Injection slurry diffusion range and rule determining method during anchor rod slurry injection
A technology of grouting and bolting, which is applied in the installation of bolts, earthwork drilling, instruments, etc. It can solve the problems of complex and changeable, inaccurate diffusion radius of grouting fluid, and less system research, and achieve the effect of easy installation
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[0047] The present invention will be further described below in conjunction with the drawings and embodiments:
[0048] A method to determine the spread range of grouting liquid during bolt grouting, such as figure 1 As shown, including the following steps:
[0049] Step 1: In an area with the same geological conditions, two sections are selected at a certain distance to complete the bolt drilling and installation of the anchor bolt support of the underground chamber engineering. According to the length of the anchor rod used, use a drill to drill the hole. The depth of the hole is generally 50-100mm longer than the length of the anchor rod in the installation hole.
[0050] Step 2: Grouting the anchor rod, and after the grouting is completed, seal the grouting hole 7 of the anchor rod.
[0051] The sealing method is as follows: when sealing the hole, use an anchor trolley or an air gun to drill, and then apply the ring-shaped polyester film sealed package of Malisan and the ring-shap...
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