CN214703206U - Visual pipe jacking model test device for simulating sewage leakage working condition - Google Patents
Visual pipe jacking model test device for simulating sewage leakage working condition Download PDFInfo
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- CN214703206U CN214703206U CN202120312925.5U CN202120312925U CN214703206U CN 214703206 U CN214703206 U CN 214703206U CN 202120312925 U CN202120312925 U CN 202120312925U CN 214703206 U CN214703206 U CN 214703206U
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- pipe
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- jacking
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- 239000010865 sewage Substances 0.000 title claims abstract description 91
- 230000000007 visual effect Effects 0.000 title claims abstract description 42
- 239000002689 soil Substances 0.000 claims abstract description 49
- 238000004088 simulation Methods 0.000 claims abstract description 35
- 239000000463 material Substances 0.000 claims abstract description 14
- 238000002347 injection Methods 0.000 claims abstract description 11
- 239000007924 injection Substances 0.000 claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 52
- 230000009974 thixotropic effect Effects 0.000 claims description 7
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 238000007599 discharging Methods 0.000 claims description 4
- 239000000314 lubricant Substances 0.000 claims description 3
- 238000005086 pumping Methods 0.000 abstract description 4
- 230000005012 migration Effects 0.000 abstract description 3
- 238000013508 migration Methods 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract 1
- 239000002002 slurry Substances 0.000 description 13
- 238000010276 construction Methods 0.000 description 7
- 239000004033 plastic Substances 0.000 description 7
- 230000008859 change Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000009412 basement excavation Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005094 computer simulation Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000007569 slipcasting Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000005341 toughened glass Substances 0.000 description 1
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Abstract
The utility model discloses a visual top pipe model test device of simulation sewage seepage operating mode, including visual stratum simulation case, visual stratum simulation case links to each other with sewage injection device, be provided with pipe-jacking model machine in the visual stratum simulation case, the top pushes away pressure device does pipe-jacking model machine provides thrust. The utility model discloses pack into the transparent soil material in visual stratum simulation case, through reserving model hole installation pipe-jacking model machine, pipe-jacking model machine pushes up the work of pushing down at the top of top pushing pressure device, after pipe-jacking model machine reachs to set for the position or transparent soil subsides and reach the critical value, adjusts the pumping speed of suction pump and starts sewage injection device, pours into sewage into the back, observes sewage and mud cover migration condition, measuration push-up force and top pushing speed simultaneously and changes. The utility model is simple in operation convenient, the test result is transparent visible, and the reliability is high.
Description
Technical Field
The utility model relates to a visual pipe jacking model test device of simulation sewage seepage operating mode belongs to underground works construction technical field.
Background
In recent years, with the acceleration of urban underground engineering construction, the problems of traffic jam, pedestrian safety and the like caused by road surface excavation are more and more prominent. Pipe-jacking construction is a non-excavation technology, and has been widely applied to projects such as municipal pipelines and subway construction due to its characteristics of high automation degree, high construction speed, no damage to existing buildings, and the like.
In the jacking process of the jacking pipe, the working conditions such as sewage leakage caused by the broken sewage pipe are more and more common. The leaked sewage can be carried along a gap between the slurry sleeve and the jacking pipe, the slurry sleeve is wrapped and carried backwards, and then is carried into the originating well and gushes forwards into the pressure chamber; meanwhile, in the process that the mud sleeve is damaged by sewage, the mud sleeve is diluted, so that the effect of lubrication and resistance reduction is lost, the jacking force is greatly increased in jacking of the jacking pipe, and the jacking construction of the jacking pipe is difficult.
The prior art mostly carries out the slip casting treatment in advance to existing sewage pipeline before the construction, strengthens tube coupling sealing measure etc. and the operation is complicated, the cost is higher and the effect is unstable, lacks the dynamic simulation to the roof-pipe jacking process sewage seepage condition. Aiming at the visual simulation problem of the pipe jacking engineering under the sewage leakage working condition, a visual pipe jacking model test device for simulating the sewage leakage working condition is necessary to be designed.
SUMMERY OF THE UTILITY MODEL
The utility model aims at the above-mentioned problem that prior art exists, provide a visual pipe jacking model test device of simulation sewage seepage operating mode to solve the problem that mentions in the background art, it can effectively simulate sewage seepage operating mode under sewage and the pipe jacking machine mud cover displacement change, the pipe jacking thrust situation of change of measurationing simultaneously, easy operation is convenient, and the test result is transparent visible, and the reliability is high.
In order to solve the technical problem, the utility model discloses a technical scheme does:
the visual pipe jacking model test device comprises a visual stratum simulation box, wherein the visual stratum simulation box is connected with a sewage injection device, a pipe jacking model machine is arranged in the visual stratum simulation box, and a pushing pressure device provides thrust for the pipe jacking model machine.
The sewage injection device comprises a sewage tank, the sewage tank is filled with prepared sewage, the water inlet of the water diversion pipe is located in the sewage tank, the water outlet of the water diversion pipe is connected with the water inlet of the water suction pump, the water outlet of the water suction pump is connected with a water outlet pipe, and the water outlet pipe is detachably connected with the sewage pipe inserted into the visual stratum simulation tank through a threaded water pipe joint.
The water suction pump is provided with a first power switch, a first setting button and a display screen.
The visual stratum simulation box comprises a soil box, a plurality of sewage pipe through holes are formed in the side wall of the soil box, and rubber plugs are movably arranged on the sewage pipe through holes; a reserved model hole for inserting the pipe-jacking model machine is formed in the side wall of the soil box; the side wall of the soil box is also provided with a graduated scale, and the soil box is filled with transparent soil materials.
All the sewage pipe through holes are positioned on the same horizontal line at the middle upper part of the soil box; the reserved model hole is positioned below the sewage pipe through hole.
The pipe jacking mould machine comprises a detachable cutter disc, a simulation soil cabin is connected to the back of the detachable cutter disc, a soil discharging device is connected to the back of the simulation soil cabin, the simulation soil cabin is further connected with a shell, a conveying belt is arranged in the shell, and a slurry sleeve is arranged on the outer surface of the shell.
The shell is made of concrete; the mud sleeve is made of thixotropic mud.
The pushing pressure device comprises a pushing plate for pushing the pipe-jacking model machine, the pushing plate is connected with an electric telescopic rod, the electric telescopic rod is installed on the reaction frame, and the electric telescopic rod is connected with a jack controller through a data line.
And a second power switch, a second setting button, a speed display screen and a jacking force display screen are arranged on the jack controller.
And a water-stopping rubber ring is arranged at the edge of the reserved model hole, and a lubricant is smeared on the inner side of the water-stopping rubber ring.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a device can realize that the push pipe of sewage seepage operating mode impels visual simulation, and it can effectively simulate sewage and pipe pushing jack mud cover displacement under the sewage seepage operating mode and change, measuration push pipe thrust variation simultaneously, and easy operation is convenient, and the test result is transparent visible, and the reliability is high.
Drawings
Fig. 1 is a schematic structural view of the present invention;
in the figure, 11 water pumps, 12 first power switches, 13 first setting buttons, 14 display screens, 151 water pipes, 152 water outlet pipes, 16 threaded water pipe connectors, 17 sewage pipes, 18 sewage tanks, 19 prepared sewage, 21 soil tanks, 22 graduated scales, 23 sewage pipe through holes, 24 transparent soil materials, 25 rubber plugs, 26 reserved model holes, 31 detachable cutterheads, 32 simulated soil tanks, 33 soil dischargers, 34 mud jackets, 35 shells, 36 conveyor belts, 41 jack controllers, 42 second power switches, 43 second setting buttons, 441 speed display screens, 442 pushing force display screens, 45 data lines, 46 pushing plates, 47 electric telescopic rods and 48 reaction frames.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail with reference to the accompanying drawings and embodiments. The specific embodiments described herein are merely illustrative of the invention and are not intended to be limiting of the invention.
As shown in fig. 1, a visual pipe jacking model test device for simulating a sewage leakage working condition comprises a sewage injection device, a visual stratum simulation box, a pipe jacking model machine and a pushing pressure device; the visual stratum simulation box is connected with the sewage injection device, a pipe-jacking model machine is arranged in the visual stratum simulation box, and the pushing pressure device provides thrust for the pipe-jacking model machine.
The sewage injection device comprises a water suction pump 11, a first power switch 12, a first setting button 13, a display screen 14, a water conduit 151, a water outlet pipe 152, a threaded water pipe joint 16, a sewage pipe 17, a sewage tank 18 and prepared sewage 19.
The sewage tank 18 is filled with prepared sewage 19, the water inlet of the water conduit 151 is located in the sewage tank 18, the water outlet of the water conduit 151 is connected with the water inlet of the water suction pump 11, the water outlet of the water suction pump 11 is connected with a water outlet pipe 152, and the water outlet pipe 152 is detachably connected with a sewage pipe 17 which is used for being inserted into the visual stratum simulation tank through a threaded water pipe joint 16.
The threaded water pipe joint 16 can be detached and replaced, so that the water outlet pipes 152 with different pipe diameters are connected, and the water outlet pipes 152 with different lengths are used for controlling sewage leakage horizontal point positions.
The prepared sewage 19 can be prepared as required, and can adopt in-situ sewage and also can adjust related indexes such as sewage density, heavy metal content, acidity and alkalinity and the like.
The water pump 11 is fixed above the sewage tank 18, and the pumping range of the water pump is 0-100cm3The accuracy reaches 0.1cm3/s。
The water pump 11 is provided with a first power switch 12, a first setting button 13 and a display screen 14.
The visual stratum simulation box comprises a soil box 21, a graduated scale 22, a sewage pipe through hole 23, a transparent soil material 24, a rubber plug 25 and a reserved model hole 26.
A plurality of sewage pipe through holes 23 are formed in the side wall of the soil box 21, and rubber plugs 25 are movably arranged on the sewage pipe through holes 23; a reserved model hole 26 for inserting the pipe jacking model machine is further formed in the side wall of the soil box 21; the side wall of the soil box 21 is also provided with a graduated scale 22, and the soil box 21 is filled with transparent soil materials 24.
All the sewage pipe through holes 23 are positioned on the same horizontal line at the middle upper part of the soil box 21; the preformed pattern hole 26 is positioned below the sewer pipe through hole 23.
The visual stratum simulation box is made of transparent toughened glass and is an uncovered cuboid, the length of the cuboid is 80cm, the width of the cuboid is 80cm, the height of the cuboid is 60cm, a hole (namely a reserved model hole 26) through which the pipe jacking model machine passes is reserved on the side edge of the cuboid, and scales 22 are carved on four sides of the visual stratum simulation box.
And a water-stopping rubber ring is arranged at the edge of the reserved model hole 26, and a lubricant is smeared on the inner side of the water-stopping rubber ring so as to reduce the friction between the water-stopping rubber ring and the concrete.
The sewage pipe through holes 23 are used for controlling the point position of the sewage leakage direction, and a plurality of sewage pipe through holes 23 can be opened simultaneously to simulate the complex sewage leakage working condition.
The pipe jacking mould machine comprises a detachable cutter head 31, a simulated soil cabin 32, a soil discharging device 33, a slurry sleeve 34, a shell 35 and a conveyor belt 36.
The rear of the detachable cutter head 31 is connected with a simulated soil cabin 32, the rear of the simulated soil cabin 32 is connected with a soil discharging device 33, the simulated soil cabin 32 is further connected with a shell 35, a conveying belt 36 is arranged in the shell 35, and a mud sleeve 34 is arranged on the outer surface of the shell 35.
The shell 35 is made of concrete; the mud sleeve 34 is made of thixotropic mud.
The pipe-jacking model machine is made of stainless steel material, the shell 35 is covered by concrete material, and concrete strength index is the same as that of the prefabricated pipe-jacking concrete so as to simulate actual pipe joint material.
The slurry sleeve 34 is formed by inserting a plastic round pipe into the reserved mold hole 26, then installing the pipe-jacking mold machine, injecting thixotropic slurry between the plastic round pipe and the pipe-jacking mold machine shell, and slowly pulling out the plastic round pipe. The slurry sleeve can be configured as required, and can adopt on-site thixotropic slurry and also can adjust relevant parameters such as density, consistency, additive content and the like.
The jacking pressure device comprises a jack controller 41, a second power switch 42, a second setting button 43, a speed display screen 441, a jacking force display screen 442, a data line 45, a jacking plate 46, an electric telescopic rod 47 and a reaction frame 48.
The pushing pressure device comprises a pushing plate 46 for pushing the pipe-jacking model machine, the pushing plate 46 is connected with an electric telescopic rod 47, the electric telescopic rod 47 is installed on a reaction frame 48, and the electric telescopic rod 47 is connected with a jack controller 41 through a data line 45.
The jack controller 41 is provided with a second power switch 42, a second setting button 43, a speed display screen 441 and a jacking force display screen 442.
The pushing plate 46 is connected with the jack controller 41 through the data line 45, and the electric telescopic rod 47 is controlled by the jack controller 41 to push the pipe-jacking model machine.
The pushing plate 46 provides pushing force, pushing is performed at a constant speed according to the speed set by the speed display screen 441, and after sewage is injected, the second setting button 43 is adjusted to enable the pushing plate 46 to still keep pushing at a constant speed.
The pushing plate 46 and the electric telescopic rod 47 are made of stainless steel materials, and the electric telescopic rod 47 can stretch left and right.
The pushing plate 46, the electric telescopic rod 47 and the reaction frame 48 are fixedly connected with each other.
The speed measuring range of the speed display screen 441 is 0-10mm/s, and the precision reaches 0.1 mm/s.
The force measuring range of the jacking force display screen 442 is 0-1000N, and the precision reaches 0.1N.
In the embodiment, transparent soil materials 24 are filled in a visual stratum simulation box, a pipe-jacking model machine is installed through a reserved model hole 26 and works under jacking of a jacking pressure device, when the pipe-jacking model machine reaches a set position or transparent soil settlement reaches a critical value, the pumping speed of a water suction pump 11 is adjusted, a sewage injection device is started, after sewage is injected, the migration condition of a sewage and slurry sleeve 34 is observed, and meanwhile, the variation of the jacking force and the jacking speed is measured.
Specifically, when the pipe jacking device is used, firstly, transparent soil materials 24 with the height of 20cm are filled into the soil box 21 in a layered mode, the compactness is guaranteed to be the same as the simulated working condition, firstly, a plastic circular pipe is inserted into the reserved model hole 26, and then, the pipe jacking model machine is inserted into the plastic circular pipe; the water outlet pipe 152 is inserted into the through hole 23 of the sewage pipe and stays to the designed position, and then the residual transparent soil material is filled in layers by 24-50 cm; thixotropic slurry is injected between the plastic round pipe and the shell 35 of the pipe-jacking mould machine, and after the pores are filled, the plastic round pipe is slowly pulled out to form a slurry sleeve 34; and opening a second power switch 42 of the jack controller 41, setting a pushing speed to push the pipe-jacking model machine at a constant speed, in the pushing process of the pipe-jacking model machine, adding thixotropic slurry between a jacking pipe and a soil layer in the process of increasing the jacking pipe, adjusting the pumping speed of the water suction pump 11 when the pipe-jacking model machine reaches a set position or the sedimentation of the transparent soil material 24 reaches a critical value, starting the sewage injection device to inject sewage, observing the permeation of the injected sewage and the migration condition of the slurry sleeve 34, and adjusting a second set button 43 on the jack controller 41 to ensure that the pipe-jacking model machine still keeps the jacking at the constant speed and measure the pushing force variation condition of the jack.
The utility model discloses simple and convenient, degree of automation is high, can make things convenient for effective judgement sewage and mud cover displacement to change, and the push pipe thrust situation of change of measurationing simultaneously, and simulation degree is high, is fit for promoting.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. The utility model provides a visual pipe jacking model test device of simulation sewage seepage operating mode which characterized in that: the device comprises a visual stratum simulation box, wherein the visual stratum simulation box is connected with a sewage injection device, a pipe-jacking model machine is arranged in the visual stratum simulation box, and a pushing pressure device provides thrust for the pipe-jacking model machine.
2. The visual pipe jacking model test device for simulating sewage leakage working conditions according to claim 1, characterized in that: the sewage injection device comprises a sewage tank (18), wherein the sewage tank (18) is filled with prepared sewage (19), a water inlet of a water conduit (151) is positioned in the sewage tank (18), a water outlet of the water conduit (151) is connected with a water inlet of a water suction pump (11), a water outlet of the water suction pump (11) is connected with a water outlet pipe (152), and the water outlet pipe (152) is detachably connected with a sewage pipe (17) of the visual stratum simulation tank through a threaded water pipe joint (16).
3. The visual pipe jacking model test device for simulating sewage leakage working conditions according to claim 2, characterized in that: the water suction pump (11) is provided with a first power switch (12), a first setting button (13) and a display screen (14).
4. The visual pipe jacking model test device for simulating sewage leakage working conditions according to claim 1, characterized in that: the visual stratum simulation box comprises a soil box (21), a plurality of sewage pipe through holes (23) are formed in the side wall of the soil box (21), and rubber plugs (25) are movably arranged on the sewage pipe through holes (23); a reserved model hole (26) for inserting the pipe jacking model machine is further formed in the side wall of the soil box (21); the side wall of the soil box (21) is also provided with a graduated scale (22), and the soil box (21) is filled with transparent soil materials (24).
5. The visual pipe jacking model test device for simulating sewage leakage working conditions according to claim 4, characterized in that: all the sewage pipe through holes (23) are positioned on the same horizontal line of the middle upper part of the soil box (21); the reserved model hole (26) is positioned below the sewage pipe through hole (23).
6. The visual pipe jacking model test device for simulating sewage leakage working conditions according to claim 1, characterized in that: pipe jacking model machine is including dismantling blade disc (31), it has simulation soil cabin (32) to dismantle the back of blade disc (31), it has soil discharging device (33) to even at the back of simulation soil cabin (32), simulation soil cabin (32) still link to each other with shell (35), be provided with conveyer belt (36) in shell (35), the surface of shell (35) is provided with mud cover (34).
7. The visual pipe jacking model test device for simulating sewage leakage working conditions according to claim 6, characterized in that: the shell (35) is made of concrete; the mud sleeve (34) is made of thixotropic mud.
8. The visual pipe jacking model test device for simulating sewage leakage working conditions according to claim 1, characterized in that: the pushing pressure device comprises a pushing plate (46) used for pushing the pipe-jacking model machine, the pushing plate (46) is connected with an electric telescopic rod (47), the electric telescopic rod (47) is installed on a reaction frame (48), and the electric telescopic rod (47) is connected with a jack controller (41) through a data line (45).
9. The visual pipe jacking model test device for simulating sewage leakage working conditions according to claim 8, characterized in that: and a second power switch (42), a second setting button (43), a speed display screen (441) and a jacking force display screen (442) are arranged on the jack controller (41).
10. The visual pipe jacking model test device for simulating sewage leakage working conditions according to claim 4, characterized in that: and a water-stopping rubber ring is arranged at the edge of the reserved model hole (26), and a lubricant is smeared on the inner side of the water-stopping rubber ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120312925.5U CN214703206U (en) | 2021-02-04 | 2021-02-04 | Visual pipe jacking model test device for simulating sewage leakage working condition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120312925.5U CN214703206U (en) | 2021-02-04 | 2021-02-04 | Visual pipe jacking model test device for simulating sewage leakage working condition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214703206U true CN214703206U (en) | 2021-11-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120312925.5U Expired - Fee Related CN214703206U (en) | 2021-02-04 | 2021-02-04 | Visual pipe jacking model test device for simulating sewage leakage working condition |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214703206U (en) |
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2021
- 2021-02-04 CN CN202120312925.5U patent/CN214703206U/en not_active Expired - Fee Related
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211112 |
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| CF01 | Termination of patent right due to non-payment of annual fee |