Method for evaluating sensitivity of structural soil body
The invention discloses a method for evaluating the sensitivity of a structural soil body. The method comprises the following steps: acquiring a cohesive soil sample; preparing test soil samples including an undisturbed sample and a remolded sample; carrying out pretreatment on the soil sample by ad...
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Sprache: | chi ; eng |
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Zusammenfassung: | The invention discloses a method for evaluating the sensitivity of a structural soil body. The method comprises the following steps: acquiring a cohesive soil sample; preparing test soil samples including an undisturbed sample and a remolded sample; carrying out pretreatment on the soil sample by adopting K0 consolidation; performing unconfined compressive strength test (UCT) on the pretreated soil sample; a stress-strain curve is drawn, and for an undisturbed sample, the stress peak value with the strain smaller than or equal to 15% is taken as the unconfined compressive strength qu. For a remolded sample, taking the corresponding axial stress when the axial strain reaches 15% as the unconfined compressive strength qur; and defining the ratio of qu to qur as sensitivity. The UCT test curve type of the soil sample which is not subjected to the K0 consolidation treatment can be used for judging the quality of the soil sample, and the sensitivity of the I-type quality soil sample which is not subjected to the K |
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