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        <title>回弹模量</title>
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        <description>&lt;内容编辑中，暂不可信&gt;

回弹模量 (Resilient Modulus)

	&quot; 摘要：回弹模量是路基路面设计中的核心力学参数，反映了土体在重复荷载作用下，卸荷阶段的弹性变形能力。它是确定路面结构厚度和评估路基刚度的关键指标。</description>
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        <dc:date>2026-01-04T08:56:14+00:00</dc:date>
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        <title>极限侧阻力</title>
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        <description>&lt;https://www.soujianzhu.cn/NormAndRules/NormContent.aspx?id=281&gt;</description>
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        <dc:date>2026-01-04T09:04:26+00:00</dc:date>
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        <title>摩擦角</title>
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        <description>&lt;内容编辑中，暂不可信&gt;

内摩擦角 (Internal Friction Angle)

	&quot; 摘要：内摩擦角（$\phi$）是土体抗剪强度指标之一，反映了土颗粒之间相互滑动时产生的摩擦阻力。它是计算地基承载力、挡土墙土压力及边坡稳定性的关键参数。$\tau_f$$c$$\phi$$\phi$$\phi$$\phi$$\phi$$c$$\phi$$\phi$$M_b, M_d, M_c$$K_a$$K_p$$\phi$$\phi$</description>
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        <title>湿陷性土</title>
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        <description>&lt;编辑中，内容暂不可信&gt;

&lt;http://www.jianbiaoku.com/webarbs/book/246/54861.shtml&gt;

岩土工程勘察规范 [附条文说明] GB50021-2001（2009年版）

6.1.1  本节适用于干旱和半干旱地区除黄土以外的湿陷性碎石土、湿陷性砂土和其他湿陷性土的岩土工程勘察。对湿陷性黄土的勘察应按现行国家标准《湿陷性黄土地区建筑规范》(GB 50025)执行</description>
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        <title>土层类别</title>
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        <title>压缩模量</title>
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压缩模量 (Modulus of Compressibility)

	&quot; 摘要：压缩模量（$E_s$）是土力学中用于评价土体压缩性高低的核心指标。它描述了土体在完全侧限条件下抵抗竖向变形的能力，是建筑地基沉降计算中最常用的参数。$\epsilon_x = \epsilon_y = 0$$E_{s(1-2)}$</description>
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        <title>依据</title>
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        <description>依据

《岩土工程勘察规范》 (GB 50021-2001) 3.3节

&lt;http://www.jianbiaoku.com/webarbs/book/246/54838.shtml&gt;

3.3.1  晚更新世Q3及其以前沉积的土，应定为老沉积土；第四纪全新世中近期沉积的土，应定为新近沉积土。根据地质成因，可划分为残积土、坡积土、洪积土、冲积土、淤积土、冰积土和风积土等。土根据有机质含量分类，应按本规范附录A表A.0.5执行。</description>
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        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>粘聚力</title>
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        <description>&lt;内容编辑中，暂不可信&gt;

粘聚力 (Cohesion)

	&quot; 摘要：粘聚力（$c$），又称内聚力，是土体抗剪强度指标之一。它代表土颗粒之间因物理化学作用产生的相互引力，是粘性土区别于无粘性土（如纯砂）的重要特性。$c \approx 0$$c$$c$$c$$c$$c$$N_c$$c$$c$$\tau - \sigma$$c$</description>
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