CN113914654A - Grouting device for ecological restoration of concrete cracks - Google Patents
Grouting device for ecological restoration of concrete cracks Download PDFInfo
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- CN113914654A CN113914654A CN202111349020.6A CN202111349020A CN113914654A CN 113914654 A CN113914654 A CN 113914654A CN 202111349020 A CN202111349020 A CN 202111349020A CN 113914654 A CN113914654 A CN 113914654A
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- E—FIXED CONSTRUCTIONS
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- E04G23/00—Working measures on existing buildings
- E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
- E04G23/0203—Arrangements for filling cracks or cavities in building constructions
- E04G23/0211—Arrangements for filling cracks or cavities in building constructions using injection
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Abstract
The invention discloses a grouting device for ecological restoration of concrete cracks, which comprises a box body I and a box body II which are arranged side by side, wherein a grouting hole I, a grouting hole II and a grouting hole III are formed in an adjusting base; the steel wire vertically runs through the box body II and extends towards the tail end of the guide conduit after the adjusting base, the end part of the guide conduit is provided with a semicircular end head, and the side wall of the guide conduit is provided with a plurality of guniting holes. The invention applies the microorganism induced deposition calcium carbonate (MICP) technology to the filling of the concrete member crack, and simultaneously can realize the target plugging of the leakage point in the deep part of the crack, enhance the diffusion efficiency of the slurry and further improve the plugging effect.
Description
Technical Field
The invention relates to the field of building construction, in particular to a grouting device for ecological restoration of concrete cracks.
Background
Concrete members are widely used in the field of civil construction because of their high strength, easy availability of materials, strong moldability and good integrity. However, concrete is a typical porous brittle material, and is affected by adverse factors such as temperature change, corrosion and aging, cracks with various widths are inevitably propagated in the member due to damage and accumulation under the action of long-term load, and the mechanical property of the member is reduced while the structural durability is threatened. The traditional concrete structure crack repairing method such as a surface sealing method, a groove chiseling and filling method, a grouting and leaking stoppage method and the like has a series of problems of high energy consumption, high cost, environment-unfriendliness, secondary damage to a building structure and the like. The current MICP grouting experiment shows that part of calcium carbonate formed by microbial deposition in a common grouting mode is distributed at the front end of a crack, so that deep repair of a curing liquid and a subsequent step grouting process are hindered, and the crack cannot be effectively and integrally plugged.
Disclosure of Invention
The invention aims to provide a grouting device for ecological restoration of concrete cracks, which is convenient for performing targeted plugging on leakage points in the deep part of the cracks so as to improve the diffusion efficiency of grouting.
The invention is realized by the following technical scheme: the automatic grouting device comprises a box body I and a box body II which are arranged side by side, wherein a piston is arranged in the box body I, a push rod is arranged on the upper surface of the piston, the upper end of the push rod movably penetrates through the top of the box body II and then extends outwards, an adjusting base is arranged at the bottom of the box body II, a grouting hole I, a grouting hole II and a grouting hole III are formed in the adjusting base, the bottom of the box body I is communicated with the grouting hole II, the bottom of the box body II is communicated with the grouting hole I, a foldable guide pipe communicated with the grouting hole I is arranged at the bottom of the adjusting base, an adjusting component is arranged in the adjusting base and used for controlling the opening and closing of the grouting hole I and the grouting hole II; the horizontal grouting device is characterized by further comprising a steel wire with an axis parallel to the axis of the grouting hole I, wherein the steel wire vertically and movably penetrates through the box body II and extends to the tail end of the guide pipe after the adjusting base is adjusted, the end part of the guide pipe is provided with a semicircular end head, and the side wall of the guide pipe is provided with a plurality of grouting holes. In the prior art, aiming at the problem that multiple width gaps are generated in a concrete member due to internal damage accumulation under the long-term load effect, repair methods such as a surface sealing method, a groove chiseling and filling method and a grouting and plugging method are generally adopted, the repair methods are not only high in construction cost and not friendly to the environment, but also can cause secondary damage of the concrete member, and therefore, an applicant develops a grouting device for the defects, applies a microorganism induced and deposited calcium carbonate (MICP) technology to the crack filling of the concrete member, can realize targeted plugging of leakage points in the deep part of the crack, enhances the diffusion efficiency of grout, and further improves the plugging effect.
The specific implementation process is as follows: firstly, detecting the internal condition of a crack by using a crack detector, sealing the upper surface of a region to be repaired by using a sealing gasket, and respectively selecting a reserved grouting point position and a monitoring point position on the sealing gasket according to the condition, wherein the grouting point position is a targeted injection part, and the monitoring point position is a monitoring control part; when the crack needs to be blocked in a targeted mode, a grouting device is installed on a grouting point, a monitoring point is installed on the monitoring point, a mixed liquid I of a curing liquid and a microbial liquid is injected into a box body II, a steel wire is driven to drive a guide pipe to move to the crack until the crack reaches the targeted injection point, an adjusting component is used for blocking the grouting hole II, the grouting hole I is opened at the same time, the mixed liquid I moves along the grouting hole I and the guide pipe through pressure injection into the box body II, and finally the mixed liquid is injected into the crack through an injection hole to achieve the purpose of targeted injection, after the targeted injection is completed, the adjusting component blocks the grouting hole II, and then the steel wire retracts to drive the guide pipe to move out of the crack.
After the target injection is completed, wide area injection is started to the concrete member, the grouting hole II is opened through adjustment of the adjusting assembly, the grouting hole I is plugged, the treated mixed liquid II of the microbial liquid and the nutrient solution is injected into the box body I, pressurization treatment is performed in the box body I, the mixed liquid II moves to each crack of the concrete member along the grouting hole II, the mixed liquid II is treated, namely the microbial liquid and the nutrient solution start to react when the mixed liquid II reaches the deepest part of the crack, the generated calcium carbonate substances can repair the crack, a pressure pump is arranged at the monitoring point, the pressure intensity in the crack can be controlled, the mixed liquid II at the grouting point can be conveniently and smoothly moved to the crack, and when the mixed liquid II is detected at the monitoring point, the wide area injection of the concrete member is completed, mixture ii had filled the entire fracture. The technical scheme comprises two injection modes, namely target injection and wide area injection which are sequentially carried out, wherein the mixed solution I subjected to the target injection can react in real time, the generated calcium carbonate can timely plug a deep crack, and the mixed solution II subjected to the wide area injection can react to generate the calcium carbonate only when reaching the deepest part of the crack in a mode of controlling the flow rate; the combination of target injection and wide area injection can carry out orderly restoration to the crack that the degree of depth is different promptly, avoids the crack that the degree of depth is big not to realize restoreing and the leakage point appears, and then realizes effectual whole shutoff. It should be noted that the contact between the end of the steel wire and the tip will drive the guiding catheter to move in the crack, and the smooth tip can reduce the resistance of the guiding catheter to move in the crack to some extent.
The steel wire guiding device is characterized in that a columnar follow-up block is arranged on the outer circumferential wall of the tail end of the steel wire, the outer circumferential wall of the follow-up block is in contact with the inner wall of the guiding guide pipe, a plurality of communicating holes are formed in the end face of the follow-up block along the circumferential direction of the follow-up block, a limiting plate matched with the inner circumferential wall of the guiding guide pipe is further arranged on the inner circumferential wall of the guiding guide pipe, a plurality of rectangular through holes are formed in the middle of the limiting plate, and when the steel wire drives the guiding guide pipe to move, the outer circumferential wall of the follow-up block continuously keeps blocking the plurality of grout spraying holes. Furthermore, when the target injection is carried out on the deep crack, the guide catheter is moved to a target point, then the grouting is started, the follow-up block is arranged at the tail end of the steel wire, the follow-up block can continuously block the injection hole while the guide catheter moves, not only can the debris in the crack be prevented from entering the guide catheter along the injection hole, but also the grouting hole I can be opened while the steel wire drives the guide catheter to move, namely, the mixed liquid I can also be synchronously injected, when the end part of the guide catheter reaches the target point, a part of the steel wire is retracted, the follow-up block can move in the guide catheter, further, the blocking of the injection hole is removed, the mixed liquid I sequentially flows into the bottom of the guide catheter after passing through the grouting hole I, the communicating hole and the rectangular through hole, and the mixed liquid I gathered at the bottom of the guide catheter can be injected into the crack through the injection hole in the first time, to shorten the time of targeted injection; and when the guide catheter is retracted, the steel wire is pulled out, the upper end of the follow-up block is contacted with the lower surface of the limiting handle, so that the follow-up block and the guide catheter do not move relatively any more, and the follow-up block and the guide catheter are moved out of the crack.
The adjusting assembly comprises a main shaft and a crank arm arranged in the middle of the main shaft, a plugging plate is arranged on the crank arm, the grouting hole I consists of a liquid inlet and a liquid outlet which are communicated with each other, the liquid inlet is communicated with the interior of the box body II, the liquid outlet is communicated with the starting end of the guide conduit, the inner diameter of the liquid outlet is smaller than the horizontal length of the plugging plate, the inner diameter of the liquid outlet is larger than that of the liquid inlet, the crank arm is arranged in the liquid inlet, one end of the main shaft movably penetrates through the adjusting base and then extends outwards, a blind hole is formed in the inner circumferential wall of the grouting hole II, the grouting hole II is communicated with the liquid inlet through the guide hole, the other end of the main shaft movably penetrates through the guide hole and then extends towards the bottom of the blind hole, and a water permeable hole is formed in the outer wall of the main shaft along the radial direction; in the initial state, the water permeable hole is arranged in the guide hole, the axis of the water permeable hole is parallel to the axis of the grouting hole II, and the lower end of the liquid outlet is sealed by the plug plate. Furthermore, the adjusting assembly can realize the opening and closing of the grouting hole I and the grouting hole II, and it needs to be noted that the opening and closing of the grouting hole I and the grouting hole II can be independently performed so as to meet different requirements during targeted injection or wide-area injection; the specific adjustment mode is as follows, the main shaft rotationally arranged on the adjusting base can realize motor driving or manual adjustment, in an initial state, the crank arm positioned on the main shaft is over against the liquid outlet, one end of the main shaft movably penetrates through the guide hole and then is rotationally arranged in the blind hole, at the moment, the part of the main shaft directly plugs the grouting hole II, the plug plate on the crank arm simultaneously plugs the lower end of the liquid outlet, namely, the grouting hole I and the grouting hole II realize complete plugging in the initial state; when the crack is subjected to targeted injection, the main shaft is rotated, the plug plate is separated from the lower end of the liquid outlet, namely the lower end of the liquid outlet is communicated with the upper end of the liquid inlet, and the mixed liquid I can enter the guide conduit from the box body II through the liquid outlet and the liquid inlet; when carrying out the wide area injection to the crack, the horizontal migration main shaft for under the prerequisite that the end surface carries out the shutoff under keeping the liquid outlet, the tip of main shaft removed towards the blind hole bottom, and the hole of permeating water that lies in the guiding hole this moment is arranged in slip casting hole II, and the plug board still keeps the shutoff to the liquid outlet this moment, and then realize the intercommunication in slip casting hole II, mix liquid II promptly and then can directly flow into the crack through slip casting II. The horizontal length of the plugging plate is smaller than the diameter of the liquid inlet, so that the plugging plate can generate certain horizontal displacement along with the bent arm, and the grouting hole II is conveniently opened on the premise of controlling the plugging of the grouting hole I.
An annular groove is formed in the inner circumferential wall of the guide hole along the circumferential direction of the guide hole, and a sealing ring is sleeved on the main shaft and is arranged in the annular groove. Furthermore, because the mixed liquid injected into the grouting holes I and II is different, and the guide holes for communicating the grouting holes I and II need to be sealed and protected when the main shaft passes through the guide holes, an annular groove is formed in the inner circumferential wall of each guide hole, and a sealing ring is sleeved on the main shaft, so that the main shaft is ensured to be isolated from the grouting holes I and II on the premise of free rotation.
A central cylinder is vertically arranged on the inner wall of the top of the box body II, the lower end of the central cylinder is connected with the inner wall of the bottom of the box body II, a partition plate is arranged on the inner circumferential wall of the lower section of the central cylinder, a universal ball is rotatably arranged in the middle of the partition plate, and the steel wire movably penetrates through the universal ball. Further, when the steel wire is moving or crooked adjustment to the crack, the steel wire local emergence deformation that is located box II is uncontrollable, and then leads to the terminal removal orbit in the crack of steel wire uncertain, to this, this technical scheme sets up central barrel in box II, and is equipped with the baffle at central barrel hypomere, and the steel wire passes universal ball, through the injecing to two positions of steel wire, and then guarantees that the bending deformation of steel wire is in a controllable state.
A plurality of through holes are arranged on the outer circumferential wall of the lower end of the central cylinder along the axial direction of the central cylinder. Preferably, a plurality of through holes are formed in the outer circumferential wall of the lower end of the central cylinder, so that the steel wire is exposed in the box body II, when the guide pipe and the steel wire are retracted, the universal ball can scrape the mixed liquid I remaining on the outer wall of the steel wire, calcium carbonate generated after the mixed liquid I reacts is prevented from being gathered in the closed central cylinder, and the scraped calcium carbonate and the residual liquid in the box body II can be collected and processed in a centralized mode.
The inner circumferential wall of the central cylinder body is provided with an adjusting cylinder matched with the inner circumferential wall, the inner circumferential wall of the adjusting cylinder body is provided with a plurality of sliding grooves along the axial direction of the adjusting cylinder, the longitudinal sections of the sliding grooves are arc-shaped, the depths of the sliding grooves are sequentially reduced from top to bottom, and in an initial state, the axis of the steel wire is superposed with the central line of the adjusting cylinder. Preferably, the adjusting cylinder is fixed in the central cylinder, the plurality of sliding grooves are formed in the inner wall of the adjusting cylinder, the steel wire can be assisted in accurately adjusting the advancing direction of the guide catheter, and the arc-shaped sliding grooves can prevent the steel wire from being deviated when a bending radian is guaranteed to be deep.
The upper end of the box body I is also provided with a grouting pipe communicated with the interior of the box body I. As the preferred, be equipped with the slip casting pipe on box I, can in time supply mixed liquid I in the box I to satisfy the restoration requirement of concrete member.
The locking assembly comprises a locking cylinder and a clamping ring in threaded fit with the outer wall of the locking cylinder, two bearing plates are arranged on the inner circumferential wall of the locking cylinder, two arc-shaped holes are formed in the outer circumferential wall of the locking cylinder along the circumferential direction of the locking cylinder, two connecting rods I are hinged to the inner circumferential wall of the clamping ring, the free end of each connecting rod I penetrates through the arc-shaped holes and then is hinged to one end of a connecting rod II, the other end of the connecting rod II is perpendicularly connected with a connecting rod III, connecting portions of the connecting rods II and the connecting rods III are hinged to the bearing plates, a locking block is arranged on the side wall of the connecting rod III, an arc-shaped clamping groove is formed in the end face of the locking block, and the two clamping blocks are rotationally symmetrical along the axis of the locking cylinder. Furthermore, when the crack is subjected to targeted injection, the mixed liquid I in the box body I is subjected to pressurization treatment, and in order to increase the precision of targeted injection, namely, the tail end of the guide catheter is prevented from deviating after reaching a target point position, and the steel wire needs to be fixed, in the technical scheme, the clamping ring is enabled to move around the circumferential direction of the locking cylinder by rotating the clamping ring, the connecting rod I is driven to move when the clamping ring is on, the connecting rod II and the connecting rod III which are perpendicular to each other are driven to rotate by the connecting rod I, namely, the two locking blocks move towards the direction close to the steel wire, and when the connecting rod I moves to the extreme position of the arc-shaped hole, the clamping grooves in the locking blocks are completely attached to the outer wall of the steel wire, so that the steel wire is fixed; on the contrary, when the steel wire is unlocked, the clamping ring is directly and reversely rotated.
Compared with the prior art, the invention has the following advantages and beneficial effects:
1. the grouting device for ecological restoration of the concrete cracks disclosed by the invention has the advantages that a microorganism induced deposited calcium carbonate (MICP) technology is applied to filling of the concrete member cracks, and meanwhile, the leakage point positions in the deep positions of the cracks can be blocked in a targeted manner, so that the diffusion efficiency of grout is enhanced;
2. the invention relates to a grouting device for ecological restoration of concrete cracks, which comprises two injection modes, namely target injection and wide area injection which are sequentially carried out, wherein the mixed solution I subjected to the target injection can react in real time, the generated calcium carbonate can timely block the cracks at deep positions, and the mixed solution II subjected to the wide area injection can react to generate the calcium carbonate only when reaching the deepest positions of the cracks in a mode of controlling the flow rate; the combination of the targeted injection and the wide-area injection can orderly repair the cracks with different depths, avoid leakage points caused by the incomplete repair of the cracks with large depths and further realize effective integral plugging;
3. according to the grouting device for ecological restoration of the concrete cracks, the adjusting base is further provided with the grouting hole III, the grouting hole III is communicated with the box body II, and when the cracks with small depth generated on the surface of a concrete member are restored, the grouting hole III is directly opened, so that the mixed liquid II can move into the cracks, and the instant blocking can be realized.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a top view of the adjustment base;
FIG. 3 is a cross-sectional view of the adjustment base;
FIG. 4 is an enlarged view taken at A of FIG. 1;
FIG. 5 is a schematic view of the retaining member;
fig. 6 is a schematic diagram of the present invention.
Reference numbers and corresponding part names in the drawings:
1-box body I, 2-push rod, 3-piston, 4-locking cylinder, 5-snap ring, 6-grouting pipe, 7-chute, 8-adjusting cylinder, 9-central cylinder, 10-box body II, 11-clapboard, 12-universal ball, 13-through hole, 14-adjusting base, 15-grouting hole I, 16-guide conduit, 17-steel wire, 18-grouting hole II, 19-water-gas separator, 20-grouting liquid, 21-grouting hole III, 22-crankshaft, 23-liquid inlet, 24-blanking plate, 25-liquid outlet, 26-water permeable hole, 27-annular groove, 28-sealing ring, 29-supporting plate, 30-arc hole, 31-connecting rod I, 32-connecting rod II, 33-connecting rod III, 34-locking block, 35-grouting point, 36-monitoring point, 37-sealing gasket, 38-fractured rock mass, 39-rectangular through hole, 40-limiting plate, 41-follow block, 42-communicating hole, 43-grout spraying hole, 44-end head and 45-placing hole.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not meant to limit the present invention.
Example 1
As shown in fig. 1 to 5, the present embodiment includes a box i 1 and a box ii 10 arranged side by side, a piston 3 is arranged in the box i 1, a push rod 2 is arranged on the upper surface of the piston 3, the upper end of the push rod 2 movably penetrates through the top of the box ii 10 and extends outwards, an adjusting base 14 is arranged at the bottom of the box ii 10, a grouting hole i 15, a grouting hole ii 18 and a grouting hole iii 21 are formed in the adjusting base 14, the bottom of the box i 1 is communicated with the grouting hole ii 18, the bottom of the box ii 10 is communicated with the grouting hole i 15, a foldable guide duct 16 communicated with the grouting hole i 15 is arranged at the bottom of the adjusting base 14, and an adjusting assembly is arranged in the adjusting base 14 and used for controlling the opening and closing of the grouting hole i 15 and the grouting hole ii 18; the mortar spraying device further comprises a steel wire 17 with the axis parallel to the axis of the grouting hole I15, the steel wire 17 vertically and movably penetrates through the box body II 10 and the adjusting base 14 and then extends to the tail end of the guide pipe 16, a semicircular end head 44 is arranged at the end part of the guide pipe 16, and a plurality of mortar spraying holes 43 are formed in the side wall of the guide pipe 16.
The specific implementation process of the embodiment is as follows: firstly, detecting the internal condition of a crack by using a crack detector, sealing the upper surface of a region to be repaired by using a sealing gasket 37, and respectively selecting a reserved grouting point 35 and a monitoring point 36 on the sealing gasket 37 according to the condition, wherein the grouting point 35 is a targeted injection part, and the monitoring point 36 is a monitoring control part; when a crack needs to be blocked in a targeted manner, a grouting device is installed on a grouting point 35, a monitoring device is installed on a monitoring point 36, a mixed liquid I of a curing liquid and a microbial liquid is injected into a box body II 10, a steel wire 17 is driven to drive a guide conduit 16 to move towards the crack until the crack reaches the targeted injection point, a grouting hole II 18 is blocked by an adjusting component, meanwhile, a grouting hole I15 is opened, at the moment, the mixed liquid I moves along the grouting hole I15 and the guide conduit 16 by injecting pressure into the box body II 10, and finally the mixed liquid I is injected into the crack through an injection hole to achieve the purpose of targeted injection, after the targeted injection is completed, the adjusting component blocks the grouting hole II 18, and then the steel wire 17 retracts to drive the guide conduit 16 to move out of the crack.
After the target injection is completed, wide-area injection is started to be performed on the concrete member, the grouting hole II 18 is opened through adjustment of the adjusting assembly, the grouting hole I15 is plugged, a processed mixed liquid II of microbial liquid and nutrient solution is injected into the box body I1, pressurization processing is performed in the box body I1, the mixed liquid II is moved to each crack of the concrete member along the grouting hole II 18, the mixed liquid II is processed, namely the microbial liquid and the nutrient solution start to react when the mixed liquid II reaches the deepest part of the crack, the generated calcium carbonate substances can repair the crack, a pressure pump is arranged at the monitoring point 36, the pressure intensity in the crack can be controlled, the mixed liquid II at the grouting point 35 can be conveniently moved to the crack smoothly, and when the mixed liquid II is detected at the monitoring point 36, the wide-area injection of the concrete member is completed, mixture ii had filled the entire fracture. The technical scheme comprises two injection modes, namely target injection and wide area injection which are sequentially carried out, wherein the mixed solution I subjected to the target injection can react in real time, the generated calcium carbonate can timely plug a deep crack, and the mixed solution II subjected to the wide area injection can react to generate the calcium carbonate only when reaching the deepest part of the crack in a mode of controlling the flow rate; the combination of target injection and wide area injection can carry out orderly restoration to the crack that the degree of depth is different promptly, avoids the crack that the degree of depth is big not to realize restoreing and the leakage point appears, and then realizes effectual whole shutoff.
In the embodiment, the adjusting base 14 is further provided with the grouting hole III 21, the grouting hole III 21 is communicated with the box body II 10, and when a crack with a small depth generated on the surface of a concrete member is repaired, the grouting hole III 21 is directly opened, so that the mixed liquid II can move to the crack, and instant plugging can be realized. In addition, a placement hole 45 is formed in the middle of the bottom surface of the adjustment base 14, and the guide catheter 16 can be directly received in the placement hole 45 after being retracted.
As the preferred, be equipped with slip casting pipe 6 on box I1, can in time supply mixed liquid I in box I1 to satisfy the restoration requirement of concrete member.
Example 2
As shown in fig. 4, in this embodiment, based on embodiment 1, a columnar follower block 41 is disposed on an outer circumferential wall of a distal end of the steel wire 17, an outer circumferential wall of the follower block 41 contacts an inner wall of the guide duct 16, a plurality of communication holes 42 are formed on an end surface of the follower block 41 along a circumferential direction of the follower block 41, a limit plate 40 is further disposed on an inner circumferential wall of the guide duct 16, a plurality of rectangular through holes 39 are formed in a middle portion of the limit plate 40, and when the steel wire 17 drives the guide duct 16 to move, the outer circumferential wall of the follower block 41 continuously blocks the plurality of grout spraying holes 43.
When the target injection is carried out on the deep crack, generally, the guide catheter 16 is moved to a target point, then the grouting is started, the follow-up block 41 is arranged at the tail end of the steel wire 17, the follow-up block 41 can continuously block the injection hole while the guide catheter 16 moves, not only can the debris in the crack be prevented from entering the guide catheter 16 along the injection hole, but also the grouting hole I15 can be opened while the steel wire 17 drives the guide catheter 16 to move, namely, the mixed liquid I can also be synchronously injected, when the end part of the guide catheter 16 reaches the target point, a part of the steel wire 17 is retracted, the follow-up block 41 can move in the guide catheter 16, further, the blocking of the injection hole is removed, the mixed liquid I sequentially flows into the bottom of the guide catheter 16 through the grouting hole I15, the communicating hole 42 and the rectangular through hole 39, and the mixed liquid I gathered at the bottom of the guide catheter 16 can be injected into the crack through the injection hole in the first time, to shorten the time of targeted injection; when the guide catheter 16 is retracted, the steel wire 17 is pulled out, and the upper end of the follow-up block 41 contacts with the lower surface of the limiting handle, so that the follow-up block 41 and the guide catheter 16 do not move relatively any more, and are removed from the crack together with the guide catheter 16.
Example 3
As shown in fig. 1 to 3, in this embodiment, based on embodiment 1, the adjusting assembly includes a main shaft, and a crank arm disposed in the middle of the main shaft, the crank arm is provided with a plug plate 24, the grouting hole i 15 is composed of a liquid inlet 23 and a liquid outlet 25 which are communicated with each other, the liquid inlet 23 is communicated with the inside of the box ii 10, the liquid outlet 25 is communicated with the beginning of the guiding conduit 16, the inner diameter of the liquid outlet 25 is smaller than the horizontal length of the plug plate 24, and the inner diameter of the liquid outlet 25 is larger than the inner diameter of the liquid inlet 23, the crank arm is disposed in the liquid inlet 23, one end of the main shaft movably penetrates through the adjusting base 14 and extends outward, a blind hole is opened on the inner circumferential wall of the grouting hole ii 18, the grouting hole ii 18 is communicated with the liquid inlet 23 through the guiding hole, the other end of the main shaft movably penetrates through the guiding hole and extends toward the bottom of the blind hole, and a water permeable hole 26 is opened on the outer wall thereof along the radial direction of the main shaft; the inner circumferential wall of the central cylinder 9 is provided with an adjusting cylinder 8 matched with the inner circumferential wall, the inner circumferential wall of the adjusting cylinder 8 is provided with a plurality of sliding grooves 7 along the axial direction of the adjusting cylinder 8, the longitudinal section of each sliding groove 7 is arc-shaped, the depth of each sliding groove 7 is reduced from top to bottom in sequence, and in an initial state, the axis of the steel wire 17 is superposed with the central line of the adjusting cylinder 8.
In this embodiment, the adjusting assembly can realize opening and closing of the grouting hole i 15 and the grouting hole ii 18, and it should be noted that opening and closing of the grouting hole i 15 and the grouting hole ii 18 can be performed independently to meet different requirements during targeted injection or wide-area injection; the specific adjustment mode is as follows, the main shaft rotationally arranged on the adjusting base 14 can realize motor driving or manual adjustment, in the initial state, the crank arm positioned on the main shaft is over against the liquid outlet 25, one end of the main shaft movably penetrates through the guide hole and then is rotationally arranged in the blind hole, at the moment, the part of the main shaft directly seals the grouting hole II 18, the plug plate 24 on the crank arm simultaneously seals the lower end of the liquid outlet 25, namely, the grouting hole I15 and the grouting hole II 18 realize complete sealing in the initial state; when the crack is subjected to targeted injection, the main shaft is rotated, the plug plate 24 is separated from the lower end of the liquid outlet 25, namely, the lower end of the liquid outlet 25 is communicated with the upper end of the liquid inlet 23, and the mixed liquid I can enter the guide conduit 16 from the box body II 10 through the liquid outlet 25 and the liquid inlet 23; when carrying out the wide area injection to the crack, the horizontal migration main shaft for under the prerequisite that blanking is carried out to the terminal surface under liquid outlet 25 to blanking plate 24, the tip of main shaft moved towards the blind hole bottom, and the hole 26 of permeating water that is located the guiding hole this moment is arranged in slip casting hole II 18 in, and blanking plate 24 still keeps the shutoff to liquid outlet 25 this moment, and then realize the intercommunication in slip casting hole II 18, mix liquid II promptly and then can directly flow into the crack through slip casting II.
When steel wire 17 is moving or crooked adjustment to the crack, the steel wire 17 local emergence deformation that is located box II 10 is uncontrollable, and then leads to the terminal removal orbit in the crack of steel wire 17 to be uncertain, to this, this technical scheme sets up central barrel 9 in box II 10, and is equipped with baffle 11 at central barrel 9 hypomere, and steel wire 17 passes universal ball 12, through the injecing to two positions of steel wire 17, and then guarantees that steel wire 17's bending deformation is in a controllable state. The adjusting cylinder 8 is fixed in the central cylinder 9, and the plurality of sliding grooves 7 formed in the inner wall of the adjusting cylinder can assist the steel wire 17 in accurately adjusting the advancing direction of the guide catheter 16, and the arc-shaped sliding grooves 7 can prevent the steel wire 17 from shifting when a bending radian is ensured to be deep.
Preferably, because the mixed liquid injected into the grouting holes I15 and II 18 is different, and the guide holes for communicating the grouting holes I15 and II 18 need to be sealed and protected when the main shaft passes through the guide holes, an annular groove 27 is formed in the inner circumferential wall of each guide hole, and a sealing ring 28 is sleeved on the main shaft to ensure that the grouting holes I15 and II 18 are isolated from each other on the premise of ensuring the free rotation of the main shaft.
Preferably, a plurality of through holes 13 are formed on the outer circumferential wall of the lower end of the central cylinder 9, so that the steel wire 17 is exposed in the box II 10, and when the guide conduit 16 and the steel wire 17 are retracted, the universal ball 12 can scrape the mixed liquid I remaining on the outer wall of the steel wire 17, so that calcium carbonate generated after the reaction of the mixed liquid I is prevented from being accumulated in the closed central cylinder 9, and the scraped calcium carbonate and the residual liquid in the box II 10 can be collected and processed in a centralized manner.
Example 4
As shown in fig. 6, in this embodiment, based on embodiment 1, the locking assembly includes a locking cylinder 4 and a snap ring 5 in threaded fit with an outer wall of the locking cylinder 4, two support plates 29 are disposed on an inner circumferential wall of the locking cylinder 4, two arc-shaped holes 30 are formed in an outer circumferential wall of the locking cylinder 4 along a circumferential direction of the locking cylinder 4, two connecting rods i 31 are hinged to an inner circumferential wall of the snap ring 5, a free end of each connecting rod i 31 penetrates through the arc-shaped hole 30 and then is hinged to one end of the connecting rod ii 32, the other end of the connecting rod ii 32 is vertically connected with a connecting rod iii 33, a connecting portion between the connecting rod ii 32 and the connecting rod iii 33 is hinged to the support plate 29, a locking block 34 is disposed on a side wall of the connecting rod iii 33, an arc-shaped slot is disposed on an end face of the locking block 34, and the two locking blocks are rotationally symmetric along an axis of the locking cylinder 4.
In the technical scheme, the clamping ring 5 is rotated to move around the circumferential direction of the locking cylinder 4, the connecting rod I31 is driven to move when the clamping ring 5 is rotated, the connecting rods II 32 and III 33 which are perpendicular to each other are driven by the connecting rod I31 to rotate, namely, the two locking blocks 34 move towards the direction close to the steel wire 17, and when the connecting rod I31 moves to the limit position of the arc-shaped hole 30, the clamping grooves in the locking blocks 34 are completely attached to the outer wall of the steel wire 17, so that the steel wire 17 is fixed; on the contrary, when the steel wire 17 is unlocked, the snap ring 5 is directly rotated reversely.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (9)
1. The utility model provides a slip casting device for ecological restoration of concrete crack, is equipped with piston (3) including box I (1), box II (10) that set up side by side in box I (1), and is equipped with push rod (2) at the upper surface of piston (3), and the activity runs through the outside extension after the top of box II (10) in push rod (2) upper end, its characterized in that: an adjusting base (14) is arranged at the bottom of the box body II (10), a grouting hole I (15), a grouting hole II (18) and a grouting hole III (21) are formed in the adjusting base (14), the bottom of the box body I (1) is communicated with the grouting hole II (18), the bottom of the box body II (10) is communicated with the grouting hole I (15), a guide pipe (16) which is communicated with the grouting hole I (15) and can be folded is arranged at the bottom of the adjusting base (14), an adjusting component is arranged in the adjusting base (14) and used for controlling the opening and closing of the grouting hole I (15) and the grouting hole II (18); the horizontal grouting device is characterized by further comprising a steel wire (17) with an axis parallel to the axis of the grouting hole I (15), wherein the steel wire (17) vertically penetrates through the box body II (10) and extends towards the tail end of the guide conduit (16) after the adjusting base (14) is adjusted, a semicircular end head (44) is arranged at the end part of the guide conduit (16), and a plurality of grouting holes (43) are formed in the side wall of the guide conduit (16).
2. The grouting device for ecological restoration of the concrete cracks as claimed in claim 1, wherein: be equipped with on the outer circumferential wall of steel wire (17) terminal and be cylindrical follow-up block (41), the outer circumferential wall of follow-up block (41) and guide pipe (16) inner wall contact, and along follow-up block (41) circumference at its terminal surface on open have a plurality of intercommunicating pores (42), still be equipped with limiting plate (40) that matches with it on guide pipe (16) inner circumferential wall, limiting plate (40) middle part is opened has a plurality of rectangle through-holes (39), when steel wire (17) drive guide pipe (16) and move, the outer circumferential wall of follow-up block (41) keeps constantly plugging a plurality of whitewashing holes (43).
3. The grouting device for ecological restoration of the concrete cracks as claimed in claim 1, wherein: the adjusting component comprises a main shaft and a crank arm arranged in the middle of the main shaft, a plug plate (24) is arranged on the crank arm, the grouting hole I (15) is composed of a liquid inlet (23) and a liquid outlet (25) which are mutually communicated, the liquid inlet (23) is communicated with the interior of the box body II (10), the liquid outlet (25) is communicated with the starting end of the guide conduit (16), the inner diameter of the liquid outlet (25) is smaller than the horizontal length of the plug plate (24), the inner diameter of the liquid outlet (25) is larger than that of the liquid inlet (23), the crank arm is arranged in the liquid inlet (23), one end of the main shaft movably penetrates through the adjusting base (14) and then extends outwards, a blind hole is formed in the inner circumferential wall of the grouting hole II (18), the grouting hole II (18) is communicated with the liquid inlet (23) through a guide hole, the other end of the main shaft movably penetrates through the guide hole and extends to the bottom of the blind hole, and a water permeable hole (26) is formed in the outer wall of the main shaft along the radial direction of the main shaft; in the initial state, the water permeable holes (26) are arranged in the guide holes, the axes of the water permeable holes (26) are parallel to the axis of the grouting hole II (18), and the lower ends of the liquid outlets (25) are closed by the plug plates (24).
4. The grouting device for ecological restoration of the concrete cracks as claimed in claim 3, wherein: an annular groove (27) is formed in the inner circumferential wall of the guide hole along the circumferential direction of the guide hole, a sealing ring (28) is sleeved on the main shaft, and the sealing ring (28) is arranged in the annular groove (27).
5. The grouting device for ecological restoration of the concrete cracks as claimed in claim 1, wherein: a central cylinder (9) is vertically arranged on the inner wall of the top of the second box body (10), the lower end of the central cylinder (9) is connected with the inner wall of the bottom of the second box body (10), a partition plate (11) is arranged on the inner circumferential wall of the lower section of the central cylinder (9), a universal ball (12) is rotatably arranged in the middle of the partition plate (11), and the steel wire (17) movably penetrates through the universal ball (12).
6. The grouting device for ecological restoration of the concrete cracks as claimed in claim 5, wherein: a plurality of through holes (13) are arranged on the outer circumferential wall of the lower end of the central cylinder body (9) along the axial direction.
7. The grouting device for ecological restoration of the concrete cracks as claimed in claim 1, wherein: the inner circumferential wall of the central cylinder body (9) is provided with an adjusting cylinder (8) matched with the inner circumferential wall, the inner circumferential wall of the adjusting cylinder (8) is provided with a plurality of sliding grooves (7) along the axial direction of the adjusting cylinder (8), the longitudinal sections of the sliding grooves (7) are arc-shaped, the depths of the sliding grooves (7) are sequentially reduced from top to bottom, and in an initial state, the axis of the steel wire (17) is superposed with the central line of the adjusting cylinder (8).
8. The grouting device for ecological restoration of the concrete cracks as claimed in claim 1, wherein: the upper end of the box body I (1) is also provided with a grouting pipe (6) communicated with the interior of the box body I (1).
9. The grouting device for ecological restoration of the concrete cracks as claimed in any one of claims 1 to 6, wherein: the locking component comprises a locking cylinder (4) and a snap ring (5) in threaded fit with the outer wall of the locking cylinder (4), two supporting plates (29) are arranged on the inner circumferential wall of the locking cylinder (4), two arc-shaped holes (30) are arranged on the outer circumferential wall of the locking cylinder (4) along the circumferential direction, two connecting rods I (31) are hinged on the inner circumferential wall of the clamping ring (5), the free end of each connecting rod I (31) penetrates through the arc-shaped hole (30) and then is hinged with one end of a connecting rod II (32), the other end of the connecting rod II (32) is vertically connected with a connecting rod III (33), and the connecting part of the connecting rod II (32) and the connecting rod III (33) is hinged with the supporting plate (29), the side wall of the connecting rod III (33) is provided with a locking block (34), the end face of the locking block (34) is provided with an arc-shaped clamping groove, and the two clamping blocks are rotationally symmetrical along the axis of the locking cylinder (4).
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