用静力触探测定渭河土堤干密度

Measuring Earth Embankment′s Dry Density of Wei River by Static Cone Penetration Test

渭河千里大堤属于人类在不同历史时期,采用多种方法修筑而成的防洪工程,若全线采用开挖坑槽探测定填土干密度的方法来评价河堤质量,不但工程量大,而且开挖点易留下防洪隐患。该文通过两种测试手段的对比及对测定数据的分析,肯定了用静力触探测定河堤填土密实度的方法是可行的,并归纳出静探比贯入阻力与干密度之间的回归方程式,该式在区内具有一定的适用性。

The embankment of a thousand li of Wei river is a flood control project built with various methods by human being in different historical period. If the quality of embankment is evaluated by the method of excavating pit to measure dry density along the whole line, the volume of project is not only great, but also the excavating spots may easily leave flood control hidden dangers. This paper affirms that the method of measuring earth fill＇s density by static penetration is feasible by comparing the two testing means and analyzing the data, and concludes the regression equations between penetration resistance of CPT and dry density, and the equations have certain applicability in the area.