A structure and construction method for preventing transmission line cement rods from pulling up

A technology of transmission lines and construction methods, which is applied in the direction of infrastructure engineering, protection devices, building types, etc., can solve the problems of costing funds and engineering quantities, and is difficult to promote on a large scale, so as to achieve small engineering quantities and inhibit the backfilling effect of sand and soil , the effect of shortening the construction period

Active Publication Date: 2018-01-30
STATE GRID CORP OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, there are methods such as anchoring the lower part of the cement pole to exert a downward force, adding a water-resistant layer on the surface of the cement pole to reduce the uplift resistance, and wearing "overshoes" on the cement pole...Although the above methods are all to a certain extent It reduces or solves the problem of pulling up the cement pole, but due to the limitation of the cost of funds and engineering, the shape of the cross-section of the cement pole and the geographical characteristics, the above method is difficult to promote on a large scale

Method used

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  • A structure and construction method for preventing transmission line cement rods from pulling up

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Embodiment 1

[0029] Embodiment 1: as figure 1 As shown, a structure for preventing the cement rods of transmission lines from pulling up includes cement rods 1, metal rings 2, metal wires 6, waste tires 8 and waste hubs 9. The waste tire 8 and the waste wheel hub 9 are co-installed and placed horizontally, the cement rod 1 is vertically arranged above the waste wheel hub 9, and the steel bar at the bottom of the cement rod 1 is welded to the contact part of the waste wheel hub 9, and a metal ring is set on the top of the cement rod 1 2. Several tensioned metal wires 6 are arranged between the metal ring 2 and the used wheel hub 9, and the several metal wires 6 are evenly distributed. One end of the metal wire 6 is welded to the edge of the waste wheel hub 9, and the other end is welded to the metal ring 2. The metal ring 2 is located above the ground surface. The cement pole 1, waste tires 8 and waste wheel hub 9 below the metal ring 2 are all buried in the The layer of soil below the sur...

Embodiment 2

[0034] Embodiment 2: a kind of construction method that prevents the cement pole of power transmission line from pulling up the structure, it comprises the following steps:

[0035] (1) dig a cement rod pit at the buried cement rod 1 position, and the depth of the cement rod pit is greater than the thickness of the permafrost layer 5;

[0036] (2) The waste tire 8 that is not inflated and the waste wheel hub 9 are installed in cooperation and placed horizontally on the bottom of the cement rod pit;

[0037] (3) set the metal ring 2 on the cement rod 1, and fix the metal ring 2 on the cement rod 1;

[0038] (4) Cement rod 1 is vertically erected in the cement rod pit, and the steel bar at the bottom of the cement rod 1 is welded together with the waste wheel hub 9 contact parts. At this moment, the metal ring 2 is above the horizontal plane;

[0039] (5) one end of several metal wires 6 is fixed on the edge of the waste wheel hub 9 at equal intervals respectively, and the othe...

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Abstract

The invention discloses a structure and a construction method for preventing cement poles of power transmission lines from pulling up. The structure comprises cement poles, a fixed ring, fixed pull wires, tires and wheel hubs. The construction method includes the following steps: (1) digging a cement pole pit at the position where the cement pole is buried; (2) installing an uninflated tire with a wheel hub and horizontally placing it on the bottom of the cement pole pit; Set the fixed ring on the cement pole; (4) set up the cement pole vertically in the cement pole pit; (5) install the fixed backguy; (6) inflate the tire, and then put the cement The pole hole is leveled with backfill and compacted so that the tires are under pressure and the construction is completed. The invention fundamentally solves the problem of pulling up cement rods caused by soil freezing in winter and thawing in summer in northern my country, and has simple structure, convenient construction, low cost of materials used, and short construction period, which greatly reduces the annual cost to solve the problem of pulling up cement rods. The cost of repair and maintenance required for the problem.

Description

technical field [0001] The invention relates to a structure for preventing cement poles from being pulled up and a construction method thereof, in particular to a structure for preventing cement poles from being pulled up in power transmission lines and a construction method thereof. Background technique [0002] Soil heaving and the existence of a certain thickness of permafrost are the prerequisites for the uplifting of cement poles on transmission lines. In recent years, my country's power infrastructure construction has developed rapidly, and the amount of projects for transmission lines passing through permafrost regions is increasing day by day. The phenomenon of pulling up, tilting or even falling of cement poles has become more and more serious, seriously threatening the safety of transmission lines. Safe and stable operation. [0003] In the northeastern and western alpine regions of my country, the methods of uplifting cement poles are still mainly used for reinfor...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04H12/22E02D31/14
Inventor 韩建军肖冰杨倩倩党乐祖向东王瑞史昌明郭金刚
Owner STATE GRID CORP OF CHINA
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