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A platform for research: civil engineering, architecture and urbanism
Foundation pit dewatering method suitable for high-water-level area and slope supporting device
The invention relates to the technical field of building construction, in particular to a foundation pit dewatering method suitable for a high-water-level area and a slope supporting device, and the foundation pit dewatering method comprises the following steps: determining the most dangerous sliding surface of a uniform soil slope by adopting a 4.5 H method (empirical method) of Ferreonius, calculating the volume moisture content of a soil body of the sliding surface, and calculating the volume moisture content of the soil body of the sliding surface; obtaining a stability coefficient Km calculation expression of any one soil strip on the sliding surface according to a Sweden strip division method, substituting foundation pit design parameters into a formula (3) for calculation, comparing whether a calculation result meets requirements or not, if not, lowering the underground water level line, and calculating again until the calculation result meets the requirements; the difference value between the underground water level depth and the original underground water level depth is the rainfall depth. The invention provides a novel foundation pit dewatering calculation method, and adopts two modes of drilling while protecting and excavating while protecting, so that the construction speed is increased, the construction speed is accelerated, and the stability of a foundation pit slope is ensured.
本发明涉及建筑施工技术领域，更具体而言，涉及一种适用于高水位地区的基坑降水方法及边坡支护装置，包括采用费伦纽斯的4.5H法（经验法）确定均匀土坡最危险的滑动面，计算滑动面土体体积含水率，根据瑞典条分法得到滑动面上任意一个土条的稳定性系数Km计算表达式，将基坑设计参数代入式（3）进行计算，对比计算结果是否满足要求，如不满足则降低地下水水位线，并再次计算，直到满足，地下水水位深度与原始地下水水位深度之间的差值为降水深度。本发明提出了一种新的基坑降水计算方法，并采取了边钻井边防护和边开挖边防护两种方式，提高了施工速度，加快了施工速度，保证了基坑边坡的稳定性。
Foundation pit dewatering method suitable for high-water-level area and slope supporting device
The invention relates to the technical field of building construction, in particular to a foundation pit dewatering method suitable for a high-water-level area and a slope supporting device, and the foundation pit dewatering method comprises the following steps: determining the most dangerous sliding surface of a uniform soil slope by adopting a 4.5 H method (empirical method) of Ferreonius, calculating the volume moisture content of a soil body of the sliding surface, and calculating the volume moisture content of the soil body of the sliding surface; obtaining a stability coefficient Km calculation expression of any one soil strip on the sliding surface according to a Sweden strip division method, substituting foundation pit design parameters into a formula (3) for calculation, comparing whether a calculation result meets requirements or not, if not, lowering the underground water level line, and calculating again until the calculation result meets the requirements; the difference value between the underground water level depth and the original underground water level depth is the rainfall depth. The invention provides a novel foundation pit dewatering calculation method, and adopts two modes of drilling while protecting and excavating while protecting, so that the construction speed is increased, the construction speed is accelerated, and the stability of a foundation pit slope is ensured.
本发明涉及建筑施工技术领域，更具体而言，涉及一种适用于高水位地区的基坑降水方法及边坡支护装置，包括采用费伦纽斯的4.5H法（经验法）确定均匀土坡最危险的滑动面，计算滑动面土体体积含水率，根据瑞典条分法得到滑动面上任意一个土条的稳定性系数Km计算表达式，将基坑设计参数代入式（3）进行计算，对比计算结果是否满足要求，如不满足则降低地下水水位线，并再次计算，直到满足，地下水水位深度与原始地下水水位深度之间的差值为降水深度。本发明提出了一种新的基坑降水计算方法，并采取了边钻井边防护和边开挖边防护两种方式，提高了施工速度，加快了施工速度，保证了基坑边坡的稳定性。
Foundation pit dewatering method suitable for high-water-level area and slope supporting device
一种适用于高水位地区的基坑降水方法及边坡支护装置
CAO PENG (author) / LI TIAN (author) / DU JUSHAN (author) / LI HAODONG (author) / YAN GUANGLEI (author) / WEI ZHIKUAN (author) / WU JIANGPENG (author)
2025-01-10
Patent
Electronic Resource
Chinese
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