Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Spiral steel pile for segmented pressure grouting and grouting process of spiral steel pile
The invention discloses a spiral steel pile for segmented pressure grouting. The spiral steel pile comprises a spiral steel pile body and a grouting device. The spiral steel pile body comprises a first centre steel shaft and spiral blades arranged on the outer wall of the first centre steel shaft, the first centre steel shaft is of a hollow structure with the sealed bottom part, a steel shaft grout outlet is further formed in the first centre steel shaft, bowl-shaped grout-stop plugs are arranged at two ends of the grouting device, and a grout outlet of the grouting device is formed in the grouting device. The invention further provides a grouting process adopting the spiral steel pile for segmented pressure grouting. Segmented grouting can be quickly carried out, casing materials are notneeded before grouting, drilling is not needed, the spiral steel pile can further be used as a part of a foundation to share upper loads after grouting, and the spiral steel pile can further be quickly unscrewed to be repeatedly used.
本发明公开了一种分段压力注浆的螺旋钢桩，包括螺旋钢桩和注浆器，所述螺旋钢桩包括第一中心钢轴和设于该第一中心钢轴外壁上的螺旋叶片，所述第一中心钢轴为中空且底部密封的结构，所述第一中心钢轴上还设有钢轴出浆口，所述注浆器的两端均设有碗形止浆塞，且所述注浆器上设有注浆器出浆口。本发明还提供了一种采用分段压力注浆的螺旋钢桩的注浆工艺，本发明能快速进行分段注浆，注浆前无需套壳料，无需钻孔，注浆后螺旋钢桩也能作为地基的一部分分担上部荷载，螺旋钢桩也能快速旋出，反复利用。
Spiral steel pile for segmented pressure grouting and grouting process of spiral steel pile
The invention discloses a spiral steel pile for segmented pressure grouting. The spiral steel pile comprises a spiral steel pile body and a grouting device. The spiral steel pile body comprises a first centre steel shaft and spiral blades arranged on the outer wall of the first centre steel shaft, the first centre steel shaft is of a hollow structure with the sealed bottom part, a steel shaft grout outlet is further formed in the first centre steel shaft, bowl-shaped grout-stop plugs are arranged at two ends of the grouting device, and a grout outlet of the grouting device is formed in the grouting device. The invention further provides a grouting process adopting the spiral steel pile for segmented pressure grouting. Segmented grouting can be quickly carried out, casing materials are notneeded before grouting, drilling is not needed, the spiral steel pile can further be used as a part of a foundation to share upper loads after grouting, and the spiral steel pile can further be quickly unscrewed to be repeatedly used.
本发明公开了一种分段压力注浆的螺旋钢桩，包括螺旋钢桩和注浆器，所述螺旋钢桩包括第一中心钢轴和设于该第一中心钢轴外壁上的螺旋叶片，所述第一中心钢轴为中空且底部密封的结构，所述第一中心钢轴上还设有钢轴出浆口，所述注浆器的两端均设有碗形止浆塞，且所述注浆器上设有注浆器出浆口。本发明还提供了一种采用分段压力注浆的螺旋钢桩的注浆工艺，本发明能快速进行分段注浆，注浆前无需套壳料，无需钻孔，注浆后螺旋钢桩也能作为地基的一部分分担上部荷载，螺旋钢桩也能快速旋出，反复利用。
Spiral steel pile for segmented pressure grouting and grouting process of spiral steel pile
分段压力注浆的螺旋钢桩及其注浆工艺
SU QIAN (Autor:in) / LIU KAIWEN (Autor:in) / SHAO KANG (Autor:in) / CHEN DE (Autor:in) / HUANG JUNJIE (Autor:in) / WANG XUN (Autor:in) / WANG WUBIN (Autor:in)
17.04.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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