Superplasticity concrete drilling bored concrete pile dado

The utility model provides a superplasticity concrete drilling bored concrete pile dado, is located stake hole (7) the inner wall surface of drilling bored concrete pile, the dado is the tube -shape, and its upper end is located the top surface of a hole (7) boulder bed (4) on every side, and its lo...

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Bibliographic Details
Main Authors SUN RUILONG, CHAI YINBO, WANG CHAOHUI, WANG FEI, SHI DONGQING
Format Patent
LanguageEnglish
Published 10.02.2016
Subjects
EMBANKMENTS
EXCAVATIONS
FIXED CONSTRUCTIONS
FOUNDATIONS
HYDRAULIC ENGINEERING
SOIL SHIFTING
UNDERGROUND OR UNDERWATER STRUCTURES
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Summary:The utility model provides a superplasticity concrete drilling bored concrete pile dado, is located stake hole (7) the inner wall surface of drilling bored concrete pile, the dado is the tube -shape, and its upper end is located the top surface of a hole (7) boulder bed (4) on every side, and its lower extreme is located the bottom surface of boulder bed (4), the dado is superplasticity concrete (1) and mixes induration (2) that back final set formed with boulder bed (4), the hole of drilling bored concrete pile pore wall has been sealed in induration (2) to hole wall collapse has been prevented, the slump degree was 160-180mm after superplasticity concrete (1) indicated the mix, and initial elastic modulus is less than 2000MPa, and limit deformation is greater than the concrete that 3%, coefficient of friction is less than 0.15. The effectual hole wall collapse that prevents of this dado ability has reduced construction cost simultaneously for the construction progress.
Bibliography:Application Number: CN20152566717U