[Tianjin-strong high-pressure pump Co., Ltd. to recommend the star product] single pipe high pressure rotary jet pile construction program and background materials (cement) arrangement (1) Background (preparation of the corresponding machine number) and cement piled station should avoid the pile-bit range, Hengshui foundation treatment rig, does not affect traffic. (2) background and cement piled station should be connected together, and the erection of protective equipment. (3) Cement station should be higher than the natural ground 30cm, and 50cm of digging ditches in the periphery. (4) because of the materials used cement dust is large, should be stacked away from the rural areas, living areas, residential areas and public places, there is a certain distance, surrounded by canvas enclosed. Due to its high pressure spraying pile construction equipment is simple, convenient, fast, less environmental pollution and low prices, it has a very good application and development prospects in construction projects. But our high pressure jet grouting technique is not long, foundation processing rig prices, lack of practical experience, technical data are not comprehensive, ground handling rig models, plus imperfect normative standards, thus there are more accidents and quality construction material waste serious phenomenon. But our project on high pressure rotary jet grouting pile For over 20 years, the quality of the pile acceptance testing process also accumulated a lot of testing data, according to statistics computational scientific approach can objectively reflect the high pressure spraying pile.