Ground Treatment Optimization Design of Thick Red Clay Fill in a Project

In recent years, more and more projects are carried out on the platform after the formation of the site. Engineering problems often occur due to improper design and construction. Combined with the actual situation and construction conditions of the project, after comprehensive comparative study and optimization of common foundation treatment methods, construction technology, cost and construction period, the treatment methods such as replacement of sheep gangue and water stabilized materials were finally adopted to solve the problem of thick red clay plain fill treatment of a project. In the design of replacement treatment, e-p curve method and e-lgp curve method considering stress history were adopted. At the same time, combined with the actual working conditions of the project, the foundation deformation after replacement treatment was estimated based on triaxial K₀ consolidation deformation curve method, which solves the difficult problems of settlement and post construction settlement estimation under complex conditions such as consolidation degree estimation of under-consolidated soil, over-consolidated soil and unsaturated soil. It provides theoretical and empirical support for the design scheme. After the successful implementation of the design scheme, the direct cost of more than 3 million Yuan was saved and the construction period was shortened. The design idea and deformation estimation method of red clay plain fill treatment have strong practical reference value.