Method for lifting base plane of power transmission line tower by adopting steel pipe connecting leg

Abstract

The invention discloses a method for lifting the base plane of a power transmission line tower by adopting a steel pipe connecting leg, and relates to the technical field of high-voltage power transmission lines. The method comprises the following steps of lifting an angle steel tower; connecting a steel pipe main member with an angle steel tower main member by using a flange; connecting the main members with a diagonal member by using a plug board; embedding steel pipe pins. According to the method, the problems of higher earth filling time consumption and strict construction quality requirements of an earth filling scheme can be effectively solved, the condition that a body work amount is increased by the great horizontal displacement of the ground when a pile foundation scheme is adopted is avoided, and the shortcomings of long concrete curing time and larger using amounts of reinforcements and concrete of a reinforced concrete frame structure scheme are overcome.

Description

Technical field: [0001] The invention relates to the technical field of high-voltage transmission lines, in particular to a method for raising the base surface of a transmission line pole and tower. Background technique: [0002] When the pile top elevation of the new angle steel tower of the existing high-voltage transmission line is lower than the design elevation of the planned road, the base surface of the new angle steel tower needs to be raised on the basis of the central pile. There are various ways to raise the angle steel tower foundation, mainly including filling method, pile Foundation method and reinforced concrete frame structure method, etc., but these methods have disadvantages such as long construction period, high investment in the body, and difficulty in construction. Invention content: [0003] The purpose of the present invention is to provide a method of adding steel pipe legs at the foot of the angle steel tower. This method forms a space lattice stru...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a method of adding steel pipe legs at the foot of the angle steel tower. This method forms a space lattice structure through circular steel pipes, round steel or section steel, effectively solving the time-consuming problem of filling soil. The problem of long length and strict construction quality requirements overcomes the situation that the large horizontal displacement of the ground in the pile foundation scheme causes the increase of the main body engineering volume, and avoids the disadvantages of the reinforced concrete frame structure scheme, such as long concrete curing time and relatively large amount of steel and concrete.

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