收敛监测记录日报表(2015-05-11)

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1、引黄25标16#支洞断面收敛量测日报上报日期：2015-05-11报表人：张秀杰一、工作概况测量组在16#支洞施工断面桩为K0+525.0的断面埋设监控测量的三个点，其中拱顶一个点A，侧墙两个点B、C。用JSS30A-01161收敛仪测量此断面的沉降数据值并计算。二、收敛量测测点布置图三、测量具体成果监测日期各测线实测相对位移值（mm）年月日时A-BA-CB-C测值相对于上次位移(mm)相对于初次位移(mm)变化速率（mm/d）测值相对于上次位移(mm)相对于初次位移(mm)变化速率（mm/d）测值相对于上次位移(mm)相对

2、于初次位移(mm)变化速率（mm/d）2015416102853.440.000.000.002863.120.000.000.003861.370.000.000.002015416172853.120.320.321.102863.030.090.090.313861.180.190.190.662015417122852.780.340.660.432862.920.110.200.143861.020.160.350.202015417162852.710.070.730.412862.770.150.350.083

3、860.870.150.500.88201541892852.560.150.880.212862.620.150.350.883860.740.130.630.182015419132852.410.151.030.132862.550.070.570.063860.620.120.750.102015421112852.230.181.210.092862.450.100.670.053860.550.070.820.042015424162852.170.061.270.022862.330.120.790.04386

4、0.450.100.920.052015428142852.130.041.310.012862.270.060.850.023860.390.060.980.02201552122852.120.011.320.002862.230.040.890.003860.350.041.020.01201556102832.120.001.320.002826.630.000.890.003860.340.011.030.002015511132832.120.001.320.002826.630.000.890.003860.3

5、40.001.030.00本日K0+525.0断面收敛量测数据处理结果如下表:一、监测结果分析监测断面桩号K0+525.鉴定为Ⅳ类围岩开挖，根据收敛沉降数据显示此施工断面喷锚支效果良好，沉降位移为1.32mm、0.89mm、1.03mm相对较小，A-C、A-B、B-C的收敛速率均满足《水利水电工程锚喷支护技术规范(SL377-2007)》的要求。因此判断16#支洞K0+525断面围岩处于稳定状态，可正常施工。