CN203452801U - Sectional pulse grouting system for tunnel construction - Google Patents
Sectional pulse grouting system for tunnel construction Download PDFInfo
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- CN203452801U CN203452801U CN201320439483.6U CN201320439483U CN203452801U CN 203452801 U CN203452801 U CN 203452801U CN 201320439483 U CN201320439483 U CN 201320439483U CN 203452801 U CN203452801 U CN 203452801U
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Abstract
The utility model discloses a sectional pulse grouting system for tunnel construction. The sectional pulse grouting system is characterized in that a grouting barrel, a low-pressure grouting pump, a sectional pulse valve and a high-pressure grouting pump are included and are communicated in sequence through grout inlet pipes; the other end of the high-pressure grouting pump is communicated with a grouting hose, the other end of the grouting hose is sealed in a guide pipe and is connected with a high-pressure grouting pipe, the high-pressure grouting pipe is arranged in the guide pipe, and grouting holes are formed in the pipe wall of the guide pipe. Through additional arrangement, grouted grout is sectioned, grouting is carried out in a pulse mode, the grout is compressed with instant high pressure to enter rock mass, on the premise of not damaging the original strength of the rock mass, the width of the cracks of the rock mass is enlarged, and the grouting effect is enhanced. A telescopic grout blocking plate is additionally arranged on the lower portion of a sectional piston, and the grout is prevented from blocking the telescopic effect of a spring. Pressure gauges are arranged on an outlet pipe of the low-pressure grouting pump and an outlet pipe of the high-pressure grouting pump, and the pressure of the outlet grout can be adjusted according to different grouting needs so that the sectional pulse grouting system can adapt to various construction environments.
Description
Technical field
The utility model relates to the auxiliary body field of tunnel machine, specifically refers to a kind of segmented pulse filling system for constructing tunnel.
Background technology
The construction of unfavorable geology hole section, comprises from shorter weak broken rock mass, fault belt and large area trickle of steady time or water burst location and adopts the method for slip casting to come water blockoff, reinforce adjoining rock, solves problems.Slip casting refers to by boring to having moisture crack, cavity or unsettled stratum injected water mud or other slurries, with the construction technology of water blockoff or strengthening stratum.Slurry injection technique can be divided into static pressure grouting and the large class of high pressure jet grouting two.But to the forms of motion of the mechanism of action of the soil body, geological conditions grouting pressure, slurries and alternative etc., slurry injection technique can be divided into osmotic grouting, fracture grouting, compaction grouting and injection slip casting four classes according to slurries again.The principle that grouting for water blocking is reinforced is with slurries, to replace the position of air in rock cranny, and discrete rock is become to an overall structure, thereby increases the character of each side.Therefore, the filling rate in rock mass is an important indicator that determines slip casting effect quality.
In slip casting process, thereby make slurry flow rate slow because pressure is lower, the serous granule that particle diameter is large runs into very soon gap length in flow process can be blocked by crack because resistance is greater than slurries pressure compared with little crack, rest in this crack, along with flowing of follow-up slurries, increasing this crack of large-size particles filling until crack stopped up completely.Although reached the object in filled opening space, also blocked the more short grained passage in space below that enters of particle diameter, slip casting work finishes in advance.These cracks of filling are the part crack close to from Grouting Pipe just, has seldom or do not have slurries in rock mass far away, will cause like this grout spreading range little, does not reach the slip casting effect of expection.
Utility model content
The purpose of this utility model is to provide the segmented pulse filling system for constructing tunnel that a kind of method is simple, can improve slip casting effect.
The utility model is achieved through the following technical solutions: a kind of segmented pulse filling system for constructing tunnel, comprise the slip casting bucket, low-pressure grouting pump, the segmentation pulse valve that by inlet pipe, are communicated with successively, and high-pressure injection pump, the described high-pressure injection pump other end is communicated with slip casting flexible pipe, slip casting flexible pipe is connected with high-pressure slip-casting pipe away from high-pressure injection pump one end, and junction is sealed in conduit, described duct wall is provided with this filling system of injected hole to be intended to by having set up segmentation pulse valve, by grouting serous fluid segmentation, mode slip casting with pulse, by instantaneous pressure, oppress slurries and enter rock mass, under the prerequisite of original intensity of not destroying rock mass, expand rock cranny gap length, and open closed crack, increase is by the passage of slurry flow, strengthen the osmotic effect of slurries, improve the pack completeness in space, strengthen slip casting effect.
Further, described segmentation pulse valve comprises valve body, and the pulp inlet and the grout outlet that is positioned at valve body opposite side lower end that are positioned at valve body one side upper end, in described valve body, be provided with segmentation piston, segmentation piston bottom is connected with spring, and spring is fixedly connected with valve interior wall bottom, and described segmentation piston can reach the height that maximum height is less than pulp inlet, and minimum constructive height is less than the height of grout outlet.The valve body of segmentation pulse valve is for receiving the slurries that slip casting low-lift pump pumps into, under slurries pressure, and the contraction that is under pressure of the spring of segmentation piston bottom, segmentation piston declines, and drops to grout outlet place, and outside high-pressure injection pump holds full slurries by valve inner and extracts out rapidly, slurries are extracted out, and segmentation piston pressure reduces, and lower springs is extended, segmentation piston rises, segmentation piston exceeds pulp inlet, stops exporting slurries, starts to hold slurry, so circulation repeatedly, makes slurries reach the effect of segmentation pulse.
Further, described segmentation piston bottom is also connected with flexible baffle, and described flexible baffle is fixedly connected with valve interior wall bottom, and flexible baffle is near grout outlet one side.This flexible baffle is accidentally to flow into segmentation piston bottom for fear of slurries, hinders the flexible effect of spring, thereby has influence on the normal operation of segmentation piston.
Further, at low-pressure grouting pump and high-pressure slip-casting pump discharge pipe place, be equipped with pressure meter.Can adjust the pressure of low-pressure grouting pump and high-pressure slip-casting pump discharge slurries according to different slip casting demands, adapt to various construction environments.
Further, described conduit mouth of pipe place is provided with stop grouting plug.The expansion of stop grouting plug can closely be attached on drill hole wall, and while having avoided slip casting, slurries are outside the return tap hole of boring.
Further, described injected hole is quincuncial arrangement on slip casting tube wall.For making Grouting Pipe evenly slip casting when the slip casting, hoisting grouting effect.
The utility model compared with prior art, has the following advantages and beneficial effect:
(1) the utility model is by setting up, make grouting serous fluid segmentation, with the mode slip casting of pulse, by instantaneous pressure, oppress slurries and enter rock mass, under the prerequisite of original intensity of not destroying rock mass, expand rock cranny gap length, and open closed crack, and increase the passage of slurry flow, strengthen the osmotic effect of slurries, improve the pack completeness in space, strengthen slip casting effect;
(2) the utility model, by setting up flexible baffle in segmentation piston bottom, avoids slurries accidentally to flow into segmentation piston bottom, hinders the flexible effect of spring, has improved the result of use of segmentation pulse valve, increases the service life;
(3) the utility model is by being equipped with pressure meter at low-pressure grouting pump and high-pressure slip-casting pump discharge pipe place, can be according to different slip casting demands, the pressure of adjusting low-pressure grouting pump and high-pressure slip-casting pump discharge slurries, adapts to various construction environments, has expanded the scope of application.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the utility model segmentation pulse valve internal construction schematic diagram.
Wherein: 1-slip casting bucket, 2-inlet pipe, 3-low-pressure grouting pump, 4-segmentation pulse valve, 41-valve body, 42-spring, 43-flexible baffle, 44-segmentation piston, 45-pulp inlet, 46-grout outlet, 5-high-pressure injection pump, 6-slip casting flexible pipe, 7-high-pressure slip-casting pipe, 8-stop grouting plug, 9-conduit, 10-injected hole, 11-pressure meter.
The specific embodiment
Below in conjunction with embodiment, the utility model is described in further detail, but embodiment of the present utility model is not limited to this.
Embodiment 1:
A kind of segmented pulse filling system for constructing tunnel of the present embodiment, as shown in Figure 1, mainly comprise the slip casting bucket 1, low-pressure grouting pump 3, the segmentation pulse valve 4 that by inlet pipe 2, are communicated with successively, and high-pressure injection pump 5, described high-pressure injection pump 5 other ends are communicated with slip casting flexible pipe 6, slip casting flexible pipe 6 is connected with high-pressure slip-casting pipe 7 away from high-pressure injection pump 5 one end, and junction is sealed in conduit 9, and described conduit 9 tube walls are provided with injected hole 10.Injection slurry in slip casting bucket 1 passes through low-pressure grouting pump 3 by inlet pipe 2, enter segmentation pulse valve 4, the segmentation burst process through segmentation pulse valve 4, is transported to high-pressure slip-casting pipe 7 by high-pressure injection pump 5 by slip casting flexible pipe 6, enter into conduit 9, and carry out slip casting.This filling system is intended to by having set up segmentation pulse valve 4, by grouting serous fluid segmentation, with the mode slip casting of pulse, by instantaneous pressure, oppress slurries and enter rock mass, under the prerequisite of original intensity of not destroying rock mass, expand rock cranny gap length, and open closed crack, increase the passage of slurry flow, strengthen the osmotic effect of slurries,, improve the pack completeness in space, strengthen slip casting effect.
Embodiment 2:
The present embodiment has further been set up the detailed structure of segmentation pulse valve on the basis of embodiment 1, as shown in Figure 2, segmentation pulse valve 4 comprises valve body 41, and the pulp inlet 45 and the grout outlet 46 that is positioned at valve body 41 opposite side lower ends that are positioned at valve body 41 1 side upper ends, in described valve body 1, be provided with segmentation piston 44, segmentation piston 44 bottoms are connected with spring 42, and spring 42 is fixedly connected with valve body 1 inwall bottom, described segmentation piston 44 can reach the height that maximum height is less than pulp inlet 45, and minimum constructive height is less than the height of grout outlet 46.The slurries that the valve body 41 of segmentation pulse valve 4 pumps into from pulp inlet 46 by slip casting low-lift pump 3, under slurries pressure, the contraction that is under pressure of the spring 42 of segmentation piston 44 bottoms, segmentation piston 44 declines, drop to grout outlet 46 places, outside high-pressure injection pump 7 holds full slurries by valve body 41 inside and extracts out rapidly, slurries are extracted out, segmentation piston 44 pressure reduce, lower springs 42 is extended, segmentation piston 44 rises, segmentation piston 44 exceeds pulp inlet, stop exporting slurries, start to hold slurry, so circulation repeatedly, make slurries reach the effect of segmentation pulse, the project organization of this segmentation pulse valve 4 is incessantly so a kind of, the structure that can reach same texts all can be chosen, here the segmentation pulse valve 4 of preferred this structure.Other parts of the present embodiment are identical with embodiment 1, repeat no more.
Embodiment 3:
On the basis of the present embodiment 2, further in segmentation piston 44 bottoms of segmentation pulse valve 4, be also connected with flexible baffle 43, described flexible baffle 43 is fixedly connected with valve body 41 inwall bottoms, and flexible baffle 43 is near grout outlet 46 1 sides.This flexible baffle 43 is in order to prevent that slurries from flowing into segmentation piston 44 bottoms accidentally, hinder the flexible effect of spring 42, thereby have influence on the normal operation of segmentation piston 44, the structure that can reach flexible baffle 43 effects of setting up is incessantly a kind of, preferably set up flexible baffle 43 here.Other parts of the present embodiment are same as the previously described embodiments, repeat no more.
Embodiment 4:
The present embodiment is provided with pressure meter 11 at low-pressure grouting pump 3 with high-pressure injection pump 4 outlet places respectively on the basis of embodiment 1 to 3, can be according to different slip casting demands, adjust the pressure of low-pressure grouting pump and high-pressure slip-casting pump discharge slurries, adapt to various construction environments, structure and the design that can reach same texts are incessantly a kind of, preferably this kind of design here.Other parts of the present embodiment are same as the previously described embodiments, repeat no more.
Embodiment 5:
The present embodiment is provided with stop grouting plug 8 at conduit 9 mouth of pipe places on the basis of embodiment 1 to 3, the expansion of stop grouting plug can closely be attached on drill hole wall, while having avoided slip casting, slurries are outside the return tap hole of boring, and structure and the design that can reach same texts are incessantly a kind of, preferably this kind of design here.Other parts of the present embodiment are same as the previously described embodiments, repeat no more.
Implement 6:
The present embodiment designs injected hole and be quincuncial arrangement on slip casting tube wall on the basis of embodiment 1 to 3, better evenly slip casting, and hoisting grouting effect, structure and the design that can reach same texts are incessantly a kind of, preferably this kind of design here.Other parts of the present embodiment are same as the previously described embodiments, repeat no more.
The above; it is only preferred embodiment of the present utility model; not the utility model is done to any pro forma restriction, any simple modification, equivalent variations that every foundation technical spirit of the present utility model is done above embodiment, within all falling into protection domain of the present utility model.
Claims (5)
1. the segmented pulse filling system for constructing tunnel, it is characterized in that: comprise the slip casting bucket (1) being communicated with successively by inlet pipe (2), low-pressure grouting pump (3), segmentation pulse valve (4), and high-pressure injection pump (5), described high-pressure injection pump (5) other end is communicated with slip casting flexible pipe (6), slip casting flexible pipe (6) is connected with high-pressure slip-casting pipe (7) away from high-pressure injection pump (5) one end, and junction is sealed in conduit (9), described high-pressure slip-casting pipe (7) is positioned at conduit (9), described conduit (9) tube wall is provided with injected hole (10).
2. a kind of segmented pulse filling system for constructing tunnel according to claim 1, it is characterized in that: described segmentation pulse valve (4) comprises valve body (41), and the pulp inlet (45) and the grout outlet (46) that is positioned at valve body (41) opposite side lower end that are positioned at valve body (41) one side upper ends, in described valve body (1), be provided with segmentation piston (44), segmentation piston (44) bottom is connected with spring (42), and spring (42) is fixedly connected with valve body (1) inwall bottom, described segmentation piston (44) can reach the height that maximum height is less than pulp inlet (45), minimum constructive height is less than the height of grout outlet (46).
3. a kind of segmented pulse filling system for constructing tunnel according to claim 2, it is characterized in that: described segmentation piston (44) bottom is also connected with flexible baffle (43), described flexible baffle (43) is fixedly connected with valve body (41) inwall bottom, and flexible baffle (43) is near grout outlet (46) one sides.
4. according to a kind of segmented pulse filling system for constructing tunnel described in claim 1 or 2 or 3, it is characterized in that: at low-pressure grouting pump (3), be equipped with pressure meter (11) with high-pressure injection pump (4) outlet place.
5. according to a kind of segmented pulse filling system for constructing tunnel described in claim 1 or 2 or 3, it is characterized in that: described conduit (9) mouth of pipe place is provided with stop grouting plug (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320439483.6U CN203452801U (en) | 2013-07-23 | 2013-07-23 | Sectional pulse grouting system for tunnel construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320439483.6U CN203452801U (en) | 2013-07-23 | 2013-07-23 | Sectional pulse grouting system for tunnel construction |
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| CN203452801U true CN203452801U (en) | 2014-02-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320439483.6U Expired - Fee Related CN203452801U (en) | 2013-07-23 | 2013-07-23 | Sectional pulse grouting system for tunnel construction |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106089252A (en) * | 2016-08-09 | 2016-11-09 | 北京矿冶研究总院 | Grouting reinforcement method for inhomogeneous loose bodies |
| CN106246208A (en) * | 2016-08-11 | 2016-12-21 | 中国水利水电第十四工程局有限公司 | A kind of construction method of underground chamber naked rock grouting to waterproof |
| CN108505512A (en) * | 2018-04-10 | 2018-09-07 | 山东交通学院 | A kind of city tunnel soft layer vault reinforcement means |
| CN111173537A (en) * | 2020-01-07 | 2020-05-19 | 中铁十八局集团有限公司 | Large-scale supplementary grouting method between duct piece and surrounding rock for tunnel construction by TBM method |
| CN113027484A (en) * | 2021-03-05 | 2021-06-25 | 宁波广安达建筑工程有限公司 | Water-curing grouting waterproof construction equipment and process |
| CN115467332A (en) * | 2022-08-23 | 2022-12-13 | 中煤第五建设有限公司 | Sand layer grouting device and grouting method thereof |
| CN115559687A (en) * | 2022-10-20 | 2023-01-03 | 中国矿业大学(北京) | Pulse type grouting hole sealing device and hole sealing method |
-
2013
- 2013-07-23 CN CN201320439483.6U patent/CN203452801U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106089252A (en) * | 2016-08-09 | 2016-11-09 | 北京矿冶研究总院 | Grouting reinforcement method for inhomogeneous loose bodies |
| CN106089252B (en) * | 2016-08-09 | 2018-10-16 | 北京矿冶研究总院 | Grouting reinforcement method for inhomogeneous loose bodies |
| CN106246208A (en) * | 2016-08-11 | 2016-12-21 | 中国水利水电第十四工程局有限公司 | A kind of construction method of underground chamber naked rock grouting to waterproof |
| CN106246208B (en) * | 2016-08-11 | 2018-05-04 | 中国水利水电第十四工程局有限公司 | A kind of construction method of the naked rock grouting to waterproof of underground chamber |
| CN108505512A (en) * | 2018-04-10 | 2018-09-07 | 山东交通学院 | A kind of city tunnel soft layer vault reinforcement means |
| CN111173537A (en) * | 2020-01-07 | 2020-05-19 | 中铁十八局集团有限公司 | Large-scale supplementary grouting method between duct piece and surrounding rock for tunnel construction by TBM method |
| CN111173537B (en) * | 2020-01-07 | 2022-05-03 | 中铁十八局集团有限公司 | Large-scale supplementary grouting method between duct piece and surrounding rock for tunnel construction by TBM method |
| CN113027484A (en) * | 2021-03-05 | 2021-06-25 | 宁波广安达建筑工程有限公司 | Water-curing grouting waterproof construction equipment and process |
| CN115467332A (en) * | 2022-08-23 | 2022-12-13 | 中煤第五建设有限公司 | Sand layer grouting device and grouting method thereof |
| CN115467332B (en) * | 2022-08-23 | 2023-09-12 | 中煤第五建设有限公司 | Sand layer grouting device and grouting method thereof |
| CN115559687A (en) * | 2022-10-20 | 2023-01-03 | 中国矿业大学(北京) | Pulse type grouting hole sealing device and hole sealing method |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140226 Termination date: 20150723 |
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| EXPY | Termination of patent right or utility model |