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Method and system for protecting cable by Bailey trusses

A technology for protecting cables and bailey racks, applied in cable installation, ground cable installation, excavation, etc., can solve problems such as cable setting conflicts, and achieve the effects of low cost, short construction period, and low engineering difficulty

Pending Publication Date: 2020-04-17
GUANGDONG SHUNDE POWER DESIGN INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims to overcome at least one defect of the above-mentioned prior art, and provides a method and system for protecting cables with Bailey racks, which are used to solve the problem of conflicts with the setting of cables during the excavation of subway foundation pits, and are used to protect cables in subway foundation pits. Protection of cables during pit excavation

Method used

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  • Method and system for protecting cable by Bailey trusses
  • Method and system for protecting cable by Bailey trusses
  • Method and system for protecting cable by Bailey trusses

Examples

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Embodiment 1

[0051] like figure 1 As shown, the present embodiment is a method for protecting cables with a Bailey frame, and the steps include:

[0052] S1: Measure and locate the cable pipe trench before excavating the subway foundation pit, and excavate the soil above the cable pipe trench;

[0053] S2: building a foundation pit continuous wall at both ends of the cable trench and reinforcing the outside of the foundation pit continuous wall;

[0054] S3: setting Bailey frame foundations at both ends of the cable trench and above the continuous wall of the foundation pit;

[0055] S4: Excavating trenches on both sides of the cable pipe trench, setting a Bailey frame on the basis of the Bailey frame, and placing the suspension structure of the Bailey frame in the groove;

[0056] S5: Starting from one side of the subway foundation pit, excavate the soil below the cable pipe trench step by step along the length direction of the cable pipe trench, and excavate the soil below the cable pi...

Embodiment 2

[0081] The method of embodiment 1 is applicable to a kind of Bailey frame protection cable system provided by this embodiment, combined with figure 2 , 3 As shown, in this embodiment, the system includes a cable duct trench 1, several transverse steel sections 2, a subway foundation pit 3, at least two Bailey frames 4, at least four Bailey frame foundations 5, crown beams 6 and A number of reinforced foundations 7, the subway foundation pit 3 includes the subway foundation pit main body, the subway foundation pit continuous wall 8 and the subway foundation pit bottom surface; On the top of the wall 8, the Bailey frame 4 is arranged on two Bailey frame foundations 5 respectively, the underside of the Bailey frame 4 is provided with a suspension structure 9, and the lower side of the cable pipe trench 1 is provided with several transverse section steels 2, and the horizontal The two ends of the section steel 2 are respectively connected with the suspension structures 9 of the ...

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Abstract

The invention discloses a method and system for protecting a cable by Bailey trusses. The method comprises the core steps that grooves are formed in two sides of cable pipe ditches, the Bailey trussesare arranged on Bailey truss foundations, and suspension structures of the Bailey trusses are placed in the grooves; one of side surfaces of subway foundation pits is selected for beginning, lower soil bodies of the cable ditches are excavated step by step in a segmental mode in the length direction of the cable ditches, transverse shape steel is erected below parts of the cable ditches corresponding to the segments after the excavation of the lower soil bodies of the cable ditches of each segment is finished, the lower soil bodies of the cable ditches of the next segment is excavated after the transverse shape steel is welded and fixed to the suspension structures of the Bailey trusses, until the other side surfaces of the subway foundation pits are excavated; and when subway construction conflicts with the cable arrangement, and if the cable cannot be transferred, the cable can be effectively protected in the process of excavating the subway foundation pits through the method and system.

Description

technical field [0001] The invention relates to the field of cable relocation, and more particularly, to a method and a system for protecting cables with Bailey racks. Background technique [0002] With the acceleration of urbanization in our country, the ground transportation has been unable to adapt to the increasing traffic volume demand generated by existing economic activities and people's lives, and traffic problems have become increasingly serious. Urban rail transit has the characteristics of fast, safe, and large capacity. Timely evacuation of a large number of dense crowds, and because of its greatly improved accessibility to areas along the line, urban rail transit will be vigorously developed. [0003] The current power pipeline has formed a power network, and the power cables extend in all directions. The development of urban rail transit will inevitably conflict with the existing power pipeline, and the existing power pipeline needs to be relocated. However, i...

Claims

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Application Information

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IPC IPC(8): E02D17/02H02G9/02
CPCE02D17/02H02G9/02
Inventor 连继业王绪湘邱康明刘鹤锋邹杰平江国华王镇烁何亮李冠铭刘庆权
Owner GUANGDONG SHUNDE POWER DESIGN INST CO LTD
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