Case History of Soil Improvements of Miscellaneous Fills in Yellow River Delta Alluvium of Shandong

Abstract

Abstract: In the urban construction, the improvement of miscellaneous fill soils is frequently encountered. The miscellaneous fill soil in Shandong Yellow River delta alluvium has the characterization of shallow groundwater and soft soil underlying layers. The two typical characterizations strongly affect the selection of soil improvement methods, soil improvement depth, material and construction equipment. Based on the site subsurface conditions as well as building requirements at two sites, three soil improvement methods; CementFlyash Gravel (CFG) columns; soil replacement with compacted graded sand and gravel and composite ground with columns of expanded base formed by founding; are compared and discussed. This design and construction aspects of these soil improvement methods are also introduced.

Key words: Miscellaneous Fills, Soil Improvement, Soil Replacement, Composite Ground with Cement Flyash and Gravel Columns, Composite Ground with Columns of Expanded Base Formed by Pounding

HOU Fang. Case History of Soil Improvements of Miscellaneous Fills in Yellow River Delta Alluvium of Shandong[J]. , 2017, 31(6): 655-658.

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Case History of Soil Improvements of Miscellaneous Fills in Yellow River Delta Alluvium of Shandong

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