◆Precipitation preloading is one artificial method of lowering ground water, bury amounts of filter pipe in precipitation and reinforce area, make use of pumping equipment to unwater in soil mass, urge soil mass drainage consolidation, enhance foundation soil strength and lower underground water level.
◆Precipitation preloading apply to sandy soil or foundation soil which the underground water level is high.
2.punching to wellhole
3.bury well point pipe
5.install horizontal pipe
6.install pumping equipment