CN113089578A

CN113089578A - Construction device and construction method for combined thin anti-seepage wall for danger removal and reinforcement of earth and rockfill dam

Info

Publication number: CN113089578A
Application number: CN202110388987.9A
Authority: CN
Inventors: 潘峰; 沈加府; 凡守富; 潘琪; 江林峰
Original assignee: Xiangsheng Construction Engineering Co ltd
Current assignee: Xiangsheng Construction Engineering Co ltd
Priority date: 2021-04-12
Filing date: 2021-04-12
Publication date: 2021-07-09

Abstract

The application relates to a construction device and a construction method of a combined thin impervious wall for danger removal and reinforcement of an earth and rockfill dam, and belongs to the technical field of impervious wall construction. The construction device comprises a rack and a guide rail, wherein an installation rod is arranged on the rack, a first working part and a second working part are respectively arranged on two sides of the installation rod, the first working part is used for spraying high-pressure spray mortar, the second working part is used for vibrating and sinking a mold, a rotating device is arranged on the rack and is used for driving the installation rod to rotate, and the rack is arranged on the guide rail in a sliding manner along the length direction of the guide rail; the device also comprises a driving assembly, and the driving assembly is used for driving the belt frame to move on the guide rail. The construction method has the effect of improving the construction quality of the thin impervious wall.

Description

Construction device and construction method for combined thin anti-seepage wall for danger removal and reinforcement of earth and rockfill dam

Technical Field

The application relates to the technical field of diaphragm wall construction, in particular to a construction device and a construction method for a danger-removing and reinforcing combined thin diaphragm wall of an earth and rockfill dam.

Background

In the process of constructing a reservoir dam, a concrete impervious wall is generally adopted as a vertical impervious facility of the reservoir dam, and the concrete impervious wall is more and more widely applied in the process of constructing the reservoir dam because the impervious effect of the concrete impervious wall is reliable.

The concrete impervious wall has more construction methods, including pile columns, sheet pile perfusion type, trough plate type, slurry trough perfusion type and the like, and has different application scenes and advantages. However, the inventor believes that in the construction process, due to the fact that construction geology is complex, and the requirement for construction quality of the thin impervious wall is high, the construction requirement of the impervious wall with high quality is difficult to meet through a single construction process.

Disclosure of Invention

In order to improve the construction quality of the thin impervious wall, the application provides a construction device and a construction method of a combined type thin impervious wall for danger removal and reinforcement of an earth-rock dam.

In a first aspect, the application provides an earth and rockfill dam danger removal and reinforcement combined type thin impervious wall construction device, which adopts the following technical scheme:

a combined thin impervious wall construction device for removing danger and reinforcing earth and rockfill dams comprises a rack and a guide rail, wherein an installation rod is arranged on the rack, a first working part and a second working part are respectively arranged on two sides of the installation rod, the first working part is used for spraying high-pressure spray grout, the second working part is used for vibrating and sinking a mold, a rotating device is arranged on the rack and is used for driving the installation rod to rotate, and the rack is arranged on the guide rail in a sliding mode along the length direction of the guide rail; the belt conveyor further comprises a driving assembly, and the driving assembly is used for enabling the belt conveyor frame to move on the guide rail.

By adopting the technical scheme, when the construction of the impervious wall is carried out, firstly, the guide rail is installed to a construction point, then the rack is installed on the guide rail, then the rotating device drives the installation rod to rotate, the first working part is aligned to the construction point, the high-pressure jet grouting is started to carry out construction on the deep layer of the construction point, then the driving assembly drives the rack to move along the guide rail, the high-pressure jet grouting can be carried out on the construction point one by one, then the installation rod is rotated through the rotating device, the second working part is aligned to the construction point, and the shallow layer of the construction point can be subjected to vibration sinking formwork, so that the construction of the impervious wall is finished, and the high-pressure jet grouting and vibration sinking formwork combined operation can adapt to construction geology with various complex working conditions, so that the construction quality of the thin impervious wall can be effectively improved.

Optionally, the rotating device includes a first driving source, the mounting rod is rotatably disposed on the rack in the vertical direction, and the first driving source is configured to drive the mounting rod to rotate; the limiting part is arranged on the rack and used for limiting the rotation angle of the mounting rod.

By adopting the technical scheme, the first driving source is started, the first driving source drives the mounting rod to deflect, and then drives the first working part and the second working part to deflect, so that construction of a construction point is realized, in the construction process, no matter high-pressure grouting injection or vibration sinking of a mold is carried out, certain vibration can be inevitably generated in the working process, at the moment, the rotating angle of the mounting rod is limited through the limiting part, the situation that in the process, the position of the mounting rod is greatly deviated can be effectively prevented, the construction precision of the device in the construction process can be effectively improved, and the construction quality of the thin impervious wall is further improved.

Optionally, a bottom plate is arranged at the bottom of the rack, the bottom plate is connected with the guide rail in a sliding manner, a limiting plate is fixedly arranged at the bottom of the mounting rod, and the limiting plate is rotatably arranged on the bottom plate; the limiting part comprises a limiting pin, a through hole penetrating through the limiting plate is formed in the limiting plate, and the limiting pin penetrates through the through hole and is connected with the bottom plate in an inserting mode.

Through adopting above-mentioned technical scheme, because the working structure of first work portion and second work portion is different, consequently first work portion has different weight with second work portion, drive installation pole pivoted in-process through first driving source, it is balanced to the installation pole through the limiting plate, can prevent effectively that the installation pole from rotating the skew that the in-process took place the position, reach the purpose that improves thin cut-off wall construction quality, and when needs were injectd the position of installation pole, the spacer pin passes perforation and bottom plate plug-in connection, the position of position fixed mounting pole through fixed limiting plate, the operation has been made things convenient for, and the work efficiency is improved.

Optionally, the top of bottom plate is provided with the axis of rotation along the direction rotation of perpendicular to bottom plate top surface, coaxial cover is equipped with the sleeve in the axis of rotation, the bottom fixed connection of sleeve and limiting plate, first driving source is used for driving the axis of rotation and rotates, be provided with first elastic component in the sleeve, first elastic component is used for ordering about the sleeve and keeps the relative position with the axis of rotation.

Through adopting above-mentioned technical scheme, start first driving source, it rotates to drive the axis of rotation, along with the rotation of axis of rotation, first elastic component atress, thereby be used in on the sleeve, it rotates to drive the sleeve, it rotates to reach the drive installation pole, and then the purpose of adjustment first work portion and second work portion position, after the position adjustment of first work portion and second work portion is suitable, this moment the spacer pin is through perforating and the grafting is accomplished to the bottom plate, thereby fix limiting plate and telescopic position, the axis of rotation continues to rotate under the effect of first driving source this moment, compress first elastic component then, the time that has given the staff comparatively sufficient closes first driving source, thereby protection device's effect has been played, the reliability of device in the use has been improved.

Optionally, a second elastic piece is arranged on the limiting plate and used for driving the limiting pin to move towards the bottom plate, and a pull ring used for pulling the limiting pin is fixedly arranged on the limiting pin.

By adopting the technical scheme, in the rotating process of the limiting plate, the limiting pin always has the direction moving towards the bottom plate under the action of the second elastic piece, and when the mounting rod rotates to a proper position, the limiting pin is connected with the bottom plate in an inserting manner, so that the position of the limiting plate is fixed, the rotating angle of the mounting rod can be limited timely, and the precision of the device is improved; when the installation rod needs to be adjusted to rotate, the limiting pin can be driven to be separated from the bottom plate to be contacted through pulling the pull ring, and operation of workers is facilitated.

Optionally, one end of the limiting pin, which is close to the bottom plate, is provided with a ball which is in rolling contact with the bottom plate, the top of the bottom plate is provided with an annular groove which is connected with the end of the limiting pin in a sliding manner, and the bottom wall of the annular groove is provided with a plurality of limiting holes for inserting the limiting pin.

Through adopting above-mentioned technical scheme, at limiting plate pivoted in-process, the tip of spacer pin is located the inside of ring channel all the time, and with the diapire butt of ring channel, sliding friction between spacer pin and the ring channel diapire becomes rolling friction through the ball, frictional force between spacer pin and the ring channel diapire has been reduced remarkably, the motion of spacer pin has been made things convenient for, and at the gliding in-process of spacer pin, the tip of spacer pin is in the ring channel all the time, thereby the guard action of certain degree has been played to the tip of spacer pin, the service life of device has been improved.

Optionally, a rack is fixedly arranged on the guide rail along the length direction of the guide rail; the driving assembly comprises an incomplete gear, the incomplete gear is rotatably arranged at the top of the bottom plate and is used for being meshed with the rack; and a second driving source for driving the incomplete gear to rotate.

By adopting the technical scheme, the second driving source is started, the incomplete gear is driven to rotate, the bottom plate can be driven to move on the guide rail after the incomplete gear is meshed with the rack, the bottom plate loses driving force after the incomplete gear is disengaged from the rack, namely, the bottom plate stops moving on the guide rail, the second driving source is shut down by a worker within a long reaction time, the advancing precision of the bottom plate is improved, the construction quality of the thin anti-seepage wall is further improved, and meanwhile, the operation of the worker is facilitated.

Optionally, the incomplete gear is detachably connected with the bottom plate.

By adopting the technical scheme, the incomplete gears with different sizes are replaced according to the construction lengths of different cut-off walls, so that the advancing distance of the incomplete gear which rotates for a circle to drive the bottom plate is adjusted to adapt to different construction lengths, the time for repeatedly adjusting the position of the bottom plate is reduced, the working hours are saved, the efficiency is improved, the cut-off walls can be formed in shorter time, and the construction quality of the cut-off walls is further improved.

In a second aspect, the application provides a construction method for a reinforced combined thin impervious wall of an earth and rockfill dam, which adopts the following technical scheme:

the construction method of the combined thin anti-seepage wall for danger removal and reinforcement of the earth and rockfill dam adopts the construction device for construction and comprises the following steps:

s1: installing a guide rail at a construction point along a construction direction, and installing a rack on the guide rail;

s2: starting a rotating device to drive the mounting rod to rotate, and performing high-pressure jet grouting on the deep layer of the construction point by using a first working part;

s3: the driving assembly drives the rack to move along the guide rail, the rack moves to a next construction point, and high-pressure grouting injection is carried out on a deep layer of the next construction point through the first working part;

s4: repeating S3 until the deep high-pressure jet grouting injection operation of all construction points is completed;

s5: starting a rotating device to drive the mounting rod to rotate, and using a second working part to vibrate and sink the shallow layer of the construction point;

s6: the driving assembly drives the rack to move along the guide rail, the rack moves to a next construction point, and the second working part is used for vibrating and sinking the shallow layer of the next construction point;

s7: repeating S6 until finishing the shallow vibration sinking operation of all the construction points;

s8: and pouring concrete into the formwork, and taking the formwork after the concrete is solidified to finish the construction of the impervious wall.

By adopting the technical scheme, when the thin impervious wall is constructed, the first working part and the second working part are positioned on the same frame, the first working part and the second working part can be driven to rotate through the rotating device so as to construct different depths of construction points, different construction places can be adapted, and the thin impervious wall has good working condition adaptability, so that the construction quality of the thin impervious wall can be remarkably improved.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the installation rod is provided with a plurality of working parts with different construction effects, so that the installation rod can adapt to different construction scenes, and the construction quality of the thin impervious wall is improved;

2. in the process of driving the mounting rod to rotate, the driving force is transmitted from the rotating shaft to the sleeve through the first elastic piece so as to drive the mounting rod to rotate, and after the mounting rod rotates to a proper position and is fixed in position through the limiting pin, the first elastic piece allows the rotating shaft and the sleeve to continuously generate relative movement, so that a first driving source is protected;

3. the bottom plate is driven to move through the incomplete gear, and after the bottom plate moves to a proper position, a worker is given longer reaction time to shut down the second driving source, so that the moving precision of the bottom plate is improved.

Drawings

FIG. 1 is a schematic overall structure diagram of an embodiment of the present application;

fig. 2 is an exploded cross-sectional view of a base plate and a limiting plate of an embodiment of the present application;

FIG. 3 is an exploded cross-sectional view of a sleeve and rotating shaft according to an embodiment of the present application;

FIG. 4 is an exploded view of a limiter according to an embodiment of the present disclosure;

FIG. 5 is a front view of a drive assembly of an embodiment of the present application.

Description of reference numerals: 1. a frame; 11. a base plate; 111. a rotating shaft; 112. accommodating grooves; 113. a carrier plate; 114. perforating; 115. an inner ring gear; 116. an annular groove; 117. a guide wheel; 12. a vertical rod; 13. mounting a rod; 131. a first working section; 1311. a first hydraulic cylinder; 1312. a high pressure nozzle; 132. a second working section; 1321. a second hydraulic cylinder; 1322. a punch; 133. a limiting plate; 134. a sleeve; 135. a first elastic member; 2. a guide rail; 21. a fixing strip; 22. positioning the bolt; 23. a rack; 3. a drive assembly; 31. an incomplete gear; 32. a second drive source; 33. mounting a plate; 4. a rotating device; 41. a first drive source; 411. a drive gear; 42. a limiting member; 421. a through hole; 422. a limiting hole; 423. a second elastic member; 424. a butting block; 425. a pull ring; 426. a groove; 427. a ball bearing; 428. a dust-proof sheet.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

Aiming at the dam foundation of medium and small dam bodies such as earth and rockfill dams and the like and the seepage-proofing engineering of the dam bodies, a single seepage-proofing technology is difficult to be applied due to the fact that the seepage-proofing depth, the thickness of a seepage-proofing wall, the engineering cost, the working condition of a construction point and the like are complex. The vibration sinking die technology is generally applied to the diaphragm wall when the construction depth is less than 20m, and the diaphragm wall template is driven into the ground so as to realize the anti-seepage effect; the high-spray grouting technology is generally applied to the construction depth of the impervious wall more than 20m, and is used for impacting and cutting a soil body by utilizing a high-speed jet beam, and is coagulated into a continuous impervious structure body after being stirred by strong disturbance, so that seepage prevention is realized.

In a first aspect, the embodiment of the application discloses a construction device for a combined thin impervious wall for danger removal and reinforcement of an earth and rockfill dam.

Referring to fig. 1, the combined thin cut-off wall construction device for danger removal and reinforcement of an earth and rockfill dam comprises a frame 1, a guide rail 2 and a driving assembly 3. The frame 1 is arranged on the guide rail 2 along the length direction of the guide rail 2 in a sliding manner, and the driving assembly 3 is used for driving the frame 1 to move on the guide rail 2.

Referring to fig. 1, the rack 1 includes a bottom plate 11, a vertical rod 12 and a mounting rod 13, the bottom plate 11 is slidably disposed on the guide rail 2 along a length direction of the guide rail 2, the vertical rod 12 is disposed on the bottom plate 11 along a direction perpendicular to a top surface of the bottom plate 11, the mounting rod 13 is welded at one end of the vertical rod 12 far away from the bottom plate 11, and the length direction of the mounting rod 13 is parallel to the top surface of the bottom plate 11. The first working portion 131 is attached to one end of the mounting rod 13, and the second working portion 132 is attached to the other end.

The first working part (131) is high-pressure spray grouting equipment and comprises a first hydraulic cylinder (1311) and a high-pressure nozzle (1312), the first hydraulic cylinder (1311) is fixedly installed at one end of an installation rod (13) through a bolt, the high-pressure nozzle (1312) is communicated with the hydraulic cylinder, the high-pressure nozzle (1312) sinks to a preset depth in the using process, a soil body is impacted and cut by using a high-speed jet beam, and the high-speed jet beam is mixed and stirred by strong disturbance and then is condensed into a continuous seepage-proofing structure body, so that the structure and the composition of an original stratum are changed, the aim of improving the seepage-proofing performance of a foundation or a filling body is fulfilled, and the construction of the seepage-proofing structure of a deep layer.

Referring to fig. 1, the second working portion (132) is a vibration die sinking apparatus, and includes a second hydraulic cylinder (1321) and a punch (1322), the second hydraulic cylinder (1321) is fixedly mounted at the other end of the mounting rod (13) by bolts, and the punch (1322) is welded and fixed to a piston rod of the second hydraulic cylinder (1321). In the construction process, after the construction of the deep impervious structure of the construction point is finished, the second hydraulic cylinder (1321) is started to drive the punch head (1322) to drive the impervious formwork into the dam body, and then concrete is poured into the formwork to finish the integral construction of the impervious wall.

Referring to fig. 1 and 2, the top of the mounting rod 13 is welded with a limiting plate 133, the limiting plates 11 are parallel to each other, the top of the bottom plate 11 is rotatably mounted 133 along a direction perpendicular to the top surface of the bottom plate 11, and has a rotating shaft 111 at the bottom, the bottom of the limiting plate 133 is welded with a sleeve 134, the sleeve 134 is rotatably sleeved on the rotating shaft 111, and the rotating shaft 111 and the sleeve 134 are in transmission connection.

Referring to fig. 2, a rotating device 4 for driving the mounting rod 13 to rotate is disposed on the frame 1, and the rotating device 4 includes a first driving source 41 and a limiting member 42. As an embodiment of this application, refer to fig. 2, first driving source 41 establishes to rotating the motor, and holding tank 112 has been seted up at the top of bottom plate 11, rotates the motor and installs in holding tank 112, and passes through bolted connection between the diapire of rotating motor and holding tank 112, and the output shaft that rotates the motor sets up and wears out holding tank 112 along vertical direction.

Wherein, referring to fig. 3, the welding of notch department of holding tank 112 has loading board 113, the top of loading board 113 and the top butt of axis of rotation 111 are used for bearing axis of rotation 111, set up the perforation 114 that the output shaft that supplies the rotation motor wore out on the loading board 113, through the coaxial fixedly connected with drive gear 411 of shaft coupling on the output shaft of rotation motor, the inside cavity of axis of rotation 111 sets up, the welding has interior ring gear 115 on the lateral wall of the inside cavity of axis of rotation 111, interior ring gear 115 is used for meshing with drive gear 411.

When the installation rod 13 needs to be driven to rotate, when the positions of the first working portion 131 and the second working portion 132 are adjusted, the rotating motor is started, the rotating motor drives the driving gear 411 to rotate, the driving gear 411 drives the inner ring gear 115 to rotate, and then drives the rotating shaft 111 to rotate, the rotating shaft 111 drives the sleeve 134 to rotate, the sleeve 134 drives the vertical rod 12 to rotate through the limiting plate 133, and therefore the installation rod 13 is driven to rotate.

In the actual use, the bottom of axis of rotation 111 and the top of loading board 113 between the coating have certain lubricating oil usually to reduce the frictional force between axis of rotation 111 bottom and the loading board 113 top, make the more convenient rotation of axis of rotation 111, improve the transmission efficiency of whole device.

As another embodiment of the present application, the first driving source 41 may be a power source such as a gasoline engine or a diesel engine capable of providing rotational power to the rotating shaft 111, and the specific selection criteria may be selected according to power requirements and cost requirements during actual construction of a project.

The stopper 42 is used to limit the rotation angle of the mounting rod 13. Referring to fig. 4, as an embodiment of this application, locating part 42 establishes to the spacer pin, set up the through-hole 421 that runs through the spacer pin 133 on the spacer pin 133, the spacer pin slides and wears to establish in the through-hole 421, set up on the bottom plate 11 and supply spacer pin male spacing hole 422, spacing hole 422 has seted up a plurality ofly, the concrete quantity in spacing hole 422, choose for use according to the quantity of different work portions, as an embodiment of this application, spacing hole 422 has seted up two, two spacing holes 422 set up along the axis central symmetry of montant 12.

Start first driving source 41 and drive axis of rotation 111 and rotate, and then drive limiting plate 133 through sleeve 134 and rotate, along with limiting plate 133's rotation, drive the spacer pin and rotate, after through-hole 421 is coaxial with spacing hole 422, the spacer pin can insert in spacing hole 422 to the realization is to the fixed of limiting plate 133 position, reaches the limited action to installation pole 13 turned angle.

The second elastic member 423 is disposed on the limit plate 133, and the second elastic member 423 is used for driving the limit pin to move toward the bottom plate 11. As an embodiment of the present application, referring to fig. 4, the second elastic element 423 is provided as a tension spring, the tension spring is coaxially sleeved on the limit pin, one end of the limit pin, which is far away from the bottom plate 11, is welded with the abutting block 424, one end of the tension spring is welded with the abutting block 424, and the other end of the tension spring is welded with the top of the limit plate 133.

In the process that the limiting plate 133 rotates, the limiting pin always has a tendency of moving towards the bottom plate 11 under the action of the second elastic piece 423, and after the limiting hole 422 is coaxial with the through hole 421, the limiting pin is inserted into the limiting hole 422, so that the position of the limiting plate 133 is fixed, and the purpose of fixing the rotating angle of the mounting rod 13 is achieved.

In the construction process of the device, the limiting pin always feels a trend of moving towards the limiting hole 422 under the action of the second elastic piece 423, so that the situation that the limiting pin is separated from the limiting pin due to the vibration of a machine to cause the deflection of the vertical rod 12 and the mounting rod 13 can be effectively avoided, and the reliability and the safety of the construction device in the construction process are improved.

As another embodiment of the present application, the second elastic member 423 may also be an elastic member having a resetting function, such as an elastic rope or an elastic sheet, and the specific selection criteria are selected according to the cost and reliability of the engineering practical use process.

Referring to fig. 4, a pull ring 425 is welded at one end of the abutting plate far away from the limit pin, and the pull ring 425 is used for pulling the limit pin to move. When the rotation angle of the installation rod 13 needs to be adjusted, the pull ring 425 is pulled towards the direction away from the bottom plate 11, and the limit pin can be driven to be away from the limit hole 422, so that the limit pin is separated from the connection with the bottom plate 11, and the purpose of adjusting the position of the installation rod 13 is achieved.

Referring to fig. 4, a groove 426 is formed at one end of the stopper pin close to the bottom plate 11, and a ball 427 in rolling contact with the bottom plate 11 is installed in the groove 426. In-process of driving limiting plate 133 pivoted, the spacer pin is under the effect of second elastic component 423, the tip of spacer pin all the time with the top butt of bottom plate 11, becomes rolling friction through ball 427 with the sliding friction between spacer pin and the bottom plate 11 top, has obviously reduced the frictional force between spacer pin and the bottom plate 11 top, has made things convenient for the slip of spacer pin.

Referring to fig. 2 and 4, the top of the bottom plate 11 is provided with an annular groove 116 slidably connected to the end of the stopper pin, the ball 427 is in rolling contact with the bottom wall of the annular groove 116, and the stopper hole 422 is provided in the bottom wall of the annular groove 116. In the motion process of spacer pin, the spacer pin and the lateral wall butt of ring channel 116 can reduce effectively that the spacer pin inclines, leads to being difficult to insert the condition appearance in spacing hole 422, has improved the reliability of construction equipment in the use.

Referring to fig. 4, the wall of the limiting hole 422 is provided with a dust-proof piece 428, and the dust-proof piece 428 is a plastic dust-proof piece 428. In one embodiment of the present application, four dust-proof sheets 428 are mounted, the four dust-proof sheets 428 are uniformly distributed along the axis of the limiting hole 422, and a gap is formed between two adjacent dust-proof sheets 428. As other embodiments of the present application, the dust-proof pieces 428 may have three, five, etc. pieces, and the specific number is selected according to the working conditions of the construction site, when the gravel is large, the number of the dust-proof pieces 428 is small, and when the gravel is fine, the number of the dust-proof pieces 428 is small, so as to improve the dust-blocking effect on the premise of ensuring the cost.

The sleeve 134 is provided at the inside thereof with a first elastic member 135, and the first elastic member 135 serves to urge the sleeve 134 to maintain a relative position with respect to the rotational shaft 111. As an embodiment of the present application, as shown in fig. 3, the first elastic member 135 is a torsion spring, the torsion spring is sleeved on the rotation shaft 111, one end of the torsion spring is welded to the outer wall of the rotation shaft 111, and the other end is welded to the inner wall of the sleeve 134.

After the rotating shaft 111 is driven to rotate by the first driving source 41, the rotating shaft 111 drives the sleeve 134 to rotate through the first elastic member 135, and the sleeve 134 drives the vertical rod 12 through the limiting plate 133 and further drives the mounting rod 13 to rotate, so as to adjust the positions of the first working portion 131 and the second working portion 132. Wherein, the spacer pin rotates along with the rotation of limiting plate 133, after the spacer pin inserts in spacing hole 422, the position of limiting plate 133 is fixed promptly, can't continue to rotate to it is all fixed with the position of sleeve 134 and montant 12, axis of rotation 111 can still rotate under the drive of first driving source 41 this moment, play the effect of buffering and protection of certain degree to first driving source 41 through first elastic component 135, improved the reliability of device in the use.

Referring to fig. 1 and 5, a fixing strip 21 is welded on the guide rail 2 along the length direction of the guide rail 2, the length of the fixing strip 21 is matched with that of the guide rail 2, a plurality of positioning bolts 22 are installed on the fixing strip 21, and in the process of installing the guide rail 2, the positioning bolts 22 penetrate through the fixing strip 21 and are nailed into the ground, so that the fixing and installation of the position of the guide rail 2 are completed.

Referring to fig. 1 and 5, four guide wheels 117 adapted to the guide rail 2 are installed at the bottom of the bottom plate 11, and in the process that the bottom plate 11 moves along the length direction of the guide rail 2, the guide wheels 117 are in rolling contact with the guide rail 2, so that the friction between the bottom plate 11 and the guide rail 2 is significantly reduced, and the movement of the bottom plate 11 is facilitated.

The drive assembly 3 comprises a partial gear 31 and a second drive source 32. Referring to fig. 5, as an embodiment of the present application, the second driving source 32 is a driving motor, the mounting plate 33 is welded to the bottom of the bottom plate 11, the driving motor is fixed to the mounting plate 33 by bolts, and the incomplete gear 31 is coaxially and fixedly connected to an output shaft of the driving motor by a coupling.

Referring to fig. 5, the rack 23 is welded to the rail 2 along the longitudinal direction of the rail 2, the length of the rack 23 is adapted to the length of the rail 2, and the incomplete gear 31 is used to engage with the rack 23.

When the bottom plate 11 needs to be driven to move, the driving motor is started, the driving motor drives the incomplete gear 31 to rotate, the bottom plate 11 can be driven to move after the incomplete gear 31 is meshed with the rack 23, the bottom plate 11 stops moving after the gear teeth of the incomplete gear 31 are separated from the rack 23, the incomplete gear 31 rotates, the bottom plate 11 cannot be driven to move, the long reaction time is given to a worker to determine to continue to start the driving motor or stop the driving motor, and therefore the precision of the moving distance of the bottom plate 11 on the guide rail 2 is guaranteed.

As another embodiment of the present application, the first driving source 41 may be a power source such as a gasoline engine or a diesel engine that can drive the incomplete gear 31 to make circular motion, and the specific selection mode is selected reasonably according to different working conditions.

The implementation principle of the combined thin impervious wall construction device for danger removal and reinforcement of the earth and rockfill dam in the embodiment of the application is as follows:

when thin cut-off wall construction needs to be carried out, firstly, the guide rail 2 is installed, the bottom plate 11 is installed on the guide rail 2, the second driving source 32 is started to drive the rotating shaft 111 to rotate, the rotating shaft 111 drives the sleeve 134 to rotate, the sleeve 134 drives the vertical rod 12 and the installation rod 13 to deflect through the limiting plate 133, the limiting plate 133 drives the limiting pin to be inserted into the limiting hole 422, the position of the installation rod 13 is fixed, the first working part 131 is aligned to a construction point at the moment, then, high-pressure jet grouting injection is carried out on a deep layer, the driving assembly 3 is started to drive the bottom plate 11 to move along the guide rail 2, and high-pressure jet grouting injection is carried out on the deep layer. After the deep operation of the construction point is completely finished, the limitation of the limiting pin on the positions of the limiting plate 133 and the mounting rod 13 is removed, the mounting rod 13 is driven to rotate through the second driving piece, the second working part 132 is aligned to the construction point, the limiting pin is inserted into the limiting hole 422 again to fix the position of the mounting rod 13, then the vibration sinking die can be carried out, the driving assembly 3 is started, the bottom plate 11 can be driven to move along the guide rail 2, and the vibration sinking die of the whole construction point is completed. And then pouring concrete into the template, and taking out the template after the concrete is solidified, thereby completing the construction of the impervious wall.

On the other hand, the embodiment of the application also discloses a construction method for the reinforced combined type thin impervious wall of the earth and rockfill dam.

A construction method for a reinforced combined type thin impervious wall of an earth and rockfill dam is adopted for construction, and comprises the following steps:

s1: installing a guide rail 2 at a construction point along a construction direction, and installing a rack 1 on the guide rail 2;

s2: starting the rotating device 4 to drive the mounting rod 13 to rotate, and performing high-pressure grouting injection on the deep layer of the construction point by using the first working part 131;

s3: the driving assembly 3 drives the rack 1 to move along the guide rail 2, the rack 1 moves to the next construction point, and the deep layer of the next construction point is subjected to high-pressure grouting injection through the first working part 131;

s5: starting the rotating device 4 to drive the mounting rod 13 to rotate, and using the second working part 132 to carry out vibration sinking on the shallow layer of the construction point;

s6: the driving component 3 drives the rack 1 to move along the guide rail 2, the rack 1 moves to the next construction point, and the second working part 132 vibrates and sinks the shallow layer of the next construction point;

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides an earth and rockfill dam removes dangerous reinforcement combination formula thin cut-off wall construction equipment which characterized in that: the spraying machine comprises a rack (1) and a guide rail (2), wherein the rack (1) comprises an installation rod (13), a first working part (131) and a second working part (132) are arranged on two sides of the installation rod (13), the first working part (131) is used for spraying high-pressure spray mortar, the second working part (132) is used for vibrating and sinking a mold, a rotating device (4) is arranged on the rack (1), the rotating device (4) is used for driving the installation rod (13) to rotate, and the rack (1) is arranged on the guide rail (2) in a sliding manner along the length direction of the guide rail (2);

the device is characterized by further comprising a driving assembly (3), wherein the driving assembly (3) is used for driving the rack (1) to move on the guide rail (2).

2. The apparatus for constructing a combined thin cut-off wall for danger removal and reinforcement of an earth and rockfill dam according to claim 1, wherein: the rotating device (4) comprises a first driving source (41), the mounting rod (13) is arranged on the rack (1) in a rotating mode, and the first driving source (41) is used for driving the mounting rod (13) to rotate;

the mounting structure is characterized by further comprising a limiting piece (42), wherein the limiting piece (42) is arranged on the machine frame (1), and the limiting piece (42) is used for limiting the rotating angle of the mounting rod (13).

3. The apparatus for constructing a combined thin cut-off wall for danger removal and reinforcement of an earth and rockfill dam according to claim 2, wherein: the rack (1) further comprises a bottom plate (11), the bottom plate (11) is connected with the guide rail (2) in a sliding mode, a limiting plate (133) is fixedly arranged at the bottom of the mounting rod (13), and the limiting plate (133) is rotatably arranged on the bottom plate (11);

the limiting piece (42) comprises a limiting pin, a through hole (114) penetrating through the limiting piece (133) is formed in the limiting piece (133), and the limiting pin penetrates through the through hole (114) and is connected with the bottom plate (11) in an inserting mode.

4. The apparatus for constructing a combined thin cut-off wall for danger removal and reinforcement of an earth and rockfill dam according to claim 3, wherein: the top of bottom plate (11) is provided with axis of rotation (111) along the direction rotation of perpendicular to bottom plate (11) top surface, coaxial cover is equipped with sleeve (134) on axis of rotation (111), the bottom fixed connection of sleeve (134) and limiting plate (133), first driving source (41) are used for driving axis of rotation (111) and rotate, be provided with first elastic component (135) in sleeve (134), be connected through first elastic component (135) transmission between sleeve (134) and axis of rotation (111).

5. The apparatus for constructing a combined thin cut-off wall for danger removal and reinforcement of an earth and rockfill dam according to claim 3, wherein: the limiting plate (133) is provided with a second elastic piece (423), the second elastic piece (423) is used for driving the limiting pin to move towards the direction of the bottom plate (11), and a pull ring (425) used for pulling the limiting pin is fixedly arranged on the limiting pin.

6. The apparatus for constructing a combined thin cut-off wall for danger removal and reinforcement of an earth and rockfill dam according to claim 3, wherein: one end of the limiting pin, which is close to the bottom plate (11), is provided with a ball (427) which is in rolling contact with the bottom plate (11), the top of the bottom plate (11) is provided with an annular groove (116) which is connected with the end part of the limiting pin in a sliding manner, and the bottom wall of the annular groove (116) is provided with a plurality of limiting holes (422) for the limiting pin to be inserted.

7. The apparatus for constructing a combined thin cut-off wall for danger removal and reinforcement of an earth and rockfill dam according to claim 3, wherein: a rack (23) is fixedly arranged on the guide rail (2) along the length direction of the guide rail (2);

the driving assembly (3) comprises an incomplete gear (31) and a second driving source (32) for driving the incomplete gear (31) to rotate, the incomplete gear (31) is rotatably arranged at the top of the bottom plate (11), and the incomplete gear (31) is used for being meshed with the rack (23).

8. The apparatus for constructing a combined thin cut-off wall for danger removal and reinforcement of an earth and rockfill dam according to claim 7, wherein: the incomplete gear (31) is detachably connected with the bottom plate (11).

9. A construction method of a combined thin cut-off wall for danger elimination and reinforcement of earth and rockfill dams, which is characterized in that the construction method is carried out by using the construction device of any one of the claims 1 to 8, and comprises the following steps:

s1: installing a guide rail (2) at a construction point along a construction direction, and installing a rack (1) on the guide rail (2);

s2: starting a rotating device (4) to drive an installation rod (13) to rotate, and performing high-pressure grouting injection on the deep layer of a construction point by using a first working part (131);

s3: the driving assembly (3) drives the rack (1) to move along the guide rail (2), the rack (1) moves to the next construction point, and high-pressure grouting injection is carried out on the deep layer of the next construction point through the first working part (131);

s5: starting the rotating device (4) to drive the mounting rod (13) to rotate, and using the second working part (132) to vibrate and sink the shallow layer of the construction point;

s6: the driving assembly (3) drives the rack (1) to move along the guide rail (2), the rack (1) moves to a next construction point, and the second working part (132) is used for vibrating and sinking the shallow layer of the next construction point;