CN103645287B - A kind of device for carrying out laboratory slip casting test to test block - Google Patents

A kind of device for carrying out laboratory slip casting test to test block Download PDF

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Publication number
CN103645287B
CN103645287B CN201310737602.0A CN201310737602A CN103645287B CN 103645287 B CN103645287 B CN 103645287B CN 201310737602 A CN201310737602 A CN 201310737602A CN 103645287 B CN103645287 B CN 103645287B
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China
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test block
grouting
hole
cylinder body
test
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CN201310737602.0A
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Chinese (zh)
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CN103645287A (en
Inventor
杨仁树
郭东明
李学彬
张毅
薛华俊
侯键
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China University of Mining and Technology Beijing CUMTB
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China University of Mining and Technology Beijing CUMTB
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  • Sampling And Sample Adjustment (AREA)
  • Piles And Underground Anchors (AREA)

Abstract

Embodiments of the invention disclose a kind of device for carrying out laboratory slip casting test to test block, relate to a kind of servicing unit of slip casing by pressure technology, are convenient to determine the slip casting effect under predetermined grouting pressure.The described device for carrying out laboratory slip casting test to test block comprises: grouting device, for place test block article-holding device and the top of described grouting device arrange pressue device.The present invention is applicable to carry out laboratory slip casting test to test block.

Description

A kind of device for carrying out laboratory slip casting test to test block
Technical field
The present invention relates to a kind of servicing unit of slip casing by pressure technology, particularly relate to a kind of device for carrying out laboratory slip casting test to test block.
Background technology
One of main method that slurry injection technique is sinking shaft in mine construction, harness the river also is the important means of stratum improvement in underground works.Slip casing by pressure in slurry injection technique is because its good consolidation effect, equipment needed thereby are simple and the advantage such as simple operation is widely used.In slip casing by pressure process, the selecting properly of grouting pressure to slip casting effect and mortar depositing construction carry out smoothly most important.Choosing of grouting pressure is different because of engineering, and grouting pressure is excessive, and in slip casting process, rock mass or earth's surface easily occur crackle, and occur grout, causes unnecessary loss; Grouting pressure is too small, then affect the diffusion of slurries, causes not enriching the filling on rock mass or earth's surface.
Summary of the invention
Technical matters to be solved by this invention proposes a kind of device for carrying out laboratory slip casting test to test block, is convenient to determine the slip casting effect under predetermined grouting pressure.
For solving the problems of the technologies described above, a kind of device embodiment for carrying out laboratory slip casting test to test block of the present invention adopts following technical scheme:
For carrying out a device for laboratory slip casting test to test block, comprising: grouting device, for place test block article-holding device and the top of described grouting device arrange pressue device.
Preferably, described grouting device comprises cylinder body, and the top of described cylinder body is provided with pulp inlet, and described pulp inlet place is provided with into slurry valve; The bottom of described cylinder body is provided with grouting hole, and described grouting hole place is connected with grouting nozzle, and described test block is provided with the hole coordinated with described grouting nozzle; Described article-holding device is positioned at the below of described grouting device; Described article-holding device comprises shelf and passes the connecting rod of described bottom and shelf successively, and there is screw thread at the two ends of described connecting rod; The hold-down nut with described connecting rod threaded engagement is provided with in the upside of described bottom and the downside place of described shelf.
Preferably, described grouting device comprises cylinder body, and the top of described cylinder body is provided with pulp inlet, and described pulp inlet place is provided with into slurry valve; The middle part of described cylinder body is provided with fixed head, and described fixed head is provided with grouting hole, and described grouting hole place is connected with grouting nozzle, and described test block is provided with the hole coordinated with described grouting nozzle; Described article-holding device is located at the bottom of described cylinder body; Described article-holding device comprises the shelf coordinated with described cylinder body and the connecting rod passing described fixed head and shelf successively, and there is screw thread at the two ends of described connecting rod; The hold-down nut with described connecting rod threaded engagement is provided with at the downside place of the upside of described fixed head and described shelf; Described fixed head is provided with at least one through hole, or described inferior part of the cylinder block is provided with blow vent, and described blow vent place is provided with breather valve.
Preferably, described grouting device comprises cylinder body, and the top of described cylinder body is provided with pulp inlet, and described pulp inlet place is provided with into slurry valve; The bottom of described cylinder body is provided with grouting hole, and described grouting hole place is connected with grouting nozzle, and described test block is provided with the hole coordinated with described grouting nozzle; Described article-holding device is positioned at the below of described grouting device; Described article-holding device comprises closed container, and the top cover of described closed container is provided with the hole coordinated with described grouting nozzle; The side of described closed container is also provided with door, or described closed container be top cover or bottom is to take away.
Further, described cylinder base and the top cover of described closed container are provided with the corresponding through hole connected by connecting pipe, and described through hole has a pair at least; Or described closed container is provided with blow vent, the blow vent place of described closed container is provided with breather valve.
Further, the described device for carrying out laboratory slip casting test to test block also comprises the tensimeter be arranged on described cylinder body, and described tensimeter is provided with alarm, produces alerting signal when the pressure in described cylinder body reaches predetermined warning value; Described tensimeter is also provided with voice announcer, described voice announcer is connected with a control chip, pressure report value is preset with in described control chip, when the pressure in described cylinder body reaches described pressure report value, described voice announcer reports described pressure report value, or be preset with the time interval that pressure is reported in described control chip, described voice announcer automatically carries out force value at intervals according to the described time interval and reports.
Further, described cylinder body top is provided with grout outlet near bottom place, and described grout outlet place is provided with slurry-supplying valve; The upper and lower two ends of described test block are equipped with rubber blanket.
Further, the cooperation place in the hole in described grouting nozzle and described test block is provided with seal, and described seal comprises body, and one end of described body is enclosed within described grouting nozzle, and the other end of described body is inserted in the hole in described test block; The inwall that described body is enclosed within one end of described grouting nozzle is provided with three convex tendons; The length of each convex tendon is 1/2nd of the girth of the inwall of described body, and described three convex tendons are not in one plane; Described three convex tendons all do not overlap along the center line of the radial direction of described body; The projection of described three convex tendons on the bottom surface of described body is annulus; Described convex tendon is made up of rubber; The cross section that described body inserts the outside surface of the one end in the hole in described test block is polygon, and the cross section that the described hole in described test block and described body insert the one end in described hole is that polygonal outside surface matches; There is outside flange at the middle part of described body; Described body is made up of plastic cement.
Further, also comprise the protector be enclosed within described test block, described protector comprises protector body, and described protector body is covered with Reticular breathable hole; Described protector body does not have bottom surface, and the end face of described protector body is provided with the preformed hole corresponding with the hole in test block; On described protector body, at least one face is also provided with sheet rubber, described sheet rubber is covered with described Reticular breathable hole; Described protector body comprises metal is made.
Further, described pressue device comprises: the pressurizing piston coordinated with described cylinder body and the loading frame be located in described pressurizing piston, and described loading frame connects at least two pallets, places counterweight in described pallet; Or described pressue device comprises the pressurizing piston coordinated with described cylinder body and the hydraulic cylinder be located in described pressurizing piston.
The present invention is used for device test block being carried out to laboratory slip casting test, comprise: grouting device, for place test block article-holding device and the top of described grouting device arrange pressue device, like this, described test block is put in described article-holding device, load predetermined grouting pressure by described pressue device and by described grouting device, slip casting carried out to described test block, thus being convenient to determine the slip casting effect under described predetermined grouting pressure by CT scanner etc. subsequently.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the schematic diagram of a kind of embodiment of a kind of device for carrying out laboratory slip casting test to test block of the present invention;
Fig. 2 is the schematic diagram of the another kind of embodiment of a kind of device for carrying out laboratory slip casting test to test block of the present invention;
Fig. 3 is that the present invention is for carrying out the structural representation of the seal used in device one embodiment of laboratory slip casting test to test block;
Fig. 4 is the A-A sectional drawing of seal in Fig. 3;
Fig. 5 is the B-B sectional drawing of seal in Fig. 3;
Fig. 6 is that the present invention is for carrying out the structural representation of the test block protector used in device one embodiment of laboratory slip casting test to test block;
Fig. 7 be in Fig. 6 along A-A to cut-open view.
Embodiment
Below in conjunction with accompanying drawing, a kind of device for carrying out laboratory slip casting test to test block of the embodiment of the present invention is described in detail.
Should be clear and definite, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making other embodiments all obtained under creative work prerequisite, belong to the scope of protection of the invention.
Shown in Fig. 1, the embodiment of a kind of device for carrying out laboratory slip casting test to test block of the present invention, comprising: grouting device, for place test block article-holding device and the top of described grouting device arrange pressue device.
Because the present invention is used for device test block being carried out to laboratory slip casting test, comprise grouting device, for placing the article-holding device of test block and the pressue device in the setting of the top of described grouting device, like this, described test block is put in described article-holding device, load predetermined grouting pressure by described pressue device and by described grouting device, slip casting carried out to described test block, thus being convenient to determine the slip casting effect under described predetermined grouting pressure.
In the embodiment of the aforementioned device for carrying out laboratory slip casting test to test block, the described device for carrying out laboratory slip casting test to test block has various ways, preferably, described grouting device comprises cylinder body 1, the top of described cylinder body 1 is provided with pulp inlet 2, and described pulp inlet 2 place is provided with into slurry valve 3; The bottom of described cylinder body is provided with grouting hole 4, and described grouting hole 4 place is connected with grouting nozzle 5, and described test block is provided with the hole coordinated with described grouting nozzle 5; Described article-holding device is positioned at the below of described grouting device; Described article-holding device comprises shelf 6 and passes the connecting rod 7 of described bottom and shelf 6 successively, and there is screw thread at the two ends of described connecting rod 7; The hold-down nut 8 with described connecting rod 7 threaded engagement is provided with in the upside of described bottom and the downside place of described shelf 6, like this, can make described for carrying out the simple to operate of the device of laboratory slip casting test to test block, and described test block is placed on described shelf 6, contact with air around it, when carrying out slip casting to described test block, the gas be conducive in described test block internal void is discharged, and slip casting effect is better.
Preferably, described grouting device comprises cylinder body 1, and the top of described cylinder body 1 is provided with pulp inlet 2, and described pulp inlet 2 place is provided with into slurry valve 3; The middle part of described cylinder body 1 is provided with fixed head, and described fixed head is provided with grouting hole 4, and described grouting hole 4 place is connected with grouting nozzle 5, and described test block is provided with the hole coordinated with described grouting nozzle 5; Described article-holding device is located at the bottom of described cylinder body 1; Described article-holding device comprises the shelf 6 coordinated with described cylinder body and the connecting rod 7 passing described fixed head and shelf 6 successively, and there is screw thread at the two ends of described connecting rod 7; The hold-down nut 8 with described connecting rod 7 threaded engagement is provided with at the downside place of the upside of described fixed head and described shelf 6; Described fixed head is provided with at least one through hole, or described inferior part of the cylinder block is provided with blow vent, described blow vent place is provided with breather valve, like this, described device can apply confined pressure by described through hole or blow vent to described test block, that is, make the slurries with pressure in described cylinder body enter in described closed container by described through hole 17, liquid confined pressure is applied to described test block; Or by described blow vent to charged pressure gas in described closed container, gas confined pressure is applied to described test block, makes the slip casting effect under described grouting pressure truer.In addition, utilize the existing slurries with predetermined pressure of described grouting device to apply confined pressure to described test block, do not need additionally to arrange the medium applying confined pressure again, make total more simple, the applying of confined pressure is also more convenient.
Shown in Fig. 2, preferably, described grouting device comprises cylinder body 1, and the top of described cylinder body is provided with pulp inlet 2, and described pulp inlet 2 place is provided with into slurry valve 3; The bottom of described cylinder body 1 is provided with grouting hole 4, and described grouting hole 4 place is connected with grouting nozzle 5, and described test block is provided with the hole coordinated with described grouting nozzle 5; Described article-holding device is positioned at the below of described grouting device; Described article-holding device comprises closed container, and the top cover of described closed container is provided with the hole coordinated with described grouting nozzle; The side of described closed container is also provided with door 16, or or described closed container be top cover or bottom be to take away.
In the embodiment of the aforementioned device for carrying out laboratory slip casting test to test block, further, described cylinder base and the top cover of described closed container are provided with the corresponding through hole 17 connected by connecting pipe 18, and described through hole has a pair at least; Or described closed container is provided with blow vent, the blow vent place of described closed container is provided with breather valve.Make the slurries with pressure in described cylinder body enter in described closed container by described through hole 17, liquid confined pressure is applied to described test block; Or by described blow vent to charged pressure gas in described closed container, gas confined pressure is applied to described test block, described residing true environment can be simulated like this, make the slip casting effect under described grouting pressure truer.
Shown in Fig. 1 and Fig. 2, in the embodiment of the aforementioned device for carrying out laboratory slip casting test to test block, for the ease of observing described grouting pressure, further, the described device for carrying out laboratory slip casting test to test block also comprises the tensimeter 9 be arranged on described cylinder body 1, described tensimeter 9 is provided with alarm, when the pressure in described cylinder body 1 reaches predetermined warning value, produces alerting signal; Described tensimeter 9 is also provided with voice announcer, described voice announcer is connected with a control chip, pressure report value is preset with in described control chip, when the pressure in described cylinder body 1 reaches described pressure report value, described voice announcer reports described pressure report value, or be preset with the time interval that pressure is reported in described control chip, described voice announcer automatically carries out force value at intervals according to the described time interval and reports.
In the embodiment of the aforementioned device for carrying out laboratory slip casting test to test block, for the ease of release slurries, further, described cylinder body 1 top is provided with grout outlet 10 near bottom place, and described grout outlet place is provided with slurry-supplying valve 11; When placing test block, in order to relax impact, and test block compressed, the upper and lower two ends of described test block are equipped with rubber blanket 12.
Referring to shown in Fig. 3 to Fig. 5, in the embodiment of the aforementioned device for carrying out laboratory slip casting test to test block, in order to improve slip casting effect, when preventing slip casting slurries match with grouting nozzle in test block hole place overflow, further, the cooperation place in the hole in described grouting nozzle and described test block is provided with seal, and described seal comprises body, one end 21 of described body is enclosed within described grouting nozzle, and the other end 22 of described body is inserted in the hole in described test block; The inwall that described body is enclosed within one end 21 of described grouting nozzle is provided with three convex tendons 23; The length of each convex tendon 23 is 1/2nd of girths of the inwall of described body, and described three convex tendons 23 are not in one plane; Described three convex tendons 23 all do not overlap along the center line of the radial direction of described body; The projection of described three convex tendons 23 on the bottom surface of described body is annulus; Described convex tendon 23 is made up of rubber; The cross section that described body inserts the outside surface of the one end 22 in the hole in described test block is polygon, and the cross section that the described hole in described test block and described body insert the one end in described hole is that polygonal outside surface matches; There is outside flange 24 at the middle part of described body, described flange 24 is compressed between described test block upper surface and the bottom of described cylinder body 1, be convenient to described test block and coordinating between grouting nozzle tightr, namely the effect that flange simultaneously on described seal can also play described rubber blanket 12 relaxes impact, and test block is compressed; Described body is made up of plastic cement.。
Referring to shown in Fig. 6 to Fig. 7, in the embodiment of the aforementioned device for carrying out laboratory slip casting test to test block, further, also comprise the protector be enclosed within described test block, described protector comprises protector body 31, and described protector body 31 is covered with Reticular breathable hole 32; Described protector body 31 does not have bottom surface, and the end face of described protector body 31 is provided with the preformed hole 33 corresponding with the hole in test block; On described protector body, at least one face is also provided with sheet rubber 34, and described sheet rubber 34 is covered with described Reticular breathable hole 35; Described protector body comprises metal is made.Like this, described test block protector is enclosed within test block and a kind of constraint is formed to test block, avoid because the discharge of the gas in test block bursts test block not in time in slip casting process, and described sheet rubber can relax impact.
Shown in Fig. 1 and Fig. 2, in the embodiment of the aforementioned device for carrying out laboratory slip casting test to test block, in order to make the structure of described device simple and be convenient to control described grouting pressure, further, described pressue device comprises: the pressurizing piston 13 coordinated with described cylinder body 1 and the loading frame 14 be located in described pressurizing piston 13, described loading frame 14 connects at least two pallets 15, places counterweight in described pallet 15; Or described pressue device comprises the pressurizing piston 13 coordinated with described cylinder body 1 and the hydraulic cylinder be located in described pressurizing piston 13.
In the embodiment of the aforementioned device for carrying out laboratory slip casting test to test block, the means such as CT scanner or other x-ray fluoroscopy detection are adopted to observe the test block after described slip casting, analyze the slip casting effect under described predetermined grouting pressure, such as observe under described predetermined grouting pressure, whether space inner in test block is full of by slurry.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; the change that can expect easily or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claim.

Claims (8)

1., for carrying out a device for laboratory slip casting test to test block, it is characterized in that, comprising: grouting device, for place test block article-holding device and the top of described grouting device arrange pressue device; Wherein
Described grouting device comprises cylinder body, and the top of described cylinder body is provided with pulp inlet, and described pulp inlet place is provided with into slurry valve; The bottom of described cylinder body is provided with grouting hole, and described grouting hole place is connected with grouting nozzle, and described test block is provided with the hole coordinated with described grouting nozzle; Described article-holding device is positioned at the below of described grouting device, and described article-holding device comprises shelf and passes the connecting rod of described bottom and shelf successively, and there is screw thread at the two ends of described connecting rod; The hold-down nut with described connecting rod threaded engagement is provided with in the upside of described bottom and the downside place of described shelf; Or
Described grouting device comprises cylinder body, and the top of described cylinder body is provided with pulp inlet, and described pulp inlet place is provided with into slurry valve; The middle part of described cylinder body is provided with fixed head, and described fixed head is provided with grouting hole, and described grouting hole place is connected with grouting nozzle, and described test block is provided with the hole coordinated with described grouting nozzle; Described article-holding device is located at the bottom of described cylinder body; Described article-holding device comprises the shelf coordinated with described cylinder body and the connecting rod passing described fixed head and shelf successively, and there is screw thread at the two ends of described connecting rod; The hold-down nut with described connecting rod threaded engagement is provided with at the downside place of the upside of described fixed head and described shelf; On described fixed head, the position be positioned at outside described grouting hole is provided with at least one through hole, or described inferior part of the cylinder block is provided with blow vent, and described blow vent place is provided with breather valve; Or
Described grouting device comprises cylinder body, and the top of described cylinder body is provided with pulp inlet, and described pulp inlet place is provided with into slurry valve; The bottom of described cylinder body is provided with grouting hole, and described grouting hole place is connected with grouting nozzle, and described test block is provided with the hole coordinated with described grouting nozzle; Described article-holding device is positioned at the below of described grouting device; Described article-holding device comprises closed container, and the top cover of described closed container is provided with the hole coordinated with described grouting nozzle; The side of described closed container is also provided with door, or described closed container be top cover or bottom is to take away.
2. the device for carrying out laboratory slip casting test to test block according to claim 1, is characterized in that, bottom and the top cover of described closed container of described cylinder body are provided with the corresponding through hole connected by connecting pipe, and described through hole has a pair at least; Or
Described closed container is provided with blow vent, and the blow vent place of described closed container is provided with breather valve.
3. the device for carrying out laboratory slip casting test to test block according to claim 1 and 2, it is characterized in that, also comprise the tensimeter be arranged on described cylinder body, described tensimeter is provided with alarm, when the pressure in described cylinder body reaches predetermined warning value, produce alerting signal; Described tensimeter is also provided with voice announcer, described voice announcer is connected with a control chip, in described control chip, be preset with pressure report value, when the pressure in described cylinder body reaches described pressure report value, described voice announcer reports described pressure report value.
4. the device for carrying out laboratory slip casting test to test block according to claim 1 and 2, it is characterized in that, also comprise the tensimeter be arranged on described cylinder body, described tensimeter is provided with alarm, when the pressure in described cylinder body reaches predetermined warning value, produce alerting signal; Described tensimeter is also provided with voice announcer, described voice announcer is connected with a control chip, in described control chip, be preset with the time interval that pressure is reported, described voice announcer automatically carries out force value at intervals according to the described time interval and reports.
5. the device for carrying out laboratory slip casting test to test block according to claim 1 and 2, is characterized in that, described cylinder body top is provided with grout outlet near the bottom place of cylinder body, and described grout outlet place is provided with slurry-supplying valve;
The upper and lower two ends of described test block are equipped with rubber blanket.
6. the device for carrying out laboratory slip casting test to test block according to claim 1 and 2, it is characterized in that, the cooperation place in the hole in described grouting nozzle and described test block is provided with seal, described seal comprises body, one end of described body is enclosed within described grouting nozzle, and the other end of described body is inserted in the hole in described test block; The inwall that described body is enclosed within one end of described grouting nozzle is provided with three convex tendons; The length of each convex tendon is 1/2nd of the girth of the inwall of described body, and described three convex tendons are not in one plane; Described three convex tendons all do not overlap along the center line of the radial direction of described body; The projection of described three convex tendons on the bottom surface of described body is annulus; Described convex tendon is made up of rubber; The cross section that described body inserts the outside surface of the one end in the hole in described test block is polygon, and the cross section that the described hole in described test block and described body insert the one end in described hole is that polygonal outside surface matches; There is outside flange at the middle part of described body; Described body is made up of plastic cement.
7. the device for carrying out laboratory slip casting test to test block according to claim 1, is characterized in that, also comprise the protector be enclosed within described test block, described protector comprises protector body, and described protector body is covered with Reticular breathable hole; Described protector body does not have bottom surface, and the end face of described protector body is provided with the preformed hole corresponding with the hole in test block; On described protector body, at least one face is also provided with sheet rubber, described sheet rubber is covered with described Reticular breathable hole; Described protector body comprises metal is made.
8. the device for carrying out laboratory slip casting test to test block according to claim 1 and 2, it is characterized in that, described pressue device comprises: the pressurizing piston coordinated with described cylinder body and the loading frame be located in described pressurizing piston, described loading frame connects at least two pallets, places counterweight in described pallet;
Or described pressue device comprises the pressurizing piston coordinated with described cylinder body and the hydraulic cylinder be located in described pressurizing piston.
CN201310737602.0A 2013-12-26 2013-12-26 A kind of device for carrying out laboratory slip casting test to test block Expired - Fee Related CN103645287B (en)

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CN103869054B (en) * 2014-03-25 2017-01-04 安徽理工大学 Grouting test device with pressure and test method for rock sample
CN104865162B (en) * 2015-06-18 2017-11-10 厦门理工学院 A kind of automatic grouting material flowmeter and its application method
CN105181932B (en) * 2015-09-09 2017-03-22 中国矿业大学 Visualized grouting test device and test method of fractured rock mass
CN111855353A (en) * 2020-07-28 2020-10-30 浙江科技学院 MICP solidification calcareous sand cylinder sample preparation appearance

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