Detection device and detection method for ultra-long anchor cable hole forming quality in karst area
A detection device and area technology, applied in the direction of measuring device, measuring angle, surveying and navigation, etc., can solve problems such as easy repeated up and down vibration, unfavorable engineering safety, hidden safety hazards, etc. The data optimization method is simple, and the effect of enhancing strength and stiffness
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Embodiment 1
[0052] Embodiment 1: see Figure 1-Figure 7 , a karst area ultra-long anchor cable hole-forming quality detection device: comprising a detection auxiliary device, an information collection device and a data processing device;
[0053] Detection auxiliary device: including casing 4, casing head 3, fixed pulley 11 and rope 5;
[0054]There are four grooves 14 extending along the length direction of the sleeve 4 inside the sleeve 4, and the four grooves 4 are evenly arranged along the circumference of the sleeve 4, that is, on the cross section of the sleeve 4, two adjacent grooves The angle formed by the line to the center of the circle is 90°.
[0055] The sleeve 4 is arranged in the hole of the anchor cable, and among the four grooves 14, two grooves 14 are on the vertical plane, and two grooves 14 are on the horizontal plane; One of the connecting lines is horizontal and the other is vertical. As an optimization, the sleeve 4 is composed of multiple sleeve segments of equa...
Embodiment 2
[0065] Example 2: see Figure 8 , using the ultra-long anchor cable hole-forming quality detection device in the karst area described in the embodiment, the specific steps are as follows:
[0066] S1: Putting the inclinometer into a horizontal inclinometer, after the inclinometer is put into the casing 4, the initial position is the initial position point, and the coordinates of the initial position point read by the tester 7 are (x 1 ,y 1 );
[0067] S2: Pull the end of the rope 5 outside the casing 4, and pull the inclinometer 7 to the inside of the anchor cable hole for a meter to obtain the No. 2 observation point, and the tester 7 reads the coordinates of the No. 2 observation point (x 2 ,y 2 ), the inclinometer 7 pulls to the inner side of the anchor cable hole After 10 meters, obtain No. n observation point, described tester 7 reads the coordinates of No. n observation point (x n ,y n ), n is a natural number;
[0068] S3: Let the initial position of the inclino...
Embodiment 3
[0081] Example 3: The method of Example 2 is used to detect the holes formed by the anchor cables on the high and steep slope of the foundation pit of the Ice and Snow World, and the measured data are processed and analyzed to obtain the direction of the anchor cable holes, as shown in Figure 9.
[0082] From Figure 9 It can be seen that the direction diagram of the anchor cable hole is about 15°, which is close to the design requirement of 12° for the anchor cable drilling. Although the drill hole fluctuates up and down, this is related to the karst geology that causes the drill bit to stick and drift easily after stopping the drilling.
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