Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The invention relates to a lossless positioning method and device for an existing pile foundation, and the lossless positioning method comprises the steps: extracting initial pile foundation information in a to-be-measured region, and delimiting a first dynamic measurement path according to a projection region of the position of an initial pile foundation reinforcement cage in the initial pile foundation information on the earth surface; vertically transmitting a first electromagnetic wave to the underground along a first dynamic measurement path, and receiving a first electromagnetic echo reflected by the underground; and a first electromagnetic echo waveform diagram is formed, and current pile foundation reinforcement cage position information and pile foundation fracture deviation position information are obtained through analysis. According to the method, the electromagnetic waves with different frequencies are adopted to carry out lossless precise positioning on the pile foundation in the to-be-detected area in two stages, so that the fracture deviation position of the pile foundation and the distribution information of the reinforcing steel bars can be precisely positioned, and precise information is provided for subsequent further detection, so that the equipment loss of subsequent detection is reduced, and the damage to the pile foundation structure is reduced.
本发明涉及既有桩基无损定位方法及装置，其中无损定位方法包括：提取待测区域中的初始桩基信息，根据初始桩基信息中包含的初始桩基钢筋笼位置在地表的投影区域划定第一动测路径；沿第一动测路径垂直往地下发射第一电磁波，并接收由地下反射的第一电磁回波；形成第一电磁回波波形图并分析得到当前桩基钢筋笼位置信息及桩基断裂偏位位置信息。本发明通过采用由不同频率的电磁波分两阶段对待测区域桩基进行无损精准定位，从而能精准定位到桩基断裂偏位位置与钢筋分布信息，为后续进行进一步检测提供精准信息以降低后续检测的设备损耗及减少对桩基结构的破坏。
The invention relates to a lossless positioning method and device for an existing pile foundation, and the lossless positioning method comprises the steps: extracting initial pile foundation information in a to-be-measured region, and delimiting a first dynamic measurement path according to a projection region of the position of an initial pile foundation reinforcement cage in the initial pile foundation information on the earth surface; vertically transmitting a first electromagnetic wave to the underground along a first dynamic measurement path, and receiving a first electromagnetic echo reflected by the underground; and a first electromagnetic echo waveform diagram is formed, and current pile foundation reinforcement cage position information and pile foundation fracture deviation position information are obtained through analysis. According to the method, the electromagnetic waves with different frequencies are adopted to carry out lossless precise positioning on the pile foundation in the to-be-detected area in two stages, so that the fracture deviation position of the pile foundation and the distribution information of the reinforcing steel bars can be precisely positioned, and precise information is provided for subsequent further detection, so that the equipment loss of subsequent detection is reduced, and the damage to the pile foundation structure is reduced.
本发明涉及既有桩基无损定位方法及装置，其中无损定位方法包括：提取待测区域中的初始桩基信息，根据初始桩基信息中包含的初始桩基钢筋笼位置在地表的投影区域划定第一动测路径；沿第一动测路径垂直往地下发射第一电磁波，并接收由地下反射的第一电磁回波；形成第一电磁回波波形图并分析得到当前桩基钢筋笼位置信息及桩基断裂偏位位置信息。本发明通过采用由不同频率的电磁波分两阶段对待测区域桩基进行无损精准定位，从而能精准定位到桩基断裂偏位位置与钢筋分布信息，为后续进行进一步检测提供精准信息以降低后续检测的设备损耗及减少对桩基结构的破坏。
Lossless positioning method and device for existing pile foundation
既有桩基无损定位方法及装置
17.01.2023
Patent
Elektronische Ressource
Chinesisch
Pile foundation pile repairing construction technology under existing pile foundation condition
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