CN110873230A - Pipe jacking engineering construction process - Google Patents
Pipe jacking engineering construction process Download PDFInfo
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- CN110873230A CN110873230A CN201911159676.4A CN201911159676A CN110873230A CN 110873230 A CN110873230 A CN 110873230A CN 201911159676 A CN201911159676 A CN 201911159676A CN 110873230 A CN110873230 A CN 110873230A
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- pipeline
- box
- placing
- placing box
- gypsum
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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
- F16L1/036—Laying or reclaiming pipes on land, e.g. above the ground in the ground the pipes being composed of sections of short length
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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
- F16L1/10—Accessories therefor, e.g. anchors for aligning
Abstract
The invention relates to a pipe-jacking engineering construction process, which belongs to the technical field of pipe-jacking construction, and the technical scheme main points of the pipe-jacking engineering construction process are that the pipe-jacking engineering construction process comprises a calibration device, wherein the calibration device comprises a base station, an installation seat, a placing box and a gypsum block, the installation seat is in a circular ring shape with the bottom fixedly connected with the base station, the placing box is detachably and fixedly connected to the inner wall of the installation seat, one side, close to the center of the installation seat, of the placing box is open, the gypsum block is placed in the placing box and detachably and fixedly connected with the placing box, one end, close to the open side of the placing box, of the gypsum block extends to the outer side of the placing box, and the effect of ensuring that a pipeline advances.
Description
Technical Field
The invention relates to the technical field of pipe jacking construction, in particular to a pipe jacking engineering construction process.
Background
Along with the development and construction of economy, the number of water conservancy and hydropower engineering in China is more and more, related technologies become more and more mature, and in numerous construction technologies, the application of pipe jacking construction can remarkably promote the improvement of the economic benefit of the engineering and can play an important role in the engineering construction.
The pipe-jacking construction is a non-excavation construction method, and is a pipeline embedding construction technology without excavation or with few excavation.
In the pipe jacking construction process in the prior art, a pipeline is generally arranged on a pipe jacking foundation pit or a foundation pit bottom track in a crane hoisting mode, but deviation can occur in the arrangement of the pipeline due to the fact that the pipeline is arranged in the arrangement process, and the pipeline deviates from a preset path in the jacking process.
Disclosure of Invention
One of the objectives of the present invention is to provide a calibration device, which is configured to calibrate a pipe, so as to ensure that the pipe advances along a predetermined path during the jacking process.
The technical purpose of the invention is realized by the following technical scheme:
the utility model provides a push pipe engineering construction process, includes calibrating device, calibrating device includes base station, mount pad, places box and gypsum piece, and the mount pad is the ring form design of bottom and base station rigid coupling, places the box and can dismantle the rigid coupling in the inner wall of mount pad, and places one side that the box is close to the mount pad center and be uncovered setting, and the gypsum piece is arranged in and is placed the box and can dismantle the rigid coupling with placing the box, and the gypsum piece is close to the one end of placing the box uncovered side and extends to placing the box outside setting.
Through the technical scheme, when the calibrating device is used, the gypsum block is placed inside the placing box and fixed, one end of the gypsum block is placed outside the placing box, then the placing box is fixedly connected with the inner wall of the installing seat, then the installing seat is fixedly connected with the base station, the pipeline horizontally penetrates through the calibrating device, when the pipeline deviates, the outer wall of the pipeline is in contact with the gypsum block, scratches are left on the outer wall of the pipeline, the pipeline is adjusted towards the direction opposite to the scratches according to the position where the scratches are left on the outer wall of the pipeline until the pipeline conveyed forwards passes through the calibrating device, and compared with the situation that the pipeline deviates from a preset path in the jacking process due to deviation in the placement of the pipeline in the prior art, the effect of ensuring the pipeline to advance according to the preset path in the jacking process is achieved.
The invention is further configured to: the placing boxes are provided with a plurality of placing boxes which are arranged on the inner wall of the mounting seat at equal intervals.
Through above-mentioned technical scheme, set up a plurality of boxes of placing at the even interval of inner wall of mount pad, monitor the pipeline from the direction of difference, in time embody the deviation that the pipeline takes place, the operating personnel of being convenient for in time calibrates the top direction of advancing of pipeline, improves the accuracy of push pipe direction.
The invention is further configured to: a connecting block is arranged between the adjacent placing boxes and is fixedly connected with the mounting seat; a sliding groove is formed in one side, close to the placing box, of the connecting block, a sliding block is fixedly arranged at a position, opposite to the sliding groove, of the placing box, and the placing box is clamped with the connecting block; one side of the placing box, which is opposite to the mounting seat, is provided with a spring, and two ends of the spring are fixedly connected with the placing box and the mounting seat respectively.
Through the technical scheme, when the outer wall of the pipeline is abutted to the gypsum block, the gypsum block drives the placing box to move towards the direction far away from the pipeline through the compression spring, so that the gypsum block is ensured to not only leave scratches on the pipeline, but also be protected from being damaged due to rigid contact with the pipeline; the gypsum piece with place the box and remove along the spout of connecting block, place the box and be connected with sliding of connecting block and strengthen placing the stability of box at the removal in-process.
The invention is further configured to: the placing box comprises a bottom box and a box plate covered on the bottom box, and the box plate is hinged with the bottom box.
Through above-mentioned technical scheme, place the box including end box and with the articulated box board that links to each other of end box, the accessible is opened the box board and is taken out and put into the gypsum piece, in time changes the gypsum piece that has worn and torn to improve the accuracy of calibrating device in the use.
The invention is further configured to: the two sides of the placing box are provided with reinforcing members, and the reinforcing members penetrate through the box plate to be connected with the bottom box.
Through above-mentioned technical scheme, put into the end box with the gypsum piece in, cover the box board, then use the reinforcement to connect box board and end box, strengthen the connection stability between box board and the end box, prevent that the gypsum piece from droing in placing the box, improve the stability in use of gypsum piece.
The invention is further configured to: the placing box is characterized in that a positioning clamping strip is fixedly arranged on the inner wall of the placing box in an integrated mode, a positioning groove matched with the positioning clamping strip is formed in the gypsum block, and the gypsum block and the placing box are connected in a clamping mode.
Through above-mentioned technical scheme, when the gypsum piece was arranged in and was placed the box inside, make the constant head tank on the gypsum piece and place the interior location card strip of box and form the joint, the reinforcing gypsum piece with place being connected between the box, further improve the stability of gypsum piece when using.
The invention is further configured to: a plurality of positioning clamping strips in the placing box are arranged in parallel at intervals along the direction far away from the open end.
Through above-mentioned technical scheme, it is provided with a plurality ofly to place the locator card strip in the box, and is corresponding, also is provided with a plurality of constant head tanks on the gypsum piece, and a plurality of locator card strips fully contact with the constant head tank, strengthen the gypsum piece and place being connected between the box, improve the stability of gypsum piece in the use.
The invention is further configured to: the gypsum block is provided with a plurality of length types.
Through above-mentioned technical scheme, the gypsum piece has different length, and when the gypsum piece of different length was put into and was placed the box, the gypsum piece was different apart from the distance at the center of mount pad, and then was applicable to the pipeline of different diameters, enlarges calibrating device's application range, improves calibrating device's practicality.
The second purpose of the invention is realized by the following technical scheme:
a pipe jacking engineering construction process comprises the following steps:
s1, forming a foundation pit, wherein a bottom plate is arranged in the foundation pit;
s2, measuring and positioning;
s3, equipment installation:
back installation: forming a back wall, and placing a back steel plate in front of the back wall and perpendicular to the ground;
installing a guide rail: the two guide rails are laid below the path of the jacking pipe in parallel and limit the jacking direction of the pipeline;
installing a hydraulic jack bracket: arranging a driving device on the foundation pit for driving a hydraulic jack bracket; connecting the hydraulic jack bracket with the driving device by adopting a high-pressure oil pipe, and placing the jack bracket between the two guide rails for fixing;
installation of a calibration device: installing a calibration device in front of a pipeline path, placing a base platform of the calibration device between two guide rails, and fixedly connecting the base platform with a bottom plate;
s4, positioning the heading machine: placing the development machine on a guide rail mountain in a foundation pit;
s5, positioning the push bench: the rear end of the push bench is propped against the front side of the back steel plate;
s6, mounting a pipeline: hoisting the pipeline by adopting a hanging strip, lifting a hydraulic jack bracket, slowly hoisting the pipeline to a working platform at the bottom of the foundation pit, withdrawing the hanging strip after the pipeline is placed on the hydraulic jack bracket, and putting down the hydraulic jack bracket;
s7, calibrating the pipeline: the pipeline is conveyed forwards and penetrates through the calibrating device, when the pipeline deviates, the outer wall of the pipeline is in contact with the gypsum block, the gypsum block leaves scratches on the outer wall of the pipeline, and the pipeline is adjusted towards the direction opposite to the scratches until the pipeline conveyed forwards penetrates through the calibrating device and then does not leave the scratches of the gypsum block;
s8, jacking construction: the tunneling machine and the pipe jacking machine act simultaneously, the tunneling machine excavates soil and stones in front of the pipeline, the pipe jacking machine enables the pipeline to be pushed forwards along with the tunneling machine, the pipe jacking machine retracts when the pipeline is pushed to the farthest position, and the tunneling machine stops acting;
and S9, repeating the steps S6, S7 and S8 until all the pipelines are installed in place.
According to the technical scheme, firstly, a foundation pit is dug in a designated area, a base plate is arranged in the foundation pit, and then the inner size of the foundation pit is measured and the foundation pit is positioned according to the size of equipment; secondly, installing equipment, namely firstly installing a back to form a back wall, placing a back steel plate in front of the back wall, enabling the back steel plate to be perpendicular to the ground, then installing guide rails, laying the two guide rails below a pipe jacking path in parallel, limiting the direction for jacking a pipeline, then installing a hydraulic jack bracket, arranging a driving device on the foundation pit, driving the hydraulic jack bracket, connecting the hydraulic jack bracket with the driving device by adopting a high-pressure oil pipe, and placing the jack bracket between the two guide rails for fixing; finally, a calibration device is installed, the calibration device is installed in front of the pipeline path, a base platform of the calibration device is placed between the two guide rails, and the base platform is fixedly connected with the bottom plate; then, placing the tunneling machine on a guide rail mountain in the foundation pit, and enabling the rear end of the pipe jacking machine to abut against the front side of the back steel plate; hoisting the pipeline by using the hanging strip, lifting the hydraulic jack bracket, slowly hoisting the pipeline to the working platform at the bottom of the foundation pit, withdrawing the hanging strip after the pipeline is placed on the hydraulic jack bracket, and putting down the hydraulic jack bracket; then, calibrating the pipeline, conveying the pipeline forwards and enabling the pipeline to pass through the calibrating device, when the pipeline deviates, enabling the outer wall of the pipeline to be in contact with the gypsum block, leaving scratches on the outer wall of the pipeline by the gypsum block, and adjusting the pipeline in the direction opposite to the scratches until the pipeline conveyed forwards passes through the calibrating device, and then leaving no scratches on the gypsum block; the tunneling machine and the pipe jacking machine act simultaneously, the tunneling machine excavates soil and stones in front of the pipeline, the pipe jacking machine enables the pipeline to be pushed forwards along with the tunneling machine, the pipe jacking machine retracts when the pipeline is pushed to the farthest position, the tunneling machine stops acting, and then the pipeline is placed, calibrated and pushed forwards until all the pipelines are installed in place.
In conclusion, the beneficial technical effects of the invention are as follows:
1. the pipeline is calibrated by the calibration device, compared with the situation that the pipeline deviates from the preset path in the jacking process due to deviation in the placement of the pipeline in the prior art, the effect of ensuring the pipeline to advance according to the preset path in the jacking process is achieved;
2. the spring is arranged between the placing box and the mounting seat, and the gypsum block drives the placing box to move towards the direction far away from the pipeline through the compression spring, so that the gypsum block is ensured to not only leave scratches on the pipeline, but also be protected from being damaged due to rigid contact between the gypsum block and the placing box, and the using effect of the calibrating device is improved;
3. through setting firmly the locator card strip placing the box inner wall, set up the constant head tank with locator card strip looks adaptation on the gypsum piece, the gypsum piece forms the joint with placing the box, improves the stability of gypsum piece when using.
Drawings
FIG. 1 is a schematic view of the overall structure of the present embodiment;
FIG. 2 is a schematic view of a connection structure between the calibration device and the pipeline according to the present embodiment;
FIG. 3 is a schematic view of the overall structure of the calibration device of this embodiment;
FIG. 4 is an enlarged schematic view at A in FIG. 3;
fig. 5 is an open schematic view of the storage box of the present embodiment.
Reference numerals: 1. a calibration device; 11. a base station; 12. a mounting seat; 13. placing the box; 131. a bottom case; 1311. a slider; 1312. a spring; 1313. a reinforcement; 1314. positioning the clamping strip; 132. a box plate; 14. a gypsum block; 141. positioning a groove; 2. connecting blocks; 21. a chute.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Example 1
As shown in fig. 1, a pipe jacking engineering construction process includes a calibration device 1, where the calibration device 1 calibrates a pipe, and compared with a situation that a deviation occurs in the pipe placement in the prior art, which results in a deviation from a predetermined path in the pipe jacking process, the present embodiment achieves an effect of ensuring that the pipe advances according to the predetermined path in the pipe jacking process.
With reference to fig. 1 and 2, the calibrating device 1 includes base station 11, mount pad 12, places box 13 and gypsum block 14, and mount pad 12 is the ring design of bottom and base station 11 rigid coupling, places box 13 and can dismantle the rigid coupling in the inner wall of mount pad 12, and places one side that box 13 is close to mount pad 12 center and be uncovered setting, and gypsum block 14 is placed in and is placed box 13 and can dismantle the rigid coupling with placing box 13, and gypsum block 14 is close to the one end of placing the box 13 open side and extends to placing the setting in the box 13 outside. When using this calibrating device 1, make the pipeline level pass calibrating device 1, when the pipeline takes place the deviation, the outer wall and the gypsum block 14 of pipeline take place the contact, and gypsum block 14 leaves the mar on the pipeline outer wall, leaves the position of mar according to the pipeline outer wall, adjusts the pipeline towards the just right direction of mar, no longer leaves the mar of gypsum block 14 after passing calibrating device 1 until the pipeline of forward transport, then pipeline calibration.
Combine fig. 3 and fig. 4, it is provided with a plurality ofly to place box 13, and the preferred eight boxes 13 of placing that set up of this embodiment, and eight boxes 13 of placing even interval set up the inner wall at mount pad 12, monitor the pipeline from the direction of difference, in time embody the deviation that the pipeline takes place, and the operating personnel of being convenient for in time calibrates the jacking direction of pipeline, improves the accuracy of jacking pipe direction. A connecting block 2 is arranged between the adjacent placing boxes 13, and the connecting block 2 is fixedly connected with the mounting seat 12; a sliding groove 21 is formed in one side, close to the placing box 13, of the connecting block 2, a sliding block 1311 is fixedly arranged at the position, opposite to the sliding groove 21, of the placing box 13, and the placing box 13 is clamped with the connecting block 2; a spring 1312 is arranged on one side of the placing box 13 opposite to the mounting seat 12, and two ends of the spring 1312 are fixedly connected with the placing box 13 and the mounting seat 12 respectively. When the outer wall of the pipeline abuts against the gypsum block 14, the gypsum block 14 drives the placing box 13 to move towards the direction far away from the pipeline through the compression spring 1312, so that the gypsum block 14 is ensured to not only leave scratches on the pipeline, but also the gypsum block 14 and the placing box 13 are protected from being damaged due to rigid contact with the pipeline; the gypsum block 14 and the placing box 13 move along the sliding groove 21 of the connecting block 2, and the sliding connection between the placing box 13 and the connecting block 2 strengthens the stability of the placing box 13 in the moving process.
With reference to fig. 3 and 5, the placing box 13 includes a bottom box 131 and a box plate 132, the box plate 132 is covered on the bottom box 131, and the box plate 132 is hinged to the bottom box 131, so that the gypsum blocks 14 can be taken out and put in by opening the box plate 132, the worn gypsum blocks 14 can be replaced in time, and the accuracy of the calibrating device 1 in the using process can be improved. The two sides of the placing box 13 are provided with reinforcing members 1313, the reinforcing members 1313 penetrate through the box plate 132 to be connected with the bottom box 131, the gypsum block 14 is placed in the bottom box 131, the box plate 132 is covered, then the box plate 132 and the bottom box 131 are connected through the reinforcing members 1313, in the embodiment, bolts are adopted as the reinforcing members 1313, the connection between the box plate 132 and the bottom box 131 is strengthened, the gypsum block 14 is prevented from falling off from the placing box 13, and the use stability of the gypsum block 14 is improved. Place box 13 inner wall an organic whole and set firmly many locator card strips 1314, many locator card strips 1314 set up along the parallel interval of the direction of keeping away from the opening end, set up the constant head tank 141 with locator card strip 1314 looks adaptation on the gypsum block 14, gypsum block 14 forms the joint with placing box 13, when the gypsum block 14 is arranged in and is placed box 13 inside, make constant head tank 141 on the gypsum block 14 and place the locator card strip 1314 joint in the box 13 and link to each other, make gypsum block 14 with place box 13 and carry out the full connection, further improve the stability of gypsum block 14 when using. In addition, the gypsum block 14 is provided with a plurality of lengths, and when the gypsum block 14 of different lengths was put into and was placed in the box 13, the distance of gypsum block 14 apart from the center of mount pad 12 was different, and then was applicable to the pipeline of different diameters, enlarged calibrating device 1's application range, improved calibrating device 1's practicality.
Example 2
A pipe jacking engineering construction process comprises the following steps:
s1, forming a foundation pit, wherein a bottom plate is arranged in the foundation pit;
s2, measuring and positioning;
s3, equipment installation:
back installation: forming a back wall, and placing a back steel plate in front of the back wall and perpendicular to the ground;
installing a guide rail: the two guide rails are laid below the path of the jacking pipe in parallel and limit the jacking direction of the pipeline;
installing a hydraulic jack bracket: arranging a driving device on the foundation pit for driving a hydraulic jack bracket; connecting the hydraulic jack bracket with the driving device by adopting a high-pressure oil pipe, and placing the jack bracket between the two guide rails for fixing;
the calibration device 1 is installed: installing the calibration device 1 in front of the pipeline path, placing the base platform 11 of the calibration device 1 between two guide rails, and fixedly connecting the base platform 11 with the bottom plate;
s4, positioning the heading machine: placing the development machine on a guide rail mountain in a foundation pit;
s5, positioning the push bench: the rear end of the push bench is propped against the front side of the back steel plate;
s6, mounting a pipeline: hoisting the pipeline by adopting a hanging strip, lifting a hydraulic jack bracket, slowly hoisting the pipeline to a working platform at the bottom of the foundation pit, withdrawing the hanging strip after the pipeline is placed on the hydraulic jack bracket, and putting down the hydraulic jack bracket;
s7, calibrating the pipeline: the pipeline is conveyed forwards and penetrates through the calibrating device 1, when the pipeline deviates, the outer wall of the pipeline is in contact with the gypsum block 14, the gypsum block 14 leaves scratches on the outer wall of the pipeline, and the pipeline is adjusted towards the direction opposite to the scratches until the pipeline conveyed forwards penetrates through the calibrating device 1 and then does not leave scratches on the gypsum block 14;
s8, jacking construction: the tunneling machine and the pipe jacking machine act simultaneously, the tunneling machine excavates soil and stones in front of the pipeline, the pipe jacking machine enables the pipeline to be pushed forwards along with the tunneling machine, the pipe jacking machine retracts when the pipeline is pushed to the farthest position, and the tunneling machine stops acting;
and S9, repeating the steps S6, S7 and S8 until all the pipelines are installed in place.
The implementation principle of the embodiment is as follows: when the construction method of the pipe jacking engineering is used, firstly, a foundation pit is dug in a designated area, a bottom plate is arranged in the foundation pit, and then the inner size of the foundation pit is measured and the positioning is carried out according to the size of equipment; secondly, installing equipment, namely firstly installing a back to form a back wall, placing a back steel plate in front of the back wall, enabling the back steel plate to be perpendicular to the ground, then installing guide rails, laying the two guide rails below a pipe jacking path in parallel, limiting the direction for jacking a pipeline, then installing a hydraulic jack bracket, arranging a driving device on the foundation pit, driving the hydraulic jack bracket, connecting the hydraulic jack bracket with the driving device by adopting a high-pressure oil pipe, and placing the jack bracket between the two guide rails for fixing; finally, installing the calibrating device 1 in front of the pipeline path, placing the base platform 11 of the calibrating device 1 between the two guide rails, and fixedly connecting the base platform 11 with the bottom plate; then, placing the tunneling machine on a guide rail mountain in the foundation pit, and enabling the rear end of the pipe jacking machine to abut against the front side of the back steel plate; hoisting the pipeline by using the hanging strip, lifting the hydraulic jack bracket, slowly hoisting the pipeline to the working platform at the bottom of the foundation pit, withdrawing the hanging strip after the pipeline is placed on the hydraulic jack bracket, and putting down the hydraulic jack bracket; then, calibrating the pipeline, conveying the pipeline forwards and enabling the pipeline to pass through the calibrating device 1, when the pipeline deviates, the outer wall of the pipeline is in contact with the gypsum block 14, the gypsum block 14 leaves scratches on the outer wall of the pipeline, and the pipeline is adjusted towards the direction opposite to the scratches until the pipeline conveyed forwards passes through the calibrating device 1, and then the scratches of the gypsum block 14 are not left; the tunneling machine and the pipe jacking machine act simultaneously, the tunneling machine excavates soil and stones in front of the pipeline, the pipe jacking machine enables the pipeline to be pushed forwards along with the tunneling machine, the pipe jacking machine retracts when the pipeline is pushed to the farthest position, the tunneling machine stops acting, and then the pipeline is placed, calibrated and pushed forwards until all the pipelines are installed in place.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (9)
1. The utility model provides a push pipe engineering construction technology, includes calibrating device (1), its characterized in that: calibration device (1) includes base station (11), mount pad (12), place box (13) and gypsum piece (14), mount pad (12) are the ring form design of bottom and base station (11) rigid coupling, place the inner wall of rigid coupling in mount pad (12) can be dismantled in box (13), and place one side that box (13) are close to mount pad (12) center and be uncovered setting, gypsum piece (14) are arranged in and are placed box (13) and can dismantle the rigid coupling with placing box (13), and gypsum piece (14) are close to the one end of placing box (13) uncovered side and extend to and place box (13) outside setting.
2. The pipe jacking engineering construction process according to claim 1, wherein: the placing boxes (13) are arranged in a plurality of numbers, and the placing boxes (13) are evenly arranged on the inner wall of the mounting seat (12) at intervals.
3. The pipe jacking engineering construction process according to claim 1, wherein: a connecting block (2) is arranged between the adjacent placing boxes (13), and the connecting block (2) is fixedly connected with the mounting seat (12); a sliding groove (21) is formed in one side, close to the placing box (13), of the connecting block (2), a sliding block (1311) is fixedly arranged at the position, opposite to the sliding groove (21), of the placing box (13), and the placing box (13) is clamped with the connecting block (2); a spring (1312) is arranged on one side, opposite to the mounting seat (12), of the placing box (13), and two ends of the spring (1312) are fixedly connected with the placing box (13) and the mounting seat (12) respectively.
4. The pipe jacking engineering construction process according to claim 1, wherein: the placing box (13) comprises a bottom box (131) and a box plate (132) covered on the bottom box (131), and the box plate (132) is hinged with the bottom box (131).
5. The pipe jacking project construction process of claim 4, wherein: two sides of the placing box (13) are provided with reinforcing members (1313), and the reinforcing members (1313) penetrate through the box plate (132) to be connected with the bottom box (131).
6. The pipe jacking engineering construction process according to claim 1, wherein: the inner wall of the placing box (13) is integrally and fixedly provided with a positioning clamping strip (1314), the gypsum block (14) is provided with a positioning groove (141) matched with the positioning clamping strip (1314), and the gypsum block (14) and the placing box (13) form clamping connection.
7. The pipe jacking project construction process of claim 6, wherein: a plurality of positioning clamping strips (1314) in the placing box (13) are arranged in parallel at intervals along the direction away from the open end.
8. The pipe jacking engineering construction process according to claim 1, wherein: the gypsum block (14) is provided with a plurality of length types.
9. The calibration device (1) according to any one of claims 1 to 8, wherein: the construction process comprises the following steps:
s1, forming a foundation pit, wherein a bottom plate is arranged in the foundation pit;
s2, measuring and positioning;
s3, equipment installation:
back installation: forming a back wall, and placing a back steel plate in front of the back wall and perpendicular to the ground;
installing a guide rail: the two guide rails are laid below the path of the jacking pipe in parallel and limit the jacking direction of the pipeline;
installing a hydraulic jack bracket: arranging a driving device on the foundation pit for driving a hydraulic jack bracket; connecting the hydraulic jack bracket with the driving device by adopting a high-pressure oil pipe, and placing the jack bracket between the two guide rails for fixing;
the calibration device (1) is installed: installing the calibrating device (1) in front of the pipeline path, placing a base platform (11) of the calibrating device (1) between the two guide rails, and fixedly connecting the base platform (11) with the bottom plate;
s4, positioning the heading machine: placing the development machine on a guide rail mountain in a foundation pit;
s5, positioning the push bench: the rear end of the push bench is propped against the front side of the back steel plate;
s6, mounting a pipeline: hoisting the pipeline by adopting a hanging strip, lifting a hydraulic jack bracket, slowly hoisting the pipeline to a working platform at the bottom of the foundation pit, withdrawing the hanging strip after the pipeline is placed on the hydraulic jack bracket, and putting down the hydraulic jack bracket;
s7, calibrating the pipeline: the pipeline is conveyed forwards and penetrates through the calibrating device (1), when the pipeline deviates, the outer wall of the pipeline is in contact with the gypsum block (14), the gypsum block (14) leaves scratches on the outer wall of the pipeline, and the pipeline is adjusted towards the direction opposite to the scratches until the pipeline conveyed forwards penetrates through the calibrating device (1) and then does not leave scratches on the gypsum block (14);
s8, jacking construction: the tunneling machine and the pipe jacking machine act simultaneously, the tunneling machine excavates soil and stones in front of the pipeline, the pipe jacking machine enables the pipeline to be pushed forwards along with the tunneling machine, the pipe jacking machine retracts when the pipeline is pushed to the farthest position, and the tunneling machine stops acting;
and S9, repeating the steps S6, S7 and S8 until all the pipelines are installed in place.
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| CN201911159676.4A CN110873230B (en) | 2019-11-22 | 2019-11-22 | Pipe jacking engineering construction process |
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| CN201911159676.4A CN110873230B (en) | 2019-11-22 | 2019-11-22 | Pipe jacking engineering construction process |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112253844A (en) * | 2020-09-29 | 2021-01-22 | 北京政平建设投资集团有限公司 | Self-monitoring guide rail |
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