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Embedment

About: Embedment is a research topic. Over the lifetime, 2441 publications have been published within this topic receiving 31444 citations.


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Journal ArticleDOI
TL;DR: In this article, the authors considered soil as an elastic half-space or a stratum and proposed an approximate analytical solution to predict the response in any vibration mode including coupled modes.
Abstract: The theory makes it possible to consider soil as an elastic half-space or a stratum. In the latter case, embedment becomes particularly important because the omission of embedment leads to unrealistic overestimation of amplitudes, while the omission of layering can result in considerable underestimation of the response. The approximate analytical solution compares favorably with the finite element solution and can be easily applied in design of footings or structures supported by embedded foundations. A further advantage is that the same approach can be used to predict the response in any vibration mode including coupled modes. The field experiments were conducted with concrete blocks having square and rectangular bases. There was a reasonable agreement between the theoretical and experimental relative variations of the resonant amplitudes and of the resonant frequencies with embedment in the case of the undisturbed soil.

107 citations

Journal ArticleDOI
TL;DR: In this paper, the effect of parameters such as end condition of fiber (smooth or hooked-end), embedment length, water/binder ratio, paste phase of RPC, steel micro fiber, and curing conditions on fiber-matrix pullout behavior were determined.

105 citations

Journal ArticleDOI
TL;DR: In this paper, a new computer-controlled laboratory technique has been developed to measure propped fracture width and embedment in weakly consolidated cores or unconsolidated sands under simulated downhole conditions.
Abstract: A new computer-controlled laboratory technique has been developed to measure propped fracture width and embedment in weakly consolidated cores or unconsolidated sands under simulated down-hole conditions. Previously laboratory studies on cores have determined embedment in hard rocks where embedment is normally limited to 50% of the proppant grain diameter. Several studies also indicated the importance of embedment with one monolayer or less of proppant coverage. The effects of water saturation and fracture fluid filtrate on formation softness and embedment have not been previously published. Consequently, the objectives of the current paper are to extend previous research results to include soft weakly-consolidated cores and unconsolidated sands with multiple proppant layers. The influence of water saturation and dynamic fluid leakoff on embedment are also investigated. The current investigations indicate that embedment becomes a problem when the Brinell hardness of the formation is less than about 20 kg/mm{sup 2} or when the static Young`s modulus of formations cores is less than about 2 million psi (13 GPa). Embedment has been determined for cores with static Young`s moduli between 0.1 and 1.4 million psi (0.7 to 9.6 GPa). In soft and wet sandstone, embedment can reduce fracture width up to 60% or more formore » proppant concentrations of 2 lb/ft{sup 2}. For unconsolidated sands, embedment is influenced by fracturing fluid type, water saturation and down-hole conditions. Cyclic loading conditions associated with well shut-ins also increase embedment in unconsolidated sands. Test data on formation cores from South Texas, New Mexico, the North Sea and the Gulf of Mexico arc reviewed and discussed. Current fracture design programs often neglect embedment problems in calculating fracture width and assume that most formations are hard as steel.« less

104 citations

Journal ArticleDOI
TL;DR: In this article, a simplified analytical method is proposed to predict the shield tunnel behaviors associated with adjacent excavation by introducing the Pasternak foundation model with a modified subgrade modulus.

104 citations

Journal ArticleDOI
TL;DR: In this paper, the authors investigated the effect of fiber embedment lengths, diameters, pretreatment conditions and concrete mix design ratios on the bond strength between single coconut fibre and concrete.

102 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
2023202
2022355
2021160
2020120
2019125
2018139