Discussion on Statics Numerical Simulation of 3D Printed Concrete Hollow Gravity Dam

Abstract

Abstract: There are relatively few applications of 3D printed concrete technology in water conservancy projects, currently. A small hollow gravity dam with a height of 10 m was taken as the research object, based on ANSYS software to simulate and discuss the bearing capacity of 3D printed concrete hollow gravity dam under the action of self-weight pressure and hydrostatic pressure. The impact of weak interlayers on the bearing capacity of hydraulic structures was discussed.The results show that under the action of self-weight pressure and hydrostatic pressure, the 10 m high 3D printed small concrete hollow gravity dam has no major deformation and can perform its normal use function. There is an over-stress zone at the upstream heel of the hollow gravity dam, but the area is extremely small and can be solved by adding steel bars and other measures. A tensile stress value that exceeds the tensile strength of the weak interlayers appears at the position of the hollow part near the upstream surface. Measures must be taken to enhance the bonding ability of weak interlayers or set up steel trusses to offset tensile stress to ensure the safety and reliability of the dam.

Key words: 3D printing, concrete, hollow gravity dam, hydrostatic pressure, self-weight pressure, weak interlayer

CLC Number:

TU528

LIU Xiaopeng, FENG Jingjing, LIU Zhongqiu, ZHOU Jing. Discussion on Statics Numerical Simulation of 3D Printed Concrete Hollow Gravity Dam[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2021, 40(6): 1905-1910.

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