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聚苯乙烯泡沫 (EPS)是一种性能优良的路基轻质填料 ,具有使用寿命长、化学性能稳定、经济效益显著和施工简便等优点 ,已广泛应用于道路、桥梁和涵洞等一系列土木工程中。EPS能很好地解决软基的过渡沉降和差异沉降及桥台和道路连接处的差异沉降 ,减轻高填涵洞上覆土压力及桥台的侧向压力和位移等问题。鉴于我国对 EPS的研究还处于初步阶段 ,本文以室内试验为基础对 EPS的物理化学特性、力学性能及其在工程中的应用做一介绍和分析 ,旨在提高对 EPS的认识为其今后的广泛应用奠定基础
Polystyrene foam (EPS) is a kind of lightweight subgrade with good performance. It has the advantages of long service life, stable chemical performance, significant economic benefits and easy construction. It has been widely used in a series of civil engineering such as roads, bridges and culverts in. EPS can solve the problems of transient subsidence and differential settlement of soft foundation and differential settlement at abutment and road junctions, and alleviate the overburden pressure on culverts and the lateral pressure and displacement of abutments. In view of the EPS research in our country is still in the preliminary stage, this paper based on the laboratory tests on the physical and chemical properties of EPS, mechanical properties and its application in the project to do an introduction and analysis, aimed at raising awareness of EPS for its future Widely used to lay the foundation