| Show quickman H ds in exco van ant ins 1 2 pe the opera eions of engineers in n the enst acton of L 4 te P pits ks foundations basow the water level an andoch doh ed M excavations 0 us where layer lanyer of sand are e lia liable e tebe encountered are 4 often aed uy ly th the floar ft w at f wafer which itt it la i s impossible to 0 get pd of this difficulty ity can jiow ilow be a located by adopting a systems system wh izig recently jbea be b e a patented in b 1 1 ing far instance a sewer wt t is bea b a all oia overlying dying a s str 0 of i quicksand and beneath w Is gravo grate the water may neu sufficient enSI cleat lp to ca cause laie q sand to boil upward into tae 1 tr To Top prevent this a series estiven ed veils Is is located in the ilie line of tte trench tren ir upper ends connected with witha a jumpre pump ta belying the iq ater th ugh gfa a asand sand box tho the well pipes are pla placed ced usually about 8 3 feet apart but theR beaw between en them laust depend on tiie flie flow of witter and U becia ure al 61 im 49 IT T their air lower ends in qu are am tn pro blaed with jid jacket A strainers by this ui method thod after pumping fl few W hous hours jabore boreo oj alesc according t to 0 the ji flow OW st it is usually R r foun dab th the e boll boiling jig sp springs rin of quicksand casan d a are no longer and the sand and remaining io fd Is ig so that ac it can C readily be shoveled outs out |
