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目前,由于石灰土易于取材,投资成本较低,且自身的优良结构强度及水稳定性特点,使石灰土结构广泛用于干线公路的底基层和农村公路的基层,取得了较好的投资价值,并形成了一定较为详细的施工和质量控制的方法。但是由于诸多因素,个别项目和局部路段石灰土基层在投入使用后,达不到使用年限的要求,给国家投资造成了极大的经济损失。作者根据近年来在石灰土基层施工中掌握的一些质量控制方法,就石灰土结构层的施工工艺和质量控制加以简单阐述。
At present, because limestone is easy to draw, investment cost is low, and its own excellent structural strength and water stability characteristics, the lime-soil structure is widely used in the grassroots of the base and rural road of trunk highway, and has achieved good investment value , And formed a more detailed method of construction and quality control. However, due to many factors, the individual projects and the local sections of limestone and grassroots after their use have reached the end of their useful life, which has caused great economic losses to the state investment. Based on some quality control methods mastered in limestone grassroots construction in recent years, the author briefly describes the construction technology and quality control of lime-soil structure layer.