PENGARUH VARIASI JARAK DAN PANJANGDEEP SOIL MIXING (DSM) 10% KAPURDIAMETER 4 CM BERPOLATRIANGULARTERHADAP DAYA DUKUNG TANAH EKSPANSIF DI BOJONEGORO (The Effect of Distance and Length Variation of 10%Lime Deep Soil Mixing (DSM) Using 4 cm Diameter with Tri (Jurusan Teknik Sipil, Fakultas Teknik, Universitas Brawijaya, 2016)