The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 10, 2021
Filed:
Jul. 11, 2016
Shandong University, Shandong, CN;
Shucai Li, Jinan, CN;
Qingsong Zhang, Jinan, CN;
Guangming Pan, Jinan, CN;
Rentai Liu, Jinan, CN;
Xiao Zhang, Jinan, CN;
Lei Yang, Jinan, CN;
Kai Wang, Jinan, CN;
Zhaofeng Li, Jinan, CN;
Haitong Sui, Jinan, CN;
Teng Yang, Jinan, CN;
Chunguo Liu, Jinan, CN;
SHANDONG UNIVERSITY, Shandong, CN;
Abstract
An anti-collapse grouting consolidation system including: a grouting pump; an outer flat drill rod; a drill rig that clamps the outer flat drill rod; a sealing device, sheathed on the outer flat drill rod at the orifice of a drill hole, ensuring the outer flat drill rod is sealed with the orifice of the drill hole; and a jet grouting drill bit with bi-directional rib wings. The grouting pump jets slurry into the drill hole in a static osmotic manner through the jet grouting drill bit. A method of using an anti-collapse grouting consolidation system includes, among other things, injecting quick-setting slurry; sealing an orifice hole of the drill hole by an orifice sealing device; and keeping an anti-collapse jet grouting drill bit with bi-directional rib wings repeatedly moving up and down and rotating at a repair segment to repair the repair segment.