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Foundation pit water flushing method earth excavation construction method
The invention discloses a foundation pit water flushing method earth excavation construction method. The foundation pit water flushing method earth excavation construction method comprises the following steps that S1, early-stage preparation of construction is conducted: a construction scheme is determined, and construction equipment and materials are prepared; S2, a pump set is installed, pipelines are laid, and a pumping test is carried out; S3, sand washing and slurry mixing are conducted, specifically, a washing water source is extracted to conduct continuous and uniform washing on a soil body from the periphery to the center of a foundation pit, and formed muddy water flows to low-lying positions from washing points; S4, mud is pumped and then conveyed out, a mud pump is fixed to the low-lying position of the foundation pit through a buoy mechanism, and scoured mud water is intensively discharged out to a soil unloading point towards the mud pump in a pot bottom shape; S5, a cofferdam is constructed; and S6, slurry discharging, precipitation water separation and clear water discharging are conducted in the cofferdam. According to the foundation pit water flushing method earth excavation construction method, safety is high, environmental protection is achieved, economic benefits are high, continuous and uniform flushing is achieved, and the situation that the height difference is too large due to the fact that flushing time is too long at the same part is avoided.
本发明公开了一种基坑水冲法土方开挖施工方法，包括以下步骤：S1：施工前期准备，确定施工方案，准备施工设备与材料；S2：泵组安装、管道铺设，进行泵送试验；S3：冲砂拌浆，抽取冲刷水源对土体进行连续均匀冲刷，并从四周向基坑中心进行，形成的泥水由冲刷点流向低洼处；S4：抽取泥浆再将泥浆外送，将泥浆泵通过浮筒机构固定在基坑的低洼处，并将冲刷下来的泥水向泥浆泵部位呈锅底状集中外排至卸土点；S5：围堰施工；S6：对围堰内进行排浆、沉淀析水、清水外排。本发明提供一种基坑水冲法土方开挖施工方法，安全性高、环保、经济效益高、且实现了连续均匀冲刷，避免在同一部位冲刷时间过长导致高差过大。
Foundation pit water flushing method earth excavation construction method
The invention discloses a foundation pit water flushing method earth excavation construction method. The foundation pit water flushing method earth excavation construction method comprises the following steps that S1, early-stage preparation of construction is conducted: a construction scheme is determined, and construction equipment and materials are prepared; S2, a pump set is installed, pipelines are laid, and a pumping test is carried out; S3, sand washing and slurry mixing are conducted, specifically, a washing water source is extracted to conduct continuous and uniform washing on a soil body from the periphery to the center of a foundation pit, and formed muddy water flows to low-lying positions from washing points; S4, mud is pumped and then conveyed out, a mud pump is fixed to the low-lying position of the foundation pit through a buoy mechanism, and scoured mud water is intensively discharged out to a soil unloading point towards the mud pump in a pot bottom shape; S5, a cofferdam is constructed; and S6, slurry discharging, precipitation water separation and clear water discharging are conducted in the cofferdam. According to the foundation pit water flushing method earth excavation construction method, safety is high, environmental protection is achieved, economic benefits are high, continuous and uniform flushing is achieved, and the situation that the height difference is too large due to the fact that flushing time is too long at the same part is avoided.
本发明公开了一种基坑水冲法土方开挖施工方法，包括以下步骤：S1：施工前期准备，确定施工方案，准备施工设备与材料；S2：泵组安装、管道铺设，进行泵送试验；S3：冲砂拌浆，抽取冲刷水源对土体进行连续均匀冲刷，并从四周向基坑中心进行，形成的泥水由冲刷点流向低洼处；S4：抽取泥浆再将泥浆外送，将泥浆泵通过浮筒机构固定在基坑的低洼处，并将冲刷下来的泥水向泥浆泵部位呈锅底状集中外排至卸土点；S5：围堰施工；S6：对围堰内进行排浆、沉淀析水、清水外排。本发明提供一种基坑水冲法土方开挖施工方法，安全性高、环保、经济效益高、且实现了连续均匀冲刷，避免在同一部位冲刷时间过长导致高差过大。
Foundation pit water flushing method earth excavation construction method
一种基坑水冲法土方开挖施工方法
WANG QIANG (author) / SHEN LUOPING (author) / WANG LIGANG (author) / HU JIANGPING (author) / HE SAISAI (author)
2021-12-24
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
Earth excavation construction method based on deep foundation pit
| European Patent Office | 2022