Ultra-long spiral drilling machine for mud flat cast-in-place pile and construction method

• Main Authors: WANG YING, DONG BAILIN, FANG YANLI, LIU YASHI, ZHAO QIYANG, ZHAO DACHUANG, DU ZHUO, AI RUOXIN, ZHANG JUNMEI, YANG YUQING, WANG XU, XU RUODAN, WANG RUI, DONG ZHANXIA, JIA HENG, ZHENG QING, WANG YAKUN
• Format: Patent
• Language: Chinese; English
• Published: 01.03.2024
• Subjects: EARTH DRILLING; EARTH DRILLING, e.g. DEEP DRILLING; EMBANKMENTS; EXCAVATIONS; FIXED CONSTRUCTIONS; FOUNDATIONS; HYDRAULIC ENGINEERING; MINING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS; SOIL SHIFTING; UNDERGROUND OR UNDERWATER STRUCTURES

The invention discloses an ultra-long spiral drilling machine for a mud flat cast-in-place pile and a construction method. The ultra-long spiral drilling machine mainly comprises a pile frame and a drilling system. The pile frame comprises a chassis, telescopic oil cylinder supporting legs, walking oil cylinders and detachable stand columns. The drilling system comprises a power head, the top of the power head is connected with a concrete pumping pipeline, the bottom of the power head is connected with a spiral drilling tool, the spiral drilling tool comprises a spiral drilling rod and a spiral drilling bit, and conical alloy cutting teeth are arranged on the spiral drilling bit; the power head is arranged on the stand column in a sliding mode, a pulley assembly is arranged on the top of the stand column, the power head is hung on the stand column, and the other end of an arranged traction rope is connected with a winch. And a drilling tool cleaning device is arranged on one side of the spiral drilling tool.