粒間極限剪應力值之假設

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Title:	粒間極限剪應力值之假設
Authors:	吳淵洵 Wu, Jason Y.
Contributors:	土木工程學系 Civil Engineering
Keywords:	粒間極限剪應力;疊加原理;相同剪應力事件;量尺;標準 Interparticle Utimate Shear Stress;Superposition Principle;Identical Shear Stress Event;Measured Scale.
Date:	2009
Issue Date:	2014-06-26 20:12:42 (UTC+8)
Abstract:	摩爾-庫倫準則之剪力強度公式中的「＋」一直是隱含的假設。此數學式表達：土體的剪力面，同時存在依粒間凝聚力產生之剪應力(c)及依摩擦力產生之剪應力(  tan)，可疊加成一個極限剪應力值(f)。但摩爾-庫倫準則中兩種剪應力可以疊加的假設，自1776年迄今的文獻尚未驗證，經過200多年的應用，在目前大地工程設計的位階，實際等同於公設。本文認為兩種剪應力若符合疊加原理，必須先以物理學「相同剪應力事件」的量尺做為標準，依兩種剪應力發生的時間與空間，研判是否為相同的剪應力事件。本文中以量測兩種剪應力事件發生的 In conventional soil mechanics, Coulomb’s equation defined that the ultimate shear strength (f) of a soil consists of intrinsic cohesion (c) and frictional resistance ( tan). However, such theory was based on an assumption that the intrinsic cohesion a
Appears in Collections:	[Department of Civil Engineering] Seminar Papers

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