钙质砂地基中桶形基础水平动载响应实验研究
EXPERIMENTAL STUDY ON BUCKET FOUNDATIONS' RESPONSES IN CALCAREOUS SAND UNDER DYNAMIC LOAD
查看参考文献20篇
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文摘
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针对钙质砂地基中桶形基础动态响应问题进行了实验研究.首先进行了水平静极限承载力实验,获得了水平载荷位移曲线,并为确定水平动载荷幅值的选择提供参考;然后针对主要因素,包括桶形基础尺寸、载荷幅值和频率、土体密度、压重等,进行了系列的室内小模型实验,并对结果进行了分析,获得了水平动载下桶形基础在钙质砂地基中的响应特点.结果表明:载荷幅值、频率、土体密度、桶形基础尺寸对动态响应有明显影响;动载下桶形基础周围钙质砂中孔压上升,但是较其他类砂土中的慢;在结构重量小时,桶形基础上升;有上覆较硬粘土层时,桶形基础和地基的响应减弱. |
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其他语种文摘
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This paper performs experimental study on responses of the bucket foundations in calcareous sand layers under dynamic loading.Experiments to determine the horizontal static bearing capacity are carried out first.The obtained static loading-displacement curves can be referred to for determining the amplitudes of dynamic loads.Then a series of experiments are conducted to study the influences of some factors including the size of bucket,the amplitude and frequency of load,the density of soils,pressing load etc..Analyzing experimental results,the responses' characteristics of bucket foundations in calcareous sand under horizontal dynamic loads are obtained.It is shown that 1)the amplitude and frequency of loading,the soil density and the size of bucket foundation influences the dynamic responses of the bucket foundation obviously;2)the pore pressure increases under dynamic loading,but the rate is smaller than that in other type of sand;3)the bucket foundation would rise if the structure's weight is small;4)the dynamic responses of the bucket foundation and the soil layer decreases with an overlayer of stiff clay covering. |
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来源
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工程力学
,2010,27(2):193-203 【核心库】
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关键词
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钙质砂
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桶形基础
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水平动载荷
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承载力
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动态响应
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地址
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1.
中国科学院力学研究所, 北京, 100190
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中海石油研究中心, 北京, 100027
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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1000-4750 |
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学科
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建筑科学 |
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基金
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国家973计划
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中科院、中海油联合重大项
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文献收藏号
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CSCD:3839997
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参考文献 共
20
共1页
|
|
1.
鲁晓兵. 海洋平台吸力式基础的研究与进展.
力学进展,2003,33(1):27-40
|
被引
17
次
|
|
|
|
|
2.
孙吉主. 内孔隙与各向异性对钙质砂液化特性的影响.
岩土力学,2002,23(2):166-169
|
被引
17
次
|
|
|
|
|
3.
鲁晓兵. 水平动载下桶形基础周围土体软化的离心机模拟.
中国海洋平台,2004,19(6):7-11
|
被引
4
次
|
|
|
|
|
4.
施晓春. 水平荷载作用下桶形基础性状的数值分析.
中国公路学报,2002,15(4):49-52
|
被引
9
次
|
|
|
|
|
5.
孙大鹏. 滩海平台桶形基础承载力试验研究.
石油工程建设,1999,2:12-20
|
被引
1
次
|
|
|
|
|
6.
李向东. 软土地基中单桶基础承载力的模型试验研究.
勘察科学基础,2007,3:3-6
|
被引
1
次
|
|
|
|
|
7.
李驰. 软土地基单桶基础循环承载力研究.
岩土工程学报,2005,27(9):1040-1044
|
被引
14
次
|
|
|
|
|
8.
Wang Yihua. The responses of the bucket foundation under horizontal dynamic loading.
Ocean Engineering,2006,33:964-973
|
被引
8
次
|
|
|
|
|
9.
Randolph M F. Performance of suction anchors in Rue-grained calcareous soil.
OTC8831,1998:521-529
|
被引
1
次
|
|
|
|
|
10.
Dyson G J. Monotonic lateral loading of piles in calcareous sand.
JOURNAL OF GEOTECHNICAL AND GEOENVIRONMENTAL ENGINEERING,2001,127(4):346-352
|
被引
16
次
|
|
|
|
|
11.
Riadh H Al-douri. Predicted and observerd cyclic performance of pilesin calcareous sand.
Journal of Geoteehnical Engineering,1995,121(1):1-16
|
被引
14
次
|
|
|
|
|
12.
Riadla H Al-douri. Static and direct shear tests on carbonate sands.
GEOTECHNICAL TESTING JOURNAL,1992,19(2):138-155
|
被引
8
次
|
|
|
|
|
13.
Jhin T Chin. Tests on model jacked piles in calcareous sand.
GEOTECHNICAL TESTING JOURNAL,1996,19(2):164-179
|
被引
1
次
|
|
|
|
|
14.
Waston P G. Vertical capacity of caisson foundations in calcareous sediments.
Proceedings of the seventh(1997)International Offshore and Polar Engineering Conference,1997:784-790
|
被引
2
次
|
|
|
|
|
15.
Coop M R. The influence of the in situ state of sands on the load-deflection behaviour of driven piles.
GEOTECHNIQUE,2005,55(10):721-730
|
被引
1
次
|
|
|
|
|
16.
Cassidy M J. Numerical modeling of circular footings subjected to monotonic inclined loading on uncemented and cemented calcareous sands.
JOURNAL OF GEOTECHNICAL AND GEOENVIRONMENTAL ENGINEERING,ASCE,2005,131(1):52-63
|
被引
2
次
|
|
|
|
|
17.
Cassidy M J. Modeling the behaviour of circular footings under combinad loading on loose carbonate sand.
GEOTECHNIQUE,2002,52(10):705-712
|
被引
5
次
|
|
|
|
|
18.
初晓锋. 钙质砂中锚定物锚固性能的试验研究.
岩土力学,2002,2(3):368-371
|
被引
5
次
|
|
|
|
|
19.
单华刚. 钙质砂中的桩基工程研究进展述评.
岩土力学,2000,21(3):299-304
|
被引
17
次
|
|
|
|
|
20.
虞海珍. 波浪荷载下钙质砂孔压增长特性的试验研究.
武汉理工大学学报,2006,28(11):86-89
|
被引
13
次
|
|
|
|
|
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