Tectonic stress field simulation test device and method

A technology of simulation test and simulation method, which is applied in the field of simulating and studying the evolution characteristics of stress field during the formation of faults and folds. Solve the effect of uneven application of solid force, good toughness, and convenient use

Active Publication Date: 2017-10-31
SHANDONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the existing geological structure simulation test benches, most of them can only simulate vertical structural stress, and are limited to simulate faults, and most of them are simulations with fixed dimensions and inclination angles. They can only realize the control mode of single movement, and cannot realize the simultaneous movement of multiple regions.
For the simulation of horizontal structural movement, the method theory is immature, the experimental equipment is not perfect, and the flexibility is poor

Method used

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  • Tectonic stress field simulation test device and method
  • Tectonic stress field simulation test device and method
  • Tectonic stress field simulation test device and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] This example simulates normal faults and a normal fault tectonic stress field simulation test device. Based on the above device, two smooth plates located above the water bladder are selected, and the two smooth plates are independent, and the two smooth plates are joined together When together, it can completely cover the top surface of the water bladder. During the laying process of similar materials, such as figure 2 As shown, first lay the bottom layer of similar material E. After E is laid, lay the water bladder on top of E, lay the two smooth boards above the water bladder, and then lay D, C, B, and A similar materials on the smooth board. The similar material above the smooth plate needs to be prefabricated for faults, that is, a partition 5 with a certain inclination angle is set on the similar material layers of D, C, B, and A to simulate fracture.

[0058] The specific test method is:

[0059] The first step is to calculate the required strength of each layer acco...

Embodiment 2

[0069] This embodiment simulates reverse faults, and the device for simulating reverse faults is as follows image 3 As shown, it is the same as in Example 1. First, the bottom layer of similar material E is laid. After E is laid, a water bladder is laid on top of E, the above two smooth boards are laid on top of the water bladder, and D and C are laid on the smooth board in sequence , B, and A are similar material layers. In the specific test method, the two are slightly different. The difference from Example 1 is: in the specific test method, in the fifth step, this embodiment is to remove the baffle and the lower end of the fault Click the smooth plate on the left to simulate the formation and evolution of reverse fault structures.

Embodiment 3

[0071] This embodiment simulates a combined fault, such as Figure 4 As shown, the combined fault structural stress field simulation test device, after the loading module 1, the side loading system 7 and the console 3 are all installed in place, the bottom layer E is first laid in the cuboid frame 6. After the E is laid, the E The water bladder is laid on the top, and three smooth plates are laid on the top of the water bladder. The length of the three smooth plates and the location of their joints are divided according to the lower endpoint of the combined fault. The similar material layer above the smooth plate There are prefabricated partitions in D, C, B, and A to simulate faults. There are two partitions, and the inclination angles of the two are obtained by calculation.

[0072] The specific simulation method for simulating combined faults in this embodiment includes the following steps:

[0073] The first step is to calculate the required strength of each layer according to ...

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Abstract

The invention discloses a structural stress field simulation test device and method, which includes a simulation test bench, a loading module located on the top of the test bench, a lateral loading system and a console, the simulation test bench includes a cuboid frame and a baffle, and the baffle Installed on the periphery of the cuboid frame, a model is laid in the frame, and the model is formed by laying several layers of similar materials in sequence, and a water bag and a smooth board assembly are arranged between the bottom layer of similar materials and the upper layer of similar materials, and the smooth board assembly includes At least two smooth boards and a slot portion for relative movement of the smooth boards, the water bag is laid under the smooth boards, and at least one partition for simulating a fracture layer is preset in a similar material layer above the smooth boards, The dividing plate and the water bladder form a certain angle in the horizontal direction. The invention can quantitatively study the evolution process of the stress field in the formation process of the tectonic movement, and bring beneficial theoretical and data basis for underground activities such as mining.

Description

Technical field [0001] The invention relates to a test device and method for the formation and evolution of rock geological structure. It is an experimental instrument for simulating changes in stress field during the evolution of geological structure through simulation experiments, and is especially used to simulate and study the evolution characteristics of stress fields during the formation of faults and folds. . Background technique [0002] With the increasing development of underground engineering such as human mining, faults, folds and other geological structures have brought huge obstacles to the further development of underground production activities and caused serious safety accidents. Therefore, fully understanding the derivation laws of underground structures and the distribution of stress fields has become a top priority for safe and scientific production of underground engineering. However, the current research methods for geological structures still remain at the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01V9/00
Inventor 文志杰宋振骐蒋宇静谭云亮王晓
Owner SHANDONG UNIV OF SCI & TECH
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