CN102839650A - Integral drilling and filling top-bottom high-pressure impact extrusion grouting system - Google Patents
Integral drilling and filling top-bottom high-pressure impact extrusion grouting system Download PDFInfo
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- CN102839650A CN102839650A CN201210348149XA CN201210348149A CN102839650A CN 102839650 A CN102839650 A CN 102839650A CN 201210348149X A CN201210348149X A CN 201210348149XA CN 201210348149 A CN201210348149 A CN 201210348149A CN 102839650 A CN102839650 A CN 102839650A
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Abstract
The invention discloses an integral drilling and filling top-bottom high-pressure impact extrusion grouting system, which is mainly applicable to the foundation reinforcement and anti-seepage grouting treatment on poor geologic bodies with loose and weak structures and the like. The grouting system comprises a drilling machine, a drilling rod and a high-pressure impact extrusion grouting head, wherein the drilling rod is connected onto a vertical shaft of the drilling machine, the high-pressure impact extrusion grouting head is connected onto the drilling rod and is used for hole drilling and grouting from top to bottom, a water faucet arranged at the upper part of the drilling rod connected onto the vertical shaft of the drilling machine is connected with a grouting pump through a drilling and filling slurry inlet pipe, the hole opening position of a drilling hole is provided with a hole opening return slurry collecting and settling device, and the return slurry after settlement treatment in the hole opening return slurry collecting and settling device is conveyed into a grouting slurry storage barrel through a drilling and filling slurry returning pipe via a mud pump for cyclic use. The grouting system has the advantages that the grouting full holes are continuous and uniform, the process operation is simple and convenient, and economy and environment protection are realized. The ideal grouting quality effect can be reached by adopting different hole array pitch hole distribution modes according to different engineering requirements.
Description
Technical field
The present invention relates to ground base enforcement and antiseepage and handle the grouting field; Be specially a kind of brill irritate one, from top to bottom, high pressure impact extrusion grouting system; Mainly be applicable to loosely organized, weakness etc. poorly plastid carry out underpin and antiseepage grouting treatment, can be widely used in fields such as water power, municipal administration, railway and highway bridge, harbour, airport to loose, weakness etc. poorly plastid carry out underpin and antiseepage grouting treatment.
Background technology
China is distributed with huge thick-layer calcirudite (K in the Cretaceous red bed bottom of building, plot, river bend, holder saliva power station
1-1), be complete～severely-weathered shape mostly, fragment, gravel composite construction, soft or hard density is uneven, and permeability rate 10-50Lu is medium permeable, belongs to IV～V class rock mass.One Chinese patent application CN102535472A discloses the method that packing, high pressure impact extrusion grouting are managed in a kind of hole, and this grouting method was divided into for two steps, adopts rig boring earlier, is in the milk by employing grouting method from bottom to top at the bottom of the hole then; When boring, adopt dense mud to carry out deslagging and borehole wall-protection.
Holder plot, river bend, saliva power station grouting research shows, receive Cretaceous red bed particularly bottom weathered pebble strata structure proterties restrict, adopt the conventional following problem of grouting system ubiquity:
1, pore-forming creeps into very easily (collapsing) and resolves into grit, and borehole wall is very unstable;
2, closure grouting part in aperture is easy to generate splitting and has been difficult to press;
3, grouting " level folder cake " the invalid perfusion problem that is prone to is given prominence to;
4, conventional curtain cloth pore structure is difficult to build qualified curtain.
For solving above-mentioned a series of problem; Taken the lead by the owner early stage; Design, universities and colleges, construction are united to participate in specially and have been carried out " high-pressure pulsating splitting compaction grouting and the plot application study in the Tuo Kou river bend thereof " work, and release " slurry sealing, high-pressure pulsating ", of the present invention novel grouting system from bottom to top.
Summary of the invention
Plot, river bend, the holder saliva power station Cretaceous red bed antiseepage grouting formation characteristics of building to China; The present invention aim to provide a kind of brill irritate one, from top to bottom, the impacting with high pressure grouting system; This grouting system is integrated boring, grouting, retaining wall, bores and adopts grouting liquid as flushing liquor when irritating, and unidirectional joint is installed on drill bit top and screwed union is formed helixseal high pressure impact extrusion grouting head; Through a helixseal high pressure impact extrusion grouting helixseal effect and the reciprocating type plunger grout pump of single-cylinder single-acting pulse effects; Realize full hole section brill filling one, high pressure impact extrusion grouting continuously from top to bottom, grouting liquid is taken into account deslagging and hole wall protection in the hole simultaneously.
For realizing above-mentioned purpose, the technical scheme that the present invention adopts is:
A kind of brill irritate one, from top to bottom, high pressure impact extrusion grouting system, be characterized in, comprise rig, be connected the high pressure impact extrusion grouting head that being used on the rig vertical shaft hole and be in the milk from top to bottom through drilling rod; The water tap on said rig vertical shaft drilling rod top links to each other with a grout pump through boring the filling inlet pipe; Be provided with aperture overfall collection, sedimentation device in the position, aperture of boring, the overfall in this aperture overfall collection, the sedimentation device after the precipitation process is irritated return pipe by slush pump through brill and is sent into the grouting slurry storing tank.
After overfall sent into the grouting slurry storing tank, overfall is stirred and the recycling of size performance adjustment back is used.
Below be further improved technical scheme of the present invention:
In order to improve the utilization rate of grouting liquid; At brill grout mouth aperture overfall collection, settler are installed; Said grouting slurry storing tank links to each other with said grout pump, and overfall recycles after adopting the slush pump commentaries on classics to be evacuated to stirring of grouting slurry storing tank and size performance adjustment after the precipitation process.
According to embodiments of the invention, the structure of said helixseal high pressure impact extrusion grouting head does, comprises screwed union, is connected the unidirectional joint of screwed union lower end, is connected the full section drill bit of unidirectional joint bottom; Said unidirectional joint is a kind ofly to go out structure on advancing under unidirectional, is provided with the unidirectional valve ball that the unidirectional impact extrusion of automatic control high pressure impact extrusion slurry pours into the stratum in this unidirectional joint; Said screwed union surface has helicla flute.
Certainly, the present invention can also adopt another kind of form of structure, and the structure of said helixseal high pressure impact extrusion grouting head does, comprises screwed union, is connected the unidirectional joint of screwed union upper end, is connected the full section drill bit of screwed union bottom; Said unidirectional joint is a kind ofly to go out structure on advancing under unidirectional, is provided with the unidirectional valve ball that the unidirectional impact extrusion of automatic control high pressure impact extrusion slurry pours into the stratum in this unidirectional joint; Said screwed union surface has helicla flute.
Send soft situation according to the stratum, the spiral external diameter of said screwed union is preferably than the big 2-8mm of external diameter of said full section drill bit, to guarantee the helixseal effect and to be in the milk pressure.
Above-mentioned helicla flute is preferably left-handed helicla flute, and when drilling rod rotated, helicla flute can play the effect that is similar to screw pump, strengthens grouting impact extrusion pressure.
Said screwed union preferably adopts 65Mn spring steel or 40Cr structural alloy steel, hard surfacing, HRC=45-55.
Said grout pump is preferably horizontal bar single-action reciprocating plunger grout pump.
A kind of brill disclosed by the invention irritate one, from top to bottom, high pressure impact extrusion grouting system, be the hole pipe packing that continues, the corresponding system of a kind of brand-new grouting worker method that proposes again after the supporting system of high pressure impact extrusion grouting process.Native system is integrated boring, grouting, retaining wall, adopts grouting liquid as flushing liquor during boring, and the helixseal joint is installed on drill bit top and unidirectional joint is formed helixseal high pressure impact extrusion grouting head; Cooperate the reciprocating type plunger grout pump of single-cylinder single-acting pulse crowding effect to produce grouting impact extrusion pressure, realize boring and irritate one, high pressure impact extrusion grouting is carried out on the stratum from top to bottom; Grouting liquid is taken into account deslagging and borehole wall-protection simultaneously, bores to irritate to combine with guard aperture, and technological operation is managed packing than the hole; High pressure impact extrusion grouting process is more easy; Particularly under the drilled grout hole pore-forming situation of difficult, effect is higher, and quality is guaranteed.
Compared with prior art; The invention has the beneficial effects as follows: the present invention is integrated boring, grouting, retaining wall; Adopt grouting liquid as flushing liquor when brill is irritated,, realize full hole section brill filling one through a helixseal high pressure impact extrusion grouting helixseal effect and the reciprocating type plunger grout pump of single-cylinder single-acting pulse effects; High pressure impact extrusion grouting continuously from top to bottom, grouting liquid take into account deslagging and hole wall protection in the hole simultaneously.Technological operation is easy, economic environmental protection.Can adopt different hole array pitch patterns according to different engine requests, reach desirable grouting quality effect.Can be widely used in fields such as water power, municipal administration, railway and highway bridge, harbour, airport to loose, weakness etc. poorly plastid carry out underpin and antiseepage grouting treatment.
Description of drawings
Fig. 1 be brill of the present invention irritate one, from top to bottom, high pressure impact extrusion grouting process sketch map.
Fig. 2 is a kind of helixseal high pressure impact extrusion grouting header structure figure of the present invention.
In the drawings:
1-high pressure impact extrusion grouting head; The 2-all-hydraulic drill; The 3-grout pump; 4-slurrying slurry storing tank;
The 5-slush pump; 6-aperture overfall is collected, sedimentation device; 7-bores and irritates inlet pipe;
8-bores and irritates return pipe; The 9-screwed union; The unidirectional joint of 10-; The full section drill bit of 11-.
The specific embodiment
A kind of brill irritate one, from top to bottom, high pressure impact extrusion grouting system; As shown in Figure 1; Comprise rig 2; Be connected helixseal high pressure impact extrusion grouting that drilling rod lower end on the rig 2 vertical shaft drilling rods is used for holing and be in the milk 1 from top to bottom, said helixseal high pressure impact extrusion grouting 1 drives revolution or up and down through the vertical shaft drilling rod, and a helixseal high pressure impact extrusion grouting top is connected with several drilling rods.Said rig 2 links to each other with a grout pump 3 through boring filling inlet pipe 7, and this grout pump 3 is preferably horizontal bar single-action reciprocating plunger grout pump; Be provided with aperture overfall collection, sedimentation device 6 in the position, aperture of boring, the overfall in this aperture overfall collection, the sedimentation device 6 after the precipitation process is irritated return pipe 8 by slush pump 5 through brill and is sent into the slurry storing tank 4 that is in the milk; Said grouting slurry storing tank 4 links to each other with said grout pump 3.
Below with bore to irritate one, from top to bottom, the high pressure impact extrusion grouting system method of being in the milk does further to describe to the course of work of the present invention, concrete steps are:
(1), confirms to bore grout, row's spacing through field trial according to formation condition and engineering design requirement thereof.
(2) bore to irritate one, from top to bottom, high pressure impact extrusion grouting process equipment and layout see accompanying drawing 2: bore irritate one, from top to bottom, high pressure impact extrusion grouting process sketch map.
(3) boring the filling construction should adopt the all-hydraulic power head rig also can adopt standard machinery transmission geological drilling rig; Grout pump should adopt the reciprocating type plunger grout pump of single-cylinder single-acting, and grouting pressure should be greater than 5.0MPa, and single impact extrusion amount should be greater than 1.0L, and single-acting pulse frequency 30 times/min-100/min is advisable.
(4) aperture is provided with and bore irritates overfall and collect and drilling cuttings precipitation process device, and the configuration overfall passes on slush pump, and the overfall that returns out as the aperture changes after precipitation process and is evacuated to the slurry storing tank that is in the milk and recycles;
(5) adopt Φ 50mm or Φ 54mm general geology drilling rod as drilling rod, the drilling rod internal diameter should be not less than 20mm, connects helixseal high pressure impact extrusion grouting head below the drilling rod.As shown in Figure 2, said helixseal high pressure impact extrusion grouting header structure is to comprise full section drill bit, unidirectional joint, screwed union.Said full section drill bit can adopt the geotechnical boring full section drill bit of alloy, composite sheet or diamond commonly used; Said unidirectional joint goes out structure for a kind of on advancing under unidirectional, and the effect of built-in steel ball weight is controlled the unidirectional impact extrusion of high pressure impact extrusion slurry automatically and poured into the stratum, and drilling cuttings pours in down a chimney and stops up helixseal high pressure impact extrusion grouting head in the hole that prevents to produce because of the pulse negative pressure; Said helixseal joint, joint surface processes left-handed helicla flute, when the brill filling is just going back to, can produce propulsive force to boring grouting liquid, forms a kind of screw pump and is pressed into effect, creates conditions for realizing brill filling impact extrusion pressure.Said screwed union, spiral external diameter are generally than the big 2-8mm of outside diameter; Said screwed union adopts 65Mn spring steel or 40Cr structural alloy steel, hard surfacing, HRC=45-55.
(6) bore to irritate one, from top to bottom, high pressure impact extrusion grouting according to a minute row, divide preface to encrypt principle, every round grouting can divide II preface or the construction of III preface.
(7) bore filling and adopt grouting liquid as drilling fluid, grouting liquid can adopt ordinary Portland cement or cement bentonite stable grout.Said stable slurry is that the solid mass ratio of water is 0.7:1-1:1, and slurries bleed rate is less than 5% ordinary Portland cement or cement clay slurry;
(8) bore filling speed combination formation condition and be controlled at 10-20cm/min, the grouting effective pressure is controlled at more than the 3.0MPa.Meet loose or built on stilts stratum and bore and irritate when being difficult to press, adopt underflow or cream slurry to pour into, rise carry out again after pressing above-mentioned brill irritate one, from top to bottom, the high pressure impact extrusion is in the milk.Meet special broken ground, can adopt and strengthen screwed union external diameter and lengthening screwed union length, guarantee the enforcement of impact extrusion high pressure.Said underflow is that the solid mass ratio of water is less than 0.5:1 ordinary Portland cement or cement clay slurry; Said cream slurry is ordinary Portland cement slurries or composite materials such as cement clay slurry admixture plasticizing agent, accelerating admixture, a kind of paste appearance slurry of formation.
(9) single hole bores and irritates and can once accomplish.After single hole grouting finishes, carry out the filling sealing of hole grouting hole in, when meeting in the hole artesian water, can adopt aperture screen slurry and close and starch processing.
(10) the grouting quality standard mainly according to current national and industry technology standard and engine request by design construction.Detection method for quality mainly generally adopts original state sampling, packer permeability test, physical prospecting test, mechanical test etc. according to the designing quality standard.
The content that the foregoing description is illustrated is to be understood that to these embodiment and only is used to be illustrated more clearly in the present invention; And be not used in the restriction scope of the present invention; After having read the present invention, those skilled in the art all fall within the application's accompanying claims institute restricted portion to the modification of the various equivalent form of values of the present invention.
Claims (9)
- One kind bore to irritate one, from top to bottom, high pressure impact extrusion grouting system, it is characterized in that, comprise rig (2), be connected the high pressure impact extrusion grouting head (1) that being used on rig (2) vertical shaft hole and be in the milk from top to bottom through drilling rod; The water tap on said rig (2) vertical shaft drilling rod top links to each other with a grout pump (3) through boring filling inlet pipe (7); Be provided with aperture overfall collection, sedimentation device (6) in the position, aperture of boring, the overfall after this aperture overfall collection, the interior precipitation process of sedimentation device (6) is sent into grouting slurry storing tank (4) by slush pump (5) through boring filling return pipe (8).
- According to the said brill of claim 1 irritate one, from top to bottom, high pressure impact extrusion grouting system, it is characterized in that said high pressure impact extrusion grouting head (1) is helixseal high pressure impact extrusion grouting head.
- According to the said brill of claim 2 irritate one, from top to bottom, high pressure impact extrusion grouting system; It is characterized in that; The structure of said helixseal high pressure impact extrusion grouting head does; Comprise screwed union (9), be connected the unidirectional joint (10) of screwed union (9) lower end, be connected the full section drill bit (11) of unidirectional joint (10) bottom; Said unidirectional joint (10) goes out structure for a kind of on advancing under unidirectional, is provided with the unidirectional valve ball that the unidirectional impact extrusion of automatic control high pressure impact extrusion slurry pours into the stratum in this unidirectional joint (10); Said screwed union surface has helicla flute.
- According to the said brill of claim 2 irritate one, from top to bottom, the method for high pressure impact extrusion grouting; It is characterized in that; The structure of said helixseal high pressure impact extrusion grouting head does; Comprise screwed union (9), be connected the unidirectional joint (10) of screwed union (9) upper end, be connected the full section drill bit (11) of screwed union (9) bottom; Said unidirectional joint (10) goes out structure for a kind of on advancing under unidirectional, is provided with the unidirectional valve ball that the unidirectional impact extrusion of automatic control high pressure impact extrusion slurry pours into the stratum in this unidirectional joint (10); Said screwed union surface has helicla flute.
- According to claim 3 or 4 said brills irritate one, from top to bottom, high pressure impact extrusion grouting system, it is characterized in that the spiral external diameter of said screwed union (9) is than the big 2-8mm of external diameter of said full section drill bit (11).
- According to claim 3 or 4 said brills irritate one, from top to bottom, high pressure impact extrusion grouting system, it is characterized in that said screwed union adopts 65Mn spring steel or 40Cr structural alloy steel, hard surfacing, HRC=45-55.
- According to claim 3 or 4 said brills irritate one, from top to bottom, high pressure impact extrusion grouting system, it is characterized in that said helicla flute is left-handed helicla flute.
- According to the said brill of claim 1 irritate one, from top to bottom, high pressure impact extrusion grouting system, it is characterized in that said grout pump (3) is a horizontal bar single-action reciprocating plunger grout pump.
- According to the said brill of claim 1 irritate one, from top to bottom, high pressure impact extrusion grouting system, it is characterized in that said grouting slurry storing tank (4) links to each other with said grout pump (3).
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| CN201210348149.XA CN102839650B (en) | 2012-09-19 | 2012-09-19 | Integral drilling and filling top-bottom high-pressure impact extrusion grouting system |
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| CN201210348149.XA CN102839650B (en) | 2012-09-19 | 2012-09-19 | Integral drilling and filling top-bottom high-pressure impact extrusion grouting system |
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| CN102839650B CN102839650B (en) | 2014-10-15 |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103174149A (en) * | 2013-03-28 | 2013-06-26 | 葛洲坝集团试验检测有限公司 | Dam body joint circulation grouting method |
| CN104790404A (en) * | 2015-05-05 | 2015-07-22 | 中国电建集团中南勘测设计研究院有限公司 | Dam foundation high-pressure grouting structure and method |
| CN105052676A (en) * | 2015-07-10 | 2015-11-18 | 中国矿业大学 | Integrated automatic drilling and irrigation device |
| CN106400785A (en) * | 2016-08-30 | 2017-02-15 | 中国水利水电第十工程局有限公司 | Construction method for grouting by adopting highly spraying, drilling and grouting integrated machine |
| CN107882036A (en) * | 2017-10-31 | 2018-04-06 | 中国电建集团华东勘测设计院有限公司 | The consolidation grouting system and grouting method of lid weight are put, had in lid refitting |
| CN109208580A (en) * | 2018-10-26 | 2019-01-15 | 中国电建集团中南勘测设计研究院有限公司 | A kind of orifice closure and bore filling device |
| CN110374083A (en) * | 2019-07-11 | 2019-10-25 | 长沙理工大学 | A kind of double pressure-controlled impact extrusion grouting system and its construction method |
| CN110566130A (en) * | 2019-10-12 | 2019-12-13 | 中国电建集团中南勘测设计研究院有限公司 | Drilling tool structure for cast-in-situ bored pile |
| CN112627167A (en) * | 2020-12-18 | 2021-04-09 | 杨鹏 | Roadbed underground grouting reinforcement equipment for road construction |
| CN112626992A (en) * | 2020-12-18 | 2021-04-09 | 杨鹏 | Grouting machine for road construction and operation method |
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| CN202767084U (en) * | 2012-09-19 | 2013-03-06 | 中国水电顾问集团中南勘测设计研究院 | Drilling-filling top-down high pressure impact extrusion grouting system |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103174149A (en) * | 2013-03-28 | 2013-06-26 | 葛洲坝集团试验检测有限公司 | Dam body joint circulation grouting method |
| CN103174149B (en) * | 2013-03-28 | 2015-12-09 | 葛洲坝集团试验检测有限公司 | A kind of dam body joint circulation grouting method |
| CN104790404A (en) * | 2015-05-05 | 2015-07-22 | 中国电建集团中南勘测设计研究院有限公司 | Dam foundation high-pressure grouting structure and method |
| CN105052676A (en) * | 2015-07-10 | 2015-11-18 | 中国矿业大学 | Integrated automatic drilling and irrigation device |
| CN105052676B (en) * | 2015-07-10 | 2017-08-01 | 中国矿业大学 | A kind of integral type automatic drill filling device |
| CN106400785A (en) * | 2016-08-30 | 2017-02-15 | 中国水利水电第十工程局有限公司 | Construction method for grouting by adopting highly spraying, drilling and grouting integrated machine |
| CN107882036A (en) * | 2017-10-31 | 2018-04-06 | 中国电建集团华东勘测设计院有限公司 | The consolidation grouting system and grouting method of lid weight are put, had in lid refitting |
| CN107882036B (en) * | 2017-10-31 | 2023-12-05 | 中国电建集团华东勘测设计研究院有限公司 | Cover weight device, consolidation grouting system with cover weight and grouting method |
| CN109208580A (en) * | 2018-10-26 | 2019-01-15 | 中国电建集团中南勘测设计研究院有限公司 | A kind of orifice closure and bore filling device |
| CN109208580B (en) * | 2018-10-26 | 2023-11-07 | 中国电建集团中南勘测设计研究院有限公司 | Orifice sealer and drill irrigation device |
| CN110374083A (en) * | 2019-07-11 | 2019-10-25 | 长沙理工大学 | A kind of double pressure-controlled impact extrusion grouting system and its construction method |
| CN110566130A (en) * | 2019-10-12 | 2019-12-13 | 中国电建集团中南勘测设计研究院有限公司 | Drilling tool structure for cast-in-situ bored pile |
| CN112627167A (en) * | 2020-12-18 | 2021-04-09 | 杨鹏 | Roadbed underground grouting reinforcement equipment for road construction |
| CN112626992A (en) * | 2020-12-18 | 2021-04-09 | 杨鹏 | Grouting machine for road construction and operation method |
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| CN102839650B (en) | 2014-10-15 |
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