Small bore inner wall strain foil pasting method for rock stress releasing test and apparatus thereof
A technology of rock stress and sticking device, which is applied in the field of rock mechanics testing, can solve the problems of narrow space, lack of convenient and accurate sticking tools or devices for strain gauges on the inner wall of small rock drilling holes, difficulty in sticking strain gauges, etc., and achieve the effect of convenient operation
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[0027] Below in conjunction with accompanying drawing and specific embodiment the present invention will be described in further detail:
[0028] The invention relates to a method for sticking strain gauges on the inner wall of a small borehole for a rock stress relief test, comprising the following steps:
[0029] S1 Install the two airbags on the fixing device, and set the strain gauge laying sheet and the adhesive storage device on the two airbags respectively, wherein the strain gauge laying sheet is provided with a groove connected with the adhesive storage device;
[0030] S2 Temporarily fix the strain gauge at the center of the strain gauge laying sheet, and deliver the airbag to the set position in the small drill hole;
[0031] S3 first inflate the airbag where the adhesive is located, squeeze the adhesive between the groove and the inner wall of the borehole, then inflate the airbag where the strain gauge laying piece is located, and paste the strain gauge on the inn...
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