Composite lumbar support device

Abstract

The invention belongs to the technical field of building construction and relates to a waist rail supporting device made of a novel composite material. The waist rail supporting device is applied to foundation pit engineering; waist rails are recycled by using an auxiliary connecting member and are used for replacing the conventional reinforced concrete waist rail or section steel waist rail; thetwo ends of two symmetrical waist rail web plates with vertical structures are provided with double web plate waist rail flanges; the double web plate waist rail flanges and a waist rail web plate are integrated to form a transverse-H-shaped structure; columnar or tubular pole type anchor rods are inserted into the centers of upper and lower flanges in an up-down penetrating way; the circumferential sides of the waist rail web plate and the waist rail flanges at the joint between each waist rail and each anchor rod are coated with epoxy resin layers; the outer side of each epoxy resin layer is provided with a split reinforcing gasket; and a connecting member sleeve is arranged between two waist rails and used for connecting and reinforcing the waist rails. The waist rails made of composite materials have light dead weight and can be recycled, so that comprehensive economic benefit and environmental protection benefit are achieved, and the waist rail supporting device has low production cost and high popularization and application potentials.

Description

Technical field: [0001] The invention belongs to the technical field of building construction, and relates to a waist beam support device made of a new type of composite material, which is used for improving equipment and devices for new materials and new processes in foundation pit engineering, and realizes the circulation of the waist beam by using an attached connecting member Use to replace traditional reinforced concrete waist beams or steel waist beams. Background technique: [0002] At present, in construction, deep foundation pit support methods mainly include pile anchors, soil nailing walls, etc. The common disadvantage of these methods is that steel materials are expensive, resources cannot be reused, and are left underground forever. In order to realize the sustainable development of resources and the protection of urban environment, it has always been the goal of the industry to explore the use of new support materials and methods to prepare waist beams in found...

AI Technical Summary

Problems solved by technology

At present, in the practice of foundation pit engineering at home and abroad, the trend of developing from traditional materials to multi-performance composite materials has begun to appear, and small-scale engineering practices have been attempted, such as epoxy resin composite materials used as tie rods in foundation pit slopes Soil nails, anchor rods, composite material detachable panels, etc. in the support, but there is no research report on the composite material waist beam involved in this application, and no related patent technology disclosure

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