A self-expanding loading and unloading device and method
An unloading device and self-expansion technology, which is applied to measuring devices, mechanical devices, instruments, etc., can solve the problems of cumbersome operation, generation of artifacts, and high maintenance costs, and achieve the effects of simple and convenient operation, eliminating artifacts and saving costs.
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Embodiment 1
[0036] refer to Figure 1-6 , a self-expanding loading and unloading device, which includes a cuboid container with a compartment; the cuboid container includes a bottom plank 9, and the top of the bottom plank 9 is assembled into a cuboid by a vertical plank 4 and a side plank 6 Structure: a plurality of notches 8 are processed on the bottom plank 9, and partitions 5 are installed on the upper limit of the notches 8, and the cuboid structure is divided into a loading compartment 1, an unloading compartment 2 and a rock sample compartment 3 . By adopting the above-mentioned device, it mainly uses the self-expansion effect of the expansive cement slurry to provide loading force, which solves the problem of real-time monitoring of different levels of loading and unloading forces under the rock when the CT scan observes the internal damage of the rock sample without releasing the stress state. In addition, the present invention does not need electricity and oil pressure, and can...
Embodiment 2
[0047] The operation method of adopting any one of the described self-expanding loading and unloading devices may further comprise the steps:
[0048] 1) Make the bottom plank 9 and the side plank 6 with the notch 8, and make the vertical plank 4, and then splice them into a wooden cuboid container through the mortise and tenon joint structure 7;
[0049] 2) Wrap the partition 5 with carbon fiber cloth, set a heat insulation layer and a pressure sensor inside it, and connect it with the notch 8 on the bottom plank 9 to form multiple loading compartments 1 and unloading compartments 2 and rock sample interlayer 3;
[0050] 3) Put cement mixed with expansion agent in the loading compartment 1, put hydraulic oil or water in the unloading compartment 2, and put rock samples in the rock sample compartment 3;
[0051] 4) Through the self-expansion of the expansion cement slurry in the loading compartment 1, a loading force is applied to the rock sample, and different levels of load...
Embodiment 3
[0054] Assemble the prepared wooden boards and PVC partitions into a cuboid container with interlayers to form several interlayers, which are divided into three parts: loading interlayer, unloading interlayer and rock sample interlayer, and paste pressure on the interlayer board sensor, and heat-insulate the layered nano-insulation board.
[0055] In the wooden container, the length of each loading compartment is 5cm, and the width and height are 20cm; the length of the unloading compartment is 15cm, the width and height are 20cm, and the length, width and height of the compartment for loading rock samples are 20cm. .
[0056] The expansion cement is placed in the loading compartment, and the expansion agent cement slurry with different contents is prepared as follows:
[0057] Prepare expansion agent cement slurry with expansion agent content of 10%, 15%, 20%, 25%, and 30%, that is, take ordinary Portland cement 1800g, 1700g, 1600g, 1500g, 1400g, a total of 5 groups. Then t...
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