A highway guardrail and sound barrier share an integrated steel anchor pipe foundation structure and construction method

Abstract

The invention discloses a foundation structure and a construction method of an integrated steel anchor pipe shared by a highway guardrail and a sound barrier. The steel anchor pipe of the invention has the advantages of rapid construction and low-cost construction, and the key is to rely on its superior anchorage deep anchored in the ground The performance can provide greater horizontal resistance for guardrails and sound barriers, ensuring the long-term safe use of the upper structure; at the same time, the reinforcement treatment of steel anchor pipes can improve the stability of the embankment slope. The invention includes material preparation and production, steel anchor pipe pile position measurement, lead hole driving into steel pipe, grouting liquid preparation and process, first grouting, pre-embedded vertical reinforcement and grout sealing sheet installation and other construction methods with mature technology , the process is reasonable, and the subgrade and road surface construction are carried out at the same time, with the characteristics of rapid construction. It has wide application prospects for installing roads with guardrails and sound barriers.

Description

technical field [0001] The invention relates to the field of highway auxiliary structures and foundation engineering, in particular to an integrated steel anchor pipe foundation structure and construction method for highway guardrails and sound barriers. Background technique [0002] As the most important and irreplaceable infrastructure for the development of the national economy and the travel of the people, highways play an important role. In the construction of expressways, in order to reduce the occurrence of traffic accidents, especially to provide a safe buffer line of defense for vehicles whose driving direction is out of order, various protective facilities have been continuously improved, such as anti-collision barriers; at the same time, when passing through important human settlements , dense residential areas, and specific areas with special requirements for noise, it is usually necessary to control the noise of the road, which can generally be achieved by layin...

AI Technical Summary

Problems solved by technology

However, when the above two auxiliary structures (things) of the highway are buried, they usually adopt their own independent foundation structures. This construction method wastes building materials and inevitably increases the cost of the project. Therefore, the design proposes that the guardrail and the sound barrier share The basic structure has great economic benefits for road construction

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