Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Precipitation well casing and method for blocking reserved hole of foundation pit through precipitation well casing
The invention discloses a method for blocking a reserved hole of a foundation pit. The method comprises the following steps that (1) the reserved hole of the foundation pit is blocked; and (2) a precipitation well is blocked, i.e., a water pump is taken out after concrete for blocking the reserved hole reaches a certain strength, a well casing body is quickly filled with materials which slowly expand when encountering water, meanwhile, a drain valve of the well casing body is opened, and the water pump is used for continuously drawing water for a drainage port in the side face of the drain valve; it is ensured that the water level in the well casing body is lower than the height of a first blocking plate which is prearranged on the upper portion of the drain valve, and the first blocking plate is welded; and micro-expansion concrete is poured on the first blocking plate until reaching the position of a prearranged second blocking plate, and the second blocking plate is welded. According to the method for blocking the reserved hole of the foundation pit and the precipitation well for the reserved hole of the foundation pit, the reserved hole and the precipitation well can be blocked successfully when ground water pressure is large or water inflow is large, the blocking quality is good, blocking is easy and convenient, the construction cost is low, and the method has popularization value.
Precipitation well casing and method for blocking reserved hole of foundation pit through precipitation well casing
The invention discloses a method for blocking a reserved hole of a foundation pit. The method comprises the following steps that (1) the reserved hole of the foundation pit is blocked; and (2) a precipitation well is blocked, i.e., a water pump is taken out after concrete for blocking the reserved hole reaches a certain strength, a well casing body is quickly filled with materials which slowly expand when encountering water, meanwhile, a drain valve of the well casing body is opened, and the water pump is used for continuously drawing water for a drainage port in the side face of the drain valve; it is ensured that the water level in the well casing body is lower than the height of a first blocking plate which is prearranged on the upper portion of the drain valve, and the first blocking plate is welded; and micro-expansion concrete is poured on the first blocking plate until reaching the position of a prearranged second blocking plate, and the second blocking plate is welded. According to the method for blocking the reserved hole of the foundation pit and the precipitation well for the reserved hole of the foundation pit, the reserved hole and the precipitation well can be blocked successfully when ground water pressure is large or water inflow is large, the blocking quality is good, blocking is easy and convenient, the construction cost is low, and the method has popularization value.
Precipitation well casing and method for blocking reserved hole of foundation pit through precipitation well casing
SONG YUGANG (Autor:in) / XIE BO (Autor:in) / LIU HAIFENG (Autor:in) / WANG FENGSHUN (Autor:in) / QUAN YOUWEI (Autor:in)
23.12.2015
Patent
Elektronische Ressource
Englisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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