Churning process, often there is a certain amount of soil particles, Tanggu track Jet rig, along with a portion of the slurry wall grouting pipe out of the ground, through the mud spillover observation, track Jet rig, which models, You can keep abreast of the soil conditions, generally determine the effect of Jet and determine reasonable parameters, etc., based on experience, track jet grouting rig parameters, run the pulp (with soil particles, water and slurry inside) is less than 20% of normal grouting When the phenomenon, track Jet rig manufacturer, more than 20%, or completely take slurry, should take appropriate measures to identify the cause. [Tianjin-strong high-pressure pump Co., Ltd. to recommend common failings of governance star product] drilling common problem of governance: Drilling slope is too large, difficult to drill and to drill, drill deep enough. Governance measures: should control the drilling depth, promptly corrected oblique hole, with drilling inclinometer inspection hole deviation measurements. Drilling depth is greater than the depth of grouting 0.5 ~ 1.0m.