Analysis Of Laboratory Test On Rheology Behavior Of Soil Cement

As a new type of construction material with appropriate behavior and economy, soil cement is widely applied in many engineering field, such as water conservancy, communications and civil engineering. Because long-term mechanics behavior of soil cement construction is directly affected by its rheology behavior, the rheology theory will provide more dependable and reasonable safety guarantee to soil cement construction when it is applied in design of structure. Analysis of rheology behavior of soil cement test is the main work of this dissertation.Firstly, according to the unconfmed compression tests on the latertie cement and the sand soil cement with different cement ratio and different curing time, and studying on rules of the unconfmed compression and modulus , and summarizing of the characteristic of stress-strain diagram of soil cement, this dissertation analyzes the influence of cement ratio and curing time and characteristic of soil on unconfmed compressive strength, and study the mechanics behaviors of sand soil cement on the condition of soaking or dryness. The tests provide some data to the application of this two kind of soil cement.Secondly, based on the data provided by the previous test, a great deal of tests, on behaviors of rheology of sand soil cement, have been done. Through analysis of result of rheology test, an appropriate viscoelastic constitutive model has been found to fit the curve of stress-strain.Lastly, this rheology constitutive model is applied in the finite element analysis of settlement of rock-socketed friction cement mixing pile. Based on the Comparison of results of settlement of soil cementmixing pile computed by elastic theory and rheology theory respectively, some suggestions about practice has been provided...