应力敏感性承压含水层渗流规律研究

基于应力敏感性渗流特征,针对承压含水层完全井,建立了带有渗透率应力敏感性系数的渗流数学模型。计算结果表明随着应力敏感性系数系数的增大,水位降深-流量关系曲线逐渐偏离线性关系,应力敏感性系数越大,在相同的水位降深条件下,出水量越小;同时,随着应力敏感性系数的增大,水头损失幅度也增大,任一流量下,应力敏感性系数越大,靠近井底附近位置处的水头损失幅度也越大。     

Public school teachers’ perceptions of what promotes or hinders their use of outdoor learning spaces

Learning Environments Research - The creation of outdoor learning spaces (OLS) such as school gardens is increasing in frequency in elementary and secondary schools in Canada. Previous research has...