Long-term Influence of Cement Hydration Heat on Ground Temperature Around Energy Piles

2018 International Conference on Civil and Hydraulic Engineering

土木建筑工程;水利工程

Junyu, Zhao^1 ; Gang, Ming^1 ; Guowei, Yang^2 ; Xiaojia, Hu^2

School of Mechanical and Power Engineering, Tongji University, Shanghai, China^1

Shanghai Rail Transit Line 13 Development Co., Ltd., Shanghai, China^2

关键词: Cement hydration;    Energy piles;    Ground temperature;    Ground temperature field;    Hydration heat;    Pile groups;    Single piles;    Temperature rise;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/189/5/052073/pdf
DOI  :  10.1088/1755-1315/189/5/052073

学科分类：土木及结构工程学

来源: IOP

【 摘 要 】

The long-term (one year) influence of hydration heat released by cement during solidification on the ground temperature around the energy piles is discussed in this paper. The one-dimensional multi-layer medium model and the Green's function method are used to obtain the analytical solution of the ground temperature field. The influences of several factors on the magnitude of the temperature rise are discussed. The results show that the pile diameter has the most significant effect on the ground temperature around a single pile, and the temperature rise in the pile group can reach up to 3.4 °C in some cases.