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A platform for research: civil engineering, architecture and urbanism
Vibration grouting reinforcement method for water-rich sand layer
The invention provides a vibration grouting reinforcement method for a water-rich sand layer, which comprises the following steps of: firstly, determining a vertical preset grouting interval, the grouting amount of each section of a single hole and the row interval of grouting holes according to the depth of a reinforcement area of the water-rich sand layer, the thickness of the reinforcement area and the effective particle size of a soil sample in the reinforcement area so as to obtain the positions of the grouting holes; then, the positions of the grouting holes are drilled; then, vibration grouting drill rods are inserted into the bottoms of the drilled grouting holes correspondingly, each grouting hole is vibrated according to the preset vibration frequency f in sequence from bottom to top according to the vertical preset grouting interval, then grouting is conducted, and layer-by-layer reinforcement is conducted; compared with a traditional permeation grouting reinforcement method, the vibration grouting reinforcement method has the advantages that the construction period can be shortened, and water and seepage can be well prevented.
本发明提供一种用于富水砂层的振动注浆加固方法，其步骤包括：首先根据富水砂层加固区域深度、加固区域厚度、加固区域土样有效粒径，确定竖向预设注浆间距、单孔每段注浆量以及注浆孔排间距，以获得注浆孔位置；然后对注浆孔位置分别进行钻孔；再将振动注浆钻杆分别插入钻得的注浆孔孔底，对每个注浆孔自下而上依次按照竖向预设注浆间距，先按照预设振动频率f进行振动后再注浆，逐层加固；本发明提供的振动注浆加固方法，相对于传统的渗透注浆加固方法，能够降低施工周期，还能很好地防水防渗。
Vibration grouting reinforcement method for water-rich sand layer
The invention provides a vibration grouting reinforcement method for a water-rich sand layer, which comprises the following steps of: firstly, determining a vertical preset grouting interval, the grouting amount of each section of a single hole and the row interval of grouting holes according to the depth of a reinforcement area of the water-rich sand layer, the thickness of the reinforcement area and the effective particle size of a soil sample in the reinforcement area so as to obtain the positions of the grouting holes; then, the positions of the grouting holes are drilled; then, vibration grouting drill rods are inserted into the bottoms of the drilled grouting holes correspondingly, each grouting hole is vibrated according to the preset vibration frequency f in sequence from bottom to top according to the vertical preset grouting interval, then grouting is conducted, and layer-by-layer reinforcement is conducted; compared with a traditional permeation grouting reinforcement method, the vibration grouting reinforcement method has the advantages that the construction period can be shortened, and water and seepage can be well prevented.
本发明提供一种用于富水砂层的振动注浆加固方法，其步骤包括：首先根据富水砂层加固区域深度、加固区域厚度、加固区域土样有效粒径，确定竖向预设注浆间距、单孔每段注浆量以及注浆孔排间距，以获得注浆孔位置；然后对注浆孔位置分别进行钻孔；再将振动注浆钻杆分别插入钻得的注浆孔孔底，对每个注浆孔自下而上依次按照竖向预设注浆间距，先按照预设振动频率f进行振动后再注浆，逐层加固；本发明提供的振动注浆加固方法，相对于传统的渗透注浆加固方法，能够降低施工周期，还能很好地防水防渗。
Vibration grouting reinforcement method for water-rich sand layer
一种用于富水砂层的振动注浆加固方法
LI XIAOLONG (author) / CHEN YONGLI (author) / ZHONG YANHUI (author) / ZHANG BEI (author) / WANG JIAXIANG (author) / XIAO WEIFAN (author) / GUO MING (author) / ZHAO XIANFENG (author) / CHEN HONGLIANG (author)
2023-08-18
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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