The text introduces several problems of should be noticed during designing gravity type sinking-well in order to ensure the well foundationsunk to the design elevation smoothly.
Sunk shafting as a kind of old constructing technology is applying widely in deep foundation constructing.
沉井 这一古老的施工工艺，在当今的深基础施工中被广泛应用。
3
Combined with the pile foundation construction of Wuzhou city Hedong flood dike, the author introduced his opinion on quality control of sunk pipe filling pile construction.