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Method for forming vibro-replacement gravel pile under ultra-deep covering layer of ultra-strong seismic zone
The invention discloses a method for forming a vibro-replacement gravel pile under an ultra-deep covering layer of an ultra-strong seismic zone, which comprises the following steps: carrying out rapid vibro-replacement pore-forming construction on a stratum through a vibro-replacement device with the perpendicularity meeting the requirement and launching water so as to form a gravel pile hole with the perpendicularity meeting the requirement; gravel fillers are accurately placed into the gravel pile holes in batches through a loading machine, the gravel fillers placed into the gravel pile holes in batches one by one are subjected to vibroflotation and densification through a vibroflotation device, and N gravel pile sections are formed; the pile diameter of each gravel pile section is calculated and stored according to the filling amount of the gravel filling materials placed in the gravel pile holes in each batch; and comparing all the calculated pile diameters of the gravel pile sections one by one to obtain the minimum pile diameter serving as the guaranteed pile diameter of the gravel pile. According to the method, the vibroflot can accelerate vibroflot construction on the deep and thick covering layer stratum with the thickness being 50 m or above according to the stratum condition and the perpendicularity meeting the requirement, the gravel pile has the guaranteed pile diameter, and the gravel pile can be tightly combined with the soil layer.
本发明公开了一种超强地震带超深覆盖层下形成振冲碎石桩的方法,包括:通过垂直度符合要求的振冲器和下水对地层进行快速振冲造孔施工,以形成垂直度符合要求的碎石桩孔;通过装载机将碎石填料分批次精准置入所述碎石桩孔中,通过所述振冲器对逐一对分批次置入所述碎石桩孔中的碎石填料进行振冲加密,形成N个碎石桩段;利用每批次置入碎石桩孔内的碎石填料的填料量,计算并保存每个碎石桩段的桩径;通过将所有计算的碎石桩段的桩径逐一进行比较,得到作为碎石桩保证桩径的最小桩径。本发明方法,使振冲器能根据地层条件及符合要求的垂直度对50m以上深厚覆盖层地层加速振冲施工,并使碎石桩具有保证桩径,且能与土层紧密结合在一起。
Method for forming vibro-replacement gravel pile under ultra-deep covering layer of ultra-strong seismic zone
The invention discloses a method for forming a vibro-replacement gravel pile under an ultra-deep covering layer of an ultra-strong seismic zone, which comprises the following steps: carrying out rapid vibro-replacement pore-forming construction on a stratum through a vibro-replacement device with the perpendicularity meeting the requirement and launching water so as to form a gravel pile hole with the perpendicularity meeting the requirement; gravel fillers are accurately placed into the gravel pile holes in batches through a loading machine, the gravel fillers placed into the gravel pile holes in batches one by one are subjected to vibroflotation and densification through a vibroflotation device, and N gravel pile sections are formed; the pile diameter of each gravel pile section is calculated and stored according to the filling amount of the gravel filling materials placed in the gravel pile holes in each batch; and comparing all the calculated pile diameters of the gravel pile sections one by one to obtain the minimum pile diameter serving as the guaranteed pile diameter of the gravel pile. According to the method, the vibroflot can accelerate vibroflot construction on the deep and thick covering layer stratum with the thickness being 50 m or above according to the stratum condition and the perpendicularity meeting the requirement, the gravel pile has the guaranteed pile diameter, and the gravel pile can be tightly combined with the soil layer.
本发明公开了一种超强地震带超深覆盖层下形成振冲碎石桩的方法,包括:通过垂直度符合要求的振冲器和下水对地层进行快速振冲造孔施工,以形成垂直度符合要求的碎石桩孔;通过装载机将碎石填料分批次精准置入所述碎石桩孔中,通过所述振冲器对逐一对分批次置入所述碎石桩孔中的碎石填料进行振冲加密,形成N个碎石桩段;利用每批次置入碎石桩孔内的碎石填料的填料量,计算并保存每个碎石桩段的桩径;通过将所有计算的碎石桩段的桩径逐一进行比较,得到作为碎石桩保证桩径的最小桩径。本发明方法,使振冲器能根据地层条件及符合要求的垂直度对50m以上深厚覆盖层地层加速振冲施工,并使碎石桩具有保证桩径,且能与土层紧密结合在一起。
Method for forming vibro-replacement gravel pile under ultra-deep covering layer of ultra-strong seismic zone
超强地震带超深覆盖层下形成振冲碎石桩的方法
SUN LIANG (Autor:in) / GUO WANHONG (Autor:in) / SHI FENG (Autor:in)
22.09.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
Europäisches Patentamt | 2023
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