Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method and device for solidifying top of gravel pile based on MICP technology
The invention discloses a method and device for solidifying the top of a gravel pile based on the MICP technology. According to the method and device for solidifying the top of the gravel pile based on the MICP technology, a grouting device and a grout pumping device are arranged in a to-be-reinforced area of the top of the gravel pile, pressure grouting is conducted through the grouting device, meanwhile, grout pumping is conducted through a grout pumping device, and grouting is based on the MICP technology and includes the steps that bacillus pasteurii liquid is injected firstly, and then cementing liquid is injected; and after grouting, the functions of the grouting device and the grout pumping device are exchanged, and the grouting and grout pumping process is conducted again. According to the method and device for solidifying the top of the gravel pile based on the MICP technology, a cementing layer can be formed in a gravel pile top reinforcing area, lateral bulging deformation near the pile top is limited, then the pile body bearing capacity is improved, pile top sedimentation is reduced, the effect is remarkable, and safety and environmental protection are achieved. Only the top of the gravel pile is reinforced, sufficient contact between grout and gravel particles during grouting is guaranteed, thus the reinforcing effect is guaranteed, and resources are saved.
本发明公开了一种基于MICP技术固化碎石桩顶部的方法及装置，本发明在碎石桩桩顶待加固区设置注浆装置和抽浆装置，通过注浆装置进行压力注浆，同时抽浆装置进行抽浆，注浆基于MICP技术：先注入巴氏芽孢杆菌液，再注入胶结液，注浆完成后，将注浆装置与抽浆装置功能互换，再次进行上述注浆抽浆过程。本发明可在碎石桩桩顶加固区形成胶结层，限制桩顶附近侧向鼓胀变形，进而提高桩身承载力，减小桩顶沉降，效果显著，安全环保。本发明只对碎石桩顶部加固，且保证了注浆时浆液与碎石颗粒之间的充分接触，从而保证了加固效果，并节约了资源。
Method and device for solidifying top of gravel pile based on MICP technology
The invention discloses a method and device for solidifying the top of a gravel pile based on the MICP technology. According to the method and device for solidifying the top of the gravel pile based on the MICP technology, a grouting device and a grout pumping device are arranged in a to-be-reinforced area of the top of the gravel pile, pressure grouting is conducted through the grouting device, meanwhile, grout pumping is conducted through a grout pumping device, and grouting is based on the MICP technology and includes the steps that bacillus pasteurii liquid is injected firstly, and then cementing liquid is injected; and after grouting, the functions of the grouting device and the grout pumping device are exchanged, and the grouting and grout pumping process is conducted again. According to the method and device for solidifying the top of the gravel pile based on the MICP technology, a cementing layer can be formed in a gravel pile top reinforcing area, lateral bulging deformation near the pile top is limited, then the pile body bearing capacity is improved, pile top sedimentation is reduced, the effect is remarkable, and safety and environmental protection are achieved. Only the top of the gravel pile is reinforced, sufficient contact between grout and gravel particles during grouting is guaranteed, thus the reinforcing effect is guaranteed, and resources are saved.
本发明公开了一种基于MICP技术固化碎石桩顶部的方法及装置，本发明在碎石桩桩顶待加固区设置注浆装置和抽浆装置，通过注浆装置进行压力注浆，同时抽浆装置进行抽浆，注浆基于MICP技术：先注入巴氏芽孢杆菌液，再注入胶结液，注浆完成后，将注浆装置与抽浆装置功能互换，再次进行上述注浆抽浆过程。本发明可在碎石桩桩顶加固区形成胶结层，限制桩顶附近侧向鼓胀变形，进而提高桩身承载力，减小桩顶沉降，效果显著，安全环保。本发明只对碎石桩顶部加固，且保证了注浆时浆液与碎石颗粒之间的充分接触，从而保证了加固效果，并节约了资源。
Method and device for solidifying top of gravel pile based on MICP technology
一种基于MICP技术固化碎石桩顶部的方法及装置
ZHANG LING (Autor:in) / XU ZEYU (Autor:in) / ZHAO HENG (Autor:in) / ZHOU SHUAI (Autor:in) / ZHOU JIE (Autor:in) / PENG BOCHENG (Autor:in) / YUE SHAO (Autor:in) / LIU YANAN (Autor:in) / LIU YONG (Autor:in)
27.04.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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