Dynamic Risk Assessment Index System for Earth-Rock Dam during Construction

During the construction of earth-rock dam,mutual exclusive construction goals such as quality,safety,progress and cost all have influences on each other,with risk factors being everchanging as the construction progresses.Accurate identification of the risk factors,as well as clearing any possible effect that any risk factors might have on the construction project is the key and foundation to our cooperative control of the construction goals.According to the construction planning of earth-rock dam,the hall3 D structure was used to identify the potential changes of risk factors,and the possible means of any risk factors to interfere with the construction goals.The dynamic risk assessment index system is established by deploying the WBS-RBS(work breakdown structurerisk breakdown structure)method,aiming at the construction goals of earth-rock dam.The case study shows that the index system is very effective at risk management of earth-rock dam during construction,and relatively practicable.

泛构式主义思想的语言基础

饱受争议的构式泛化说其实是构式理论发展的必然选择。这是因为一种语言理论要有解释所有语言现象的能力,仅仅说明那些"不能完全预测"的结构体是不够的;同时,这也是语法研究归宿——形式化的必然选择;更重要的是,泛构式主义的主张得到了语言事实的支持。语言事实证明:那些看似简单的似乎用语义就可以说明的结构体远比想象的复杂,而构式理论就是解释这些复杂现象的好的理论武器。