CN112922026A - Novel assembled prefabricated cable inspection well and installation method thereof - Google Patents
Novel assembled prefabricated cable inspection well and installation method thereof Download PDFInfo
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/045—Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location line; Methods of making them
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/045—Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location line; Methods of making them
- E02D29/05—Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location line; Methods of making them at least part of the cross-section being constructed in an open excavation or from the ground surface, e.g. assembled in a trench
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/16—Arrangement or construction of joints in foundation structures
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/06—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against corrosion by soil or water
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Abstract
The invention discloses a novel assembled prefabricated cable inspection well, which is characterized in that: the steel bar reinforced concrete composite cable wire tube is characterized by comprising a base, a straight plate, a straight side plate, a top seat and a top cover, wherein the base, the straight plate, the straight side plate and the top seat are rectangular concrete prefabricated plates, a steel bar framework is buried in the straight side plate, the straight side plate is provided with a left part and a right part, the upper end of the straight side plate is connected with the top seat in a clamped mode, the lower end of the straight side plate is connected with the base in a clamped mode, the straight plate is provided with a front part and a rear part, the upper end of the straight side plate is connected with the top seat in a clamped mode, the lower end of the straight side plate is connected with the base in a clamped mode, the two sides of the straight side. The invention has simple structure and convenient assembly, each part can be prefabricated by using tools in a factory, the standardized, generalized and serialized rapid and efficient production is convenient to carry out, a steel bar framework is embedded in each part, the compression strength and the impact strength of the well body are higher, the service life is long, and the cost is low.
Description
Technical Field
The invention relates to the technical field of cable inspection wells, in particular to a novel assembled prefabricated cable inspection well and an installation method thereof.
Background
The cable inspection well is one of urban road infrastructure, and in the building district or town road construction process, there are pipeline facilities such as many cable telecommunications to bury underground and lay, need construct the inspection well at every certain distance on underground pipeline position, and the cable inspection well generally is the cuboid structure, comprises well body and well lid, and it is used for connecting not equidirectional, not cable and pipeline of co-altitude to for later stage manual inspection and maintenance provide convenience. At present, in order to facilitate the construction, reduction in production cost, large-scale or super large-scale cable inspection shaft all adopts the brick-concrete structure, by the brick-concrete structure of artifical step promptly, though its easy operation, but has more problems: the standardization, generalization and serialization degrees are poor; the brick structure has low supporting strength and impact strength, and poor corrosion resistance and sealing performance; the construction period is long, and the service life is short. The large cable inspection well has the advantages that the large cable inspection well is used in severe environment conditions and is required to bear large pressure and impact force of vehicles on a road surface, the large cable inspection well is large in size, the well body is extruded by surrounding soil and stones, and is easy to deform and break to cause collapse, so that the existing large cable inspection well and the preparation technology thereof cannot well meet the development requirements of the cable inspection well.
Disclosure of Invention
The invention aims to provide a novel assembled prefabricated cable inspection well, which solves the problems that the existing large-scale cable inspection well is poor in standardization, universalization and serialization degrees, low in support strength and impact strength, poor in corrosion resistance and sealing performance, long in construction period, short in service life, and easy to deform and break, and collapse is caused.
In order to achieve the purpose, the invention provides a novel assembled prefabricated cable inspection well, which is characterized in that: the concrete prefabricated slab comprises a base, a straight plate, a straight-through side plate, a top seat and a top cover, wherein the base, the straight plate, the straight-through side plate and the top seat are all rectangular concrete prefabricated slabs, and the concrete strength grade is C40;
two longitudinal trapezoidal through grooves are symmetrically formed in the left side and the right side of the top surface of the base, two transverse trapezoidal grooves are symmetrically formed in the front side and the rear side, and the left end and the right end of each transverse trapezoidal groove are respectively communicated with the corresponding longitudinal trapezoidal through grooves;
the two straight-through side plates are symmetrically clamped in the two longitudinal trapezoidal through grooves at the lower ends, two vertical trapezoidal grooves are symmetrically arranged on the front side and the rear side of one side face of each straight-through side plate opposite to each other, the central lines of the two vertical trapezoidal grooves are respectively aligned with the central lines of the two transverse trapezoidal grooves, and pull rings are arranged at the upper ends of one side face of each straight-through side plate opposite to each other;
the two straight plates are arranged, the lower ends of the two straight plates are respectively clamped in the two transverse trapezoidal grooves, the left and right sides of each straight plate are respectively clamped in the vertical trapezoidal grooves of the straight side plates at the left and right sides, the left and right side surfaces of each straight plate are respectively connected with the bottom surfaces of the corresponding vertical trapezoidal grooves, a first square through hole is arranged in the middle of each straight plate, and the inner circumference size of each first square through hole is matched with the outer shape size of the prefabricated cable spool and used for the longitudinal prefabricated cable spool to pass through;
the left and right bilateral symmetry is equipped with two vertical draw-in grooves on the bottom surface under the footstock, and preceding, back bilateral symmetry are equipped with two horizontal draw-in grooves, horizontal draw-in groove left and right both ends are linked together with corresponding vertical draw-in groove respectively, and two straight board upper ends are blocked respectively and are located two horizontal draw-in grooves in, and two straight curb plate upper ends are blocked respectively and are located two vertical draw-in grooves in, the centre is equipped with circular manhole on the footstock top surface for staff's maintenance entry, circular manhole upper end is equipped with the counter bore, the counter bore is big-end-up's taper hole, the minimum internal diameter and the top cap external diameter of counter bore cooperate, the top cap adopts municipal administration apron, locates in the.
Preferably, the middle of the upper end face of the base is provided with a water collecting hole, and the inner diameter of the water collecting hole is set to be phi 800-900 mm.
Preferably, the cross sections of the longitudinal trapezoidal through groove, the transverse trapezoidal groove, the vertical trapezoidal groove, the transverse clamping groove and the longitudinal clamping groove are uniform in shape and size, the cross sections are isosceles trapezoidal grooves, the taper of the isosceles trapezoidal grooves is set to be 6.5-7.5 degrees, and the depth is set to be 80-90 mm.
Preferably, a second square through hole is formed in the middle of at least one of the two through side plates, and the inner circumference size of the second square through hole is matched with the outer shape size of the prefabricated cable conduit and used for the transverse prefabricated cable conduit to penetrate through.
Preferably, a first double-layer steel bar framework is embedded in the base; a second double-layer steel bar framework is embedded in the top seat; a first single-layer steel bar net rack is embedded in the straight plate; a second single-layer steel bar net rack is embedded in the through side plate, and the pull ring is fixedly connected with the second single-layer steel bar net rack.
Preferably, the first double-layer steel bar framework and the second double-layer steel bar framework both adopt HRB400 threaded steel bars with the diameter of ∅ 10mm, and the steel bars are spaced by 170-220 mm; first individual layer reinforcing bar rack, second individual layer reinforcing bar rack all adopt HRB400 diameter ∅ 10 mm's twisted steel, and the reinforcing bar interval is 140 ~ 180 mm.
Preferably, two round nuts are embedded in the upper end faces of the straight-through side plates and the straight plates; round nuts are embedded at four corners of the upper end surfaces of the top seat and the base; the inner thread of the round nut is set to be M16, the length of the round nut is set to be 80-100 mm, and the round nut is used for installing a lifting ring.
The invention also provides an installation method of the novel assembled prefabricated cable inspection well, which is characterized by comprising the following steps of:
s1, mounting a base: tamping and leveling the bottom of an inspection well installation pit, placing a base into the pit, and leveling;
s2, mounting two through side plates: the lower ends of the two straight-through side plates are respectively clamped with the two longitudinal trapezoidal through grooves, so that one surfaces of the two straight-through side plates, which are provided with vertical trapezoidal grooves, are oppositely placed, the outer side surfaces of the lower parts of the straight-through side plates are installed by the outer side edges of the corresponding longitudinal trapezoidal through grooves, and the central lines of the vertical trapezoidal grooves of the straight-through side plates are aligned with the central lines of the transverse trapezoidal grooves of the base;
s3, mounting two straight plates: the lower ends of two straight plates are respectively clamped with two transverse trapezoidal grooves, the left side and the right side of each straight plate are respectively clamped with the corresponding vertical trapezoidal grooves, and then pull rings which are directly connected to the upper ends of the side plates are pulled to enable the left side surface and the right side surface of each straight plate to be respectively connected with the bottom surfaces of the corresponding vertical trapezoidal grooves;
s4, mounting a top seat: sleeving the top seat on the upper ends of the straight-through side plates and the straight plates, so that the longitudinal clamping grooves of the top seat are clamped with the upper ends of the straight-through side plates, and the transverse clamping grooves are clamped with the upper ends of the straight plates;
and S5, covering a top cover.
Compared with the prior art, the invention has the beneficial effects that: 1) the structure is simple, the assembly is convenient, the cost of raw materials is low, all parts can be prefabricated by using tools in a factory, and the standardized, generalized and serialized rapid and efficient production is convenient to carry out; 2) in a factory, each rectangular part is prefabricated according to the size of a well body, so that transportation and site construction are facilitated, large or ultra-large composite cable inspection wells with different specifications can be conveniently produced, the production and transportation cost is reduced, and the problems of low efficiency, high cost, lack of standardization and control, inconvenience and complexity caused by site construction and the like of the existing large power inspection well preparation technology are solved; 3) a steel bar framework or a steel bar net rack is embedded in each part, so that the well body has higher compression strength and impact strength; and the well body is corrosion-resistant, the sealing performance is good, the service life is long, and the problem that the existing inspection well body is easy to deform and break to cause collapse is effectively solved.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a cross-sectional view of an embodiment of the present invention;
FIG. 3 is a longitudinal cross-sectional view of an embodiment of the present invention;
FIG. 4 is a schematic view of a bottom structure of a top base according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of a through-side plate structure according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of a straight plate structure according to an embodiment of the present invention;
FIG. 7 is a schematic diagram of a top structure of a base according to an embodiment of the present invention;
FIG. 8 is a schematic view of a trapezoidal groove structure according to an embodiment of the present invention;
FIG. 9 is a schematic view of a connection structure of a prefabricated cable conduit according to an embodiment of the present invention;
FIG. 10 is a schematic structural diagram of a second embodiment of the present invention;
FIG. 11 is a schematic structural view of a second through side plate according to an embodiment of the present invention;
fig. 12 is a schematic view of the connection structure between the second embodiment of the present invention and the prefabricated cable conduit.
In the figure: 1. a footstock, 101, vertical draw-in groove, 102, horizontal draw-in groove, 103, circular manhole, 104, first counter bore, 105, the double-deck steel reinforcement frame of second, 2, the top cap, 3, direct curb plate, 301, vertical dovetail groove, 302, the pull ring, 303, the second individual layer steel reinforcement net rack, 304, the square through hole of second, 4, the straight board, 401, the first square through hole, 402, the first individual layer steel reinforcement net rack, 5, the base, 501, vertical trapezoidal logical groove, 502, horizontal dovetail groove, 503, the water collecting hole, 504, the first double-deck steel reinforcement frame, 6, the round nut, 7, prefabricated cable spool.
Detailed Description
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "longitudinal", "lateral", "transverse", and the like, indicate orientations and positional relationships based on those shown in the drawings, are used for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
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, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
As shown in fig. 1 to 9, an embodiment of the invention includes a base 5, a straight plate 4, a through side plate 3, a top seat 1 and a top cover 2, wherein the base 5, the straight plate 4, the through side plate 3 and the top seat 1 are all rectangular concrete precast slabs, and the concrete strength grade is C40;
two longitudinal trapezoidal through grooves 501 are symmetrically arranged on the left side and the right side of the top surface of the base 5, two transverse trapezoidal grooves 502 are symmetrically arranged on the front side and the rear side, the left end and the right end of each transverse trapezoidal groove 502 are respectively communicated with the corresponding longitudinal trapezoidal through grooves 501, and a first double-layer steel bar framework 504 is embedded in the base 5;
the two straight-through side plates 3 are symmetrically clamped in the two longitudinal trapezoidal through grooves 501 at the lower ends, two vertical trapezoidal grooves 301 are symmetrically arranged on the front side and the rear side of one side face of each of the two straight-through side plates 3, the center lines of the two vertical trapezoidal grooves 301 are respectively aligned with the center lines of the two transverse trapezoidal grooves 502, a second single-layer reinforcing steel bar net rack 303 is embedded in each straight-through side plate 3, pull rings 302 are arranged at the upper ends of the opposite side faces of the two straight-through side plates 3, and the pull rings 302 are fixedly connected with the second single-layer reinforcing steel bar net rack;
the two straight plates 4 are respectively clamped in the two transverse trapezoidal grooves 502 at the lower ends, the left and right sides of each straight plate 4 are respectively clamped in the vertical trapezoidal grooves 301 of the through side plates 3 at the left and right sides, the left and right side surfaces of each straight plate 4 are respectively connected with the bottom surfaces of the corresponding vertical trapezoidal grooves 301, a first square through hole 401 is arranged in the middle of each straight plate 4, the inner circumference size of each first square through hole 401 is matched with the outer shape size of a prefabricated cable conduit and used for the longitudinal prefabricated cable conduit to pass through, and a first single-layer reinforcing steel bar net rack 402 is embedded in each straight plate 4;
the left side and the right side of the lower bottom surface of the top seat 1 are symmetrically provided with two longitudinal clamping grooves 101, the front side and the rear side of the top seat are symmetrically provided with two transverse clamping grooves 102, the left end and the right end of each transverse clamping groove 102 are respectively communicated with the corresponding longitudinal clamping grooves 101, the upper ends of two straight plates 4 are respectively clamped in the two transverse clamping grooves 102, the upper ends of two straight side plates 3 are respectively clamped in the two longitudinal clamping grooves 101, the middle of the top surface of the top seat 101 is provided with a circular manhole 103, the inner diameter of the circular manhole is set to be phi 800mm and used for maintenance entry of workers, the upper end of the circular manhole 103 is provided with a counter bore 104, the counter bore 104 is a taper hole with a large upper part and a small lower part, the taper gamma is set to be 9-10 degrees, the minimum inner diameter of the counter bore 104 is matched with the outer diameter of.
The middle of the upper end surface of the base 5 is provided with a water collecting hole 503, and the inner diameter of the water collecting hole 503 is phi 800 mm.
Two round nuts 6 are embedded in the upper end surfaces of the straight-through side plates 3 and the straight plates 4; round nuts 6 are embedded at the four corners of the upper end surfaces of the top seat 1 and the base 5; the internal thread of the round nut 6 is set to be M16, the length is set to be 100mm, and the round nut 6 is used for installing the lifting ring and is convenient to transport and install.
Preferably, the cross sections and the sizes of the longitudinal trapezoidal through groove 501, the transverse trapezoidal groove 502, the vertical trapezoidal groove 301, the transverse clamping groove 102 and the longitudinal clamping groove 101 are all consistent and are all set to be isosceles trapezoidal grooves, the taper alpha of each isosceles trapezoidal groove is set to be 7.1 degrees, the upper opening width of each isosceles trapezoidal groove is 155mm, the lower bottom width is 145mm, and the depth is 80 mm; and arc transition angles are arranged on two sides of the groove bottom of the isosceles trapezoid groove, and the radius of the arc transition angles is R8 mm.
Preferably, the first double-layer steel bar framework 504 and the second double-layer steel bar framework 105 both adopt HRB400 threaded steel bars with the diameter of ∅ 10mm, and the steel bars are spaced by 170-220 mm; first individual layer reinforcing bar rack 402, second individual layer reinforcing bar rack 303 all adopt HRB400 diameter ∅ 10 mm's twisted steel, and the reinforcing bar interval is 140 ~ 180 mm.
As shown in fig. 10 to 12, the second embodiment of the present invention is used for arranging a crisscross path in a prefabricated cable conduit, and is basically the same as the first embodiment, except that:
the middle of the two through side plates 3 is provided with a second square through hole 304, and the inner dimension of the second square through hole 304 is matched with the outer dimension of the prefabricated cable conduit for the transverse prefabricated cable conduit to pass through.
The installation method of the embodiment of the invention comprises the following steps:
s1, mounting base 5: tamping and leveling the bottom of an inspection well installation pit, placing a base 5 into the pit, and leveling;
s2, installing two through side plates 3: the lower ends of two straight-through side plates 3 are respectively clamped with two longitudinal trapezoidal through grooves 501, one surfaces of the two straight-through side plates 3, which are provided with vertical trapezoidal grooves 301, are oppositely placed, the outer side surfaces of the lower parts of the straight-through side plates 3 are arranged by the outer side edges of the corresponding longitudinal trapezoidal through grooves 501, and the central lines of the vertical trapezoidal grooves 301 of the straight-through side plates 3 are aligned with the central lines of the transverse trapezoidal grooves 502 of the base 5;
s3, mounting two straight plates 4: the lower ends of two straight plates 4 are respectively clamped with two transverse trapezoidal grooves 502, the left side and the right side are respectively clamped with corresponding vertical trapezoidal grooves 301, and then a pull ring 302 which is directly connected to the upper ends of the side plates 3 is pulled, so that the left side surface and the right side surface of each straight plate 4 are respectively connected with the bottom surfaces of the corresponding vertical trapezoidal grooves 301;
s4, mounting the top seat 1: sleeving the top seat 1 on the upper ends of the straight-through side plates 3 and the straight plates 4, so that the longitudinal clamping grooves 101 of the top seat 1 are clamped with the upper ends of the straight-through side plates 3, and the transverse clamping grooves 102 are clamped with the upper ends of the straight plates 4;
and S5, covering the top cover 2.
The embodiment of the invention has simple structure, convenient assembly and low cost of raw materials, all parts can be prefabricated by using tools in a factory, and the invention can carry out standardized, generalized and serialized quick and efficient production, is convenient for transportation and installation and reduces the production and transportation cost; inside steel bar framework or the steel bar net rack of all having buried underground of each part, well body resistance to compression and shock strength are higher, have effectively solved the easy deformation fracture of current inspection shaft well body, cause the problem of collapsing.
The above description is only exemplary of the present invention and should not be taken as limiting the invention, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.
Claims (8)
1. The utility model provides a novel assembled prefabricated cable inspection shaft which characterized in that: the concrete prefabricated slab comprises a base, a straight plate, a straight-through side plate, a top seat and a top cover, wherein the base, the straight plate, the straight-through side plate and the top seat are all rectangular concrete prefabricated slabs, and the concrete strength grade is C40;
two longitudinal trapezoidal through grooves are symmetrically formed in the left side and the right side of the top surface of the base, two transverse trapezoidal grooves are symmetrically formed in the front side and the rear side, and the left end and the right end of each transverse trapezoidal groove are respectively communicated with the corresponding longitudinal trapezoidal through grooves;
the two straight-through side plates are symmetrically clamped in the two longitudinal trapezoidal through grooves at the lower ends, two vertical trapezoidal grooves are symmetrically arranged on the front side and the rear side of one side face of each straight-through side plate opposite to each other, the central lines of the two vertical trapezoidal grooves are respectively aligned with the central lines of the two transverse trapezoidal grooves, and pull rings are arranged at the upper ends of one side face of each straight-through side plate opposite to each other;
the two straight plates are arranged, the lower ends of the two straight plates are respectively clamped in the two transverse trapezoidal grooves, the left and right sides of each straight plate are respectively clamped in the vertical trapezoidal grooves of the straight side plates at the left and right sides, the left and right side surfaces of each straight plate are respectively connected with the bottom surfaces of the corresponding vertical trapezoidal grooves, a first square through hole is arranged in the middle of each straight plate, and the inner circumference size of each first square through hole is matched with the outer shape size of the prefabricated cable spool and used for the longitudinal prefabricated cable spool to pass through;
the left and right bilateral symmetry is equipped with two vertical draw-in grooves on the bottom surface under the footstock, and preceding, back bilateral symmetry are equipped with two horizontal draw-in grooves, horizontal draw-in groove left and right both ends are linked together with corresponding vertical draw-in groove respectively, and two straight board upper ends are blocked respectively and are located two horizontal draw-in grooves in, and two straight curb plate upper ends are blocked respectively and are located two vertical draw-in grooves in, the centre is equipped with circular manhole on the footstock top surface for staff's maintenance entry, circular manhole upper end is equipped with the counter bore, the counter bore is big-end-up's taper hole, the minimum internal diameter and the top cap external diameter of counter bore cooperate, the top cap adopts municipal administration apron, locates in the.
2. The novel assembled prefabricated cable inspection well according to claim 1, characterized in that: the middle of the upper end face of the base is provided with a water collecting hole, and the inner diameter of the water collecting hole is set to be phi 800-900 mm.
3. The novel assembled prefabricated cable inspection well according to claim 2, characterized in that: the cross sections of the longitudinal trapezoidal through grooves, the transverse trapezoidal grooves, the vertical trapezoidal grooves, the transverse clamping grooves and the longitudinal clamping grooves are uniform in shape and size, the cross sections are all designed to be isosceles trapezoidal grooves, the taper of the isosceles trapezoidal grooves is set to be 6.5-7.5 degrees, and the depth is set to be 80-90 mm.
4. The novel assembled prefabricated cable inspection well according to claim 1, characterized in that: and at least one of the two through side plates is provided with a second square through hole in the middle, and the inner dimension of the second square through hole is matched with the outer dimension of the prefabricated cable wire pipe and used for the transverse prefabricated cable wire pipe to pass through.
5. The novel assembled prefabricated cable inspection well according to claim 1, characterized in that: a first double-layer steel bar framework is embedded in the base; a second double-layer steel bar framework is embedded in the top seat; a first single-layer steel bar net rack is embedded in the straight plate; a second single-layer steel bar net rack is embedded in the through side plate, and the pull ring is fixedly connected with the second single-layer steel bar net rack.
6. The novel assembled prefabricated cable inspection well according to claim 5, characterized in that: the first double-layer steel bar framework and the second double-layer steel bar framework are both made of HRB400 threaded steel bars with the diameter of ∅ 10mm, and the steel bar intervals are 170-220 mm; first individual layer reinforcing bar rack, second individual layer reinforcing bar rack all adopt HRB400 diameter ∅ 10 mm's twisted steel, and the reinforcing bar interval is 140 ~ 180 mm.
7. The novel assembled prefabricated cable manhole according to any one of claims 1 to 6, wherein: two round nuts are embedded in the upper end surfaces of the straight-through side plates and the straight plates; round nuts are embedded at four corners of the upper end surfaces of the top seat and the base; the inner thread of the round nut is set to be M16, the length of the round nut is set to be 80-100 mm, and the round nut is used for installing a lifting ring.
8. The novel assembly type prefabricated cable manhole installation method of any one of claims 1 to 7, comprising the following steps:
s1, mounting a base: tamping and leveling the bottom of an inspection well installation pit, placing a base into the pit, and leveling;
s2, mounting two through side plates: the lower ends of the two straight-through side plates are respectively clamped with the two longitudinal trapezoidal through grooves, so that one surfaces of the two straight-through side plates, which are provided with vertical trapezoidal grooves, are oppositely placed, the outer side surfaces of the lower parts of the straight-through side plates are installed by the outer side edges of the corresponding longitudinal trapezoidal through grooves, and the central lines of the vertical trapezoidal grooves of the straight-through side plates are aligned with the central lines of the transverse trapezoidal grooves of the base;
s3, mounting two straight plates: the lower ends of two straight plates are respectively clamped with two transverse trapezoidal grooves, the left side and the right side of each straight plate are respectively clamped with the corresponding vertical trapezoidal grooves, and then pull rings which are directly connected to the upper ends of the side plates are pulled to enable the left side surface and the right side surface of each straight plate to be respectively connected with the bottom surfaces of the corresponding vertical trapezoidal grooves;
s4, mounting a top seat: sleeving the top seat on the upper ends of the straight-through side plates and the straight plates, so that the longitudinal clamping grooves of the top seat are clamped with the upper ends of the straight-through side plates, and the transverse clamping grooves are clamped with the upper ends of the straight plates;
and S5, covering a top cover.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115125998A (en) * | 2022-06-08 | 2022-09-30 | 上海策元实业有限公司 | Cable shaft structure |
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2021
- 2021-01-29 CN CN202110130486.0A patent/CN112922026A/en active Pending
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| GB2455788A (en) * | 2007-12-21 | 2009-06-24 | Mitras Composites Uk Ltd | Modular inspection chamber with interlocking walls |
| CN207760886U (en) * | 2018-01-10 | 2018-08-24 | 国网天津市电力公司 | Demountable assemble type street lamp post cable shaft |
| CN108331024A (en) * | 2018-02-08 | 2018-07-27 | 杭州建工建材有限公司 | A kind of assembled rectangle inspection well and its installation method |
| CN108331026A (en) * | 2018-04-28 | 2018-07-27 | 福建鸿生高科环保科技有限公司 | A kind of prefabricated assembling type reinforced concrete inspection shaft and its construction method |
| CN210658456U (en) * | 2019-08-09 | 2020-06-02 | 昌大建筑科技有限公司 | Prefabricated cable worker well |
| CN111501839A (en) * | 2020-05-12 | 2020-08-07 | 启晗电力建设集团有限公司 | Cable shaft |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115125998A (en) * | 2022-06-08 | 2022-09-30 | 上海策元实业有限公司 | Cable shaft structure |
| CN115125998B (en) * | 2022-06-08 | 2024-01-12 | 上海策元实业有限公司 | Cable well structure |
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Application publication date: 20210608 |