CAJ | 학술논문

现有的基坑水平位移监测主要采用全站仪或经纬仪利用极坐标法或小角度法进行，但工作基准点常会受到基坑开挖的影响，进而影响基坑检测的精度和时效性。快速静态GPS基坑水平位移监测技术，只需建立2个基准点作为基准站，工作基点和部分不能通视的监测点利用GPS进行测量，实施动态监测。青岛某基坑工程水平位移的监测，采用双基准菱状GPS网型，基站点和监测点采用强制对中螺栓和特质仪器支架来快速安置，基站长时段观测与监测点快速静态观测数据采集相结合。结果表明，该方法具有高精度、高效益、全天候、不需通视等优点，可提高工作效率并获得稳定和可靠监测数据。
현유적기갱수평위이감측주요채용전참의혹경위의이용겁좌표법혹소각도법진행，단공작기준점상회수도기갱개알적영향，진이영향기갱검측적정도화시효성。쾌속정태GPS기갱수평위이감측기술，지수건립2개기준점작위기준참，공작기점화부분불능통시적감측점이용GPS진행측량，실시동태감측。청도모기갱공정수평위이적감측，채용쌍기준릉상GPS망형，기참점화감측점채용강제대중라전화특질의기지가래쾌속안치，기참장시단관측여감측점쾌속정태관측수거채집상결합。결과표명，해방법구유고정도、고효익、전천후、불수통시등우점，가제고공작효솔병획득은정화가고감측수거。
The total station or theodolite is mainly adopted in foundation excavation horizontal displacement monitoring with polar coordinate method or small angle method. However,the basis points are often affected by excavation work, which influence the detection accuracy and timeliness of the security monitoring of foundation excavation. All that needed are only two base stations in rapid static GPS method adopted in foundation excavation horizontal displacement security monitoring. The work basis points and some monitoring points without inter-visibility can be dynamically monitored by GPS. The new technology used in horizontal displacement monitoring of some foundation excavation possess such characters,bi-standard rhombic GPS net work, forced centering spiral in basis station and monitoring points,special holder for rapid installation and combination long period of time observation at basis station with rapid static observation data collection. Results show that this method can improve work efficiency and gain stable and reliable data for the advantages of high precision,high benefit,all-weather and without inter-visibility.