Construction method and device for preserved hole of equipment foundation bolt

• Main Authors: CHEN XIANGRONG, WANG XIAOLI, YANG LIFENG, LI XIAOKAI, WANG LAISUO, ZHOU CHUANMING, LIU LIUYI, QIAN HAIYING, FAN KAIPING, LIU TAO
• Format: Patent
• Language: Chinese; English
• Published: 14.03.2012
• Subjects: EMBANKMENTS; EXCAVATIONS; FIXED CONSTRUCTIONS; FOUNDATIONS; HYDRAULIC ENGINEERING; SOIL SHIFTING; UNDERGROUND OR UNDERWATER STRUCTURES

The invention discloses a construction method and device for a preserved hole of an equipment foundation bolt. A construction hole forming device for the preserved hole is designed and manufactured and is a prismatoid shaping steel mould comprising side plates, longitudinal and transverse ribs, a base plate, a nut cap and a fixed frame, wherein the side plates are of an isosceles trapezoid shape; the longitudinal and transverse ribs are respectively welded at the inner sides and the outer sides of the side plates; four side plates are welded to form a prismatoid square port tube; the base plate is square; the outer longitudinal and transverse ribs are welded to be square; the inner longitudinal and transverse ribs are welded to be crossed; the base plate is welded with a large port end of the prismatoid; and the nut cap is welded at the small port end of the prismatoid. The prismatoid shaping steel mould is mounted and positioned; after the prismatoid shaping steel mould is accurately positioned, the steel mo