percolation coefficient meaning in English
渗透系数
Examples
- ( 2 ) in order to validate the rightness of the parameters , hydrogeology parameters is measured , such as discharge , percolation coefficient and hydraulic pressure using the precise instruments and existing formula and arithmetic
(二)利用各种精密测量仪器进行渗流量、渗透系数、水压力等水文地质参数的测定，结合已有的公式和算法，验证各种数据的取值合理性。 - Combining achievements in past scientific research , this thesis summarizes some problems in the process of decreasing water , the problems contains : important parameters such as percolation coefficient , interfering radius etc ; designers get parameters from their experience and make their choice of limited prospecting materials too simply , because of the limits , designer ca n ' t make quantitative analysis on groundwater ; differences on breakwater effect of setting water - tight screen is still existed , although research evolvement in this field is done ; they ca n ' t grasp the hydrogeology parameters accurately in that it influences rightness of designing in deep excavation water - decreasing
本文结合以往的研究成果，总结了降水过程中存在的一些问题，主要包括：重要设计参数，如地层渗透性、基坑降水影响半径等，设计中仅从个人经验出发取值，对有限的勘探资料进行取舍和过分地简化。这些局限使设计者不能对地下水进行科学的定量分析，盲目性较大；深基坑降低承压水引起的周边地面沉降的研究虽已取得很大的进展，但是一些主要问题仍未解决，对防渗帷幕的实际挡水效果存在不同看法；对于弱透水层的水文地质参数一直难以准确把握，影响了深基坑降水设计的正确性。