关键词: 黄土地层, 矩形抗滑桩, 旋挖钻

Abstract:

In order to complete the rectangular anti-slide pile safely, quickly and efficiently, shorten the construction period and reduce the cost, the construction method and technology of anti-slide pile are optimized and improved by studying the traditional practice of anti-slide pile in China and abroad. The steel pipe is adopted at holehead of rectangular anti-slide pile to provide protection and guidance, and the method of soil collection by small bit + middle soil collection by big bit + edge repairing by rectangular trimming device + overall adjustment of reinforcing bar cage + grouting by conduit is adopt in hole to achieve fast hole and pile forming. The matching mechanical construction tools, methods and techniques are developed. By comparing to traditional pile drilling method, the method mentioned-above is with higher efficiency, lower cost and less risk.

Key words: loess stratum, rectangular anti-slide pile, rotary drilling