CN114754194A - Storage tank top pipe installation device and construction method thereof - Google Patents
Storage tank top pipe installation device and construction method thereof Download PDFInfo
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- CN114754194A CN114754194A CN202210308203.1A CN202210308203A CN114754194A CN 114754194 A CN114754194 A CN 114754194A CN 202210308203 A CN202210308203 A CN 202210308203A CN 114754194 A CN114754194 A CN 114754194A
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- 238000010276 construction Methods 0.000 title claims abstract description 21
- 238000009434 installation Methods 0.000 title claims abstract description 16
- 238000003860 storage Methods 0.000 title claims description 6
- 238000000034 method Methods 0.000 claims abstract description 14
- 229910000831 Steel Inorganic materials 0.000 claims description 28
- 239000010959 steel Substances 0.000 claims description 28
- 239000002689 soil Substances 0.000 claims description 24
- 238000003466 welding Methods 0.000 claims description 17
- 239000003831 antifriction material Substances 0.000 claims description 14
- 230000003014 reinforcing effect Effects 0.000 claims description 14
- 230000009974 thixotropic effect Effects 0.000 claims description 14
- 239000002002 slurry Substances 0.000 claims description 11
- 239000010802 sludge Substances 0.000 claims description 9
- 230000001681 protective effect Effects 0.000 claims description 6
- 238000007569 slipcasting Methods 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- 239000003638 chemical reducing agent Substances 0.000 claims description 5
- 230000006978 adaptation Effects 0.000 claims description 4
- 238000005259 measurement Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 6
- 238000009412 basement excavation Methods 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 4
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L1/00—Laying or reclaiming pipes; Repairing or joining pipes on or under water
- F16L1/024—Laying or reclaiming pipes on land, e.g. above the ground
- F16L1/028—Laying or reclaiming pipes on land, e.g. above the ground in the ground
- F16L1/038—Laying or reclaiming pipes on land, e.g. above the ground in the ground the pipes being made in situ
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L1/00—Laying or reclaiming pipes; Repairing or joining pipes on or under water
- F16L1/024—Laying or reclaiming pipes on land, e.g. above the ground
- F16L1/06—Accessories therefor, e.g. anchors
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The utility model belongs to the technical field of pipe jacking installation engineering technique and specifically relates to a regulation pond pipe jacking installation device and construction method thereof, and it is including setting up the bottom plate of foundation ditch bottom in the working well, be provided with advancing mechanism on the bottom plate, the one side of keeping away from advancing mechanism on the bottom plate is provided with bearing mechanism, bearing mechanism includes the hydraulic stem of fixed connection on the bottom plate and connects the connecting plate in the hydraulic stem upper end, be provided with the semi-circular support bracket that is used for fixed pipeline on the connecting plate, the joint seam of adjacent pipeline erects in the support bracket. This application has the operation of guaranteeing that pipeline locating position is end, the adjacent two sections pipe connection of being convenient for is fixed, is advanced in the top smoothly, and the running cost is low and saves time, efficient effect simultaneously.
Description
Technical Field
The application relates to the technical field of pipe jacking installation engineering, in particular to a regulating and storing tank pipe jacking installation device and a construction method thereof.
Background
The pipe-jacking construction is a non-excavation construction method, and is a pipeline burying construction technology without excavation or with less excavation.
In the related technology, after the previous section of pipeline is jacked into the soil layer, the second section of pipeline is jacked continuously, the principle is that by means of the thrust of a main jacking oil cylinder and the thrust among pipelines, a relay and the like, a tool pipe or a pipe jacking machine is pushed into a receiving well from a working well through the soil layer to be hoisted, the pipeline is buried between the two wells after following the tool pipe or the pipe jacking machine, and accordingly the construction method for laying the underground pipeline in a non-excavation mode is achieved.
Aiming at the related technologies, the inventor thinks that in the process of connecting the previous section of pipeline with the next section of pipeline, the pipeline is easy to be placed in a deviation manner, so that the pipeline has defects during welding and subsequent jacking operation is influenced.
Disclosure of Invention
In order to ensure that the arrangement positions of pipelines are correct, and two adjacent pipelines are convenient to connect, fix and smoothly jack in operation, the application provides a regulating storage tank jacking pipe installation device and a construction method thereof.
The application provides a pair of regulation pond push pipe installation device adopts following technical scheme:
the utility model provides a regulation pond push pipe installation device, is including setting up the bottom plate of foundation ditch bottom in the working well, be provided with advancing mechanism on the bottom plate, one side of keeping away from advancing mechanism on the bottom plate is provided with bearing mechanism, bearing mechanism includes the hydraulic stem of fixed connection on the bottom plate and connects the connecting plate in the hydraulic stem upper end, be provided with the semi-circular support bracket that is used for fixed pipeline on the connecting plate, the joint line of adjacent pipeline erects in the support bracket.
Through adopting the above technical scheme, utilize the bottom plate in the working well to play the joint support effect, advancing mechanism mainly used advances to the top of pipeline, bearing mechanism mainly used is to the support and the spacing fixed of pipeline, be convenient for adjust bearing mechanism's upper and lower position through the hydraulic stem, the connecting plate plays the monolithic linkage effect and is convenient for keep the position synchronization adjustment, utilize the support bracket to be convenient for weld the joint line of adjacent pipeline, adopt this device can guarantee that pipeline locating position holds just, be convenient for adjacent two sections pipeline is connected fixedly and the operation is advanced on smooth top, the running cost is low and save time simultaneously, high efficiency.
Optionally, the two ends of the support bracket are provided with connecting lugs, a middle groove for welding connecting joints of adjacent pipelines is formed between the connecting lugs of the support bracket, and the connecting joints of the adjacent pipelines are located in the middle of the middle groove.
By adopting the technical scheme, the connecting lugs have a connecting effect and are convenient for taking the supporting bracket, and the middle grooves are utilized to weld the connecting seams of the adjacent pipelines.
Optionally, advancing mechanism sets up to main jack, advancing mechanism's base fixed connection is on the bottom plate, advancing mechanism's output and the pipeline butt in the working well, last the being provided with of advancing mechanism with the laser theodolite that the pipeline central line flushes.
Through adopting above-mentioned technical scheme, utilize the main jack to be convenient for carry out the jacking operation to the pipeline, main jack fixed connection realizes spacing fixed on the bottom plate, utilizes the laser theodolite can guarantee that pipeline jacking deviation is minimum.
Optionally, a reinforcing brace is arranged on the support bracket at the weld joint of the inner walls of the adjacent pipelines, the reinforcing brace includes a plurality of expansion rings and a jack, a cylinder of the jack is fixedly connected to the ends of the expansion rings, and an output end of the jack is fixedly connected to the ends of the adjacent expansion rings.
By adopting the technical scheme, the compressive strength of the welding line of the inner wall of the adjacent pipeline can be enhanced by utilizing the expansion ring and the jack, the deformation of the welding line is avoided in the jacking process of the pipeline, and the smooth operation of jacking the pipeline is ensured.
Optionally, a protective structure is arranged at the end part of the pipeline, close to the propelling mechanism, on the supporting bracket, the protective structure comprises a rubber ring and two semicircular steel rings, the rubber ring is arranged between the end part of the pipeline and the semicircular steel rings, and the semicircular steel rings are abutted to the output end of the propelling mechanism.
Through adopting above-mentioned technical scheme, utilize the rubber ring can avoid the pipeline tip not to produce by the direct touching of advancing mechanism and collide with, two semi-circular steel rings mainly play the guard action and enlarge the lifting surface area, guarantee that the push pipe horizontal direction atress is even.
Optionally, a supporting structure is arranged at the bottom of the working well and close to the hole, the supporting structure comprises a grouting pipe and a reinforcing steel bar which are buried in a soil layer, a mouth protecting ring is arranged at the inner wall of the working well and close to the hole, the mouth protecting ring is welded with the reinforcing steel bar, and the mouth protecting ring is abutted to the end portion, close to the working well, of the grouting pipe.
Through adopting above-mentioned technical scheme, utilize slip casting pipe and reinforcing bar to consolidate the operation entrance to a cave, avoid the operation entrance to a cave soil body to collapse, the mouth guard circle can guarantee that thixotropic mud does not gush out from the aircraft nose shell.
Optionally, be provided with the pipe pushing jack along pipeline jacking direction in the soil layer, install the laser target with laser theodolite looks adaptation on the pipe pushing jack, the laser target is collinear with the pipeline center.
By adopting the technical scheme, the pipe jacking machine is convenient for cutting and transporting soil blocks in the jacking direction of the pipeline in the soil layer, the pipeline is convenient to jack, the laser target is arranged on the pipe jacking machine, so that the jacking line of the pipe jacking machine can be ensured to move forward, and deviation of the jacking line of the pipeline is avoided.
Optionally, the ground of working well upper portion is provided with the antifriction agent agitator pump, the output of antifriction agent agitator pump is provided with the mud pipe, mud pipe and the slip casting pipe connection of pipe pushing jack send the mud pipe.
By adopting the technical scheme, thixotropic slurry can be conveyed to the push bench through the slurry conveying pipe by using the friction reducer stirring pump, and the thixotropic slurry is ensured to form gel between a soil layer and a pipeline, so that the friction resistance of the pipeline in the jacking process is reduced.
Optionally, one side that the ground of working well upper portion is close to antifriction agent agitator pump is provided with the sludge pump, the sludge pump output is provided with the connecting pipe, the connecting pipe is connected with the row's mud pipe-line of pipe pushing jack.
Through adopting above-mentioned technical scheme, utilize the dredge pump to be convenient for in time discharge the earth grit that the jacking process produced through the connecting pipe, utilize usable earth cyclic utilization to the friction reducer agitator pump in the thixotropic mud of reformulating simultaneously.
A pipe jacking installation and construction method for a storage tank comprises the following steps:
determining a jacking route, digging a working well and a receiving well, and pouring and supporting the working well and the receiving well;
arranging a bottom plate at the bottom of the working well, and hoisting the propelling mechanism at a proper position of the bottom plate through measurement;
constructing a supporting structure for an opening to be constructed in the working well;
a crane is adopted to hoist the pipeline above the bearing mechanism, and the position of the bearing mechanism is adjusted to realize the limiting and fixing of the pipeline;
Reinforcing support is utilized to carry out reinforcing support on the inner wall welding seam of the pipeline;
jacking along a jacking route by using a pipe jacking machine, and jacking the pipeline forwards by using a pushing mechanism;
conveying thixotropic slurry by using an antifriction agent stirring pump to reduce the frictional resistance in the jacking process;
conveying the soil cut by the pipe jacking machine to the ground by using a sludge discharge pump;
the pushing mechanism pushes the pipeline forwards according to a jacking route, and retracts when the pipeline is pushed to the farthest position;
continuously hoisting the pipeline to the bearing mechanism, and realizing the limiting and fixing of the pipeline by using the bearing mechanism;
and repeating the propelling steps of the propelling mechanism on the pipelines until all the pipelines are installed in place.
In summary, the present application includes at least one of the following beneficial technical effects:
1. when the device is used, by adopting the technical scheme, the bottom plate in the working well is utilized to play a role in connection and support, the propelling mechanism is mainly used for jacking the pipeline, the bearing mechanism is mainly used for supporting and limiting and fixing the pipeline, the upper position and the lower position of the bearing mechanism are convenient to adjust through the hydraulic rod, the connecting plate plays a role in integral connection, the synchronous adjustment of the positions is convenient to keep, the bearing bracket is convenient to weld the connecting seams of the adjacent pipelines, the device can ensure that the pipeline is placed at a correct position, the connection and the fixation and the smooth jacking operation of the adjacent two pipelines are convenient, and meanwhile, the operation cost is low, time is saved, and the efficiency is high;
2. By adopting the technical scheme, the main jack is convenient for jacking the pipeline, the main jack is fixedly connected to the bottom plate to realize limiting and fixing, and the laser theodolite can ensure that the jacking deviation of the pipeline is minimum;
3. by adopting the technical scheme, the compressive strength of the welding line of the inner wall of the adjacent pipeline can be enhanced by utilizing the expansion ring and the jack, the deformation of the welding line is avoided in the jacking process of the pipeline, and the smooth operation of the jacking pipe is ensured.
Drawings
Fig. 1 is a schematic structural diagram of a main body of an embodiment of the present application.
Fig. 2 is a cross-sectional view of an embodiment of the present application.
Fig. 3 is a cross-sectional view of the supporting mechanism of the embodiment of the present application.
Description of the reference numerals: 1. a working well; 11. a base plate; 2. a propulsion mechanism; 21. a laser theodolite; 3. a support mechanism; 31. a hydraulic lever; 32. a connecting plate; 33. a support bracket; 331. connecting lugs; 332. an intermediate tank; 4. a pipeline; 5. a reinforcing support; 51. an expansion ring; 52. a jack; 6. a protective structure; 61. a rubber ring; 62. a semicircular steel ring; 7. a support structure; 71. a grouting pipe; 72. reinforcing steel bars; 73. a mouth guard ring; 8. a pipe jacking machine; 81. laser target; 9. a friction reducer agitator pump; 91. a mud conveying pipe; 10. a sludge discharge pump; 101. and (4) connecting the pipes.
Detailed Description
The present application is described in further detail below with reference to figures 1-3.
The pipe-jacking construction is a non-excavation construction method, is a pipeline burying construction technology without excavation or with less excavation, and is characterized in that the pipe-jacking construction is to overcome the defects of the pipeline and the surrounding soil by means of jacking force generated by jacking equipment in a working pit, jack the pipeline into the soil according to a designed gradient and transport away earthwork; after one section of pipeline is jacked into the soil layer, the second section of pipeline is jacked continuously, the principle is that a tool pipe or a pipe jacking machine penetrates through the soil layer from a working pit well by means of the thrust of a main jacking oil cylinder and the thrust of a pipeline chamber, a relay chamber and the like and is pushed into a receiving well to be hoisted, the pipeline is buried between the two wells after following the tool pipe or the pipe jacking machine, and accordingly the construction method for laying underground pipelines in a non-excavation mode is achieved.
The embodiment of the application discloses regulation pond ejector pipe installation device. Referring to fig. 1 to 3, the pipe jacking installation device for the regulation and storage tank comprises a propelling mechanism 2, a supporting mechanism 3 and a pipeline 4 which are arranged in a working well 1, wherein a reinforcing support 5 is arranged in the pipeline 4, a protective structure 6 is arranged at the end part, close to the propelling mechanism 2, of the pipeline 4, a supporting structure 7 is arranged at the position of a hole to be operated in the working well 1, a pipe jacking machine 8 is arranged in the hole along the jacking direction of the pipeline 4, and a friction reducing agent stirring pump 9 and a sludge discharge pump 10 are arranged on the ground of the upper part of the working well 1.
In the embodiment of the application, a working well 1 and a receiving well are dug at corresponding positions according to the jacking route of a pipeline 4, the working well 1 is arranged at the right side, the receiving well is arranged at the left side, the size of the working well 1 is 5400 x 1350mm, the size of the receiving well is 4000 x 4000mm, the working well 1 and the receiving well are both of an anchor-jet inverted-seat vertical shaft structure, firstly, the working well 1 and the receiving well are cast and supported, a given structural form is designed to adopt a steel bar locking collar beam, a side wall steel grating hanging steel bar net piece and a steel bar net piece bottom sealing support, the cross sections of the steel bar locking collar beam of the working well 1 and the receiving well are respectively 1000 x 600mm and 800 x 500mm, main ribs are C22 tie bars, the concrete strength grade of the locking collar beam is C30, a steel grating adopts vertical 0.5 m/net piece, a steel bar mesh is 150 x 150mm, the steel bar net piece and the steel bar net piece are bound into a whole, after the support of the working well 1 is completed, and leveling and pouring concrete at the bottom of the working well 1 to form a bottom plate 11, wherein the bottom plate 11 is mainly used for installing and fixing the propelling mechanism 2.
In the embodiment of the application, the pipe diameter of the pipeline 4 is 1000mm, the length of the pipeline 4 is 49m, the central line of the pipeline 4 is 10m away from the ground in the working well 1, and the muddy water balance mechanical pipe jacking method is adopted for construction according to construction soil quality detection, the muddy water balance pipe jacking machine is adopted for the pipe jacking machine 8, the application range of the pipe jacking machine 8 is wide, the stability of a tunneling surface can be effectively guaranteed, ground settlement is reduced, meanwhile, the total thrust is small, the muddy water pipeline is adopted for conveying abandoned soil, no dangerous operations such as hanging soil conveying and the like exist, in addition, the pipe jacking machine 8 is in continuous operation, and the operation efficiency can be effectively improved.
In the embodiment of the application, advancing mechanism 2 sets up to main jack, hoist main jack in the suitable position of bottom plate 11 according to measuring, base fixed connection with main jack is on bottom plate 11, main jack's output butt is at pipeline 4 butt, install laser theodolite 21 on main jack in addition, laser theodolite 21 flushes with pipeline 4's central line, install the laser target 81 with 21 looks adaptations of laser theodolite on push bench 8, laser target 81, pipeline 4 central line and the collineation of 21 three of laser theodolite, a line is advanced in the top for monitoring pipeline 4, guarantee that pipeline 4's top advances the deviation minimum.
In the embodiment of the application, in order to prevent the cave mouth soil body of the jacking line from collapsing, firstly, a supporting structure 7 is built at the cave mouth, before the cave mouth is opened, a grouting pipe 71 with the depth of 2.5m is driven into the range of 1.5m outside the cave mouth along the pipe jacking direction, the depth is not less than 1.5m, then, cement slurry is injected into the grouting pipe 71, then, a steel ring is welded by using a steel bar 72 and inserted into the grouting pipe 71, then, a mouth guard ring 73 is arranged at the cave mouth, the mouth guard ring 73 is a steel ring, and then, the steel bar 72 steel ring and the mouth guard ring 73 are welded to be connected into a whole with the cave wall, so that thixotropic slurry is prevented from gushing out from the head of the pipe jacking machine 8.
In this embodiment of the application, one side that is close to the entrance to a cave on bottom plate 11 is provided with supporting mechanism 3, supporting mechanism 3 includes two hydraulic stems 31, a connecting plate 32 and a semi-circular support bracket 33, the bottom fixed connection of two hydraulic stems 31 is at the upper surface of bottom plate 11, the bottom fixed connection of connecting plate 32 is on the top of two hydraulic stems 31, semi-circular support bracket 33 fixed connection is at the upper surface of connecting plate 32, can adjust the position of support bracket 33 from top to bottom through hydraulic stem 31 and connecting plate 32.
In the embodiment of the application, support bracket 33 sets up to semi-circular support, the inner wall profile radian of support and pipeline 4's external diameter profile looks adaptation, and be provided with engaging lug 331 at the both ends of support, engaging lug 331 mainly plays the connection effect and is convenient for take the operation to support bracket 33 simultaneously, middle groove 332 has been seted up between the engaging lug 331 of both ends, utilize the crane to hoist pipeline 4 to support bracket 33 top, realize the spacing fixed to pipeline 4 through supporting bracket 33, place middle groove 332 gap with the joint seam of two adjacent pipelines 4, be convenient for weld the joint seam of adjacent pipeline 4 through middle groove 332.
In the embodiment of the application, the inner wall welding seam of adjacent pipeline 4 on support bracket 33 is provided with the reinforcement and props 5, the reinforcement props 5 including three expansion ring 51 and three jack 52, the cylinder body fixed connection of jack 52 is at the tip of expansion ring 51, the output fixed connection of jack 52 is at the tip of adjacent expansion ring 51, utilize jack 52 to make adjacent expansion ring 51 keep away from each other, thereby make the outer wall of expansion ring 51 and the laminating of the inner wall welding seam of pipeline 4 inseparabler, strengthen the compressive strength of the inner wall welding seam of pipeline 4, guarantee that pipeline 4 carries on in-process not produce deformation in welding seam department, ensure that the operation of push pipe goes on smoothly.
In the embodiment of the present application, 4 end portions of the pipeline close to the propulsion mechanism 2 on the support bracket 33 are provided with the protection structure 6, the protection structure 6 includes the rubber ring 61 and two semicircular steel rings 62, the outer diameter of the rubber ring 61 and the semicircular steel rings 62 is greater than that of the pipeline 4, the rubber ring 61 is disposed between the end portion of the pipeline 4 and the semicircular steel rings 62, the semicircular steel rings 62 abut against the end portion of the output shaft of the propulsion mechanism 2, the rubber ring 61 can prevent the end portion of the pipeline 4 from being collided by the propulsion mechanism 2 due to direct touch, and the two semicircular steel rings 62 mainly play a protection role, so that the output shaft of the propulsion mechanism 2 is directly acted on the semicircular steel rings 62, thereby avoiding extrusion damage to the rubber ring 61, and simultaneously also enlarging the stress area of the output shaft of the propulsion mechanism 2, it is ensured that the stress of the pipeline 4 is uniform in the horizontal direction, and the jacking operation is convenient.
In the embodiment of the application, be provided with antifriction agent agitator pump 9 on the upper portion ground of working well 1 and receiving well, antifriction agent agitator pump 9 mainly provides thixotropic mud, antifriction agent agitator pump 9's output is provided with mud pipe 91, utilize centrifugal action to carry thixotropic mud to pipe 4 in through mud pipe 91 among the slip casting pipe of pipe jacking machine 8, guarantee that thixotropic mud forms the gel form between soil layer and pipeline 4 to reduce the frictional resistance of pipeline 4 at the jacking in-process.
In the embodiment of the application, left side at antifriction agent agitator pump 9 is provided with dredge pump 10, dredge pump 10 mainly used is with the earth grit separation that push bench 8 cut and carry ground, the output of dredge pump 10 is provided with connecting pipe 101, connecting pipe 101 is connected with push bench 8's row mud pipeline, the earth grit in the mud pipeline is separated through dredge pump 10, the direct loading of grit is transported away, the thixotropic mud is makeed again in usable earth extraction antifriction agent agitator pump 9, unavailable earth is excavated and is transported away after sun-drying factory dries.
In addition, in the embodiment of the application, the laser theodolite 21 arranged on the propulsion mechanism 2 is matched with the laser target 81 arranged on the pipe jacking machine 8, so that deviation rectification can be realized in the jacking process, and meanwhile, thixotropic slurry is used for replacing and excavating the soil body, the variable slurry is colloidal and has small constraint force, so that the deviation rectification of the pipeline 4 is facilitated, and the smooth operation of pipe jacking can be further ensured.
In the embodiment of the application, the pipeline 4 is pushed forwards by the pushing mechanism 2 according to the jacking route, the pushing mechanism 2 returns when the pipeline is pushed to the farthest position, the next section of pipeline 4 is continuously hoisted to the supporting mechanism 3 by using a crane, and after the pipeline 4 is welded in a limiting and fixing mode by using the supporting mechanism 3, the step of pushing the pipeline 4 forwards by the pushing mechanism 2 is continuously repeated until all the pipelines 4 are jacked in place and the tailing work is completed from the receiving well.
The implementation principle of the adjusting and storing tank top pipe installation device in the embodiment of the application is as follows: firstly, determining a jacking route of pipe jacking engineering construction, excavating a working well 1 and a receiving well at corresponding positions, then performing pouring support treatment on the working well 1 and the receiving well, pouring concrete at the bottom of the working well 1 to form a bottom plate 11, and hoisting a propelling mechanism 2 to a proper position of the bottom plate 11 for installation and fixation through measurement; then, a supporting structure 7 is built for an opening to be constructed in the working well 1, the supporting mechanism 3 is fixedly installed below the operation opening on the upper surface of the bottom plate 11, the pipeline 4 is hoisted to the upper side of the supporting mechanism 3 by a crane, the pipeline 4 is limited and fixed by the supporting bracket 33, meanwhile, the connecting joints of the adjacent pipelines 4 are welded by the middle groove 332 arranged on the supporting bracket 33, and then the inner wall welding seams of the pipeline 4 are reinforced and supported by the reinforcing support 5; and then jacking by using a pipe jacking machine 8 along a jacking route, conveying thixotropic slurry to a position between the pipe jacking machine 8 and the outer wall of the pipeline by matching with an anti-friction agent stirring pump 9, so as to reduce the friction resistance of the pipeline 4 in the jacking process, meanwhile, conveying the soil cut by the pipe jacking machine 8 to the ground by using a sludge discharge pump 10, pumping the recyclable soil into the anti-friction agent stirring pump 9 to prepare the thixotropic slurry again, jacking the pipeline 4 forwards along the jacking route by using a propelling mechanism 2 in the process, after the jacking of the previous section of pipeline 4 is completed, continuously hoisting the pipeline 4, realizing the welding of the connecting joints of the adjacent pipelines 4 by using a supporting mechanism 3, repeating the propelling step of the propelling mechanism 2 on the pipelines 4, and completing the tail ending work in a receiving well until all the pipelines 4 are jacked in place.
The above are preferred embodiments of the present application, and the scope of protection of the present application is not limited thereto, so: equivalent changes in structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (10)
1. The utility model provides a regulation pond ejector pipe installation device which characterized in that: including setting up bottom plate (11) of foundation ditch bottom in working well (1), be provided with advancing mechanism (2) on bottom plate (11), one side of keeping away from advancing mechanism (2) on bottom plate (11) is provided with supporting mechanism (3), supporting mechanism (3) are including hydraulic stem (31) of fixed connection on bottom plate (11) and connecting plate (32) of connection in hydraulic stem (31) upper end, be provided with semi-circular support bracket (33) that are used for fixed pipeline (4) on connecting plate (32), the joint seam of adjacent pipeline (4) erects in support bracket (33).
2. The apparatus of claim 1, wherein: both ends of the support bracket (33) are provided with connecting lugs (331), a middle groove (332) for welding the connecting seam of the adjacent pipelines (4) is arranged between the connecting lugs (331) of the support bracket (33), and the connecting seam of the adjacent pipelines (4) is positioned in the middle of the middle groove (332).
3. The apparatus of claim 1, wherein: advancing mechanism (2) set up to the major jack, the base fixed connection of advancing mechanism (2) is on bottom plate (11), pipeline (4) butt in the output of advancing mechanism (2) and the working well (1), be provided with laser theodolite (21) that flushes with pipeline (4) central line on advancing mechanism (2).
4. The apparatus of claim 3, wherein: and a reinforcing support (5) is arranged on the support bracket (33) at the welding seam of the inner wall of the adjacent pipeline (4), the reinforcing support (5) comprises a plurality of expansion rings (51) and a jack (52), a cylinder body of the jack (52) is fixedly connected to the end part of each expansion ring (51), and the output end of the jack (52) is fixedly connected to the end part of the adjacent expansion ring (51).
5. The apparatus of claim 4, wherein: the pipeline (4) end part close to the propelling mechanism (2) on the supporting bracket (33) is provided with a protective structure (6), the protective structure (6) comprises a rubber ring (61) and two semicircular steel rings (62), the rubber ring (61) is arranged between the end part of the pipeline (4) and the semicircular steel rings (62), and the semicircular steel rings (62) are abutted to the output end of the propelling mechanism (2).
6. The apparatus of claim 1, wherein: working well (1) bottom is close to entrance to a cave department and is provided with supporting construction (7), supporting construction (7) are including slip casting pipe (71) and reinforcing bar (72) buried underground in the soil layer, working well (1) inner wall is close to entrance to a cave department and is provided with mouthful circle (73), mouthful circle (73) and reinforcing bar (72) welding are protected, protect mouthful circle (73) and slip casting pipe (71) and be close to the tip butt of working well (1).
7. The apparatus of claim 1, wherein: be provided with push bench (8) along pipeline (4) jacking direction in the soil layer, install laser target (81) with laser theodolite (21) looks adaptation on push bench (8), laser target (81) and pipeline (4) center collineation.
8. The apparatus of claim 7, wherein: the working well (1) upper portion ground is provided with antifriction agent agitator pump (9), the output of antifriction agent agitator pump (9) is provided with mud pipe (91), mud pipe (91) and the slip casting pipe connection of pipe push bench (8) are sent.
9. The apparatus of claim 8, wherein: one side that well (1) upper portion ground is close to antifriction agent agitator pump (9) is provided with sludge pump (10), sludge pump (10) output is provided with connecting pipe (101), connecting pipe (101) are connected with the row's mud pipe of pipe push bench (8).
10. A storage tank jacking pipe installation construction method is characterized by comprising the following steps:
determining a jacking route, digging a working well (1) and a receiving well, and pouring and supporting the working well (1) and the receiving well;
a bottom plate (11) is arranged at the bottom of the working well (1), and the propelling mechanism (2) is hoisted to a proper position of the bottom plate (11) through measurement;
constructing a supporting structure (7) for a hole to be constructed in the working well (1);
a crane is adopted to hoist the pipeline (4) above the bearing mechanism (3), and the position of the bearing mechanism (3) is adjusted to realize the limiting and fixing of the pipeline (4);
reinforcing support is carried out on the inner wall welding seam of the pipeline (4) by using a reinforcing support (5);
jacking along a jacking route by using a pipe jacking machine (8), and jacking the pipeline (4) forwards by using a propelling mechanism (2);
Thixotropic slurry is conveyed by a friction reducer stirring pump (9) to reduce the friction resistance in the jacking process;
soil cut by the pipe jacking machine (8) is conveyed to the ground by a sludge discharge pump (10);
the pushing mechanism (2) pushes the pipeline (4) forwards according to a jacking route, and the pushing mechanism (2) retracts when the pipeline is pushed to the farthest position;
continuously hoisting the pipeline (4) to the bearing mechanism (3), and realizing the limiting and fixing of the pipeline (4) by using the bearing mechanism (3);
and repeating the propelling steps of the propelling mechanism (2) to the pipelines (4) until all the pipelines (4) are installed in place.
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| CN202210308203.1A CN114754194A (en) | 2022-03-26 | 2022-03-26 | Storage tank top pipe installation device and construction method thereof |
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| CN202210308203.1A CN114754194A (en) | 2022-03-26 | 2022-03-26 | Storage tank top pipe installation device and construction method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116857432A (en) * | 2023-06-21 | 2023-10-10 | 金中天水利建设有限公司 | Pipe jacking device and pipe jacking construction method thereof |
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