| 摘要 |
PURPOSE:To consolidate the footing block of a support pile into the bearing stratum by a method in which cement mortar is injected into the bearing ground while pulling up an auger head, and the auger head and a casing are pushed into the cement mortar. CONSTITUTION:The ground is excavated while turning an auger head 1 and a casing 4 until the bearing stratum A is reached, and cement mortar is injected while pulling up the auger head 1 and the casing 4 to build up a footing block B. While turning the auger head 1 and the casing 4, the footing block B is consolidated into the bearing stratum A to form the footing block B'. The auger head 1 is lowered projectionally from the casing 4 in a repeated manner, and only the auger head 1 is drawn out to the ground's surface. An iron bar cage 8 and cement mortar are charged into the casing 4 and the casing 4 is drawn out to the ground's surface to form a support pile P. |
