孙豹,彭刚,王乾峰,等. 水压力环境中混凝土孔隙水压力变化规律研究[J]. 水利水运工程学报. doi: 10.12170/20190322001
引用本文: 孙豹,彭刚,王乾峰,等. 水压力环境中混凝土孔隙水压力变化规律研究[J]. 水利水运工程学报. doi: 10.12170/20190322001
(SUN Bao, PENG Gang, WANG Qianfeng, et al. Study on pore water pressure in concrete under water pressure environment[J]. Hydro-Science and Engineering(in Chinese)). doi: 10.12170/20190322001
Citation: (SUN Bao, PENG Gang, WANG Qianfeng, et al. Study on pore water pressure in concrete under water pressure environment[J]. Hydro-Science and Engineering(in Chinese)). doi: 10.12170/20190322001

水压力环境中混凝土孔隙水压力变化规律研究

Study on pore water pressure in concrete under water pressure environment

  • 摘要: 为研究水压力环境中混凝土的孔隙水压力变化规律,进行了不同水压力作用下混凝土的孔隙水压力变化试验,基于试验数据,采用有限元软件ANSYS对不同水压力作用下混凝土的孔隙水压力变化进行瞬态反演数值模拟,并与试验结果进行对比分析。结果表明:在水压力作用下,混凝土的孔隙水压力变化特征可分为快速增加、缓慢增加和稳定等3个阶段,当混凝土在0.875 MPa的水压力作用下,混凝土的孔隙水压力达到与所施加水压力相等的值需要9 h以上。采用有限元软件ANSYS数值模拟得到混凝土的孔隙水压力变化规律与试验数据吻合较好。

     

    Abstract: In order to study the change of pore water pressure of concrete in the water pressure environment, the experiment of pore water pressure change of the concrete under different water pressure was carried out. Based on the test data, the transient inversion numerical simulation of pore water pressure variation of concrete under different water pressure is carried out by using the finite element software ANSYS, and the results are compared with the experimental results. The research results show that under the action of water pressure, the change characteristics of pore water pressure of concrete can be divided into three stages: the rapid increase stage, the slow increase stage and the stabilization stage. When the concrete is under the water pressure of 0.875 MPa, the pore water pressure of the concrete reaches the value equal to the applied water pressure for more than 9 h. The variation law of pore water pressure of concrete is in good agreement with the experimental data by using the finite element software ANSYS for numerical simulation.

     

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