700~1000 轻型井点平面及高程布 TTTTTTTTTTTTTTTTTTTTMTTMUMN 单接井点布置简图 (a)平面布置;(b)高程布置 -总管;2一并点管;3一抽水设备 700~1000 TTTTTTTTMTTI 基坑 ⊥u 9s999999999s轻型井点平面及高程布置