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A platform for research: civil engineering, architecture and urbanism
Automatic excitation hammer for pile foundation detection by side hole transmission wave method
The invention discloses an automatic shock excitation hammer for pile foundation detection by a side hole transmission wave method, and relates to the technical field of pile foundation detection, the automatic shock excitation hammer comprises a ground layer, and a detection cylinder is arranged on the ground layer; the pile foundation is arranged in the stratum, and a building outer wall is arranged on the pile foundation; the shock excitation hammer is used for hammering the building outer wall to enable the pile foundation to generate vibration waves, the shock excitation hammer is perpendicular to the building outer wall, and a shock excitation unit is arranged on one side of the shock excitation hammer; the detection table is arranged on the stratum, an oscilloscope is installed on the detection table, after calculation of a correction formula, the pile depth corresponding to the inflection point ordinate on the time-pile depth broken line graph is the pile depth of the actually detected pile foundation, so that the depth detection of the pile foundation is completed, and meanwhile, the oscilloscope is installed on the oscilloscope. The properties of the pile body material of the pile foundation and the soil layer below the pile bottom can be roughly and respectively analyzed through the wave velocity obtained through the vertical straight line slope of the inflection point on the time-pile depth broken line graph.
本发明公开了用于旁孔透射波法桩基检测的自动激振锤，涉及桩基检测技术领域，包括地层，所述地层上设置有检测筒；设于地层内的桩基，所述桩基上设置有建筑外墙；用于锤击建筑外墙上使桩基产生振动波的激振锤，所述激振锤和建筑外墙垂直设置，且所述激振锤一侧设置有激振单元；设于地层上的检测台，所述检测台上安装有示波器，经过修正公式计算后，时间‑桩深折线图上的拐点纵坐标对应的桩深即为实际所检测的桩基的桩深，以完成对该桩基的深度检测，同时，通过时间‑桩深折线图上拐点上下直线斜率所得的波速，还可大致分别分析桩基的桩身材料和桩底下方土层的性质。
Automatic excitation hammer for pile foundation detection by side hole transmission wave method
The invention discloses an automatic shock excitation hammer for pile foundation detection by a side hole transmission wave method, and relates to the technical field of pile foundation detection, the automatic shock excitation hammer comprises a ground layer, and a detection cylinder is arranged on the ground layer; the pile foundation is arranged in the stratum, and a building outer wall is arranged on the pile foundation; the shock excitation hammer is used for hammering the building outer wall to enable the pile foundation to generate vibration waves, the shock excitation hammer is perpendicular to the building outer wall, and a shock excitation unit is arranged on one side of the shock excitation hammer; the detection table is arranged on the stratum, an oscilloscope is installed on the detection table, after calculation of a correction formula, the pile depth corresponding to the inflection point ordinate on the time-pile depth broken line graph is the pile depth of the actually detected pile foundation, so that the depth detection of the pile foundation is completed, and meanwhile, the oscilloscope is installed on the oscilloscope. The properties of the pile body material of the pile foundation and the soil layer below the pile bottom can be roughly and respectively analyzed through the wave velocity obtained through the vertical straight line slope of the inflection point on the time-pile depth broken line graph.
本发明公开了用于旁孔透射波法桩基检测的自动激振锤，涉及桩基检测技术领域，包括地层，所述地层上设置有检测筒；设于地层内的桩基，所述桩基上设置有建筑外墙；用于锤击建筑外墙上使桩基产生振动波的激振锤，所述激振锤和建筑外墙垂直设置，且所述激振锤一侧设置有激振单元；设于地层上的检测台，所述检测台上安装有示波器，经过修正公式计算后，时间‑桩深折线图上的拐点纵坐标对应的桩深即为实际所检测的桩基的桩深，以完成对该桩基的深度检测，同时，通过时间‑桩深折线图上拐点上下直线斜率所得的波速，还可大致分别分析桩基的桩身材料和桩底下方土层的性质。
Automatic excitation hammer for pile foundation detection by side hole transmission wave method
用于旁孔透射波法桩基检测的自动激振锤
ZHANG YAMING (author)
2023-12-29
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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