Main Types And Their Adaptability Analysis For The Ground Treatment In Laiyang City

With the rapid development of ground treatment techniques, more and more attention is put upon complex ground treatment. For different geological situation, different ways of ground treatment should be adopted. Laiyang city located in the hinterland of Jiaodong area, it owns a complex geological status. This is analyzed systemically in the paper. The following issues are studied: Laiyang city's engineering geological type and its characteristic, soil engineering geological type and engineering geological evaluation criterion, physical mechanics property and earthquake effect of Laiyang city's engineering geology. Base on the comprehensive analysis of Laiyang city's geological situation, the suitable ground treatment methods are researched, The theory and method of cement injection pile and changing cover soil mattress for ground treatment are put enough attention in this paper. For, the cement injection pile and changing cover soil mattress ground treatment method, key technologies of pinning up mechanism, application area, design and construction are probed. How to check and accept for the cement injection pile is discussed. The cost of the cement injection pile method is also analyzed. The method of changing cover soil mattress is one of the most far-ranging ground treatment methods in Laiyang city. It is studied in the following aspects: soil characteristics of changing cover soil mattress, reinforcing mechanism, application range, construction control, quality checking and its design. At last, examples for the application of cement injection pile and changing cover soil mattress ground treatment is given. Anothertwo ground treatment methods——dynamic consolidation method and fragment pile ground treatmentare introduced in this paper. For drilling pressure super-flowing casting pile aiming ground treatment, its technology characteristic, technology method and construction process are analyzed.