Stability of artificial subaqueous slopes in sandy soils
Stability of artificial subaqueous slopes in sandy soils
批准号:
255415996
负责人:
Professor Dr.-Ing. Jürgen Grabe
金额:
$0.0万
依托单位国家:
德国
项目类别:
Research Grants
财政年份:
2014
资助国家:
德国
项目状态:
已结题
起止时间:
2013-12-31 至 2017-12-31
中文摘要
在近海条件下建造人工海底深坑时,应考虑由于水动力作用(如水流、波浪、地震等)造成的长期倾斜小于岸上倾斜。我们的研究项目集中在非粘性土中海底边坡几何形状的变化(侵蚀、淤积、裂隙破坏、液化破坏),表面波引起的超孔压导致有效应力降低,而对于海底边坡,边坡几何形状的变化取决于土体的波长L、波高H、水深h和渗透率k。在前期工作中,我们基于线性波动理论和线性拟静力固结理论的耦合对这一过程进行了研究。借助于数值模拟,我们求解了相应的方程,同时也考虑了材料的非线性固结。在研究项目的范围内,将对实验和理论研究进行验证。因此,将在模型航道中进行在H、L、h和k变化情况下的模型试验。采用两种不同的离散方法,即包括CEL算法的有限元方法和SPH方法来模拟海底斜坡上发生的重排过程。在选定的北海地点,将基于经过验证的数值模型来模拟用于海上风电场基础的典型海底斜坡的建造。
英文摘要
During the construction of artificial submarine pits under offshore conditions it should be considered that the long-term slope-inclination is less than onshore due to hydrodynamic actions (e. g. flow, waves, earthquakes). Our research project is focused on changes of geometry of submarine slopes in non-cohesive soils (erosion, sedimentation, breach failure, liquefaction failure) due to surface waves which cause excess pore water pressures leading to a reduction of effective stresses and in case of submarine slopes to changes of slope geometry depending on wave length L, wave height H, water depth h and permeability k of soil. During our preliminary work we investigated such processes based on the coupling of linear wave theory and linear quasi-static consolidation theory. With the help of numerical modelling we solved corresponding equations considering also materially nonlinear consolidation. Within the scope of the research project the experimental and theoretical investigations will be validated. Therefore model tests in a model channel will be carried out under variation of H, L, h, and k. Occurring rearrangement processes in the submarine slopes will be simulated using two different discretization methods, namely FEM including a CEL algorithm, as well as SPH. The construction of a typical submarine slope for foundation of an offshore wind park at a chosen North Sea site will be simulated based on validated numerical models.
期刊论文(2)
专著(0)
科研奖励(0)
会议论文
DOI:
10.1115/omae2015-41827
发表时间:
2015-05
期刊:
影响因子:
--
作者:
[Julian Bubel;Marc-André Pick;J. Grabe]
通讯作者:
Julian Bubel;Marc-André Pick;J. Grabe
Investigation of gas migration as a triggering mechanism for submarine landslides on continental slopes (TRISCO)
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批准号:401025920
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项目类别:Research Grants
-
资助金额:$0.0万
-
财政年份:2018
-
负责人:Professor Dr.-Ing. Jürgen Grabe
-
依托单位:
Nonlinear wave propagation due to impulse-like actions in saturated, partially drained soil
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批准号:313605443
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项目类别:Research Grants
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资助金额:$0.0万
-
财政年份:2016
-
负责人:Professor Dr.-Ing. Jürgen Grabe
-
依托单位:
Installation of marine structures by suction - hydro-mechanical coupled numerical modelling
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批准号:289128395
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项目类别:Research Grants
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资助金额:$0.0万
-
财政年份:2016
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负责人:Professor Dr.-Ing. Jürgen Grabe
-
依托单位:
Influence of uncertain soil models on the construction and design of geotechnical structures
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批准号:311889072
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项目类别:Priority Programmes
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资助金额:$0.0万
-
财政年份:2016
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负责人:Professor Dr.-Ing. Jürgen Grabe
-
依托单位:
Hydro-mechanical interaction in permeable pavement constructions under consideration of unsaturated states
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批准号:285972906
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项目类别:Research Grants
-
资助金额:$0.0万
-
财政年份:2016
-
负责人:Professor Dr.-Ing. Jürgen Grabe
-
依托单位:
Multiscale modelling of physical processes along water-soil interface
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批准号:274844490
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项目类别:Research Grants
-
资助金额:$0.0万
-
财政年份:2015
-
负责人:Professor Dr.-Ing. Jürgen Grabe
-
依托单位:
Investigation of installation caused interlocking failure of combined steel sheet piles
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批准号:249022811
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项目类别:Research Grants
-
资助金额:$0.0万
-
财政年份:2014
-
负责人:Professor Dr.-Ing. Jürgen Grabe
-
依托单位:
Hydraulic dissolution of soil
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批准号:260695819
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项目类别:Research Grants
-
资助金额:$0.0万
-
财政年份:2014
-
负责人:Professor Dr.-Ing. Jürgen Grabe
-
依托单位:
Investigations on the drift of piles subjected to cyclic lateral loading with a changing loading direction and on the reduction of the drift
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批准号:163167571
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项目类别:Research Grants
-
资助金额:$0.0万
-
财政年份:2010
-
负责人:Professor Dr.-Ing. Jürgen Grabe
-
依托单位:
Influence of capillarity on the mechanical behaviour of non-cohesive soils under dynamically loaded logistic areas
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批准号:162924550
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项目类别:Research Grants
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资助金额:$0.0万
-
财政年份:2010
-
负责人:Professor Dr.-Ing. Jürgen Grabe
-
依托单位:
Finite-Element based multicriteria numerical optimization of geotechnical constructions at service limit state
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批准号:114502996
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项目类别:Research Grants
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资助金额:$0.0万
-
财政年份:2009
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负责人:Professor Dr.-Ing. Jürgen Grabe
-
依托单位:
Einfluss von Aufweitungen auf überwiegend horizontal beanspruchte Pfähle
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批准号:28218255
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项目类别:Research Grants
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资助金额:$0.0万
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财政年份:2006
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负责人:Professor Dr.-Ing. Jürgen Grabe
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依托单位:
Zeitabhängiges Tragverhalten von Verdrängungspfählen
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批准号:5441965
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项目类别:Research Grants
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资助金额:$0.0万
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财政年份:2005
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负责人:Professor Dr.-Ing. Jürgen Grabe
-
依托单位:
Grundsatzversuche zum Düsenstrahlverfahren
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批准号:5308678
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项目类别:Research Grants
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资助金额:$0.0万
-
财政年份:2001
-
负责人:Professor Dr.-Ing. Jürgen Grabe
-
依托单位:
Holistic approach for the design of single piles and pile groups under cyclic loading
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批准号:409759834
-
项目类别:Research Grants
-
资助金额:$0.0万
-
财政年份:--
-
负责人:Professor Dr.-Ing. Jürgen Grabe
-
依托单位:
Numerical modelling of water jet induced erosion in saturated sand
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批准号:452794591
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项目类别:Research Grants
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资助金额:$0.0万
-
财政年份:--
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负责人:Professor Dr.-Ing. Jürgen Grabe
-
依托单位:
Experimental investigation of capillary collapse of partially saturated granular soils during saturation
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批准号:516409567
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项目类别:Research Grants
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资助金额:$0.0万
-
财政年份:--
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负责人:Professor Dr.-Ing. Jürgen Grabe
-
依托单位:
On the loss of contact between driving element and soil during vibratory driving into saturated soil
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批准号:469320296
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项目类别:Research Grants
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资助金额:$0.0万
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财政年份:--
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负责人:Professor Dr.-Ing. Jürgen Grabe
-
依托单位:
Closed-loop control of a nonlinear vibrator-profile system penetrating a heterogeneous ground
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批准号:471875774
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项目类别:Research Grants
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资助金额:$0.0万
-
财政年份:--
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负责人:Professor Dr.-Ing. Jürgen Grabe
-
依托单位:
Load-bearing behavior and interaction of rigid inclusion systems with granular load transfer platforms
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批准号:507066518
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项目类别:Research Grants
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资助金额:$0.0万
-
财政年份:--
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负责人:Professor Dr.-Ing. Jürgen Grabe
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依托单位:
国内基金
海外基金
利用人工microRNA技术改良水稻抗虫性的应用及其分子机理的研究
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批准号:31000742
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项目类别:青年科学基金项目
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资助金额:18.0万元
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批准年份:2010
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负责人:陈浩
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依托单位:
中国棉铃虫核多角体病毒基因组库和分子进化
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批准号:30540076
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项目类别:专项基金项目
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资助金额:8.0万元
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批准年份:2005
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负责人:王汉中
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依托单位: