CN218622319U - Prefabricated assembled concrete straight manhole well matched with cable pipe trench - Google Patents
Prefabricated assembled concrete straight manhole well matched with cable pipe trench Download PDFInfo
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- CN218622319U CN218622319U CN202222622410.2U CN202222622410U CN218622319U CN 218622319 U CN218622319 U CN 218622319U CN 202222622410 U CN202222622410 U CN 202222622410U CN 218622319 U CN218622319 U CN 218622319U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/60—Planning or developing urban green infrastructure
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Abstract
The utility model discloses a prefabricated assembled concrete straight manhole well matched with a cable pipe trench, which comprises a first segment and a second segment; the end surfaces of the rear ends of the first section and the second section are both spigot ends, the spigot ends are provided with flanges, the end surfaces of the front ends of the first section and the second section are both spigot ends, the spigot ends are provided with grooves, the rear ends of the first section and the front ends of the second section are connected in a socket joint mode, and the inner edges of the grooves are attached to the outer edges of the flanges; the inner cavity four corners department of first festival section and second festival section all is provided with the through-hole that the axial runs through, and the inner cavity of first festival section and second festival section is provided with the fixed slot at the through-hole middle part, is provided with the prestressing tendons in the through-hole, and prestressing tendons end fixing is in the fixed slot. The construction speed of the straight-through manhole well is improved, and the rapid construction of pipe trench assembly can be realized.
Description
Technical Field
The utility model belongs to cable straight-through well field relates to a supporting prefabricated assembled concrete of cable trench leads to manhole well.
Background
And the manhole well is a through hole for cable maintenance and access personnel to enter into the hole for implementing cable maintenance and access. In the electric power trench engineering, the straight-through manhole well is used as a node of a pipeline, is used for constructors to go in and out, is convenient to maintain and overhaul at a later stage, and plays a vital role in long-term use of cable engineering. At present, according to the power pipe trench industry, the construction of a straight through well is mainly cast in situ, the construction period is long and is generally about 45 days, and a construction period bottleneck point is caused.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome above-mentioned prior art's shortcoming, provide a supporting prefabricated assembled concrete of cable trench leads to manhole well, improve the construction speed of leading to manhole well, can realize that the trench assemblization is under construction fast.
In order to achieve the above purpose, the utility model adopts the following technical scheme to realize:
a prefabricated assembled concrete straight manhole well matched with a cable pipe trench comprises a first section and a second section;
the first section and the second section are both tubular, the outer wall and the inner cavity of the longitudinal section are both rectangular, the end surfaces of the rear ends of the first section and the second section are both spigot ends, flanges are arranged at the spigot ends, the end surfaces of the front ends of the first section and the second section are both spigot ends, grooves are arranged at the spigot ends, the rear ends of the first section and the front ends of the second section are connected in a socket-and-spigot connection mode, and the inner edges of the grooves are attached to the outer edges of the flanges;
the inner cavity four corners department of first festival section and second festival section all is provided with the through-hole that the axial runs through, and the inner cavity of first festival section and second festival section is provided with the fixed slot at the through-hole middle part, is provided with the prestressing tendons in the through-hole, and the prestressing tendons tip is fixed in the fixed slot.
Preferably, the four corners of the inner cavity of the first section and the inner cavity of the second section are provided with inward chamfers, and the through holes are located at the chamfers.
Preferably, the section of the fixing groove is trapezoidal, and one end facing the inner cavity is a large opening end.
Preferably, a polysulfide sealant is arranged at the joint of the rear end of the first section and the front end of the second section, close to the inner cavity side and the outer side.
Further, a water-swelling sealing strip is arranged between the two polysulfide sealing pastes.
Preferably, the top of the rear end of the first section and the top of the front end of the second section are provided with opposite semicircular through holes, after the rear end of the first section and the front end of the second section are connected, the two semicircular through holes form a circular through hole, the bottom of the rear end of the first section and the bottom of the front end of the second section are provided with rectangular through holes, and after the rear end of the first section and the front end of the second section are connected, the two rectangular through holes form a square through hole.
Preferably, the outer walls of the two sides of the first section and the second section are provided with hoisting holes.
Preferably, the ends of the prestressed tendons are anchored in the fixing grooves by using anchors.
Preferably, the diameter of the prestressed tendon is 15.2mm, and the prestressed tendon consists of 7 steel wires.
Preferably, the tensile force of the prestressed tendon after being fixed is 30Mpa.
Compared with the prior art, the utility model discloses following beneficial effect has:
the utility model discloses a socket joint connection formula articulate technique makes the location accurate between the working well component, has improved the connection performance between two sections, adopts prestressing force technique simultaneously, closely links to each other two sections, has improved structural integrity to first section and second section can regard as the prefab, have greatly improved the construction speed of direct manhole well, can realize that the trench assembly ization is under construction fast, and construction cycle can be shortened to 2 to 3 days.
Further, four angles all are provided with the chamfer, with the through-hole setting in chamfer department, can reduce the through-hole to the structural influence at four angles, improve the structural performance of festival section.
Further, the fixed slot cross-section is trapezoidal, and the one end towards the inner chamber is the macrostoma end, can reduce the fixed slot and stretch into the volume, reduces the structural influence to four angles.
Furthermore, polysulfide sealant and the water-swelling water stop strip are arranged at the joint of the first section and the second section, so that the water resistance of the joint is improved.
Further, the both sides outer wall of first festival section and second festival section all is provided with the hole for hoist and mount, conveniently hoists the transportation.
Drawings
FIG. 1 is a top sectional view of two sections of the present invention after joining;
FIG. 2 is a bottom sectional view of the two segments of the present invention after joining;
fig. 3 is a sectional view of the fixing groove of fig. 1 according to the present invention;
fig. 4 is a cross-sectional view of the junction of the first and second segments of fig. 1 according to the present invention;
fig. 5 is an enlarged view of the junction of two segments of the present invention.
Wherein: 1-a first segment; 2-a second segment; 3-a through hole; 4, fixing the groove; 5-prestressed tendons; 6-polysulfide sealant; 7-water swelling water stop strip; 8-semicircular through holes; 9-rectangular through holes; and 10-hoisting holes.
Detailed Description
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 some embodiments of the present invention, not all embodiments; based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
As shown in fig. 1 and 2, for the cable trench of the present invention, the prefabricated concrete straight manhole shaft includes a first section 1 and a second section 2.
First section 1 and second section 2 are square tube, longitudinal section's outer wall and inner chamber are the rectangle, the terminal surface of first section 1 and 2 rear ends of second section is the spigot end, the spigot end is provided with the flange, the terminal surface of first section 1 and 2 front ends of second section is the bell end, the bell end is provided with the recess, 1 rear end of first section is connected through socket joint connection formula with 2 front ends of second section, the recess inward flange laminates with the flange outward flange mutually, first section 1 and second section 2 can adopt socket joint connection formula to be connected rather than the tube coupling of front and back side equally, it is accurate to make location between the working well component, the connection performance between two sections has been improved.
The top of the rear end of the first section 1 and the top of the front end of the second section 2 are provided with opposite semicircular through holes 8, the rear ends of the first section 1 and the front ends of the second section 2 are connected, the two semicircular through holes 8 form a circular through hole, the bottom of the rear end of the first section 1 and the bottom of the front end of the second section 2 are provided with rectangular through holes 9, and the square through hole is formed by the two rectangular through holes 9 after the rear ends of the first section 1 and the front ends of the second section 2 are connected.
A circular through hole is reserved at the top of the center of the straight-through well, and a brick structure is adopted above the circular through hole; a rectangular through hole 9 reserved at the bottom of the center of the straight through well and a later cast-in-situ sump structure.
In the figure, L is the length of the segment and is equal to 2m; b is the width of the straight-through well, and the value is 1.5 to 1.8m; h is the height of the straight through well, and the value is 1.8 to 2.0m; d is the wall thickness; r is the radius of the circular through hole after the top is spliced; l1 is the side length of the square through hole after the bottom splicing; r1 is the radius of the through hole 3 reserved with the prestressed tendon 5.
As shown in fig. 3, the outer walls of the two sides of the first section 1 and the second section 2 are provided with lifting holes 10, so that lifting and transportation are facilitated.
As shown in fig. 4, the four corners of the inner cavities of the first section 1 and the second section 2 are provided with inward chamfers, the chamfers are provided with through holes 3 which are axially penetrated, the four corners are provided with chamfers, the through holes 3 are arranged at the chamfers, the structural performance of the sections can be improved, the inner cavities of the first section 1 and the second section 2 are provided with fixing grooves 4 in the middle of the axial directions of the chamfers, prestressed tendons 5 are arranged in the through holes 3, and the ends of the prestressed tendons 5 are fixed in the fixing grooves 4.
As shown in fig. 3, the cross section of the fixing groove 4 is trapezoidal, and the end facing the inner cavity is a large opening end, so that the size of the fixing groove 4 can be reduced, and the structural influence on four corners is reduced.
After the two sections are connected, three prestressed tendons 5 are adopted at each corner, the first prestressed tendon 5 is connected with the pipe joint in front of the first section 1 and the front end of the first section 1, and the end part of the first prestressed tendon 5 is fixed in a fixing groove 4 of the first section 1; the second prestressed tendon 5 is connected with the rear end of the first section 1 and the front end of the second section 2, and two ends of the second prestressed tendon 5 are respectively fixed in the fixing groove 4 of the first section 1 and the fixing groove 4 of the second section 2; the third prestressed tendon 5 is connected with the rear end of the second section 2 and the pipe joint behind the second section 2, and the third prestressed tendon 5 is fixed in the fixing groove 4 of the second section 2.
The diameter of the prestressed tendon 5 is 15.2mm, and the prestressed tendon is composed of 7 steel wires. The end parts of the prestressed tendons 5 are anchored in the fixing groove 4 by using an anchorage device, four prestressed tendons 5 are simultaneously tensioned at one end, and the tensioning force of the anchored prestressed tendons 5 is 30Mpa.
As shown in fig. 5, polysulfide sealant 6 is arranged at the joint of the rear end of the first section 1 and the front end of the second section 2, the polysulfide sealant 6 is arranged between the flange and the groove, and a water-swelling sealing rod 7 is arranged between the two polysulfide sealants 6, so that the water resistance of the joint is improved.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
It is to be understood that the above description is intended to be illustrative, and not restrictive. Many embodiments and many applications other than the examples provided would be apparent to those of skill in the art upon reading the above description. The scope of the present teachings should, therefore, be determined not with reference to the above description, but should instead be determined with reference to the appended claims, along with the full scope of equivalents to which such claims are entitled. The disclosures of all articles and references, including patent applications and publications, are hereby incorporated by reference for all purposes. The omission in the foregoing claims of any aspect of the subject matter disclosed herein is not intended to forego such subject matter, nor should the applicant consider that such subject matter was not considered part of the disclosed subject matter.
Claims (10)
1. A prefabricated assembled concrete straight manhole well matched with a cable pipe trench is characterized by comprising a first section (1) and a second section (2);
the first section (1) and the second section (2) are both tubular, the outer wall and the inner cavity of the longitudinal section are both rectangular, the end faces of the rear ends of the first section (1) and the second section (2) are both spigot ends, flanges are arranged at the spigot ends, the end faces of the front ends of the first section (1) and the second section (2) are both spigot ends, grooves are arranged at the spigot ends, the rear end of the first section (1) is connected with the front end of the second section (2) in a socket-and-spigot connection manner, and the inner edges of the grooves are attached to the outer edges of the flanges;
the inner cavity four corners department of first festival section (1) and second festival section (2) all is provided with through-hole (3) that the axial runs through, and the inner cavity of first festival section (1) and second festival section (2) is provided with fixed slot (4) in through-hole (3) middle part, is provided with prestressing tendons (5) in through-hole (3), and prestressing tendons (5) end fixing is in fixed slot (4).
2. The prefabricated concrete straight manhole shaft matched with the cable trench as claimed in claim 1, wherein the four corners of the inner cavities of the first section (1) and the second section (2) are provided with inward chamfers, and the through hole (3) is positioned at the chamfer.
3. The prefabricated assembly type concrete straight manhole well matched with the cable trench as claimed in claim 1, wherein the section of the fixing groove (4) is trapezoidal, and one end facing to the inner cavity is a large opening end.
4. The prefabricated concrete straight manhole shaft matched with the cable duct according to claim 1, wherein a polysulfide sealant (6) is arranged at the joint of the rear end of the first section (1) and the front end of the second section (2) close to the inner cavity side and the outer side.
5. The cable duct matched prefabricated concrete straight manhole well as claimed in claim 4, wherein a water-swelling sealing rod (7) is arranged between the two polysulfide sealants (6).
6. The prefabricated concrete straight manhole well matched with the cable pipe trench as claimed in claim 1, wherein opposite semicircular through holes (8) are formed in the top of the rear end of the first section (1) and the top of the front end of the second section (2), after the rear end of the first section (1) and the front end of the second section (2) are connected, the two semicircular through holes (8) form a circular through hole, rectangular through holes (9) are formed in the bottom of the rear end of the first section (1) and the bottom of the front end of the second section (2), and after the rear end of the first section (1) and the front end of the second section (2) are connected, the two rectangular through holes (9) form a square through hole.
7. The cable trench matched prefabricated assembly type concrete straight manhole well as claimed in claim 1, wherein the outer walls of the two sides of the first section (1) and the second section (2) are provided with hoisting holes (10).
8. The cable trench matched prefabricated assembly type concrete straight manhole well as claimed in claim 1, wherein the end of the prestressed tendon (5) is anchored in the fixing groove (4) by an anchorage.
9. The prefabricated concrete straight manhole well for cable trench according to claim 1, wherein the diameter of the prestressed tendon (5) is 15.2mm, and the prestressed tendon is composed of 7 steel wires.
10. The prefabricated assembly type concrete straight manhole well matched with the cable trench as claimed in claim 1, wherein the tensile force of the prestressed tendons (5) after being fixed is 30MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222622410.2U CN218622319U (en) | 2022-09-29 | 2022-09-29 | Prefabricated assembled concrete straight manhole well matched with cable pipe trench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222622410.2U CN218622319U (en) | 2022-09-29 | 2022-09-29 | Prefabricated assembled concrete straight manhole well matched with cable pipe trench |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218622319U true CN218622319U (en) | 2023-03-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222622410.2U Active CN218622319U (en) | 2022-09-29 | 2022-09-29 | Prefabricated assembled concrete straight manhole well matched with cable pipe trench |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218622319U (en) |
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2022
- 2022-09-29 CN CN202222622410.2U patent/CN218622319U/en active Active
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