Steel pipe support structure for foundation pit construction

Abstract

The invention discloses a steel support structure, which comprises exterior-protected foundations. A plurality of steel support beams are diagonally supported between the opposite exterior-protected foundations; a connection beam is fixedly connected between every two adjacent steel support beams; each steel support beam comprises a main support beam which is a straight pipe, and two crosswise assistant support beams splayed outwards are respectively fixed on two ends of each main support beam; assistant support beam supports for supporting end faces of the assistant support beams are fixed on the exterior-protected foundations; the end faces of the assistant support beams are supported on the assistant support beam supports. According to the steel support structure provided by the invention, through the reasonable design of the assistant support beams and the main support beams, a splayed steel support system is formed on two ends of each main support beam, so that the structural strength of steel supports is improved, the problem that earthwork digging in a foundation pit cannot be carried out conveniently since the common steel support intervals are too close is effectively solved, and the engineering construction efficiency is improved. Meanwhile, the steel pipe support structure designed by the invention is adopted, so that the consumption of the steel supports in the foundation pit construction can be effectively reduced, and remarkable economic benefit is realized.

Description

technical field [0001] The invention relates to the technical field of foundation pit support maintenance, in particular to a steel pipe support structure used for foundation pit construction. Background technique [0002] In the existing deep foundation pit engineering, steel pipe support technology is mature and widely used. The steel pipe supports are generally linear, and there are multiple linear steel supports between the opposite enclosure foundations. Multiple linear steel supports are densely arranged, resulting in a small gap between adjacent steel supports, which makes excavation of foundation pit earthwork inconvenient. And in order to ensure the stability of the foundation pit, the quantity of steel supports used is also very large, resulting in high engineering cost. Contents of the invention [0003] The object of the present invention is to solve the deficiency of the above-mentioned background technology, and to provide a steel pipe support structure for...

AI Technical Summary

Problems solved by technology

The steel pipe supports are generally linear, and there are multiple linear steel supports between the opposite enclosure foundations. Multiple linear steel supports are densely arranged, resulting in a small gap between adjacent steel supports, and it is inconvenient to excavate the earthwork of the foundation pit

And in order to ensure the stability of the foundation pit, the number of steel supports used is also very large, resulting in high engineering cost

Images