This paper analyzes the effects of wetting deformation on earth-rock dams during reservoir filling.
本文主要分析土石坝在初次蓄水时,湿化变形对坝体应力应变的影响。
It is found that the wetting deformation behaviour can be explained from the viewpoint of the wetting grain breakage.
湿化变形的基本规律可以根据湿化颗粒破碎规律加以解释。
Breakage is an important factor to influence wetting deformation of coarse-grained materials; and farther study is necessary.
颗粒破碎是引起粗粒料湿化变形的重要因素,有必要对其进行深入研究。
Based on Duncan e-b model and Increment FEM, wetting deformation of Heihe earth dam during reservoir filling is analyzed in this paper.
采用基于邓肯e—B模型的增量有限元法,对黑河水库初次蓄水时大坝的湿化变形进行了计算分析,并与实际观测结果进行了比较。
It bases on the classical plastic theory, and the components of wetting deformation under complicated stress state may be determined clearly.
该模型依据经典塑性理论,能够明确指定复杂应力状态下湿化变形的各分量。
And the Nanshui model can well simulate the stress and deformation behaviors of core-wall DAMS when the wetting deformation and rheology are considered.
当计入湿化变形和流变变形的影响之后,用南水模型可较好地模拟心墙坝的应力变形性状。
The effect factors for wetting deformation in wetting test, such as time, pause-shear deformation and the deformation steady criterion, are investigated.
对湿化变形试验中影响试验结果的时间、停机变形及变形稳定标准进行了深入研究。
Combined with water content test of the test points in different depths, relationships between water content, seepage depth and wetting deformation are analyzed.
结合不同深度含水率的测试,分析了测试点含水率和渗水深度与湿化变形的相关性。
Besides, the relative controlling parameters for split grouting are put forward so as to make full use of wetting deformation without influencing the stability of dam.
提出灌浆相关控制指标,使在不影响原坝体稳定的前提下,充分发挥湿化变形效果。
Deformation of the specimen without wetting mainly occurs at the initiation stage, while the wetting deformation of the specimen mainly occurs at the acceleration stage.
未湿化试样的变形主要发生在启动阶段,而湿化试样的变形则主要发生在加速阶段。
It is regarded that the wetting deformation is generated by the loss of matrix suction, and a constitutive relationship between lost matric suction and wetting deformation deduced.
认为湿化变形是由基质吸力丧失而产生,由此推导出丧失基质吸力与湿化变形的定量关系。
When using intense weathering soft rock to fill high grade highway embankment, compaction characters and wetting deformation characters are the major indices to estimate the filling performance.
强风化软岩用于高等级公路路基填筑时,压实特性和湿化变形特性是评价填料性能的主要指标。
Hence, as for as the result of its deformation is concerned, collapse loess upon wetting at a state of certain stress is equivalent to that with applied extra load.
因此,单就其变形的后果而言,湿陷性黄土在一定应力状态下的浸水增湿与对黄土施加附加力荷载有等效作用。
And the characteristics of collapse deformation by wetting are also revealed. It is proposed that it is the granule composition of silt-sand that mainly causes the collapse deformation by wetting.
揭示了粉土的湿陷变形特性,提出了粉土成分含量是引起粉土湿陷变形的主要因素。
In General, the deformation of Unsaturated Soils (loess, expansive Soil et al.) is complicated with 4 essential effects as follows: loading, wetting, temperature and creeping.
膨胀性或湿陷性非饱和土一般存在四种变形效应,即力效应、水效应、温度效应和流变效应。
What is more, because wetting effect cannot offset the lifting deformation, the sink of the shell is caused by seepage body force.
湿化作用不足以抵消浮托力对坝壳的上抬影响,坝壳下沉是由心墙渗透体积力引起的。
A new triaxial testing system which could control suction in wetting-induced collapsible tests was successfully developed to study suction effects on wetting-induced collapsible deformation.
为了研究吸力对黄土湿陷变形的影响,研制了一套可以控制吸力的非饱和土湿陷三轴仪。
A new triaxial testing system which could control suction in wetting-induced collapsible tests was successfully developed to study suction effects on wetting-induced collapsible deformation.
为了研究吸力对黄土湿陷变形的影响,研制了一套可以控制吸力的非饱和土湿陷三轴仪。
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