Marine geotechnology—state of the art
Marine geotechnology—state of the art
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海洋地质技术——最先进的技术
DOI：
10.1080/10641197709379770
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发表时间：
1977
期刊：
影响因子：
--
通讯作者：
D. Sangrey
中科院分区：
文献类型：
--
作者：
D. Sangrey
摘要：海洋岩土技术的现状最好是参照陆地土壤的已知情况来定义的。这两种知识状态之间的差异是海洋环境的重大问题。本文讨论的主要问题包括：(a)土壤取样，这涉及到比在陆地上可接受的更严重的干扰。干扰是由几个独特的海洋因素造成的，包括总应力释放和钻井泥浆超压，(b)沉降速度快、气体、自流压力源泄漏或循环加载造成的固结不足或原位孔隙压力过大。(c)沉积物中的气体，可引起原位孔隙压力的增加，妨碍地下调查，是样品扰动的主要原因。(d)就地测量的困难和必要性。(e)动力荷载作用占主导地位，可引起土壤行为的重大变化。两者的主要区别是……
Abstract The state of the art in marine geotechnology can best be defined with reference to what is known about soils on land. Differences between these two states of knowledge are the significant problems for the marine environment. Among the major problems addressed in this paper are (a) Sampling of soils, which involves much more serious disturbance than is considered acceptable on land. Disturbance results from several uniquely marine factors including total stress release and drilling mud overpressure, (b) Underconsolidation, or excess in situ pore pressure, caused by rapid rates of sedimentation, gas, leaks from an artesian pressure source, or cyclic loading. (c) Gas in sediments, which can cause an increase in the in situ pore pressure, hinders subsurface investigation, and is a major cause of sample disturbance. (d) The difficulty and necessity of in situ measurements. (e) The predominance of dynamic loading effects which can cause significant changes in soil behavior. A major difference between g...