Experimental Study And Numerical Analysis Of Reinforced Mixing Pile

The reinforced mixing pile is an initiated new pile type, the shaft of which is composed of cement-soil ring and reinforced concrete which is inserted in the ring after a while. The inserted core pile enhanced the pile's inflexibility and the section'scarring capacity, so that we can make the best of the pile lateral surface frictional force and the pile's materials. As result we can gain better economy .Furthermore, the new pile has a series of advantages such as more reliable quality and lighter pollution etc. So the reinforced pile is a type of pile with bright future.Recently we have made a pilot study in the bearing theory of the reinforced mixing pile, but most of them which we have made are all about the short pile with lowed bearing capacity. In order to gain higher bearing capacity of the pile and popularize the pile in Tianjin.The further study of the longer pile is cried for. By means of field test for the pile of 15 meters length and MARC finite element analysis, this paper studies the bearing mechanism of the reinforced mixing pile, analyzes the law of load transfer and the percentage about cement-soil ring and reinforced concrete core under vertical load, analyzes the change law and interactive behavior about the pile's surface bearing and end bearing. In the end an experiential equation that can be used in Tianjin area to estimate the bearing capacity of single pile is proposed on the basis of test researches and finite element analysis.In a word, by means of test research and finite element analysis, the paper draws some new conclusion, which provides some practice materials and academic base for the pile's use in Tianjin area.In a word, by means of test research and finite element analysis ,the paper draws some new conclusion, which provides some practice materials and academic base for the pile's use in Tianjin area.