DJM工法,是日本建设省土木研究所和日本建设机械化协会新近开发的一种深层地基混合加固法。该工法较压浆施工法具有许多特长和优点,它无需将水泥及其掺合材预先加工成液浆状,而是利用压缩空气直接将粉状的水泥、石灰等加固材料压送到地基之中,与原位土进行搅拌混合,使之和原位土发生强制性化学反应,以达到加固地基的目的。一、工法的原理 DJM工法,是向软弱地基中压送粉粒体改良材料,与原位土进行搅拌混合,使之和原位土发生强制的化学反应来稳定土质,从而达到提高地基强度的一种工法。向软弱地基中添加水泥,可将土中的水份吸收 The DJM construction method is a deep ground mixing and reinforcement method newly developed by the Japan Civil Engineering Research Institute and Japan Construction Mechanization Association. The engineering method has many advantages and advantages over the grouting method. It does not require the cement and its admixture to be pre-processed into a slurry, but uses compressed air to directly transfer the powdered cement, lime, and other reinforcement materials to the foundation. In the process, the mixture is mixed with the in-situ soil to make a forced chemical reaction with the in-situ soil so as to achieve the purpose of reinforcing the foundation. First, the construction method principle DJM engineering method, is to send the powdery granular improvement material to the weak foundation, and the in-situ soil is stirred and mixed to make the chemical reaction with the in-situ soil to stabilize the soil, so as to improve the strength of the foundation. A construction method. Adding cement to soft ground can absorb water in soil