BOPI 05 BR/2023 REPERTOIRE NUMERIQUE 15 Fig. 1 Consulter le mémoire ________________________________________ (11) 20937 (51) E02D 5/62 (2018.01) (21) 1202100137 - PCT/CN2019/091230 (22) 14/06/2019 (30) CN n° 201811091450.0 du 25/09/2018 (54) Grouting consolidation method for full casing borehole guide prefabricated pile and prefabricated pile therefor. (72) GAO, Yongguang (CN) et GAO, Yunfei (CN) (73) Beijing Keruihengji Construction Technology Development Co., Ltd., 101-A017, Floor 1-3, Building 26, No. 17 Huanke Middle Road, Tongzhou Park Jinqiao Science and Technology Industry Base, Zhongguancun Science and Technology Park, Tongzhou District, BEIJING 101149 (CN) (74) SPOOR & FISHER Inc. NGWAFOR & PARTNERS Sarl, The House of Gideon, Golf/Bastos Quarters, Opposite The American Embassy, Entrance-Saint John Paul II Boulevard, P.O. Box 8211, YAOUNDE (CM). (57) A grouting consolidation method for a full casing borehole guide prefabricated pile, comprising the following steps: SI, driving a drilling rig carrying a casing (1) to perform borehole construction, the borehole construction being performed to a preset hole depth to form a borehole (2); S2. the casing (1) being housed in the borehole (2); S3, implanting a prefabricated pile (4) into the borehole (2) so that the prefabricated pile (4) reaches a hole bottom of the borehole (2); S4. injecting a slurry (3) into the borehole (2); S5. pulling out the casing (1) so that the prefabricated pile (4) and an inner cavity of the borehole (2) are fixed and cemented into an integrated structure. Also provided is a prefabricated pile, comprising a pile body and a grouting channel (5) provided on the pile body, wherein a liquid inlet end (11) of the grouting channel (5) extends out from an upper end surface of the pile body and a liquid outlet end (12) of the grouting channel (5) extends out from a lower end surface of the pile body and/or a side surface of the pile body.
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