CN203606343U - Water-rich sand stratum high-pressure grouting testing device - Google Patents
Water-rich sand stratum high-pressure grouting testing device Download PDFInfo
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- CN203606343U CN203606343U CN201320762024.1U CN201320762024U CN203606343U CN 203606343 U CN203606343 U CN 203606343U CN 201320762024 U CN201320762024 U CN 201320762024U CN 203606343 U CN203606343 U CN 203606343U
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- 239000004576 sand Substances 0.000 title claims abstract description 94
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 44
- 238000012360 testing method Methods 0.000 title claims abstract description 25
- 239000011521 glass Substances 0.000 claims abstract description 3
- 239000000463 material Substances 0.000 claims abstract description 3
- 238000007569 slipcasting Methods 0.000 claims description 21
- 239000002002 slurry Substances 0.000 claims description 21
- 238000002347 injection Methods 0.000 claims description 5
- 239000007924 injection Substances 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 7
- 238000005516 engineering process Methods 0.000 abstract description 6
- 238000005065 mining Methods 0.000 abstract description 4
- 230000009471 action Effects 0.000 abstract description 2
- 238000010200 validation analysis Methods 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 abstract 3
- 239000004570 mortar (masonry) Substances 0.000 abstract 2
- 238000000034 method Methods 0.000 description 6
- 239000011435 rock Substances 0.000 description 6
- 238000012856 packing Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 229920006395 saturated elastomer Polymers 0.000 description 3
- 230000009172 bursting Effects 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 239000008398 formation water Substances 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
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- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The utility model belongs to the fields of mining engineering and safe technology, and in particular relates to a water-rich sand stratum high-pressure grouting testing device which is used for solving the problems of test and validation of action principle and effect of the prior art of high-pressure grouting to water-rich loose sand layer in the stratum underground or on a ground. The technical scheme adopted in the utility model is as follows: the water-rich sand stratum high-pressure grouting testing device comprises a sand cylinder and a water injecting tank, wherein the upper end of the sand cylinder is provided with an opening; the sand cylinder and the water injecting tank are connected by a water injecting pipe; a grouting pipe of which one end protrudes outside is arranged in the sand cylinder; a sand cylinder mortar outlet hole is arranged on the cylinder arm of the sand cylinder; a grouting pipe mortar outlet hole is arranged on the grouting pipe; the upper end of the sand cylinder is provided with a sealing film; the sealing film is closely connected to the upper arm end of the sand cylinder by a garter spring; a pressurizing pad is arranged on the sealing film; organic glass is adopted as the material of the sand cylinder.
Description
One, technical field:
The utility model belongs to mining engineering and safety technique field, is specifically related to a kind of water-rich sand layer high-pressure slip-casting test unit.
Two, background technology:
When shallow coal scam workplace is when by the thick rich yew loose sand layer region of thin basement rock, the characteristic that need to transform thick loose water-rich sand layer by any special measures is prevented the down-hole gushing water sand disaster of bursting, a kind of effectively technological means be exactly by down-hole to layer of sand mesohigh slip casting in certain limit on rock stratum, reach the object of the rich yew loose sand laminar flow dynamic characteristic of transformation.This technology is applied at the multiple fully-mechanized mining workings in illiteracy mining area, Shan, has successfully passed through thin basement rock Moderate and Thick Unconsolidated Formation water enrichment area, and the routed sand disaster of gushing water does not occur.This technology is existing the gushing water sand disaster of bursting to threaten the application of mine, not only for mine has been saved investment, and improved the rate of extraction of resource, reduced the impact of face ecologic environment and ground water regime over the ground.It is highly effective that multiple successful stories prove to adopt down-hole to transform the routed sand disaster of the next pre-Against Water Inrush of the thin basement rock top board of shallow buried coal seam physico mechanical characteristic to Moderate and Thick Unconsolidated Formation water enrichment area high-pressure slip-casting mode, and its technique effect and economic effect are very obvious.
High-pressure slip-casting can reach the object of the rich water loose sand characteristic of transformation, this technology application has precedence over theoretical research, but slurries are how to move in water-rich sand layer, and be finally the effect what form to reach the routed sand of control gushing water with, the result of study that current neither one is directly perceived and quantitative, and do not retrieve similar test method and device.Object of the present invention be just to provide a kind of can be at lab simulation the device to aquifer sand layer high-pressure slip-casting process, to explain to thin basement rock thick loose water-rich sand layer high-pressure slip-casting and reach the burst mechanism of effect of sand disaster of pre-Against Water Inrush by the means of test.
Three, utility model content:
The utility model is in order to solve the weak point in above-mentioned background technology, a kind of water-rich sand layer high-pressure slip-casting test unit is provided, its solve current by down-hole or ground test and the validation problem to rich yew loose sand floor height pressure grouting action principle in stratum and effect.
For achieving the above object, the technical solution adopted in the utility model is: a kind of water-rich sand layer high-pressure slip-casting test unit, comprise sand cylinder and water sink, described sand cylinder upper end open, sand cylinder is connected by water injection pipe with water sink, it is characterized in that: in described sand cylinder, be provided with the Grouting Pipe that stretch out one end, on the cylinder arm of sand cylinder, be provided with sand cylinder slurry outlet, in Grouting Pipe, be provided with Grouting Pipe slurry outlet, the upper end of described sand cylinder is provided with diaphragm seal, and diaphragm seal is closely connected with the upper arm end of sand cylinder by garter spring.
On described diaphragm seal, be provided with pressurization cushion block.
The material of described sand cylinder is organic glass.
Compared with prior art, advantage and the effect that the utlity model has are as follows: the utility model water-rich sand layer high-pressure slip-casting test unit can be realized at lab simulation to layer of sand mesohigh slip casting process, and test method and test unit can be for adjusting the indexs such as grouting pressure, concentration of slurry, layer of sand packing, layer of sand silt content, sand-grading.Wherein grouting pressure is controlled by grouting pump, concentration of slurry is by water cement ratio control, layer of sand packing realizes by configuring external load in pressurization on cushion block, and layer of sand silt content is recently controlled by sand and native quality, and sand-grading by first realizing after roughing sand classification in cooperation by volume.Add water fixed and grouting test process of layer of sand can clearly observe, off-test also can be opened adding cover clamp after slurries solidify, the loose sand not being cured is divested, disclose firming body, the form of observation firming body, analyze the characteristics of motion of slurries in layer of sand under different operating modes, and utilize the means prevention coal-face of high-pressure slip-casting that the principle of the routed sand disaster of gushing water occurs by the thick water-rich sand layer of thin basement rock region.
Four, accompanying drawing explanation:
Fig. 1 is high-pressure slip-casting test unit elevation drawing;
Fig. 2 is high-pressure slip-casting test unit longitudinal diagram;
Fig. 3 is high-pressure slip-casting test unit drawing in side sectional elevation;
Reference numeral: 1-grouting hole, 2-Grouting Pipe, 3-sand cylinder, 4-layer of sand, 5-sand cylinder slurry outlet, 6-diaphragm seal, 7-garter spring, 8-pressurization cushion block, 9-water injection pipe, 10-water sink, 11-Grouting Pipe slurry outlet.
Five, embodiment:
Below in conjunction with the drawings and specific embodiments, the utility model is elaborated:
Referring to Fig. 1-Fig. 3: what the utility model overall appearance was upper end open is cylindrical, sand cylinder 3 utilizes transparent grp to make, in sand cylinder 3, be provided with the Grouting Pipe 2 of stretching out one end, in Grouting Pipe 2, be provided with Grouting Pipe slurry outlet 11, sand cylinder 3 is connected by water injection pipe 9 with water sink 10, on the cylinder arm of sand cylinder 3, is provided with sand cylinder slurry outlet 5, sand cylinder 3 tops are sealed with diaphragm seal 6, and with garter spring 7 bandings, on diaphragm seal 6, place pressurization cushion block 8, grouting hole 1 place connects grouting equipment.
Test sand is being packed into after test unit, sand is carried out saturated in advance, after saturated completing, pressurize by pressurization cushion block, regulate the packing of sand, then carry out high-pressure slip-casting, slurries enter layer of sand by grouting hole, and can flow out whole test unit by slurry outlet, the track that slurries move in device and solidify after form be the physical effect of high-pressure slip-casting.Change the indexs such as on-load pressure on grouting pressure, head height, concentration of slurry, pressurization cushion block, layer of sand grain size, layer of sand silt content, can carry out the aquifer sand layer high-pressure slip-casting test in multiple situation.
The utility model using method: pack test sand in sand cylinder 3 into, record the height of layer of sand, then with diaphragm seal 6, sand cylinder 3 tops are sealed, and with diaphragm seal garter spring 7 bandings, on diaphragm seal 6, place pressurization cushion block 8, suitably pressurize by pressurization cushion block 8, record the height of layer of sand, make layer of sand 4 present the packing of design.In water sink 10, add water, water enters in layer of sand 4 by water injection pipe 9, treat that it is that layer of sand 4 is saturated that water flows out backsight by slurry outlet 5 and grouting hole 1, keep certain head, at grouting hole, 1 place connects grouting equipment, slurries enter in sand cylinder 3 by Grouting Pipe 2, enter layer of sand and enter 4, and flowed out by the slurry outlet 5 of sand cylinder surrounding through layer of sand 4 by Grouting Pipe slurry outlet 11.
Claims (3)
1. a water-rich sand layer high-pressure slip-casting test unit, comprise sand cylinder (3) and water sink (10), described sand cylinder (3) upper end open, sand cylinder (3) is connected by water injection pipe (9) with water sink (10), it is characterized in that: in described sand cylinder (3), be provided with the Grouting Pipe (2) of stretching out one end, on the cylinder arm of sand cylinder (3), be provided with sand cylinder slurry outlet (5), in Grouting Pipe (2), be provided with Grouting Pipe slurry outlet (11), the upper end of described sand cylinder (3) is provided with diaphragm seal (6), diaphragm seal (6) is closely connected with the upper arm end of sand cylinder (3) by garter spring (7).
2. a kind of water-rich sand layer high-pressure slip-casting test unit according to claim 1, is characterized in that: on described diaphragm seal (6), be provided with pressurization cushion block (8).
3. a kind of water-rich sand layer high-pressure slip-casting test unit according to claim 1 and 2, is characterized in that: the material of described sand cylinder (3) is organic glass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320762024.1U CN203606343U (en) | 2013-11-28 | 2013-11-28 | Water-rich sand stratum high-pressure grouting testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320762024.1U CN203606343U (en) | 2013-11-28 | 2013-11-28 | Water-rich sand stratum high-pressure grouting testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203606343U true CN203606343U (en) | 2014-05-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320762024.1U Expired - Lifetime CN203606343U (en) | 2013-11-28 | 2013-11-28 | Water-rich sand stratum high-pressure grouting testing device |
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| Country | Link |
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| CN (1) | CN203606343U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106771083A (en) * | 2017-01-18 | 2017-05-31 | 三峡大学 | Microorganism reinforces sand post provisions for grouting and its test method |
-
2013
- 2013-11-28 CN CN201320762024.1U patent/CN203606343U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106771083A (en) * | 2017-01-18 | 2017-05-31 | 三峡大学 | Microorganism reinforces sand post provisions for grouting and its test method |
| CN106771083B (en) * | 2017-01-18 | 2023-11-21 | 三峡大学 | Microorganism reinforced sand column grouting device and test method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210721 Address after: 300000 building 709, Minghai center, CCCC C Valley, pilot Free Trade Zone, Binhai New Area, Tianjin (Dongjiang Bonded Port Area) Patentee after: China Coal Science and Technology Co.,Ltd. Address before: No.82, Jinye 1st Road, high tech Industrial Development Zone, Xi'an, Shaanxi 710075 Patentee before: CCTEG Xi'an Research Institute |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140521 |