CN102074922B - Communication pipeline construction method - Google Patents
Communication pipeline construction method Download PDFInfo
- Publication number
- CN102074922B CN102074922B CN 201010580954 CN201010580954A CN102074922B CN 102074922 B CN102074922 B CN 102074922B CN 201010580954 CN201010580954 CN 201010580954 CN 201010580954 A CN201010580954 A CN 201010580954A CN 102074922 B CN102074922 B CN 102074922B
- Authority
- CN
- China
- Prior art keywords
- cable
- communication
- construction method
- move
- compound tube
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000004891 communication Methods 0.000 title claims abstract description 90
- 238000010276 construction Methods 0.000 title claims abstract description 52
- 238000013508 migration Methods 0.000 claims abstract description 19
- 230000005012 migration Effects 0.000 claims abstract description 19
- 230000001681 protective effect Effects 0.000 claims abstract description 5
- 238000007789 sealing Methods 0.000 claims abstract description 3
- 150000001875 compounds Chemical class 0.000 claims description 48
- 230000003287 optical effect Effects 0.000 claims description 38
- 230000008859 change Effects 0.000 claims description 34
- 239000000853 adhesive Substances 0.000 claims description 4
- 230000001070 adhesive effect Effects 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 3
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 9
- 239000011148 porous material Substances 0.000 description 7
- 238000013461 design Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 238000011084 recovery Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000004576 sand Substances 0.000 description 3
- 241000209094 Oryza Species 0.000 description 2
- 235000007164 Oryza sativa Nutrition 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 235000009566 rice Nutrition 0.000 description 2
- GOLXNESZZPUPJE-UHFFFAOYSA-N spiromesifen Chemical compound CC1=CC(C)=CC(C)=C1C(C(O1)=O)=C(OC(=O)CC(C)(C)C)C11CCCC1 GOLXNESZZPUPJE-UHFFFAOYSA-N 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000003556 assay Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 210000002445 nipple Anatomy 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Landscapes
- Laying Of Electric Cables Or Lines Outside (AREA)
- Light Guides In General And Applications Therefor (AREA)
- Electric Cable Installation (AREA)
Abstract
The invention relates to a communication pipeline construction method comprising the following steps: cutting or damaging the protective casing pipe of the communication pipeline; directly putting the communication cable of the communication pipeline into a combined pipe arranged on a migration position without cutting; sealing the combined pipe; and further moving the communication pipeline out of a construction area in advance as required to a migration zone to be protected. The construction method is characterized in that migration is carried out in the mode that an internal cable is put and the protective casing pipe is combined, thereby avoiding cutting cables, reducing migration complexity and labor intensity, and quickening construction speed. The construction method does not communication and can obtain unforeseen great economic benefit.
Description
Technical field
The present invention relates to communication line migration and safeguard, being specifically related to that a kind of cost is low, the communication pipeline construction method of easy construction.
Background technology
Along with rapid economic development, urban construction is become increasingly prosperous, and Metro Construction and town road construction and repairerment are also like a raging fire.And pipeline moves that to change engineering be the slubbing operation that whole subway and municipal construction are built, affect whole subway and municipal construction node progress thereupon.Communication line comprises outside communications protection sleeve pipe and internal communication cable, and the communication line migration must also will be avoided as far as possible communication disruption on the basis of pipeline migration, and the protection of the communication security after migration.At present, all communication line migrations adopt general communication pipeline migration construction method, are specially the cable cutover, move the mode of changing, that is: construct early stage AT STATION, at first the construction area of communication line all being moved out, after treating that station is built, recover original communication line.Encounter underground utilities than multizone, communication line moves and changes the bevelling construction that also can follow main body, carries out moving for three times, four times changing.Move each time change communication line all must cutover, use new cable or optical cable to replace to be moved the communication cable changed, except causing communication disruption, also can spend a large amount of time and extra charge.This not only affects greatly the quality of communication network, safety, also makes to move that to change the communication line cost excessive, and construction period lengthens simultaneously.
Have the cable cutover now, move the mode of changing, specifically comprise step:
1) newly-built communication pipe, connect original communication pipe;
2) lay optical cable;
3) verify subscriber data, Business Information in optical cable;
4) declare project cutover and plan (declare cut-over plan and need to shift to an earlier date 45 days, 45 days);
5) cutover optical cable;
6) remove original optical cable and pipeline;
7) typing of cutover optical cable Information System and change.
Summary of the invention
The technical issues that need to address of the present invention are, how a kind of communication pipeline construction method is provided, and avoid or reduce the cable cutover moving the Cheng Zhongneng that corrects one's mistakes.
The technology of the present invention problem solves like this: build a kind of communication pipeline construction method, the compound tube that utilization can be opened along duct orientation comprises the following steps:
Cut or destroy the protective casing of communication line open;
The communication cable of the described communication line of not cutover, directly put into by described communication cable the described compound tube that is laid in the migration position place;
Seal described compound tube.
According to construction method provided by the invention, the method includes, but are not limited to following two kinds:
(i) disposably and permanently move and change: directly from home position, move migration position, as: the architectural communication lines in permanent ground such as the gateway of subway, wind booth;
(ii) move back, that is: also comprise in advance described communication line being shifted out to move from construction area changing zone, described migration is to move back.For example: the communication line of moving back, vertically cross over communication line on main body communication line or enclosed structure.Wherein:
1. at the described described communication cable that changes in zone the surplus of must reserved moving back on the carriage in the staff well that moves;
2. described move to change in zone do not intersect the described communication cable of placement in the staff well, can be parallel, divide into groups parallel, also can be not parallel but do not intersect in the staff well, preferably divide into groups parallel;
3. change zone and place successively from top to bottom large logarithm cable, little logarithm cable and optical cable described moving;
4. moving described that to change in zone whole described communication cables in the staff well be all one whole, that is: is not two communication cables that connect by joint.
According to construction method provided by the invention, described communication cable is cable or optical cable.
According to construction method provided by the invention, described combined pipe is comprised of two parts, and first is placed on described migration position place, and second portion covers in first.
According to construction method provided by the invention, the version of described compound tube includes, but are not limited to following four kinds, wherein second portion encloses circle or ellipse with first together with the cross section of pipeline vertical direction, and circular is in particular cases also square:
(i) second portion is the two halves that distinct size shape is identical with first;
(ii) second portion is the two halves that distinct size shape is not identical with first;
(iii) described second portion and first are the identical two halves of size shape that the pivot joint of activity on one side, another side separate;
(iv) described second portion and first are the different two halves of size shape that the pivot joint of activity on one side, another side separate.
According to construction method provided by the invention, described sealing comprises to be used adhesive and reinforces screw.
According to construction method provided by the invention, described combined pipe adopts dislocation to be fastened and connected can adapt to the communication cable of all lengths.
Communication pipeline construction method provided by the invention, adopt the mode first put internal cable recombinant protective casing to be moved, avoided legacy migration institute must the cable cutover, the complexity changed is moved in minimizing, does not affect communication.While is because labour intensity in engineering process is low, project progress is fast, and the price comparison of tubing itself is reasonable, and the cost of whole engineering has obtained effective control, thereby can save great amount of investment, obtains unforeseen great economic benefit.
The accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, further the present invention is described in detail:
Fig. 1 is the compound tube cross sectional representation of using in the specific embodiment of the invention;
Fig. 2 is the cross sectional representation of two identical part assemblies in compound tube shown in Fig. 1;
Fig. 3 is a kind of optical cable bundle dish schematic diagram in specific embodiment of the invention staff well;
Fig. 4 is another kind of optical cable bundle dish schematic diagram in specific embodiment of the invention staff well;
Fig. 5 is that in specific embodiment of the invention staff well, optical cable lays schematic top plan view;
Fig. 6 is that in specific embodiment of the invention staff well, optical cable lays the main schematic diagram of looking;
Fig. 7 is that the specific embodiment of the invention is moved and changed the stage optical cable and account for the hole site schematic diagram;
Fig. 8 is that the specific embodiment of the invention stage optical cable of moving back accounts for the hole site schematic diagram;
Fig. 9 is the specific embodiment of the invention first step schematic diagram of moving back;
Figure 10 is the specific embodiment of the invention second step schematic diagram of moving back;
Figure 11 is the specific embodiment of the invention the 3rd step schematic diagram of moving back;
Figure 12 is the specific embodiment of the invention the 4th step schematic diagram of moving back.
Embodiment
At first, the concrete compound tube that communication line construction of the present invention is used is described:
As illustrated in fig. 1 and 2, compound tube of the present invention is formed by staggered fastening of identical semi-circular tube assembly, this semi-circular tube is provided with two horizontal edges at joint, on one side horizontal edge, projection is arranged, opposite side has corresponding recess, turns upside down and can fasten, use after adhesive every one section also play a screw or rivet, for reinforcing, form a closed cylindrical space, can place the communication pore that is less than its internal diameter, various model communications optical cable, various model telecommunication cable in space.With between two semi-circular tubes on one side, also arranging and be enclosed within the interface unit on seam, each plays a reinforcing screw or rivet the seam both sides.Compound tube of the present invention adopts PVC-U material PVC, the PVC material has excellent flame retardancy, resistance to wear, resistance to chemical corrosion, comprehensive mechanical, electrical insulating property, mechanical property, electrical property is good, acid and alkali-resistance power is extremely strong, therefore be suitable for for a long time be embedded in underground.
Compound tube parcel Communication ray cable of the present invention is mainly used in the dismounting of people's well, pore is damaged, pipeline removes but cable does not move the situation about needing protection that changes.Communication manhole is removed, after the pore breakage, in people's well cable by adopting the compound tube protection, be embedded in underground, to reach communication cable protection purpose.Move and change temporarily for some, also can adopt and abolish pipeline, the mode of mobile cable is moved protection, reduces the cutover of communication cable.
The second, in conjunction with the concrete application scenario of moving the mode changed and illustrate communication pipeline construction method of the present invention:
1, the communication line of moving back
The communication of subway in building is moved to change and generally is divided into two steps: the communication line that the first step will affect subway construction moves out of subway main body construction zone; Second step is, after subway station is built, to recover original communication line.In design, whether we can consider to possess adopts compound tube to recover the cable condition, if conditions being possessed, the middle use PVC compound tube of moving back, can save 50% cable and move and change expense.
2, vertically cross over the main body communication line
The vertical main body communication line of crossing over moves and changes, and in general design, adopts to move for twice to change, and get around for the first time main body and move and change, be for the second time after main body completes, while recovering road, recover to move to change.Adopt the PVC compound tube to move while changing, can adopt suspention+safeguard measure for the first time, in the time of recovery, adopt the PVC compound tube to recover.Can save 100% cable moves and changes expense.
3, communication line on enclosed structure
On enclosed structure, communication line moves to change and generally is divided into two steps: the communication line that the first step will affect ground enclosed structure construction moves out of the enclosed structure construction area; Second step is, after subway station is built, to recover original communication line.The horizontal range of the communication cable general transfer on enclosed structure is very short, adopts the PVC compound tube to move while changing, and adopts for the first time cutover to move and changes, and in the time of recovery, adopts the PVC compound tube to recover.Can save 50% cable moves and changes expense.
4, the architectural communication line in permanent ground such as gateway, wind booth
The architectural communication lines in permanent ground such as gateway, wind booth, the horizontal range of general transfer is very short, and in design, normal employing is disposably and permanently moved and is changed.Use the PVC compound tube to move while changing, the cable that length in reserve is arranged break to pipe resettlement, do not have the length in reserve cable to carry out cutover and move and change.
The 3rd, describe communication pipeline construction method of the present invention in detail:
Communication line migration engineering need change and (ii) move back two stages through (i) moving according to the actual conditions of major project.In engineering that consider to use the compound tube mode to move back, change the stage and need to use compound tube ready for moving back moving.
(i) move and change the stage
Move while changing the stage with in the past to move the journey of correcting one's mistakes basically much the same, change the stage moving, should be noted that following 4 points:
What 1) optical cable was suitable reserves
As shown in Figures 3 and 4, lay and move while changing optical cable, the optical cable of reserved suitable surplus on the carriage of stipulating in the staff well (the optical cable surplus be take can meet length while moving back be prerequisite, do not do too much reserving), coil and stay the position that optical cable need be good according to design code properly to place.Every optical cable can only have a bundle dish to stay in people's well, and dish stays cable to tie up more than having at least everywhere, in case dish stays, scatters.Dish stays on optical cable hangs the optical cable sign board, and dish stays two ends respectively to hang an optical cable sign board;
2) between cable and cable, in man-hand hole, forbid to intersect
As illustrated in Figures 5 and 6, the construction while moving back for the ease of the later stage, optical cable changes while laying moving, and forbids to occur intersecting, change at man-hand hole the phenomenons such as hole.Laid and tied up according to the underground cable construction specification;
3) backward is put
As shown in Figure 7, cable move change when design should according to nest of tubes from ground the large logarithm cable of direction down, little logarithm cable, optical cable under.When moving back, as shown in Figure 8, become large logarithm cable under, little logarithm cable, optical cable are upper;
4) move while changing, move back and need the resettlement cable to forbid changing people's well joint in zone moving;
Construction while moving back for the ease of the later stage, move back and need the resettlement optical cable to change while laying moving, and forbids to change man-hand hole nipple in zone moving, and optical cable cutover joint should extend to move and change in regional outer man-hand hole.
(ii) move back the stage
Compound tube is installed and should be carried out after the assay was approved on groove ground, basis.The buried depth of compound tube refers to the distance on compound tube top to road surface, and minimum value should meet the following table regulation.When not reaching while requiring, must take necessary safeguard measure:
| Pipeline location | Greenbelt | Pavement | Driveway |
| The compound tube the minimum depth | 0.8 rice | 1 meter | 1.2 rice |
Table one
The cohort of compound tube should form rectangle, and transversely arranged pore number is preferably even number, and the rectangle height should not be less than width, but a times of highly unsuitable greater than width.
Can lay curved pipe while being subject to landform restriction or avoiding barrier when compound tube is laid, tubing only has and forms under external force the nature radian, forbids the plastic tube thermal bending, and the bending curvature radius should not be less than 20m, and the crooked pipeline segment length must not surpass 120m.
Compound tube enters the man-hand hole place, compound tube bottom apart from the minimum clear distance at the bottom of man-hand hole and compound tube top apart from man-hand hole on cover or the clear distance on upper edge meets the regulation of following table:
| Duct bottom is apart from the bottom of people's (hand) hole | 0.4 |
| The pipeline top is covered in man-hand hole | 0.5 |
| Edge is gone up in the pipeline top in endoporus | 0.5 |
Table two
Prefabricated, the compound tube top of covering on man-hand hole is apart from the hole wall and the first reserved location of people's (hand) aperture circle part that cover in man-hand hole, treat cable moved back after construction.
Need move back to synchronize with cable when compound tube lays and carry out, during pipe laying, tubing should be put into ditch or be penetrated hole with rope by manual delivery and hang, and forbids to roll into ditch.
The compound tube construction procedure of moving back is as follows:
1) the construction first step:
As shown in Figure 9, at first sand or C20 concrete in 10CM is laid in pipe alley bottom, by nest of tubes, one deck compound tube the latter half of the end is according in sand or C20 concrete in the transverse pipe hole count parallel lay-up of design, the drift bolt hole site of compound tube penetrates drift bolt in advance;
2) construction second step:
As shown in figure 10, by moving the horizontal pvc pipe of a row that changes the stage the superiors, break successively, will break cable in pvc pipe according to the former order that takies pore of optical cable and put into successively the compound tube discharge neatly.Original pore and compound tube corresponding relation: upper under, left to a left side, right to the right side;
3) the 3rd step of constructing:
As shown in figure 11, will manage wing place scrub, dry.Pipe wing place is coated with special-purpose adhesive, makes upper and lower Guan Yi close adhesion.Fastener tube wing place drift bolt after upper and lower Guan Yi close adhesion;
4) the 4th step of constructing:
As shown in figure 12, lay middle sand or the C20 concrete is buried the ground floor compound tube, lay second layer compound tube the latter half simultaneously.The top and the bottom compound tubes adopts dislocation to stack, without as needing to continue specially between the common PVC tube and tube.Adjacent two pipe dislocation stacked position should be not less than 2 meters;
5) repeat above step, to completing cable, move and change.
The 4th, describe the huge contribution of the non-foresight of the inventive method in detail in conjunction with the economic benefit compare of analysis of two concrete application:
One, the interim cable of certain subway station moves and changes:
Total cost is 5,000,000, recovers cable and moves that to change expense be 5,000,000.Temporary pipeline moves and changes expense 1,000,000, and the recovery pipeline moves and changes expense 1,000,000.Compound tube of the present invention moves and changes 1.5 times of calculating according to the proper communication pipeline.The pipeline construction duration calculated according to 10 days, and the cable cutover construction period calculated according to 60 days.Construction period of the present invention calculated according to 10 days.The comparison is as follows shows:
| Use location | Pipeline moves and changes expense | The cutover cable moves and changes expense | The time of changing is moved in cutover | The PVC compound tube moves and changes expense | PVC compound tube cable moves and changes expense | The PVC compound tube moves the time of changing | Explanation |
| The communication line of moving back | 1000000 | 5000000 | 70 days | 1500000 | 0 yuan | 10 days | Avoiding a cable to move changes |
| The vertical main body communication line of crossing over | 2000000 | 1000 ten thousand | 140 days | 1500000 | 0 yuan | 10 days | Avoiding twice cable to move to change with a pipeline moves and changes |
| Communication line on enclosed structure | 2000000 | 1000 ten thousand | 140 days | 2500000 | 5000000 | 70 days | Avoiding a cable to move changes |
| The architectural communication lines in permanent ground such as gateway, wind booth | 1000000 | 5000000 | 70 days | ? | ? | ? | Fixed according to actual conditions |
Table three
Two, the part communication line recovers
When the subway station gateway is located due to excavation, do not take any safeguard measure, cause whole pore exposed above main body, and communication line can be adopted recovery in two ways, first kind of way is that conventional cable cutover mode is recovered; Second way mode of the present invention is recovered.While adopting mode of the present invention to recover, belong to the permanent ground such as gateway, wind booth due to its position architectural, communicate pipeline and disposably and permanently move and change.
(i) construction period contrast:
Existing cable method for cutting over and step:
1) newly-built communication pipe, connect original communication pipe (1 day);
2) lay optical cable (1 day);
3) verify subscriber data, Business Information (1 day) in optical cable;
4) declare project cutover and plan (declare cut-over plan and need to shift to an earlier date 45 days, 45 days);
5) cutover optical cable (1 day);
6) remove original optical cable and pipeline (1 day);
7) typing of cutover optical cable Information System and change (2 days).
The inventive method and step:
1) newly-built communication pipe adopts compound tube to move original cable (1 day) simultaneously.
(ii) economic comparison:
Two kinds of reset modes are made budgetary estimate, carry out economic comparison, see the following form:
| Sequence number | Project name | Tradition cutover mode is moved and is changed (unit) | Mode of the present invention (unit) |
| 1 | Communication pipe moves and changes expense | 32112.00 | 40140.00 |
| 2 | Communications optical cable moves and changes expense | 153383.00 | 0.00 |
| 3 | Telecommunication cable moves and changes expense | 76920.00 | 0.00 |
| 4 | Add up to | 262415.00 | 40140.00 |
Table four
Finally, in those of ordinary skills understand scope, in the claims in the present invention scope, various variations all belong to protection scope of the present invention.
Claims (5)
1. a communication pipeline construction method, is characterized in that, the compound tube that utilization can be opened along duct orientation comprises the following steps:
Cut or destroy the protective casing of communication line open;
Communication cable is put into to the described compound tube that is laid in the migration position place;
Seal described compound tube;
Also comprise in advance described communication line being shifted out to move from construction area changing zone, described migration is to move back;
Described move to change in zone do not intersect the described communication cable of placement in the staff well; Described communication cable is cable or optical cable;
Change zone and place successively from top to bottom large logarithm cable, little logarithm cable and optical cable described moving;
Move described that to change in zone whole described communication cables in the staff well be all one whole.
2. construction method according to claim 1, is characterized in that,
Change described moving the described communication cable of reserving the surplus of moving back in zone on the carriage in the staff well.
3. construction method according to claim 1, is characterized in that, described compound tube is comprised of two parts, and first is placed on described migration position place, and second portion covers in first.
4. construction method according to claim 3, is characterized in that, described second portion with the first pivot joint of activity on one side, another side separates or two limits all separate.
5. construction method according to claim 1, is characterized in that, described sealing comprises to be used adhesive and reinforce screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010580954 CN102074922B (en) | 2010-12-09 | 2010-12-09 | Communication pipeline construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010580954 CN102074922B (en) | 2010-12-09 | 2010-12-09 | Communication pipeline construction method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102074922A CN102074922A (en) | 2011-05-25 |
| CN102074922B true CN102074922B (en) | 2013-02-13 |
Family
ID=44033322
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010580954 Expired - Fee Related CN102074922B (en) | 2010-12-09 | 2010-12-09 | Communication pipeline construction method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102074922B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104518446A (en) * | 2013-09-30 | 2015-04-15 | 中铁六局集团有限公司 | Railway communication cable construction method |
| CN105514881A (en) * | 2016-01-29 | 2016-04-20 | 苏州红叶装饰工程有限公司 | Pipe wiring method |
| CN111009871B (en) * | 2019-12-03 | 2021-09-17 | 广东顺德电力设计院有限公司 | Method and system for changing cable by crossing subway |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB515703A (en) * | 1938-06-09 | 1939-12-12 | Metal Trim Ltd | Improvements in or relating to protective casings more particularly for electric cables |
| US6161587A (en) * | 2000-01-12 | 2000-12-19 | Durham; Roland G. | Shield and method for exposing high voltage power lines and the like |
| CN2577486Y (en) * | 2002-08-10 | 2003-10-01 | 兰州双信塑料橡胶厂 | Communication combined pipe |
| CN101752820A (en) * | 2010-02-24 | 2010-06-23 | 周建华 | Underground cable protective sleeve |
| CN201887414U (en) * | 2010-12-03 | 2011-06-29 | 潘立超 | Communication protective tube |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100364196C (en) * | 2000-09-26 | 2008-01-23 | 乔纳森·马克·莫里斯 | Pipe integrated with railway track |
-
2010
- 2010-12-09 CN CN 201010580954 patent/CN102074922B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB515703A (en) * | 1938-06-09 | 1939-12-12 | Metal Trim Ltd | Improvements in or relating to protective casings more particularly for electric cables |
| US6161587A (en) * | 2000-01-12 | 2000-12-19 | Durham; Roland G. | Shield and method for exposing high voltage power lines and the like |
| CN2577486Y (en) * | 2002-08-10 | 2003-10-01 | 兰州双信塑料橡胶厂 | Communication combined pipe |
| CN101752820A (en) * | 2010-02-24 | 2010-06-23 | 周建华 | Underground cable protective sleeve |
| CN201887414U (en) * | 2010-12-03 | 2011-06-29 | 潘立超 | Communication protective tube |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102074922A (en) | 2011-05-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103195440A (en) | Three-layer-structure subway double-line single-pipe circular tunnel | |
| CN210529750U (en) | Cable type utility tunnel system | |
| CN206538789U (en) | A kind of pipe gallery | |
| CN102074922B (en) | Communication pipeline construction method | |
| CN101672189A (en) | Ground source heat pump type heating system used for heat insulating ditch in tunnel | |
| CN106337436A (en) | Rectangular concrete comprehensive pipe gallery prefabricated pipe sections and machining method | |
| CN205954679U (en) | Utility tunnel's pipeline branch mouth | |
| CN106677209A (en) | Intelligent comprehensive pre-fabricating pipe gallery and construction technique thereof | |
| CN205617426U (en) | Cast -in -place bottom plate of utility tunnel and prefabricated outer panel connection structure | |
| CN101148987A (en) | Method for employing whole dark digging method to construct underground station transferring point | |
| CN109099738A (en) | Thin shell type heat exchanger for subway tunnel and installation and construction method thereof | |
| CN214307667U (en) | Ground source heat exchanger mounting structure | |
| CN202324155U (en) | Adjustable corrugated prestress anti-pollution drainage culvert | |
| CN210315654U (en) | Urban tunnel, rail transit interval tunnel and utility tunnel co-construction structure | |
| CN107359582B (en) | Improved structure and improved method for communication double-channel design of transformer substation | |
| CN205911724U (en) | Interval strong and weak magnetron line arrangement structure in tram engineering ground | |
| CN111894623B (en) | Co-building structure and construction method for street crossing channel and underground section tunnel | |
| CN107221885A (en) | Underground pipe gallery cable draws node and its construction method | |
| CN209368878U (en) | Prefabricated underground pipe gallery | |
| CN207567809U (en) | A kind of city integrated piping lane outlet combined system | |
| CN207582497U (en) | A kind of support protection structure of vertical pipe for splitlevel hypogee | |
| CN207572932U (en) | An Improved Structure of Communication Double-ditch Based on Substation | |
| CN207160059U (en) | A kind of prefabricated underground pipe gallery that pieces together of permeable | |
| CN205557580U (en) | Well storehouse cellular -type underground pipe gallery is assembled to adding to prestressing force | |
| CN217679111U (en) | Waterproof foundation pit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130213 Termination date: 20131209 |