摘要：1我国单板层积材相关理论研究现状单板层积材简称LVL，是由可利用速生材、小径级及短小材为原料旋切成单板，并以相同的纹理方向层积热压又经过拼接胶压而成的一种具有工程性能均匀、稳定、强度高、规格尺寸灵活多变，生产和应用可以实现标准化、系列化的优质高性能产品。

摘要：随着城市化进程的推进,建筑业大发展的同时,建筑垃圾也急剧增加,建筑垃圾资源化是当前重要的研究课题,另一方面,公路建设过程中,需要大量的碎石,而当前石料短缺。本文以建筑垃圾路用可行性研究为切入点,介绍散体材料桩复合地基的分类,并介绍其加固松砂和软基的机理,最后介绍建筑垃圾用于路基处理的施工工艺,为建筑垃圾再生材料在路基的应用提供经验。

摘要：Performance-Based Design (PBD) is a more rational approach, particularly in seismic environments. In this approach it is relevant the performance required to structures and to geotechnical works, as well as the geotechnical constitutive models used to predict the performance. The parameters of the constitutive models are related in turn to soil properties. So soil properties are a key point for Performance-Based Design. Questions arising are: (i) which are the more relevant soil properties to solve a specific PBD geotechnical problem? (ii) which are the more relevant model parameters and how they can be evaluated and/or correlated to soil properties? (iii) which is the role of the soil parameters uncertainty in Performance-Based Design? An answer to these questions is given in this paper, outlining the potential offered by the new advanced in-situ and laboratory tests and discussing the performance required by some geotechnical works.