Weathered rock is the predecessor of saprolite and is mainly made of corestones surrounded by saprolite crust.

土层可层滞水，风化岩带则可赋潜水或承压水。

Minish the well space and increase transflux routeways upper backwater and driving, especially setup precipitation well and drain residual water at the bottom of diving layer.

减井间距，增加层滞水和潜水的入流通道，尤潜水含水层底板低洼处设置降水井将低洼处的残留水引走。