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Pile response subjected to rock blasting induced ground vibration near soil-rock interface

机译:土石界面附近爆破引起桩振动的桩响应

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摘要

Blasting has been widely used in mining and construction industries for rock breaking. Ground vibration induced by blasting is an inevitable side effect that may cause damage to nearby structures, if not properly controlled. In this study, response and possible damage of rock-socketed pile near soil-rock interface subjected to ground shock excitations are investigated and quantified with coupled SPH-FEM method. Results indicate that the base of the pile is relatively vulnerable and that the soil properties significantly influence on response of pile subjected to a specific blast load. Furthermore, based on the numerical results, ground vibration attenuation equation is proposed. (C) 2016 Elsevier Ltd. All rights reserved.
机译:爆破已广泛用于采矿和建筑行业中,用于破碎岩石。爆破引起的地面振动是不可避免的副作用,如果控制不当,可能会损坏附近的建筑物。在这项研究中,研究了地震动激励作用下靠近土石界面的嵌岩桩的响应和可能的破坏,并采用耦合SPH-FEM方法进行了量化。结果表明,桩的基础相对脆弱,并且土壤特性显着影响特定爆炸载荷下桩的响应。此外,根据数值结果,提出了地面振动衰减方程。 (C)2016 Elsevier Ltd.保留所有权利。

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