An earth pressure gauge pop-up installer
A technology of earth pressure gauge and installer, which is applied in the field of foundation soil survey, construction, basic structure engineering, etc. It can solve the problems of poor determination of the jacking force, loss of monitoring effect of the instrument, and unsatisfactory effect, so as to achieve the convenience of installation Effect
Active Publication Date: 2015-10-28
NANJING HYDRAULIC RES INST
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Problems solved by technology
The hanging cloth method can install the earth pressure gauge, but the effect is not ideal. The concrete slurry in the groove can easily seal the force plate of the earth pressure gauge, and the instrument loses the monitoring effect; the steel frame jack method can not only install strain gauges, steel bar gauges, but also Install an earth pressure gauge, but the installation cost is high, and each earth pressure gauge needs a set of jacks, and the jacking force is not easy to determine
Method used
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Embodiment
[0018] according to figure 1 and image 3 As shown, the earth pressure gauge pop-up installer of this embodiment includes a pair of support plates 1 oppositely arranged. A rotating shaft 2 is connected between the support plates 1 .
[0019] Such as figure 2 As shown, the earth pressure gauge pop-up installer of the present embodiment is arranged in the drilled soil layer tunnel. Wherein, a driving rod 3 that can freely rotate in a plane parallel to the support plate 1 is hinged on the rotating shaft 2 . The middle part of the driving rod 3 is provided with a through hole, and the rotating shaft 2 passes through the through hole, and the aperture of the through hole is larger than the diameter of the rotating shaft 2 .
[0020] The driving rod 3 is located on the rod body above and below the rotating shaft 2, and the first earth pressure gauge push rod 4 and the second earth pressure gauge push rod 5 are respectively reversely hinged. The heads of the push rods 4 and 5 f...
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The invention relates to a pop-up mounting device for a soil pressure gauge. The pop-up mounting device comprises a pair of support plates arranged oppositely, wherein a rotating shaft is connected between the support plates; a driving lever which can freely rotate in a plane parallel to the support plate is hinged to the rotating shaft; the lever bodies, above and below the rotating shaft, of the driving lever are reversely hinged to a first soil pressure gauge push rod and a second soil pressure gauge push rod; one ends, far away from the driving lever, of the first and second soil pressure gauge push rods are connected with soil pressure gauges; two ends of the driving lever are connected with a first spring and a second spring which are respectively arranged in the same direction with the first or second soil pressure gauge push rod; the first and second springs from traction pre-tightening to the driving lever after stretching; a clamping slot for holding a bayonet lock for limiting the driving lever is arranged in the support plate; a traction rope is connected with the bayonet lock; when the bayonet lock is pulled out of the clamping slot by the traction rope, the first and second spring contract, the driving lever is pulled by the first and second springs to push the first and second soil pressure gauge push rods to move.
Description
technical field [0001] The invention relates to the field of earth pressure testing, in particular to an earth pressure gauge installation device. Background technique [0002] Earth pressure gauges are installed and buried in hydraulic and civil construction projects, usually to understand the force of the soil on the structure or the normal pressure of the structure on the foundation soil, and several sections should be selected on the structure or the ground For the layout of measuring points, the cross-section should choose the place where the structure and soil bear the highest pressure, and it is also the place where it is most necessary to understand the stress state of the structure and soil. [0003] The earth pressure gauge is composed of a back plate, an induction plate, a signal transmission cable, a vibrating wire and an exciting electromagnetic coil, etc. It is an effective monitoring device for understanding the variation of the internal earth pressure of the ...
Claims
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IPC IPC(8): E02D1/08
Inventor 马福恒李子阳戴群胡江何文洲俞扬峰
Owner NANJING HYDRAULIC RES INST