CN109347027B - Method for passing cable through fireproof door in comprehensive pipe rack - Google Patents
Method for passing cable through fireproof door in comprehensive pipe rack Download PDFInfo
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- CN109347027B CN109347027B CN201811255458.6A CN201811255458A CN109347027B CN 109347027 B CN109347027 B CN 109347027B CN 201811255458 A CN201811255458 A CN 201811255458A CN 109347027 B CN109347027 B CN 109347027B
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- power cable
- partition
- cable
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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
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/22—Installations of cables or lines through walls, floors or ceilings, e.g. into buildings
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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
- E02D29/10—Tunnels or galleries specially adapted to house conduits, e.g. oil pipe-lines, sewer pipes ; Making conduits in situ, e.g. of concrete ; Casings, i.e. manhole shafts, access or inspection chambers or coverings of boreholes or narrow wells
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- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Architecture (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- General Engineering & Computer Science (AREA)
- Laying Of Electric Cables Or Lines Outside (AREA)
- Details Of Indoor Wiring (AREA)
Abstract
The invention discloses a cable fire door passing method for a comprehensive pipe rack, which comprises the following steps of sequentially executing, wherein the step S1 is to set the comprehensive pipe rack; s2, arranging side partition walls; step S3, setting a middle fireproof door; s4, setting a pulley block; step S5, laying a power cable: with the aid of the pulley blocks, the power cable passes through the hole main path from the feeding port of the power cable cabin to the traction port of the power cable cabin, and then the power cable is shifted from the hole main path into each Kong Zhilu; and step S6, setting an edge side fireproof plate. The invention has the beneficial effects that: through increasing limit side partition wall, limit side PLASTIC LAMINATED etc. the influence of destroying the partition wall when construction installation is eliminated basically, makes power cable laying more convenient, and the benefit promotes.
Description
Technical Field
The invention relates to an underground utility tunnel, in particular to a cable fire-proof door passing method used in the utility tunnel.
Background
With the development of underground engineering in China, underground buildings such as tunnels, pipe galleries, underground spaces and the like are gradually increased. According to relevant regulations, the trench, the pipe gallery and the tunnel of the power cable are provided with fireproof doors at certain intervals, and the fireproof doors are provided with pipe holes for the power cable to be laid.
The power cable is drawn by manual or mechanical equipment on pulleys to be laid along the terrace. When passing through a fireproof door, there are two modes at present: first, please see fig. 1, the cable is laid along the preformed hole 1, the power cable 2 needs to be close to the preformed hole when laid along the terrace on the pulley 3, the power cable 2 has deviation from top to bottom and left to right with the preformed hole 3, the power cable is easy to cause the abrasion of the power cable sheath when laid along the pulley and carried to the power cable bracket, and potential safety hazard is caused. And secondly, destroying the fireproof partition wall mode, and building the fireproof partition wall again after the power cable is laid. The process of destruction-new construction-destruction is repeated every time the power cable is laid, so that great waste is caused.
Disclosure of Invention
The invention aims to solve the problem of deviation caused by penetrating cables along reserved holes in the process of passing through fireproof doors of power cables or the problem of waste caused by destroying fireproof partition walls, and provides a novel method for passing through the fireproof doors of cables in a comprehensive pipe rack.
In order to achieve the purpose, the technical scheme of the invention is as follows: a method for passing a cable through a fireproof door in a utility tunnel comprises the steps of,
the utility tunnel is internally provided with a power cable cabin, and the power cable cabin extends along the front-back direction;
a side partition wall disposed on left and right sides of the inside of the power cable compartment, respectively, the side partition wall being formed with partition wall pre-formed holes through which power cables pass, the partition wall pre-formed holes having one hole main path extending in an up-down direction and two or more Kong Zhilu paths extending in left-right directions, the hole main path having a width larger than that of each of the hole branches, the hole main path being in communication with each of the Kong Zhilu so that the power cables can be shifted from the hole main path into each of the Kong Zhilu;
a side fire protection plate disposed in front of and/or behind the side partition wall, the side fire protection plate covering at least the hole main path portion in the side partition wall; the method comprises the steps of,
and the middle fireproof door is arranged inside the power cable cabin and is positioned between the two side partition walls.
As a preferable scheme of the method for passing the cable through the fireproof door in the utility tunnel, each Kong Zhilu is uniformly distributed on the same side of the hole main path, so that the partition reserved holes form a comb-shaped structure.
As a preferred embodiment of the method for passing a cable through a fire door in a utility tunnel, each of the Kong Zhilu is disposed on a side of the hole main path away from the middle fire door.
As a preferable scheme of the cable fire-proof door passing method used in the utility tunnel, cable accommodating grooves are arranged on the hole branches at intervals along the left-right direction, and the cable accommodating grooves are used for accommodating the power cables.
As a preferable scheme of the cable fire door passing method used in the utility tunnel, the cable accommodating groove is composed of an upper concave part formed on the top surface of the Kong Zhilu and a lower concave part formed on the bottom surface of the Kong Zhilu, the upper concave part is matched with the upper half part of the power cable, and the lower concave part is matched with the lower half part of the power cable.
As a preferable scheme of the cable fire-proof door passing method used in the utility tunnel, the gap space formed by the hole branch and the power cable is blocked by fire-proof cement.
As a preferable scheme of the cable fire-proof door passing method for the utility tunnel, a partition wall reserved clamping groove for accommodating the side fire-proof plate is formed on the front and/or the back of the side partition wall, and the side fire-proof plate is arranged in the partition wall reserved clamping groove.
As a preferable scheme of the cable fire door passing method for the utility tunnel, the side partition wall is of a double-layer structure, the side partition wall is provided with a partition wall front layer, a partition wall rear layer and a partition wall connecting part, the partition wall front layer and the partition wall rear layer are spaced back and forth, the partition wall front layer and the partition wall rear layer all extend from the side wall of the power cable cabin to the direction of the middle fire door, the partition wall connecting part extends from the middle fire door end of the partition wall front layer to the middle fire door end of the partition wall rear layer backwards, and the middle fire door is arranged between the left partition wall connecting part and the right partition wall connecting part.
Compared with the prior art, the invention has the beneficial effects that: through increasing limit side partition wall, limit side PLASTIC LAMINATED etc. the influence of destroying the partition wall when construction installation is eliminated basically, makes power cable laying more convenient, and the benefit promotes.
In addition to the technical problems, features constituting the technical solutions and advantageous effects caused by the technical features of the technical solutions described above, other technical problems that the present invention can solve, other technical features included in the technical solutions and advantageous effects caused by the technical features will be described in further detail with reference to the accompanying drawings.
Drawings
Fig. 1 is a schematic diagram of a prior art structure.
Fig. 2 is a schematic longitudinal section of an embodiment of the present invention (without a side fire door).
Figure 3 is a schematic longitudinal cross-section of an embodiment of the present invention (a fire door with sides).
Fig. 4 is a schematic transverse cross-section of an embodiment of the invention.
Detailed Description
The invention will be described in further detail below with reference to the drawings by means of specific embodiments. The description of these embodiments is provided to assist understanding of the present invention, but is not to be construed as limiting the present invention. In addition, the technical features of the embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.
Referring to fig. 2 through 4, there is shown a method for passing a cable through a fire door in a utility tunnel, comprising the steps and performed in sequence,
step S1, setting the comprehensive pipe rack 1. The utility tunnel 1 is internally formed with a power cable compartment 10. The power cable compartment 10 extends in the front-rear direction.
And S2, arranging side partition walls 2. The side partition walls 2 are disposed on the left and right sides of the interior of the power cable compartment 10, respectively. The side partition wall 2 is formed with a partition wall prepared hole 20 through which the power supply cable 6 passes in the front-rear direction. The partition wall prepared hole 20 has one hole main path 201 extending in the up-down direction and two or more hole branches 202 extending in the left-right direction. The width of the hole main 201 is greater than the width of each Kong Zhilu 202. The bore main 201 communicates with each of the Kong Zhilu 202, enabling the power cable 6 to be displaced from the bore main 201 into each of the Kong Zhilu 202.
Step S3, setting a middle fireproof door 3. The intermediate fire door 3 is disposed inside the power cable compartment 10 between the side partition walls 2 on the left and right sides.
Step S4, a pulley block 5 is provided, wherein the pulley block is disposed inside the power cable compartment 10, and the pulley block is disposed along a straight line between a feeding port and a traction port of the power cable compartment 10, and the straight line passes through the hole main 201.
Step S5, laying a power cable 6: a power cable winding disc is arranged at the feeding port of the power cable cabin 10. A tractor or manual traction is arranged at the traction port of the power cable cabin 10. With the aid of the pulley blocks 5, the power cable 6 is guided from the feed opening of the power cable compartment 10 through the hole main 201 to the pulling opening of the power cable compartment 10, and the power cable 6 is displaced from the hole main 201 into each of the Kong Zhilu 202.
Step S6, the side fire-proof plate 4 is set. The side fire protection plate 4 is placed in front of and/or behind the side partition wall 2. The side fire-proof plate 4 covers at least a portion of the hole main 201 in the side partition wall 2. The gap space formed by the Kong Zhilu 202 and the power cable 6 is blocked by fireproof cement 7.
The utility tunnel 1 is formed below the ground. The utility tunnel 1 is internally formed with a power cable compartment 10 or other functional compartment. The power cable compartment 10 extends in the front-rear direction.
The side partition walls 2 are disposed on the left and right sides of the interior of the power cable compartment 10, respectively. The side partition wall 2 is of a double-layer wall structure. The side partition wall 2 has a partition wall front layer 22, a partition wall rear layer 23, and a partition wall connecting portion 24. The partition front layer 22 is spaced back and forth from the partition rear layer 23. The front partition wall layer 22 and the rear partition wall layer 23 extend from the side wall of the power cable compartment 10 toward the middle fireproof door 3. The partition wall connecting portion 24 extends from the intermediate fireproof door 3 end of the partition wall front layer 22 to the intermediate fireproof door 3 end of the partition wall rear layer 23 rearward. The front of the front partition wall layer 22 and the rear of the rear partition wall layer 23 are fire-facing surfaces, and require fire protection.
The side partition wall 2 is formed with a partition wall prepared hole 20 through which the power supply cable 6 passes in the front-rear direction. The partition preformed holes 20 penetrate through the partition front layer 22 and the partition rear layer 23, respectively. The partition wall prepared hole 20 has one hole main path 201 extending in the up-down direction and two or more hole branches 202 extending in the left-right direction. The orifice main passage 201 communicates with each of the Kong Zhilu 202. Each Kong Zhilu is uniformly distributed on the side of the hole main path 201 away from the middle fire door 3, so that the partition wall reserved holes 20 form a comb-shaped structure. The width setting of hole main way 201 is great, the width of hole main way 201 needs to adapt to multiunit (root) power cable 6 to pass through, solves among the prior art along preformed hole cable laying the deviation that brings, also can not cause simultaneously power cable 6 crust wearing and tearing. The width of Kong Zhilu 202 is set smaller and the width of Kong Zhilu 202 need only accommodate passage of a single set (root) of power cables 6.
The Kong Zhilu 202 has cable receiving grooves 2020 disposed therein at intervals in the left-right direction. The cable receiving recess 2020 is for receiving the power cable 6. The cable receiving recess 2020 is comprised of an upper recess formed in a top surface of the Kong Zhilu and a lower recess formed in a bottom surface of the Kong Zhilu 202,202. The upper recess is mated with the upper half of the power cable 6 and the lower recess is mated with the lower half of the power cable 6.
The number of the Kong Zhilu and the cable receiving grooves 2020 is determined according to the number of the power cables 6 to be laid. The greater the number of the power cables 6, the greater the number of the Kong Zhilu and the cable receiving grooves 2020.
The intermediate fire door 3 is placed between the partition wall connecting portions 24.
The pulley block 5 is placed inside the power cable compartment 10. The pulley blocks 5 are arranged along a straight line between the feeding port and the traction port of the power cable compartment 10, and the straight line passes through the hole main road 201.
The side fire protection plate 4 is placed in front of and/or behind the side partition wall 2. In order to better fix the side fire-proof plate 4, a partition wall reserved clamping groove 21 for accommodating the side fire-proof plate 4 is formed on the front and/or rear of the side partition wall 2. The side fireproof plate 4 is placed in the partition reserved clamping groove 21 and is fixed in a clamping manner. The side fire-proof plate 4 covers at least a portion of the hole main 201 in the side partition wall 2. In this embodiment, the front and/or rear of the side partition wall 2 is covered by the side fire-proof plate 4 except for the Kong Zhilu 202 portion. The gap space formed by the Kong Zhilu 202 and the power cable 6 is blocked by fireproof cement 7. Therefore, under the condition of not damaging the partition wall of the fireproof door, the fireproof requirement is met, and the construction and the installation of the power cable 6 are also facilitated.
The foregoing has outlined rather broadly the more detailed description of the invention in order that the detailed description thereof that follows may be better understood, and in order that the present invention may be better understood. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (8)
1. A method for passing a cable through a fireproof door in a utility tunnel is characterized by comprising the following steps and sequentially executing the following steps,
step S1, a utility tunnel is arranged, a power cable cabin is formed in the utility tunnel, and the power cable cabin extends along the front-back direction;
step S2, arranging side partition walls which are respectively arranged at the left side and the right side of the interior of the power cable cabin, wherein partition wall reserved holes through which a power cable penetrates are formed in the side partition walls, each partition wall reserved hole is provided with a hole main path extending in the up-down direction and more than two Kong Zhilu extending in the left-right direction, the width of each hole main path is larger than that of each hole branch path, and each hole main path is communicated with each Kong Zhilu, so that the power cable can be shifted from the hole main path into each Kong Zhilu;
step S3, a middle fireproof door is arranged, and the middle fireproof door is arranged in the power cable cabin and between the side partition walls on the left side and the right side;
s4, arranging pulley blocks, wherein the pulley blocks are arranged in the power cable cabin, are arranged along a straight line between a feeding port and a traction port of the power cable cabin, and pass through the hole main road;
step S5, laying a power cable: with the aid of the pulley blocks, the power cable passes through the hole main path from the feeding port of the power cable cabin to the traction port of the power cable cabin, and then the power cable is shifted from the hole main path into each Kong Zhilu; the method comprises the steps of,
and S6, arranging an edge side fireproof plate, wherein the edge side fireproof plate is arranged in front of and/or behind the edge side partition wall and covers at least the hole main path part in the edge side partition wall.
2. The method for passing fire door for cables in utility tunnel according to claim 1, wherein in step S2, each Kong Zhilu is uniformly distributed on the same side of the hole main path, so that the partition reserved holes form a comb structure.
3. A method for passing a cable through a fire door in a utility tunnel according to claim 2, wherein in step S2, each of said Kong Zhilu is disposed on a side of said hole main that is remote from said middle fire door.
4. The method for passing fire door of cable in utility tunnel according to claim 1, wherein in step S2, cable accommodating grooves are arranged on the hole branches at intervals along the left-right direction, and the cable accommodating grooves are used for accommodating the power cable.
5. The method for passing fire door of electric cable in utility tunnel according to claim 4, wherein in step S2, the electric cable accommodation groove is composed of an upper concave portion formed on the top surface of Kong Zhilu and a lower concave portion formed on the bottom surface of Kong Zhilu, the upper concave portion being mated with the upper half portion of the electric cable, and the lower concave portion being mated with the lower half portion of the electric cable.
6. The method for passing a cable through a fire door in a utility tunnel according to claim 4, wherein in step S6, the interstitial space formed by the hole branches and the power cable is plugged with fire-retardant cement.
7. The method for passing fire door for cable in utility tunnel according to claim 1, wherein in step S6, a partition reservation slot for accommodating the side fire-proof plate is formed on the front and/or rear of the side partition, and the side fire-proof plate is placed in the partition reservation slot.
8. The method for passing a cable through a fire door in a utility tunnel according to any one of claims 1 to 7, wherein in step S2, the side partition has a double-layered structure, the side partition has a partition front layer, a partition rear layer, and partition connecting portions, the partition front layer and the partition rear layer are spaced apart from each other, the partition front layer and the partition rear layer each extend from a side wall of the power cable compartment toward the middle fire door, the partition connecting portions extend from the middle fire door end of the partition front layer back to the middle fire door end of the partition rear layer, and the middle fire door is interposed between the left and right two partition connecting portions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811255458.6A CN109347027B (en) | 2018-10-26 | 2018-10-26 | Method for passing cable through fireproof door in comprehensive pipe rack |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811255458.6A CN109347027B (en) | 2018-10-26 | 2018-10-26 | Method for passing cable through fireproof door in comprehensive pipe rack |
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| CN109347027A CN109347027A (en) | 2019-02-15 |
| CN109347027B true CN109347027B (en) | 2023-05-30 |
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| CN201811255458.6A Active CN109347027B (en) | 2018-10-26 | 2018-10-26 | Method for passing cable through fireproof door in comprehensive pipe rack |
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| JPH07107635A (en) * | 1993-10-01 | 1995-04-21 | Ishikawajima Harima Heavy Ind Co Ltd | Method and apparatus for laying underground cable |
| CN202917845U (en) * | 2012-10-10 | 2013-05-01 | 李箐 | Moistureproof and fireproof plugging structure for cable split box |
| CN104300438A (en) * | 2014-09-23 | 2015-01-21 | 国家电网公司 | Method for laying large cable on small tray of overhead cable bridge |
| CN204225292U (en) * | 2014-11-12 | 2015-03-25 | 国网辽宁省电力有限公司鞍山供电公司 | A kind of detachable fireproof plugging structure being convenient to cable increase-volume |
| CN107221885A (en) * | 2017-06-14 | 2017-09-29 | 中冶南方城市建设工程技术有限公司 | Underground pipe gallery cable draws node and its construction method |
| CN108275573A (en) * | 2018-01-30 | 2018-07-13 | 中铁二十二局集团第工程有限公司 | The construction method for hanging and lifting translation unit equipment of rock tunnel(ling) machine |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030172603A1 (en) * | 2001-12-19 | 2003-09-18 | Mckesson William S. | Fire collar |
| US7560644B2 (en) * | 2007-11-19 | 2009-07-14 | Luse Thermal Technologies, LLC | Passive fire protection system for energized electric utility facilities and method of installation |
| US20180145490A1 (en) * | 2016-11-21 | 2018-05-24 | Scott W. Guinta | Apparatus for supporting conduits and channel members |
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2018
- 2018-10-26 CN CN201811255458.6A patent/CN109347027B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07107635A (en) * | 1993-10-01 | 1995-04-21 | Ishikawajima Harima Heavy Ind Co Ltd | Method and apparatus for laying underground cable |
| CN202917845U (en) * | 2012-10-10 | 2013-05-01 | 李箐 | Moistureproof and fireproof plugging structure for cable split box |
| CN104300438A (en) * | 2014-09-23 | 2015-01-21 | 国家电网公司 | Method for laying large cable on small tray of overhead cable bridge |
| CN204225292U (en) * | 2014-11-12 | 2015-03-25 | 国网辽宁省电力有限公司鞍山供电公司 | A kind of detachable fireproof plugging structure being convenient to cable increase-volume |
| CN107221885A (en) * | 2017-06-14 | 2017-09-29 | 中冶南方城市建设工程技术有限公司 | Underground pipe gallery cable draws node and its construction method |
| CN108275573A (en) * | 2018-01-30 | 2018-07-13 | 中铁二十二局集团第工程有限公司 | The construction method for hanging and lifting translation unit equipment of rock tunnel(ling) machine |
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