The crack of expansive soil does great harm to engineering works. To learn the development of crack of expansive soil,this paper conducted a large number of laboratory tests on Nanyang expansive soil,prepared a variety of remodeling soil samples in different environment for dehumidification,the development of middle-earth kind of fracture was observed during dehumidification process,the effect of uniformity of soil on the development of crack,the temperature sensitivity and size effect of the development of crack were studied. Test results are ...
