CN111172832B - Roadbed repairing equipment for road construction and construction method - Google Patents
Roadbed repairing equipment for road construction and construction method Download PDFInfo
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- CN111172832B CN111172832B CN202010013839.4A CN202010013839A CN111172832B CN 111172832 B CN111172832 B CN 111172832B CN 202010013839 A CN202010013839 A CN 202010013839A CN 111172832 B CN111172832 B CN 111172832B
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- 238000010276 construction Methods 0.000 title claims abstract description 25
- 239000002002 slurry Substances 0.000 claims abstract description 119
- 239000004568 cement Substances 0.000 claims abstract description 61
- 230000007246 mechanism Effects 0.000 claims abstract description 15
- 238000010521 absorption reaction Methods 0.000 claims abstract 5
- 239000011440 grout Substances 0.000 claims description 59
- 239000007788 liquid Substances 0.000 claims description 13
- 238000005507 spraying Methods 0.000 claims description 10
- 230000005540 biological transmission Effects 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 6
- 238000007569 slipcasting Methods 0.000 claims description 5
- 230000008439 repair process Effects 0.000 claims description 3
- 238000005406 washing Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 239000002689 soil Substances 0.000 abstract description 21
- 230000003014 reinforcing effect Effects 0.000 abstract description 4
- 239000007921 spray Substances 0.000 description 17
- 230000000694 effects Effects 0.000 description 10
- 238000002347 injection Methods 0.000 description 7
- 239000007924 injection Substances 0.000 description 7
- 239000003054 catalyst Substances 0.000 description 5
- 230000008859 change Effects 0.000 description 5
- 238000003756 stirring Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C3/00—Foundations for pavings
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C3/00—Foundations for pavings
- E01C3/04—Foundations produced by soil stabilisation
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
- E02D5/36—Concrete or concrete-like piles cast in position ; Apparatus for making same making without use of mouldpipes or other moulds
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Architecture (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- General Engineering & Computer Science (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The invention relates to roadbed repairing equipment for road construction and a construction method thereof, and the roadbed repairing equipment comprises a limiting frame, an absorption pump, an air compressor, a slurry pipe, an inserting sleeve and a rotating mechanism, wherein the limiting frame is of a semi-annular structure, the slurry pipe is distributed at the inner end of the limiting frame, threaded holes are symmetrically formed in the outer side surface of the lower end of the slurry pipe, the upper end of the inserting sleeve is sleeved on the lower end of the slurry pipe, round holes are formed in positions, corresponding to the threaded holes of the slurry pipe, on the inserting sleeve, the inserting sleeve is locked on the threaded holes of the lower end of the slurry pipe through countersunk head bolts, the rotating mechanism is installed in the upper end of the slurry pipe, the absorption pump is installed on the limiting frame at the right end of the slurry pipe, the air compressor is located. The invention can solve the problems existing when the existing soft soil roadbed is reinforced by grouting with cement paste: when the cement paste is poured into the pile driving hole, the pressure is small, so that the seepage force of the cement paste is poor, and the reinforcing range of the outer side of the pile driving hole of the soft soil roadbed is small.
Description
Technical Field
The invention relates to the technical field of road repair, in particular to roadbed repair equipment for road construction and a construction method.
Background
The roadbed is the foundation of the road surface, the main function of the roadbed is to provide necessary conditions for driving operation, the roadbed can bear static load and dynamic load of traffic load, and simultaneously, the load is transmitted and diffused to the deep part of the roadbed, so that the construction quality of the roadbed directly influences the service life of the road.
The roadbed is a geotechnical structure formed by excavation or filling, when the soil quality of the roadbed is soft soil, the roadbed is not treated, the roadbed can crack or even shear damage of a road caused by excessive settlement, so that the soft soil roadbed needs to be reinforced, the most commonly used reinforcing method of the soft soil roadbed is to bury a grouting pipe on the roadbed by using a pile driver, and then fill cement slurry into the grouting pipe through a grouting pump, so that the soft soil roadbed around a pile hole is reinforced, then the grouting pipe is taken out, and the pile hole is filled with the cement slurry, and the problems existing when the soft soil roadbed is reinforced by adopting a cement slurry filling mode are as follows:
1. when the cement slurry is poured into the pile driving hole, the pressure is low, so that the permeability of the cement slurry is poor, and the reinforcing range of the outer side of the pile driving hole of the soft soil roadbed is small;
2. when the grouting pipe is inserted into the soft soil roadbed, the inclination can occur, and the grouting of the pile holes of the soft soil roadbed is not uniform, so that the reinforcing effect is influenced.
Disclosure of Invention
In order to solve the problems, the invention provides roadbed repairing equipment for road construction, which comprises a limiting frame, a suction pump, an air compressor, slurry pipes, plug bushes and a rotating mechanism, wherein the limiting frame is of a semi-annular structure, the front side and the rear side of the inner end of the limiting frame are respectively provided with a locking connecting plate, the middle part of each locking connecting plate is provided with a round hole, the locking connecting plates on the two limiting frames are locked through bolt nuts, the slurry pipes are distributed at the inner end of the limiting frame and are of a hollow cylindrical structure, the side wall of the lower end of each slurry pipe is provided with a jet hole, the outer side surface of the lower end of each slurry pipe is symmetrically provided with threaded holes, the upper end of each plug bush is sleeved on the lower end of each slurry pipe, the positions of the plug bushes, which correspond to the threaded holes of the slurry pipes, are respectively provided with the round holes, the plug bushes are locked on the threaded holes at the lower ends, the invention is firstly placed at a proper position on a soft soil foundation, the limiting frame is locked and placed above a road foundation, then an inserting sleeve is locked on the lower end of the grout pipe, the structure consisting of the grout pipe and the inserting sleeve is erected in an annular structure consisting of two limiting frames, the grout pipe and the inserting sleeve are driven into the foundation through an external pile driver, so that the upper part of the grout pipe is positioned on the foundation, then the suction end of the suction pump is placed in the grout, the grout can be conveyed into the grout pipe through a conveying pipe on the suction pump, and the grout in the grout pipe can be uniformly sprayed out from the grout pipe under the action of a rotating mechanism, the air compressor can pressurize the cement paste in the grout pipe through the transmission pipe, so that the cement paste can be sprayed into the foundation, then the pile driver slowly lifts the grout pipe, the suction pump is controlled to continuously spray the cement paste in the pile driving hole, and the pile driving hole after pile driving is filled.
The middle part of every spacing frame on all be provided with a spout, all be connected with the lower extreme of sliding body through sliding fit's mode on every spout on the spacing frame, install the support cover of arc structure on the upper end medial surface of sliding body, the middle part lateral surface of sliding body is connected with sliding spring's inner, sliding spring's outer end is installed on the outer end top of spacing frame through spring even board, during concrete work, the support cover can play certain spacing effect when thick liquid pipe is driven downwards for the thick liquid pipe is in vertical state.
The rotating mechanism comprises a rotating sleeve, rotating guide blocks, a rotating push plate and a guide plate, the rotating sleeve is positioned in the upper end of the pulp pipe, the upper end and the lower end of the rotating sleeve are respectively provided with an annular groove, a group of rotating guide blocks are respectively arranged at the positions, corresponding to each annular groove on the rotating sleeve, of the pulp pipe, the rotating guide blocks are symmetrically distributed in the annular grooves of the rotating sleeve, the rotating guide blocks are of arc structures, the upper side surface, the lower side surface and the inner side surface of the inner end of each rotating guide block are respectively provided with a ball, and the balls arranged on the rotating guide blocks are in contact with the side walls of the annular grooves;
evenly install on the top of rotating the cover and rotate the push pedal, the top of rotating the cover distributes and has the deflector, the deflector is installed on the inner wall of thick liquid pipe, the deflector is the annular structure of inner downward sloping, concrete during operation, slewing mechanism can rotate the direction to grout, make the grout can be even convey the lower extreme of thick liquid pipe and from the jet orifice blowout of thick liquid pipe, the effect of location is played to the rotating sleeve to the rotation guide block, the rotation guide block can also cooperate and rotate the cover and rotate, the deflector can lead to grout, prevent that grout from transmitting to rotate the cover and rotate between the guide block.
As a preferred technical scheme of the invention, the right side wall of the upper end of the slurry pipe is connected with the slurry pipe, the air guide pipe is positioned right above the slurry pipe, the air guide pipe is arranged on the right side wall of the slurry pipe, the outer end of the slurry pipe is connected with the transmission pipe of the suction pump, and the air guide pipe is connected with the transmission pipe of the air compressor.
As a preferred technical scheme of the invention, the inner end of the air duct is provided with a pushing pipe which is of an L-shaped structure, the lower end of the pushing pipe penetrates through the guide plate and is arranged in a backward inclining manner, the lower end of the middle part of the air duct is connected with the top of the inner end of the grouting pipe through a pressurizing pipe, the lower end of the pressurizing pipe is arranged in a leftward inclining manner, the inner side of the lower end of the pressurizing pipe is provided with a one-way valve to prevent cement slurry from flowing back into the air compressor, the pushing pipe can blow air to the rotating push plate, so that the rotating push plate can drive the rotating sleeve to rotate, and the pressurizing pipe can pressurize the cement slurry in the grouting pipe, thereby accelerating the flow of the cement slurry.
As a preferable technical scheme of the invention, the outer side of the upper end of the plug bush is provided with an inclined chamfer, the outer side surface of the lower end of the slurry pipe is provided with a slurry guide plate with the outer end inclined downwards, and the arrangement can prevent cement slurry sprayed from a spray hole on the slurry pipe from flowing between the slurry pipe and the plug bush.
As a preferred technical scheme of the invention, the upper end and the lower end of the inner side surface of the rotating sleeve are respectively provided with an annular pressurizing bulge, the upper side surface and the lower side surface of the inner end of each pressurizing bulge are both concave arc surfaces, and the pressurizing bulges can change the pipe diameter of the rotating sleeve so as to increase the uniformity degree of cement slurry flowing out of the rotating sleeve.
As a preferred technical scheme of the invention, the inner side surface of the middle part of the rotating sleeve is provided with a groove with a spiral structure, the cement slurry can be added with some catalysts during configuration, so that the solidification speed of the cement slurry is increased, and the cement slurry can be conveyed along the spiral groove of the rotating sleeve when conveyed downwards from the pressurizing bulge, so that the cement slurry has an impact stirring process, and the uniform mixing degree of the cement slurry and the catalysts is increased.
As a preferable technical scheme of the invention, the guide plate is obliquely arranged towards the anticlockwise direction of the rotating sleeve, and the arrangement of the guide plate can increase the pushing effect of the pushing pipe on the guide plate.
As a preferred technical scheme of the invention, the spray holes on the slurry pipe are distributed on the outer side wall of the lower end of the slurry pipe in a staggered manner, the outer end of each spray hole is arranged in a downward inclined manner, the diameter of the inner end of each spray hole is larger than that of the outer end of each spray hole, the spray holes are arranged in a downward inclined manner, so that a large amount of soil can be prevented from sliding into the slurry pipe when the slurry pipe is inserted into a foundation, and the pipe diameter of each spray hole on the slurry pipe.
In addition, the invention provides a construction method of roadbed repairing equipment for road construction, which comprises the following steps:
the first step is as follows: placing a limiting frame: firstly, locking two limiting frames through locking connecting plates on the limiting frames, then placing the limiting frames at proper positions on a foundation, and locking the positions of the limiting frames through contact pins;
the second step is that: locking the pulp pipe with the plug bush: firstly, inserting the plug bush at the outer side of the lower end of the slurry pipe, locking the slurry pipe and the plug bush through a countersunk head bolt, and then placing the plug bush in an annular structure of a limiting frame;
the third step: piling the slurry pipe: hammering the upper end of the grout pipe through an external pile driver after the plug bush is placed, so that a structure formed by the grout pipe and the plug bush is driven into the foundation, and the upper end of the grout pipe is positioned above the foundation;
the fourth step: grouting by a grout pipe: the method comprises the following steps that firstly, a suction end of a suction pump is placed in cement slurry, the cement slurry can be conveyed into a slurry pipe through a conveying pipe on the suction pump, a pushing pipe can blow a rotating push plate, the rotating push plate can drive a rotating sleeve to rotate, so that the cement slurry can be conveyed downwards uniformly, a pressurizing pipe can pressurize the cement slurry in a grouting pipe, and therefore the flow of the cement slurry is accelerated, and the cement slurry can be sprayed out from a spraying hole in the slurry pipe;
the fifth step: lifting the pulp pipe: after the pile hole of the foundation is grouted to a certain degree, the pile driver is controlled to slowly lift the grout pipe, the suction pump is controlled to continuously inject grout into the pile hole at the moment, a connecting pipe on the suction pump and an air compressor can be automatically extended, and then the conveying speed of the suction pump to the grout is adjusted, so that the pile hole after piling is filled;
and a sixth step: washing a pulp pipe: and after grouting of the pile driving hole of the foundation is finished, placing the slurry pipe outside the roadbed, and sucking clear water through the suction pump to flush the slurry pipe.
The invention has the beneficial effects that:
firstly, cement slurry is injected into pile driving holes in a soft soil foundation in a mode of matching the cement slurry with compressed air, the injection distance of the cement slurry in the pile driving holes of the foundation is long, the pressurized cement slurry can be subjected to impact stirring when being conveyed in a slurry pipe, and the cement slurry can be uniformly injected into the pile holes of the foundation through the change of the pipe diameter of the slurry pipe, so that the treatment effect of the soft soil foundation is improved, and the pile driving quantity of the soft soil foundation is reduced;
the limiting frame can play a certain limiting role when the grout pipe is driven downwards, so that the grout pipe is in a vertical state;
thirdly, the rotating mechanism can guide the cement paste in a rotating mode, so that the cement paste can be uniformly transmitted to the lower end of the slurry pipe and sprayed out of a spraying hole of the slurry pipe, the pressurizing protrusion on the rotating sleeve can change the pipe diameter of the rotating sleeve so as to increase the uniformity of the cement paste flowing out of the rotating sleeve, and the spiral groove on the rotating sleeve can impact and stir the cement paste when the cement paste is transmitted, so that the uniformity of mixing of the cement paste and a catalyst is increased;
the downward inclined arrangement of the injection holes on the slurry pipe can prevent a large amount of mud from sliding into the slurry pipe when the slurry pipe is inserted into a foundation, and the arrangement of the pipe diameter of the injection holes on the slurry pipe can increase the injection distance of the cement slurry.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of the grout tube, the plug bush and the rotating mechanism of the invention;
FIG. 3 is a cross-sectional view of the grout tube, plug bush and rotating mechanism of the present invention;
FIG. 4 is an enlarged view of the portion of FIG. 3 taken along line A;
FIG. 5 is an enlarged view of the portion of FIG. 3 showing the B-shape;
fig. 6 is a schematic view of the present invention inserted into a foundation.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further explained below by combining the specific drawings. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
As shown in fig. 1 to 6, a roadbed repairing device for road construction comprises a limiting frame 1, a suction pump 2, an air compressor 3, a slurry pipe 4, an inserting sleeve 5 and a rotating mechanism 6, wherein the limiting frame 1 is of a semi-annular structure, the front side and the rear side of the inner end of the limiting frame 1 are respectively provided with a locking connecting plate 11, the middle parts of the locking connecting plates 11 are provided with a round hole, the locking connecting plates 11 on the two limiting frames 1 are locked through bolts and nuts, the inner end of the limiting frame 1 is distributed with the slurry pipe 4, the slurry pipe 4 is of a hollow cylinder structure, the side wall of the lower end of the slurry pipe 4 is provided with a jet hole, the outer side surface of the lower end of the slurry pipe 4 is symmetrically provided with a threaded hole, the upper end of the inserting sleeve 5 is sleeved on the lower end of the slurry pipe 4, the position of the inserting sleeve 5 corresponding to the threaded hole of the slurry pipe 4 is provided with a round hole, the inserting sleeve 5 is, the invention is firstly placed at a proper position on a soft soil foundation, the limiting frame 1 is locked and placed above a road foundation, then an inserting sleeve 5 is locked at the lower end of the pulp pipe 4, the structure formed by the pulp pipe 4 and the inserting sleeve 5 is erected in an annular structure formed by two limiting frames 1, the pulp pipe 4 and the inserting sleeve 5 are driven into the foundation by an external pile driver, so that the upper part of the pulp pipe 4 is positioned on the foundation, then the suction end of the suction pump 2 is placed in the cement paste, and the pulp can be conveyed into the pulp pipe 4 by the transmission pipe on the suction pump 2, the cement paste in the grout pipe 4 can be uniformly sprayed out from the spraying hole of the grout pipe 4 under the action of the rotating mechanism 6, the air compressor 3 can pressurize the cement paste in the grout pipe 4 through the transmission pipe, so that the cement paste can be sprayed into the ground, then the grout pipe 4 is slowly hoisted by the pile driver, at the moment, the suction pump 2 is controlled to continuously spray the cement paste in the pile driving hole, and the pile driving hole after pile driving is filled.
The middle part of every spacing 1 on all be provided with a spout, all be connected with the lower extreme of sliding body 12 through sliding fit's mode on every spout on the spacing 1, install the support cover 13 of arc structure on the upper end medial surface of sliding body 12, the middle part lateral surface of sliding body 12 is connected with the inner of sliding spring 14, the outer end of sliding spring 14 is installed on the outer end top of spacing 1 through spring even board 15, during specific work, support cover 13 can play certain spacing effect when thick liquid pipe 4 is piled downwards for thick liquid pipe 4 is in vertical state.
The spray holes on the slurry pipe 4 are distributed on the outer side wall of the lower end of the slurry pipe in a staggered mode, the outer ends of the spray holes are arranged in a downward inclined mode, the diameter of the inner ends of the spray holes is larger than that of the outer ends of the spray holes, the spray holes are arranged in a downward inclined mode and can prevent a large amount of soil from sliding into the slurry pipe 4 when the slurry pipe 4 is inserted into a foundation, and the pipe diameter of the spray holes on the slurry pipe 4 can be increased.
The right side wall of the upper end of the slurry pipe 4 is connected with a slurry injection pipe 41, the air guide pipe 42 is positioned right above the slurry injection pipe 41, the air guide pipe 42 is installed on the right side wall of the slurry pipe 4, the outer end of the slurry injection pipe 41 is connected with a transmission pipe of the suction pump 2, and the air guide pipe 42 is connected with a transmission pipe of the air compressor 3.
The inner of air duct 42 be provided with propelling movement pipe 43, propelling movement pipe 43 is L type structure, the lower extreme of propelling movement pipe 43 passes deflector 64, and the lower extreme of propelling movement pipe 43 inclines backward and arranges, the middle part lower extreme of air duct 42 is connected with the inner top of slip casting pipe 41 through forcing pipe 44, the lower extreme of forcing pipe 44 inclines left and arranges, the lower extreme inboard of forcing pipe 44 can be equipped with the check valve, prevent in the grout flows back air compressor 3, propelling movement pipe 43 can blow to rotatory push pedal 63, make to rotate push pedal 63 and drive and rotate cover 61 and rotate, forcing pipe 44 can play the pressurized effect to the grout in the slip casting pipe 41, thereby the flow of grout is accelerated.
The rotating mechanism 6 comprises a rotating sleeve 61, rotating guide blocks 62, a rotating push plate 63 and a guide plate 64, wherein the rotating sleeve 61 is positioned in the upper end of the pulp pipe 4, the upper end and the lower end of the rotating sleeve 61 are respectively provided with an annular groove, a group of rotating guide blocks 62 are arranged at each annular groove of the pulp pipe 4 corresponding to the rotating sleeve 61, the rotating guide blocks 62 are symmetrically distributed in the annular grooves of the rotating sleeve 61, the rotating guide blocks 62 are of arc structures, the upper side surface, the lower side surface and the inner side surface of the inner end of each rotating guide block 62 are respectively provided with a ball, and the balls arranged on the rotating guide blocks 62 are contacted with the side walls of the annular grooves on the rotating sleeve 61;
rotate and evenly install on the top of cover 61 and rotate push pedal 63, it has deflector 64 to rotate the top distribution of cover 61, deflector 64 installs on the inner wall of thick liquid pipe 4, deflector 64 is the cyclic annular structure of inner downward sloping, concrete during operation, slewing mechanism 6 can rotate the direction to grout, make grout can be even convey the lower extreme of thick liquid pipe 4 and from the jet orifice blowout of thick liquid pipe 4, it plays the effect of location to rotate cover 61 to rotate guide block 62, it can also cooperate and rotate cover 61 to rotate guide block 62, deflector 64 can lead to grout, prevent that grout from transmitting to rotate between cover 61 and the rotation guide block 62.
The guide plate 64 is arranged obliquely in the counterclockwise direction of the rotating sleeve 61, and the arrangement of the guide plate 64 can increase the pushing effect of the pushing pipe 43 on the guide plate 64.
The outer side of the upper end of the plug bush 5 is provided with an inclined chamfer, the outer side surface of the lower end of the slurry pipe 4 is provided with a slurry guide plate 45 with the outer end inclined downwards, and the arrangement can prevent cement slurry sprayed from a spray hole on the slurry pipe 4 from flowing between the slurry pipe 4 and the plug bush 5.
The upper end and the lower end of the inner side surface of the rotating sleeve 61 are both provided with an annular pressurizing protrusion 611, the upper side surface and the lower side surface of the inner end of the pressurizing protrusion 611 are both concave arc surfaces, and the pressurizing protrusion 611 can change the pipe diameter of the rotating sleeve 61, so that the uniformity of cement slurry flowing out of the rotating sleeve 61 is increased.
Rotate the recess that is provided with helical structure on the middle part medial surface of cover 61, grout can add some catalysts when the configuration to increase the setting speed of grout, grout can convey along rotating cover 61 spiral groove when the bellied 611 of pressurization conveys downwards, make grout have the process of impact stirring, thereby increase the misce bene degree of grout and catalyst.
In addition, the invention provides a construction method of roadbed repairing equipment for road construction, which comprises the following steps:
the first step is as follows: the limiting frame 1 is placed: firstly, locking two limiting frames 1 through locking connecting plates 11 on the limiting frames 1, then placing the limiting frames 1 at proper positions on a foundation, and locking the positions of the limiting frames 1 through pins;
the second step is that: the pulp pipe 4 is locked with the plug bush 5: firstly, inserting the plug bush 5 at the outer side of the lower end of the slurry pipe 4, locking the slurry pipe 4 and the plug bush 5 through a countersunk head bolt, and then placing the plug bush 5 in an annular structure of the limiting frame 1;
the third step: piling the slurry pipe 4: after the plug bush 5 is placed, the upper end of the grout pipe 4 is hammered through an external pile driver, so that the structure formed by the grout pipe 4 and the plug bush 5 is driven into a foundation, and the upper end of the grout pipe 4 is positioned above the foundation;
the fourth step: grouting by a grout pipe 4: firstly, a suction end of a suction pump 2 is placed in cement slurry, the cement slurry can be conveyed into a slurry pipe 4 through a conveying pipe on the suction pump 2, a pushing pipe 43 can blow a rotating push plate 63, the rotating push plate 63 can drive a rotating sleeve 61 to rotate, so that the cement slurry can be conveyed downwards uniformly, a pressurizing pipe 44 can pressurize the cement slurry in a grouting pipe 41, the flow of the cement slurry is accelerated, and the cement slurry can be sprayed out from a spraying hole on the slurry pipe 4;
the fifth step: lifting the pulp pipe 4: after the pile hole of the foundation is grouted to a certain degree, the pile driver is controlled to slowly lift the grout pipe 4, at the moment, the suction pump 2 is controlled to continuously inject grout into the pile hole, a connecting pipe on the suction pump 2 and the air compressor 3 can be automatically extended, and then the transmission speed of the suction pump 2 to the grout is adjusted, so that the pile hole after pile driving is grouted;
and a sixth step: washing the pulp pipe 4: after grouting of a pile hole of the foundation is finished, the slurry pipe 4 is placed on the outer side of the roadbed, and clear water is sucked by the suction pump 2 to flush the slurry pipe 4.
The method adopts the mode that the cement paste is matched with the compressed air to spray the cement paste into the pile driving holes in the soft soil foundation, the spraying distance of the cement paste in the pile driving holes of the foundation, and the pressurized cement paste can be subjected to impact stirring when being conveyed in the grout pipe and can be uniformly sprayed into the pile holes of the foundation through the change of the pipe diameter of the grout pipe, so that the treatment effect of the soft soil foundation is improved, and the pile driving quantity of the soft soil foundation is reduced.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (9)
1. The utility model provides a road bed repair equipment for road construction, includes spacing (1), suction pump (2), air compressor (3), thick liquid pipe (4), plug bush (5) and slewing mechanism (6), its characterized in that: the limiting frame (1) is of a semi-annular structure, the front side and the rear side of the inner end of the limiting frame (1) are respectively provided with a locking connecting plate (11), the middle part of each locking connecting plate (11) is provided with a round hole, the locking connecting plates (11) on the two limiting frames (1) are locked through bolts and nuts, the inner end of each limiting frame (1) is distributed with a pulp pipe (4), the pulp pipes (4) are of a hollow cylinder structure, the side wall of the lower end of each pulp pipe (4) is provided with a jet hole, the outer side surface of the lower end of each pulp pipe (4) is symmetrically provided with a threaded hole, the upper end of each plug bush (5) is sleeved on the lower end of each pulp pipe (4), round holes are arranged at positions, corresponding to the threaded holes of the pulp pipes (4), on the plug bushes (5), the plug bushes (5) are locked on the threaded holes at the lower ends of the pulp pipes (4) through countersunk bolts, the lower ends of the plug bushes (, an absorption pump (2) is installed on a limiting frame (1) at the right end of the pulp pipe (4), an air compressor (3) is located on the rear side of the absorption pump (2), and the air compressor (3) is installed on the limiting frame (1) at the right end of the pulp pipe (4); wherein:
the middle part of each limiting frame (1) is provided with a sliding chute, each sliding chute on each limiting frame (1) is connected with the lower end of a sliding body (12) in a sliding fit mode, the inner side surface of the upper end of the sliding body (12) is provided with a supporting sleeve (13) with an arc-shaped structure, the outer side surface of the middle part of the sliding body (12) is connected with the inner end of a sliding spring (14), and the outer end of the sliding spring (14) is arranged on the top of the outer end of the limiting frame (1) through a spring connecting plate (15);
the rotating mechanism (6) comprises a rotating sleeve (61), rotating guide blocks (62), a rotating push plate (63) and a guide plate (64), wherein the rotating sleeve (61) is positioned in the upper end of the pulp pipe (4), the upper end and the lower end of the rotating sleeve (61) are respectively provided with an annular groove, a group of rotating guide blocks (62) are respectively arranged at each annular groove on the pulp pipe (4) corresponding to the rotating sleeve (61), the rotating guide blocks (62) are symmetrically distributed in the annular grooves of the rotating sleeve (61), the rotating guide blocks (62) are of an arc structure, the upper side surface and the lower side surface of the inner end of each rotating guide block (62) are respectively provided with a ball, and the balls arranged on the rotating guide blocks (62) are contacted with the side wall of the annular groove on the rotating sleeve (61);
the top of the rotating sleeve (61) is uniformly provided with a rotating push plate (63), a guide plate (64) is distributed above the rotating sleeve (61), the guide plate (64) is arranged on the inner wall of the pulp pipe (4), and the guide plate (64) is of an annular structure with the inner end inclined downwards.
2. The roadbed repairing equipment for road construction according to claim 1, wherein: the upper end right side wall of thick liquid pipe (4) on be connected with slip casting pipe (41), air duct (42) are located slip casting pipe (41) directly over, air duct (42) are installed on the right side wall of thick liquid pipe (4).
3. The roadbed repairing equipment for road construction according to claim 2, wherein: the inner of air duct (42) be provided with propelling movement pipe (43), propelling movement pipe (43) are L type structure, the lower extreme of propelling movement pipe (43) passes deflector (64), and the lower extreme of propelling movement pipe (43) inclines backward and arranges, the middle part lower extreme of air duct (42) is connected with the inner top of slip casting pipe (41) through forcing pipe (44), the lower extreme of forcing pipe (44) inclines to the left side and arranges.
4. The roadbed repairing equipment for road construction according to claim 1, wherein: the outer side of the upper end of the plug bush (5) is provided with an inclined chamfer, and the outer side surface of the lower end of the pulp pipe (4) is provided with a pulp guide plate (45) with the outer end inclined downwards.
5. The roadbed repairing equipment for road construction according to claim 1, wherein: the upper end and the lower end of the inner side surface of the rotating sleeve (61) are respectively provided with an annular pressurizing protrusion (611), and the upper side surface and the lower side surface of the inner end of the pressurizing protrusion (611) are both inwards concave arc-shaped surfaces.
6. The roadbed repairing equipment for road construction is characterized in that: the inner side surface of the middle part of the rotating sleeve (61) is provided with a groove with a spiral structure.
7. The roadbed repairing equipment for road construction according to claim 1, wherein: the guide plate (64) is obliquely arranged towards the counterclockwise direction of the rotating sleeve (61).
8. The roadbed repairing equipment for road construction according to claim 1, wherein: the spraying holes on the pulp pipe (4) are distributed on the outer side wall of the lower end of the pulp pipe in a staggered mode, the outer ends of the spraying holes are arranged in a downward inclined mode, and the diameter of the inner ends of the spraying holes is larger than that of the outer ends of the spraying holes.
9. The construction method of the roadbed repairing equipment for road construction as claimed in claim 3, wherein: the method comprises the following steps:
the first step is as follows: the limiting frame (1) is placed: firstly, locking two limiting frames (1) through locking connecting plates (11) on the limiting frames (1), then placing the limiting frames (1) at proper positions on a foundation, and locking the positions of the limiting frames (1) through pins;
the second step is that: the pulp pipe (4) is locked with the plug bush (5): firstly, inserting an inserting sleeve (5) at the outer side of the lower end of a slurry pipe (4), locking the slurry pipe (4) and the inserting sleeve (5) through a countersunk head bolt, and then placing the inserting sleeve (5) in an annular structure of a limiting frame (1);
the third step: piling the slurry pipe (4): after the plug bush (5) is placed, the upper end of the grout pipe (4) is hammered through an external pile driver, so that a structure formed by the grout pipe (4) and the plug bush (5) is driven into a foundation, and the upper end of the grout pipe (4) is positioned above the foundation;
the fourth step: grouting by the grout pipe (4): firstly, the suction end of a suction pump (2) is placed in cement slurry, the slurry can be conveyed into a slurry pipe (4) through a conveying pipe on the suction pump (2), a pushing pipe (43) can blow a rotating push plate (63), the rotating push plate (63) can drive a rotating sleeve (61) to rotate, so that the cement slurry can be conveyed uniformly downwards, a pressurizing pipe (44) can pressurize the cement slurry in a grouting pipe (41), the flow of the cement slurry is accelerated, and the cement slurry can be sprayed out from a spraying hole on the slurry pipe (4);
the fifth step: the pulp pipe (4) is lifted: after the pile hole of the foundation is grouted to a certain degree, the pile driver is controlled to slowly lift the grout pipe (4), at the moment, the suction pump (2) is controlled to continuously inject grout into the pile hole, a connecting pipe on the suction pump (2) and the air compressor (3) can be automatically extended, and then the transmission speed of the suction pump (2) to the grout is adjusted, so that the pile hole after pile driving is filled;
and a sixth step: washing the pulp pipe (4): after grouting of a pile driving hole of the foundation is finished, the slurry pipe (4) is placed on the outer side of the roadbed, and clear water is absorbed by the absorption pump (2) to flush the slurry pipe (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010013839.4A CN111172832B (en) | 2020-01-07 | 2020-01-07 | Roadbed repairing equipment for road construction and construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010013839.4A CN111172832B (en) | 2020-01-07 | 2020-01-07 | Roadbed repairing equipment for road construction and construction method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111172832A CN111172832A (en) | 2020-05-19 |
| CN111172832B true CN111172832B (en) | 2021-06-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010013839.4A Expired - Fee Related CN111172832B (en) | 2020-01-07 | 2020-01-07 | Roadbed repairing equipment for road construction and construction method |
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| Country | Link |
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| CN (1) | CN111172832B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115467318B (en) * | 2022-08-25 | 2023-08-04 | 中建八局第一建设有限公司 | Soft soil foundation treatment structure |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB650083A (en) * | 1947-07-18 | 1951-02-14 | Leandre Armand | Improvements relating to methods of casting concrete piles and apparatus therefor |
| JP2923758B2 (en) * | 1996-09-17 | 1999-07-26 | 東洋建設株式会社 | High pressure injection stirring method |
| JP2949484B2 (en) * | 1997-05-08 | 1999-09-13 | 東京地下工事株式会社 | Injection solidification method and its injection device |
| CN100580188C (en) * | 2008-02-28 | 2010-01-13 | 上海市第二市政工程有限公司 | Fourfold pipe stratum decompression type double-liquor rotary spraying construction method |
| US20110110726A1 (en) * | 2009-11-06 | 2011-05-12 | Thomas Plahert | Jet grouting device with rotating roller bearing within casing pipe and rotating pipe |
| JP6271240B2 (en) * | 2013-12-19 | 2018-01-31 | 東亜建設工業株式会社 | Ground improvement method and apparatus |
| CN104790282B (en) * | 2015-05-13 | 2017-01-04 | 浙江海洋学院 | A kind of road surface with soft subgrade whitewashing processing means |
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