Temperature-pressure-osmotic pressure coupling bidirectional electromagnetic loading three-axis SHPB test system

Abstract

The invention provides a temperature-pressure-osmotic pressure coupling electromagnetic loading three-axis SHPB test system; the test system mainly comprises an electromagnetic pulse emission system,an axial pressure servo control loading system, a confining pressure servo control loading system, a temperature control system, an osmotic pressure loading system, a rod piece system and a data monitoring and collecting system. According to the system, on the basis of a traditional SHPB, a confining pressure, temperature and osmotic pressure real-time loading and controlling system is innovatively introduced, so that the technical problem that an existing test device cannot simulate the rock mass dynamics response research of deep rock mass under the coupling effect of temperature-pressure-osmotic pressure and dynamic disturbance load is solved.

Description

technical field

[0001] The invention belongs to the field of rock dynamics research. More specifically, it relates to a temperature-pressure-osmotic pressure coupled bidirectional electromagnetic loading triaxial SHPB test system for the study of rock dynamic mechanical properties and fracture laws under multi-field coupling conditions in deep underground. SHPB: Hopkinson Rod. Background technique

[0002] With the continuous depletion of shallow mineral resources, resource and energy mining has gradually shifted to deep development. At present, the world's coal mining depth has reached 1500m underground, metal mineral mining has exceeded 4000m, and oil drilling has reached 7500m underground. After entering the deep mining, due to the complex environment of the deep rock mass, it faces conditions such as high ground stress, high ground temperature, high karst water pressure and strong engineering disturbances (such as explosion waves, earthquakes and rockbursts, etc.), cau...

Examples

Embodiment approach 1

[0039] figure 1 It is a three-dimensional diagram of the temperature-pressure-osmotic pressure coupled bidirectional electromagnetic loading triaxial SHPB test system. The test device is placed on the support platform 1, which is mainly composed of an electromagnetic pulse emission system, an axial pressure servo control loading system, a confining pressure loading device and its servo control. It consists of loading system, temperature control system, osmotic pressure loading system, rod system and data monitoring and acquisition system. The test system is centered on the test sample 29 (such as image 3 shown), arranged symmetrically. Among them, the left axial load fixed baffle 2 and the right axial load fixed baffle 11 are respectively fixed on the left and right ends of the support platform 1, and the center and surroundings are respectively provided with central mounting holes and peripheral mounting holes, and the left axial load The oil cylinder 3 and the right axial...

Embodiment approach 2

[0043] Best Implementation Mode 2: Dynamic Impact Test Study on Fully Saturated Sandstone Samples Under Temperature-Pressure-Osmotic Pressure Coupling Triaxial Loading

[0044] The relevant equipment of the test system is as follows: Figure 1-3 The connection mode shown is placed on the support platform 1 whose length, width and height are 6m, 0.6m and 1m respectively. Arranged on the support platform 1 in a left-right symmetrical manner, first place the left axially loaded fixed baffle 2 with a width, height and thickness of 600mm, 400mm and 50mm respectively on the left end of the support platform 1, where the diameter and length are 250mm and 50mm respectively. The 200mm left axial pressure loading cylinder 3 passes through the center mounting hole of the left axial pressure loading fixed baffle 2, and is welded with it to form an integral structure. The diameter of the left axial pressure loading piston 4 is 100mm, and the piston stroke length is 200mm , through the pres...

Embodiment approach 3

[0049] Best Implementation Mode 3: Dynamic Impact Test Research on Granite Samples with Central Cylindrical Hole Under Temperature-Pressure-Internal Pressure Coupled Triaxial Loading

[0050] The relevant equipment of the test system is as follows: Figure 1-3 The connection shown is placed on a support platform 1 with a length, width and height of 6m, 0.6m and 1m respectively. hole 30, such as Figure 9-12 ) as the center, the test system is arranged on the support platform 1 in a left-right symmetrical manner, and the left side axially loaded fixed baffle 2 with a width, height and thickness of 600mm, 400mm and 50mm respectively is placed on the support platform 1 At the left end, the left axial pressure loading cylinder 3 with a diameter and length of 250 mm and 200 mm respectively passes through the central mounting hole of the left axial pressure loading fixed baffle plate 2 and is welded with it to form an integral structure, and the left axial pressure loading piston 4...

technical field

[0001] The invention belongs to the field of rock dynamics research. More specifically, it relates to a temperature-pressure-osmotic pressure coupled bidirectional electromagnetic loading triaxial SHPB test system for the study of rock dynamic mechanical properties and fracture laws under multi-field coupling conditions in deep underground. SHPB: Hopkinson Rod. Background technique

[0002] With the continuous depletion of shallow mineral resources, resource and energy mining has gradually shifted to deep development. At present, the world's coal mining depth has reached 1500m underground, metal mineral mining has exceeded 4000m, and oil drilling has reached 7500m underground. After entering the deep mining, due to the complex environment of the deep rock mass, it faces conditions such as high ground stress, high ground temperature, high karst water pressure and strong engineering disturbances (such as explosion waves, earthquakes and rockbursts, etc.), cau...

Examples

Embodiment approach 1

[0039] figure 1 It is a three-dimensional diagram of the temperature-pressure-osmotic pressure coupled bidirectional electromagnetic loading triaxial SHPB test system. The test device is placed on the support platform 1, which is mainly composed of an electromagnetic pulse emission system, an axial pressure servo control loading system, a confining pressure loading device and its servo control. It consists of loading system, temperature control system, osmotic pressure loading system, rod system and data monitoring and acquisition system. The test system is centered on the test sample 29 (such as image 3 shown), arranged symmetrically. Among them, the left axial load fixed baffle 2 and the right axial load fixed baffle 11 are respectively fixed on the left and right ends of the support platform 1, and the center and surroundings are respectively provided with central mounting holes and peripheral mounting holes, and the left axial load The oil cylinder 3 and the right axial...

Embodiment approach 2

[0043] Best Implementation Mode 2: Dynamic Impact Test Study on Fully Saturated Sandstone Samples Under Temperature-Pressure-Osmotic Pressure Coupling Triaxial Loading

[0044] The relevant equipment of the test system is as follows: Figure 1-3 The connection mode shown is placed on the support platform 1 whose length, width and height are 6m, 0.6m and 1m respectively. Arranged on the support platform 1 in a left-right symmetrical manner, first place the left axially loaded fixed baffle 2 with a width, height and thickness of 600mm, 400mm and 50mm respectively on the left end of the support platform 1, where the diameter and length are 250mm and 50mm respectively. The 200mm left axial pressure loading cylinder 3 passes through the center mounting hole of the left axial pressure loading fixed baffle 2, and is welded with it to form an integral structure. The diameter of the left axial pressure loading piston 4 is 100mm, and the piston stroke length is 200mm , through the pres...

Embodiment approach 3

[0049] Best Implementation Mode 3: Dynamic Impact Test Research on Granite Samples with Central Cylindrical Hole Under Temperature-Pressure-Internal Pressure Coupled Triaxial Loading

[0050] The relevant equipment of the test system is as follows: Figure 1-3 The connection shown is placed on a support platform 1 with a length, width and height of 6m, 0.6m and 1m respectively. hole 30, such as Figure 9-12 ) as the center, the test system is arranged on the support platform 1 in a left-right symmetrical manner, and the left side axially loaded fixed baffle 2 with a width, height and thickness of 600mm, 400mm and 50mm respectively is placed on the support platform 1 At the left end, the left axial pressure loading cylinder 3 with a diameter and length of 250 mm and 200 mm respectively passes through the central mounting hole of the left axial pressure loading fixed baffle plate 2 and is welded with it to form an integral structure, and the left axial pressure loading piston 4...

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