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Device for detecting thickness of sediment at bottom of cast-in-place concrete pile
The invention discloses a device for detecting the thickness of sediment at the bottom of a cast-in-place concrete pile, which belongs to the technical field of cast-in-place concrete pile construction and comprises a measuring rope, a measuring hammer, a floating plate arranged below the measuring hammer and a connecting frame used for connecting the floating plate and the measuring hammer. The middle part of the floating plate is provided with a hole through which the measuring hammer passes, and the upper surface of the floating plate is covered with a water-soluble film corresponding to the hole. And an interval is formed between the bottom of the measuring hammer and the upper surface of the water-soluble film and is not less than zero. According to the device, an operator lowers the measuring hammer into a pile hole, when the measuring hammer is supported on the water-soluble film, the pulling force on the measuring rope is instantly reduced, the measuring rope is pulled upwards until the measuring rope is straightened, and at the moment, the point position where the measuring hammer makes contact with the water-soluble film is recorded. Then water is supplied along the measuring rope, the water-soluble film is dissolved, the measuring rope continues to be lowered, the point positions, making contact with the bottom of the sediment, of the measuring hammer are measured and recorded, the difference value of the two point positions is recorded as a, a is the sum of the thickness of the sediment and the thickness of the floating plate, and the thickness of the sediment is obtained by subtracting the thickness of the floating plate from a.
本申请公开了一种混凝土灌注桩桩底沉渣厚度检测装置，属于混凝土钻孔灌注桩施工的技术领域，其包括测绳、测锤、设置于测锤下方的浮板和用于连接浮板和测锤的连接架；浮板中部开设有供测锤穿过的孔洞，浮板上表面对应孔洞的区域覆盖有水溶膜。所述测锤底部和水溶膜上表面之间形成间隔，间隔不小于零。通过本申请,操作人员将测锤下放到桩孔中，当测锤支承于水溶膜上时，测绳上的拉力瞬间减小，上拉测绳直至绷直，此时为测锤和水溶膜接触的点位，进行记录。然后沿着测绳进行给水，使得水溶膜溶解，继续下放测绳并测量测锤接触沉渣底部的点位，进行记录，两个点位的差值记为a，a为沉渣厚度和浮板厚度之和，沉渣厚度即为a减去浮板厚度。
Device for detecting thickness of sediment at bottom of cast-in-place concrete pile
The invention discloses a device for detecting the thickness of sediment at the bottom of a cast-in-place concrete pile, which belongs to the technical field of cast-in-place concrete pile construction and comprises a measuring rope, a measuring hammer, a floating plate arranged below the measuring hammer and a connecting frame used for connecting the floating plate and the measuring hammer. The middle part of the floating plate is provided with a hole through which the measuring hammer passes, and the upper surface of the floating plate is covered with a water-soluble film corresponding to the hole. And an interval is formed between the bottom of the measuring hammer and the upper surface of the water-soluble film and is not less than zero. According to the device, an operator lowers the measuring hammer into a pile hole, when the measuring hammer is supported on the water-soluble film, the pulling force on the measuring rope is instantly reduced, the measuring rope is pulled upwards until the measuring rope is straightened, and at the moment, the point position where the measuring hammer makes contact with the water-soluble film is recorded. Then water is supplied along the measuring rope, the water-soluble film is dissolved, the measuring rope continues to be lowered, the point positions, making contact with the bottom of the sediment, of the measuring hammer are measured and recorded, the difference value of the two point positions is recorded as a, a is the sum of the thickness of the sediment and the thickness of the floating plate, and the thickness of the sediment is obtained by subtracting the thickness of the floating plate from a.
本申请公开了一种混凝土灌注桩桩底沉渣厚度检测装置，属于混凝土钻孔灌注桩施工的技术领域，其包括测绳、测锤、设置于测锤下方的浮板和用于连接浮板和测锤的连接架；浮板中部开设有供测锤穿过的孔洞，浮板上表面对应孔洞的区域覆盖有水溶膜。所述测锤底部和水溶膜上表面之间形成间隔，间隔不小于零。通过本申请,操作人员将测锤下放到桩孔中，当测锤支承于水溶膜上时，测绳上的拉力瞬间减小，上拉测绳直至绷直，此时为测锤和水溶膜接触的点位，进行记录。然后沿着测绳进行给水，使得水溶膜溶解，继续下放测绳并测量测锤接触沉渣底部的点位，进行记录，两个点位的差值记为a，a为沉渣厚度和浮板厚度之和，沉渣厚度即为a减去浮板厚度。
Device for detecting thickness of sediment at bottom of cast-in-place concrete pile
一种混凝土灌注桩桩底沉渣厚度检测装置
FEI CHUNFANG (author) / WANG RUI (author) / SHEN GUOQIANG (author) / HANG XIAOCHEN (author) / GU TINGTING (author) / SHEN CHENFEI (author)
2023-04-07
Patent
Electronic Resource
Chinese
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