岩土工程学报2012，Vol.34Issue(9)：1574-1583,10.
深海能源土微观力学胶结模型及参数研究
Micro-bond contact model and its parameters for the deep-sea methane hydrate bearing soils
摘要
Abstract
Methane hydrate （MH）, which has significant influences on the strength of methane hydrate bearing soils, exits mainly in the form of cement materials between soil particles. Hence, the study of bond mechanical behavior of MH between soil particles is significant to the research of methane hydrate bearing soils, of which the keypoint is the determination of the micro-contact model and corresponding bond parameters of MH. First, a micro-bond contact model is introduced to reflect the contact properties of the soil particles. Second, the strengths and elastic modulus of MH （such as the tensile strength, compressive strength, shear strength and torsion strength） are obtained through the literatures about methane hydrate triaxial tests. Finally, micro bond parameters needed by the contact model are obtained. The results show that the micro bond parameters of gas hydrate are determined by the saturation and strength parameters of gas hydrate, which can be obtained through the temperature, density of hydrate and its burial depth which are easy to be determined.关键词
天然气水合物/能源土/微观胶结模型/模型参数Key words
methane hydrate/methane hydrate bearing soils/micro bond contact model/model parameter分类
建筑与水利引用本文复制引用
蒋明镜,肖俞,朱方园..深海能源土微观力学胶结模型及参数研究[J].岩土工程学报,2012,34(9):1574-1583,10.基金项目
国家杰出青年基金项目 （）
教育部博士点基金项目 （）
国家自然科学基金项目 （）
