Application Of Treatment To Fill Foundation With Lime-soil Compaction Piles Thrusted-explanded In Column-hammer

Thrusted-expanded lime-soil compaction pile method thrusted-expanded a hammer and lime-soil compaction fill the integration of soil to achieve the purpose of the rule territories through the pile of soil compaction of the salt and lime-soil filling replacement, cementing sclerosis Such as the role of soil has been effective reinforcement. Miscellaneous fill low-intensity, high-compression, the uniformity of poor, the general also has collapsible water. Thrusted-expanded lime-soil compaction pile of miscellaneous fill the foundation to deal with the foundation, the foundation can improve the filling of miscellaneous nature of the project, the foundation bearing capacity significantly increased.Papers of cylindrical holes expansion theory and Moore - Coulomb strength criterion soil around the pile-on elastic-plastic model of an ideal, stress drop model, the linear model of softening into the analysis shows that the soil around the pile of shells, all the plastic zone Stress solution, theoretically the compaction radius of the hole wall and the relationship between the pressure-and draw a radius of compaction, the pressure on the hole wall, a hole diameter and depth of the relationship between the curve and analyzed.With Kang Xin Road ground treatment works, a natural soil load test, the piles of soil load test, pile load test piles of soil and water load test and test data were analyzed, the characteristics of that capacity and Deformation of the thrusted-expanded lime-soil compaction pile of the design was discussed.Research shows that the use of thrusted-expanded lime-soil compaction pile of miscellaneous fill the deep foundation to deal with the foundation, the foundation bearing capacity can be effectively improved, and deal with the foundation does not have collapsible. Adopted cloth reasonable pile, thrusted-expanded lime-soil compaction pile of dealing with the depth and value beyond the bearing capacity of standard features of a given value of a certain scope, that the foundation approach has a potential for development, worthy of research and promotion.