Supporting-anchoring composite reinforcing structure and method for rammed earth wall

Abstract

The invention discloses a supporting-anchoring composite reinforcing structure and method for a rammed earth wall. The supporting-anchoring composite reinforcing structure comprises an opposite penetrating anchoring structure, a repairing structure and a supporting frame structure which are arranged on a ruin wall, wherein the supporting frame structure is supported on a ruin wall body, the opposite penetrating anchoring structure penetrates through the ruin rammed earth wall body and is fixedly connected with a supporting-anchoring connecting piece of the supporting frame structure, gap grouting bodies are injected into gaps of the ruin wall body through the repairing structure, adobe brick masonry is repaired and built on the missing part of the ruin rammed earth wall body, and composite reinforcement of the ruin rammed earth wall body is achieved. The supporting-anchoring composite reinforcing structure is a composite reinforcing structure integrating anchoring, repairing and building and supporting technologies, and the local and overall stability problem caused by earthen ruins longitudinal cracks and foundation erosion diseases is solved; and on the premise of meeting the cultural relic protection principle, the local safety of the ruins is improved, stress concentration is relieved, and meanwhile the overall stability and the anti-overturning capacity of the wall are greatly improved.

Description

technical field [0001] The invention belongs to the field of reinforcement and protection of rammed-earth buildings, and in particular relates to a composite reinforcement structure and method of supporting and anchoring. Background technique [0002] The ancient city walls or modern rural dwellings in my country mainly use rammed earth or mud to build the walls, such as the city walls of the earth ruins along the Silk Road, the cave dwellings in Northwest China, the rammed earth dwellings in Xinjiang, and the earthen buildings in Fujian. Among them, the rammed-earth city wall has dual attributes of architecture and cultural relics, while the rammed-earth dwellings carry exquisite folk construction technology and rich ethnic cultural information, all of which have extremely high social value and historical value. [0003] In recent years, with the large-scale popularization and application of modern structural systems such as reinforced concrete structures and steel structur...

AI Technical Summary

Problems solved by technology

[0004] Although the current anchoring and patching technologies have been widely used in the reinforcement and protection of rammed earth walls, the above two types of reinforcement methods have different emphases, and the reinforcement technologies are relatively independent. It is difficult to ensure the safety and stability of the wall to the greatest extent. The disadvantages are reflected in the following aspects:

[0005] 1. The traditional full-length bonded anchorage system mainly deals with the local stability of the site caused by the development of longitudinal cracks, but the cement slurry in it is in direct contact with the soil and the anchor rod, which may cause adverse chemical reactions with the site soil and change the soil mass. The original nature, and it is not convenient for regular repairs, and it is difficult to meet the reversibility principle of the protection of rammed earth walls in ruins;

[0006] 2. Reinforcement can only partially support or fill the existing erosion or hole parts of the wall, reduce the local stress concentration, and avoid local cracking or collapse damage, but the overall stability and overturning resistance of the wall after reinforcement The capacity has not been greatly improved, and it is difficult to ensure that the wall does not undergo overall overturning, slippage and other damage under the action of horizontal external forces such as earthquakes;

[0007] 3. Anchorage is mainly to improve the integrity of the wall itself, and repairing is mainly to improve the stress distribution and local stability of the wall. The two focus on different points, but the safety of the wall under the action of external force depends on its own integrity and its stability. Comprehensive determination of the ability to resist collapse or overturning, it is difficult to ensure the safety of rammed earth walls with only a single method

Images