High-voltage cable protection structure for building construction

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By installing MJS water-stop curtain piles and reinforcement piles around the high-voltage cable, the protection problem of the high-voltage cable in a confined space was solved, achieving safe and controllable construction and cost savings.

CN223583759UActive Publication Date: 2025-11-21CHINA CONSTR EIGHT ENG DIV CORP LTD

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Patent Information

Application Number: CN202520296507.X
Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner
Filing Date: 2025-02-24
Publication Date: 2025-11-21
Estimated Expiration: 2035-02-24

AI Technical Summary

Technical Problem

In building construction, the protection of 110KV high-voltage cables is limited by the confined space. Existing protection methods are costly, involve complicated construction procedures, and are easily affected by construction disturbances.

Method used

The first and second MJS water-stop curtain piles and reinforcement piles are used to form a water-stop curtain and reinforcement pile structure. The micro-disturbance MJS process is used to construct the structure in a confined space to ensure the stability of the soil under the high-voltage cable.

Benefits of technology

It effectively prevents horizontal displacement and settlement of high-voltage cables during foundation excavation, ensures cable safety, reduces soil disturbance during construction, and saves costs and construction time.

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Abstract

The utility model discloses a high-voltage cable protection structure for building construction. The high-voltage cable protection structure comprises a first MJS waterproof curtain pile, a second MJS waterproof curtain pile and a reinforcing pile, the multiple first MJS waterproof curtain piles are vertically constructed between the high-voltage cable and a construction area, every two adjacent first MJS waterproof curtain piles are engaged with each other, and a first waterproof curtain is formed on the side, close to the construction area, of the high-voltage cable in the length direction of the high-voltage cable; the multiple second MJS waterproof curtain piles are vertically constructed, every two adjacent second MJS waterproof curtain piles are engaged with each other, and second waterproof curtains perpendicular to the length direction of the high-voltage cable are formed at the two ends of the first waterproof curtain; and a plurality of reinforcing piles are vertically constructed among the first waterproof curtain, the second waterproof curtain and the construction area to form a reinforcing pile structure. The utility model relates to the field of building construction, and can solve the problem that in the prior art, protection of a high-voltage cable 110KV pipeline during building construction is limited by a narrow site space.

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Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of building construction, especially relates to a high voltage cable protection structure of building construction. BACKGROUND

[0002] In the building construction process, for example, when erecting super-long large-span double-curved steel continuous bridge on the city main road, the only motor lane on the city main road cannot be occupied, otherwise safety accidents are prone to occur, causing traffic congestion, and only the green belt and sidewalk can be occupied to make temporary installation of the foundation and column. During the foundation excavation construction, the surrounding 110KV high voltage cable pipeline needs to be protected to prevent settlement and displacement deformation of the 110KV high voltage cable pipeline during the foundation pit excavation, which may cause the 110KV high voltage cable pipeline to break, affecting the urban power supply or causing personnel casualties.

[0003] At present, the high voltage cable 110KV pipeline protection construction method under the construction of large-span double-curved steel continuous bridge includes cable migration, concrete side packing reinforcement of power pipe trench, and protection technology such as driving Larsen steel sheet pile or bored pile. However, the cost of cable migration is high, the construction procedures are complicated, the construction period is delayed, and the construction site problems cannot be quickly solved. Due to the limitation of narrow space, if the side packing reinforcement, driving Larsen steel sheet pile or bored pile is within 5 meters of the high voltage cable 110KV pipeline, the site is narrow, the construction will cause great disturbance to the soil and affect the high voltage cable 110KV pipeline, which may cause the protection construction to be unable to proceed normally, and the later soil excavation and other building construction may greatly affect the power safety of the high voltage cable. Therefore, it is necessary to provide a high voltage cable protection structure for building construction, which can solve the problem that the protection of the high voltage cable 110KV pipeline during building construction is limited by the narrow space. SUMMARY

[0004] The utility model aims at providing a high voltage cable protection structure for building construction, which can solve the problem that the protection of the high voltage cable 110KV pipeline during building construction is limited by the narrow space.

[0005] The utility model is realized as follows:

[0006] The utility model provides a high -voltage cable protection structure of building construction, including first MJS waterproof curtain stake, second MJS waterproof curtain stake and reinforcing stake, a plurality of first MJS waterproof curtain stake vertical construction between high -voltage cable and construction area, and the first MJS waterproof curtain stake of adjacent two mutually engages, and the first waterproof curtain is formed to the length direction of high -voltage cable on the side of high -voltage cable close to construction area, a plurality of second MJS waterproof curtain stake vertical construction, and the second MJS waterproof curtain stake of adjacent two mutually engages, and the second waterproof curtain is formed to the length direction of high -voltage cable in the both ends of first waterproof curtain, a plurality of reinforcing stake vertical construction between first waterproof curtain, second waterproof curtain and construction area, and the reinforcing stake structure is formed.

[0007] The first MJS waterproof curtain stake is provided with a vertical plane, and the distance between the vertical plane of the first MJS waterproof curtain stake and the high-voltage cable is not more than 5 m.

[0008] The bite width of the adjacent two first MJS waterproof curtain stakes is consistent with the radius of the first MJS waterproof curtain stake.

[0009] The top of the plurality of first MJS waterproof curtain stakes and the plurality of second MJS waterproof curtain stakes is connected into a whole through a pressing roof beam.

[0010] The first MJS waterproof curtain stake and the second MJS waterproof curtain stake are provided with a steel bar.

[0011] The second MJS waterproof curtain stake is provided with a vertical plane, and the distance between the vertical plane of the second MJS waterproof curtain stake and the high-voltage cable is not more than 5 m.

[0012] The bite width of the adjacent two second MJS waterproof curtain stakes is consistent with the radius of the second MJS waterproof curtain stake, and the second MJS waterproof curtain stake is engaged with the first MJS waterproof curtain stake at the end of the first waterproof curtain.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. The utility model discloses a first MJS waterproof curtain pile and a second MJS waterproof curtain pile of internal interpolation shaped steel are formed first waterproof curtain and second waterproof curtain between construction area and high -voltage cable, and the soil under high -voltage cable is reinforced, can effectively prevent the soil under high -voltage cable from horizontal displacement change when foundation excavation construction, guarantee the safe use of high -voltage cable, simultaneously, the disturbance of the construction process of the waterproof curtain pile formed by the slight disturbance MJS process to the soil is little, and the requirement of construction space is low, can satisfy the narrow space construction requirement of the horizontal distance within 5m of high -voltage cable.

[0015] 2. The utility model discloses a reinforcing pile, and the reinforcing pile forms an integral structure with the first MJS waterproof curtain pile and the second MJS waterproof curtain pile, further reinforcing the soil under high -voltage cable, can effectively prevent the soil under high -voltage cable from settlement when foundation excavation construction, guarantee the safe use of high -voltage cable, do not affect the electricity of surrounding residents, can also guarantee the safety controllable of on -the -spot construction, is favorable to the cost and the period of construction of saving. DRAWINGS

[0016] Figure 1 It is the plane view of the high -voltage cable protection structure of building construction of the utility model,

[0017] Figure 2 It is the elevation section view of the high -voltage cable protection structure of building construction of the utility model.

[0018] In the drawing, 1 is first MJS waterproof curtain pile, 11 is shaped steel, 2 is second MJS waterproof curtain pile, 3 is reinforcing pile, 4 is high -voltage cable, 5 is building structure, 6 is roof beam. SPECIFIC IMPLEMENTATION

[0019] The utility model will be further explained below in combination with the drawings and specific embodiment.

[0020] Please refer to the drawings Figure 1 and the drawings Figure 2 , a kind of high -voltage cable protection structure of building construction, including first MJS (MetroJet System, i.e. all directions high -voltage injection) waterproof curtain pile 1, second MJS waterproof curtain pile 2 and reinforcing pile 3;Several first MJS waterproof curtain piles 1 are vertically constructed between high -voltage cable 4 and construction area, and the first MJS waterproof curtain pile 1 of adjacent two is mutually engaged, and forms first waterproof curtain along the length direction of high -voltage cable 4 on the side of high -voltage cable 4 close to construction area;Several second MJS waterproof curtain piles 2 are vertically constructed, and the second MJS waterproof curtain pile 2 of adjacent two is mutually engaged, and forms the second waterproof curtain perpendicular to the length direction of high -voltage cable 4 in the two ends of first waterproof curtain;Several reinforcing piles 3 are vertically constructed between first waterproof curtain, second waterproof curtain and construction area, and form reinforcing pile structure.

[0021] The first MJS waterproof curtain pile 1, the second MJS waterproof curtain pile 2 and the reinforcing pile 3 are constructed by using the micro-disturbance MJS process of the prior art, the construction of the MJS pile has small disturbance to the soil body, and can be performed in a narrow space (within 5m of the horizontal distance between the construction area and the high-voltage cable 4), preferably, the diameter of the first MJS waterproof curtain pile 1 and the second MJS waterproof curtain pile 2 is 2400mm, the pile length is 16m, and the spray is 180°, and the construction parameters can also be adjusted according to the actual construction conditions, and the construction process is not described here.

[0022] The first waterproof curtain formed by the first MJS waterproof curtain pile 1 and the second MJS waterproof curtain pile 2 and the reinforcing pile structure formed by the reinforcing pile 3 can double-reinforce the soil body below the high-voltage cable 4, and isolate the construction area from the high-voltage cable 4, so as to ensure that the disturbance to the soil body below the high-voltage cable 4 during the construction process does not affect the power safety of the high-voltage cable 4, and the high-voltage cable 4 does not need to be relocated, thereby effectively controlling the construction period and the construction cost.

[0023] Please refer to the accompanying drawings Figure 1 , the cross section of the first MJS waterproof curtain pile 1 is a semicircular structure, the vertical plane of the first MJS waterproof curtain pile 1 faces the high-voltage cable 4, and the distance between the vertical plane of the first MJS waterproof curtain pile 1 and the high-voltage cable 4 is not more than 5m.

[0024] The first MJS waterproof curtain pile 1 with a semicircular cross section can reduce the requirement for horizontal space during construction, thereby reducing the demand for construction space while meeting the requirement for reinforcing the soil body, so as to adapt to the construction condition that the horizontal distance from the high-voltage cable 4 is not more than 5m.

[0025] Please refer to the accompanying drawings Figure 1 , the top portions of the plurality of first MJS waterproof curtain piles 1 and the plurality of second MJS waterproof curtain piles 2 are connected into a whole by the top pressing beam 6.

[0026] The top pressing beam 6 can be a reinforced concrete beam, which is constructed by using the conventional steel bar binding and concrete pouring process, and will not be described here. By arranging the top pressing beam 6, the first waterproof curtain and the second waterproof curtain are connected into a whole waterproof curtain, and the structure has high integrity and strength, and can effectively reinforce the soil body below the high-voltage cable 4 during the construction process.

[0027] Please refer to the accompanying drawings Figure 2 , the first MJS waterproof curtain pile 1 and the second MJS waterproof curtain pile 2 are provided with the section steel 11.

[0028] The inserted steel is a conventional construction process of the MJS pile, which can improve the structural strength of the MJS pile, and the construction process is not repeated here. Through the insertion of the steel 11, the structural strength of the waterproof curtain can be further improved, thereby ensuring the reinforcement effect of the soil under the high-voltage cable 4.

[0029] Preferably, the engagement width of the two adjacent first MJS waterproof curtain piles 1 is consistent with the radius of the first MJS waterproof curtain pile 1.

[0030] The engagement width of the two adjacent first MJS waterproof curtain piles 1, the number of the first MJS waterproof curtain piles 1 can be adaptively adjusted according to the actual construction conditions.

[0031] Please refer to the accompanying drawings Figure 1 , the cross section of the second MJS waterproof curtain pile 2 is a semicircular structure, the engagement width of the two adjacent second MJS waterproof curtain piles 2 is consistent with the radius of the second MJS waterproof curtain pile 2, and the second MJS waterproof curtain pile 2 is engaged with the first MJS waterproof curtain pile 1 at the end of the first waterproof curtain.

[0032] The engagement width of the two adjacent second MJS waterproof curtain piles 2, the number of the second MJS waterproof curtain piles 2, and the engagement width of the second MJS waterproof curtain pile 2 and the first MJS waterproof curtain pile 1 can be adaptively adjusted according to the actual construction conditions.

[0033] Please refer to the accompanying drawings Figure 1 , the two adjacent reinforcing piles 3 are engaged, and each reinforcing pile 3 is engaged with its adjacent first MJS waterproof curtain pile 1 and second MJS waterproof curtain pile 2, so that the first waterproof curtain, the second waterproof curtain and the reinforcing pile form an integral whole.

[0034] The first waterproof curtain, the second waterproof curtain and the reinforcing pile are connected to form an integral whole, which ensures the integrity and structural strength of the entire reinforcing structure, thereby further improving the reinforcement effect of the soil under the high-voltage cable 4.

[0035] Please refer to the accompanying drawings Figure 1 and Figure 2, Embodiment 1: The 3#-4# large-span double-curved steel continuous bridge of a building project in Hangzhou crosses the urban main road Dongxin Road, the width of Dongxin Road is 40 meters, it is an 8-lane road in both directions; the span is 72.5 meters, the highest installation height is 19.4 meters, the net height under the large-span double-curved steel continuous bridge is 12.495 meters, the horizontal plane and the vertical plane of the large-span double-curved steel continuous bridge are curved surfaces, and the vertical column of the large-span double-curved steel continuous bridge is a Y-shaped column; the building project is located above the Hangyao subway station and the Hangyao bus station, and there are 220KV high-voltage cables on the east side and 110KV high-voltage cables on the west side. The foundation excavation depth is-5.35 meters, and the distance from the 110KV and 220KV high-voltage cables is only 2.5 meters, so the protection structure of the utility model is used on the site to protect the high-voltage cables during construction.

[0036] During the specific construction, the micro-disturbance MJS inserted steel process is used to form a semicircular MJS jet grouting pile with a diameter of 2400mm as the first MJS water stop curtain pile 1, the pile length is 16m, and the inserted steel is 700*300*12*24mm. The occlusion width of the six first MJS water stop curtain piles 1 is 1200mm, and the first water stop curtain is formed.

[0037] The micro-disturbance MJS inserted steel process is used to form a semicircular MJS jet grouting pile with a diameter of 2400mm as the second MJS water stop curtain pile 2, the occlusion width of the two second MJS water stop curtain piles 2 is 1200mm, and the second water stop curtain is formed between the first water stop curtain and the construction area; the occlusion width of the four second MJS water stop curtain piles 2 is 1200mm, and the second water stop curtain is formed between the other end of the first water stop curtain and the construction area. One end of the second water stop curtain is occluded with the end of the first water stop curtain, and the occlusion width is 1200mm, and the other end of the second water stop curtain is connected with the existing building structure 5.

[0038] The top of the first water stop curtain and the second water stop curtain is constructed to be a pressure roof beam 6 with a height of 800mm, the pressure roof beam 6 is connected with the first MJS water stop curtain pile 1 and the second MJS water stop curtain pile 2 to form an integrated water stop curtain.

[0039] The micro-disturbance MJS inserted steel process is used to form a full-circle 2400mm MJS in-pit reinforced jet grouting pile, i.e. a reinforcing pile 3, with a diameter of 2400mm, and the effective pile length is 5m, the four reinforcing piles 3 are sequentially occluded and occluded with the first MJS water stop curtain pile 1 and the second MJS water stop curtain pile 2 adjacent thereto to form a reinforcing pile structure.

[0040] The first MJS waterproof curtain pile 1 and the second MJS waterproof curtain pile 2 are constructed by using a micro-disturbance MJS process, and the soil of the 110KV high-voltage cable without a foundation is not disturbed. Meanwhile, the horizontal distance between the first waterproof curtain and the 110KV high-voltage cable is only 1.3m, and the micro-disturbance MJS process can meet the construction requirements of the protective structure within 5m from the high-voltage cable, and ensure the safety and controllability of the construction process.

[0041] Through the double protection of the waterproof curtain structure and the reinforcing pile structure, the soil under the 110KV high-voltage cable is effectively reinforced, and in the construction process such as foundation pit excavation, the horizontal displacement of the 110KV high-voltage cable is controlled within 15mm, and the settlement displacement is controlled within 20mm, which meets the protection requirements of the power pipeline and effectively protects the safe use of urban power.

[0042] The above is only a preferred embodiment of the present application, and is not used to limit the protection scope of the present application, therefore, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A high voltage cable protection structure for construction work, characterised in that: The utility model provides a kind of high-voltage cable construction method, including first MJS waterproof curtain stake (1), second MJS waterproof curtain stake (2) and reinforcing stake (3);Several first MJS waterproof curtain stakes (1) are vertically constructed between high-voltage cable (4) and construction area, and the first waterproof curtain is formed along the length direction of high-voltage cable (4) on the side of high-voltage cable (4) close to construction area, with adjacent two first MJS waterproof curtain stakes (1) engaging each other;Several second MJS waterproof curtain stakes (2) are vertically constructed, and the second waterproof curtain is formed perpendicular to the length direction of high-voltage cable (4) on both ends of the first waterproof curtain, with adjacent two second MJS waterproof curtain stakes (2) engaging each other;Several reinforcing stakes (3) are vertically constructed between the first waterproof curtain, the second waterproof curtain and the construction area, forming a reinforcing stake structure.

2. A construction high voltage cable protection structure according to claim 1, characterised in that: The first MJS waterproof curtain stake (1) has a semicircular cross-section, and the vertical plane of the first MJS waterproof curtain stake (1) faces the high-voltage cable (4) and is spaced apart from the high-voltage cable (4) by no more than 5 m.

3. A construction high voltage cable protection structure according to claim 2, characterised in that: The engaging width of the adjacent two first MJS waterproof curtain stakes (1) is consistent with the radius of the first MJS waterproof curtain stake (1).

4. A construction high voltage cable protection structure according to claim 1, characterized in that: The top of the first MJS waterproof curtain stakes (1) and the second MJS waterproof curtain stakes (2) are connected into a whole by a pressing beam (6).

5. A high voltage cable protection structure for construction work according to claim 1 or 4, characterized in that: The first MJS waterproof curtain stake (1) and the second MJS waterproof curtain stake (2) are internally provided with a profile steel (11).

6. A construction high voltage cable protection structure according to claim 1, characterized in that: The second MJS waterproof curtain stake (2) also has a semicircular cross-section, and the engaging width of the adjacent two second MJS waterproof curtain stakes (2) is consistent with the radius of the second MJS waterproof curtain stake (2).

7. A construction high voltage cable protection structure according to claim 1, characterized in that: The adjacent two reinforcing stakes (3) are engaged, and each reinforcing stake (3) is engaged with the adjacent first MJS waterproof curtain stake (1) and the second MJS waterproof curtain stake (2), so that the first waterproof curtain, the second waterproof curtain and the reinforcing stake structure form a whole.