Prefabricated prestressing pipe pile composite supporting wall structure

Abstract

A pre-stress pipe pile composite retaining wall structure which is used in civil construction is formed by compositing prefab pre-stress pipe piles and mixture. The retaining wall comprises prefab pre-stress pipe piles (1), and the mixture (2); the mixture (2) is disposed between prefab pre-stress pipe piles disposed side by side and in the pipe cores to connect adjacent prefab pre-stress pipe piles (1) integrally and form a front row composite retaining wall plate (A). An intensity adjusting retainer (B) composed of prefab pre-stress pipe piles (1) and mixture (2) disposed in the prefab pre-stress pipe piles (1) is disposed at the outer side of the composite retaining wall plate (A) which is connected with the intensity adjusting retainer (B) by a coping (3). The mixture material is formed by mixing cement, expansive soil, coal ash and soil body, thereby diameters of the pile pipes can be further contracted, and intensity of the retaining structure can be adjusted flexibly and conveniently.The invention relates to a filling earth quick hit-solid control method comprises following steps: performing a light hit-solid test to the filling earth, determining a linear regression equation of the optimal moisture percentage and the wet density at the optimal attitude according to the obtained relationship between the optimal moisture percentage and the wet density at the optimal attitude; inputting parameters of the linear regression equation into computer control system program, obtaining a quick hit-solid control system representing filling earth property, detecting wet density on site of the filling earth on site, cutting the earth and screening same with a 20 mm screen, dividing the screened earth into three parts, preparing earth samples with three different moisture percentage, performing a standard hit-solid test to obtain three hit-solid wet density.

Description

technical field [0001] The structure of the utility model is a supporting structure used in civil construction. In particular, the invention relates to a composite supporting wall structure formed by compounding prefabricated prestressed pipe piles and mixing bodies. Background technique [0002] The prefabricated pipe pile composite support wall panel (patent number 200620125443.4) I applied for has many advantages such as high support rigidity, economical reliability, convenient construction, combination of soil retaining and water resistance, and small occupied space. For prefabricated components, the adjustment of the strength and stiffness of the supporting wall panels is not very flexible. Contents of the invention [0003] Technical problem: The purpose of this utility model is to provide a prefabricated prestressed pipe pile composite support structure, so that the diameter of the pipe pile can be further reduced, and the strength of the support structure can be a...

AI Technical Summary

Problems solved by technology

[0002] The prefabricated pipe pile composite support wall panel (patent number 200620125443.4) I applied for has many advantages such as high support rigidity, economical reliability, convenient construction, combination of soil retaining and water resistance, and small occupied space. As a prefabricated component, the strength and stiffness adjustment of the supporting wall panel is not very flexible

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