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A platform for research: civil engineering, architecture and urbanism
Water stopping method for foundation pit in pebble stratum
The invention discloses a foundation pit water stopping method in a pebble stratum, and relates to the technical field of civil construction. The method comprises the steps that firstly, an on-site pile testing test is conducted, after a pile hole position is accurately positioned, a high-pressure jet grouting pile is in place, leveling is conducted, the length of a drill rod is checked, and after a guide hole is drilled, a first motor and a second motor drive a jet grouting pipe to conduct drilling and grouting operation from bottom to top; secondly, after grouting of the high-pressure jet grouting pile is completed, a first motor and a second motor are started to drive a jet grouting pipe to rotate and ascend, meanwhile, a cleaning assembly is started to enable a cleaning brush to clean cement residues on the jet grouting pipe, and then a limiting assembly is opened to clean the cement residues on a dust blocking plate; the method has the beneficial effects that grouting is conducted on the outer side of the jet grouting pile, the water stopping effect of the pebble stratum is improved by injecting the cement-water glass double-liquid slurry through a sleeve valve pipe method, the method is suitable for the pebble stratum, the problem that water stopping of the pebble stratum is difficult is solved, and the effects of being short in construction period, easy and convenient to construct and low in cost are achieved.
本发明公开了一种卵石地层中基坑止水方法，涉及土木施工技术领域，包括以下步骤；步骤一：首先进行现场试桩试验，在准确定位桩孔位后，高压旋喷桩就位、调平、校验钻杆长度，引孔钻好后通过第一电机和第二电机带动旋喷管自下而上进行钻孔注浆作业；步骤二：采用高压旋喷桩注浆完毕后，启动第一电机和第二电机带动旋喷管旋转上升，同时启动清洗组件使清洗刷将旋喷管上的水泥残渣干净，然后打开限位组件清洗阻尘板上的水泥残渣；本发明的有益效果：旋喷桩外侧注浆，并通过袖阀管法加注水泥水玻璃双液浆提高卵石地层的止水效果，该方法适用于卵石地层，克服了卵石地层止水难的难题，具有施工周期短、施工简便、成本低的效果。
Water stopping method for foundation pit in pebble stratum
The invention discloses a foundation pit water stopping method in a pebble stratum, and relates to the technical field of civil construction. The method comprises the steps that firstly, an on-site pile testing test is conducted, after a pile hole position is accurately positioned, a high-pressure jet grouting pile is in place, leveling is conducted, the length of a drill rod is checked, and after a guide hole is drilled, a first motor and a second motor drive a jet grouting pipe to conduct drilling and grouting operation from bottom to top; secondly, after grouting of the high-pressure jet grouting pile is completed, a first motor and a second motor are started to drive a jet grouting pipe to rotate and ascend, meanwhile, a cleaning assembly is started to enable a cleaning brush to clean cement residues on the jet grouting pipe, and then a limiting assembly is opened to clean the cement residues on a dust blocking plate; the method has the beneficial effects that grouting is conducted on the outer side of the jet grouting pile, the water stopping effect of the pebble stratum is improved by injecting the cement-water glass double-liquid slurry through a sleeve valve pipe method, the method is suitable for the pebble stratum, the problem that water stopping of the pebble stratum is difficult is solved, and the effects of being short in construction period, easy and convenient to construct and low in cost are achieved.
本发明公开了一种卵石地层中基坑止水方法，涉及土木施工技术领域，包括以下步骤；步骤一：首先进行现场试桩试验，在准确定位桩孔位后，高压旋喷桩就位、调平、校验钻杆长度，引孔钻好后通过第一电机和第二电机带动旋喷管自下而上进行钻孔注浆作业；步骤二：采用高压旋喷桩注浆完毕后，启动第一电机和第二电机带动旋喷管旋转上升，同时启动清洗组件使清洗刷将旋喷管上的水泥残渣干净，然后打开限位组件清洗阻尘板上的水泥残渣；本发明的有益效果：旋喷桩外侧注浆，并通过袖阀管法加注水泥水玻璃双液浆提高卵石地层的止水效果，该方法适用于卵石地层，克服了卵石地层止水难的难题，具有施工周期短、施工简便、成本低的效果。
Water stopping method for foundation pit in pebble stratum
一种卵石地层中基坑止水方法
QIN QINGTONG (author) / PENG JIZHENG (author) / FU JIN (author) / QIN HUAN (author) / WU WENJIE (author) / YU LEI (author) / LI PENG (author) / WAN WEI (author) / HE CHAOYUN (author) / LIN JIANLI (author)
2023-04-14
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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