Influence of Backfill Soil Saturation on the Structural Response of Buried Pipes

Cement and Fly Ash-Treated Recycled Aggregate Blends for Backfilling Trenches in Trafficable Areas

“…Several studies such as Fang et al [24], Alzabeebee [9], and Qin and Moore [54] investigated the impact of traffic load and backfill characteristics, including erosion, compaction, and degree of saturation on the deterioration of buried sewage pipelines. In these studies, natural aggregates were supplied to backfill trenches excavated at depths less than 1.5 m. A persistent and growing need for natural aggregates in urban and developing regions has resulted in a greater demand for such resources.…”

Numerical Modelling of Underground Water Pipelines exposed to Seismic Loading

“…Many experts have worked hard over four decades to imagine the reaction of underground flexible pipes subjected to various stress circumstances. Forces of compaction [9], supporting of pipe haunch [10][11], height of backfill [11][12][13][14][15], loads of traffic [10,[16][17][18][19][20][21], erosion voids [22,23], nearby excavation [24], and soil saturation [25] all had an impact on the behaviour of underground flexible pipes as a result of these intensive efforts. This in-depth knowledge of the behaviour of underground flexible pipes helped engineers in providing better understanding about how the plastic pipes can be broken by various loading conditions, allowing for better designs of these critical lifeline assets.…”