• Title/Summary/Keyword: Butting

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Analysis of the Variation of Earth Pressures and Pore Pressures on the Interfaces of Taechong Composite Dam. (대청복합댐 접합면에 대한 토압 및 간극수압의 변동분석)

  • 임희대;김상규
    • Geotechnical Engineering
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    • v.4 no.2
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    • pp.33-44
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    • 1988
  • The Taechong Dam completed in 1980 is a composite dam at which a junction was formed partly by butting the core against the end face of the concrete gravity section and partly by the core overlapping the upstream face of the concrete. In order to evaluate the performance of the junction, the interfaces between the concrete dam and core of the embankment dam were well instrumented with total pressure cells and piezometers. A nonlinear incremental finite element analysis simulating its construction behaviour was carried out under plane strain conditions. Material parameters for the core are determined from triaxial tests on the specimens, sampled in the quarry site and compacted to the field dry density at the field moisture content. Material parameters for the filter, transition materials and the rockfill are estimated from literature. When compared with the earth pressures measured at the interfaces, the analytical results show good agreement in the core, however, there are some discrepancy in the shell. A nonlinear model for pore pressure response is used successfully to predict the pore pressures at the interface in the core.

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Mating and Incidental Activities of Ram (Ovis aries) When Exposed to Ewe(s) and Competitor Ram in Pen Mating Condition

  • Patel, M.;Das, N.;Pandey, H.N.;Yadav, M.C.;Girish, P.S.
    • Asian-Australasian Journal of Animal Sciences
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    • v.18 no.4
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    • pp.463-469
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    • 2005
  • An attempt was made to analyze the factors affecting mating performance of rams in pen mating systems. Due to many types of social interactions, mating performance of rams may decrease or increase. Six intact Muzaffarnagari rams were used and divided into three dominant subordinate pairs by food and ewe competition test. For dominant rams subordinate ram became competitor and vice versa. In the first experiment, ram was exposed to ewe but the competitor ram was kept outside the pen with the facility of visibility only. In the second experiment each ram was exposed to ewe along with the competitor ram and in third experiment ram was exposed to ewes (two) along with competitor ram in observation pen. Recordings of different mating and agonistic behaviour were done in all the experiments. It was found that subordinate ram's mating behaviour was inhibited by mere presence of a dominant ram out side without physical contact. However, when ram exposed to oestrus ewe(s) along with competitor ram, both dominant and subordinate rams spent much of their time in guarding activities instead of mating. In addition dominant ram tried to curtail the subordinate ram mating by agonistic interaction like fight and butting. Different guarding activities were observed either as active or passive type depending on level of dominanace. It was concluded that in a limited space the interaction of two or more rams might affect the number of services adversely.

A Study about The Spin-off Phenomenon of Brand Webtoon Storytelling (브랜드 웹툰 스토리텔링의 스핀오프 양상 연구)