CN203239355U - Jacking type cable sleeve channel structure - Google Patents
Jacking type cable sleeve channel structure Download PDFInfo
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- CN203239355U CN203239355U CN 201320216665 CN201320216665U CN203239355U CN 203239355 U CN203239355 U CN 203239355U CN 201320216665 CN201320216665 CN 201320216665 CN 201320216665 U CN201320216665 U CN 201320216665U CN 203239355 U CN203239355 U CN 203239355U
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- jacking
- push pipe
- type cable
- pipe
- concrete
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Abstract
The utility model discloses a jacking type cable sleeve channel structure. The jacking type cable sleeve channel structure is characterized by comprising two end socket cable wells, a jacking pipe channel communicating the two end socket cable wells and sleeves arranged in the jacking pipe channel. Flat iron fixing pieces fixed with the wall of the jacking pipe channel are arranged in the jacking pipe channel, and the flat iron fixing pieces are used for separating and limiting the arranged sleeves. Concrete is poured among all sleeves in the jacking pipe channel, and the straight-line distance between the two end socket cable wells is less than or equal to 250 meters. According to the jacking type cable sleeve channel structure, the flat iron fixing pieces are adopted to form an anti-floating device to guarantee the stability of pipelines, traditional break-joint pipe arrangement is changed into opposite-joint pipe arrangement and the concrete is poured, and the sleeves are guaranteed to be packed firmly without leakage.
Description
Technical field
The utility model relates to a kind of pipe passage structure, is specifically related to a kind of underground passage structure for raceway.
Background technology
Green Travel is advocated in the whole nation at present, and the rail vehicle transportation amount is large, environmental protection, and various places are all in continuous planning, newly-built Rail Transit System, particularly Underground Rail Transit system.Power system is the blood of track traffic, guarantees that the safety of cable is laid with use most important.
Cable by designated lane the supply of electric power of transformer station to the station, but station and transformer station are often distant, the ground obstacle of approach is often more, often need to pass through by modes such as left and right sides translation, broken line detour; Be difficult to implement for the removal amount greatly or the obstacle that temporarily can't remove.
For addressing the above problem, break the barriers smoothly, cable is delivered to the station from substation safety, wear the mode of detouring under can considering.But, as the cable system of track traffic, consider security reason, various cable separatings need to be arranged, and need to guarantee that pipeline is non-leakage, especially when carrying out concrete construction, how to realize that anti-floating fixes, these all are the difficult problems that need to solve when descending to wear construction.
Summary of the invention
Goal of the invention of the present utility model provides a kind of jacking-type cable sleeve channel design, has both guaranteed the safety of the obstructions such as above ground structure, guarantees again the safety of pipe structure, and unattended in the realization hole, with accelerating construction progress.
To achieve the above object of the invention, the technical solution adopted in the utility model is: a kind of jacking-type cable sleeve channel design, comprise two tip cable wells, be communicated with two tip cable wells the push pipe passage, be arranged in the sleeve pipe in the push pipe passage, be provided with the band iron fixture fixing with the push pipe conduit wall in the described push pipe passage, separate the sleeve pipe of arranging spacing by the band iron fixture; Be perfused with concrete between each sleeve pipe in described push pipe passage, the air line distance of two tip cable wells is not more than 250 meters.
Further technical scheme, described push pipe passage is separated into a plurality of sections at length direction by isolate steel plate, and each segment length is 40m～60m, is distributed with the through hole that wears sleeve pipe on the described isolate steel plate, and each sleeve pipe adopts opposite joint comb mode to arrange.
In the technique scheme, described isolate steel plate top is provided with the venthole pipeline.
Jacking-type cable sleeve channel design of the present utility model can adopt following method preparation:
(1) tip cable well open caisson construction: the two ends of the obstruction that passes through at needs arrange respectively the tip cable well, adopt open caisson technique to construct, and the air line distance of described two tip cable wells is not more than 250 meters;
(2) jacking construction: adopt the push pipe jacking mechanism to carry out the jacking operation from a tip cable well to another tip cable well, make up the push pipe passage that is communicated with two tip cable wells;
(3) comb construction: arranged sleeve pipe in the push pipe passage that step (2) obtains, be provided with the band iron fixture fixing with the push pipe conduit wall in the described push pipe passage, separate the sleeve pipe of arranging spacing by the band iron fixture;
(4) concrete perfusion between each sleeve pipe in described push pipe passage;
(5) at one end tip cable well is put into lead-in wire, adopts the draw-gear traction at the tip cable well of the other end, realizes the cable threading.
Because the utilization of technique scheme, the utility model compared with prior art has following advantages:
1, the utility model adopts the band iron fixture to consist of anti-floating system, guarantees the stability of pipeline, and changing traditional fissure of displacement comb is opposite joint comb and concrete perfusion, guarantees to wrap up between sleeve pipe firmly, and is non-leakage.
2, the utility model can be widely used in ground obstruction, can not remove or removal cost is excessive, jacking distance is controlled at 250m with interior raceway laying project.
3, the utility model take full advantage of push pipe can be in the darker soil body, the advantage implemented in the various soil layer, can guarantee the safety of the obstructions such as above ground structure, can guarantee again the safety of pipe structure, and can realize in the hole unattended, accelerated construction speed, relatively huge compensation for demolition expense, the expense less of jacking construction, comprehensive benefit is obvious.
Description of drawings
Fig. 1 is profile among the embodiment one.
Fig. 2 is band iron and concrete pipe connected node partial enlarged drawing among Fig. 1.
Fig. 3 is the skiagraph of Fig. 1.
Wherein: 1, band iron fixture; 2, sleeve pipe; 3, push pipe; 5, expansion bolt.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is further described:
Embodiment one: a kind of jacking-type cable sleeve channel design, comprise two tip cable wells, be communicated with two tip cable wells the push pipe passage, be arranged in the sleeve pipe in the push pipe passage, be provided with the band iron fixture fixing with the push pipe conduit wall in the described push pipe passage, separate the sleeve pipe of arranging spacing by the band iron fixture; Be perfused with concrete between each sleeve pipe in described push pipe passage, the air line distance of two tip cable wells is not more than 250 meters.
The present embodiment adopts following job practices to make, and comprises the open caisson construction of tip cable well, jacking construction, comb construction, concrete perfusion, cable threading step.
1, tip cable well open caisson construction
The open caisson technological process is as follows: and preparation → brick loose tool and the plain concrete bed course dismounting → dabbing → sinking of fetching earth → subsidence velocity control → open caisson rectify a deviation → and open caisson back cover, bottom board concrete build.
Should be noted in the process following some:
Groundwater control
Cable shaft such as powder soil horizon, for preventing from emitting sand, can adopt around the open caisson and stir the pile body isolation method in the sinking process, can adopt the multiaxis machine, also can adopt rotary churning pile to form water-stop curtain, and establish tube well dewatering and do emergency processing.
Soil digging technique
For guaranteeing operating personnel's safety, reduce personnel's operation in the hole, can adopt conventional artificial soil digging method, also but operation in the treatment Miniature digging machine hole, large-scale long-armed digging machine are cheated the soil digging technique of fit on, can accelerate speed of application, reduce labour intensity, should guarantee construction precision simultaneously.
The segmentation Subsidence Construction Technique
According to the open caisson degree of depth, can adopt that segmentation is built, the gradation subsidence process, every joint is built and can be sunk after concrete reaches 100% design strength, sinking stage emphasis is followed the tracks of the sinking uniformity, after sinking to putting in place, timely colligation baseplate reinforcing bar, carry out fast back cover, after the concrete initial set, draw water immediately and recharge in the well, guarantee to cheat pressure balance at the end.
2, jacking construction
Jacking construction can adopt the methods such as earth pressure balance method, mud and water balance method to construct according to engineering soil property and jacking length, and the below describes with the mud and water balance method.
Mud and water balance method push pipe system comprises the compositions such as head, control room, muddy water loop, main top, stirring pool, mud jacking.
The overall working procedure of push pipe: construction beginning → measure turn over sample → active well equipment install → appear → circulate (advance → rafting mud → measurements and direction correct → under manage, assembly unit) → jacking interior equipment Removal → end that puts in place → manage.
Measure control
Jacking construction adopts total powerstation that the push pipe axis is measured control, and instrument support and open caisson rear backrest break away from, and independent rack is set in open caisson.
The light target sensor and the data handling system that receive laser beam in the push pipe have formed jacking attitude measurement control system, are used for measuring vertical and horizontal movement, laser incident horizontal angle and the push-bench cutting elevation angle, cabin and the roll angle of the measurement plate in the push-bench cutting cabin take the laser guide point as reference.
Control room, ground operating personnel are by remote distance camera monitoring and microsystem, survey data processed calculate and the push-bench position deviation that result reflects is presented on the operating room screen, indoor error correct jack pair push-bench is revised the correction operation.
The jacking parameter
Under computer control, jack generally can the jacking of 100mm/min speed, and simultaneously, the flowmeter survey flow makes the mud pipe flow remain on 1.07m
3/ min, muddy water proportion 1.15t/m
3, about the pressure 80Kpa of muddy water cabin, muddy water flow Q1≤0.65m
3/ min keeps muddy water cabin pressure.
Initial jacking
The initial jacking of push-bench is one of key link of jacking construction, its main contents comprise: go out hole front stratum precipitation and soil stabilization, start pedestal, push-bench machine of push-bench is set assembles debugging in place, seal expanding ring, push-bench test running are installed, remove the interim wall in hole, the pressurization of the push-bench machine injection scope of operation and jacking etc.
When the pile body sealing is adopted in the active well outside, because muddy water machine cutter head still has larger stone after grinding at a slow speed, should adopt the heavy caliber dredge pump.
The active well water stop device for opening should be guaranteed good stagnant water effect, according to the flange that design is reserved, at flange twice active well water stop device for opening is installed, and utilizes injected hole pre-buried before the rubber water-proof flange, the pressure injection bentonite slurry.
The control of push-bench attitude
In the jack-in process, the situations such as rotating deviation, the deviation of directivity might appear in head, according to the principle of " diligent survey, duty are entangled, entangled less ", utilize the extension type jack of head setting repeatedly to finely tune the jacking direction.
Slurry damper control
For utilizing mud to carry out the jacking drag reduction, can adopt the head external diameter than the large 30mm of caliber, namely outer the and soil body of pipe can form the thixotropic slurry film of 15mm, reduces the frictional force between tube coupling outer wall and soil layer, thus the top power when reducing jacking.
The top pipe slurry injection system is divided into the head synchronous grouting and pipeline is mended slurry, selects respectively the slurries of A slurry and two kinds of different formulations of B slurry.
Slurry configurations technical indicator parameter list
Grouting pressure: greater than groundwater pressure, grouting amount is 3～5 times of structure void.
According to the test section monitored data, adjust the mud proportioning, 2 pipes in every interval are established 1 and are mended slurry section totally 4 injected holes in whole pipeline, mend slurry and should carry out successively in order, and per tour is no less than 2 circulations, quantitatively pressure injection.
The control of appearing
When push-bench was appeared, front soil mass consolidation intensity was higher, because push-bench and ground interlayer zerofriction force, push-bench easily wafts in the rotation, and easily forms larger corner, needs to strengthen the push-bench attitude measurement, can adopt the measure adjustment such as the cutterhead rotating deviation of appearing, and be controlled in the standard allowed band.
Because tube coupling is standard knot, push pipe length and standard knot length modulus not necessarily mate, and after appearing, should in time carry out cutting process to tube coupling, and the harmless cutting of machinery is adopted in suggestion, builds at last the structure of sealing up a door by laying bricks or stones.
3, comb construction
The comb preferred arrangement
Each layer comb opposite joint of trying one's best is arranged, and guarantees that passage is unimpeded, and is closely knit to guarantee concrete pouring, and satisfies " Code for design of cables of electric works " (GB50217-2007) to the requirement of cover tube pitch.
The construction section separating technology
Consider the unimpeded of the pressure of safety, pumping of personnel operation and pump line, whole section push pipe should be divided into some construction sections, and to be controlled at about 40m～60m be a construction section, and separate with customization 8mm thick isolate steel plate, and the collar aperture position after determining according to arranging finishes punching in advance, and steel plate and push pipe inwall closely are connected and fixed.
The comb method
To shown in Figure 3, the push pipe 3 inner sleeves 2 comparatively difficulty of arranging is transported to prefabricated pipe in the push pipe first referring to Fig. 1, and the operator arranges on first from lower by root.
The anti-floating technology
Because tubing is lighter, the necessary fixation of tubing will be avoided the floating situation in the casting process especially, and self-control band screw rod 5 formula band iron fixtures 1 are adopted in design between tubing, and each layer comb fixed, and are showy when guaranteeing to build concrete.
4, concrete pouring construction
According to designing requirement, must pour into concrete between sleeve pipe, sleeve pipe is firmly indeformable during with the assurance threading.Because general design stringing quantity is more, people's construction of also can't standing is to guarantee construction quality, and I take charge of from having created the construction technology that walkthrough is made pump line, subsectin bottler self-compaction fine-stone concrete by oneself.
Divide according to construction section division board be set, and the sleeve pipe of arranging fixing after, utilize residue upper space in the pipeline, send into after adopting φ 180 steel pipes to weld piecemeal and be used for pumping concrete in the pipe.
According to result of the test, high fluid self dense fine-stone concrete gravity flow distance is about 25m, according to construction section length, calculates pump line and gos deep into the interior length of construction section, paragraph by paragraph pouring.
Closely knit for guaranteeing concrete pouring, elder generation as test section, is in time got rid of the initial segment for air after guaranteeing to pour into concrete in the closed section, reserves a venthole pipeline, builds the front stopper temporary plugging of using, and avoids managing interior penetration concrete.
By bright light torch, douche etc., whether blockedly detect in all combs after perfusion is finished.
5, threading construction
At first be sidelong into lead-in wire at open caisson one, at opposite side, draw piecemeal by special-purpose draw-gear, can finish smoothly disposable threading, and guarantee that cable is not damaged.
Claims (3)
1. jacking-type cable sleeve channel design, it is characterized in that: comprise two tip cable wells, be communicated with two tip cable wells the push pipe passage, be arranged in the sleeve pipe in the push pipe passage, be provided with the band iron fixture fixing with the push pipe conduit wall in the described push pipe passage, separate the sleeve pipe of arranging spacing by the band iron fixture; Be perfused with concrete between each sleeve pipe in described push pipe passage, the air line distance of two tip cable wells is not more than 250 meters.
2. jacking-type cable sleeve channel design according to claim 1, it is characterized in that: described push pipe passage is separated into a plurality of sections at length direction by isolate steel plate, each segment length is 40m～60m, be distributed with the through hole that wears sleeve pipe on the described isolate steel plate, each sleeve pipe adopts opposite joint comb mode to arrange.
3. jacking-type cable sleeve channel design according to claim 2, it is characterized in that: described isolate steel plate top is provided with the venthole pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320216665 CN203239355U (en) | 2013-04-26 | 2013-04-26 | Jacking type cable sleeve channel structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320216665 CN203239355U (en) | 2013-04-26 | 2013-04-26 | Jacking type cable sleeve channel structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203239355U true CN203239355U (en) | 2013-10-16 |
Family
ID=49316665
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320216665 Expired - Lifetime CN203239355U (en) | 2013-04-26 | 2013-04-26 | Jacking type cable sleeve channel structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203239355U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109119943A (en) * | 2018-09-10 | 2019-01-01 | 国网天津市电力公司 | System of laying optimization method of the cable at push pipe both ends |
| WO2021234516A1 (en) | 2020-05-20 | 2021-11-25 | Namaya Ltd | Systems and methods of constructing intake-output assemblies for water desalination plants |
| WO2021245485A1 (en) | 2020-06-04 | 2021-12-09 | Namaya Ltd. | Systems assemblies and methods of pipe ramming prefabricated members with a structured layout |
| CN113954231A (en) * | 2021-11-05 | 2022-01-21 | 北京城建北方设备安装有限责任公司 | Weak current sleeve and manufacturing method thereof |
-
2013
- 2013-04-26 CN CN 201320216665 patent/CN203239355U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109119943A (en) * | 2018-09-10 | 2019-01-01 | 国网天津市电力公司 | System of laying optimization method of the cable at push pipe both ends |
| WO2021234516A1 (en) | 2020-05-20 | 2021-11-25 | Namaya Ltd | Systems and methods of constructing intake-output assemblies for water desalination plants |
| WO2021245485A1 (en) | 2020-06-04 | 2021-12-09 | Namaya Ltd. | Systems assemblies and methods of pipe ramming prefabricated members with a structured layout |
| CN113954231A (en) * | 2021-11-05 | 2022-01-21 | 北京城建北方设备安装有限责任公司 | Weak current sleeve and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 215008 No. 88 Yang Cheng Road, Suzhou, Jiangsu, Xiangcheng District Patentee after: ZHONGYIFENG CONSTRUCTION GROUP Co.,Ltd. Address before: 215131 Xiangcheng District, Jiangsu Province, Yang Cheng Road, No. 88, No. Patentee before: SUZHOU ERJIAN CONSTRUCTION GROUP Co.,Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20131016 |
|
| CX01 | Expiry of patent term |