CN202787268U - High-pressure jet grouting, drilling and jetting combined drilling tool - Google Patents
High-pressure jet grouting, drilling and jetting combined drilling tool Download PDFInfo
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- CN202787268U CN202787268U CN201220439231.9U CN201220439231U CN202787268U CN 202787268 U CN202787268 U CN 202787268U CN 201220439231 U CN201220439231 U CN 201220439231U CN 202787268 U CN202787268 U CN 202787268U
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- 238000005553 drilling Methods 0.000 title claims abstract description 82
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 57
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- 239000004568 cement Substances 0.000 claims abstract description 23
- 239000007921 spray Substances 0.000 claims abstract description 10
- 238000005507 spraying Methods 0.000 claims description 27
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Abstract
The utility model relates to a high-pressure jet grouting, drilling and jetting combined drilling tool which comprises a drilling grouting combined body, wherein the drilling grouting combined body comprises a hollow column body, wherein an upper cover plate is fixed at the top end of the column body, a lower cover plate is fixed at the bottom end of the column body, a plurality of side cutting heads are fixed at the periphery of the lower end surface of the lower cover plate, a central cutting head is fixed at the middle of the lower end surface of the lower cover plate, a cement slurry pipe, a high-pressure water pipe and a high-pressure air pipe are axially arranged in the column body, an outlet end of the cement slurry pipe is connected with a slurry inlet of a slurry distributor, the slurry distributor is fixed in the column body, and provided with a plurality of slurry outlets, each slurry outlet is connected with an inlet of a slurry spray pipe, and outlets of all the slurry spray pipes are positioned around the central cutting head on the lower cover plate. The provided high-pressure jet grouting, drilling and jetting combined drilling tool can improve the construction efficiency, reduce the construction cost, improve the construction quality, and ensure the efficient completion of construction operation in various geological conditions.
Description
Technical field
The utility model relates to a kind of high pressure jet grouting drilling hole, spraying way-type drilling unit.
Background technology
Existing high pressure jet grouting (hereinafter to be referred as the height spray) construction adopts first boring to descend playpipe again, process route is: rig is in place → drill hole of drilling machine → move rig → high spraying equipment in place → lower playpipe → high spraying construction, there is following problem in it in work progress:
1, rig pore-forming, the hole of easily collapsing in some stratum, playpipe are inserted the problem such as be obstructed, and work progress need be dispatched the rig cleaning bottom of hole, repeatedly non-productive work occurs in causing constructing, and progress is obstructed, productivity slowdown.
2, become the thinnest position of wall at the nozzle place in the high pressure swing spraying construction, because rig pore-creating size is limited, if increase minimum wall thickness, will add big swing angle, thereby the injection diameter is reduced, cause off-energy.
3, need the allocation project rig in the construction, it is many to answer this equipment and personnel to drop into, and working procedure is many, and work efficiency is low, and expense is high.
4, injector head can only be finished injection work, function singleness, and adaptive capacity is poor, does not possess the function of creeping into.
The utility model content
For solving the problems of the technologies described above, the utility model provides a kind of efficiency of construction that improves, reducing construction cost, improve construction quality, the high pressure jet grouting drilling hole, spraying way-type drilling unit that can under the various geological conditionss such as clay, loam, silt, powder fine sand, medium coarse sand, gravel, boulder bed, severely-weathered rock stratum, guarantee the quality and efficiently finish construction operation.
High pressure jet grouting drilling hole, spraying way-type drilling unit of the present utility model, comprise boring whitewashing assembly, described boring whitewashing assembly comprises hollow cylinder, the axis of cylinder vertically arranges, the top of cylinder is fixed with upper cover plate, the bottom of cylinder is fixed with lower cover, the periphery of the lower surface of lower cover is fixed with a plurality of side bit, the middle part of the lower surface of lower cover is fixed with the central cutting head, be provided with vertically the cement paste pipe in the described cylinder, high-pressure water pipe and high-pressure air pipe, the port of export of cement paste pipe links to each other with the slurry inlet of serous fluid distributor, serous fluid distributor is fixed in the cylinder, serous fluid distributor has the outlet of several slurries, and each slurries outlet links to each other with the import of a slurries playpipe respectively, the outlet of each slurries playpipe be positioned at described central cutting head on the described lower cover around;
The port of export of described high-pressure water pipe links to each other with the water inlet of water distributor, water distributor is fixed in the described cylinder, water distributor has several delivery ports, each delivery port links to each other with the water inlet of a water flow jet pipe respectively, the water outlet of each water flow jet pipe is provided with a nozzle, and nozzle is fixed on the sidewall of described cylinder by support;
The port of export of described high-pressure air pipe links to each other with the air inlet port of air-flow distributor, air-flow distributor is fixed in the described cylinder, air-flow distributor has several gas outlets, each gas outlet links to each other with the air inlet port of a jet-impingement pipe respectively, and the gas outlet of each jet-impingement pipe is around described nozzle setting.
High pressure jet grouting drilling hole, spraying way-type drilling unit of the present utility model, wherein said cylinder, the cross section of upper cover plate and lower cover is all rectangle, the quantity of described water flow jet pipe and described nozzle is 2,2 nozzles are symmetrical set, the aperture of nozzle is 1.7mm-1.9mm, nozzle is the streamline spray orifice, nozzle adopts carbide alloy to make, the quantity of the ring-type gas outlet of described jet-impingement pipe and air-flow playpipe is 2, the gas outlet of jet-impingement pipe is the annulus concentric with nozzle center, the width of annulus is 1.0mm-1.5mm, the annular radii of outer ring, jet-impingement pipe gas outlet is 4.0mm-5.5mm, the quantity of the outlet of described slurries playpipe and slurries playpipe is 2, the quantity of described side bit is 4, outwards put the bottom of 4 side bit, and the angle between the axis of 4 side bit and the axis of described cylinder is 20 °-45 °, and the side bit is separately positioned on four jiaos of described lower cover.
High pressure jet grouting drilling hole, spraying way-type drilling unit of the present utility model, wherein said upper cover plate adopts a plurality of connecting bolts to link to each other with the bottom of fittings body, the top of fittings body links to each other with the bottom of the bottom drilling rod that vertically arranges, the bottom drilling rod, a plurality of middle parts drilling rod and top drilling rod vertically are connected into the combined jet bar, the bottom drilling rod, adopt described fittings body to link to each other between a plurality of middle parts drilling rod and the top drilling rod, be equipped with vertically described cement paste pipe in the combined jet bar, described high-pressure water pipe and described high-pressure air pipe, described fittings body upper, be respectively equipped with on the lower surface for sealing cement paste pipe, the seal of high-pressure water pipe and high pressure gas pipeline and fittings body gap.
High pressure jet grouting drilling hole, spraying way-type drilling unit of the present utility model, the top of wherein said top drilling rod links to each other with the bottom of the turning cylinder that vertically arranges, be equipped with vertically described cement paste pipe, described high-pressure water pipe and described high-pressure air pipe in the turning cylinder, the periphery that is positioned at cement paste pipe, high-pressure water pipe and high-pressure air pipe lateral wall in the turning cylinder is provided with black box, the lateral wall of turning cylinder links to each other with the installation of pressure-bearing body by two bearings that can transmit axial force, the pressure-bearing body is installed on the hoisting mechanism, is provided with separation sleeve between the inner ring sleeve of two bearings.
High pressure jet grouting drilling hole, spraying way-type drilling unit of the present utility model, the top of wherein said turning cylinder adopts locking nut to link to each other with the bottom of aqueous vapor slurry combination valve.
High pressure jet grouting drilling hole, spraying way-type drilling unit of the present utility model, wherein said fittings body is cuboid, the bottom of the fittings body left and right sides is respectively equipped with a lower groove along fore-and-aft direction, and the top of both sides is respectively equipped with a upper groove along fore-and-aft direction before and after the fittings body.
Compared with prior art, the beneficial effects of the utility model are:
1, boring whitewashing assembly is arranged a plurality of side bit, is conducive to increase smear metal strength and scope, reduces the antidrag of grogs.The central cutting head had both possessed cutting function, also have the effect of boring location concurrently, form brill with a plurality of side bit and dial function, sand gravel in the stratum or cobble can be pushed outside the pore diameter range, therefore, this drill bit can not only adapt to the stratum such as clay, silty clay, silt, loam, powder fine sand, can also pass coarse sands layer, sand gravel, sandy gravel and severely-weathered rock stratum.
2, water, gas concentric co-axial ring-type spray-hole, the high pressure water hole of carbide alloy material and streamlined structure guarantees that the current linear state penetrates, simultaneously, High-Pressure Water is with one deck air film parcel outward, reduces the energy attenuation on the High-Pressure Water range length.
3, adopt distributor, so that the media such as the water of the boring whitewashing symmetrically arranged spray-hole of assembly and the balanced output of slurry outlet output, gas, slurry, thereby guarantee that formed high spray building material is even, reliable in quality.
When 4, using high pressure jet grouting drilling hole, spraying way-type drilling unit of the present utility model to carry out the high pressure jet grouting construction, carry out first pore-creating work, in the time of the pore-creating end-of-job, also finished the work of inserting of playpipe, be that pore-creating and playpipe insert be to carry out synchronously, previously septd two operation processes are merged into an operation, after finishing pore-creating work, and then just can implement high pressure jet grouting work.
5, because construction equipment leveling in place once, realizes that an operation is finished pore-creating and playpipe is inserted, can reduce the pore-forming deviation, avoid pore-creating and playpipe to insert the deviation accumulation that minute order construction produces.
6, under identical construction requirement and execution conditions, use prior art equipment, obtain pore-creating aperture 110mm～350mm, the minimum wall thickness 40mm～75mm of high pressure jet grouting pendulum spray wall; When using high pressure jet grouting drilling hole, spraying way-type drilling unit of the present utility model to carry out the high pressure jet grouting construction, the pore-creating aperture can reach 180mm～300mm, than prior art borehole enlargement 20%～100%, the minimum wall thickness of high pressure jet grouting pendulum spray wall can reach 80mm～150mm, and construction material does not need to increase, and minimum wall thickness increases by 100%.
Below in conjunction with drawings and Examples, the specific embodiment of the present utility model is described in further detail.Following examples are used for explanation the utility model, but are not used for limiting scope of the present utility model.
Description of drawings
Fig. 1 is the main pseudosection of the structural representation of the utility model high pressure jet grouting drilling hole, spraying way-type drilling unit;
Fig. 2 is the main pseudosection of amplification of the boring whitewashing combination body part of the utility model high pressure jet grouting drilling hole, spraying way-type drilling unit;
Fig. 3 is the lateral view of Fig. 2;
Fig. 4 is the main pseudosection of amplification of the fittings body of the utility model high pressure jet grouting drilling hole, spraying way-type drilling unit;
Fig. 5 is the lateral view of Fig. 4.
The specific embodiment
Such as Fig. 1, Fig. 2 and shown in Figure 3, the utility model high pressure jet grouting drilling hole, spraying way-type drilling unit, comprise boring whitewashing assembly, boring whitewashing assembly comprises hollow cylinder 23, the axis of cylinder 23 vertically arranges, the top of cylinder 23 is fixed with upper cover plate 22, the bottom of cylinder 23 is fixed with lower cover 31, the periphery of the lower surface of lower cover 31 is fixed with a plurality of side bit 34, the middle part of the lower surface of lower cover 31 is fixed with central cutting 35, be provided with vertically cement paste pipe 15 in the cylinder 23, high-pressure water pipe 16 and high-pressure air pipe 17, the port of export of cement paste pipe 15 links to each other with the slurry inlet of serous fluid distributor 27, serous fluid distributor 27 is fixed in the cylinder 23, serous fluid distributor 27 has 2 slurries outlets, the quantity of slurries outlets also can be 3 or 4 or more, and each slurries outlet links to each other with the import of a slurries playpipe 36 respectively, the outlet of each slurries playpipe 36 be positioned at central cutting 35 on the lower cover 31 around; Two slurries outlets are arranged symmetrically with in lower cover 31 bottoms, the sidewall of slurries outlet adopts the special, wear-resistant material to make, be embedded on the lower cover 31, cement grout exports by serous fluid distributor 27, slurries playpipe 36 balanced flow to slurries, the cement paste of output preparation, the space of filling cutting loss grogs.The cement grout output pressure is 0.2～1Mpa.
The port of export of high-pressure water pipe 16 links to each other with the water inlet of water distributor 26, water distributor 26 is fixed in the cylinder 23, water distributor 26 has 2 delivery ports, the quantity of delivery port also can be 3 or 4 or more, each delivery port links to each other with the water inlet of a water flow jet pipe 1 respectively, the water outlet of each water flow jet pipe 1 is provided with a nozzle 29, and nozzle 29 is fixed on the sidewall of cylinder 23 by support 27;
The port of export of high-pressure air pipe 17 links to each other with the air inlet port of air-flow distributor 24, air-flow distributor 24 is fixed in the cylinder 23, air-flow distributor 24 has 2 gas outlets, the quantity of gas outlet also can be 3 or 4 or more, each gas outlet links to each other with the air inlet port of a jet-impingement pipe 25 respectively, and the gas outlet of each jet-impingement pipe 25 arranges around nozzle 29.In use, the high speed and high pressure concentrated flow forms concentric co-axial radial type water flow in the parcel of high pressure draught, and soil body particle is impacted in cutting, compares with the current jet is singly arranged, and greatly improves the effect of utilizing of flow energy.Water under high pressure and high pressure gas be respectively through the output of separately distributor, so that the water of both sides delivery outlet, throughput are balanced.Normal operation, output High-Pressure Water pressure 25～38Mpa, high pressure draught pressure 0.6～0.8Mpa.The utility model high pressure jet grouting drilling hole, spraying way-type drilling unit can allow water, gas, slurry multimedium act on simultaneously, and high-velocity flow penetrates, and acts on simultaneously with bit, and boring whitewashing assembly is done the circumference rotation, can form aperture 0.9～1.2m; Boring whitewashing assembly is done swing by certain angle, and the range diameter reaches 1.1～1.5m; Spray boring whitewashing assembly location, penetrates the footpath and can reach 1.5～2.0m.
Above-mentioned cylinder 23, the cross section of upper cover plate 22 and lower cover 31 is all rectangle, 2 nozzles 29 are symmetrical set, the aperture of nozzle 29 is 1.7mm-1.9mm, nozzle 29 is the streamline spray orifice, nozzle 29 adopts carbide alloy to make, the gas outlet of jet-impingement pipe 25 is the annulus with nozzle 29 centres, the width of annulus is 1.0mm-1.5mm, the annular radii of outer ring, jet-impingement pipe 25 gas outlet is 4.0mm-5.5mm, the quantity of side bit 34 is 4, outwards put the bottom of 4 side bit 34, and the angle between the axis of the axis of 4 side bit 34 and cylinder 23 is 20 °-45 °, and side bit 34 is separately positioned on four jiaos of lower cover 31.In use, 4 side bit 34 and central cutting 35 forms five teeth and bores and dial function, 4 side bit 34 and central cutting 35 adopts high duty alloy instruments just to make, characteristics with shock resistance, wear-resisting, good toughness, inlay geology dedicated hard alloy or diamond on 4 side bit 34 and the central cutting 35,34 rotations of 4 side bit can cutting diameter 21～22cm scope soil, can pass sand gravel, sandy gravel, severely-weathered rock stratum.
Above-mentioned upper cover plate 22 adopts a plurality of connecting bolts 21 to link to each other with the bottom of fittings body 20, the top of fittings body 20 links to each other with the bottom of the bottom drilling rod 2 that vertically arranges, bottom drilling rod 2, a plurality of middle parts drilling rod and top drilling rod 14 vertically are connected into the combined jet bar, bottom drilling rod 2, adopt fittings body 20 to link to each other between a plurality of middle parts drilling rod and the top drilling rod 14, be equipped with vertically cement paste pipe 15 in the combined jet bar, high-pressure water pipe 16 and high-pressure air pipe 17, fittings body 20 upper, be respectively equipped with on the lower surface for sealing cement paste pipe 15, the seal 19 of high-pressure water pipe 16 and high pressure gas pipeline 17 and fittings body 20 gaps.
The top of above-mentioned top drilling rod 14 links to each other with the bottom of the turning cylinder 8 that vertically arranges, be equipped with vertically cement paste pipe 15 in the turning cylinder 8, high-pressure water pipe 16 and high-pressure air pipe 17, be positioned at cement paste pipe 15 in the turning cylinder 8, the periphery of high-pressure water pipe 16 and high-pressure air pipe 17 lateral walls is provided with black box 7, the lateral wall of turning cylinder 8 links to each other with 10 installations of pressure-bearing body by two bearings that can transmit axial force, pressure-bearing body 10 is installed on the hoisting mechanism 37, be provided with separation sleeve 9 between the inner ring sleeve of two bearings, the top of turning cylinder 8 adopts locking nut 8 to link to each other with the bottom of aqueous vapor slurry combination valve 5.In use, pressure-bearing body 10 is not done rotation and oscillating motion, and turning cylinder 8 moves with the combined jet bar in the work, by the connection of each parts, guarantees energy smooth delivery of power water under high pressure, gas, slurry in the situation of rotation.In boring work, below will accepting, transmits pressure-bearing body 10 cutting counter-force and the frictional resistance from the soil body that come up, owing to be provided with pressure-bearing body 10, can realize holing and insert the synchronization implementation function with playpipe, thereby in construction organization, can not need configuration and drop into engineering driller, corresponding minimizing constructor configuration, the decrease cost expenditure.
As shown in Figure 4 and Figure 5, fittings body 20 is cuboid, and the bottom of fittings body 20 left and right sides is respectively equipped with a lower groove along fore-and-aft direction, and the top of both sides, fittings body 20 front and back is respectively equipped with a upper groove along fore-and-aft direction.
Case history 1
Taiyuan, Fenhe River Urban Segment of Lhasa is administered the second stage of the project, build the rubber dam retaining in the river course, Fenhe River, top, stratum, two sides is plain fill, the middle and lower part is the flour sand layer, part dike pars infrasegmentalis is sand gravel layer, infiltration is serious, and the dyke foundation soil adopts the high pressure jet grouting engineering method to carry out foundation anti-seepage and processes high pressure jet grouting linear meter(lin.m.) engineering quantity 30,000 m.This project construction uses high pressure jet grouting drilling hole, spraying way-type drilling unit to finish the construction of preventing seepage with high-pressure sprayed concrete wall.Three construction equipments of project cumulative investment, if 2 engineering driller borings of every construction equipment configuration, this engineering accumulative total reduces by 6 engineering driller configurations, the minimizing personnel drop into 24 people, construction speed 36 days in advance, analysis-by-synthesis, 109 yuan of every meter high pressure jet grouting impervious wall construction costs, construction cost has been saved about 3,270,000 yuan altogether.
Case history 2
The Baihe, Nanyang accounts for greatly a regulating dam and rebuilds engineering, newly-built regulating dam is 24 hole open types, and 332 meters of lock chamber beam overalls need the medium coarse sand in the sluice foundation scope and sand pebble layer are carried out antiseepage and consolidation process, processing scheme adopts triple-pipe high pressure jet grouting grouting engineering method, engineering quantity 1.8 ten thousand m.
The construction beginning, adopt first boring postposition to enter the constructure scheme that playpipe is implemented high pressure jet grouting, because engineering construction position groundwater table is high, and be medium coarse sand, pebble layer, borehole wall-protection is main bugbear in the construction, and collapse hole, playpipe of pore-forming repeatedly occurs insert the problem of being obstructed, have to use the rig redrilling, occur repeatedly dispatching the problems such as rig, efficiency of construction is low, progress is slow in the engineering construction tissue.Difficult for solving pore-creating, the problems such as hole of collapsing, use the construction equipment with high pressure jet grouting drilling hole, spraying way-type drilling unit instead, and select the composite material cutting edge for medium coarse sand and sand-pebble layer, in the pore-creating process, have five teeth and bore the boring whitewashing assembly of dialling function, in boring, inject the slurries retaining wall in the time of rotary drilling, and with sand, gravel, cobble pushes outside the pore diameter range, also playpipe is inserted the design and construction position when finishing the pore-creating projected depth, switching-driving device, input meets the water of construction requirement, gas, the slurry medium begins to carry out the high pressure jet grouting construction.
Analysis-by-synthesis, every meter construction costs of high pressure jet grouting construction reduces by 116 yuan after replacing construction equipment and the scheme, has saved altogether 2,080,000 yuan of operating expenses.
The above only is preferred embodiment of the present utility model; should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model know-why; can also make some improvement and modification, these improve and modification also should be considered as protection domain of the present utility model.
Claims (6)
1. high pressure jet grouting drilling hole, spraying way-type drilling unit, comprise boring whitewashing assembly, it is characterized in that: described boring whitewashing assembly comprises hollow cylinder (23), the axis of cylinder (23) vertically arranges, the top of cylinder (23) is fixed with upper cover plate (22), the bottom of cylinder (23) is fixed with lower cover (31), the periphery of the lower surface of lower cover (31) is fixed with a plurality of side bit (34), the middle part of the lower surface of lower cover (31) is fixed with central cutting head (35), be provided with vertically cement paste pipe (15) in the described cylinder (23), high-pressure water pipe (16) and high-pressure air pipe (17), the port of export of cement paste pipe (15) links to each other with the slurry inlet of serous fluid distributor (30), serous fluid distributor (30) is fixed in the cylinder (23), serous fluid distributor (30) has several slurries outlets, the outlet of each slurries links to each other with the import of a slurries playpipe (36) respectively, the outlet of each slurries playpipe (36) be positioned at described central cutting head (35) on the described lower cover (31) around;
The port of export of described high-pressure water pipe (16) links to each other with the water inlet of water distributor (26), water distributor (26) is fixed in the described cylinder (23), water distributor (26) has several delivery ports, each delivery port links to each other with the water inlet of a water flow jet pipe (1) respectively, the water outlet of each water flow jet pipe (1) is provided with a nozzle (29), and nozzle (29) is fixed on the sidewall of described cylinder (23) by support (27);
The port of export of described high-pressure air pipe (17) links to each other with the air inlet port of air-flow distributor (24), air-flow distributor (24) is fixed in the described cylinder (23), air-flow distributor (24) has several gas outlets, each gas outlet links to each other with the air inlet port of a jet-impingement pipe (25) respectively, and the gas outlet of each jet-impingement pipe (25) arranges around described nozzle (29).
2. high pressure jet grouting drilling hole, spraying way-type drilling unit according to claim 1, it is characterized in that: described cylinder (23), the cross section of upper cover plate (22) and lower cover (31) is all rectangle, the quantity of described water flow jet pipe (1) and described nozzle (29) respectively is 2,2 nozzles (29) are symmetrical set, the aperture of nozzle (29) is 1.7mm-1.9mm, nozzle (29) is the streamline spray orifice, nozzle (29) adopts carbide alloy to make, the quantity of the ring-type gas outlet of described jet-impingement pipe (25) and air-flow playpipe (25) is 2, the gas outlet of jet-impingement pipe (25) is the annulus with nozzle (29) centres, the width of annulus is 1.0mm-1.5mm, the annular radii of jet-impingement pipe (25) outer ring, gas outlet is 4.0mm-5.5mm, the quantity of the outlet of described slurries playpipe (36) and slurries playpipe (36) is 2, the quantity of described side bit (34) is 4, outwards put the bottom of 4 side bit (34), angle between the axis of the axis of 4 side bit (34) and described cylinder (23) is 20 °-45 °, and side bit (34) is separately positioned on four jiaos of described lower cover (31).
3. high pressure jet grouting drilling hole, spraying way-type drilling unit according to claim 2, it is characterized in that: described upper cover plate (22) adopts a plurality of connecting bolts (21) to link to each other with the bottom of fittings body (20), the top of fittings body (20) links to each other with the bottom of the bottom drilling rod (2) that vertically arranges, bottom drilling rod (2), a plurality of middle parts drilling rod and top drilling rod (14) vertically are connected into the combined jet bar, bottom drilling rod (2), adopt described fittings body (20) to link to each other between a plurality of middle parts drilling rod and the top drilling rod (14), be equipped with vertically described cement paste pipe (15) in the combined jet bar, described high-pressure water pipe (16) and described high-pressure air pipe (17), described fittings body (20) upper, be respectively equipped with on the lower surface for sealing cement paste pipe (15), the seal (19) of high-pressure water pipe (16) and high pressure gas pipeline (17) and fittings body (20) gap.
4. high pressure jet grouting drilling hole, spraying way-type drilling unit according to claim 3, it is characterized in that: the top of described top drilling rod (14) links to each other with the bottom of the turning cylinder (8) that vertically arranges, be equipped with vertically described cement paste pipe (15) in the turning cylinder (8), described high-pressure water pipe (16) and described high-pressure air pipe (17), be positioned at cement paste pipe (15) in the turning cylinder (8), the periphery of high-pressure water pipe (16) and high-pressure air pipe (17) lateral wall is provided with black box (7), the lateral wall of turning cylinder (8) links to each other with pressure-bearing body (10) installation by two bearings that can transmit axial force, pressure-bearing body (10) is installed on the hoisting mechanism (37), is provided with separation sleeve (9) between the inner ring sleeve of two bearings.
5. high pressure jet grouting drilling hole, spraying way-type drilling unit according to claim 4 is characterized in that: the top of described turning cylinder (8) adopts locking nut (6) to link to each other with the bottom of aqueous vapor slurry combination valve (5).
6. high pressure jet grouting drilling hole, spraying way-type drilling unit according to claim 5, it is characterized in that: described fittings body (20) is cuboid, the bottom of fittings body (20) left and right sides is respectively equipped with a lower groove along fore-and-aft direction, and the top of both sides is respectively equipped with a upper groove along fore-and-aft direction before and after the fittings body (20).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220439231.9U CN202787268U (en) | 2012-08-31 | 2012-08-31 | High-pressure jet grouting, drilling and jetting combined drilling tool |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220439231.9U CN202787268U (en) | 2012-08-31 | 2012-08-31 | High-pressure jet grouting, drilling and jetting combined drilling tool |
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| CN202787268U true CN202787268U (en) | 2013-03-13 |
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| CN201220439231.9U Expired - Fee Related CN202787268U (en) | 2012-08-31 | 2012-08-31 | High-pressure jet grouting, drilling and jetting combined drilling tool |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103883332A (en) * | 2014-02-28 | 2014-06-25 | 北京市市政工程研究院 | Method and device for reinforcing fine sand layers |
| CN104563899A (en) * | 2015-01-08 | 2015-04-29 | 赵津梁 | Continuous drill pipe under pressure, swing-jet grouting device using drill pipe and swing-jet grouting construction method |
| CN112709537A (en) * | 2020-12-24 | 2021-04-27 | 中国十九冶集团有限公司 | Anchor hole drilling device |
-
2012
- 2012-08-31 CN CN201220439231.9U patent/CN202787268U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103883332A (en) * | 2014-02-28 | 2014-06-25 | 北京市市政工程研究院 | Method and device for reinforcing fine sand layers |
| CN103883332B (en) * | 2014-02-28 | 2016-08-17 | 北京市市政工程研究院 | Thin silt reinforcement means and device |
| CN104563899A (en) * | 2015-01-08 | 2015-04-29 | 赵津梁 | Continuous drill pipe under pressure, swing-jet grouting device using drill pipe and swing-jet grouting construction method |
| CN104563899B (en) * | 2015-01-08 | 2017-09-12 | 赵津梁 | Drilling rod and the pendulum spray apparatus and pendulum spraying construction method using the drilling rod with pressure of continuing |
| CN112709537A (en) * | 2020-12-24 | 2021-04-27 | 中国十九冶集团有限公司 | Anchor hole drilling device |
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