土层是经历多次构造运动,充满着各种孔隙结构的地质体,是由土颗粒、水和空气组成的三相体。土层中胶结物质和矿物成分决定着土的工程特征,土的颗粒组成和含水量将直接关系到土的物理力学性能;而在各种自然营力的作用下,物理力学性能也会发生很大变化。所有这些都将和土层上的工程建筑物发生密切联系。为确保建筑物的正常使用,必须对某些土层采取各种有效措施使其满足工程要求。强夯、排水、预压挤密和灌浆等方法都是经常采用的有效措施。而灌浆法则有其独特优点,特 The soil layer is a geological body that undergoes many tectonic movements and is filled with various pore structures. It is a three-phase body composed of soil particles, water and air. Soil cementing material and mineral composition determine the engineering characteristics of soil, soil particle composition and water content will be directly related to the physical and mechanical properties of soil; and in a variety of natural power under the action of physical and mechanical properties will occur very Big change. All of this will be closely linked to the engineering buildings on the soil. In order to ensure the normal use of the building, some effective measures must be taken on certain soil layers to meet the project requirements. Dynamic compaction, drainage, preloading compaction and grouting and other methods are often used effective measures. The law of grouting has its own unique advantages, especially