CN114017046A - Synchronous grouting and cleaning device for subway shield of sludge soft soil layer - Google Patents
Synchronous grouting and cleaning device for subway shield of sludge soft soil layer Download PDFInfo
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- CN114017046A CN114017046A CN202111196465.5A CN202111196465A CN114017046A CN 114017046 A CN114017046 A CN 114017046A CN 202111196465 A CN202111196465 A CN 202111196465A CN 114017046 A CN114017046 A CN 114017046A
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- 238000004140 cleaning Methods 0.000 title claims abstract description 28
- 230000001360 synchronised effect Effects 0.000 title claims abstract description 24
- 239000002689 soil Substances 0.000 title claims abstract description 19
- 239000010802 sludge Substances 0.000 title claims description 4
- 230000007246 mechanism Effects 0.000 claims abstract description 63
- 238000007569 slipcasting Methods 0.000 claims abstract description 17
- 238000007789 sealing Methods 0.000 claims description 38
- 238000003825 pressing Methods 0.000 claims description 19
- 239000012530 fluid Substances 0.000 claims description 13
- 239000007921 spray Substances 0.000 claims description 11
- 230000005540 biological transmission Effects 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims 2
- 239000007788 liquid Substances 0.000 abstract description 18
- 239000002002 slurry Substances 0.000 description 19
- 230000000694 effects Effects 0.000 description 14
- 239000011440 grout Substances 0.000 description 12
- 238000009412 basement excavation Methods 0.000 description 6
- 238000004891 communication Methods 0.000 description 5
- 239000012466 permeate Substances 0.000 description 5
- 230000001788 irregular Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000005641 tunneling Effects 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 230000002337 anti-port Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
- E21D9/08—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining with additional boring or cutting means other than the conventional cutting edge of the shield
- E21D9/087—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining with additional boring or cutting means other than the conventional cutting edge of the shield with a rotary drilling-head cutting simultaneously the whole cross-section, i.e. full-face machines
- E21D9/0873—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining with additional boring or cutting means other than the conventional cutting edge of the shield with a rotary drilling-head cutting simultaneously the whole cross-section, i.e. full-face machines the shield being provided with devices for lining the tunnel, e.g. shuttering
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/08—Lining with building materials with preformed concrete slabs
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
- E21D11/105—Transport or application of concrete specially adapted for the lining of tunnels or galleries ; Backfilling the space between main building element and the surrounding rock, e.g. with concrete
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Civil Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Lining And Supports For Tunnels (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The invention discloses a synchronous grouting cleaning device for a subway shield on a muddy soft soil layer, which comprises an outer fixing ring, an arc slide rail, a supporting mechanism and a circumferential driving mechanism, wherein the arc slide rail, the supporting mechanism and the circumferential driving mechanism are fixed in the outer fixing ring, the inner side wall of the arc slide rail is connected with three or more supporting mechanisms in a circumferential sliding mode, the circumferential driving mechanism is coaxially arranged in the outer fixing ring, the outer side wall of the circumferential driving mechanism is fixedly connected with the supporting mechanism, and the supporting mechanism is fixedly connected with an adjustable grouting mechanism. According to the invention, the hydraulic motor and the gear ring are matched with each other, so that the supporting mechanism can be driven to rotate circumferentially, and the requirement of rapid grouting at different positions is met; angle adjusting part can drive the radial swing back and forth of flexible subassembly in the actual slip casting, and when the thick liquid pours into the gap into, the head pipe drives the reciprocal swing of thick liquid, compares the slip casting pipe that the tradition was fixed, and reciprocal swing slip casting can make quick contact tunnel wall of thick liquid and section of jurisdiction outer wall.
Description
Technical Field
The invention relates to the technical field of shield synchronous grouting. In particular to a synchronous grouting and cleaning device for a subway shield on a muddy soft ground layer.
Background
In tunnel construction, the shield excavation method has become main excavation mode, and after the shield excavation, the tunnel diameter of excavation can be greater than the external diameter of splicing back section of jurisdiction, makes to have certain gap between the two, and then influences the stability in tunnel, and effectual way is to pour into the thick liquid into in step in the gap, plays the effect of filling the gap, supporting the tunnel and avoiding the earth's surface to subside. In actual synchronous grouting, a grouting pipeline is generally a pipeline with a fixed position, rapid grouting is needed for a specific position in different stratums, and during grouting of the fixed pipeline, grout can permeate the specific position only after the periphery of the fixed pipeline is filled with the grout first, so that the actual grouting effect cannot be guaranteed.
Disclosure of Invention
Therefore, the invention aims to solve the technical problem of providing the synchronous grouting cleaning device for the subway shield on the soft silt stratum, which meets the grouting requirements of different positions and improves the grouting effect.
In order to solve the technical problems, the invention provides the following technical scheme: a subway shield synchronous grouting cleaning device for a silt soft soil layer comprises an outer fixing ring, an arc slide rail, a supporting mechanism and a circumferential driving mechanism, wherein the arc slide rail is fixed in the outer fixing ring; the outer fixed ring is fixedly connected with a connecting plate, the outer fixed ring is fixedly connected to the tail of the shield tunneling machine through the connecting plate, and the grouting end of the adjustable grouting mechanism is inserted into a gap between the duct piece and the tunnel wall.
Above-mentioned synchronous slip casting belt cleaning device of soft stratum subway shield of silt matter, adjustable slip casting mechanism includes flexible subassembly and angle adjusting part, angle adjusting part fixed connection be in on the supporting mechanism lateral wall, flexible subassembly fixed connection be in angle adjusting part's regulation is served, the tip of flexible subassembly inserts in the gap between section of jurisdiction and tunnel wall.
The subway shield synchronous grouting cleaning device for the muddy soft soil layer comprises two fixing plates, fixing blocks, a hydraulic cylinder and a frame, wherein opposite surfaces of first ends of the two fixing plates are fixedly connected with two ends of the fixing blocks, two ends of the frame are respectively and rotatably connected with opposite surfaces of second ends of the two fixing plates through pin shafts, a raised bump is arranged in the middle of the frame, one end of the hydraulic cylinder is hinged with the side wall of the fixing block, and the other end of the hydraulic cylinder is hinged with the side wall of the bump at the top of the frame; the telescopic component comprises an outer sleeve, an inner tube and a head tube, the outer sleeve is coaxially sleeved on the inner tube, a sealing sleeve is fixedly connected to the tube wall of the first end of the inner tube, the outer side wall of the sealing sleeve is in sealing fit with the inner wall of the outer sleeve, a first spring is sleeved on the surface of the inner tube, the first end of the first spring is in lap joint with the end part of the sealing sleeve, the second end of the first spring is in lap joint with the inner top wall of the second end of the outer sleeve, the second end of the inner tube is communicated with the first end of the head tube through fluid, a sealing block is in sealing fit with the second end of the head tube, a fixing frame is fixedly connected to the middle part of the inner wall of the head tube, a guide hole is formed in the middle of the fixing frame, a guide rod is fixedly connected to the inner side wall of the sealing block, the end part of the guide rod penetrates through the guide hole and is fixedly connected with a baffle, and a second spring is sleeved on the guide rod, one end of the second spring is in lap joint with the side wall of the baffle, the other end of the second spring is in lap joint with the side wall of the fixing frame, and the first end of the outer sleeve is communicated with a hose through fluid; the outer sleeve is fixedly connected to the frame; the first end of the fixing plate is fixedly connected to the side wall of the supporting mechanism.
Above-mentioned synchronous slip casting belt cleaning device of silt matter soft stratum subway shield, the shape of sealed piece is the frustum of a cone form, the second end inner wall of head pipe is the toper, the toper lateral wall of sealed piece with the inner wall seal fit of head pipe second end.
Above-mentioned synchronous slip casting belt cleaning device of soft stratum subway shield of silt matter, supporting mechanism includes support frame, supporting roller rotates to set up in the support frame, supporting roller's lateral wall overlap joint is in on the lateral wall of circular arc slide rail, the one end of support frame with circumference actuating mechanism's lateral wall fixed connection.
The subway shield synchronous grouting cleaning device for the sludge soft soil layer is characterized in that a first nozzle and a second nozzle are fixedly connected to two sides of a support frame respectively, the first nozzle and the second nozzle are arranged towards the arc slide rail, a bottom plate is arranged on one side of the support frame, the bottom plate is fixedly connected to the side wall of the circumferential driving mechanism, a shift lever is rotatably connected to the side wall of the bottom plate, press valves are fixedly connected to two sides of the bottom plate respectively, a press end of each press valve is in lap joint with the side wall of the shift lever, tension springs are symmetrically and fixedly connected to two sides of the shift lever, the other ends of the two tension springs are fixedly connected with the bottom plate respectively, a groove is formed in the inner side wall surface of the arc slide rail along the circumferential direction of the inner side wall surface, the shift lever is inserted into the groove, and the output end of one press valve is in fluid communication with the first nozzle, and the output end of the other pressing valve is communicated with the second spray head.
Above-mentioned synchronous slip casting belt cleaning device of soft stratum subway shield of silt, circumference actuating mechanism includes ring gear and hydraulic motor, the ring gear sets up in the outer fixed ring just the outer wall of ring gear with supporting mechanism's tip fixed connection, fixedly connected with gear on hydraulic motor's the output shaft, hydraulic motor pass through the gear with the ring gear transmission is connected, hydraulic motor's lateral wall pass through the support with outer fixed ring fixed connection.
The technical scheme of the invention achieves the following beneficial technical effects:
1. according to the invention, the hydraulic motor and the gear ring are matched with each other, so that the supporting mechanism can be driven to rotate circumferentially, and the requirement of rapid grouting at different positions is met; in actual grouting, the angle adjusting assembly can drive the telescopic assembly to swing back and forth in the radial direction, when grout is injected into a gap, the head pipe drives the grout to swing and pour out in a reciprocating mode, compared with a traditional fixed grouting pipe, the grouting in the reciprocating mode can enable the grout to quickly contact with the wall surface of a tunnel and the outer wall of a duct piece, when a soft soil layer is excavated, particularly the top of the tunnel, the grout can directly contact with the tunnel wall after being excavated, the stability of the soft soil layer is kept by the grout, the whole gap is filled with the grout from bottom to top when the grouting pipe at a traditional fixed position is grouted, the top of the tunnel is finally contacted with the grout, the grouting effect is poor, and the stability of the soil layer is difficult to guarantee quickly; when grouting is carried out, the telescopic assembly is extended by the pressure of grout and inserted into the gap, so that grouting is convenient to carry out, and when the grouting position needs to be adjusted greatly after grouting is stopped, the telescopic assembly is shortened, so that the telescopic assembly is prevented from colliding with irregular positions of the tunnel wall when the position is adjusted; after the sealing block is jacked open under the action of the pressure of the slurry, the slurry is obliquely sprayed out along the conical surface of the sealing block, so that the contact effect of the slurry with a duct piece and a tunnel wall is further improved, the slurry can be sprayed onto the duct piece at a certain pressure after being sprayed out, the effect of the slurry permeating into a duct piece gap is improved, the slurry permeates into a soil layer and a duct piece gap at a certain pressure after being randomly flowed and filled in the gap in the conventional grouting, the slurry is sprayed onto the duct piece and the tunnel wall at a certain pressure, and then permeates into the soil layer and the duct piece gap at a certain pressure after being filled in the gap, the slurry permeating effect is improved, and the elasticity of the second spring is larger than that of the first spring by arranging the second spring and the sealing block, so that the inner pipe can be completely stretched out; after the circumferential driving mechanism and the angle adjusting assembly are matched with each other, the synchronous grouting operation of circumferential swinging and radial swinging can be realized, and the grouting effect is further improved.
2. According to the invention, the groove is formed on the inner side of the arc slide rail, and the deflector rod, the pressing valve, the first spray head and the second spray head are matched, so that when the gear ring rotates, the deflector rod obliquely extrudes the corresponding pressing valve, the corresponding spray head sprays cleaning liquid, the surface of the arc slide rail is always kept in a clean state in the advancing direction of the arc slide rail, the service lives of the arc slide rail and the supporting roller are prolonged, and the running stability of the whole equipment is improved.
Drawings
FIG. 1 is a schematic bottom perspective view of the present invention;
FIG. 2 is a schematic top perspective view of the present invention;
FIG. 3 is a schematic view of an elevation structure of an adjustable grouting mechanism of the present invention;
FIG. 4 is a schematic perspective view of an adjustable grouting mechanism according to the present invention;
FIG. 5 is a schematic front sectional view of the telescoping assembly of the present invention;
FIG. 6 is an enlarged schematic view of the invention at B of FIG. 5;
FIG. 7 is a schematic front view of the present invention;
FIG. 8 is an enlarged view of FIG. 7 at A according to the present invention;
FIG. 9 is a schematic view showing the assembly of the bottom plate, the tension spring, the shift lever and the pressing valve according to the present invention;
FIG. 10 is a schematic cross-sectional view of a support mechanism and a circular arc slide rail according to the present invention.
The reference numbers in the figures denote: 1-an outer fixing ring; 2-connecting plates; 3-arc slide rail; 301-grooves; 4-a gear ring; 5-a support mechanism; 501-a support frame; 502-support rollers; 6-adjustable grouting mechanism; 601-an outer sleeve; 602-an inner tube; 603-sealing sleeve; 604-a first spring; 605-head tube; 606-a sealing block; 607-a fixing frame; 608-a second spring; 609-a guide rod; 610-a baffle; 611-a hose; 612-a fixed plate; 613-fixed block; 614-hydraulic cylinder; 615-framework; 7-a hydraulic motor; 8-a first spray head; 9-a second spray head; 10-a base plate; 101-tension spring; 102-a deflector rod; 103-pressing the valve.
Detailed Description
The subway shield synchronous grouting cleaning device for the muddy soft soil layer comprises an outer fixing ring 1, an arc slide rail 3 fixed in the outer fixing ring 1, a supporting mechanism 5 and a circumferential driving mechanism, wherein the inner side wall of the arc slide rail 3 is connected with three or more supporting mechanisms 5 in a sliding manner along the circumferential direction of the arc slide rail 3, the circumferential driving mechanism is coaxially arranged in the outer fixing ring 1, the outer side wall of the circumferential driving mechanism is fixedly connected with the supporting mechanism 5, and an adjustable grouting mechanism 6 is fixedly connected to the supporting mechanism 5; the outer fixing ring 1 is fixedly connected with a connecting plate 2, the outer fixing ring 1 is fixedly connected with the tail part of the shield tunneling machine through the connecting plate 2, the grouting end of the adjustable grouting mechanism 6 is inserted into a gap between a duct piece and a tunnel wall, as shown in fig. 6, the circumferential driving mechanism comprises a gear ring 4 and a hydraulic motor 7, the gear ring 4 is arranged in the outer fixed ring 1, the outer wall of the gear ring 4 is fixedly connected with the end part of the supporting mechanism 5, a gear is fixedly connected to an output shaft of the hydraulic motor 7, the hydraulic motor 7 is in transmission connection with the gear ring 4 through the gear, the side wall of the hydraulic motor 7 is fixedly connected with the outer fixing ring 1 through a bracket, through setting up hydraulic motor 7 and ring gear 4 and mutually supporting, can realize driving 5 circumferential direction of supporting mechanism to satisfy the needs of the quick slip casting in different positions.
As shown in fig. 3 and 4, the adjustable grouting mechanism 6 includes a telescopic component and an angle adjusting component, the angle adjusting component is fixedly connected to the side wall of the supporting mechanism 5, the telescopic component is fixedly connected to the adjusting end of the angle adjusting component, the end of the telescopic component is inserted into the gap between the duct piece and the tunnel wall, the angle adjusting component includes two fixing plates 612, a fixing block 613, a hydraulic cylinder 614 and a frame 615, opposite surfaces of first ends of the two fixing plates 612 are fixedly connected to both ends of the fixing block 613, both ends of the frame 615 are respectively rotatably connected to opposite surfaces of second ends of the two fixing plates 612 through pin shafts, a raised bump is disposed in the middle of the frame 615, one end of the hydraulic cylinder 614 is hinged to the side wall of the fixing block 613, and the other end of the hydraulic cylinder 614 is hinged to a bump side wall at the top of the frame 615, angle adjusting part can drive the radial swing back and forth of flexible subassembly in the actual slip casting, when the thick liquid pours into the gap into, head pipe 605 drives the reciprocal swing of thick liquid, compare the fixed slip casting pipe of tradition, reciprocal swing slip casting can make quick contact tunnel wall and the section of jurisdiction outer wall of thick liquid, when soft soil stratum excavation, especially the top in tunnel, thick liquid can direct contact tunnel roof after the excavation, utilize the thick liquid to keep the stability on soft soil layer, and the slip casting pipe slip casting of traditional fixed position, the thick liquid is by supreme whole gap of being full of down, tunnel top position final contact thick liquid, the slip casting effect is relatively poor, be difficult to the stability on quick assurance soil layer.
As shown in fig. 5, the telescopic assembly includes an outer sleeve 601, an inner tube 602, and a head tube 605, the outer sleeve 601 is coaxially sleeved on the inner tube 602, a sealing sleeve 603 is fixedly connected to a wall of a first end of the inner tube 602, an outer side wall of the sealing sleeve 603 is in sealing fit with an inner wall of the outer sleeve 601, a first spring 604 is sleeved on a surface of the inner tube 602, a first end of the first spring 604 is overlapped with an end of the sealing sleeve 603, a second end of the first spring 604 is overlapped on an inner top wall of a second end of the outer sleeve 601, as shown in fig. 6, a second end of the inner tube 602 is in fluid communication with the first end of the head tube 605, a sealing block 606 is in sealing fit with a second end of the head tube 605, a fixing frame 607 is fixedly connected to a middle portion of the inner wall of the head tube 605, a guide hole is formed in a middle portion of the fixing frame 607, a guide rod 609 is fixedly connected to an inner side wall of the sealing block 606, the end of the guide rod 609 passes through the guide hole and is fixedly connected with a baffle 610, a second spring 608 is sleeved on the guide rod 610, one end of the second spring 608 is overlapped with the side wall of the baffle 610, the other end of the second spring 608 is overlapped with the side wall of the fixing frame 607, and a hose 611 is communicated with the first end of the outer sleeve 601; the outer sleeve 601 is fixedly connected to the frame 615; the first end of the fixing plate 612 is fixedly connected to the side wall of the support frame 501, the sealing block 606 is in a truncated cone shape, the inner wall of the second end of the head pipe 605 is in a conical shape, the conical side wall of the sealing block 606 is in sealing fit with the inner wall of the second end of the head pipe 605, the telescopic assembly is extended under the pressure of slurry and inserted into a gap during grouting, so that grouting is facilitated, and when the grouting position needs to be adjusted greatly when grouting is stopped, the telescopic assembly is shortened, so that collision between the telescopic assembly and the irregular position of the tunnel wall is avoided during position adjustment; after the sealing block 606 is pushed open under the action of the pressure of the slurry, the slurry is obliquely sprayed out along the conical surface of the sealing block, so that the contact effect of the slurry with a duct piece and a tunnel wall is further improved, the slurry can be sprayed onto the duct piece at a certain pressure after being sprayed out, the effect of the slurry permeating into a duct piece gap is improved, the slurry permeates into a soil layer and a duct piece gap at a certain pressure after being randomly flowed and filled in the gap in the conventional grouting, the slurry is firstly sprayed onto the duct piece and the tunnel wall, and then permeates into the soil layer and the duct piece gap at a certain pressure after being filled in the gap, the slurry permeating effect is improved, and the elasticity of the second spring 608 is larger than that of the first spring 604 by arranging the second spring 608 and the sealing block 606, so that the inner pipe 602 can be ensured to be completely stretched out; after the circumferential driving mechanism and the angle adjusting assembly are matched with each other, the synchronous grouting operation of circumferential swinging and radial swinging can be realized, and the grouting effect is further improved.
As shown in fig. 8 and 10, the supporting mechanism 5 includes a supporting frame 501, a supporting roller 502, the supporting roller 502 is rotatably disposed in the supporting frame 501, a side wall of the supporting roller 502 is overlapped on a side wall of the arc slide rail 3, and one end of the supporting frame 501 is fixedly connected with a side wall of the gear ring 4.
As shown in fig. 9, two sides of the support frame 501 are fixedly connected with a first nozzle 8 and a second nozzle 9 respectively, the first nozzle 8 and the second nozzle 9 are both arranged toward the circular arc slide rail 3, one side of the support frame 501 is provided with a bottom plate 10, the bottom plate 10 is fixedly connected to the side wall of the gear ring 4, the side wall of the bottom plate 10 is rotatably connected with a shift lever 102, two sides of the bottom plate 10 are both fixedly connected with a press valve 103, the press end of the press valve 103 is overlapped with the side wall of the shift lever 102, two sides of the shift lever 102 are symmetrically and fixedly connected with tension springs 101, the other ends of the two tension springs 101 are respectively fixedly connected with the bottom plate 10, a groove 301 is formed on the inner side wall surface of the circular arc slide rail 3 along the circumferential direction thereof, the shift lever 102 is inserted into the groove 301, and the output end of one press valve 103 is in fluid communication with the first nozzle 8, the output end of the other pressing valve 103 is in fluid communication with the second nozzle 9, and the input ends of the two pressing valves 103 are in fluid communication with the cleaning fluid delivery pump, and the groove 301 is formed in the inner side of the circular arc slide rail 3 and is matched with the shift lever 102, the pressing valve 103, the first nozzle 8 and the second nozzle 9, so that when the gear ring 4 rotates, the shift lever 102 obliquely extrudes the corresponding pressing valve 103, the corresponding nozzle sprays cleaning fluid, the support roller 502 is kept in a clean state on the advancing direction of the circular arc slide rail 3, the surface of the circular arc slide rail 3 is always kept in a clean state, the service lives of the circular arc slide rail 3 and the support roller 502 are prolonged, and the running stability of the whole equipment is improved.
The working process is as follows: when the shield machine is used, the outer fixing ring 1 is fixed with the shield machine through the connecting plate 2, the hydraulic motor 7 and the hydraulic cylinder 614 are connected with a hydraulic station, and the input end of the pressing valve 103 is communicated with cleaning liquid;
when grouting is needed to be carried out on a certain specific position, the hydraulic motor 7 is started, the hydraulic motor 7 drives the gear ring 4 to rotate to drive the support frame 501 to move synchronously, the support roller 502 rolls on the arc slide rail 3 to play a role in supporting and positioning the gear ring 4, the support frame 501 drives the adjustable grouting mechanism 6 to move, after the support frame is rotated to a needed position point, the hose 611 is connected with a grouting pump, the hydraulic cylinder 614 is controlled to move in a reciprocating mode, the hydraulic cylinder 614 extends to drive the head pipe 605 to swing towards a duct piece, when the hydraulic cylinder 614 contracts, the head pipe 605 is driven to swing towards the wall of a tunnel, the grouting pump is started, the grouting pump performs grouting at a certain pressure, the grout enters the outer sleeve 601 and the inner pipe 602, under the pressure, the inner pipe 602 is jacked to extend out of the outer sleeve 601 to enable the head pipe 605 to be inserted into a gap, and the grout pushes the sealing block 606 to open against the resistance of the second spring 608 along with the gradual increase of the grouting pressure, the slurry is sprayed out from the gap between the sealing block 606 and the head pipe 605, and the slurry is sprayed to the tunnel wall and the segment along with the swing of the head pipe 605; when grouting is stopped, the inner pipe 602 contracts and returns under the action of the first spring 604, and the sealing block 606 is sealed with the head pipe 605 again under the action of the second spring 608;
when the gear ring 4 moves, the cleaning liquid delivery pump is started, the gear ring 4 synchronously drives the bottom plate 10 and the shifting lever 102 to move, the shifting lever 102 is inserted into the groove 301, when the bottom plate 10 and the shifting lever 102 move, under the action of the groove 301, the end part of the shifting lever 102 is pushed to incline towards the rear part of the moving direction, the tension spring 101 at one side of the shifting lever 102 is tensioned, the shifting lever 102 inclines to press the corresponding pressing valve 103, the corresponding pressing valve 103 is opened, the cleaning liquid flows to the corresponding spray head positioned in the front of the moving direction through the pressing valve 103, the cleaning liquid is sprayed to the arc slide rail 3 to clean the arc slide rail 3, the shifting lever 102 is tensioned by the stretched tension spring 101, so that the end part of the shifting lever 102 is always tightly attached to the surface of the arc slide rail 3 and continuously falls into the groove 301, the corresponding pressing valve 103 is continuously pressed to be opened and closed, and the pulse cleaning and flushing arc slide rail 3 is realized, when the gear ring 4 stops moving, the washing liquid delivery pump is closed; the ring gear 4 reverse motion opens the washing liquid delivery pump again, and ring gear 4 drives bottom plate 10 and driving lever 102 reversal, and driving lever 102 falls into recess 301 back, is promoted the slope by the reversal, and the pressure valve 103 that opens before loses to press and closes, and driving lever 102 inclines to the opposite side simultaneously and presses the pressure valve 103 of moving the opposite side, makes it open to open another shower nozzle, clear up the circular arc slide rail 3 that lies in the supporting roller the place ahead during to the antiport.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications are possible which remain within the scope of the appended claims.
Claims (7)
1. The subway shield synchronous grouting cleaning device for the sludge soft soil layer is characterized by comprising an outer fixing ring (1), an arc slide rail (3) fixed in the outer fixing ring (1), a supporting mechanism (5) and a circumferential driving mechanism, wherein the inner side wall of the arc slide rail (3) is connected with three or more supporting mechanisms (5) in a sliding manner along the circumferential direction of the arc slide rail, the circumferential driving mechanism is coaxially arranged in the outer fixing ring (1), the outer side wall of the circumferential driving mechanism is fixedly connected with the supporting mechanism (5), and the supporting mechanism (5) is fixedly connected with an adjustable grouting mechanism (6); fixedly connected with connecting plate (2) on outer solid fixed ring (1), outer solid fixed ring (1) passes through connecting plate (2) fixed connection is at the afterbody of shield structure machine, the slip casting end of adjustable slip casting mechanism (6) inserts in the gap between section of jurisdiction and tunnel wall.
2. The subway shield synchronous grouting cleaning device for the muddy soft ground layer as claimed in claim 1, wherein said adjustable grouting mechanism (6) comprises a telescopic component and an angle adjusting component, said angle adjusting component is fixedly connected to the side wall of said supporting mechanism (5), said telescopic component is fixedly connected to the adjusting end of said angle adjusting component, and the end of said telescopic component is inserted into the gap between the duct piece and the tunnel wall.
3. The subway shield synchronous grouting cleaning device for the muddy soft ground layer as claimed in claim 2, wherein said angle adjusting assembly comprises two fixing plates (612), a fixing block (613), a hydraulic cylinder (614) and a frame (615), opposite surfaces of first ends of the two fixing plates (612) are fixedly connected with two ends of the fixing block (613), two ends of the frame (615) are respectively and rotatably connected with opposite surfaces of second ends of the two fixing plates (612) through pin shafts, a raised bump is arranged in the middle of the frame (615), one end of the hydraulic cylinder (614) is hinged with a side wall of the fixing block (613), and the other end of the hydraulic cylinder (614) is hinged with a side wall of the bump at the top of the frame (615); the telescopic assembly comprises an outer sleeve (601), an inner tube (602) and a head tube (605), the outer sleeve (601) is coaxially sleeved on the inner tube (602), a sealing sleeve (603) is fixedly connected to the wall of the first end of the inner tube (602), the outer side wall of the sealing sleeve (603) is in sealing fit with the inner wall of the outer sleeve (601), a first spring (604) is sleeved on the surface of the inner tube (602), the first end of the first spring (604) is overlapped with the end part of the sealing sleeve (603), the second end of the first spring (604) is overlapped on the inner top wall of the second end of the outer sleeve (601), the second end of the inner tube (602) is communicated with the first end of the head tube (605) through fluid, a sealing block (606) is in sealing fit with the second end of the head tube (605), and a fixing frame (607) is fixedly connected to the middle part of the inner wall of the head tube (605), a guide hole is formed in the middle of the fixing frame (607), a guide rod (609) is fixedly connected to the inner side wall of the sealing block (606), the end portion of the guide rod (609) penetrates through the guide hole and is fixedly connected with a baffle (610), a second spring (608) is sleeved on the guide rod (610), one end of the second spring (608) is overlapped with the side wall of the baffle (610), the other end of the second spring (608) is overlapped with the side wall of the fixing frame (607), and a hose (611) is communicated with a first end of the outer sleeve (601) through fluid; the outer sleeve (601) is fixedly connected to the frame (615); the first end of the fixing plate (612) is fixedly connected to the side wall of the supporting mechanism (5).
4. The subway shield synchronous grouting cleaning device for the muddy soft ground layer as claimed in claim 3, wherein said sealing block (606) is in the shape of a truncated cone, the inner wall of the second end of said head pipe (605) is in the shape of a cone, and the tapered side wall of said sealing block (606) is in sealing fit with the inner wall of the second end of said head pipe (605).
5. The subway shield synchronous grouting cleaning device for the muddy soft soil layer according to claim 1, wherein the supporting mechanism (5) comprises a supporting frame (501), a supporting roller (502), the supporting roller (502) is rotatably arranged in the supporting frame (501), the side wall of the supporting roller (502) is lapped on the side wall of the arc slide rail (3), and one end of the supporting frame (501) is fixedly connected with the side wall of the circumferential driving mechanism.
6. The subway shield synchronous grouting cleaning device for the muddy soft ground layer according to claim 5, wherein a first nozzle (8) and a second nozzle (9) are fixedly connected to two sides of the support frame (501) respectively, the first nozzle (8) and the second nozzle (9) are both arranged towards the arc slide rail (3), a bottom plate (10) is arranged on one side of the support frame (501), the bottom plate (10) is fixedly connected to the side wall of the circumferential driving mechanism, a shift lever (102) is rotatably connected to the side wall of the bottom plate (10), a pressing valve (103) is fixedly connected to two sides of the bottom plate (10), the pressing end of the pressing valve (103) is lapped with the side wall of the shift lever (102), tension springs (101) are symmetrically and fixedly connected to two sides of the shift lever (102), and the other ends of the two tension springs (101) are fixedly connected to the bottom plate (10) respectively, a groove (301) is formed in the inner side wall surface of the arc sliding rail (3) along the circumferential direction of the arc sliding rail, the shifting rod (102) is inserted into the groove (301), the output end of one pressing valve (103) is communicated with the fluid of the first spray head (8), and the output end of the other pressing valve (103) is communicated with the fluid of the second spray head (9).
7. The subway shield synchronous grouting cleaning device for the muddy soft ground layer according to claim 1, wherein the circumferential driving mechanism comprises a gear ring (4) and a hydraulic motor (7), the gear ring (4) is arranged in the outer fixing ring (1), the outer wall of the gear ring (4) is fixedly connected with the end part of the supporting mechanism (5), a gear is fixedly connected to an output shaft of the hydraulic motor (7), the hydraulic motor (7) is in transmission connection with the gear ring (4) through the gear, and the side wall of the hydraulic motor (7) is fixedly connected with the outer fixing ring (1) through a bracket.
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| CN202111196465.5A CN114017046B (en) | 2021-10-14 | 2021-10-14 | Synchronous grouting cleaning device for subway shield in muddy soft soil stratum |
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| CN202111196465.5A CN114017046B (en) | 2021-10-14 | 2021-10-14 | Synchronous grouting cleaning device for subway shield in muddy soft soil stratum |
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| CN114017046B CN114017046B (en) | 2023-12-01 |
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| CN114017046B (en) | 2023-12-01 |
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