Jet grouting pile construction process dynamic monitoring method
A technology of dynamic monitoring and jet grouting piles, which is applied in foundation structure engineering, foundation structure test, construction, etc., can solve problems such as irreparable waste of materials and difficulty in taking remedial measures, and achieve clear and intuitive monitoring results, suitable for popularization Apply, put in nondestructive effects
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[0032] Example 1:
[0033] Using the monitoring method introduced by the present invention, a model test is carried out on a certain site, the jet grouting borehole depth is 15 meters, and the jet grouting pile diameter is 1.5 meters. The specific technology is as follows:
[0034] Such as figure 1 As shown, the dynamic monitoring method of the jet grouting pile construction process is characterized in that the method of dynamically monitoring the size of the pile diameter during the jet grouting pile construction process based on the microseismic sensor adopts the following steps:
[0035] Step 1: Drill holes in the jet grouting area, with a bore diameter of 130mm, and the drill hole spacing is 0.8 times the design value of the jet grouting pile diameter;
[0036] Step 2: After the drilling is completed, 20 microseismic sensors are arranged around the target borehole according to the spatial array structure. The horizontal distance between the microseismic sensors and the center of ...
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[0053] Example 2:
[0054] Using the monitoring method introduced by the present invention, a model test is carried out at a certain site, the depth of the jet grouting pile is 10 meters, and the diameter of the jet grouting pile is 1.5 meters. The specific technology is as follows:
[0055] Such as figure 1 As shown, the dynamic monitoring method of the jet grouting pile construction process is characterized in that the method of dynamically monitoring the size of the pile diameter during the jet grouting pile construction process based on the microseismic sensor adopts the following steps:
[0056] Step 1: Drill holes in the jet grouting area with a bore diameter of 120mm, and the drill hole spacing is 0.9 times the design value of the jet grouting pile diameter;
[0057] Step 2: After the drilling is completed, 18 microseismic sensors are arranged in a spatial array structure around the target borehole. The horizontal distance between the microseismic sensors and the center of the ...
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