Minisize steel pipe pile pre-stressed anchor rod cable combined support system

Abstract

The invention relates to the technical field of construction site foundation pit support, in particular to a minisize steel pipe pile pre-stressed anchor rod cable combined support system. The minisize steel pipe pile pre-stressed anchor rod cable combined support system comprises a crown beam. Multiple pipe bodies are arranged in the length direction of a slope surface in a spaced manner. Multiple transverse waist beam connection structures are transversely arranged in the height direction of the slope surface. Multiple longitudinal waist beam connection structures are longitudinally arrangedin the length direction of the slope surface. The transverse waist beam connection structures and the longitudinal waist beam connection structures form a first netlike protection body. A second netlike protection body is arranged below the first netlike protection body. The first netlike protection body and the second netlike protection body are provided with fixing portions. Protection nets arearranged between the first netlike protection body and the pipe bodies as well as between the second netlike protection body and the pipe bodies. The protection nets, the first netlike protection body and the second netlike protection body are provided with concrete protection layers. Each concrete protection layer is provided with multiple drainage portions. The minisize steel pipe pile pre-stressed anchor rod cable combined support system is convenient to construct; a foundation pit side line is easy to control; prestress is applied to an anchor rod cable, and deformation of a side slope iseffectively controlled; and the minisize steel pipe pile pre-stressed anchor rod cable combined support system is high in reliability, obvious in effect and good in application value and popularization value.

Description

technical field [0001] The invention relates to the technical field of construction site foundation pit support, in particular to a micro-steel pipe pile prestressed bolt cable combination support system. Background technique [0002] With the development of urban construction, a large number of high-rise buildings have emerged around the original buildings. Often the construction site is narrow and close to the buildings. The excavation has a great impact on the stability of the slope, and the surrounding environment of the proposed site is complex. When the objects are close, there are many pipelines, and the deep foundation pit support with strict deformation requirements, the traditional grading excavation can no longer meet the requirements of deep foundation pit support, and there are many deficiencies, such as local instability of vertical excavation, excessive Excavation, blasting, rock breaking and unfavorable structural surfaces will cause the risk of slope inversi...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a micro-steel pipe pile prestressed bolt-cable combination support system for many deficiencies in the current traditional foundation pit support, which can effectively solve the problem of deep foundation pit support when there is no grading space. protection issues, to ensure the safety of deep foundation pits and surrounding buildings

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