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南京船厂船体车间地基采用震动水冲法加固的现场试验已结束。船体车间地区的土层组成为:地表为 3米厚松散吹填粉细砂;其下为深厚的淤泥质亚粘土,其顶部强度较大,是一自然干燥硬壳,随着深度增加,亚粘土中夹杂粉砂薄层,因而强度增大;再下面是中密粉砂层。地下水位在地表下一米左右处。 试验情况见照片。震冲器采用Ⅰ型,外径 300毫米,震动频率 960转/分,电机功率13千瓦,水压2～3公斤/厘米~2。用碎石制
Nanjing shipyard hull workshop ground with vibration water method to strengthen the field test has ended. The composition of the soil layer in the hull workshop area is as follows: the surface is a loosely packed silt with a thickness of 3 meters; underneath it is a deep silt loam with a strong top and a naturally dried hard shell. As the depth increases, Sand mixed with clay in the thin layer of sand, and thus increased strength; and then below the medium-density silt layer. Groundwater is about one meter below ground surface. See the picture of the test situation. Shock absorber using type I, diameter 300 mm, vibration frequency of 960 rev / min, the motor power of 13 kW, water pressure 2 to 3 kg / cm ~ 2. Made of gravel