Section 2 Mechanics natures of soil a Soil coherence The natures of soil coherence Van der Waals force, hydrogen bond coulombian force. and water membrane surface tension. 230B 词20 Affect the factors of soi coherence a 一-+.4 水分(%) 1 Soil specific surface and its affect the factors 图126土壤水分含量与粘结力的关系 曲线C的粘结力单位为:克英寸 2 Soil moisture content (1英寸=2.54cm)Section 2 Mechanics natures of soil 一、Soil coherence The natures of soil coherence: Van der Waals force, hydrogen bond, coulombian force, and water membrane surface tension. Affect the factors of soil coherence ： 1、Soil specific surface and its affect the factors 2、Soil moisture content