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Why Does the Repaired Len Small Levee, Alexander County, Illinois, US Continue to Breach during Majo
[期刊论文] 作者：Olson,David R. Spei,
来源：土壤科学期刊(英文) 年份：2020
One only needs to study the soil and geologic history and location of the ancient Mississippi and Ohio Rivers to understand why Len Small levee if patched will...
[期刊论文] 作者：Olson,David R. Spei,
来源：土壤科学期刊(英文) 年份：2020
For more than 2500 years, soil tunnels have been used in warfare and smuggling. Initially tunnels were utilized to attack fortresses that were underlain by unco...
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