岩土力学2013，Vol.34Issue(3)：881-886,6.
滚石冲击荷载下棚洞钢筋混凝土板动力响应研究
Study of dynamic response of shed reinforced concrete slab to impact load of rock-fall
摘要
Abstract
In western region of China, there are numerous alpine valleys. The special topography develops a large numbers of mountain disasters of rock-fall. It badly threatens the safety of people. Generally, the shed is the most effective engineering method. However, the impact behavior of rock shed is a complicated dynamic process, especially in the aspect of contact response between slab and rock-fall. The application of rock-fall shed is seriously restricted because of the current research status. In view of the present disadvantages of Herzt contact law, a theoretical method of dynamic response of reinforced concrete (RC) slab is proposed based on the numerical indentation test and the Olsson's model. Compared to the presented methods, the results obtained in this paper are much closer to the results of finite element method. Meanwhile, the impact forces obtained by Herzt model are larger because of without considering of plastic deformation. As a much reasonable method, it can be used to analyze the dynamic response of RC slabs subjected to impact load of rock-fall. At the same time, it also provides an effective numerical analysis method for the application of indentation test to civil engineering.关键词
滚石/棚洞RC板/压痕试验/冲击响应Key words
rock-fall/ shed RC slab/ indentation test/ impact response分类
天文与地球科学引用本文复制引用
王东坡,何思明,欧阳朝军,张晓曦,向波,王晓峰..滚石冲击荷载下棚洞钢筋混凝土板动力响应研究[J].岩土力学,2013,34(3):881-886,6.基金项目
国家自然科学基金(No.41272346) （No.41272346）
国家自然科学基金重点项目(No.40830742) （No.40830742）
科技部支撑项目(No.2011BAK12B03). （No.2011BAK12B03）
