BOPI 05 BR/2023 REPERTOIRE NUMERIQUE 14 (74) SCP ATANGA IP, 2nd Floor TAYOU BLDG FOKOU-Douche, P.O. Box 4663, DOUALA (CM). (57) Disclosed are methods and modular devices for processing hydrocarbon feedstocks. In particular, the methods and modular devices disclosed herein provide for increasing the amounts of light fractions obtainable from a hydrocarbon feedstock. Consulter le mémoire ________________________________________ (11) 20936 (51) E02D 5/34 (2018.01); E02D 5/62 (2018.01) (21) 1202100085 - PCT/CN2019/093599 (22) 28/06/2019 (30) CN n° 201811586047.5 du 25/12/2018 (54) Pile-bottom grouting cavity and method for using same, and cast-in-place pile body and method for constructing same. (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) Disclosed are a pile-bottom grouting cavity and a method for using same, and a cast-in-place pile body and a method for constructing same. The pile-bottom grouting cavity comprises: a grouting capsule, having an expansion state in which the grouting capsule is filled with grout to bear a pile body, and a contracted state in which the grouting capsule is hollow; a grouting pipe in communication with an inner cavity of the grouting capsule to grout the grouting capsule; and a fixing plate, with the grouting capsule being arranged on the fixing plate, and the fixing plate being provided with a through hole that is in communication with the bottom of an accommodation hole, such that slurry and/or sediment in the accommodation hole pass through the fixing plate. The aim thereof is to solve the problems in the prior art of hole wall collapse and excessive sediment that seriously affect the quality of construction in a grouting pile with a grouting capsule during the construction of a cast-in-place bored pile.
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