Study on the dynamic characteristics of bit anchor cable drilling in the gravel sediments of a soft rock bottom hole

Gao, Kuidong (avtor), Liu, Jihai (avtor), Zeng, Qingliang (avtor), Cheng, Jingyi (avtor), Sun, Liqing (avtor), Lin, Lisong (avtor)

During the pore-forming stage of floor heave treatment, the phenomenon of gravel sediment accumulation in the bottom hole often occurs, which causes great difficulties in the normal installation of the anchor cable. Based on this observation, a new anchor cable installation method was proposed, which involves installing a drill bit at the front end of the anchor cable to assist its drilling. With the help of an anchor cable drilling test bench, the influence of the bit, motion parameters, and hole environment on the performance of anchor cable drilling was studied. Through the co-simulation of the discrete element method (i.e., multibody dynamics (DEM-MBD)), the drilling process of the bit anchor cable was simulated, and the dynamic characteristics of the bit anchor cable drilling in the bottom hole gravel sediment were analysed. The results show that installing a drill bit in front of the anchor cable can greatly reduce the drilling resistance and hamper torque during anchor cable drilling. When the rotational direction of the bit anchor cable is consistent with the spiral direction of the anchor cable, the bit anchor cable can exhibit better drilling performance. The drilling resistance and hindering torque of the bit anchor cable are the largest when drilling in soaked particles, followed by drilling in dry particles, and the smallest occurs when drilling in moist particles. The research results can provide reference for the parameter setting of anchor cable auxiliary installation equipment.

• Jezik: Angleški jezik
• Ključne besede: bit, anchor cable, gravel drilling, dynamic characteristic
• Vrsta gradiva: Članek v reviji
• Tipologija: 1.01 - Izvirni znanstveni članek
• Organizacija: FS - Fakulteta za strojništvo
• Status publikacije: Objavljeno
• Različica publikacije: Objavljena publikacija
• Leto izida: 2023
• Št. strani: Str. 3-16
• Številčenje: Vol. 69, no. 1/2
• PID: 20.500.12556/RUL-144878
• UDK: 531.3
• ISSN pri članku: 0039-2480
• DOI: 10.5545/sv-jme.2022.383
• COBISS.SI-ID: 145626883
• Datum objave v RUL: 20.03.2023

Gradivo je del revije

• Naslov: Strojniški vestnik
• Skrajšan naslov: Stroj. vestn.
• Založnik: Zveza strojnih inženirjev in tehnikov Slovenije [etc.], = Association of Mechanical Engineers and Technicians of Slovenia [etc.
• ISSN: 0039-2480
• COBISS.SI-ID: 762116

Licence

• Licenca: CC BY-NC 4.0, Creative Commons Priznanje avtorstva-Nekomercialno 4.0 Mednarodna
• Povezava: http://creativecommons.org/licenses/by-nc/4.0/deed.sl
• Opis: Licenca Creative Commons, ki prepoveduje komercialno uporabo, vendar uporabniki ne rabijo upravljati materialnih avtorskih pravic na izpeljanih delih z enako licenco.

Sekundarni jezik

• Jezik: Slovenski jezik
• Naslov: Študija dinamičnih lastnosti vrtanja sidrnih vrvi z nastavkom v peščene sedimente spodnjih vrtin v mehki zemljini
• Ključne besede: vrtalni nastavki, sidrne vrvi, vrtanje v pesek, dinamične lastnosti, diskretna zrna

Projekti

• Financer: Drugi - Drug financer ali več financerjev
• Program financ.: National Natural Science Foundation of China
• Številka projekta: 52174146

• Financer: Drugi - Drug financer ali več financerjev
• Program financ.: Project of Shandong Province Higher Educational Young Innovative Talent Introduction and Cultivation Team
• Naslov: Performance enhancement of deep coal mining equipment