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A platform for research: civil engineering, architecture and urbanism
Method for measuring layered settlement of soil body under dynamic compaction effect
The invention provides a method for measuring layered settlement of a soil body under a dynamic compaction effect. The method comprises the following steps of manufacturing circular iron sheets as markers, and welding a hook on the upper surface of each circular iron sheet; determining embedding positions, drilling a hole at each embedding position, putting a certain amount of dry sand into the drilled holes, compacting, tying the hooks on the circular iron sheet with a rope, putting the circular iron sheet into the drilled hole, and backfilling the drilled hole; and on the ground surface above the embedding positions of the markers, acquiring field data by adopting a ground penetrating radar to obtain an observation image, reading an initial embedding depth value of the circular iron sheet of each marker and a post-settlement depth value after dynamic compaction construction according to the observation image of the ground penetrating radar, and comparing the initial embedding depth value with the post-settlement depth value to obtain a dynamic compaction layered settlement value of a soil layer where each marker is positioned. The method has the beneficial effects that the settlement of soil layers with different depths after dynamic compaction construction is detected by utilizing high precision of the ground penetrating radar, the dynamic compaction construction site operation is facilitated, the observation data is reliable, and the dynamic compaction reinforced soil body is not damaged in the measuring process.
本发明提出了一种强夯作用下土体分层沉降量的测量方法，步骤如下：制作圆形铁片作为标记物，上表面焊接有挂钩；确定好埋设位置，并在每个埋设位置处钻孔，在钻孔中放入一定量干砂并击实，用绳子系住圆形铁片上的挂钩，将其放入钻孔内，回填钻孔；在标记物埋设位置的上方地表，采用探地雷达采集现场数据得到观测图像，根据探地雷达的观测图像，读取每个标记物圆形铁片的初始埋设深度值以及强夯施工后的沉降后深度值，二者相比较即可得到标记物所在土层的强夯分层沉降值。本发明的有益效果如下：利用探地雷达的高精确性探测强夯施工后不同深度土层的沉降量，便于强夯施工现场操作、观测数据较为可靠、且测量过程对强夯加固土体无损害。
Method for measuring layered settlement of soil body under dynamic compaction effect
The invention provides a method for measuring layered settlement of a soil body under a dynamic compaction effect. The method comprises the following steps of manufacturing circular iron sheets as markers, and welding a hook on the upper surface of each circular iron sheet; determining embedding positions, drilling a hole at each embedding position, putting a certain amount of dry sand into the drilled holes, compacting, tying the hooks on the circular iron sheet with a rope, putting the circular iron sheet into the drilled hole, and backfilling the drilled hole; and on the ground surface above the embedding positions of the markers, acquiring field data by adopting a ground penetrating radar to obtain an observation image, reading an initial embedding depth value of the circular iron sheet of each marker and a post-settlement depth value after dynamic compaction construction according to the observation image of the ground penetrating radar, and comparing the initial embedding depth value with the post-settlement depth value to obtain a dynamic compaction layered settlement value of a soil layer where each marker is positioned. The method has the beneficial effects that the settlement of soil layers with different depths after dynamic compaction construction is detected by utilizing high precision of the ground penetrating radar, the dynamic compaction construction site operation is facilitated, the observation data is reliable, and the dynamic compaction reinforced soil body is not damaged in the measuring process.
本发明提出了一种强夯作用下土体分层沉降量的测量方法，步骤如下：制作圆形铁片作为标记物，上表面焊接有挂钩；确定好埋设位置，并在每个埋设位置处钻孔，在钻孔中放入一定量干砂并击实，用绳子系住圆形铁片上的挂钩，将其放入钻孔内，回填钻孔；在标记物埋设位置的上方地表，采用探地雷达采集现场数据得到观测图像，根据探地雷达的观测图像，读取每个标记物圆形铁片的初始埋设深度值以及强夯施工后的沉降后深度值，二者相比较即可得到标记物所在土层的强夯分层沉降值。本发明的有益效果如下：利用探地雷达的高精确性探测强夯施工后不同深度土层的沉降量，便于强夯施工现场操作、观测数据较为可靠、且测量过程对强夯加固土体无损害。
Method for measuring layered settlement of soil body under dynamic compaction effect
一种强夯作用下土体分层沉降量的测量方法
ZHAO KUNYANG (author) / HOU SEN (author) / REN GENG (author) / ZHENG PANFEI (author) / CHEN MENGLONG (author)
2020-04-14
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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