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首页> 外文期刊>European Journal of Environmental and Civil Engineering >Layered high-performance concrete plates interacting with granular soil under blast loads: an experimental investigation
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Layered high-performance concrete plates interacting with granular soil under blast loads: an experimental investigation

机译：爆炸荷载下层状高性能混凝土板与粒状土相互作用的实验研究

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摘要

A new-layered precast tunnel segment made of different fibre-reinforced cementitious composites is here proposed. The article aims to study the effect of impulsive distributed pressure over tunnel rings under blast loads for the development of this new design solution. Shock tube experiments have been carried out to investigate a small portion of tunnel segment interacting with soil subjected to a plane shock wave. A set of accelerometers mounted on the specimen and placed inside the soil, as well as strain gauges mounted on the ad hoc chamber containing the specimen and the soil, have provided valuable information on the soil-structure interaction response. A careful investigation on the possible delamination between concrete layers is also carried out by UPV measurements. The experimental results have pointed out the great potential of this new design solution for precast tunnel segments subjected to internal explosions.
机译：本文提出了一种由不同的纤维增强水泥基复合材料制成的预制隧道分段。本文旨在研究爆炸荷载下隧道环上的脉冲分布压力的影响，以开发这种新的设计解决方案。进行了激波管实验，以研究隧道段中一小部分与受到平面激波的土壤相互作用的情况。一组安装在样本上并放置在土壤中的加​​速度计，以及安装在包含样本和土壤的特设室中的应变仪，提供了有关土壤-结构相互作用响应的有价值的信息。通过UPV测量还对混凝土层之间可能的分层进行了仔细的研究。实验结果表明，这种新设计解决方案对于遭受内部爆炸的预制隧道路段具有巨大的潜力。

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