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Horizontal displacement monitoring method for pier column in bridge pile foundation underpinning
The invention discloses a horizontal displacement monitoring method for a pier column in bridge pile foundation underpinning. The method comprises the following steps of: (1) arranging monitoring points, namely correspondingly arranging the monitoring points at the top and the bottom of the pier column in groups up and down; (2) burying monitoring points: burying a monitoring mark at a horizontaldisplacement monitoring point; (3) observation and data acquisition: monitoring the horizontal displacement of the pier column by using a total station and adopting a polar coordinate method; and (4)data processing and analysis: 1) carrying out data transmission and adjustment calculation to obtain coordinates of each monitoring point; and 2) analyzing the stability of the monitoring points according to the adjustment calculation result, and judging whether the horizontal displacement of the pier column is changed or not by combining a comparison result of the maximum deformation and a maximum measurement error of the monitoring points in two adjacent stages. According to the horizontal displacement monitoring method, deformation and displacement of the pier column can be continuously monitored and fed back, whether horizontal displacement happens to the pier column or not is judged according to the monitoring method, and the stability and safety of the pile foundation underpinning construction process are improved.
本发明公开一种桥梁桩基托换中墩柱的水平位移监测方法，包括以下步骤：(1)监测点布置，在墩柱的顶部和底部上下对应按组布设监测点；(2)监测点埋设，在水平位移监测点埋设监测标志；(3)观测及数据采集，使用全站仪并采用极坐标法对墩柱水平位移进行监测；(4)数据处理及分析，1)数据传输及平差计算，得出各监测点坐标；2)根据平差计算结果对监测点的稳定性分析，再结合相邻两期中监测点的最大变形量与最大测量误差比较结果，进而判断墩柱的水平位移是否有变动。该水平位移监测方法能够对墩柱的变形量和位移进行持续的监测和反馈，根据该监测方法对墩柱是否发生水平位移进行判断，提高了桩基托换施工过程的稳定性和安全性。
Horizontal displacement monitoring method for pier column in bridge pile foundation underpinning
The invention discloses a horizontal displacement monitoring method for a pier column in bridge pile foundation underpinning. The method comprises the following steps of: (1) arranging monitoring points, namely correspondingly arranging the monitoring points at the top and the bottom of the pier column in groups up and down; (2) burying monitoring points: burying a monitoring mark at a horizontaldisplacement monitoring point; (3) observation and data acquisition: monitoring the horizontal displacement of the pier column by using a total station and adopting a polar coordinate method; and (4)data processing and analysis: 1) carrying out data transmission and adjustment calculation to obtain coordinates of each monitoring point; and 2) analyzing the stability of the monitoring points according to the adjustment calculation result, and judging whether the horizontal displacement of the pier column is changed or not by combining a comparison result of the maximum deformation and a maximum measurement error of the monitoring points in two adjacent stages. According to the horizontal displacement monitoring method, deformation and displacement of the pier column can be continuously monitored and fed back, whether horizontal displacement happens to the pier column or not is judged according to the monitoring method, and the stability and safety of the pile foundation underpinning construction process are improved.
本发明公开一种桥梁桩基托换中墩柱的水平位移监测方法，包括以下步骤：(1)监测点布置，在墩柱的顶部和底部上下对应按组布设监测点；(2)监测点埋设，在水平位移监测点埋设监测标志；(3)观测及数据采集，使用全站仪并采用极坐标法对墩柱水平位移进行监测；(4)数据处理及分析，1)数据传输及平差计算，得出各监测点坐标；2)根据平差计算结果对监测点的稳定性分析，再结合相邻两期中监测点的最大变形量与最大测量误差比较结果，进而判断墩柱的水平位移是否有变动。该水平位移监测方法能够对墩柱的变形量和位移进行持续的监测和反馈，根据该监测方法对墩柱是否发生水平位移进行判断，提高了桩基托换施工过程的稳定性和安全性。
Horizontal displacement monitoring method for pier column in bridge pile foundation underpinning
一种桥梁桩基托换中墩柱的水平位移监测方法
SUN GUANG (author) / ZHANG PENGFEI (author) / HAO YONGPAN (author) / LIU HONGTAO (author) / CAO CHONG (author) / HE YINGCHAO (author) / HAN LIZHOU (author) / YUAN SHUFANG (author) / LI YANBIN (author) / RONG LIANG (author)
2020-10-30
Patent
Electronic Resource
Chinese
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