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Tesla valve type anti-gravity grouting plate suitable for repairing surface layer of sand foundation
The invention provides a Tesla valve type anti-gravity grouting plate suitable for repairing a sand foundation surface layer, and belongs to the technical field of sand foundation grouting reinforcement. The grouting plate comprises a grouting plate body, a grouting channel is formed in the grouting plate body, the grouting channel is of a multi-stage Tesla valve type structure, and when grout is converged in the grouting channel, the flow direction of one strand of grout is in the inclined upward direction, so that the flow speed of the converged grout is reduced. By means of the reverse Tesla valve structure, slurry is continuously decelerated in the flowing process in the grouting plate, the anti-gravity effect that the upper flow is large and the lower flow is small is achieved, the slurry flow in the upper soil body in the grouting reinforcement process is improved, the slurry flow in the deep soil body is reduced, and the grouting reinforcement effect is improved. The grouting amounts of different depths are matched with the additional stress distribution of the foundation, and the problems that during longitudinal grouting, surface soil is prone to being blocked, and the reinforcing effect of upper sand in floral tube grouting is poor can be solved.
本发明提供一种适用于砂土地基表层修复的特斯拉阀式反重力注浆板，属于砂土地基注浆加固技术领域。该注浆板包括注浆板本体，所述注浆板本体内设有注浆通道，所述注浆通道为多级特斯拉阀式结构，浆液在所述注浆通道内汇合时，其中一股浆液的流向呈斜向上方向，使汇合后的浆液流速降低。本发明利用反向的特斯拉阀结构，使浆液在注浆板内流动的过程中被不断减速，实现上部流量大、下部流量小的反重力效果，提高注浆加固过程中上层土体中的浆液流量，并减小深层土体的浆液流量，使不同深度的注浆量与地基的附加应力分布相适配，可解决纵向注浆时表层土体容易堵塞、花管注浆上层砂土加固效果差的问题。
Tesla valve type anti-gravity grouting plate suitable for repairing surface layer of sand foundation
The invention provides a Tesla valve type anti-gravity grouting plate suitable for repairing a sand foundation surface layer, and belongs to the technical field of sand foundation grouting reinforcement. The grouting plate comprises a grouting plate body, a grouting channel is formed in the grouting plate body, the grouting channel is of a multi-stage Tesla valve type structure, and when grout is converged in the grouting channel, the flow direction of one strand of grout is in the inclined upward direction, so that the flow speed of the converged grout is reduced. By means of the reverse Tesla valve structure, slurry is continuously decelerated in the flowing process in the grouting plate, the anti-gravity effect that the upper flow is large and the lower flow is small is achieved, the slurry flow in the upper soil body in the grouting reinforcement process is improved, the slurry flow in the deep soil body is reduced, and the grouting reinforcement effect is improved. The grouting amounts of different depths are matched with the additional stress distribution of the foundation, and the problems that during longitudinal grouting, surface soil is prone to being blocked, and the reinforcing effect of upper sand in floral tube grouting is poor can be solved.
本发明提供一种适用于砂土地基表层修复的特斯拉阀式反重力注浆板，属于砂土地基注浆加固技术领域。该注浆板包括注浆板本体，所述注浆板本体内设有注浆通道，所述注浆通道为多级特斯拉阀式结构，浆液在所述注浆通道内汇合时，其中一股浆液的流向呈斜向上方向，使汇合后的浆液流速降低。本发明利用反向的特斯拉阀结构，使浆液在注浆板内流动的过程中被不断减速，实现上部流量大、下部流量小的反重力效果，提高注浆加固过程中上层土体中的浆液流量，并减小深层土体的浆液流量，使不同深度的注浆量与地基的附加应力分布相适配，可解决纵向注浆时表层土体容易堵塞、花管注浆上层砂土加固效果差的问题。
Tesla valve type anti-gravity grouting plate suitable for repairing surface layer of sand foundation
一种适用于砂土地基表层修复的特斯拉阀式反重力注浆板
WU CHUANGZHOU (author) / ZHANG SHIXIA (author) / ZHANG FENGSHOU (author) / LI ZUOYONG (author)
2024-02-13
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
Assembled simple foundation reinforcement grouting valve
| European Patent Office | 2021