Thermal analysis and air temperature prediction in TBM construction tunnels
Thermal analysis and air temperature prediction in TBM construction tunnels
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TBM 施工隧道热分析和气温预测
DOI:
10.1016/j.applthermaleng.2019.113822
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发表时间:
2019-07
影响因子:
6.4
通讯作者:
Hu Hui
中科院分区:
文献类型:
--
作者:
Wang Feng;Luo Feiyu;Huang Yubing;Zhu Lei;Hu Hui
In this work, field tests on the air temperature in the TBM (tunnel boring machine) room are initially carried out for TBM on and off, respectively. A simulation model is subsequently developed and reproduced the tests. The comparison shows an acceptable agreement, thus this model is adopted to study effects of RT (rock temperature), TBM utilization factor and construction ventilation on the air temperature in the TBM room. The results show the air temperature reaches a steady state after 20 min. The steady air temperature increases linearly with the increase of RT and TBM utilization factor. The air temperature is higher than 28 °C when RT is greater than 17.7 °C or when TBM utilization factor is greater than 38.0%. Effects of construction ventilation are discussed as well. The air temperature is observed to decreases in a form of parabola with the increase of fresh air volume, whereas it increases linearly with the increase of fresh air temperature. As a result, it can be found that ventilation is a very useful method to reduce the air temperature in the TBM room. But it is not enough to provide a workable and comfortable thermal environment when RT is higher than 45 °C.
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DOI:
10.1016/j.ijheatmasstransfer.2018.10.014
发表时间:
2019-02
影响因子:
5.2
作者:
Xiaomin Wang;Li-Song Zhang;Chi-Chain Yang;Na Liu;W. Cheng
通讯作者:
Xiaomin Wang;Li-Song Zhang;Chi-Chain Yang;Na Liu;W. Cheng
影响因子:
6.9
作者:
Tang Bin;Cheng Hua;Tang Yongzhi;Yao Zhishu;Rong Chuanxin;Wang Xiaojian;Xue Weipei;Guo Shiwei
通讯作者:
Guo Shiwei
影响因子:
6.4
作者:
Zhou, Xiaohan;Zeng, Yanhua;Fan, Lei
通讯作者:
Fan, Lei
影响因子:
7.4
作者:
F. Colella;G. Rein;R. Borchiellini;R. Carvel;J. Torero;V. Verda
通讯作者:
F. Colella;G. Rein;R. Borchiellini;R. Carvel;J. Torero;V. Verda
影响因子:
6.9
作者:
R. Robbins
通讯作者:
R. Robbins