1results about How to "Improve soil properties" patented technology

The utility model belongs to municipal engineering technical field, concretely relates to a kind of shallow soft soil subgrade treatment combination structure in narrow site, comprising: replacement boundary line, roadbed replacement base layer, replacement demarcation line, ground line, excavation replacement slope line, cement soil mixing pile solid pile, cement soil mixing pile empty pile, cement solidification area and replacement granular material.Excavation replacement slope line starts from replacement demarcation line, and ends in replacement boundary line;Cement soil mixing pile solid pile is located below the area inside replacement boundary line road, its pile bottom is below replacement demarcation line, and pile top is cut off in excavation replacement slope line;Cement soil mixing pile empty pile is only as the "virtual section" that cement soil mixing pile solid pile body extends upwards;Cement solidification area is the area that replacement boundary line, cement soil mixing pile solid pile bottom and excavation replacement slope line, ground line are enclosed to form.The utility model can reduce the range of slope excavation, reduce the influence of excavation replacement subgrade treatment to surrounding environment and building structures.