In this study the vertical swelling pressure in disturbed expansive soil was evaluated under constant-volume hydration swelling tests. The volume change during inundation was observed under two conditions: constant vertical stress at inundation and constant volume. A swelling stress-strain relationship model of compacted expansive soil is established under a one-dimensional axial load, which is related to the properties of the soil and can be used to predict the swelling stress of compacted soil with high density or strain under a specific axial load. This study can help to predict the swelling stress and strain of compacted expansive rock.

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扰动膨胀岩膨胀特性影响因素的试验研究

在这项研究中，在恒定体积的水合作用膨胀试验中评估了扰动膨胀土中的垂直膨胀压力。在两个条件下观察到浸水期间的体积变化：浸水时垂直应力恒定和体积恒定。建立一维轴向载荷下压实膨胀土的膨胀应力-应变关系模型，该模型与土的性质有关，可用于预测特定条件下高密度或高密度压实土的膨胀应力。轴向载荷。这项研究可以帮助预测压实膨胀岩的膨胀应力和应变。