Research on the Application of Air Bubble Mixed Light Soil in Pipeline Backfill
In the renovation project of old road network with smooth road traffic and limited working face width,it is difficult to ensure the quality of pipeline backfilling.Research has found that the application of bubble mixed lightweight soil in pipeline backfilling can meet the re-quirements of not affecting quality,convenient construction,and similar cost in a restricted working environment.Research has shown that the key points for quality control in the application of bubble mixed lightweight soil are:foaming agent,adaptability of foaming agent and raw mate-rials,equipment selection,mix design,pouring process control,and curing.
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