目的为探究原位状态下海涂围垦区土壤强度特性与其孔隙特征之间的关系。方法以江苏省沿海滩涂不同围垦区土壤为研究对象,通过现场十字板剪切试验和CT扫描技术分析土壤结构与土壤原位抗剪强度(Cu)和灵敏度(St)之间的关系。结果滨海(BH)和如东(RD)处St为1.3~5.4,属于中敏感(2~4)至敏感(4~8)范围,但其扰动土的St在不同深度和围垦年限下无明显变化。相比之下,东台(DT)地区扰动土的St差异显著,其各土层深度的St值均高于BH和RD,其中DT1处St最高,BH3处最低。土壤力学性质分析表明 ...
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