CN111335442A - Large integral inspection well and preparation method thereof - Google Patents
Large integral inspection well and preparation method thereof Download PDFInfo
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- CN111335442A CN111335442A CN202010217258.2A CN202010217258A CN111335442A CN 111335442 A CN111335442 A CN 111335442A CN 202010217258 A CN202010217258 A CN 202010217258A CN 111335442 A CN111335442 A CN 111335442A
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/02—Manhole shafts or other inspection chambers; Snow-filling openings; accessories
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Abstract
The invention discloses a large integral inspection well and a preparation method thereof, wherein the inspection well comprises a cylindrical plastic outer wall, a cylindrical plastic inner wall positioned in the cylindrical interior of the plastic outer wall, an integrally cast cement concrete wall core and a bearing branch pipe; the cement concrete wall core is positioned between the plastic outer wall and the plastic inner wall; the plastic outer wall comprises a plastic closing-in outer wall, a plastic well outer wall and a plastic well seat outer wall, wherein the plastic closing-in outer wall and the plastic well seat outer wall are sequentially matched and arranged from top to bottom, and the plastic inner wall comprises a plastic closing-in inner wall, a plastic well inner wall and a plastic well seat inner wall, wherein the plastic closing-in inner wall and the plastic well seat inner wall are sequentially supported and arranged from top to bottom. The spliced and combined plastic outer wall and inner wall become a cement concrete pouring template in a construction site, and the cement concrete mechanical construction equipment integrally pours the cement concrete base and the cement concrete wall core.
Description
Technical Field
The invention relates to the technical field of inspection wells, in particular to a large integral inspection well and a preparation method thereof.
Background
Inspection wells of municipal road water supply and drainage pipe network systems are commonly called inspection wells, are generally arranged at junctions of water supply and drainage pipes, turning positions, pipe diameter or gradient changing positions, drop positions and linear pipe sections at certain intervals, and are drainage auxiliary structures convenient for regular inspection, cleaning and dredging of the pipes. The inspection well of the municipal road is usually a large inspection well, the outer diameter of which is generally more than 1000mm, the height of which is more than 1500mm, the large inspection well is formed by combining structures such as a closing-in structure, a well chamber structure and a well seat structure, and the closing-in structure, the well chamber structure and the well seat structure of the inspection well are mainly made of materials such as brick mixture, cement and plastics. The large inspection well not only bears pressure loads such as traffic flow, earth and stone on roads, but also has to meet the requirements of strong compression strength and bending strength in the radial direction and the axial direction.
The traditional large inspection well is a brick-concrete structure formed by manually building bricks, and the brick-concrete structure built by manually building bricks has the defects of long construction period, high labor intensity and high cost. Large inspection wells using cementitious products are typically modular assemblies, such as those described in patent application nos.: 201510181534 'prefabricated inspection well and construction method thereof', patent application No.: 201911174852 prefabricated large-sized reinforced concrete inspection well and its construction method, etc., it has the disadvantages of poor sealing performance of the joint of cement products and easy separation of the joint. At present, a great amount of plastic inspection wells are used for municipal roads, but due to the fact that the rigidity and the strength of the plastic inspection wells are insufficient, the plastic inspection wells are only suitable for construction of parks, road greenbelts, residential community roads and the like with light loads, and are not suitable for trunk roads with heavy loads.
In the process of promoting urbanization construction, in order to meet the requirement of fast and efficient construction of a heavy-load main road, large inspection well products of municipal road water supply and drainage pipe network systems and research, development and application of the large inspection well products are one of key technologies.
Disclosure of Invention
The invention mainly aims to provide a large integral inspection well and a preparation method thereof, which can be applied to a road water supply and drainage pipe network system with heavy load. The large inspection well comprises a plastic outer wall, a plastic inner wall, an integrally poured cement concrete wall core and a cement concrete base, wherein the plastic outer wall and the plastic inner wall which are spliced and combined are used as a cement concrete pouring template in a construction site, and the cement concrete mechanical construction equipment integrally pours the cement concrete base and the cement concrete wall core.
In order to achieve the purpose, the specific technical scheme of the invention is as follows:
a large integral inspection well comprises a cylindrical plastic outer wall, a cylindrical plastic inner wall positioned in the cylindrical plastic outer wall, an integrally cast cement concrete wall core and a receiving branch pipe;
the cement concrete wall core is positioned between the plastic outer wall and the plastic inner wall;
the plastic outer wall comprises a plastic closing-in outer wall, a plastic well outer wall and a plastic well seat outer wall, wherein the plastic closing-in outer wall, the plastic well outer wall and the plastic well seat outer wall are sequentially matched from top to bottom;
the plastic inner wall comprises a plastic closing-in inner wall, a plastic well chamber inner wall and a plastic well seat inner wall, wherein the plastic closing-in inner wall, the plastic well chamber inner wall and the plastic well seat inner wall are sequentially supported and placed from top to bottom;
the outer wall of the plastic well seat and the inner wall of the plastic well seat are respectively provided with branch pipe joint holes along the radial direction, and the supporting branch pipe is connected to the two branch pipe joint holes in a matching way and extends out of the outer wall of the plastic well seat.
Bearing rings are respectively arranged on the upper end surfaces of the outer wall of the plastic well and the outer wall of the plastic well seat along the circumferential direction, and horizontal supporting surfaces are arranged on the inner sides of the bearing rings;
the outer circumferential surface of the lower end of the outer wall of the plastic well is matched and embedded in the bearing ring of the outer wall of the plastic well seat, and the lower end surface of the outer wall of the plastic well is supported on the horizontal supporting surface of the inner side of the bearing ring of the outer wall of the plastic well seat;
the outer circumferential surface of the lower end of the plastic closing-in outer wall is matched and embedded in the bearing ring of the plastic well outer wall, and the lower end face of the plastic closing-in outer wall is supported on the inner side horizontal supporting face of the bearing ring of the plastic well outer wall.
The height of the bearing ring is 50-100 mm.
The receiving ring is used for fixedly connecting the closing-in part and the well chamber with the well seat, the receiving ring on the outer wall of the plastic well chamber is fixedly connected with the outer wall of the plastic closing-in part, and the receiving ring on the outer wall of the plastic well seat is fixedly connected with the outer wall of the plastic well chamber.
And a plurality of self-tapping screws which are uniformly distributed along the circumferential direction are respectively and fixedly connected between the outer wall of the plastic closing-in and the inner wall of the plastic closing-in, between the outer wall of the plastic well chamber and the inner wall of the plastic well chamber, and between the outer wall of the plastic well seat and the inner wall of the plastic well seat in the radial direction.
The number of the self-tapping screws between the outer wall and the inner wall of the plastic closing-in is 20-50, 1-2 layers of the self-tapping screws are adopted, and the outer wall and the inner wall of the plastic closing-in are connected and combined into the plastic closing-in of the inspection well through the self-tapping screws between the outer wall and the inner wall of the plastic closing-in;
the number of the self-tapping screws between the outer wall of the plastic well chamber and the inner wall of the plastic well chamber is 20-100, 1-3 layers of the self-tapping screws between the outer wall of the plastic well chamber and the inner wall of the plastic well chamber are adopted, and the outer wall of the plastic well chamber and the inner wall of the plastic well chamber are connected and combined into the plastic well chamber of the inspection well through the self-tapping screws between the outer wall of the plastic well chamber and the inner wall of the;
the number of the self-tapping screws between the outer wall of the plastic well seat and the inner wall of the plastic well seat is 20-100, 1-3 layers of the self-tapping screws between the outer wall of the plastic well seat and the inner wall of the plastic well seat are adopted, and the outer wall of the plastic well seat and the inner wall of the plastic well seat are connected and combined into the plastic well seat of the inspection well through the self-tapping screws between the outer wall of the plastic well seat and the inner wall of the;
the inspection well is composed of a plastic closing-in, a plastic well chamber and a plastic well seat;
the diameter of the tapping screw is 5-10 mm, and the length of the tapping screw is 50-120 mm.
The height of the plastic closing-in is 300-600 mm, the height of the plastic well chambers is 500-1000 mm, the height of the plastic well seats is 1000-1500 mm, the number of the plastic well chambers is 1-5, the plastic well chambers are combined in an up-and-down overlapping mode to form the whole inspection well chamber, and the lower end of the outer wall of the plastic well chamber positioned above the adjacent plastic well chambers is matched with the bearing ring of the outer wall of the plastic well chamber positioned below the adjacent plastic well chambers.
In order to improve the bending and tensile strength of the plastic outer wall and the plastic inner wall and reduce the deformation of the plastic outer wall and the plastic inner wall in the construction process, reinforcing rib plates are respectively arranged on the outer circumferential wall surfaces of the plastic outer wall and the plastic inner wall, and the thickness and the width of each reinforcing rib plate are consistent with the wall thickness of the plastic outer wall and the plastic inner wall.
The wall thicknesses of the plastic outer wall and the plastic inner wall are respectively 5-10 mm, the reinforcing rib plates are respectively distributed on the peripheral wall surfaces of the plastic outer wall and the plastic inner wall in the longitudinal direction and the transverse direction, and the distance between every two adjacent reinforcing rib plates is 10-30 mm; the equal-diameter distance between the plastic outer wall and the plastic inner wall is 50-100 mm, the diameter of the inspection well is 1000-1500 mm, the height of the inspection well is 1800-7100 mm, and the plastic outer wall and the plastic inner wall are made of PP or PVC or other plastic materials.
The outer diameter of each supporting branch pipe is 300-1000 mm, the number of the supporting branch pipes is 1-4, and the supporting branch pipes are distributed along the circumferential direction of the plastic well seat.
A large integral inspection well and a preparation method thereof are provided, the method comprises the following steps:
a. preparing, namely respectively manufacturing a plastic closing-in outer wall and a plastic closing-in inner wall, a plastic well outer wall and a plastic well chamber inner wall, a plastic well seat outer wall and a plastic well seat inner wall and a receiving branch pipe by adopting injection molding, extrusion molding and welding methods according to the length, width and height of the large integral inspection well; tapping threads by using tapping screws to install and combine the outer wall of the plastic closing-in and the inner wall of the plastic closing-in; tapping threads by using tapping screws to install and combine the outer wall of the plastic well chamber and the inner wall of the plastic well chamber; preparing cement concrete;
b. after the preparation work is finished, excavating a foundation pit embedded in the whole well body of the inspection well according to the construction sequence, firstly, arranging the outer wall of the plastic well base in the foundation pit on the construction site, and then, uniformly paving cement concrete on the upper surface of the bottom of the outer wall of the plastic well base until the cement concrete has the same thickness as the cement concrete wall core to serve as a base of the cement concrete wall core by using mechanical equipment; then, the inner wall of the plastic well seat is arranged on a base of the cement concrete wall core, the outer wall of the plastic well seat and the inner wall of the plastic well seat are connected through tapping screws in a tapping installation and combination mode, and the supporting branch pipe is connected with the outer wall of the plastic well seat and the inner wall of the plastic well seat in a matched and installation mode;
c. then, pouring cement concrete between the outer wall of the plastic well seat and the inner wall of the plastic well seat which are combined and connected until the height of the inner wall of the plastic well seat, and simultaneously filling earth stones on the outer side of the outer wall of the plastic well seat;
d. then, the outer wall of the plastic well chamber and the inner wall of the plastic well chamber which are connected in a combined mode are arranged on the outer wall of the plastic well seat and the inner wall of the plastic well seat which are connected in a combined mode, and the outer wall of the plastic well chamber is matched with the bearing ring of the outer wall of the plastic well seat; pouring cement concrete between the outer wall of the plastic well chamber and the inner wall of the plastic well chamber which are connected in a combined mode, and meanwhile filling earth and stones outside the outer wall of the plastic well chamber;
e. then, the outer wall of the plastic closing-in and the inner wall of the plastic closing-in which are combined and connected are arranged on the outer wall of the plastic well chamber and the inner wall of the plastic well chamber, and the outer wall of the plastic closing-in is matched with a bearing ring on the outer wall of the plastic well chamber; and pouring cement concrete between the plastic closing-in outer wall and the plastic closing-in inner wall which are connected in a combined mode, pouring the cement concrete until the height of the inspection well, and meanwhile filling soil and stones on the outer side of the plastic closing-in outer wall.
The invention has the beneficial effects that: 1. according to the size of the inspection well, the outer wall and the inner wall of the plastic closing-in, the outer wall and the inner wall of the plastic well chamber and the outer wall and the inner wall of the plastic well seat are respectively manufactured in a factory, so that transportation is facilitated, and the field construction and combined installation are facilitated; 2. the closing-in of the inspection well, the well chamber and the well seat adopt a plastic outer wall and inner wall combined structure, the sealing performance and the service life of the inspection well can be improved, the plastic outer wall and inner wall structure plays a role of a cement concrete pouring template, the cement concrete integral pouring on a construction site is realized, and the integral strength of the inspection well is improved; 3. tapping screws are adopted to tap threads, install, combine and connect the closing-in, the well chamber and the plastic outer wall and the plastic inner wall of the well seat, and the combination and installation in site construction are convenient and efficient; the self-tapping screw can be used for combining and connecting each closing-in, the well chamber and the well seat, and can also be used as a concrete reinforcing rib, so that the tensile strength of a cement concrete wall core of the inspection well is improved; 4. the method is suitable for the heavy-load trunk road, and can be used for standardized, generalized and serialized rapid and efficient production and field construction.
Drawings
FIG. 1 is a schematic top view of an inspection well according to the present invention.
FIG. 2 is a schematic sectional view A-A of the concrete of the present invention with the concrete removed.
Fig. 3 is a left side view of the structure of fig. 2.
Fig. 4 is a schematic structural view of fig. 2 after being filled with cement concrete.
Fig. 5 is a partially enlarged structural diagram of K in fig. 2.
Fig. 6 is a schematic view of the combination structure of the outer wall and the inner wall of the plastic well base after cement concrete is laid at the bottom of the well base.
FIG. 7 is a schematic sectional view of example 2 with concrete removed.
In the figure: the plastic well comprises a plastic closing-in outer wall 1, a plastic closing-in inner wall 2, a self-tapping screw 3, a plastic well outer wall 4, a plastic well inner wall 6, a plastic well inner wall 7, a plastic well seat outer wall 8, a plastic well seat inner wall 9, a branch pipe 10, a cement concrete wall core 11, a horizontal supporting surface 12 and a reinforcing rib plate 13.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.
Example 1: referring to fig. 1 to 6, in an embodiment of the present invention, there is provided a large integral manhole, including a cylindrical plastic outer wall, a cylindrical plastic inner wall located inside the cylindrical plastic outer wall, an integrally cast cement concrete wall core 11, a receiving branch pipe 10,
the cement concrete wall core 11 is positioned between the plastic outer wall and the plastic inner wall;
the plastic outer wall comprises a plastic closing-in outer wall 1, a plastic well outer wall 5 and a plastic well seat outer wall 8, wherein the plastic closing-in outer wall 1, the plastic well outer wall 5 and the plastic well seat outer wall 8 are arranged in a matched mode from top to bottom in sequence;
the plastic inner wall comprises a plastic closing-in inner wall 2, a plastic well chamber inner wall 6 and a plastic well seat inner wall 9 with a bottom, which are supported and placed in sequence from top to bottom, the plastic closing-in inner wall 2 is of an arc-shaped curved surface structure, the plastic closing-in inner wall 2 is provided with an upper opening and a lower opening, the diameter of the upper opening of the plastic closing-in inner wall 2 is smaller than that of the lower opening of the plastic closing-in inner wall 2,
the outer wall 8 of the plastic well seat and the inner wall 9 of the plastic well seat are respectively provided with branch pipe joint holes along the radial direction, and the supporting branch pipe 10 is connected on the joint holes of the two branch pipes in a matching way and extends out of the outer wall 8 of the plastic well seat.
A first bearing ring 4 is arranged on the upper end surface of the outer wall 5 of the plastic well along the circumferential direction, a second bearing ring 7 is arranged on the upper end surface of the outer wall 8 of the plastic well seat along the circumferential direction, horizontal supporting surfaces 12 are arranged on the inner sides of the bearing rings,
the outer circumferential surface of the lower end of the plastic well outer wall 5 is matched and embedded in the bearing ring II 7 of the plastic well seat outer wall 8, the lower end surface of the plastic well outer wall 5 is supported on the horizontal supporting surface 12 at the inner side of the bearing ring II 7 of the plastic well seat outer wall 8,
the outer circumferential surface of the lower end of the plastic closing-in outer wall 1 is matched and embedded in a first receiving ring 4 of the plastic well outer wall 5, and the lower end face of the plastic closing-in outer wall 1 is supported on a horizontal supporting face 12 on the inner side of the first receiving ring 4 of the plastic well outer wall 5.
The height of the receiving ring is 100 mm.
A plurality of self-tapping screws 3 which are uniformly distributed along the circumferential direction are respectively adopted to be fixedly connected in the radial direction between the plastic closing-in outer wall 1 and the plastic closing-in inner wall 2, between the plastic well outer wall 5 and the plastic well inner wall 6, and between the plastic well seat outer wall 8 and the plastic well seat inner wall 9.
The number of the self-tapping screws 3 between the plastic closing-in outer wall 1 and the plastic closing-in inner wall 2 is 20, the self-tapping screws 3 are 1 layer, and the plastic closing-in outer wall 1 and the plastic closing-in inner wall 2 are connected and combined into a plastic closing-in of the inspection well through the self-tapping screws 3 between the plastic closing-in outer wall 1 and the plastic closing-in inner wall 2;
the number of the self-tapping screws 3 between the outer wall 5 of the plastic well chamber and the inner wall 6 of the plastic well chamber is 50, the self-tapping screws 3 between the outer wall 5 of the plastic well chamber and the inner wall 6 of the plastic well chamber adopt 1 layer, and the outer wall 5 of the plastic well chamber and the inner wall 6 of the plastic well chamber are connected and combined into the plastic well chamber of the inspection well by the self-tapping screws 3 between the two;
the number of the self-tapping screws 3 between the outer wall 8 of the plastic well seat and the inner wall 9 of the plastic well seat is 50, the self-tapping screws 3 between the outer wall 8 of the plastic well seat and the inner wall 9 of the plastic well seat adopt 1 layer, and the outer wall 8 of the plastic well seat and the inner wall 9 of the plastic well seat are connected and combined into the plastic well seat of the inspection well by the self-tapping screws 3 between the two;
the inspection well is composed of a plastic closing-in, a plastic well chamber and a plastic well seat;
the tapping screw 3 has a diameter of 5mm and a length of 60 mm.
The height of the plastic closing-in is 400mm, the height of the plastic well chamber is 600mm, the height of the plastic well seat is 1000mm, and the number of the plastic well chambers is 1.
And reinforcing rib plates 13 are respectively arranged on the outer circumferential wall surfaces of the plastic outer wall and the plastic inner wall, and the thickness and the width of each reinforcing rib plate 13 are consistent with the wall thickness of the plastic outer wall and the plastic inner wall.
The wall thicknesses of the plastic outer wall and the plastic inner wall are respectively 5mm, the reinforcing rib plates 13 are respectively distributed on the peripheral wall surfaces of the plastic outer wall and the plastic inner wall along the longitudinal direction and the transverse direction, and the distance between every two adjacent reinforcing rib plates 13 is 10 mm; the equal diameter distance between the plastic outer wall and the plastic inner wall is 50mm, the diameter of the inspection well is 1000mm, the height of the inspection well is 2000mm, and the plastic outer wall and the plastic inner wall are made of PP or PVC.
The number of the receiving branch pipes 10 is 1, and the outer diameter of the receiving branch pipes is 500 mm.
A large integral inspection well and a preparation method thereof are provided, the method comprises the following steps:
a. preparing, namely respectively manufacturing a plastic closing-in outer wall 1, a plastic closing-in inner wall 2, a plastic well outer wall 5, a plastic well inner wall 6, a plastic well seat outer wall 8, a plastic well seat inner wall 9 and a receiving branch pipe 10 by adopting injection molding, extrusion molding and welding methods according to the length, width and height of the large integral inspection well; tapping screws 3 are used for tapping threads to install and connect the plastic closing-in outer wall 1 and the plastic closing-in inner wall 2; tapping screws 3 are used for tapping, installing and combining to connect the outer wall 5 of the plastic well chamber and the inner wall 6 of the plastic well chamber; preparing cement concrete;
b. after the preparation work is finished, excavating a foundation pit embedded in the whole well body of the inspection well according to the construction sequence, firstly placing the outer wall 8 of the plastic well base in the foundation pit on the construction site, and then uniformly paving cement concrete on the upper surface of the bottom of the outer wall 8 of the plastic well base until the cement concrete has the same thickness as the cement concrete wall core 11; then, the inner wall 9 of the plastic well seat is arranged on a base of a cement concrete wall core 11, the tapping screw 3 is used for tapping, installing and combining and connecting the outer wall 8 of the plastic well seat and the inner wall 9 of the plastic well seat, and the supporting branch pipe 10 is matched and installed and connected with the outer wall 8 of the plastic well seat and the inner wall 9 of the plastic well seat;
c. then, pouring cement concrete between the combined and connected plastic well seat outer wall 8 and the plastic well seat inner wall 9 until the height of the plastic well seat inner wall 9 is reached, and simultaneously filling earth stones on the outer side of the plastic well seat outer wall 8;
d. then, the outer wall 5 of the plastic well chamber and the inner wall 6 of the plastic well chamber which are connected in a combined mode are arranged on the outer wall 8 of the plastic well seat and the inner wall 9 of the plastic well seat which are connected in a combined mode, and the outer wall 5 of the plastic well chamber is matched in a second bearing ring 7 of the outer wall 8 of the plastic well seat; pouring cement concrete between the combined and connected plastic well outer wall 5 and the plastic well inner wall 6, and simultaneously filling earth and stones outside the plastic well outer wall 5;
e. then, installing the combined and connected plastic closing-in outer wall 1 and plastic closing-in inner wall 2 on the plastic well chamber outer wall 5 and the plastic well chamber inner wall 6, and matching the plastic closing-in outer wall 1 with a first receiving ring 4 of the plastic well chamber outer wall 5; and pouring cement concrete between the plastic closing-in outer wall 1 and the plastic closing-in inner wall 2 which are connected in a combined manner until the height of the inspection well is reached, and simultaneously filling soil and stones outside the plastic closing-in outer wall 1.
Example 2: as shown in fig. 7, in the large integral inspection well, 2 layers of self-tapping screws 3 are adopted between the outer wall 8 of the plastic well seat and the inner wall 9 of the plastic well seat;
the number of the plastic well chambers is 2, and the lower end of the outer wall 5 of the plastic well chamber positioned above the adjacent plastic well chambers is matched with the inner part of the bearing ring I4 of the outer wall 5 of the plastic well chamber positioned below the adjacent plastic well chambers;
the height of the inspection well is 2600 mm.
In the step d of the large integral inspection well and the preparation method thereof, an upper plastic well chamber between adjacent plastic well chambers is added to be matched with a lower plastic well chamber, cement concrete is filled in all 2 well chambers, and soil stones are filled outside.
The rest of the structure and method are the same as in example 1.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing detailed description, or equivalent changes may be made in some of the features of the embodiments described above. All equivalent structures made by using the contents of the specification and the attached drawings of the invention can be directly or indirectly applied to other related technical fields, and are also within the protection scope of the patent of the invention.
Claims (10)
1. A large integral inspection well is characterized by comprising a cylindrical plastic outer wall, a cylindrical plastic inner wall positioned in the cylindrical interior of the plastic outer wall, an integrally cast cement concrete wall core (11) and a receiving branch pipe (10);
the cement concrete wall core (11) is positioned between the plastic outer wall and the plastic inner wall;
the plastic outer wall comprises a plastic closing-in outer wall (1), a plastic well outer wall (5) and a plastic well seat outer wall (8) with a bottom, wherein the plastic closing-in outer wall (1) is of an arc-shaped curved surface structure, the plastic closing-in outer wall (1) is provided with an upper opening and a lower opening, and the diameter of the upper opening of the plastic closing-in outer wall (1) is smaller than that of the lower opening;
the plastic inner wall comprises a plastic closing-in inner wall (2), a plastic well chamber inner wall (6) and a plastic well seat inner wall (9) with a bottom, wherein the plastic closing-in inner wall (2) is of an arc-shaped curved surface structure, the plastic closing-in inner wall (2) is provided with an upper opening and a lower opening, and the diameter of the upper opening of the plastic closing-in inner wall (2) is smaller than that of the lower opening of the plastic closing-in inner wall (2);
the outer wall (8) of the plastic well seat and the inner wall (9) of the plastic well seat are respectively provided with branch pipe joint holes along the radial direction, and the supporting branch pipe (10) is connected to the two branch pipe joint holes in a matching way and extends out of the outer wall (8) of the plastic well seat.
2. A large integral manhole according to claim 1,
the upper end surfaces of the outer wall (5) of the plastic well and the outer wall (8) of the plastic well seat are respectively provided with a receiving ring along the circumferential direction, and the inner side of the receiving ring is provided with a horizontal supporting surface (12);
the outer circumferential surface of the lower end of the plastic well outer wall (5) is matched and embedded in a bearing ring of the plastic well seat outer wall (8), and the lower end surface of the plastic well outer wall (5) is supported on the inner side horizontal supporting surface (12) of the bearing ring of the plastic well seat outer wall (8);
the outer circumferential surface of the lower end of the plastic closing-in outer wall (1) is matched and embedded in a receiving ring of the plastic well outer wall (5), and the lower end surface of the plastic closing-in outer wall (1) is supported on an inner side horizontal supporting surface (12) of the receiving ring of the plastic well outer wall (5).
3. The large integral manhole according to claim 2 wherein the height of the receiving ring is 50 to 100 mm.
4. The large integral inspection well according to claim 2, characterized in that a plurality of self-tapping screws (3) uniformly distributed along the circumferential direction are respectively adopted to be fixedly connected in the radial direction between the plastic closing-in outer wall (1) and the plastic closing-in inner wall (2), between the plastic well outer wall (5) and the plastic well inner wall (6), and between the plastic well base outer wall (8) and the plastic well base inner wall (9).
5. The large integral inspection well according to claim 4, characterized in that the number of self-tapping screws (3) between the outer wall (1) of the plastic closing-in and the inner wall (2) of the plastic closing-in is 20-50, 1-2 layers of self-tapping screws (3) are adopted, and the outer wall (1) of the plastic closing-in and the inner wall (2) of the plastic closing-in are connected and combined by the self-tapping screws (3) between the two to form the plastic closing-in of the inspection well;
the number of the self-tapping screws (3) between the outer wall (5) of the plastic well chamber and the inner wall (6) of the plastic well chamber is 20-100, 1-3 layers of the self-tapping screws (3) between the outer wall (5) of the plastic well chamber and the inner wall (6) of the plastic well chamber are adopted, and the outer wall (5) of the plastic well chamber and the inner wall (6) of the plastic well chamber are connected and combined into the plastic well chamber of the inspection well through the self-tapping screws (3) between the outer wall (5) of the plastic well chamber and the;
the number of the self-tapping screws (3) between the outer wall (8) of the plastic well seat and the inner wall (9) of the plastic well seat is 20-100, 1-3 layers of the self-tapping screws (3) between the outer wall (8) of the plastic well seat and the inner wall (9) of the plastic well seat are adopted, and the outer wall (8) of the plastic well seat and the inner wall (9) of the plastic well seat are connected and combined into the plastic well seat of the inspection well through the self-tapping screws (3) between the outer wall (8) of the plastic well seat and the;
the inspection well is composed of a plastic closing-in, a plastic well chamber and a plastic well seat;
the diameter of the tapping screw (3) is 5-10 mm, and the length is 50-120 mm.
6. The large integral inspection well according to claim 5, wherein the height of the plastic closing-in is 300-600 mm, the height of the plastic well chambers is 500-1000 mm, the height of the plastic well seat is 1000-1500 mm, the number of the plastic well chambers is 1-5, a plurality of plastic well chambers are combined in an up-and-down overlapping mode to form the whole inspection well chamber, and the lower end of the plastic well chamber outer wall (5) of the plastic well chamber positioned above between the adjacent plastic well chambers is matched with the bearing ring of the plastic well chamber outer wall (5) of the plastic well chamber positioned below.
7. The large-scale integral type inspection well according to claim 1 or 2, characterized in that reinforcing rib plates (13) are respectively arranged on the outer circumferential wall surfaces of the plastic outer wall and the plastic inner wall, and the thickness and the width of the reinforcing rib plates (13) are consistent with the wall thickness of the plastic outer wall and the plastic inner wall.
8. The large integral inspection well according to claim 7, wherein the wall thicknesses of the plastic outer wall and the plastic inner wall are respectively 5-10 mm, the reinforcing rib plates (13) are respectively distributed on the peripheral wall surfaces of the plastic outer wall and the plastic inner wall along the longitudinal direction and the transverse direction, and the distance between every two adjacent reinforcing rib plates (13) is 10-30 mm; the equal-diameter distance between the plastic outer wall and the plastic inner wall is 50-100 mm, the diameter of the inspection well is 1000-1500 mm, the height of the inspection well is 1800-7100 mm, and the plastic outer wall and the plastic inner wall are made of PP or PVC.
9. A large integral manhole according to claim 1 or 5, wherein the supporting branch pipes (10) have an outer diameter of 300-1000 mm and a number of 1-4, and a plurality of supporting branch pipes (10) are distributed along the circumferential direction of the plastic well base.
10. A large integral inspection well and a preparation method thereof are characterized by comprising the following steps:
a. preparing, namely respectively manufacturing a plastic closing-in outer wall (1), a plastic closing-in inner wall (2), a plastic well outer wall (5), a plastic well chamber inner wall (6), a plastic well seat outer wall (8), a plastic well seat inner wall (9) and a receiving branch pipe (10) by adopting injection molding, extrusion molding and welding methods according to the length, width and height of the large integral inspection well; tapping screws (3) are used for tapping, installing and combining to connect the plastic closing-in outer wall (1) and the plastic closing-in inner wall (2); tapping screws (3) are used for tapping, installing and combining to connect the outer wall (5) of the plastic well chamber and the inner wall (6) of the plastic well chamber; preparing cement concrete;
b. after the preparation work is finished, excavating a foundation pit embedded in the whole well body of the inspection well according to the construction sequence, firstly arranging the outer wall (8) of the plastic well seat in the foundation pit on the construction site, and then uniformly paving cement concrete on the upper surface of the bottom of the outer wall (8) of the plastic well seat by using mechanized equipment until the cement concrete has the same thickness as the cement concrete wall core (11) to serve as a base; then, arranging the inner wall (9) of the plastic well seat on a base of a cement concrete wall core (11), connecting the outer wall (8) of the plastic well seat with the inner wall (9) of the plastic well seat by tapping installation and combination through tapping screws (3), and connecting the outer wall (8) of the plastic well seat with the inner wall (9) of the plastic well seat through matching of a supporting branch pipe (10);
c. then, pouring cement concrete between the outer wall (8) of the plastic well seat and the inner wall (9) of the plastic well seat which are combined and connected until the height of the inner wall (9) of the plastic well seat, and simultaneously filling earth stones on the outer side of the outer wall (8) of the plastic well seat;
d. then, the outer wall (5) of the plastic well chamber and the inner wall (6) of the plastic well chamber which are connected in a combined mode are arranged on the outer wall (8) of the plastic well seat and the inner wall (9) of the plastic well seat which are connected in a combined mode, and the outer wall (5) of the plastic well chamber is matched in a bearing ring of the outer wall (8) of the plastic well seat; pouring cement concrete between the combined and connected plastic well outer wall (5) and the plastic well inner wall (6), and simultaneously filling soil and stones outside the plastic well outer wall (5);
e. then, the plastic closing-in outer wall (1) and the plastic closing-in inner wall (2) which are connected in a combined mode are arranged on the plastic well outer wall (5) and the plastic well inner wall (6), and the plastic closing-in outer wall (1) is matched with a bearing ring of the plastic well outer wall (5); and pouring cement concrete between the plastic closing-in outer wall (1) and the plastic closing-in inner wall (2) which are connected in a combined manner until the height of the inspection well is reached, and simultaneously filling earth stones on the outer side of the plastic closing-in outer wall (1).
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Inventor after: Tan Wensheng Inventor after: Tan Fangtian Inventor after: Xu Jiale Inventor after: Li Hongda Inventor before: Tan Wensheng Inventor before: Xu Jiale Inventor before: Li Hongda |
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Effective date of registration: 20230522 Address after: 213000 No.28 Nanhu West Road, Wujin high tech Industrial Development Zone, Changzhou City, Jiangsu Province Patentee after: JIANGSU HIPPO PLASTICS Co.,Ltd. Address before: 213164 No. 2 Mingxin Middle Road, Wujin University Town, Changzhou City, Jiangsu Province Patentee before: CHANGZHOU College OF INFORMATION TECHNOLOGY |