GNSS柔性观测墩的试验研究
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摘要
基于无震时用于GNSS连续站测量、有震时能降低可记录地动位移阈值的需求,设计建造了3个不同深度的双筒下沉式GNSS柔性观测墩,在东三旗GNSS连续站进行了数月的同环境、同时段连续观测。在解算环境相同的条件下,结果表明,无震时双筒下沉式观测墩可用于连续站测量。脉冲敲击试验结果还显示,试验用的倒立摆式观测墩在水平分量上具备放大作用,它为降低可记录地动位移阈值提供了可能。由于试验时测区内没有发生3.0级以上地震,更详细的研究有待下一步工作。
On the basis of the requirement of the observation piers to have the ability to work for the GNSS continuous observation in the non-earthquake period and to reduce the recordable ground displacement threshold in the earthquake period,we designed and built 3 flexible GNSS observation piers with the dual drum sinking-mode at Dongsanqi station.With these three flexible observation piers,we carried out the continuous observation several months in the same environment and the same time period.Through examining the results which solved in the same conditions,we have found that the flexible GNSS observation piers with the dual drum sinking-mode are able to be used in the continuous observations.At the same time,the shock and pulse experiments results shown that the inverted pendulum type observation piers for testing have the amplification ability.The amplification ability of this type of piers proved the possibility to reduce the recordable ground displacement threshold.Considering that there were no earthquakes more than M3.0 in the testing area in the testing period,some more detailed study will be took out in the future.
On the basis of the requirement of the observation piers to have the ability to work for the GNSS continuous observation in the non-earthquake period and to reduce the recordable ground displacement threshold in the earthquake period,we designed and built 3 flexible GNSS observation piers with the dual drum sinking-mode at Dongsanqi station.With these three flexible observation piers,we carried out the continuous observation several months in the same environment and the same time period.Through examining the results which solved in the same conditions,we have found that the flexible GNSS observation piers with the dual drum sinking-mode are able to be used in the continuous observations.At the same time,the shock and pulse experiments results shown that the inverted pendulum type observation piers for testing have the amplification ability.The amplification ability of this type of piers proved the possibility to reduce the recordable ground displacement threshold.Considering that there were no earthquakes more than M3.0 in the testing area in the testing period,some more detailed study will be took out in the future.
引文
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2中国地震局.地震与前兆数字观测技术规范[S].北京:地震出版社,2001.(China Earthquake Administration.The standard of digital observation technology for earthquake and precursors[S].Beijing:Seismological Press,2001)
3孟国杰,等.GPS高频数据处理方法及其在地震学中的应用研究进展[J].国际地震动态,2007,(7):26-31.(Meng Guojie,et al.Data processing methods of high rate GPS and its application to seismology[J].Recent Developments in World Seismology,2007,(7):26-31)
2中国地震局.地震与前兆数字观测技术规范[S].北京:地震出版社,2001.(China Earthquake Administration.The standard of digital observation technology for earthquake and precursors[S].Beijing:Seismological Press,2001)
3孟国杰,等.GPS高频数据处理方法及其在地震学中的应用研究进展[J].国际地震动态,2007,(7):26-31.(Meng Guojie,et al.Data processing methods of high rate GPS and its application to seismology[J].Recent Developments in World Seismology,2007,(7):26-31)
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