CN113078605B - Nested working well and wire arranging method thereof - Google Patents
Nested working well and wire arranging method thereof Download PDFInfo
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- CN113078605B CN113078605B CN202110331036.8A CN202110331036A CN113078605B CN 113078605 B CN113078605 B CN 113078605B CN 202110331036 A CN202110331036 A CN 202110331036A CN 113078605 B CN113078605 B CN 113078605B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G9/00—Installations of electric cables or lines in or on the ground or water
- H02G9/06—Installations of electric cables or lines in or on the ground or water in underground tubes or conduits; Tubes or conduits therefor
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H5/00—Buildings or groups of buildings for industrial or agricultural purposes
- E04H5/02—Buildings or groups of buildings for industrial purposes, e.g. for power-plants or factories
- E04H5/06—Pits or building structures for inspection or services
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Abstract
A nested working well and winding displacement method thereof, the nested working well includes a top plate, an outer well wall, a well bottom ground and an inner well wall, the well bottom ground is a rectangle, four corners of the rectangle are right-angle chamfer structures, the outer well wall is vertically arranged and surrounds the well bottom ground for a circle, the outer well wall comprises 4 wall surfaces, the top plate and the top end of the outer well wall are integrally cast and connected to enclose an inner well space, a plurality of manholes and ventilation holes are formed in the top plate, the well bottom ground is provided with the inner well wall to isolate the inner well space into the inner well space and the outer well space and form an nested structure of the well in the well, a power cable access is designed on the inner wall of the inner well wall for laying power cables to enter and exit the inner well space, and the outer well wall is provided with a power cable through pipe hole seat; therefore, the invention can overcome the defects of the prior art, improve the laying effect, facilitate laying, overhauling, operation and maintenance operation and improve the safety performance.
Description
Technical Field
The invention relates to the technical field of cable laying well structures, in particular to a nested working well and a cable arranging method thereof.
Background
As cities develop, more and more cables are laid in underground spaces, and the laying technology needs to arrange cable wells at intervals for overhauling, operating and maintaining the cables. The traditional cable well adopts a strong electric well and a weak electric well which are respectively and independently designed, manufactured and used, so that not only is more resource consumption, but also unified management and operation and maintenance of underground cables are not utilized. For example, a comprehensive pipe trench cross-shaped intersection with the publication number of CN201437729U is similar to a cable well, the intersection is openly connected with four comprehensive pipe trenches in four directions, and a pipeline can turn in each direction without influencing the same movement of normal personnel; however, the above-mentioned technology can not separate the cables of different types in space, and there are the defects that strong and weak cables cross, influence each other, and the operation and maintenance work is not independent.
Therefore, in view of the above-mentioned drawbacks, the present inventors have conducted extensive research and design to overcome the above-mentioned drawbacks by integrating the experience and results of related industries for many years.
Disclosure of Invention
The invention aims to provide a nested working well and a wire arranging method thereof, which can overcome the defects of the prior art, improve the laying effect, facilitate laying, overhauling, operation and maintenance and improve the safety performance.
In order to achieve the purpose, the invention discloses a nested working well, which comprises a top plate, an outer well wall, a well bottom ground surface and an inner well wall, and is characterized in that:
the well bottom ground is made of reinforced concrete poured on a foundation, the well bottom ground is rectangular, four corners of the rectangle are of right-angle chamfer structures, the outer well wall is vertically arranged and surrounds the well bottom ground for a circle, the outer well wall comprises 4 wall surfaces, the top plate and the well bottom ground are of the same plane structure, the top plate covers the space surrounded by the whole outer well wall, the top plate and the top end of the outer well wall are integrally poured and connected to form a well space, a plurality of manholes and ventilation holes are formed in the top plate, and the manholes and the ventilation holes penetrate through the inside and the outside of the well;
an inner well wall is arranged on the ground of the well bottom, the inner well wall comprises 4 inner wall surfaces, a right-angle chamfer structure is designed between every two adjacent inner wall surfaces, and the 4 inner wall surfaces of the inner well wall are correspondingly parallel to the 4 wall surfaces of the outer well wall, so that the space in the well is isolated into an inner well space and an outer well space, and a nested structure of the well in the well is formed;
the inner wall surface of the inner well wall is provided with a power cable inlet and outlet for laying a power cable to enter and exit the inner well space, and the outer well wall is provided with a power cable pipe penetrating hole seat.
Wherein: the manhole sets up to 3, and the manhole at center is located well space directly over, and the manhole of roof chamfer inboard is located well space's top outward, and the ventilation hole is located well space directly over.
Wherein: the inner well wall is characterized in that one or more power cable inlets and outlets are formed in 4 inner wall surfaces of the inner well wall, one or more power cable tube penetrating hole seats are formed in 4 wall surfaces of the outer well wall, the number of the power cable tube penetrating hole seats is equal to that of the power cable inlets and outlets, and the power cable tube penetrating hole seats in the same direction are aligned with the positions of the power cable inlets and outlets.
Wherein: the power cable pipe penetrating seat is positioned at the lower part of the outer well wall, the specific height of the power cable pipe penetrating seat is matched with the height of the position of an outdoor cable inlet, a plurality of layers of through holes are formed in the power cable pipe penetrating seat, the number of the layers of the through holes is matched with the number of layers of outdoor cable inlets, a plurality of through holes are formed in each layer, the number of the through holes in each layer is matched with the number of the inlets of the corresponding outdoor cable inlets, and the tail end of a power cable pipe penetrates into the plurality of layers of through holes of the power cable pipe penetrating seat and is flush with the inner wall of the outer well wall;
the design has the isolation groove between power cable poling hole seat and the power cable access & exit in same position, the isolation groove design is the shape of falling U, the isolation groove back-off is on the shaft bottom ground in outer well space and with the fixed piecing together of shaft bottom ground, an end face and the wall connection of the outer wall of a well that corresponds of isolation groove, another end face and the outer wall connection of the interior well wall that corresponds of isolation groove, formed interior well passageway between isolation groove inner chamber and the shaft bottom ground, interior well passageway intercommunication interior well space and outer space of well, interior well passageway is used for power cable business turn over interior well space.
Wherein: the both sides face of isolation groove all is provided with the staircase so that personnel can cross the isolation groove.
Wherein: the power cable bent frames are arranged on the ground of the bottom of the well in the inner well space, and a plurality of power cable bent frames are arranged and are respectively positioned at the entrance and the exit of the power cable or between the two adjacent entrances and exits of the power cable to erect the power cable.
Wherein: the power cable bent is fixedly arranged on the ground of the shaft bottom in the inner well space through expansion bolts, the power cable bent is of a multilayer structure, the number of layers of the power cable bent is matched with the number of layers of through holes in the power cable pipe penetrating hole seat, the height of each layer of the power cable bent is matched with the height of each layer of through holes in the power cable pipe penetrating hole seat, and power cables are laid on the power cable bent in the well.
Wherein: be provided with the communication line poling hole seat on the outer wall of a well, communication line poling hole seat is located the upper portion of the outer wall of a well, the concrete height of communication line poling hole seat and the high phase-match of outer inlet wire position, be provided with the multilayer through-hole on the communication line poling hole seat, the number of piles phase-match of through-hole number and outer inlet wire, the through-hole sets to loudspeaker form and disperses towards the direction in the well, every layer of through-hole is provided with a plurality ofly, the quantity of every layer of through-hole and the inlet wire quantity phase-match that corresponds the inlet wire layer outside the well, the end of communication line poling penetrates the through-hole inside and with the inner wall parallel and level of the outer wall of a well, all set up one or more communication line poling hole seats on 4 walls of the outer wall of a well.
Wherein: the communication line bent is arranged on the inner surface of the outer well wall, the communication line bent is provided with a plurality of communication line bent frames which are distributed on the inner side of the outer well wall for one circle, the communication line bent frames are fixedly arranged on the inner surface of the outer well wall through expansion bolts and are of a multilayer structure, the number of layers of the communication line bent frames is matched with the number of layers of through holes in the communication line pipe penetrating hole seats, and the height of each layer of the communication line bent frames is matched with the height of each layer of through holes in the communication line pipe penetrating hole seats.
Also discloses a wire arranging method of the nested working well, which is characterized by comprising the following steps:
the method comprises the following steps: completing the manufacture of the nested working well;
step two: laying a power cable;
step three: laying a communication line;
wherein, laying operation personnel enter the outer well space through the manhole to carry out laying operation, communication lines are laid into the well through the communication line through pipes and the through holes on the communication line through pipe hole seats, the communication lines are laid on the communication line bent frames in layers according to the positions of the communication lines in the manhole, the communication lines are laid on the laying layers with corresponding heights on the communication line bent frames and are bound and fixed, the communication lines are laid in a rotating mode around the center of the well along the anticlockwise direction after being laid into the well, the communication lines are laid in an island-shaped laying mode in the well until being laid to the outlet in a rotating mode, the communication lines are laid out of the well through the through holes on the communication line through pipe hole seats and the communication line through pipes to realize orderly laying of the wires in the well, the conventional operations such as searching, overhauling and the like are convenient, a plurality of turns of standby communication lines are laid around the center of the well before the communication lines are laid out of the well, the communication lines are laid on the upper part of the outer well space, thus, the power cable and the communication line are laid in the same nested working well and are isolated from each other.
From the above, the nested working well and the wire arranging method thereof of the invention have the following effects:
(1) the nested cable well designed by the invention can realize that the power cable and the communication cable are laid in the same working well, is convenient for construction and centralized management, simultaneously avoids manufacturing a plurality of wells, and reduces the occupation of underground space.
(2) According to the invention, the power cable with a larger turning radius is designed to be laid in the inner well space, so that the laying influence of too small turning angle in the outer well space is avoided.
(3) According to the invention, the power cable is laid in the inner well space of the well body, the communication cable is laid in the outer well space of the well body, the inner well space and the outer well space are physically isolated, and the cables with strong and weak currents are not crossed with each other, and the overhauling and operation and maintenance operation surfaces are not crossed, so that the laying, overhauling and operation and maintenance operations are convenient; when the cable breaks down, electric power, communication cable do not influence each other, reduce accident influence scope.
(4) The invention is provided with a plurality of manholes to meet the requirement that people enter different operation spaces. In addition, when people enter the well from a certain manhole for operation, other manholes can also be used as mechanical air exhaust channels, and the air exhaust holes and the people channels are not crossed with each other, so that the safety is improved.
The details of the present invention can be obtained from the following description and the attached drawings.
Drawings
FIG. 1 shows a schematic diagram of the nested work well of the present invention.
Fig. 2 shows an internal schematic of the invention.
Reference numerals:
1. the manhole comprises a top plate, 2 parts of a manhole, 3 parts of an outer well wall, 4 parts of a power cable pipe penetrating hole seat, 5 parts of a power cable pipe penetrating, 6 parts of a communication line pipe penetrating, 7 parts of a communication line pipe penetrating hole seat, 8 parts of a well bottom ground, 9 parts of a power cable bent frame, 10 parts of a power cable, 11 parts of a communication line bent frame, 12 parts of a communication line, 13 parts of an inner well wall, 14 parts of an escalator, 15 parts of a power cable inlet and outlet, 16 parts of an isolation groove, 17 parts of an inner well channel, 18 parts of an inner well space, 19 parts of an outer well space and 20 parts of a vent hole.
Detailed Description
Referring to fig. 1 and 2, the nested work well and its wireline method of the present invention are shown.
The nested working well comprises a top plate 1, an outer well wall 3, a well bottom ground 8 and an inner well wall 13, wherein the well bottom ground 8 is reinforced concrete with a certain thickness and is directly formed on a foundation in a pouring mode, the well bottom ground 8 plays a role in supporting the whole body, the well bottom ground 8 is rectangular, four corners of the rectangle are in a right-angle chamfer structure, the outer well wall 3 is a reinforced concrete structure with a certain wall thickness, the outer well wall 3 is vertically arranged and surrounds the well bottom ground for 8 circles, the bottom end of the outer well wall 3 is integrally poured and formed with the well bottom ground 8 and is connected in a sealing mode, the outer well wall 3 comprises 4 wall surfaces, the top plate 1 is a reinforced concrete structure with a certain wall thickness, the shape of the top plate 1 is the same as that of the well bottom ground 8 in a plane structure, the top plate 1 covers a space surrounded by the whole outer well wall 3, and the top plate 1 is integrally poured and connected with the top end of the outer well wall 3, so that the top plate 1 and the top plate 1 are in a certain wall thickness, The outer well wall 3 and the shaft bottom ground 8 enclose the well space together, be provided with a plurality of manholes 2 and ventilation hole 20 on the roof 1, manhole 2 and ventilation hole 20 all run through inside and outside the well.
Wherein, the manhole 2 sets up to 3, and 3 manholes 2 distribute on the diagonal of roof 1 along the straight line, and the manhole 2 in the middle is located the roof 1 center, and the manhole 2 at both ends is located the relative inside of chamfer of roof 1.
Wherein, be provided with interior wall of a well 13 on the shaft bottom ground 8, interior wall of a well 13 contains 4 internal faces and designs for right angle chamfer structure between per two adjacent internal faces to avoid the cable to turn straight and bend, 4 internal faces of interior wall of a well 13 correspond 4 walls that are on a parallel with outer wall of a well 3, interior wall of a well 13 is whole for closed ring, the bottom and the shaft bottom ground 8 of interior wall of a well 13 link to each other integratively, and upper portion links together with roof 1, thereby keeps apart the well inner space through interior wall of a well 13 for interior well space 18 and outer well space 19, forms the nested structure of well in the well.
Wherein, the design has power cable access & exit 15 on the internal wall face of interior wall of a well 13, and preferably, all can set up one or more power cable access & exit 15 as required on 4 internal wall faces of interior wall of a well 13, and power cable access & exit 15 is used for laying power cable 10 in order to pass in and out interior well space 18.
Wherein, the manhole 2 in the center of the top plate 1 is positioned right above the inner well space 18, the manhole 2 at the inner side of the chamfer of the top plate 1 is positioned above the outer well space 19, 2 manholes 2 communicated with the outer well space 19 are used for entering people and the other can be used for ventilation, the vent hole 20 is positioned right above the inner well space 18, and the vent hole 20 is used for ventilation of the inner well space 18.
Wherein, a power cable pipe-penetrating hole seat 4 is arranged on the outer well wall 3, the power cable pipe-penetrating hole seat 4 is positioned at the lower part of the outer well wall 3, the specific height of the power cable pipe-penetrating hole seat 4 is matched with the height of the position of an outdoor cable inlet, a plurality of layers of through holes are arranged on the power cable pipe-penetrating hole seat 4, the number of the through holes is matched with the number of the outdoor cable inlet, a plurality of through holes are arranged on each layer, the number of the through holes on each layer is matched with the number of the inlets of the corresponding outdoor cable inlet, the tail end of the power cable pipe-penetrating 5 penetrates into the plurality of layers of the through holes of the power cable pipe-penetrating seat 4 and is flush with the inner wall of the outer well wall 3, the diameter of the power cable pipe-penetrating 5 is matched with the diameter of the through holes of the power cable pipe-penetrating seat 4, preferably, one or more power cable pipe-penetrating hole seats 4 can be arranged on the 4 wall surfaces of the outer well wall 3 as required, the number of the power cable pipe-penetrating seats 4 is equal to the inlets and outlets 15 of the power cable, the power cable pipe-penetrating seat 4 in the same direction is aligned with the power cable entrance 15, an isolation groove 16 is designed between the power cable pipe-penetrating seat 4 and the power cable entrance 15 in the same direction, the isolation groove 16 is designed into an inverted U shape, the isolation groove 16 is inverted on the shaft bottom ground 8 of an outer well space 19 and fixedly spliced with the shaft bottom ground 8, one end face of the isolation groove 16 is connected with the wall face of the corresponding outer well wall 3, the other end face of the isolation groove 16 is connected with the outer wall face of the corresponding inner well wall 13, an inner well channel 17 is formed between the inner cavity of the isolation groove 16 and the shaft bottom ground 8, the inner well channel 17 is communicated with the inner well space 18 and the outer well space, the inner well channel 17 is used for enabling the power cable 10 to enter and exit the inner well space 18, two side faces of the isolation groove 16 are provided with escalators 14, and the escalators 14 are used for people to climb over the isolation groove 16.
The power cable bent frame 9 is arranged on the ground 8 at the bottom of the well in the inner well space 18, a plurality of power cable bent frames 9 are arranged and are respectively positioned at the power cable access 15 or between two adjacent power cable accesses 15, and the power cable bent frames 9 are used for erecting power cables 10.
The communication line through pipe hole seat 7 is arranged on the outer well wall 3, the communication line through pipe hole seat 7 is located on the upper portion of the outer well wall 3, the specific height of the communication line through pipe hole seat 7 is matched with the height of an outer well incoming line position, multiple layers of through holes are formed in the communication line through pipe hole seat 7, the number of the through holes is matched with the number of the layers of the outer well incoming lines, the through holes are arranged in a horn shape and are diverged towards the direction in the well, multiple through holes are formed in each layer, the number of the through holes in each layer is matched with the number of the incoming lines of the corresponding outer well line layer, the tail end of the communication line through pipe 6 penetrates into the through holes and is flush with the inner wall of the outer well wall 3, the diameter of the communication line through pipe 6 is matched with the diameter of the through holes in the communication line through pipe hole seat 7, and one or multiple communication line through pipe hole seats 7 can be arranged on 4 wall surfaces of the outer well wall 3 as required;
the communication line bent 11 is arranged on the inner surface of the outer well wall 3, the plurality of communication line bent 11 are arranged, and the plurality of communication line bent 11 are distributed on the inner side of the outer well wall 3 in a circle.
Furthermore, a power cable bent frame 9 is fixedly arranged on a shaft bottom ground 8 of the inner well space 18 through expansion bolts, the power cable bent frame 9 is of a multilayer structure, the number of layers of the power cable bent frame 9 is matched with the number of layers of through holes in the power cable pipe penetrating hole seat 4, the height of each layer of the power cable bent frame 9 is matched with the height of each layer of through holes in the power cable pipe penetrating hole seat 4, and a power cable 10 is laid on the power cable bent frame 9 in the well.
Further, a power cable bent 11 is arranged in the inner well channel and used for erecting a power cable 10.
Furthermore, the communication line bent 11 is fixedly arranged on the inner surface of the outer well wall 3 through expansion bolts, the communication line bent 11 is of a multilayer structure, the number of layers of the communication line bent 11 is matched with the number of layers of through holes in the communication line pipe penetrating hole seat 7, and the height of each layer of the communication line bent 11 is matched with the height of each layer of through holes in the communication line pipe penetrating hole seat 7.
Furthermore, the communication line bent 11 sets up to 16, distributes 2 on every outer wall of a well 3, and 2 on every outer wall of a well 3 chamfer face.
Further, 4 power cable bent frames 9 are provided.
Specifically, the power cable 10 and the communication line 12 share the same working well, the power cable 10 is laid in the inner well space 18, and the communication line 12 is laid in the outer well space 19.
Further, the power cable 10 is laid into the well through the through holes on the power cable through pipe 5 and the power cable through pipe hole seat 4, then enters the inner well space 18 through the inner well channel 17 to complete entering the well, the power cable 10 is laid on the power cable bent frame 9 in layers after entering the well, according to the position of the power cable access 15 where the power cable 10 is located, the power cable 10 is laid on the laying layer with the corresponding height on the power cable bent frame 9 and is bound and fixed, the power cable 10 can be laid into the well after being turned 90 degrees left or right to be laid on the adjacent power cable access 15, the power cable 10 can also be laid to the opposite power cable access 15 along an arc after being laid into the well, a space is reserved at the center and four corners of the inner well space 18 for operation, maintenance and other operations, the power cable 10 is laid to the power cable access 15, the power cable 10 is laid to the outer well wall 3 through the inner well channel 17, and then laying out the well through the through hole on the power cable through pipe hole seat 4 and the power cable through pipe 5.
Furthermore, the communication line 12 is laid into the well through the communication line through pipe 6 and the through hole on the communication line through pipe hole seat 7, the communication line 12 is laid on the communication line bent frame 11 in a layered mode after entering the well, the communication line 12 is laid on a laying layer with the corresponding height on the communication line bent frame 11 according to the position of the through hole where the communication line 12 is located, binding and fixing are conducted, the communication line 12 is laid in the well in a rotating mode around the center of the well along the anticlockwise direction after being laid, the communication line 12 is laid in an island-shaped laying mode in the well until being laid to the outlet in a rotating mode, the communication line 12 is laid out of the well through the through hole on the communication line through pipe hole seat 7 and the communication line through pipe 6, multiple circles of communication lines can be laid around the center of the well in the well before being laid out of the well for standby, and the communication line 12 is laid on the upper portion of the outer well space 19.
In one embodiment of the invention, a power cable bent frame 9 of a nested working well is fixedly arranged on the ground 8 of a well bottom of an inner well space 18 through expansion bolts, the power cable bent frame 9 is of a multilayer structure, the number of layers of the power cable bent frame 9 is matched with the number of layers of through holes on a power cable through pipe hole seat 4, the height of each layer of the power cable bent frame 9 is matched with the height of each layer of through holes on the power cable through pipe hole seat 4, a power cable 10 is laid on the power cable bent frame 9 in the well, a communication line bent frame 11 is fixedly arranged on the inner surface of an outer well wall 3 through the expansion bolts, the communication line bent frame 11 is of a multilayer structure, the number of layers of the communication line bent frame 11 is matched with the number of layers of through holes on a through pipe hole seat 7, the height of the communication line bent frame 11 is matched with the height of each layer of through holes on the communication line through pipe hole seat 7, the communication line bent frame 11 is set to be 16, 2 communication lines are distributed on each outer well wall 3, the 3 chamfer faces of every outer well wall distribute 2, and power cable bent frame 9 is provided with 4.
The invention also relates to a wire arranging method of the nested working well, which comprises the following steps:
the method comprises the following steps: completing the manufacture of the nested working well;
the method comprises the following specific steps: and pouring a main structure of the nested working well at a preset position. Installing a power cable bent frame 9 on the ground 8 of the well bottom, and installing a communication line bent frame 11 on the inner surface of the outer well wall 3; and (3) finishing the connection of the power cable through pipe 5 and the power cable through pipe hole seat 4, finishing the connection of the communication wire through pipe 6 and the communication wire through pipe hole seat 7, and finally finishing the whole manufacturing of the well body structure.
Step two: laying a power cable 10;
laying operators enter an inner well space 18 through a manhole 2 to lay, laying power cables 10 into a well through holes in a power cable through pipe 5 and a power cable through pipe hole seat 4, then laying the power cables to the inner well space 18 through an inner well channel 17, laying the power cables 10 on a power cable bent frame 9 in layers after entering the inner well space 18, laying the power cables 10 on laying layers with corresponding heights on the power cable bent frame 9 according to the positions of the holes where the power cables 10 are located, binding and fixing to realize corresponding entry and exit and avoid free movement of the power cables 10, laying the power cables 10 to adjacent power cable entrances and exits 15 after turning left or right 90 degrees after laying the power cables 10 into the well, laying the power cables 10 to the opposite power cable entrances and exits 15 along an arc shape after laying the power cables 10 into the well, laying the power cables 10 to an outer well wall 3 through the inner well channel 17, and then laying out the well through the through hole on the power cable through pipe hole seat 4 and the power cable through pipe 5.
Step three: communication lines 12 are laid.
Laying operators enter an outer well space 19 through a manhole 2 to carry out laying operation, a communication line 12 is laid into a well through a communication line pipe penetrating 6 and a through hole on a communication line pipe penetrating seat 7, the communication line 12 is laid on a communication line bent 11 layer by layer after entering the well, the communication line 12 is laid on a laying layer with a corresponding height on the communication line bent 11 according to the position of the through hole where the communication line 12 is located and is bound and fixed, the communication line 12 is laid into the well and then rotates around the center of the well along the anticlockwise direction, the communication line 12 is laid in an island shape until the communication line is laid to an outlet, the communication line 12 is laid out of the well through the through hole on the communication line pipe penetrating seat 7 and the communication line pipe penetrating 6 to realize ordered wiring in the well, so that the conventional operations such as searching, overhauling and the like are convenient, a plurality of spare circles can be laid around the center of the well before the communication line 12 is laid out of the well, the communication line 12 is laid in the upper part of the outer well space 19.
The laying of the power cable 10 and the communication line 12 within the same nested workwell is completed and isolated from each other.
Step four: maintenance work for the power cable 10 and the communication line 12 in the well
An operator enters the inner well space 18 through the manhole 2 at the center to perform maintenance, searching, overhauling and other operations on the power cable 10, and ventilation is performed through the ventilation opening at the moment; the operator can enter the outer well space 19 through the manholes 2 at two sides to perform maintenance, searching, overhaul and other operations on the communication line 12, wherein the manholes 2 at two sides are used for entering one person and the other person is used for ventilation, and the operator can climb the staircase 14 to cross the isolation groove 16 in the outer well space 19. The work related to the power cable 10 and the communication line 12 does not interfere with each other and does not affect each other.
Therefore, the nested working well of the invention shares the same working well with the power cable and the communication line, the power cable is laid in the inner well space, the communication line is laid in the outer well space, the power cable is laid into the well through the through holes on the power cable pipe and the power cable pipe hole seat, then enters the inner well space through the inner well channel to complete the well entry, the power cable is laid on the power cable bent frame in layers after entering the well, the power cable is laid on the laying layer with the corresponding height on the power cable bent frame according to the position of the power cable entrance of the power cable, and is bound and fixed, the power cable can be laid to the adjacent power cable entrance after turning 90 degrees leftwards or rightwards after being laid into the well, the power cable can be laid to the opposite power cable entrance along the arc shape after being laid into the well, the space is reserved in the center and four corners of the inner well space for operation, maintenance and the like, and the power cable is laid to the power cable inlet and outlet, and then laid to the outer well wall through the inner well channel, and then laid out of the well through the through hole in the power cable pipe penetrating hole seat and the power cable pipe penetrating seat.
The communication line is laid into the well through the communication line penetrating pipe and the through hole in the communication line penetrating pipe hole seat, the communication line is laid on the communication line bent frame in a layered mode after entering the well, the communication line is laid on a laying layer with the corresponding height on the communication line bent frame according to the position of the communication line in the through hole and is bound and fixed, the communication line is laid in the well in a rotating mode around the center of the well along the anticlockwise direction after being laid into the well, the communication line is laid in an island-shaped mode in a communication ring in the well until being laid to the outlet in a rotating mode, the communication line is laid out of the well through the through hole in the communication line penetrating pipe hole seat and the communication line penetrating pipe, multiple circles of communication lines can be laid around the center of the well in the well for standby before being laid out of the well, and the communication line is laid on the upper portion of the outer well space.
It should be apparent that the foregoing description and illustrations are by way of example only, and are not intended to limit the present disclosure, application or uses. While embodiments have been described in the embodiments and depicted in the drawings, the present invention is not limited to the particular examples illustrated by the drawings and described in the embodiments as the best mode presently contemplated for carrying out the teachings of the present invention, and the scope of the present invention will include any embodiments falling within the foregoing description and the appended claims.
Claims (10)
1. The utility model provides a nested formula working well, includes roof, outer wall of a well, shaft bottom ground and interior wall of a well, its characterized in that:
the bottom-hole ground is made of reinforced concrete poured on a foundation, the bottom-hole ground is rectangular, four corners of the rectangle are of right-angle chamfer structures, the outer well wall is vertically arranged and surrounds the bottom-hole ground for a circle, the outer well wall comprises 4 wall surfaces, the top plate and the bottom-hole ground are of the same plane structure, the top plate covers a space surrounded by the whole outer well wall, the top plate and the top end of the outer well wall are integrally poured and connected to form a well space, a plurality of manholes and ventilation holes are formed in the top plate, and the manholes and the ventilation holes penetrate through the inside and the outside of the well;
an inner well wall is arranged on the ground of the well bottom, the inner well wall comprises 4 inner wall surfaces, a right-angle chamfer structure is designed between every two adjacent inner wall surfaces, and the 4 inner wall surfaces of the inner well wall are correspondingly parallel to the 4 wall surfaces of the outer well wall, so that the space in the well is isolated into an inner well space and an outer well space, and a nested structure of the well in the well is formed;
the inner wall surface of the inner well wall is provided with a power cable inlet and outlet for laying a power cable to enter and exit the inner well space, and the outer well wall is provided with a power cable pipe penetrating hole seat.
2. The nested work well of claim 1, wherein: the manhole sets up to 3, and the manhole at center is located well space directly over, and the manhole of roof chamfer inboard is located well space's top outward, and the ventilation hole is located well space directly over.
3. The nested work well of claim 1, wherein: the inner well wall is characterized in that one or more power cable inlets and outlets are formed in 4 inner wall surfaces of the inner well wall, one or more power cable tube penetrating hole seats are formed in 4 wall surfaces of the outer well wall, the number of the power cable tube penetrating hole seats is equal to that of the power cable inlets and outlets, and the power cable tube penetrating hole seats in the same direction are aligned with the positions of the power cable inlets and outlets.
4. The nested work well of claim 3, wherein: the power cable pipe penetrating seat is positioned at the lower part of the outer well wall, the specific height of the power cable pipe penetrating seat is matched with the height of the position of an outdoor cable inlet, a plurality of layers of through holes are formed in the power cable pipe penetrating seat, the number of the layers of the through holes is matched with the number of layers of outdoor cable inlets, a plurality of through holes are formed in each layer, the number of the through holes in each layer is matched with the number of the inlets of the corresponding outdoor cable inlets, and the tail end of a power cable pipe penetrates into the plurality of layers of through holes of the power cable pipe penetrating seat and is flush with the inner wall of the outer well wall;
the design has the isolation groove between power cable poling hole seat and the power cable access & exit in same position, the isolation groove design is the shape of falling U, the isolation groove back-off is on the shaft bottom ground in outer well space and with the fixed piecing together of shaft bottom ground, an end face and the wall connection of the outer wall of a well that corresponds of isolation groove, another end face and the outer wall connection of the interior well wall that corresponds of isolation groove, formed interior well passageway between isolation groove inner chamber and the shaft bottom ground, interior well passageway intercommunication interior well space and outer space of well, interior well passageway is used for power cable business turn over interior well space.
5. The nested working well of claim 4, wherein: the both sides face of isolation groove all is provided with the staircase so that personnel can cross the isolation groove.
6. The nested work well of claim 1, wherein: the power cable bent frames are arranged on the ground of the bottom of the well in the inner well space, and a plurality of power cable bent frames are arranged and are respectively positioned at the entrance and the exit of the power cable or between the two adjacent entrances and exits of the power cable to erect the power cable.
7. The nested work well of claim 6, wherein: the power cable bent is fixedly arranged on the ground of the shaft bottom in the inner well space through expansion bolts, the power cable bent is of a multilayer structure, the number of layers of the power cable bent is matched with the number of layers of through holes in the power cable pipe penetrating hole seat, the height of each layer of the power cable bent is matched with the height of each layer of through holes in the power cable pipe penetrating hole seat, and power cables are laid on the power cable bent in the well.
8. The nested working well of claim 1, wherein: be provided with the communication line poling hole seat on the outer wall of a well, communication line poling hole seat is located the upper portion of the outer wall of a well, the concrete height of communication line poling hole seat and the high phase-match of outer inlet wire position, be provided with the multilayer through-hole on the communication line poling hole seat, the number of piles phase-match of through-hole number and outer inlet wire, the through-hole sets to loudspeaker form and disperses towards the direction in the well, every layer of through-hole is provided with a plurality ofly, the quantity of every layer of through-hole and the inlet wire quantity phase-match that corresponds the inlet wire layer outside the well, the end of communication line poling penetrates the through-hole inside and with the inner wall parallel and level of the outer wall of a well, all set up one or more communication line poling hole seats on 4 walls of the outer wall of a well.
9. The nested working well of claim 8, wherein: the communication line framed bent sets up the internal surface at the wall of a well outside, and the communication line framed bent is provided with a plurality ofly, and a plurality of communication line framed bent distribute at the inboard a week of the wall of a well outside, and the communication line framed bent passes through expansion bolts fixed mounting at the wall of a well internal surface outside, and the communication line framed bent is multilayer structure, and the number of piles of communication line framed bent number and the number of piles phase-match of through-hole on the communication line poling hole seat, the height of each layer of communication line framed bent and the height phase-match of each layer of through-hole on the communication line poling hole seat.
10. A method of lining a nested working well according to claim 9, comprising the steps of:
the method comprises the following steps: completing the manufacture of the nested working well;
step two: laying a power cable;
step three: laying a communication line;
wherein, laying operation personnel enter the outer well space through the manhole to carry out laying operation, a communication line is laid into the well through the communication line through pipe and the through hole on the communication line through pipe hole seat, the communication line is laid on the laying layer with corresponding height on the communication line rack after entering the well, and is bound and fixed, the communication line is laid in a rotating way around the center of the well along the anticlockwise direction after being laid into the well, the communication line is laid in an island shape of a communication ring in the well until being laid to the outlet in a rotating way, the communication line is laid out of the well through the through hole on the communication line through pipe hole seat and the communication line through pipe to realize ordered wiring in the well, which is convenient for searching and overhauling operation, the communication line is laid for a plurality of circles around the center of the well before being laid out of the well, the communication line is laid on the upper part of the outer well space, thereby finishing laying the power cable and the communication line in the same nested working well, but also isolated from each other.
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