Mixing Pile and Rotary Jet Grouting Pile New Monitoring Technology Research and Application

Abstract

Construction of buildings on soft ground, key issues need to improve the bearing capacity on soft ground. The cement mixing pile and high pressure rotary grouting pile technology are widely applied in road soft foundation consolidation engineering. However, due to the impact of various factors of construction technology, machinery and equipment, geological conditions, such as the quality of the construction team, quality control has great difficulty. This paper presents three indicators - SPT blow count, and core samples described and unconfined compressive strength of cement mixing pile quality evaluation, which SPT blow count based, core sample description, followed by anti-supplemented unconfined compressive strength. According to certain standards of each score, and assign different individual scores are weighted average weights to obtain weighted score of three indicators of the quality.