CN109459174B - Static breaker expansion force testing device and testing method - Google Patents
Static breaker expansion force testing device and testing method Download PDFInfo
- Publication number
- CN109459174B CN109459174B CN201811582038.9A CN201811582038A CN109459174B CN 109459174 B CN109459174 B CN 109459174B CN 201811582038 A CN201811582038 A CN 201811582038A CN 109459174 B CN109459174 B CN 109459174B
- Authority
- CN
- China
- Prior art keywords
- water
- reaction
- water injection
- expansion force
- testing device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 182
- 230000003068 static effect Effects 0.000 title claims abstract description 157
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 372
- 238000006243 chemical reaction Methods 0.000 claims abstract description 151
- 238000002347 injection Methods 0.000 claims abstract description 126
- 239000007924 injection Substances 0.000 claims abstract description 126
- 238000000034 method Methods 0.000 claims abstract description 16
- 230000000903 blocking effect Effects 0.000 claims abstract description 11
- 239000003795 chemical substances by application Substances 0.000 claims description 30
- 238000010992 reflux Methods 0.000 claims description 5
- 238000004891 communication Methods 0.000 claims description 3
- 230000008961 swelling Effects 0.000 claims description 2
- 230000008859 change Effects 0.000 abstract description 19
- 239000011435 rock Substances 0.000 abstract description 5
- 230000008569 process Effects 0.000 description 9
- 230000007613 environmental effect Effects 0.000 description 7
- 238000002474 experimental method Methods 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000005422 blasting Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000006703 hydration reaction Methods 0.000 description 2
- 239000000376 reactant Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 239000008400 supply water Substances 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention provides a static breaker expansion force testing device, which belongs to the technical field of rock engineering and comprises a testing device main body, wherein a reaction cavity is arranged in the testing device main body; the reaction cavity is arranged in the temperature control system; the water injection pipe, the water inlet end is set up outside reaction chamber, the water outlet end extends to the reaction chamber, and the end of the water outlet end has baffles used for plugging the outlet of the water injection pipe, there are water injection holes communicating inner cavity of the water injection pipe with reaction chamber on the sidewall of the part that the water injection pipe extends to the reaction chamber; and the rubber sleeve is sleeved outside the side wall of the water injection pipe, provided with the water injection hole, and is used for blocking the outlet of the water injection hole. The invention also provides a static breaker expansion force testing method. The invention provides a device and a method for testing the expansion force of a static breaker, and aims to solve the technical problems that the existing expansion force testing device cannot measure the change of the expansion force of the static breaker during water injection and the expansion force testing device cannot realize temperature control.
Description
Technical Field
The invention belongs to the technical field of rock engineering, and particularly relates to a static breaker expansion force testing device and a testing method.
Background
The expansion force is the force generated when the static breaker is mixed with water and the additive to generate hydration reaction. In the process of urban tunnel, old city transformation, underground engineering and rock mass excavation, ordinary blasting can generate larger noise, and some blasting sites are adjacent to important structures or structures and cannot be blasted, so that the static blasting by using the static breaker has more advantages. In static crushing construction of rock mass, the expansion force of the crushing agent has an important influence on static crushing design parameters of the rock mass, so that the test and experiment on the expansion force of the static crushing agent are very important.
The expansion force of the static breaker has very close relation with the environmental influence, different experimental conditions and experimental environments can have obvious influence on the expansion force, the existing expansion force testing device has a simple structure, only can test the expansion force of the static breaker under a single condition, in actual engineering, water needs to be continuously injected into a drill hole in the reaction process of the static breaker sometimes, and the existing expansion force testing device and method for the static breaker cannot perform water injection operation in the reaction process of the static breaker, and further cannot measure the change of the expansion force of the static breaker in water injection.
Disclosure of Invention
The invention aims to provide a device and a method for testing the expansion force of a static breaker, and aims to solve the technical problem that the existing expansion force testing device cannot measure the change of the expansion force of the static breaker during water injection.
In order to achieve the above purpose, the invention adopts the following technical scheme: there is provided a static breaker expansion force testing device comprising: a testing device main body provided with a reaction cavity inside;
the water injection pipe, the water inlet end is arranged outside the reaction cavity, the water outlet end extends into the reaction cavity, a baffle plate for blocking the outlet of the water injection pipe is arranged at the end part of the water outlet end, and a water injection hole for communicating the inner cavity of the water injection pipe with the reaction cavity is arranged on the side wall of the part of the water injection pipe extending into the reaction cavity; and
And the rubber sleeve is sleeved on the outer side wall of the water injection pipe and is used for blocking the outlet of the water injection hole.
Further, still include temperature control system, temperature control system include circulation water tank and with the constant temperature water tank of circulation water tank intercommunication, the testing arrangement main part sets up in the circulation water tank, still be provided with the thermometer that is used for measuring the temperature in the circulation water tank, be provided with temperature control device in the constant temperature water tank, constant temperature water tank's lower part be provided with the water pipe of circulation water tank's lower part intercommunication, be provided with the valve on the water pipe.
Further, an overflow water outlet pipe is arranged at the upper part of the circulating water tank, and the temperature control system further comprises an overflow water collecting water tank arranged below the overflow water outlet pipe;
The constant temperature water tank still through reflux unit with circulation water tank circulation intercommunication, reflux unit includes the water pump, be provided with on the water inlet of water pump and extend to overflow water collection tank is interior first connecting pipe, the first delivery port and the exit end of water pump extend to the inlet end intercommunication of the interior second connecting pipe of constant temperature water tank.
Further, the water pump is further provided with a second water outlet, the second water outlet is communicated with the water inlet end of the water injection pipe through a third connecting pipe, and a valve and a flowmeter are arranged on the third connecting pipe.
Further, the bottom plate center of the circulating water tank is provided with an installing seat protruding upwards, the top end of the installing seat is higher than the top end of the water through pipe, and the testing device main body is arranged at the top of the installing seat.
Further, the testing device main body comprises a reaction device and a reaction frame sleeved outside the reaction device;
The reaction device comprises a cylinder body and a piston which is arranged at the top of the cylinder body and used for blocking the top opening of the cylinder body, the cylinder body and the piston enclose the reaction cavity, and the water outlet end of the water injection pipe penetrates through the piston and extends into the reaction cavity;
the reaction frame comprises a reaction beam and a base, wherein the base is arranged below the reaction beam and is matched with the reaction beam to clamp the reaction device, the reaction beam and the base are detachably connected through a connecting column, a pressure box and a rigid bearing plate, which is matched with the reaction beam to clamp the pressure box, are arranged below the reaction beam, the reaction beam and the rigid bearing plate are detachably connected through a connecting piece, the rigid bearing plate is arranged at the top of the piston, and the cylinder body is arranged at the top of the base.
Further, a waterproof strain gauge for testing the radial expansion force of the static breaker is arranged on the outer wall of the cylinder.
Further, the water injection pipe includes water inlet portion and sets up in the reaction chamber and with at least one water injection portion of water inlet portion intercommunication, the water inlet end of water inlet portion extends to outside the reaction chamber, the baffle setting is in the bottom of being located the water injection portion of bottom, be provided with on the lateral wall of water injection portion the water injection hole, rubber sleeve cover is established outside the water injection portion.
The static breaker expansion force testing device provided by the invention has the beneficial effects that: compared with the prior art, the static breaker expansion force testing device is characterized in that the water injection pipe extending into the reaction cavity is additionally arranged on the testing device main body, and a rubber sleeve for sealing an outlet of the water injection hole is sleeved outside the area of the water injection pipe provided with the water injection hole. The rubber sleeve prevents the static reactant from overflowing through the water injection pipe in the water injection process, ensures that the total amount of the static breaker in the reaction cavity is unchanged after water injection and further ensures that the expansion force test of the static breaker is smoothly carried out when the water injection amount is changed. Therefore, the static breaker expansion force testing device provided by the embodiment of the invention overcomes the technical problem that the traditional static breaker expansion force testing device is easy to spray out of the water injection hole when the static breaker is injected in the reaction process of the static breaker, realizes continuous water adding operation in the reaction process of the static breaker, tests the change condition of the expansion force of the static breaker when the expansion reaction condition (water injection quantity) is changed, is more close to the reaction process of the static breaker in actual engineering, and has more accurate testing result.
The invention also provides a static breaker expansion force testing method, which comprises the following steps:
Placing the mixed static crushing agent into a reaction cavity of a testing device main body in a static crushing agent expansion force testing device;
testing the expansion force of the static crushing agent before water injection through the testing device main body, and recording the testing result;
injecting water into the reaction cavity through a water injection pipe;
and testing the expansion force of the static breaking agent during and/or after water injection through the testing device main body, and recording the testing result.
Further, the static breaker expansion force testing device also comprises a temperature control system, wherein the temperature control system comprises a circulating water tank and a constant-temperature water tank communicated with the circulating water tank;
The method is characterized in that a step of adjusting the temperature of a testing environment is further arranged before the step of placing the mixed static breaker into a reaction cavity of a testing device main body in the static breaker expansion force testing device, and the step of adjusting the temperature of the testing environment comprises the following steps:
Placing a testing device body into the circulating water tank;
And adjusting the water temperature in the circulating water tank according to the environment temperature required by the test.
The static breaker expansion force testing method provided by the invention has the beneficial effects that: compared with the prior art, the static breaker expansion force testing device provided by the invention has the advantages that water is added into the reaction cavity in the static breaker reaction process, the technical problem that the static breaker is easy to be sprayed out by the water injection hole in the static breaker reaction process by the traditional static breaker expansion force testing method is solved, the real-time test of the change condition of the axial expansion pressure of the static breaker after the expansion reaction condition (water injection quantity) is changed is realized, the change condition of the axial and/or radial expansion pressure of the static breaker during and/or after the water addition can be measured, the testing process is closer to the reaction process of the static breaker in actual engineering, and the testing result is more accurate, so that the static breaker expansion force testing method provided by the embodiment of the invention is better for serving the actual engineering.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments or the description of the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a vertical cross-section of a static breaker expansion force testing device according to an embodiment of the present invention;
FIG. 2 is a schematic view of a water injection pipe according to an embodiment of the present invention;
FIG. 3 is a schematic view of a vertical cross-section of a static breaker expansion force testing apparatus according to another embodiment of the present invention;
fig. 4 is a schematic structural diagram of a connector according to an embodiment of the present invention.
In the figure: 100. a testing device body; 110. a reaction device; 111. a cylinder; 112. a piston; 120. a connecting piece; 121. a threaded rod; 122, a step of; a fixing nut; 123, a step of; a limit nut; 130. a pressure cell; 140. a reaction frame; 141. a reaction beam; 142. a base; 143. a connecting column; 144 (144); a rigid bearing plate; 150; a connecting piece; 200. a water injection pipe; 210. a water inlet part; 220. a water injection part; 230. a connection part; 300. a baffle; 400. a water injection hole; 500. a rubber sleeve; 600. a temperature control system; 610. a circulation water tank; 620. a constant temperature water tank; 630. a temperature control device; 640. a water pipe; 650. a thermometer; 660. an overflow water outlet pipe; 670. an overflow water collection tank; 680. a mounting base; 700. a reflow device; 710. a water pump; 720. a first connection pipe; 730. a second connection pipe; 740. a third connection pipe; 750. a flow meter; 800. a tool box; 900. waterproof strain gage.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Referring to fig. 1 and 2 together, a static breaker expansion force testing device according to an embodiment of the invention will now be described. The static breaker expansion force testing device comprises a testing device main body 100, wherein a reaction cavity is arranged in the testing device main body; the water injection pipe 200, the water inlet end is arranged outside the reaction cavity, the water outlet end extends into the reaction cavity, a baffle 300 for blocking the outlet of the water injection pipe 200 is arranged at the end part of the water outlet end, and a water injection hole 400 for communicating the inner cavity of the water injection pipe 200 with the reaction cavity is arranged on the side wall of the part of the water injection pipe 200 extending into the reaction cavity; and a rubber sleeve 500 sleeved on the outer side wall of the water injection pipe 200 for blocking the outlet of the water injection hole 400.
When the testing device is used, the mixed static crushing agent is placed in the reaction cavity of the testing device main body 100, the high-pressure water supply device is communicated with the water inlet end of the water injection pipe 200, the testing device main body 100 is started, the axial expansion force of the static crushing agent is monitored in real time, and then the high-pressure water supply device is controlled to supply water to the water injection pipe 200 until the testing is finished. During water injection, the rubber sleeve 500 is propped open by water pressure, and water flowing out from the water injection hole 400 flows into the reaction cavity through a gap between the inner wall of the heat-resistant rubber tube 500 and the outer wall of the water injection tube 200, so that the reaction condition (water injection amount) of the static breaker is changed. During this period, the test device body 100 measures the change in axial expansion force of the static breaker in real time during and after the continuous water injection.
Compared with the prior art, the static breaker expansion force testing device provided by the embodiment of the invention has the advantages that the water injection pipe 200 extending into the reaction cavity is additionally arranged on the testing device main body 100, and the rubber sleeve 500 for blocking the outlet of the water injection hole 400 is sleeved outside the area of the water injection pipe 200 provided with the water injection hole 400. The arrangement of the rubber sleeve 500 avoids the phenomenon that the static reactant overflows through the water injection pipe 200 in the water injection process, ensures that the total amount of the static breaking agent in the reaction cavity is unchanged after water injection during water injection, and further ensures that the static breaking agent expansion force test is smoothly carried out when the water injection amount is changed. Therefore, the static breaker expansion force testing device provided by the embodiment of the invention overcomes the technical problem that the traditional static breaker expansion force testing device is easy to spray out of the water injection hole when the static breaker is injected in the reaction process of the static breaker, realizes continuous water adding operation in the reaction process of the static breaker, tests the change condition of the expansion force of the static breaker when the expansion reaction condition (water injection quantity) is changed, is more close to the reaction process of the static breaker in actual engineering, and has more accurate testing result.
The testing device body 100 in this embodiment may be a static breaker expansion force testing device existing in the market, as long as the axial and/or radial expansion force of the static breaker can be measured. The rubber sleeve 500 may be a heat-resistant rubber sleeve as long as it can be normally used in the reaction process of the static breaker.
As a specific implementation mode of the static breaker expansion force testing device provided by the invention, the bottom end of the water injection pipe 200 extends to the middle lower part of the reaction cavity, and the arrangement ensures that injected water can directly reach the middle lower part of the reaction cavity so as to react with the static breaker in the reaction cavity rapidly, thereby ensuring the accuracy of a testing result and being closer to actual engineering.
As a specific embodiment of the static breaker expansion force testing device provided by the invention, please refer to fig. 3, the static breaker expansion force testing device further comprises a temperature control system 600, the temperature control system 600 comprises a circulating water tank 610 and a constant temperature water tank 620 communicated with the circulating water tank 610, the testing device main body 100 is arranged in the circulating water tank 610, a thermometer 650 for measuring water temperature is further arranged in the circulating water tank 610, a temperature control device 630 is arranged in the constant temperature water tank 620, a water pipe 640 communicated with the lower part of the circulating water tank 610 is arranged at the lower part of the constant temperature water tank 620, and a valve is arranged on the water pipe 640.
When the water temperature in the constant-temperature water tank 620 is adjusted according to the environment temperature required by the experiment, the valve is opened to enable the constant-temperature water tank 620 to supply water to the circulating water tank 610 until the water level of the circulating water tank 610 reaches the designated height, the valve is closed, the thermometer 650 monitors the water temperature in the circulating water tank 610 in real time, the experiment is started, when the thermometer 650 detects that the water temperature in the circulating water tank 610 has a large change, the valve is opened to enable the water in the constant-temperature water tank 620 to enter the circulating water tank 610 from the lower part of the circulating water tank 610 through the water pipe 640, and the water on the upper part of the circulating water tank 610 overflows until the water temperature in the circulating water tank 620 returns to the set temperature.
In the traditional static breaker testing device, the function of controlling the external environment temperature of the static breaker is not needed, so that the environment temperature for measuring the expansion force of the static breaker is often not matched with the temperature of the actual engineering, and a large error exists between the expansion force testing result and the actual result. The device for testing the expansion force of the static crushing agent is provided with the temperature control system 600 capable of adjusting the environmental temperature during the test of the expansion force of the static crushing agent, so that the control of the environmental temperature of the main body 100 of the testing device during the test is realized, the expansion force of the static crushing agent at different environmental temperatures can be tested through the device, and the influence of the rising temperature on the expansion force parameters of the static crushing agent during the reaction process of the static crushing agent can be simulated; meanwhile, the disturbance of heat generated in the reaction process of the static breaker to the ambient temperature can be avoided, so that the test result is closer to reality. In addition, the device can also reflect the influence of the environmental temperature change on the expansion force in the expansion process of the static crushing agent by controlling the change of the water temperature in the circulating water tank 610. The temperature control device 630 is disposed in the constant temperature water tank 620, so that the water temperature in the constant temperature water tank 620 can be always kept at the set temperature; a thermometer 650 is provided in the circulation tank 610 to facilitate an operator's real-time observation of the water temperature in the circulation tank 610.
The setting of the circulating water tank 610 and the constant temperature water tank 620 is adopted, so that the stability of the environment temperature where the testing device main body 100 is positioned is not affected when the water temperature of the constant temperature water tank 620 is adjusted, and the water temperature in the circulating water tank 610 can be quickly and stably adjusted when the water temperature needs to be adjusted, the adjustment rate of the environment temperature where the testing device main body 100 is positioned is improved, the adverse effect of the environment temperature adjustment on the static breaker test is reduced, and the accuracy of the test is ensured.
As a specific embodiment of the static breaker expansion force testing device provided by the invention, referring to fig. 3, an overflow water outlet pipe 660 is arranged at the upper part of the circulating water tank 610, and the temperature control system 600 further comprises an overflow water collecting tank 670 arranged below the overflow water outlet pipe 660; the constant temperature water tank 620 is also in circulation communication with the circulation water tank 610 through the backflow device 700, the backflow device 700 comprises a water pump 710, a first connecting pipe 720 extending into the overflow water collecting water tank 670 is arranged on the water inlet of the water pump 710, and the first water outlet of the water pump 710 is communicated with the water inlet end of a second connecting pipe 730 with the outlet end extending into the constant temperature water tank 620.
When the thermometer 650 detects that there is a large change in the water temperature in the circulation water tank 610, the valve is opened, so that the water in the constant temperature water tank 620 enters the circulation water tank 610 from the lower part of the circulation water tank 610 through the water pipe 640, the water at the upper part of the circulation water tank 610 overflows through the overflow water outlet pipe 660 and falls into the overflow water collecting water tank 670, after the water in the overflow water collecting water tank 670 reaches a certain amount, the water pump 710 is opened, the water in the overflow water collecting water tank 670 flows back to the constant temperature water tank 620 through the first connecting pipe 720, the water pump 710 and the second connecting pipe 730, and the temperature control device 630 adjusts the water temperature in the constant temperature water tank 620, so that the water temperature is kept in the water temperature required by the experiment for standby. The overflow water outlet pipe 660 and the overflow water collecting tank 670 are arranged to collect water overflowed from the circulating water tank 610, ensure the clean and tidy of the experiment table and meet the use requirements of the experiment table. The arrangement of the reflux device 700 realizes the circulation communication of the constant temperature water tank 620 and the circulation water tank 610, realizes the recycling of water resources, and avoids the waste of water resources in the test.
As a specific embodiment of the static breaker expansion force testing device provided by the invention, referring to fig. 3, the water pump 710 is further provided with a second water outlet, the second water outlet is communicated with the water inlet end of the water injection pipe 200 through a third connecting pipe 740, and the third connecting pipe 740 is provided with a valve and a flowmeter 750.
When water injection is needed, the valve on the third connecting pipe 740 is opened, water in the overflow water collecting tank 670 is sequentially sent to the water injection pipe 200 through the first connecting pipe 720, the water pump 710 and the third connecting pipe 740 under the power of the water pump 710, and water injection operation is carried out. The third connecting pipe 740 is provided with the flowmeter 750, and the setting of the flowmeter 750 realizes the real-time monitoring of the water injection quantity, is convenient for the accurate recording and the subsequent analysis of the test process, and accords with the use requirement thereof.
As a specific embodiment of the static breaker expansion force testing device provided by the invention, referring to fig. 3, an upward protruding mounting seat 680 is provided at the center of the bottom plate of the circulation tank 610, the top end of the mounting seat 680 is higher than the top end of the water pipe 640, and the testing device main body 100 is disposed at the top of the mounting seat 680.
The setting of mount pad 680 makes the bottom of testing arrangement main part 100 be higher than the water inlet of circulation tank 610, and this setting makes testing arrangement main part 100 remain in the gentle region of temperature variation all the time, and then has avoided the impact force that the rivers that flow into circulation tank 610 by constant temperature water tank 620 carry to cause the interference to the test result, and this setting has further ensured the accuracy of this device test result.
The bottom of the circulation water tank 610 in this embodiment is provided with a tool box 800, and the setting of the tool box 800 is convenient for a user to store experimental tools, and this setting further improves the convenience of using the device.
As a specific embodiment of the static breaker expansion force testing device provided by the present invention, referring to fig. 1 and 4, a testing device main body 100 includes a reaction device 110 and a reaction frame 140 sleeved outside the reaction device 110; the reaction device 110 comprises a cylinder 111 and a piston 112 arranged at the top of the cylinder 111 and used for blocking the top opening of the cylinder 111, the cylinder 111 and the piston 112 enclose a reaction cavity, and the water outlet end of the water injection pipe 200 extends into the reaction cavity through the piston 112; the reaction frame 140 includes reaction beam 141 and sets up in reaction beam 141 below and with reaction beam 141 cooperation centre gripping reaction unit 110's base 142, reaction beam 141 and base 142 pass through spliced pole 143 and can dismantle the connection, reaction beam 141's below still is provided with pressure cell 130 and with reaction beam 141 cooperation centre gripping pressure cell 130's rigid bearing plate 144, reaction beam 141 and rigid bearing plate 144 pass through connecting piece 120 and can dismantle the connection, rigid bearing plate 144 sets up at the top of piston 112, barrel 111 sets up at the top of base 142.
The reaction device 110 is externally provided with a reaction frame 140, a piston 112 is arranged below the reaction frame 140, a pressure box 130 is additionally arranged between the reaction frame 140 and the piston 112, during testing, a static breaker is placed in the cylinder 111, the piston 112 is covered, the reaction frame 140 clamps the reaction device 110, water is injected into a reaction cavity, the static breaker is subjected to hydration reaction, the reaction frame 140 provides counter force and vertical expansion force generated when the static breaker is axially expanded during the reaction, and the pressure box 130 arranged below the reaction frame 140 can measure the axial expansion force of the static breaker. The water injection pipe 200 passes through the piston 112 and extends out of the reaction cavity, so that the liquid in the reaction cavity is prevented from overflowing out of the reaction cavity through the joint of the water injection pipe 200 and the testing device main body 100, and the smooth performance of the test is ensured.
The bolt 120 comprises a threaded rod 121 for connecting the piston 112 and the counter-force beam 141, a fixing nut 122 is arranged at the upper part of the threaded rod 121, a limit nut 123 for clamping the counter-force beam 141 and the rigid bearing plate 144 in cooperation with the fixing nut 122 is arranged at the lower part of the threaded rod 121, the fixing nut 122 is arranged above the counter-force beam 141, the limit nut 123 is arranged below the rigid bearing plate 144, the bottom end height of the rigid bearing plate 144 is limited by the limit nut 123 when in use, the counter-force beam 141 and the rigid bearing plate 144 are controlled by rotating the fixing nut 122 to clamp or loosen the pressure box 130, wherein the hole on the rigid bearing plate 144 is larger than the outer diameter of the connecting threaded rod 121, so that the rigid bearing plate 144 can freely transmit the axial pressure of a test piece to the pressure box 130; the amount of axial expansion force of the static breaker can be read in diameter by reading the pressure cell 130.
In this embodiment, the reaction device 110 is detachably connected with the reaction frame 140, so that an operator can change the diameter of the static breaker test piece by changing the specifications of the cylinder 111 and the piston 112 in the reaction device 110 during use. Meanwhile, in this embodiment, the connecting column 143 in the reaction frame 140 is a threaded rod in threaded connection with the reaction beam 141, and a nut for fixing the position of the reaction beam 141 or the base 142 is additionally arranged on the connecting column 143, so that the height between the reaction beam 141 and the base 142 can be flexibly adjusted according to the height of the main body 100 of the testing device during use, further the change of the length of the static breaker test piece is realized, the flexibility of the height adjustment of the device and the convenience of use are further improved, and the device can test the change of the expansion force of the same static breaker under different volumes.
In this embodiment, the bottom end of the overflow water outlet pipe 660 is lower than the top end of the cylinder 111, so that the phenomenon that water in the circulating water tank 610 enters the reaction chamber through the gap between the cylinder 111 and the piston 112 to influence the test result is avoided.
In this embodiment, the barrel 111 is detachably connected to the base 142 through the connecting member 150, which ensures the stability of the connection relationship between the barrel 111 and the reaction frame 140, and facilitates the movement of the device.
The connector 150 in this embodiment is a clip.
As a specific embodiment of the static breaker expansion force testing device provided by the invention, referring to fig. 1 and 3, a waterproof strain gauge 900 for testing the radial expansion force of the static breaker is arranged on the outer wall of the cylinder 111.
Conventional static breaker expansion force testing devices generally cannot measure the radial expansion force and the axial expansion force of the static breaker at the same time, and separate measurement often causes errors in measurement results due to differences in test conditions. In this embodiment, the waterproof strain gauge 900 is added on the outer wall of the cylinder 111, and when the horizontal force of the static breaker is measured, the radial inner force of the cylinder 111 can be determined by reading the radial strain of the cylinder 111, so as to obtain the radial expansion force of the static breaker.
Therefore, the device for testing the expansion force of the static crushing agent provided by the embodiment of the invention can measure the radial expansion force and the axial expansion force of the static crushing agent at one time through the reaction frame 140 and the waterproof strain gauge 900, and the measurement result is more accurate. During testing, the radial strain of the cylinder 111 is measured through the waterproof strain gauge 900, and then the radial expansion force of the static breaker can be obtained according to the thick-wall cylinder theory.
In this embodiment, the waterproof strain gauge 900 is bonded to the cylinder 111, and is convenient to install.
The static breaker expansion force testing device provided by the embodiment of the invention measures the static breaker expansion force under different experimental conditions, including different environmental temperatures, water injection in the expansion process, radial and/or axial expansion force of the static breaker under single or combined experimental conditions such as different pipe diameters or heights, and the like, and the testing conditions are more similar to the reaction conditions of the static breaker in actual engineering, so that the error between the testing result and the reaction result in the actual engineering is smaller, the device can more efficiently and accurately determine the expansion performance of the static breaker, and better service is provided for the actual engineering
As a specific embodiment of the static breaker expansion force testing device provided by the invention, referring to fig. 2, a water injection pipe 200 includes a water inlet portion 210 and at least one water injection portion 220 disposed in a reaction chamber and communicated with the water inlet portion 210, a water inlet end of the water inlet portion 210 extends out of the reaction chamber, a baffle 300 is disposed at a bottom of the water injection portion 220 at a bottom end, water injection holes 400 are disposed on a sidewall of the water injection portion 220, and a rubber sleeve 500 is sleeved outside the water injection portion 220.
When in use, the water injection pipes 200 with different numbers of water injection parts 220 can be flexibly selected according to the length of the reaction cavity, so that water injected through the water injection pipes 200 can quickly and uniformly fully react with the static breaking agent arranged in the reaction cavity. The water injection holes 400 are uniformly distributed on the sidewall of the water injection part 220, so that water is convenient to uniformly and rapidly contact and react with the static breaking agent arranged in different areas of the reaction chamber after being injected through the water injection part 220, and the accuracy of the test is further ensured.
In this embodiment, the water injection holes 400 are uniformly distributed on the side wall of the water injection part 220, and this arrangement ensures that the contact probability of the static breaker in different areas in the reaction chamber and the injected water flow is equivalent, so that the uniform and rapid reaction of the water flow and the static breaker after water injection is ensured, and the accuracy of the test result is further ensured.
In this embodiment, the number of the water injection parts 220 is at least two, and two adjacent water injection parts 220 are communicated through the connecting part 230, so that the water injection parts 220 are distributed in the reaction cavity in a dispersed manner, the water flow can be conveniently and rapidly and uniformly contacted with the static breaker in different areas in the reaction cavity, and the accuracy of the test result is further ensured. Meanwhile, a gap is formed between the adjacent water injection parts 220, so that the rubber sleeve 500 can be made of a shorter rubber sleeve, the water pressure can be used for expanding the rubber sleeve 500 during water injection, and the smooth water injection operation is ensured.
The invention also provides a static breaker expansion force testing method. The static breaker expansion force testing method comprises the following steps: placing the mixed static crushing agent into a reaction cavity of a testing device main body 100 in a static crushing agent expansion force testing device; testing the expansion force of the static breaking agent before water injection through the testing device main body 100, and recording the testing result; water is injected into the reaction cavity through the water injection pipe 200; the swelling force of the static breaker at the time of water injection and/or after water injection is tested by the test device body 100, and the test result is recorded.
Compared with the prior art, the static breaker expansion force testing device provided by the embodiment of the invention is used for adding water into the reaction cavity in the static breaker reaction process, so that the technical problem that the static breaker is easy to be sprayed out of the water injection hole in the static breaker reaction process in the traditional static breaker expansion force testing method is solved, the real-time test of the change condition of the axial expansion pressure of the static breaker after the expansion reaction condition (water injection quantity) is changed is realized, the change condition of the axial and/or radial expansion pressure of the static breaker when and/or after water is added can be measured, the testing process is closer to the reaction process of the static breaker in actual engineering, the testing result is more accurate, and the static breaker expansion force testing method provided by the embodiment of the invention better serves the actual engineering.
As a specific embodiment of the static breaker expansion force testing method provided by the invention, the static breaker expansion force testing device further comprises a temperature control system 600, wherein the temperature control system 600 comprises a circulating water tank 610 and a constant temperature water tank 620 communicated with the circulating water tank 610; before the step of placing the mixed static crushing agent into the reaction chamber of the testing device main body 100 in the static crushing agent expansion force testing device, a step of adjusting the testing environment temperature is further provided, and the step of adjusting the testing environment temperature comprises the following steps: placing the testing device body 100 into the circulation tank 610; the temperature of the water in the circulation tank 610 is adjusted according to the ambient temperature required for the test.
According to the method for testing the expansion force of the static breaker, the testing device main body 100 is placed in the circulating water tank 610 capable of adjusting the water temperature, and the water temperature of the circulating water tank 610 is controlled during reaction to adjust the testing environment temperature, so that the environment temperature of the testing device main body 100 is matched with the actual engineering temperature during testing, the expansion force testing result is matched with the actual result, and meanwhile disturbance of heat generated in the reaction process of the static breaker to the environment temperature can be avoided, and the testing result is more close to the actual result. In addition, the device can also reflect the influence of the environmental temperature change on the expansion force in the expansion process of the static crushing agent by controlling the change of the water temperature in the circulating water tank 610.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (5)
1. The static breaker expansion force testing device is characterized by comprising:
A testing device main body (100) provided with a reaction chamber inside;
the water injection pipe (200) is arranged outside the reaction cavity, the water outlet end extends into the reaction cavity, a baffle (300) for blocking the outlet of the water injection pipe (200) is arranged at the end part of the water outlet end, and a water injection hole (400) for communicating the inner cavity of the water injection pipe (200) with the reaction cavity is arranged on the side wall of the part of the water injection pipe (200) extending into the reaction cavity; and
The rubber sleeve (500) is sleeved on the outer side wall of the water injection pipe (200) and is used for blocking the outlet of the water injection hole (400);
The testing device main body (100) comprises a reaction device (110) and a reaction frame (140) sleeved outside the reaction device (110);
The reaction device (110) comprises a cylinder (111) and a piston (112) arranged at the top of the cylinder (111) and used for blocking the top opening of the cylinder (111), the cylinder (111) and the piston (112) enclose the reaction cavity, and the water outlet end of the water injection pipe (200) penetrates through the piston (112) and extends into the reaction cavity;
The reaction frame (140) comprises a reaction beam (141) and a base (142) arranged below the reaction beam (141) and matched with the reaction beam (141) to clamp the reaction device (110), the reaction beam (141) and the base (142) are detachably connected through a connecting column (143), a pressure box (130) and a rigid bearing plate (144) matched with the reaction beam (141) to clamp the pressure box (130) are further arranged below the reaction beam (141), the reaction beam (141) and the rigid bearing plate (144) are detachably connected through a connecting piece (120), the rigid bearing plate (144) is arranged at the top of the piston (112), and the cylinder (111) is arranged at the top of the base (142);
The water temperature control system (600) is further included, the temperature control system (600) comprises a circulating water tank (610) and a constant temperature water tank (620) communicated with the circulating water tank (610), the testing device main body (100) is arranged in the circulating water tank (610), a thermometer (650) for measuring water temperature is further arranged in the circulating water tank (610), a temperature control device (630) is arranged in the constant temperature water tank (620), a water pipe (640) communicated with the lower part of the circulating water tank (610) is arranged at the lower part of the constant temperature water tank (620), and a valve is arranged on the water pipe (640);
An overflow water outlet pipe (660) is arranged at the upper part of the circulating water tank (610), and the temperature control system (600) further comprises an overflow water collecting water tank (670) arranged below the overflow water outlet pipe (660);
The constant-temperature water tank (620) is also in circulating communication with the circulating water tank (610) through a reflux device (700), the reflux device (700) comprises a water pump (710), a water inlet of the water pump (710) is provided with a first connecting pipe (720) extending into the overflow water collecting water tank (670), and a first water outlet and an outlet end of the water pump (710) are communicated with a water inlet end of a second connecting pipe (730) extending into the constant-temperature water tank (620);
an installing seat (680) protruding upwards is arranged in the center of the bottom plate of the circulating water tank (610), the top end of the installing seat (680) is higher than the top end of the water pipe (640), and the testing device main body (100) is arranged at the top of the installing seat (680);
The outer wall of the cylinder body (111) is provided with a waterproof strain gauge (900) for testing the radial expansion force of the static breaker.
2. The static breaker expansion force testing device according to claim 1, wherein: the water pump (710) is further provided with a second water outlet, the second water outlet is communicated with the water inlet end of the water injection pipe (200) through a third connecting pipe (740), and the third connecting pipe (740) is provided with a valve and a flowmeter (750).
3. The static breaker expansion force testing apparatus according to any one of claims 1 to 2, wherein: the water injection pipe (200) comprises a water inlet part (210) and at least one water injection part (220) which is arranged in the reaction cavity and communicated with the water inlet part (210), the water inlet end of the water inlet part (210) extends out of the reaction cavity, the baffle (300) is arranged at the bottom of the water injection part (220) at the bottom end, the water injection hole (400) is formed in the side wall of the water injection part (220), and the rubber sleeve (500) is sleeved outside the water injection part (220).
4. The method for testing the swelling force of the static breaker is characterized by comprising the following steps of:
placing the mixed static crushing agent into a reaction cavity of a testing device main body (100) in a static crushing agent expansion force testing device;
Testing the expansion force of the static crushing agent before water injection through the testing device main body (100), and recording the testing result;
injecting water into the reaction cavity through a water injection pipe (200);
And testing the expansion force of the static breaking agent during and/or after water injection through the testing device main body (100), and recording the testing result.
5. The static breaker expansion force testing method according to claim 4, wherein: the static breaker expansion force testing device further comprises a temperature control system (600), wherein the temperature control system (600) comprises a circulating water tank (610) and a constant-temperature water tank (620) communicated with the circulating water tank (610);
The method is characterized in that a step of adjusting the temperature of a testing environment is further arranged before the step of placing the mixed static breaker into a reaction cavity of a testing device main body (100) in the static breaker expansion force testing device, and the step of adjusting the temperature of the testing environment comprises the following steps:
placing a testing device body (100) into the circulation tank (610);
The temperature of the water in the circulation tank (610) is adjusted according to the ambient temperature required for the test.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811582038.9A CN109459174B (en) | 2018-12-24 | 2018-12-24 | Static breaker expansion force testing device and testing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811582038.9A CN109459174B (en) | 2018-12-24 | 2018-12-24 | Static breaker expansion force testing device and testing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109459174A CN109459174A (en) | 2019-03-12 |
| CN109459174B true CN109459174B (en) | 2024-06-14 |
Family
ID=65614508
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811582038.9A Active CN109459174B (en) | 2018-12-24 | 2018-12-24 | Static breaker expansion force testing device and testing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109459174B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109900409A (en) * | 2019-04-04 | 2019-06-18 | 东北大学 | A kind of static breaking agent is radially expanded pressure test method |
| CN110333141B (en) * | 2019-07-10 | 2021-10-19 | 哈尔滨工程大学 | Blowout prevention testing device and method for testing hydration temperature and pressure of crushing agent |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003239270A (en) * | 2002-02-14 | 2003-08-27 | Mac:Kk | Freezing method and pipe material used for the same |
| CN104807382A (en) * | 2015-03-27 | 2015-07-29 | 湖南牧雨智能科技有限公司 | Efficient, safe and environment-friendly post-water-injection type static blasting method and water injection device using same |
| CN107037075A (en) * | 2017-05-31 | 2017-08-11 | 河南理工大学 | One kind expansion grout material solidification process expansion system safety testing device and method of testing |
| CN206725561U (en) * | 2017-05-25 | 2017-12-08 | 武汉大学 | A kind of easy expansion force measuring device |
| CN209400113U (en) * | 2018-12-24 | 2019-09-17 | 石家庄铁道大学 | Static breaking agent expands force test device |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH112032A (en) * | 1997-06-10 | 1999-01-06 | Toshin Kosan Kk | Static crushing method and liquid injector for use in it |
| US20090289492A1 (en) * | 2005-03-28 | 2009-11-26 | Sumitomo Osaka Cement Co., Ltd | Static Crushing Method, Aid for Static Crushing Used for the Crushing Method, and Filling Tool |
| CN102221601B (en) * | 2011-06-08 | 2013-09-04 | 上海大学 | Temperature-controlled type unsaturated soil consolidometer |
| CN103323164B (en) * | 2013-06-28 | 2014-12-10 | 东北大学 | Testing system for measuring static cracking agent swelling pressure and testing method thereof |
| CN104749343B (en) * | 2015-03-17 | 2016-05-25 | 中山大学 | A kind of axle of constant volume controllable temperature is soil expansion force tester radially |
| CN105928643B (en) * | 2016-04-26 | 2018-06-29 | 西南科技大学 | The two-way expansion force measuring instrument of bentonite |
| CN106285681B (en) * | 2016-11-11 | 2018-05-04 | 中国矿业大学 | A kind of hard coal seam top plate fracturing device and method |
| CN207650204U (en) * | 2017-06-09 | 2018-07-24 | 湖南科技大学 | A kind of test device of the expansive force and dilatancy of the lower expansive rock of drying and watering cycle effect |
| CN108444550B (en) * | 2018-06-15 | 2023-11-21 | 吕梁学院 | Static breaker expansion pressure and temperature testing integrated device and testing method thereof |
-
2018
- 2018-12-24 CN CN201811582038.9A patent/CN109459174B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003239270A (en) * | 2002-02-14 | 2003-08-27 | Mac:Kk | Freezing method and pipe material used for the same |
| CN104807382A (en) * | 2015-03-27 | 2015-07-29 | 湖南牧雨智能科技有限公司 | Efficient, safe and environment-friendly post-water-injection type static blasting method and water injection device using same |
| CN206725561U (en) * | 2017-05-25 | 2017-12-08 | 武汉大学 | A kind of easy expansion force measuring device |
| CN107037075A (en) * | 2017-05-31 | 2017-08-11 | 河南理工大学 | One kind expansion grout material solidification process expansion system safety testing device and method of testing |
| CN209400113U (en) * | 2018-12-24 | 2019-09-17 | 石家庄铁道大学 | Static breaking agent expands force test device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109459174A (en) | 2019-03-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10989702B2 (en) | Laboratory tracer experiment system for medium characteristic inversion of karst conduit | |
| CN109459174B (en) | Static breaker expansion force testing device and testing method | |
| CN111504856B (en) | Rock mass fracture gas-liquid two-phase seepage experimental device and method | |
| CN106769788B (en) | Rock-soil body pressurized water test device and test method | |
| RU2770639C1 (en) | Installation for testing the influence of the heat of hydration of cement or drilling mud on the stability of natural gas hydrate | |
| WO2022122017A1 (en) | High-temperature and high-pressure drilling fluid inhibition evaluation device and use method therefor | |
| CN103760085A (en) | Test device for measuring multiscale rock permeability and test method | |
| CN105403503A (en) | High-temperature corrosion and erosion testing device of bent pipe column of oil well pipe | |
| CN111665169A (en) | Automatic measuring device and measuring method for drilling fluid performance | |
| CN104406907A (en) | Monitoring device and monitoring method for dynamic corrosion diffusion of corrosion inhibitor of oil well | |
| CN204789262U (en) | Liquid filter element permeability detection device | |
| WO2024041145A1 (en) | Large-size true triaxial coal-rock mass multi-field seepage coupling system experimental device and method | |
| CN111624327B (en) | Karst pipeline slip casting shutoff test device | |
| CN110186814B (en) | Three-dimensional grouting diffusion mechanism test device and test method | |
| CN109751045B (en) | Overflow lost circulation monitoring method and device | |
| CN205138983U (en) | High temperature corrosion and erosion test device of oil well pipe bucking tubular column | |
| CN209400113U (en) | Static breaking agent expands force test device | |
| CN106680145B (en) | Liquid pipeline friction resistance measuring device and method using same | |
| CN217716922U (en) | Valve torque fatigue testing machine | |
| CN213657983U (en) | Flow aperture test device | |
| CN212301562U (en) | Wellhead crude oil water content analysis device | |
| CN112986126B (en) | Full-automatic mineral oil foam characteristic testing device | |
| CN103267836B (en) | Test device of core interporosity flow coefficient | |
| CN215985676U (en) | Drilling fluid fracturing experimental apparatus | |
| CN209400383U (en) | A kind of compressed water generation apparatus measuring Rockmass Permeabuity Coefficient |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant |