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Foundation pit support system leakage point detection method and detection device
The invention discloses a method and a device for detecting leakage points of a foundation pit support system, relates to the field of underground engineering leakage detection, and is used for solving the problem of low determination precision of leakage points of an underground diaphragm wall. The detection method comprises the steps that a dewatering well is formed in a foundation pit support, and a plurality of observation wells are formed in the exterior of the foundation pit support in multiple directions of the periphery of the foundation pit support; continuously dewatering in the dewatering well; tracer agents are sequentially put into the observation wells, and the horizontal direction of the foundation pit support leakage point is judged; and determining water flow directions of different depths in the observation well corresponding to the leakage point in the horizontal direction, and judging the depth position of the leakage point so as to obtain the accurate position of the leakage point of the foundation pit support system. According to the method, the depth position of the leakage point is determined on the basis of preliminary determination of the horizontal position of the leakage point, the depth position of the leakage point is judged by obtaining the water flow directions of different depths in the observation well, and the accuracy of judgment of the position of the leakage point is guaranteed.
本发明公开了一种基坑围护体系渗漏点检测方法及检测装置，涉及地下工程渗漏检测领域，用于解决地下连续墙渗漏点确定精度低的问题。该检测方法包括：在基坑围护内开设降水井，在基坑围护外部沿着其外围多个方向开设若干观测井；对所述降水井内持续降水；逐次分别对所述若干观测井内投入示踪剂，判断基坑围护渗漏点的水平方向；确定渗漏点的水平方向上对应的观测井内在不同深度的水流流向，判断渗漏点深度位置，从而获得所述基坑围护体系渗漏点的准确位置。该方法在对渗漏点水平位置的初步确定的基础上对渗漏点的深度位置确定，通过获得观测井内在不同深度的水流流向，判断渗漏点深度位置，保证了渗漏点位置判定的准确性。
Foundation pit support system leakage point detection method and detection device
The invention discloses a method and a device for detecting leakage points of a foundation pit support system, relates to the field of underground engineering leakage detection, and is used for solving the problem of low determination precision of leakage points of an underground diaphragm wall. The detection method comprises the steps that a dewatering well is formed in a foundation pit support, and a plurality of observation wells are formed in the exterior of the foundation pit support in multiple directions of the periphery of the foundation pit support; continuously dewatering in the dewatering well; tracer agents are sequentially put into the observation wells, and the horizontal direction of the foundation pit support leakage point is judged; and determining water flow directions of different depths in the observation well corresponding to the leakage point in the horizontal direction, and judging the depth position of the leakage point so as to obtain the accurate position of the leakage point of the foundation pit support system. According to the method, the depth position of the leakage point is determined on the basis of preliminary determination of the horizontal position of the leakage point, the depth position of the leakage point is judged by obtaining the water flow directions of different depths in the observation well, and the accuracy of judgment of the position of the leakage point is guaranteed.
本发明公开了一种基坑围护体系渗漏点检测方法及检测装置，涉及地下工程渗漏检测领域，用于解决地下连续墙渗漏点确定精度低的问题。该检测方法包括：在基坑围护内开设降水井，在基坑围护外部沿着其外围多个方向开设若干观测井；对所述降水井内持续降水；逐次分别对所述若干观测井内投入示踪剂，判断基坑围护渗漏点的水平方向；确定渗漏点的水平方向上对应的观测井内在不同深度的水流流向，判断渗漏点深度位置，从而获得所述基坑围护体系渗漏点的准确位置。该方法在对渗漏点水平位置的初步确定的基础上对渗漏点的深度位置确定，通过获得观测井内在不同深度的水流流向，判断渗漏点深度位置，保证了渗漏点位置判定的准确性。
Foundation pit support system leakage point detection method and detection device
一种基坑围护体系渗漏点检测方法及检测装置
MIAO KEHAN (author) / HUANG YONG (author) / YANG WENJIE (author) / ZHANG JIE (author) / DONG XIAOSONG (author) / FU ZHIMIN (author)
2024-07-16
Patent
Electronic Resource
Chinese
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