强风化泥灰岩填料试验研究

An Exploration into the Use of Seriously-weathered Marl as Fill

泥灰岩很容易降解,作为填方材料存在一定的风险,需要充分掌握其工程特性。针对国外某条高速公路实际情况,研究泥灰岩的工程力学特性和作为填料的可行性,通过室内外试验,研究材料的压实性能,确定施工工艺和施工参数,为设计和施工提供充分的依据。

Being very liable to degradate, marl is somewhat risky if used as fill. Therefore, it is necessary for us to have a good command of its engineering properties. With a certain expressway abroad as a practical example, a study is made of the engineering properties of, and the feasibility of the use of marl as fill by means of both lab and on-the-site tests in the paper, with the compacting performance of the material studied, and the corresponding construction techniques and parameters determined, which lays a good foundation for design and construction.