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Electric transmission line iron tower excavation type rock foundation mechanical excavating method

A technology for transmission line towers and rocks, which is applied in excavation, infrastructure engineering, earthmoving machines/shovels, etc., can solve the problems of excessive blasting, unevenness, and impact on the ecological environment at the edge of the pit body, and achieves the goal of improving construction efficiency. Effect

Inactive Publication Date: 2014-04-30
STATE GRID CORP OF CHINA +2
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The foundation engineering of the transmission line iron tower located in the rocky area on the mountain is generally constructed by explosive rock breaking method. During the whole process of blasting operation, if the operation is not careful, it will cause major vicious accidents. Flying stones, noise, dust, shock waves, etc. , affecting the surrounding ecological environment
The rock foundation of the iron tower should be blasted on a smooth surface, and the surrounding rock left after the blasting is in a flat state. Therefore, there are high technical requirements for the amount of explosives, time difference, and empty holes. If the operation is not done properly, excessive blasting or Unevenness is unfavorable to foundation pouring and stability is affected

Method used

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  • Electric transmission line iron tower excavation type rock foundation mechanical excavating method
  • Electric transmission line iron tower excavation type rock foundation mechanical excavating method
  • Electric transmission line iron tower excavation type rock foundation mechanical excavating method

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Embodiment Construction

[0038] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0039] As shown in the figure, a transmission line iron tower excavation type rock foundation mechanical excavation method disclosed by the present invention includes the following steps:

[0040] According to the center pile of the tower position and the forward direction of the line in the design drawing, the value of the root opening of the iron tower structure is used for stakeout. The uphill side is the short leg, and the downhill side is the long leg. Then, the center of gravity of the four legs of the iron tower is the center of the pit body of the legs. .

[0041] The iron tower legs after lofting are on the slope surface, and 1m is added to the edge of the projected surface of the pit body at the leg position, and excavated into a plane as the construction base.

[0042] For excavated circular pits, the thickness of the rock layer is ...

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Abstract

The invention relates to the field of electric construction, in particular to an electric transmission line iron tower excavation type rock foundation mechanical excavating method. The method includes: positioning and lofting, removing vegetation and opening foundation surface, gridding punching, mechanically cracking, crushing with air picks, trimming, cleaning gravels, and gridding punching in a circulation manner. By the method, safety and reliability are achieved, and construction efficiency is increased.

Description

[0001] technical field [0002] [0003] The invention relates to the field of electric power construction, in particular to a mechanical excavation method for a transmission line iron tower excavation type rock foundation. [0004] Background technique [0005] The transmission line passes directly through the mountains, in order not to affect the living environment of the masses, in order not to hinder the local economic development and urban development, and in order to save land resources and investment in power grid construction. The foundation engineering of the transmission line iron tower located in the rocky area on the mountain is generally constructed by explosive rock breaking method. During the whole process of blasting operation, if the operation is not careful, it will cause major vicious accidents. Flying stones, noise, dust, shock waves, etc. , affecting the surrounding ecological environment. The rock foundation of the iron tower should be blasted on a s...

Claims

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Application Information

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IPC IPC(8): E02F5/30E02D17/00E02D27/42
Inventor 戚柏林丁自强胡宁怡应剑烈黄水龙钱权
Owner STATE GRID CORP OF CHINA
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