Effects of Soil Compaction and Moisture Content on Soil Resistance
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Abstract
Soil resistance was studied in Hang Dong (Hd), San Sai (Sai) and San Patong (Sp) soil series at different levels of soil compaction and moisture content. The soil compaction was indicated by soil bulk density as 1.10, 1.20, 1.30, 1.40 and 1.50 g/cm3 while the moisture content was designed as 25, 50, 75 and 100 percent by weight of available water capacity (AWCa). The pocket penetrometer (CL700) was used for this testing. The results indicated that at any soil compaction levels of these soils, the soil resistance was significance linearly decreased as the soil moisture increased. On the other hand, at any soil moisture content levels, the soil resistance was significantly increased with increasing soil bulk density or soil compaction as exponential function.
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