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1、南通港天生横港作业区新世界通用码头3#、4#泊位后方陆域地基处理加固工程试验区 试验一区（真空降水+强夯）检测报告施工单位：中国核工业芜湖基础工程公司检测单位： 建设单位：南通滨五实业有限公司 编制日期：2014年6月28日 试验一区（真空降水+强夯）1、工艺流程及施工参数1、真空降水试验区边界外2.00m 设置浅层封管、深层封管各一排，真空管间距为4.00m，浅管长4.00m、深管长8.00m。试验区边界内，设置间距4.00m 的4.00m 长浅层管，浅层管排距6.00m；设置间距4.00m 的8米长深层管，深层管排距3.00m。第一遍强夯夯击前，拔除偶数排的浅层管，余下的真空管形成排距为6
2、.00m。 该区域于5月3日开始降水，经过6天降水，水位基本稳定于地面以下3米左右（详见附表：水位观测表）2、 强夯夯锤质量15.6 吨，直径2.5m，每遍能量2000kNm，夯点间距4.0m6.00m第一遍一次点夯，水位稳定后，拔除偶数排浅层管开始第一遍点夯，能量2000kNm，夯点间距4.0m6.00m，每点4击。第一遍二次点夯，能量2000kNm、夯点间距4.0m6.00m，每点4击。第二遍点夯，拔除奇数排进行第二遍点夯，能量2000kNm、夯点间距4.0m6.00m，每点8击。第三遍满夯对整个试验区普夯一遍，普夯能量为1000KN.m，满夯时锤印相互搭接三分之一到五分之一锤径，满夯每点
3、一击强夯作业的同时，持续进行了夯坑周边隆起、孔隙水压力监测、夯坑沉降观测、水位观测记录以及夯前夯后静力触探。根据观测分析：夯坑周边无明显隆起现象；每击夯沉量均匀递减，无明显增大现象；水位保持稳定；孔隙水压力消散情况较好。 二、监测数据及检测结果2.1、沉降测试分项工程名称: 地基处理前 日期:2014.4.29桩号及部位: 试验一区 仪器: 水准仪 桩 号后 视前 视实测设计备注读数高程高程高程Y0047.4244转点0012.354.2912.354.292.214.43试验一区22.354.292.244.432.354.292.274.3742.354.292.314.3352.354.
4、292.444.262.354.292.434.2172.354.292.164.4882.354.292.184.4692.354.292.334.31102.354.292.454.19112.354.292.214.43122.354.292.214.43132.354.292.334.31142.354.292.24.44152.354.292.154.49162.354.292.274.37172.354.292.314.33182.354.292.424.22192.354.292.244.4202.354.292.144.5212.354.292.184.46222.354.29
5、2.34.34232.354.292.434.21242.354.292.34.34252.354.292.164.48262.354.292.234.41272.354.292.264.38282.354.292.294.35292.354.292.424.22平均高程4.36分项工程名称: 地基处理第一遍一次夯后 日期:2014.5.16桩号及部位: 试验区 仪器: 水准仪 桩 号后 视前 视实测设计备注读数高程高程高程Y0047.4244转点0011.74.294.2911.74.291.724.27试验一区21.74.291.684.3131.74.291.634.3641.74.29
6、1.594.451.74.291.684.3161.74.291.694.371.74.291.674.3281.74.291.74.2991.74.291.674.32101.74.291.714.28111.74.291.694.3121.74.291.714.28131.74.291.774.22141.74.291.724.27151.74.291.784.21161.74.291.994171.74.291.884.11181.74.291.894.1191.74.291.884.11201.74.291.944.05211.74.292.013.98221.74.291.954.0
7、4231.74.291.94.09241.74.292.043.95251.74.292.053.94261.74.291.984.01271.74.292.113.88281.74.292.093.9291.74.292.123.87平均高程4.15分项工程名称: 地基处理第一遍二次后高程 日期:2014.5.20桩号及部位: 试验区 仪器: 水准仪 桩 号后 视前 视实测设计备注读数高程高程高程Y0047.4244转点0011.754.2911.754.292.13.94试验一区21.754.291.994.0531.754.291.984.0641.754.291.964.0851.75
8、4.291.974.0761.754.291.984.0671.754.2924.0481.754.292.083.9691.754.292.024.02101.754.292.044111.754.291.984.06121.754.292.123.92131.754.292.014.03141.754.292.153.89151.754.292.093.95161.754.292.13.94171.754.292.13.94181.754.292.13.94191.754.292.13.94201.754.292.23.84211.754.292.153.89221.754.292.23.
9、84231.754.292.33.74241.754.292.33.74251.754.292.183.86261.754.292.13.94271.754.292.173.87281.754.292.153.89291.754.292.193.85平均高程3.94 分项工程名称: 二遍及满夯后高程 日期:2014.5.30桩号及部位: 试验区 仪器: 水准仪 桩 号后 视前 视实测设计备注读数高程高程高程Y0047.4244转点0011.214.2911.214.291.783.72试验一区21.214.291.743.7631.214.291.883.6241.214.291.843.6651.214.291.963.5461.214.291.843.6671.214.291.93.681.214.291.93.691.214.291.953.55101.214.291.883.62111.214.291.823.68121.214.291.853.65131.214.291.783.72141.214.291.83.7151.214.291.83.7161.214.291.853.65171.214.291.843.66181.214.291.873.631
