原状与重塑人工冻结粘土抗压强度特征 #br#
对比试验研究* #br#

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Abstract Comparative testing study is made on uniaxial compressive strength of undisturbed and remolded frozen clay in the same conditions. The test results show that the compressive strength of the undisturbed frozen clay is slightly lower than that of the remolded frozen clay，and the elastic modulus of the former is slightly higher than that of the later. There are significant differences of the failure mode and failure strain between the undisturbed and remolded frozen clay. The undisturbed frozen clay usually takes on typical brittle failure character，and its failure strain is smaller. Whereas，the remolded frozen clay usually takes on typical ductile plastic failure character，and its failure strain is greater. These differences should be taken into account in the design and construction of artificially frozen ground engineerings.

Key words： Key words soil mechanics undisturbed frozen soil remolded frozen soil compressive strength elastic modulus failure strain

Received: 03 March 2003

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https://rockmech.whrsm.ac.cn/EN/ OR https://rockmech.whrsm.ac.cn/EN/Y2003/V22/IS2/2861