Question

how explosive compaction different from other type of compaction​

Answer 1

Answer:

Depending on the importance and load level of a structure, ground improvement may be a viable alternative to expensive foundations in conditions involving weak and problematic soil deposits. The common options for improvement of weak soil layers at depth are as follows: vibro methods, Deep Soil Mixing (DSM), Deep Dynamic Compaction (DDC), jet grouting, and Explosive Compaction (EC). Modification of loose, saturated deposits at depth using methods such as Deep Soil Mixing and jet grouting is costly. Dynamic compaction involves dropping of heavy weights to improve soil and is effective to a depth of 15 m, although its efficiency decreases with decreasing soil permeability. Shakeran and Eslami [1] reported that the use of vibrators, for improvement of loose granular soils at depth, have three disadvantages: (a) they require special equipment, (b) their efficiency decreases with increasing silt and clay content, and (c) their application is limited to maximum depth of 30 m.