Penetrating jointed rock mass hydraulic fracturing extension destruction device and test method

A jointed rock mass and hydraulic fracturing technology, which is applied in the direction of measuring devices, using stable tension/pressure testing material strength, instruments, etc., can solve the problem of poor hydraulic pressure monitoring accuracy, the existence of test pieces, and the inability to adapt to test pieces Specifications and other issues, to achieve the effect of convenient operation of the device, ensuring the accuracy of water pressure, and increasing practical performance

Pending Publication Date: 2022-01-21

CHINA RAILWAY 14TH BUREAU GRP 1ST ENG CO LTD +1

0 Cites 0 Cited by

AI-Extracted Technical Summary

Problems solved by technology

[0008] The purpose of the present disclosure is to provide a hydraulic fracturing expansion and destruction device and test method for penetrating jointed rock mass, so as to solve the problems in the prior art that th...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine

Method used

Existing penetrating jointed rock mass hydraulic fracturing expansion destruction device has certain air in jointed rock mass test piece 1 inside when in use, can produce error for jointed rock mass test piece 1 destruction, by on organic glass plate 10 Set the exhaust water outlet 22, the motor drives the high-pressure water storage chamber 15 to inject water into the sealing fixture through the water outlet pipe 21, use the volume space of the water to drain the air inside the jointed rock mass test piece 1, close the exhaust water outlet 22 and apply water pressure to The jointed rock mass test piece 1 is destroyed to a certain extent to avoid errors caused by the damage of the jointed rock mass test piece 1 .

Sealing fixture comprises support, and support comprises two symmetrically arranged rectangular frames and the bolt rod 24 that connects two rectangular frames, and rectangular frame comprises vertical strut 4 and longitudinal strut 3, and vertical strut 4 and longitudinal strut 3 are all telescopic The screw rod 24 has a set length, which is selected according to the size of the jointed rock mass test piece 1 during selection; a vertical adjustment bolt 7 and a longitudinal adjustment bolt 8 are respectively arranged on the vertical pillar 4 and the longitudinal pillar 3, and the The vertical struts 4 and the longitudinal struts 3 can be extended or shortened accordingly, and their specific structures are known in the art, and will not be repeated here. By changing the lengths of the bolt rod 24, the vertical pillar 4 and the longitudinal pillar 3, it can be applied to jointed rock mass test pieces 1 of different sizes when used in the hydraulic fracturing expansion failure test of the penetrating jointed rock mass, which greatly increases the practicality of the device. performance.

[0041] In o...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine

Abstract

The invention relates to a rock mechanics test device, in particular to a through jointed rock mass hydraulic fracturing extension destruction device which comprises a sealing clamp and a water injection device for providing set water pressure for the sealing clamp, and a water pressure monitoring sensor is arranged at a water outlet of the water injection device; the sealing clamp comprises a support, the support comprises two symmetrically-arranged rectangular frames and a bolt rod connecting the two rectangular frames, each rectangular frame comprises a vertical supporting column and a longitudinal supporting column, and the vertical supporting columns and the longitudinal supporting columns are telescopic. A flat plate is arranged on the vertical supporting columns and the longitudinal supporting columns of the rectangular frame on each side, a space for placing a jointed rock mass test piece is formed between the flat plates on the two sides, a water injection port is formed in one flat plate, and an exhaust water outlet is formed in the other flat plate. The technical scheme disclosed by the invention can be suitable for test pieces with different sizes, and ensures that no air exists in the test pieces during the test.

Application Domain

Material strength using tensile/compressive forces

Technology Topic

Structural engineeringOutfall +7

Image

$Penetrating jointed rock mass hydraulic fracturing extension destruction device and test method$
$Penetrating jointed rock mass hydraulic fracturing extension destruction device and test method$
$Penetrating jointed rock mass hydraulic fracturing extension destruction device and test method$

Examples

Experimental program(2)

Example Embodiment

[0037] Example 1

[0038] like Figure 1 - Figure 3 As shown, the present embodiment provides a typical type of water pressure, a typical penetration of the rock mass, including a sealing fixture, and an injection apparatus for providing a water pressure for the sealing fixture, and the water injection port of the water injection device. Water pressure monitoring sensor 19;

[0039] The sealing fixture includes a bracket, a bracket comprising two symmetrical arranged rectangular frames and a bolt rod 24 connected to the two rectangular frames, including vertical struts 4 and longitudinal struts 3, vertical struts 4 and longitudinal pillars 3 are scalable; screw rod 24 has a set length, selecting the size of the rock body test piece 1 when selecting; vertical struts 4 and longitudinally adjustable bolts 8, respectively, respectively, by screwing bolts, respectively. The stretch 4 and the longitudinal pillar 3 are elongated or shortened, and the specific structure is prior art, which is not described herein. By changing the length of the bolt rod 24, the vertical strut 4, and the longitudinal pillar 3 length, it can be applied to the semacle rock body test piece 1 for different sizes when used through the rock body water pressure, which is greatly increased, greatly increasing the practical use of the device. performance.

[0040] A flat plate 4 and the longitudinal strut 3 of each side rectangular frame are provided with a flat plate, and the two side plates have a space for placing the rock mass specimen 1, with a wetting port 2 on the plate, another flat plate. There is an exhaust water outlet 22.

[0041] In order to observe the homogeneous rock body test piece 1 at any time, the plate is a transparent plate, preferably the organic glass plate 10, has a good intensity and clear transparency.

[0042] The existing rock mass water pressure fractured and the destructive device exists in the inside of the jergestone body test piece 1, and the error can be generated for the jarger rock body test piece 1, by providing exhaust gas on the organic glass plate 10 Water port 22, the motor drives the high-pressure storage chamber 15 through the water pipe 21 to the sealing clamp, the volumetric space of the water is released, and the exhaust water outlet 22 is closed to the water pressure to a certain degree of destruction. Jarcy rock mass test piece 1, avoiding the corridor rock body test piece 1 damage will result in an error.

[0043] like figure 2 As shown, the vertical strut 4 of each rectangular frame is hinged between the longitudinal struts 3, and the lateral pillar 5 is scalable. One end of the lateral struts 5 is hinged in the intermediate position of the vertical strut 4, and the other end is hinged to the intermediate position of the longitudinal pillar 3. A lateral adjustment bolt 9 is disposed on the lateral strut 5, and the length of the side towed 5 can be adjusted by a spinning adjustment bolt 9, and the specific structure is prior art, which is not described herein. Applying a lateral pillar 5 can improve the overall stiffness and stability of the device.

[0044] like figure 1As shown, the water injection device includes a high pressure storage chamber 15, and a water storage tub 12 communicates with the high-pressure storage chamber 15, and a motor that drives the high-pressure storage chamber 15, this embodiment preferably selects a stepping motor 13. The high-pressure storage chamber 15 is provided with a water pump to absorb the water and pressurized drainage, and the specific structure is prior art, which is not described herein. The water port 2 of the high-pressure storage chamber 15 is in communication with the injection port 2, and the water pressure monitoring sensor 19 is disposed at the exit of the high-pressure storage cavity 15.

[0045] A connecting pipe 21 is provided on the water pipe 21, which can be detachable, on the one hand, can satisfy the position of the indoor device and the required water pipe length size, and on the other hand, in the disassembly opening state, the high-pressure storage cavity 15 Water discharge.

[0046] The water supply valve 11 is provided on the water pipe, and the water supply valve 21 is provided with a water valve 17. The stepper motor 13 can move forward in reverse, and when the stepper motor 13 is inverted, the inlet valve 11 is opened, and the water supply valve 17 is turned off, and the water in the water storage tub 12 can be inserted into the high-pressure storage cavity 15, as a stepper When the motor 13 is moving forward, close the water valve 11, open the water valve 17, and press the water to the sealing clamp, in addition, opening the connecting pipe joint 18 can discharge the remaining water after the test.

[0047] like figure 2 As shown, a water pressure sensor 23 is also provided on the organic glass plate 10 provided with the exhaust water outlet 22. The water pressure sensor 23 provided on the air pressure monitoring sensor 19 and the exhaust water outlet 22 side of the air pressure monitoring sensor 19 and the exhaust water outlet 22 side of the air pressure monitoring sensor 19 at the high-pressure storage chamber 15, and whether there is a dense Improper pressure relief condition, to ensure that the controller 14 feeds back the water pressure accuracy of the computer.

[0048] In this embodiment, the throughput rock body water pressure caraptifiable expansion failure device also includes a controller 14 for controlling the stepper motor 13 operating, recording the water pressure monitoring of the water pressure monitoring sensor 19 and the water pressure sensor 23.

[0049] The stepping motor 13 and the controller 14 are fixed to the base 16, and the base 16 extends to the lower left side of the high-pressure storage chamber 15, and the high-pressure storage chamber 15 is connected to the step motor 13 through the screw 20.

[0050] The base 16 is connected to the high-pressure storage chamber 15 and the step motor 13 constitute a rigid connection, so that the high-pressure storage chamber 15 maintains relative stability during pressurization, reducing the test error caused by the vibration factor in the operation.

Example Embodiment

[0051] Example 2

[0052] This embodiment provides a test method of a water pressure cracking of the jet rock mass water pressure based on the first embodiment, characterized in that the steps of:

[0053] Step 1, placing the jaw rock body test piece 1 between the two organic glass plates 10, and apply a rubber-shaped filler in the edge of the jet body test piece 1 and the plane of the glass plate 10, and the rock body test piece is fixed by a telescopic bracket. 1 to the real state;

[0054] Step 2, through the water pipe 21 in the water injection port 2, the injection port 2 of the sealing clamp is connected, and the pressurized water pump is sent to the jerger rock body test piece 1 by the stepping motor 13, and the exhaust water outlet 22 will be opened. The air is discharged in the sealed clamp, and then blocking the exhaust water outlet 22;

[0055] Step 3, acquire the water pressure data by the water pressure monitoring sensor 19 to the control data, and transmit the water pressure value in real time to the controller 14;

[0056] Step 4, when the water pressure monitoring sensor 19 rises to a certain region, it is observed that the homogeneous rock body test piece 1 along the cracked crack, until the water pressure is rapidly decreased, stop the stepper motor 13 operation;

[0057] Step 5, by analyzing the collected data, and analyzes the mechanical properties and destroying forms of the water pressure of the jet rock mass under hydraulic coupling conditions.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine

Login to view more

PUM

Description & Claims & Application Information

We can also present the details of the Description, Claims and Application information to help users get a comprehensive understanding of the technical details of the patent, such as background art, summary of invention, brief description of drawings, description of embodiments, and other original content. On the other hand, users can also determine the specific scope of protection of the technology through the list of claims; as well as understand the changes in the life cycle of the technology with the presentation of the patent timeline. Login to view more.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine

Login to view more

Classification and recommendation of technical efficacy words

Improve practical performance

People also interested in

Mechanical engineering Mechanics Water pressure

Penetrating jointed rock mass hydraulic fracturing extension destruction device and test method

AI-Extracted Technical Summary

Problems solved by technology

Method used

Abstract

Image

Examples

Example Embodiment

Example Embodiment

PUM

Description & Claims & Application Information

Similar technology patents

Environment-friendly type adhesive for coating printing and dyeing as well as preparation method and application thereof

Plastic pipe cooling device

Multi-layer combined type anti-extrusion and fresh-keeping peach transportation case and using method

Tablecloth paper containing detergent

A storage device used for engineering costs

Classification and recommendation of technical efficacy words

Pest prevention planting tank

Novel protective fence for building operation

Pesticide spraying device for tea leave planting

Lignin purification method

Automatic intelligent sorting device based on e-commerce

People also interested in