CN216551959U - Span suspension protection structure for high-voltage cable pipeline crossing foundation pit - Google Patents
Span suspension protection structure for high-voltage cable pipeline crossing foundation pit Download PDFInfo
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- CN216551959U CN216551959U CN202123055629.0U CN202123055629U CN216551959U CN 216551959 U CN216551959 U CN 216551959U CN 202123055629 U CN202123055629 U CN 202123055629U CN 216551959 U CN216551959 U CN 216551959U
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- cable pipeline
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Abstract
The utility model discloses a span suspension protection structure for a high-voltage cable pipeline to cross a foundation pit, which comprises a protective net, a rope frame for enclosing the top surface and the side surface of the high-voltage cable pipeline, lamp belts arranged on the protective net and the rope frame, and warning marks arranged on the rope frame and on retaining walls on two sides of the foundation pit; the section of the rope frame, which is vertical to the laying direction of the high-voltage cable pipeline, is in an M shape; the protective net is fully paved on the top surface of the rope frame. The utility model can effectively protect the high-voltage cable pipeline crossing the foundation pit in the span suspension, thereby preventing the high-voltage cable pipeline from being damaged and ensuring the personal safety of constructors.
Description
Technical Field
The utility model relates to the technical field of underground cable protection construction, in particular to a span suspension protection structure for enabling a high-voltage cable pipeline to cross a foundation pit.
Background
In the construction of the underground structure of the urban rail transit station, 4 YJV22-8.7/15kV-3 multiplied by 300mm with the underground laying depth of 7.0m are often encountered2And each 10kV hose type high-voltage cable which is respectively arranged in a PE (polyethylene) cable protection pipe with DN166mm multiplied by 8.0mm penetrates through the middle position of the foundation pit. Based on the situation, before the underground structure foundation pit is constructed, the 10kV hose type high-voltage cable is required to be suspended normally so as to ensure normal and safe construction of the underground structure foundation pit. However, in the process of suspending the high-voltage cable, a lot of uncertain external factors need to be faced, such as an electric shock accident caused by a mechanical operator crossing a safety warning line to collide or breaking the high-voltage cable and the PE pipe during construction work at night or in the daytime, sun exposure in summer accelerates aging of the high-voltage cable and the PE pipe, falling objects in the air break the high-voltage cable and the PE pipe, and damage the suspension facilities of the high-voltage cable and the PE pipe.
SUMMERY OF THE UTILITY MODEL
Aiming at the problems, the utility model provides a span suspension protection structure for enabling a high-voltage cable pipeline to cross a foundation pit, which can effectively protect the high-voltage cable pipeline crossing the foundation pit in span suspension so as to prevent the high-voltage cable pipeline from being damaged and ensure the personal safety of constructors.
The utility model is realized by the following technical scheme.
The high-voltage cable pipeline crosses the span suspension protective structure of the foundation pit, including the protective net, carry on the rope frame of the enclosure to the top surface and side of the high-voltage cable pipeline; the section of the rope frame perpendicular to the laying direction of the high-voltage cable pipeline is in an M shape; the protective net is fully paved on the top surface of the rope frame.
As a specific technical solution, the present invention further comprises: and the lamp belts are arranged on the protective net and the rope frame.
As a specific technical scheme, the lamp belts positioned on the rope frame are arranged on two side surfaces of the rope frame in a wavy manner; the lamp belts positioned on the protective net are arranged along the outline of the outer edge of the protective net and the diagonal line.
As a specific technical solution, the present invention further comprises: and the power switch box is arranged outside the foundation pit and electrically connected with the lamp strip.
As a specific technical scheme, the protective net is a double-layer protective net made of Dyneema.
According to the specific technical scheme, the rope frame is formed by tensioning a steel wire rope between two ends of a foundation pit along the laying direction of a high-voltage cable pipeline.
According to the specific technical scheme, the rope frame comprises a top surface steel wire rope arranged at a position 1-1.5 m above a high-voltage cable pipeline installation area, bottom surface steel wire ropes arranged at positions 0.5-1.2 m on the two sides outside the high-voltage cable pipeline installation area and a vertical steel wire rope;
the number of the top surface steel wire ropes is 4-8, the section of the top surface steel wire ropes perpendicular to the laying direction of the high-voltage cable pipeline is a concave surface with a high edge and a low middle, the vertical projection line of the top surface steel wire rope on the outermost side is overlapped with the bottom surface steel wire rope, and the vertical steel wire rope is connected between the top surface steel wire rope and the bottom surface steel wire rope on the same side.
According to the specific technical scheme, the vertical steel wire ropes are arranged at intervals of 5-15 m along the laying direction of the high-voltage cable pipeline.
As a specific technical solution, the present invention further comprises: and the warning marks are arranged on the rope frame and the retaining walls on two sides of the foundation pit.
Compared with the prior art, the utility model has the advantages that:
the top surface and two sides of the high-voltage cable pipeline after flexible suspension can be comprehensively protected by arranging the M-shaped hood type protection structure, and the high-voltage cable pipeline protection structure not only has the functions of shading, weakening sunlight solarization and preventing the high-voltage cable pipeline from being aged at an accelerated speed, but also can prevent high-altitude falling objects from smashing the high-voltage cable pipeline and damaging flexible suspension facilities; in addition, the warning mark can remind and warn mechanical operators to strictly forbid crossing a safety warning line to collide or break a high-voltage cable pipe to cause electric shock accidents during construction operation at night or in the daytime; and the wave-shaped installation of the side LED lamp strip in the M-shaped cover type protection structure not only enhances the overall rigidity of the M-shaped cover type protection structure, but also reduces the effective area of the side surface of the M-shaped cover type protection structure, is beneficial to smooth circulation of airflow when strong wind is blown in the weather, weakens the resistance of the two sides of the M-shaped cover type protection structure to resist the airflow, and lightens the violent left-right shaking or swinging degree of the M-shaped cover type protection structure.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a top view of the present invention;
FIG. 3 is a cross-sectional view taken along line I-I of FIGS. 1 and 2;
FIG. 4 is a cross-sectional view taken along line II-II of FIGS. 1 and 2;
the meanings of the marks in the above figures are as follows: 1-bearing steel wire rope, 2-protective net, 3-lamp belt, 4-warning mark, 5-rope frame, 501-top steel wire rope, 502-bottom steel wire rope, 503-vertical steel wire rope, 6-power switch box, 7-retaining wall, 8-high voltage cable pipeline, 9-foundation pit, 10-crown beam, 11-inclined supporting beam, 12-lattice column and 13-suspension steel wire rope.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Example 1
The high-voltage cable pipeline crosses the span suspension protection structure of the foundation pit, please refer to fig. 1 to 4, and comprises a protective net 2 and a rope frame 5 for enclosing the top surface and the side surface of the high-voltage cable pipeline 8;
the high-voltage cable line 8 penetrates through a foundation pit 9, two ends of the high-voltage cable line 8 are supported by a retaining wall 7, a crown beam 10 and an inclined support beam 11 in the foundation pit 9, and the high-voltage cable line 8 is suspended at the middle part of the foundation pit 9 through a suspension steel wire rope 13 and a bearing steel wire rope 1; in the utility model, the section of the rope frame 5 perpendicular to the laying direction of the high-voltage cable pipeline 8 is in an M shape, and the protective net 2 is fully laid on the top surface of the rope frame 5, so that the high-voltage cable pipeline 8 is in an M cover type, and the high-voltage cable pipeline 8 is protected from the top surface and the side surface of the suspended high-voltage cable pipeline 8.
Further, in order to provide better indication or warning effect for the high-voltage cable pipeline 8 crossing the span suspension construction area of the foundation pit 9 at night, in a preferred embodiment, the utility model further comprises: and the lamp belts 3 are arranged on the protective net 2 and the rope frame 5.
Further, in a preferred embodiment, the lamp strips 3 on the rope rack 5 are arranged on two sides of the rope rack 5 in a wavy manner; the lamp strip 3 positioned on the protective net 2 is distributed along the outline of the outer edge of the protective net 2 and the diagonal line; through this structure, not only make lamp area 3 can effectively cover the span that high tension cable pipeline 8 crossed the foundation ditch and suspend construction area in midair to play suggestion or warning effect night, also reduced lamp area 3's use amount simultaneously, with the energy saving, and still can reduce protection architecture side and top surface effective area, be favorable to the circulation of air current, with the resistance that weakens both sides and keep out the air current, thereby can avoid the violent shake or the swing degree that gale weather leads to.
Further, in order to facilitate the control of the operation time of the light strip 3, in a preferred embodiment, the present invention further comprises: and the power switch box 6 is arranged outside the foundation pit 9 and is electrically connected with the lamp strip 3.
Further, in a preferred embodiment, the protection net 2 is a double-layer protection net made of denima.
Further, in a preferred embodiment, the rope frame 5 is formed by tensioning a steel rope between two ends of the foundation pit 9 along the laying direction of the high-voltage cable pipeline 8.
Further, in a preferred embodiment, the steel wire rope 5 comprises a top steel wire rope 501 arranged at a position 1-1.5 m above the installation area of the high-voltage cable pipeline 8, bottom steel wire ropes 502 arranged at positions 0.5-1.2 m on two sides outside the installation area of the high-voltage cable pipeline 8, and a vertical steel wire rope 503;
the number of the top surface steel wire ropes 501 is 4-8, the section of the top surface steel wire ropes 501 perpendicular to the laying direction of the high-voltage cable pipeline 8 is a concave surface with high edge and low middle, the vertical projection line of the top surface steel wire ropes 501 on the outermost side is overlapped with the bottom surface steel wire ropes 502, and the vertical steel wire ropes 503 are connected between the top surface steel wire ropes 501 and the bottom surface steel wire ropes 502 on the same side.
Further, in a preferred embodiment, the vertical steel wire ropes 503 are arranged at intervals of 5-15 m along the laying direction of the high-voltage cable pipeline.
Further, in a preferred embodiment, the present invention further comprises: warning marks 4 arranged on the rope frame 5 and the retaining walls 7 on two sides of the foundation pit; preferably, the warning mark 4 is marked with the content of "high voltage exists below and the approach is forbidden", or "high voltage exists in the area and the approach is forbidden".
Example 2
In order to better understand the structure and beneficial effects of the present invention, please refer to fig. 1 to 4, this embodiment shows the installation and construction process of the span suspension protection structure of the high-voltage cable pipeline crossing the foundation pit in the actual engineering project:
1. top surface wire rope installation
On the retaining walls 7 at two sides in the underground structure foundation pit 9 at the position of the high-voltage cable pipeline 8 and at the position 1000mm above the high- voltage cable pipeline 8, 4 retaining walls 7 with the structural thickness of the retaining walls and the spacing of 1300mm are respectively drilled horizontally
Holes, and hooks are arranged at positions 300mm above 4 holes on the back of the retaining wall 7; wherein, the positions of the middle 2 holes are 50mm lower than the positions of the outermost holes at the two sides;
mixing 1 root of
One end of the top surface steel wire rope 501 penetrates through any 1 hole on any side retaining wall 7 in the underground structure foundation pit 9 and is hooked and wound for 4 circles above the hole on the back surface of the retaining wall 7, after the top surface steel wire rope 501 is folded back, the top surface steel wire rope is locked and fixed by using 3 buckle locks with the interval of 100mm, and the distance between the last 1 buckle lock and the end of the top surface steel wire rope 501 is not less than 100mm, so that the safety and reliability of locking and fixing the top surface steel wire rope 501 are improved; the other end of the top surface steel wire rope 501 penetrates through 1 corresponding hole on the retaining wall 7 on the other side in the underground structure foundation pit 9, a tensioner is used for straightening and tensioning the top surface steel wire rope 501, the top surface steel wire rope 501 is hooked and wound for 4 circles right above the hole on the back surface of the retaining wall 7, and the top surface steel wire rope 501 is used after being folded back3 intervals are fixed for 100 mm's buckle lock locking, and last 1 buckle lock is no less than 100mm apart from top surface wire rope 501 end, improves top surface wire rope 501 and locks fixed fail safe nature.
And (3) according to the installation method of the 1 st top surface steel wire rope 501, completing the installation of the rest 3 top surface steel wire ropes 501 in sequence. After installation, 4 top surface steel wire ropes 501 are made to be concave surfaces with high outermost edges at two sides and low middle, and the width of a vertical projection horizontal plane of the top surface steel wire ropes 501 exceeds 1m of each side of an installation area of the high-voltage cable pipeline 8.
2. Bottom wire rope installation
Firstly drilling holes and implanting anchoring steel bars, namely respectively drilling the vertical projection lines of the outermost edge steel wire ropes at the two sides of the steel wire rope 501 on the top surfaces of the crown beams 10 and the inclined supporting beams 11 at the two sides in the underground structure foundation pit 9 to the depth of
And implanting into the round hole with a length of 1000mm
And (5) hot rolling the ribbed steel bars. One end of the steel bar is vertically and outwards implanted into the inclined supporting beam 11 for 550mm, and the other end of the steel bar is vertically and outwards exposed out of the top surface of the inclined supporting beam for 450 mm;
then the bottom wire rope 502 is installed, namely 1 wire rope
One end of the bottom surface steel wire rope 502 is wound with the root of the implanted steel bar on the top surface of the crown beam 10 on any side in the underground structure foundation pit 9 for 4 circles, after the bottom surface steel wire rope 502 is folded back, the bottom surface steel wire rope is locked and fixed by using 3 buckle locks with the interval of 100mm, and the distance between the last 1 buckle lock and the end of the bottom surface steel wire rope 502 is not less than 100mm, so that the safety and reliability of locking and fixing the bottom surface steel wire rope 502 are improved; with the implantation reinforcing bar that corresponds on opposite side crown beam 10 top surface in bottom surface wire rope 502 other end and the underground structure foundation ditch 9, use the strainer to straighten, strain bottom surface wire rope 502, around twining implantation reinforcing bar root 4 rings, after turning back bottom surface wire rope 502, use 3 intervals to be 100 mm's buckle lock locking and fixing, 1 buckle lock at lastThe distance from the end of the bottom surface steel wire rope 502 is not less than 100mm, so that the safety and reliability of locking and fixing the bottom surface steel wire rope 502 are improved. The steel bars are embedded between the bottom steel wire rope 502 and the top surface of the inclined supporting beam 11, and the steel bars are bound firmly by using high-strength steel wires, so that the bottom steel wire rope 502 is prevented from swinging left and right when strong wind is blown in the weather.
And finishing the installation of the rest 1 bottom surface steel wire rope 502 according to the installation method of the 1 st bottom surface steel wire rope 502. The installation positions of the two bottom surface steel wire ropes 502 are respectively the positions of the installation areas of the high-voltage cable pipelines 8 extending outwards by 1m from two sides.
3. Vertical wire rope connection
In order to enhance the integral rigidity of the protection structure and reduce the severe left-right shaking or swinging degree of the protection structure when the strong wind blows in the weather, 1 vertical connecting point is respectively arranged between the top surface steel wire 501 and the bottom surface steel wire 502 of the outermost end at the same side along the laying trend of the high-voltage cable pipeline 8 at intervals of 10m, and the protection structure is used
The vertical connection is made to the wire rope 503 and the snap lock, and the specific connection operation is as follows:
at the vertical connection between the top surface steel wire 501 and the bottom surface steel wire 502 at the outermost end of the same side, the steel wire will be connected
One end of a vertical steel wire rope 503 is wound by two circles of the top steel wire rope 501, after the vertical steel wire rope 503 is folded back, the vertical steel wire rope is locked and fixed by using 3 buckle locks with the distance of 100mm, and the distance between the last 1 buckle lock and the end of the vertical steel wire rope 503 is not less than 100mm, so that the safety and reliability of the vertical locking and fixing of the vertical steel wire rope 503 are improved; will be provided with
The other end of the vertical steel wire rope 503 is wound by the bottom steel wire rope 502 for two circles, after the steel wire rope 503 is folded back, 3 buckle locks with the distance of 100mm are used for locking and fixing, and the distance between the last 1 buckle lock and the rope end of the steel wire rope 503 is not less than 100mm, so that the steel wire rope 503 is vertically locked by the improved steel wire rope 503The safety and the reliability of fixation are secured.
After the top surface steel wire rope 501, the bottom surface steel wire rope 502 and the vertical steel wire rope 503 are installed according to the steps 1, 2 and 3, the installation of the rope frame 5 is completed, and at the moment, the section of the rope frame 5 perpendicular to the laying direction of the high-voltage cable pipeline 8 is in an M shape, so that the rope frame 5 can enclose the top surface and the side surface of the high-voltage cable pipeline 8.
4. Protective net installation
After the top surface steel wire rope 501 and the bottom surface steel wire rope 502 are installed, the double-layer protective net 2 is installed above the top surface steel wire rope 501, the seam position of the second layer of protective net 2 along the laying trend of the high-voltage cable pipeline 8 needs to be staggered with the seam position of the first layer of protective net 2 along the laying trend of the high-voltage cable pipeline 8, and the staggered distance is not less than 1 m. The material of the protective net 2 is Dynima, and the specification is 70m in length and 4.5m in width. The protective net 2 is connected with outermost edge steel wire ropes on two sides of the top surface steel wire rope 501 through a ring buckling method, is connected with steel wire ropes at the middle position of the top surface steel wire rope 501 through enwinding of Dinima ropes, and is connected with the protective net 2 through a spiral enwinding method of the Dinima ropes. After installation, the double-layer protective net 2 and the top steel wire rope 501 are tightly and firmly attached together. The protective net has the function of shading, can weaken sunlight insolation, slows down the aging of the high-voltage cable pipeline, and also has the function of preventing high-altitude falling objects from smashing the high-voltage cable pipeline and damaging the suspension facilities of the high-voltage cable pipeline.
5. Lamp belt mounting
After the protective net 2 is installed, arranging the lamp belts 3 along the outline of the outer edge of the protective net 2 and the diagonal line, and arranging the lamp belts 3 on two side surfaces of the rope frame 5 in a wavy manner; the lamp strip 3 is a double-color LED lamp strip 3 with red and white light. Therefore, the red and white double-color light emitted by the LED lamps in the three directions of the top surface and the two sides of the protection structure can remind and warn mechanical operators to strictly forbid crossing a safety warning line to collide or break a high-voltage cable pipeline 8 to cause electric shock accidents during construction operation at night or in the daytime; through the ' wave ' shape installation of side LED lamp area 3, except having the whole rigidity that strengthens "M" word cover formula protection architecture, still reduce "M" word cover formula protection architecture's side effective area, be favorable to the smooth and easy circulation of air current when the weather blows the strong wind, weaken "M" word cover formula protection architecture both sides and keep out the air current resistance, alleviate "M" word cover formula protection architecture and take place acutely and left and right rocking or swing.
6. Warning sign installation
On the top surface steel wire 501 of the rope frame 5, warning marks 4 with high voltage and no approach are respectively hung below the steel wire 501 at intervals of 15 m; and the warning mark 4 of' high pressure and no approach in the area is sprayed on the wall surfaces of the retaining walls 7 on the two sides in the underground structure foundation pit 9 at the position of the high-voltage cable pipeline 8 in the area outside the protective structure. Through warning sign 4 that 5 both sides of rope sling hung and the warning sign 4 of spraying on 7 wall faces of retaining wall to remind, warn mechanical operation personnel and forbid crossing the collision of safety warning line or breaking high tension cable pipeline 8 and take place the electric shock accident night or daytime when the construction operation.
Claims (9)
1. High tension cable pipeline crosses the span of foundation ditch and suspends protection architecture in midair, including protection network (2), its characterized in that still includes: the rope frame (5) is used for enclosing the top surface and the side surface of the high-voltage cable pipeline (8); the section of the rope frame (5) perpendicular to the laying direction of the high-voltage cable pipeline (8) is in an M shape; the protective net (2) is fully paved on the top surface of the rope frame (5).
2. The high voltage cable line span suspension protection structure of claim 1, further comprising: and the lamp strip (3) is arranged on the protective net (2) and the rope frame (5).
3. The span suspension protection structure of the high-voltage cable pipeline crossing the foundation pit according to claim 2, wherein the lamp strips (3) on the rope frame (5) are arranged on two side surfaces of the rope frame (5) in a wavy manner; the lamp strip (3) positioned on the protective net (2) is arranged along the outer edge contour and the diagonal line of the protective net (2).
4. The span suspension protection structure of the high-voltage cable pipeline crossing the foundation pit according to claim 2, further comprising a power switch box (6) arranged outside the foundation pit and electrically connected with the lamp strip (3).
5. The high-voltage cable pipeline crossing the span suspension protection structure of the foundation pit according to claim 1, wherein the protection net (2) is a double-layer protection net made of Dinima.
6. The high-voltage cable pipeline crossing foundation pit span suspension protection structure as claimed in claim 1, wherein the rope frame (5) is formed by tensioning a steel wire rope between two ends of the foundation pit (9) along the laying direction of the high-voltage cable pipeline (8).
7. The high voltage cable line span suspension protection structure of claim 6, which traverses a foundation pit, characterized in that:
the rope frame (5) comprises a top surface steel wire rope (501) arranged at a position 1-1.5 m above an installation area of the high-voltage cable pipeline (8), bottom surface steel wire ropes (502) arranged at positions 0.5-1.2 m on two sides outside the installation area of the high-voltage cable pipeline (8) and vertical steel wire ropes (503);
the number of the top surface steel wire ropes (501) is 4-8, the section surface of the top surface steel wire ropes (501) perpendicular to the laying direction of the high-voltage cable pipeline (8) is a concave surface with a high edge and a low middle, the vertical projection line of the top surface steel wire ropes (501) on the outermost side is overlapped with the bottom surface steel wire ropes (502), and the vertical steel wire ropes (503) are connected between the top surface steel wire ropes (501) and the bottom surface steel wire ropes (502) on the same side.
8. The high-voltage cable pipeline cross foundation pit span suspension protection structure as claimed in claim 7, wherein the vertical steel wire ropes (503) are arranged at intervals of 5-15 m along the laying direction of the high-voltage cable pipeline (8).
9. The high-voltage cable pipeline crossing span suspension protection structure of a foundation pit as claimed in any one of claims 1 to 8, further comprising: and the warning marks (4) are arranged on the rope frame (5) and the retaining walls (7) on two sides of the foundation pit (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123055629.0U CN216551959U (en) | 2021-12-07 | 2021-12-07 | Span suspension protection structure for high-voltage cable pipeline crossing foundation pit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123055629.0U CN216551959U (en) | 2021-12-07 | 2021-12-07 | Span suspension protection structure for high-voltage cable pipeline crossing foundation pit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216551959U true CN216551959U (en) | 2022-05-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123055629.0U Active CN216551959U (en) | 2021-12-07 | 2021-12-07 | Span suspension protection structure for high-voltage cable pipeline crossing foundation pit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216551959U (en) |
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2021
- 2021-12-07 CN CN202123055629.0U patent/CN216551959U/en active Active
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