Recent experience has shown that it is possible to densify h

Recent experience has shown that it is possible to densify higher fines content liquefiable materia
Recent experience has shown that it is possible to densify higher fines content
liquefiable materials by installation of closely spaced vertical drains prior to vibratory
or impact treatment.Successful improvement of an up to 18 m (60 ft) thick deposit of
interbedded,generally cohesionless,fluvial-lacustrine sandy and silty foundation
material beneath Salmon Lake Dam in Washington State,Luehring,et al (2001),is a
good example.Both extensive SPT and CPT testing indicated that this material was
susceptible to liquefaction under the design earthquake.Fines contents ranged up to
more than 60 percent.Prefabricated vertical drains (wick drains) were installed on 3
or 6 ft spacing to the full 58 to 61 ft target depths of stone columns throughout the
treatment area.Dry,bottom feed stone columns were spaced 6.0 ft on centers,and the
drains were located at the mid-points of the sides of the triangles formed by the stone
column pattern. 只会哼哼的猪 1年前他留下的回答 已收到2个回答

偶是小qq 网友

该名网友总共回答了20个问题，此问答他的回答如下：采纳率：90%

结果已经发给你了~注意查收~

1年前他留下的回答

3

gaver 网友

该名网友总共回答了5个问题，此问答他的回答如下：

最近的研究表明，增加 高微粒含量的可溶解斜纹织物 的密度是可行的。

1年前他留下的回答

1

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