The earth dam foundation at Heilongtan Reservoir in Lunan county, Yunnan province is consisted of silty sand Layer and silty soil with low bearing capacity and poor shear strength.
云南省路南县黑龙潭水库土坝基础属粉细沙层及低液限粉质土，允许承载力低，抗剪强度差，不足以维持坝体稳定。
Based on the connecting strength of soil, the effects of foundation length-width ratio on base additional stress and depth of compressed layer were discussed.
基于土的连结强度，研究基础长宽比对基底附加应力和压缩层深度的影响。
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