

excavating earth; tamping a substrate; constructing a cushion layer; building a first layer of well wall; filling gaps behind the wall; marking the position of the tie bar; drilling by a drilling machine; hammering and implanting a tie bar; cleaning the surface of the well wall; building the next layer of well wall, and circulating in sequence; implanting a top tie bar; cleaning the top surface of the well wall; applying a leveling layer on the top of the well wall; cleaning a protective pier pouring groove; placing a well cover guard ring; pouring the concrete pier and placing the well cover; finishing construction;

in the process: in order to ensure that the well wall has a certain working surface, the earth excavation range is 6-10cm larger than the outer diameter of the inspection well; the concrete pier pouring groove is completed along with the earthwork excavation; filling and compacting a gap behind the well wall, and selecting cement paste or cement mortar; directly adopting a hammering insertion method for a soft soil layer, and adopting a drilling implantation method for a hard roadbed pavement layer; in order to ensure that the tie bar is in close contact with the soil body, the diameter of the drill hole is 1-2mm smaller than that of the tie bar;

c. the existing well wall-well lid structure is updated and transformed:

and (3) directly placing the tie bars in the surrounding soil body by adopting a hammering insertion method or a drilling implantation method according to a construction method in the working condition b by adopting the principle of 'non-excavation, low interference and quick recovery'.

The utility model has the advantages that: the utility model discloses the wall of a well-well lid structure becomes an organic whole with surrounding roadbed pavement structure, and the use of drawknot muscle makes two kinds of structures produce the relation, has strengthened the wholeness, has not only improved the compressive shear strength of the soil body on every side, makes its "self-supporting" ability strengthen, also plays the drawknot effect to the wall of a well; under the action of the tie bars, the rigidity of the surrounding soil body is increased, the settlement under the action of load is reduced, and the transverse extrusion borne by the well wall is reduced; by changing the lengths of the tie bars at different depths, the uniform change of rigidity and settlement can be realized, a non-structural internal stepped lap joint is formed, and uneven settlement can be avoided; the integral well lid structure comprises a well lid guard ring at the top of the well wall, a well wall top guard pier and a well lid, and protects the top of the well wall.

Drawings

FIG. 1 is a schematic plan view of a manhole;

FIG. 2 is a schematic cross-sectional view of a manhole (parallel to the pipe chase direction);

FIG. 3 is a schematic cross-sectional view of a manhole (vertical slot orientation);

FIG. 4 is a schematic plan view of a lacing wire;

FIG. 5 is a schematic view (in plan view) of the scope of the manhole;

FIG. 6 is a schematic plan view of the well cover retainer;

FIG. 7 is a schematic cross-sectional view of the manhole cover retainer (section A-A in FIG. 6);

FIG. 8 is a schematic view of a concrete pier at the top of the well wall;

FIG. 9 is a schematic plan view of a concrete pier at the top of the well wall;

FIG. 10 is a schematic plan view of the well lid;

FIG. 11 is a schematic sectional view of the well lid (section B-B in FIG. 10);

fig. 12 is a schematic cross-sectional view of a reinforced manhole-integral manhole structure;

FIG. 13 is a schematic view of the overlapping portion of the manhole cover and the manhole cover retainer;

FIG. 14 is a construction process of a reinforced well wall-integral well cover full excavation method;

FIG. 15 is a reinforced manhole wall-integral manhole cover hammering insertion method construction process;

fig. 16 is a construction flow of a reinforced well wall-integral well lid drilling implantation method;

wherein: 1-repairing the well; 2-well wall; 3-a pipe groove; 4-well bottom; 5-earth surface; 6-tie the tendon; 7-security zone boundaries; 8-a ring-shaped bottom plate; 9-a baffle plate; 10-overhanging fence; 11-a bump; 12-bolt holes; 13-concrete pier protection; 14-well wall edge; 15-edge of concrete pier; 16-well cover; 17-air holes; 18-concavity; 19-silica gel pad; 20-bolt connection holes;

the following detailed description will be made in conjunction with embodiments of the present invention with reference to the accompanying drawings.

Detailed Description

The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention. The invention is described in more detail in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become more fully apparent from the following description and appended claims. It should be noted that the drawings are in simplified form and are not to precise scale, and are provided for convenience and clarity in order to facilitate the description of the embodiments of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The invention will be further explained with reference to the following figures and examples:

an inspection well with a reinforced well wall and an integral well lid comprises a reinforced well wall structure and an integral well lid structure; the reinforced well wall structure is characterized in that a tie bar 6 is additionally arranged in a well wall 2, one end of the tie bar 6 is bent for 90 degrees and placed in the well wall 2, and the integral well lid structure comprises a well lid guard ring, a well wall top guard pier and a well lid 16.

The manhole cover guard ring mainly comprises an annular bottom plate 8, a baffle plate 9, a cantilever fence 10, a convex block 11 and bolt holes 12, the top guard pier of the manhole wall is made of cast-in-place concrete, the surface of the top guard pier is flush with the ground surface 5, the outer edge of the bottom of the manhole cover 16 is horizontal, the middle part of the manhole cover is arched, the whole manhole cover is dome-shaped and is provided with air holes 17, a concave body 18 and bolt connecting holes 20. The well lid protective shroud passes through the screed-coat and places at 2 tops on the wall of a well, and well lid protective shroud and wall of a well top fender mound are connected through the enclosure 10 of encorbelmenting, and 16 and the well lid protective shroud of well lid pass through bolted connection.

In order to realize the coordination effect of the well wall 2 and the surrounding road structure and enhance the connection and integrity between the well wall 2 and the surrounding road structure, the arrangement of the tie bars 6 in layers in the well wall 2 and the surrounding soil body can be considered by referring to the principles of the wall tie bars and the reinforced soil, as shown in fig. 1 to 4.

As can be seen from figures 1-4, the use of the tie bars 6 makes the two structures generate connection, enhances the integrity, not only improves the compression and shear strength of the surrounding soil body, enhances the self-supporting capacity, but also plays a role in tying the well wall. Under the action of the tie bars 6, the rigidity of the surrounding soil body is increased, the settlement under the action of load is reduced, and the transverse extrusion borne by the well wall 2 is reduced. Then, through changing the length of the lacing wire 6 at different depths, the rigidity and the uniform change of settlement can be realized, a non-structural internal step type lap joint is formed, and the non-uniform settlement can be avoided.

The tie bars 6 are arranged in layers from bottom to top, the vertical distance is 20-30cm, the tie bars 6 are arranged in a star-shaped manner on the same plane, and the included angle between every two tie bars is 30 degrees or 45 degrees, for example: twelve tie bars 6 are arranged on each layer when the included angle of every two tie bars is 30 degrees, eight tie bars 6 are arranged on each layer when the included angle of every two tie bars is 45 degrees, the tie bars 6 are smooth steel bars with the thickness of 6-10mm, and the steel bars need to be subjected to rust prevention treatment. Wherein, the surface of the cushion layer of the bottom 4 of the manhole 1 is not provided with the tie bar 6, and the top of the well wall 2 is provided with the tie bar 6. The placement of the tie bars 6 avoids the pipe groove 3 at the bottom of the manhole 1. One end of each tie bar 6 is flush with the inner side of the well wall 2 and is bent for 90 degrees, the length of the bent section is three times of the diameter of the steel bar, the distance between the other end of each tie bar and the outer side of the well wall 2 is related to the embedding depth, the distance between the outer ends of the bottom layer tie bar 6 and the top layer tie bar 6 and the outer side of the well wall 2 is the inner radius and the inner diameter of the manhole 1 respectively, and the length of the middle layer tie bar 6 is calculated according to linear interpolation. Particularly, when the burial depth of the manhole 1 is shallow and is less than 0.8m, the lengths can be selected to be consistent in order to reduce the processing amount of the tie bars 6 and are calculated according to the inner diameter of the manhole 1.

The reinforced well wall structure belongs to concealed engineering, and a safety protection area (security area) needs to be arranged so as to avoid influence and damage to the reinforced well wall structure caused by surrounding engineering construction. Then, the range of the security area is in the range of the length of the tie bar 6 at the top of the well wall 2 on the plane, the position of the boundary 7 of the security area is as shown in fig. 5, the range of the security area is consistent with that of the surrounding road structure in depth, the upper surface of the lower lying layer of the foundation is generally used as the boundary, and a safety factor larger than 1.0 can be endowed to the range.

The manhole cover retainer is used for providing a horizontal base plate and a protection space for the manhole cover 16 and protecting the top of the shaft wall 2, and mainly comprises an annular bottom plate 8, a baffle plate 9, a cantilever fence 10, a convex block 11 and bolt holes 12, which are respectively shown in fig. 6 and 7.

The manhole cover guard ring is made of steel, the annular bottom plate 8 and the baffle 9 are made of steel plates with the thickness of 6-10mm, the width of the annular bottom plate 8 is 5-10cm, and the height of the baffle 9 is 4-6 cm; the overhanging fence 10 is made of a steel plate with the thickness of 6-8mm, is similar to a Chinese character 'tian', overhangs outwards at the middle height position outside the baffle 9, has the length at least equal to the outside of the well wall 2, and can be determined according to actual conditions; the convex block 11 is a hemisphere with the diameter of 20-30mm, a bolt hole 12 with the diameter of 10mm is arranged in the middle, and the convex block corresponds to a hemispherical concave body 18 on the inner side of the well cover 16 and is used for stabilizing and fixing the well cover 16. Meanwhile, in order to beautify the appearance, passivate edges and corners and prevent corrosion, all parts of the well cover guard ring need to be polished and subjected to corrosion prevention and rust prevention treatment during production.

In order to prevent the top of the well wall 2 from being damaged and prevent the well lid retainer from moving, a ring of piers are required to be arranged on the top of the well wall 2, the concrete piers 13 are made of cast-in-place concrete, and the concrete piers 13, the well wall edge 14 and the concrete pier edge 15 are shown in fig. 8 and 9.

The overhanging fence 10 of the well lid guard ring and the tie bar 6 at the top of the well wall 2 serve as reinforcing steel bars in the concrete pier 13, the integrity and the compressive shear strength of the concrete pier 13 can be improved, the top of the well wall 2 can be protected, the width and the height of the concrete pier 13 are generally 20cm and 20cm, and the concrete can be C25 or C30.

The well lid 16 is the steel, and the top surface keeps level with the upper surface of baffle 9, and well lid 16 is located the well lid protective shroud inside completely promptly, has guaranteed the wholeness of well lid 16 and well lid protective shroud, is equipped with bleeder vent 17, concave 18 and bolted connection hole 20 on the well lid 16. In order to reduce vibration and noise, the bottom surface and the side surface of the contact between the well cover 16 and the well cover retainer are adhered with silica gel pads 19, the concave body 18 is not adhered, and the thickness is 3-5mm, which is respectively shown in fig. 10 and fig. 11.

The diameters of the concave body 18 and the bolt connecting hole 20 are consistent with the diameter of the convex block 11 on the annular bottom plate 8 of the well lid guard ring, and the bolt holes 12 are used for fixing the well lid 16 on the well lid guard ring to avoid vibration and moving; the periphery of the bottom of the well cover 16 is horizontal and completely consistent with the width of the annular bottom plate 8, the middle part of the well cover is arched, and the whole well cover is in a dome shape, so that the material is saved, the stress is reasonable, and the specific size can be determined according to the calculation of the material strength and the bearing load; the diameter of the air holes 17 is 30mm, so that the air holes are used for balancing air pressure inside and outside the well and are also used for facilitating moving of the well cover 16 during maintenance.

In conclusion, the reinforced well wall structure, the well lid retainer, the well wall top protection pier and the well lid 16 are assembled together to obtain the manhole with the reinforced well wall and the integral well lid, which is respectively shown in fig. 12 and 13.

The construction method of the manhole with the reinforced well wall and the integral well lid comprises three working conditions:

a. the construction of the well wall-well lid structure is in the working condition of the road structure before stagnation:

excavating all soil bodies within the length range of the tie bars 6, then building the well wall 2, tamping the filling, placing the tie bars 6, positioning the well cover guard ring, pouring the top guard pier of the well wall, and placing the well cover 16 until the construction is finished;

the specific operation process is as follows:

excavating earth; tamping a substrate; constructing a cushion layer; building a first layer of well wall 2; placing a wall protection sleeve; paving the soil behind the wall; tamping a soil body behind the wall; taking out the wall protection sleeve; marking the position of the tie bar 6; the groove is extruded into the lacing wire 6; cleaning the surface of the well wall 2; the next layer of well wall 2 is built and is circulated in sequence; tamping the earthwork of the top layer; cleaning the top surface of the well wall 2; applying a leveling layer on the top of the well wall 2; excavating a pier protecting pouring groove; placing a well cover guard ring; pouring the concrete pier 13, and placing the well cover 16; finishing construction; as shown in fig. 14;

in the process: the building height of each layer of well wall 2 is based on the plane position of the tie bar 6; the filling material behind the well wall 2 is clay or lime-soil material with good gradation; in the soil filling and tamping processes, the construction load can cause lateral extrusion on the well wall 2, and a retaining wall sleeve is required to be placed inside the well wall 2; in order to avoid disturbance to the tie bars 6 of the next layer in the process of filling and tamping the soil body behind the upper layer of wall, when the soil body of the next layer is filled and tamped, the height of the soil body after tamping exceeds the diameter of at least two times of the tie bars 6 on the surface of the well wall 2, then the grooves are cut along the placement direction of the tie bars 6 and the tie bars 6 are squeezed in; a leveling layer is made on the top of the well wall 2, and the thickness of the leveling layer is the diameter of the tie bar 6; when the concrete fender pier 13 is poured into the groove and excavated, the groove is excavated manually, and the tie bars 6 cannot be touched;

b. the road structure construction is in the working condition of the well wall-well cover structure before the construction is delayed:

the method adopts a full excavation method in the working condition a, and is characterized in that the filling material behind the wall 2 of the well wall is consistent with the road structure, and the lap joint of the new structure and the old structure is excavated into a step shape, so that uneven settlement is avoided; adopting the principle of less excavation, low interference and quick recovery, excavating only the soil body within the outer diameter range of the well wall 2, and then placing the tie bars 6 in the surrounding soil body by adopting a hammering insertion method or a drilling implantation method;

the specific process of the hammering insertion method comprises the following steps:

excavating earth; tamping a substrate; constructing a cushion layer; building a first layer of well wall 2; filling gaps behind the wall; marking the position of the tie bar 6; hammering and inserting the tie bar 6; cleaning the surface of the well wall 2; the next layer of well wall 2 is built and circulated in sequence; the top tie bar 6 is inserted; cleaning the top surface of the well wall 2; constructing a leveling layer on the top of the well wall 2; cleaning a protective pier pouring groove; placing a well cover guard ring; pouring the concrete pier 13 and placing the well cover 16; finishing construction; as shown in fig. 15;

the drilling implantation method comprises the following specific processes:

excavating earth; tamping a substrate; constructing a cushion layer; building a first layer of well wall 2; filling gaps behind the wall; marking the position of the tie bar 6; drilling by a drilling machine; hammering and implanting the tie bar 6; cleaning the surface of the well wall 2; the next layer of well wall 2 is built and is circulated in sequence; implanting a top tie bar 6; cleaning the top surface of the well wall 2; applying a leveling layer on the top of the well wall 2; cleaning a protective pier pouring groove; placing a well cover guard ring; pouring the concrete pier 13, and placing the well cover 16; after the construction is completed, as shown in figure 16,

in the process: in order to ensure that the well wall 2 has a certain working surface, the earth excavation range is 6-10cm larger than the outer diameter of the inspection well 1; the concrete pier 13 pouring groove is completed along with the earthwork excavation; the gap behind the well wall 2 is tightly filled, and cement paste or cement mortar is selected; directly adopting a hammering insertion method for a soft soil layer, and adopting a drilling implantation method for a hard roadbed pavement layer; in order to ensure that the tie bar 6 is in close contact with the soil body, the diameter of the drilled hole is 1-2mm smaller than that of the tie bar 6;

c. the existing well wall-well lid structure is updated and reformed:

and (3) directly placing the tie bars 6 in the surrounding soil body by adopting a hammering insertion method or a drilling implantation method according to a construction method in the working condition b by adopting the principle of 'non-excavation, low interference and quick recovery'.

The present invention has been described above with reference to the accompanying drawings, and it is obvious that the present invention is not limited by the above embodiments, and various improvements made by the method concept and technical solution of the present invention or directly applied to other occasions without improvement are all within the protection scope of the present invention.

Claims (9)

1. An inspection well with a reinforced well wall and an integral well lid is characterized by comprising a reinforced well wall structure and an integral well lid structure;

the reinforced well wall structure comprises a well wall (2) and a tie bar (6) arranged inside the well wall (2);

the integral well lid structure comprises a well lid guard ring arranged at the top of the well wall (2), a well wall top guard pier and a well lid (16).

2. The manhole according to claim 1, wherein the tie bars (6) in the reinforced manhole wall structure are arranged in layers from bottom to top, the vertical distance between two adjacent layers of tie bars (6) is 20-30cm, the tie bars (6) on the same plane are uniformly arranged in the circumference, the included angle between every two tie bars is 30 degrees or 45 degrees, one end of each tie bar (6) is flush with the inner side of the manhole wall (2), and the bending angle is 90 degrees and the bending section length is three times of the diameter of each tie bar (6).

3. The manhole according to claim 2, wherein when the burial depth of the manhole (1) is not less than 0.8m, the length of each layer of tie bars (6) is calculated according to a linear difference, wherein the distance between the outer end of the tie bar (6) at the bottommost layer and the outer side of the manhole wall (2) is the inner radius of the manhole (1), and the distance between the outer end of the tie bar (6) at the topmost layer and the outer side of the manhole wall (2) is the inner diameter of the manhole (1); when the burial depth of the manhole (1) is less than 0.8m, the length of each layer of tie bar (6) is the inner diameter of the manhole (1).

4. An access well with a reinforced well wall and an integral well lid according to claim 3, characterized in that no tie bar (6) is placed on the surface of the well bottom (4) of the access well (1), and the tie bar (6) is placed on the top of the well wall (2).

5. The manhole according to claim 4, wherein the tie bars (6) are smooth round bars with a diameter of 6-10mm, and the bars are subjected to rust prevention treatment.

6. The manhole with the reinforced well wall and the integral well lid as claimed in claim 1, wherein the well lid retainer in the integral well lid structure comprises an annular bottom plate (8) mounted at the top of the well wall (2) of the manhole (1) and a baffle (9) arranged at the outer edge of the upper surface of the annular bottom plate (8), an overhanging fence (10) is arranged in the middle of the outer wall of the baffle (9), four lugs (11) are uniformly distributed on the circumference of the upper surface of the annular bottom plate (8), and a bolt hole (12) is formed in the top of each lug (11).

7. The manhole according to claim 6, wherein the annular bottom plate (8) and the baffle plate (9) are steel plates with the thickness of 6-10 mm; the width of the annular bottom plate (8) is 5-10cm, and the height of the baffle plate (9) is 4-6 cm; the overhanging fence (10) is a steel plate with the thickness of 6-8mm, and the outer edge of the overhanging fence (10) is flush with the outer side of the well wall (2) or extends to the outer side of the well wall (2); the bump (11) is of a hemispherical structure with the diameter of 20-30 mm; the diameter of the bolt hole (12) is 10 mm.

8. The manhole with the reinforced well wall and the integral well lid according to claim 1, wherein the top pier of the well wall in the integral well lid structure is a concrete pier (13) arranged at the top of the well wall (2).

9. The manhole with the reinforced well wall and the integral well lid as claimed in claim 1, wherein the bottom of the well lid (16) in the integral well lid structure is in an arch structure, four concave bodies (18) are uniformly distributed on the circumference of the bottom of the well lid (16), a convex block (11) on the annular bottom plate (8) is inserted into the corresponding concave body (18), a bolt connecting hole (20) is formed in the well lid (16) corresponding to each concave body (18), the well lid (16) is connected with the annular bottom plate (8) through the bolt connecting hole (20) and a bolt in the bolt hole (12), air holes (17) penetrate through the well lid (16), and a silica gel pad (19) is arranged between the well lid (16) and the annular bottom plate (8).

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