摘要
综合考虑承压井引用的渗流假设、流体释放机制、流场特征及井径等因素 ,可以用承压井理论来解决软岩向深埋隧道的流动问题。Dp、μγ、p0 是预测软岩大变形的主要参数 ,其中最关键的参数是 Dp。三大参数确定后 ,可以利用相应公式进一步判断大变形的可能性。
Jointly considering seepage flow hypothesis, drainage mechanism of fluids, characteristics of flow field and radius of well, the confined well theory may be exploited in illustrating the soft rock's flowing toward tunnel. D p、μ r and p 0 are important in forecasting the large deformation of soft rock, and among them, the D p is determinative. After three parameters having been determined, further calculation may be carried out with the corresponding formulas.
出处
《铁道工程学报》
EI
2000年第2期73-76,共4页
Journal of Railway Engineering Society
基金
国家杰出青年科学基金资助项目! ( 4952 52 0 4 )
关键词
深埋隧道
软岩流动
井流公式
影响半径
deep tunnel
soft rock
flow
formula for well discharge
radius of influence
