CN105697932A - Water feed pipe construction structure capable of preventing flexible cast-iron drain pipe from leaking and water feed pipe construction technology - Google Patents
Water feed pipe construction structure capable of preventing flexible cast-iron drain pipe from leaking and water feed pipe construction technology Download PDFInfo
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- CN105697932A CN105697932A CN201610155299.7A CN201610155299A CN105697932A CN 105697932 A CN105697932 A CN 105697932A CN 201610155299 A CN201610155299 A CN 201610155299A CN 105697932 A CN105697932 A CN 105697932A
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- Prior art keywords
- pipe
- cast iron
- connecting rod
- flexible cast
- bracing frame
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Classifications
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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
- F16L57/00—Protection of pipes or objects of similar shape against external or internal damage or wear
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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
- F16L1/11—Accessories therefor, e.g. anchors for the detection or protection of pipes in the ground
Abstract
The invention discloses a water feed pipe construction structure capable of preventing flexible cast-iron drain pipes from leaking and a water feed pipe construction technology. The construction structure comprises the flexible cast-iron drain pipes and sleeves. Supporting frames which are used for enhancing the compressive strength of the flexible cast-iron drain pipes are arranged on two sides of bell and spigot faucets of the flexible cast-iron drain pipes and at the two ends of the sleeves. Each supporting frame comprises two vertical reinforcing rods and a transverse connecting rod. The construction technology comprises the following steps: preparing for construction; preparing materials, and transporting the materials to corresponding fields; mounting the flexible cast-iron drain pipes and the sleeves; marking rectangular frames at the upper ends of the sleeves; erecting the supporting frames at notches; conducting antiseptic treatment on the supporting frames; sealing the notches; and checking whether the mounting of a water feed pipe is qualified or not, and then backfilling a groove. The water feed pipe construction structure and the water feed pipe construction technology have the advantages that the supporting frames are erected on the flexible cast-iron drain pipes, so that external pressure and vibration can be effectively shared, and the leaking of the cast-iron drain pipes is prevented.
Description
Technical field
The present invention relates to the construction technology of a kind of feed pipe pipe network, particularly a kind of feed pipe constructing structure being prevented from flexible water leakage of cast iron pipe being applied to highway intersection and construction technology thereof。
Background technology
In architectural engineering outdoor water supply pipe road engineering, outdoor feedwater adopts the cast iron feed pipe that flexible socket joint connects mostly。Owing to cast iron feed pipe adopts the mounting means of socket joint connection, construction technology is simple, is widely used in the installation in the outdoor water supply pipe road of architectural engineering。In the installation process of outdoor water supply pipe net, the highway of building surrounding, the particularly highway of Ji Tiao intersection, short has 6 meters, long do not have 16 meters, 24 meters not etc., often there are pump truck, digging machine, bull-dozer, lorry process, produce bigger vibration, cause the flexible cast iron feed pipe at highway crossing place often to leak。Common practice sets up distance sleeve pipe at highway department excessively exactly, it is possible to solve problem above。But after flexible cast iron feed pipe water flowing, the rubber ring joint that socket joint connects to expand, and construction section cast iron feed pipe is subject to uneven load in distance sleeve pipe and can bend, and drainage also often occurs。
Summary of the invention
For above-mentioned the deficiencies in the prior art, the technical problem to be solved is:
In the installation process of outdoor water supply pipe net, send it to, as run into, the highway crossed, bigger vibration being produced because of the process of road up train, thus affecting the service life of flexible cast iron feed pipe, causing the phenomenon that bell socket shifts, misplaces, leaks。
In order to solve above-mentioned technical problem, present invention employs following technical scheme:
A kind of feed pipe constructing structure being prevented from flexible water leakage of cast iron pipe, it includes the flexible cast iron pipe that mutual socket joint is connected and linked together by seal with elastometic washer, flexible cast iron pipe is arranged with a sleeve pipe, it is characterized in that, a bracing frame for increasing flexible cast iron pipe comprcssive strength it is equipped with in the both sides of flexible cast iron pipe bell and spigot and sleeve pipe two ends, support frame as described above is made up of two vertically arranged connecting rods reinforcing bar and a horizontally set, the two ends up and down of described reinforcing bar, the two ends, left and right of connecting rod are all against on the inwall of sleeve pipe, and fixing with internal surface of sleeve pipe be connected；Described reinforcing bar is through connecting rod end and is secured to connect, and reinforces the distance between bar equal with the external diameter of flexible cast iron pipe。
Further, in order to prevent reinforcing bar from getting rusty, increasing its service life, described reinforcing bar is made up of reinforcing bar or round steel；For the ease of fixing with reinforcing bar, described connecting rod adopts angle steel to make, and is arranged with two vertical through holes in connecting rod, and described reinforcing bar runs through this through hole and is vertically fixed in connecting rod。Connecting rod is angle steel, and its joint face is wider, meanwhile, by offering through hole in connecting rod, in the process installed, it is possible to be easy to reinforce bar location so that reinforces and is clamped on flexible cast iron pipe after bar is installed。
The construction technology of a kind of feed pipe, it is characterised in that it comprises the steps:
S1: preparation of construction: according to feed pipe construction drawing, counts the length of the flexible cast iron pipe needed for each construction section and sleeve pipe, and calculates the quantity of bracing frame required for the flexible cast iron pipe bellmouth both sides place in each sleeve pipe, sleeve pipe two ends place respectively；S2: prepare material according to the quantity of the flexible cast iron pipe counted in step one, sleeve pipe, bracing frame, and above-mentioned material is transported corresponding place；S3: according to feed pipe construction drawing, flexible cast iron pipe and sleeve pipe are installed: first, dig out the buried groove of corresponding length on the ground, and in buried groove, place the flexible cast iron pipe of respective numbers, the instrument that then passes through is fixed together after adjacent flexible cast iron pipe grafting, finally, then by casing pipe sleeve flexible cast iron pipe after installation is complete；S4: the length according to flexible cast iron pipe, the plug-in position of flexible cast iron pipe is indicated at sleeve upper end, then being 250mm ~ 400mm rectangle frame going out to indicate a length apart from this marking line left side and the right 200mm, the end of described length graticule forms the angle of 30 °-150 ° between line and the horizontal line between the sleeve pipe center of circle；S5: cut an otch big with its grade at the rectangle frame place that sleeve pipe indicates, and set up a bracing frame in each incision；S6: each bracing frame is done preservative treatment；S7: the section cut out in step 5 is placed on respective cut place, and section is welded on incision；S8: check that whether feed pipe Pipe installing is qualified, then trench backfill。
As optimization, in step 5, the concrete installation steps of bracing frame are as follows: A, connecting rod be placed directly in above flexible cast iron pipe, and two ends directly contact with sleeve pipe and weld；B, two reinforcing bars are each passed through the vertical through holes of connecting rod after weld with connecting rod, described reinforcing bar two ends all with casing-contact welding, so make the reinforcing bar in each bracing frame be clamped by flexibility cast iron pipe, thus forming a firmly bracing frame。This mounting means is mainly otch as gathering hole, fixing after connecting rod and reinforcing bar being put into from this incision respectively, this mode progressively put into and be welded and fixed, and when being welded to connect bar, its working place is very big, but, owing to step is many, efficiency is slower。
As optimization, in upper step 5, bracing frame can also be installed in the following way: A, by reinforce bar through connecting rod vertical through holes after be welded in connecting rod, form a bracing frame；B, from incision, bracing frame is put into, and the two ends, left and right of the lower end and connecting rod that reinforce bar in bracing frame are all welded on internal surface of sleeve pipe。This mounting means reinforces bar and connecting rod by first assembling, being put into by bracing frame after assembling again through otch, and be welded and fixed, operating procedure is less, just reinforcing bar and connecting rod can be fixed together outside pipe, it is to avoid the problem that welding operation space is little in cast iron pipe pipe。But, due to be assemble after place into, the space of welding of connecting rod and cast iron pipe tube wall will be very narrow and small, and the operating technology of welder is had higher requirement。
As optimization, in step 6, antiseptic concrete mode is twice asphalt caulk of outer surface brushing at bracing frame。Asphalt caulk has the performance of good water-fast, moisture resistance, anticorrosion, anti-chemical reagent, and pitch coating is easily removed by organic solvent, therefore can also be used for sealing up for safekeeping antirust, and the protection for sealing rear support stand has good effect。Meanwhile, the cost of asphalt caulk is very low, it is possible to promote on a large scale。
Compared with prior art, feed pipe constructing structure and the construction technology thereof of what the present invention obtained be prevented from flexible water leakage of cast iron pipe have the advantage that
1, by being respectively provided with a bracing frame in the both sides at flexible cast iron pipe socket joint place; can effectively by flexible cast iron pipe and telescopic joint; form an entirety, increase the intensity at this place, simultaneously; the socket joint place of flexible cast iron pipe is the weakest; bracing frame is set at this, and bracing frame and sleeve pipe are welded and fixed, it is possible to effectively the weight on highway is shared part to sleeve pipe place; the flexible cast iron pipe of protection will not deform under weight effectively, thus avoiding the generation of flexible water leakage of cast iron pipe phenomenon。
2, the simple in construction of bracing frame, easy for installation, has good operability。Wherein, make required material and be conventional angle steel and reinforcing bar, and the length of angle steel and reinforcing bar is shorter, the tailing that a part can be utilized on-the-spot makes, it is substantially reduced cost, and to efficiently solve be the direction of current construction and installation industry development, provide favourable for the construction of engineering Creating Green and ensure。
Accompanying drawing explanation
Fig. 1 is the attachment structure schematic diagram of flexible cast iron pipe and sleeve pipe in embodiment；
Fig. 2 is bracing frame mounting structure schematic diagram in sleeve pipe in embodiment。
In figure: flexible cast iron pipe 1, otch 11, sleeve pipe 2, bracing frame 3, reinforcing bar 31, connecting rod 32。
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is further described。
Embodiment:
Present embodiments provide a kind of feed pipe constructing structure being prevented from flexible water leakage of cast iron pipe, such as Fig. 1, shown in Fig. 2, it includes the flexible cast iron pipe 1 that mutual socket joint is connected and linked together by seal with elastometic washer, flexible cast iron pipe 1 is arranged with a sleeve pipe 2, a bracing frame 3 for increasing flexible cast iron pipe 1 comprcssive strength it is equipped with in the both sides of flexible cast iron pipe 1 interface, support frame as described above 3 is made up of two vertically arranged connecting rods 32 reinforcing bar 31 and a horizontally set, the lower end of described reinforcing bar 31, the two ends, left and right of connecting rod 32 are all against on the inwall of sleeve pipe 2, and fixing with sleeve pipe 2 inwall be connected；Described reinforcing bar 31 is through connecting rod 32 end and is secured to connect, and reinforces the distance between bar 31 equal with the external diameter of flexible cast iron pipe 1。
In the present embodiment, reinforcing bar 31 and be made up of reinforcing bar, described connecting rod 32 is made up of angle steel, is arranged with two vertical through holes in connecting rod 32, and described reinforcing bar 31 runs through this through hole and is vertically fixed in connecting rod 32。Above-mentioned vertical equal with the external diameter of flexible cast iron pipe 1 by the spacing between inner side edge edge。
The construction technology of above-mentioned feed pipe constructing structure, comprises the steps:
S1: preparation of construction: according to feed pipe construction drawing, count the length of the flexible cast iron pipe 1 needed for each construction section and sleeve pipe 2, and calculate the quantity of bracing frame 3 required for the flexible cast iron pipe 1 bellmouth both sides place in each sleeve pipe 2, sleeve pipe 2 two ends place respectively；
S2: prepare material according to the quantity of the flexible cast iron pipe 1 counted in step one, sleeve pipe 2, bracing frame 3, and above-mentioned material is transported corresponding place；Making place, job site should build enclosure wall by laying bricks or stones, carries out closed management, and meanwhile, field planted agent cleans neatly, and material is stacked neatly on request, and has sign board, fragment data warehouse-in classification pile；
S3: according to feed pipe construction drawing, flexible cast iron pipe 1 and sleeve pipe 2 are installed: first, dig out the buried groove of corresponding length on the ground, and in buried groove, place the flexible cast iron pipe 1 of respective numbers, the instrument that then passes through is fixed together after adjacent flexible cast iron pipe 1 grafting, finally, then by sleeve pipe 2 overlap on flexible cast iron pipe 1 after installation is complete (as shown in Figure 1)；
S4: the length according to flexible cast iron pipe, the plug-in position of flexible cast iron pipe 1 is indicated at sleeve upper end, then being 250mm ~ 400mm rectangle frame going out to indicate a length apart from this marking line left side and the right 200mm, the end of described length graticule forms the angle of 30 °-150 ° between line and the horizontal line between sleeve pipe 2 center of circle；This otch can not only be easily installed bracing frame 3, additionally it is possible to provides a wider installing space for bracing frame 3；
S5: cut an otch 11(big with its grade at rectangle frame place that sleeve pipe 2 indicates as shown in Figure 1), and set up a bracing frame 3 in each incision；
S6: at twice asphalt caulk of outer surface brushing of each bracing frame 3, thus completing the preservative treatment of bracing frame 3；
S7: the section cut out in step 5 is placed on respective cut 11 place, and section is welded on otch 11 place；
S8: check that whether feed pipe Pipe installing is qualified, then trench backfill, make evenness of road surface。
Concrete, in above-mentioned steps five, the installation steps of bracing frame 3 have two ways, and mode one is as follows:
A, connecting rod 32 is placed directly in above flexible cast iron pipe 1 by otch 11, its two ends is directly contacted with sleeve pipe 2 and welds；B, two reinforcing bars 31 are each passed through the vertical through holes of connecting rod 32 after weld with connecting rod 31, the lower end of described reinforcing bar 31 contacts with sleeve pipe 2 and welds, and so makes to reinforce bar 31 and is clamped by flexibility cast iron pipe 1, thus forming a firmly bracing frame。It should be noted that when connecting rod 32 makes, it is necessary to assure connecting rod 32 and end face flat contact on flexible cast iron pipe 1；Reinforce bar 31 and flexible side, cast iron pipe 1 both sides perpendicular contact, to ensure that angle reinforces bar 31 and flexibility cast iron pipe 1 is firmly clamped by connecting rod 32。
The another kind of installation steps of bracing frame 3 are: A, by reinforce bar 31 through connecting rod 32 vertical through holes after be welded in connecting rod 32, form a bracing frame 3；B, from otch 11, bracing frame 3 is put into, and the two ends, left and right of the lower end and connecting rod 32 that reinforce bar 31 in bracing frame 3 are all welded on sleeve pipe 2 inwall。
Finally it should be noted that, above example is only in order to illustrate technical scheme but not restriction technologies scheme, although the present invention has been described in detail by applicant with reference to preferred embodiment, it will be understood by those within the art that, technical scheme is modified or equivalent replacement by those, without deviating from objective and the scope of the technical program, all should be encompassed in the middle of scope of the presently claimed invention。
Claims (6)
1. the feed pipe constructing structure being prevented from flexible water leakage of cast iron pipe, it includes the flexible cast iron pipe (1) that mutual socket joint is connected and linked together by seal with elastometic washer, flexible cast iron pipe (1) is arranged with a sleeve pipe (2), it is characterized in that, a bracing frame (3) for increasing flexible cast iron pipe (1) comprcssive strength it is equipped with in the both sides of each two adjacent flexible cast iron pipe (1) bell and spigot and sleeve pipe two ends, support frame as described above (3) is made up of the connecting rod (32) of two vertically arranged reinforcing bars (31) and a horizontally set, the lower end of described reinforcing bar (31), the two ends, left and right of connecting rod (32) are all against on the inwall of sleeve pipe (2), and fixing with sleeve pipe (2) inwall be connected；Described reinforcing bar (31) is through connecting rod (32) end and is secured to connect, and it is equal with the external diameter of flexible cast iron pipe (1) to reinforce the distance between bar (31)。
2. the feed pipe constructing structure being prevented from flexible water leakage of cast iron pipe according to claim 1, it is characterized in that, described reinforcing bar (31) is made up of reinforcing bar or round steel, described connecting rod (32) is made up of angle steel, being arranged with two vertical through holes in connecting rod (32), described reinforcing bar (31) is run through this through hole and is vertically fixed in connecting rod (32)。
3. the construction technology of a feed pipe, it is characterised in that it comprises the steps:
S1: preparation of construction: according to feed pipe construction drawing, count the length of the flexible cast iron pipe (1) needed for each construction section and sleeve pipe (2), and calculate the quantity of bracing frame (3) required for flexible cast iron pipe (1) the bellmouth both sides place in each sleeve pipe (2), sleeve pipe (2) two ends place respectively；
S2: prepare material according to the quantity of the flexible cast iron pipe (1) counted in step one, sleeve pipe (2), bracing frame (3), and above-mentioned material is transported corresponding place；
S3: according to feed pipe construction drawing, flexible cast iron pipe (1) and sleeve pipe (2) are installed: first, dig out the buried groove of corresponding length on the ground, and in buried groove, place the flexible cast iron pipe (1) of respective numbers, the instrument that then passes through is fixed together after adjacent flexible cast iron pipe (1) socket joint, finally, then by sleeve pipe (2) overlap on flexible cast iron pipe (1) after installation is complete；
S4: the length according to flexible cast iron pipe, the bell and spigot position of flexible cast iron pipe (1) is indicated at sleeve upper end, then being 250mm ~ 400mm rectangle frame indicating a length apart from this marking line left side and 200mm place, the right, the end of described length graticule forms the angle of 30 °-150 ° between line and the horizontal line between sleeve pipe (2) center of circle；
S5: cut an otch (11) big with its grade at the rectangle frame place that sleeve pipe (2) indicates, and set up a bracing frame (3) as described in claim 1 ~ 2 in each incision；
S6: each bracing frame (3) is done preservative treatment；
S7: the section cut out in step 5 is placed on respective cut (11) place, and section is welded on otch (11) place；
S8: check that whether feed pipe Pipe installing is qualified, then trench backfill, make evenness of road surface。
4. the construction technology of feed pipe according to claim 3, it is characterised in that in step 5, the concrete installation steps of bracing frame (3) are as follows:
A, connecting rod (32) is placed directly in flexible cast iron pipe (1) above by otch (11), its two ends are directly contacted with sleeve pipe (2) and weld；B, two reinforcing bars (31) are each passed through the vertical through holes of connecting rod (32) after weld with connecting rod (31), described reinforcing bar (31) lower end contacts with sleeve pipe (2) and welds, so make to reinforce bar (31) to be clamped by flexibility cast iron pipe (1), thus forming a firmly bracing frame。
5. the construction technology of a kind of feed pipe according to claim 3, it is characterised in that in step 5, the concrete installation steps of bracing frame (3) are as follows:
A, by reinforce bar (31) through connecting rod (32) vertical through holes after be welded in connecting rod (32), form a bracing frame (3)；B, from otch (11), bracing frame (3) is put into, and the two ends, left and right of the lower end and connecting rod (32) that reinforce bar (31) in bracing frame (3) are all welded on sleeve pipe (2) inwall。
6. the construction technology of a kind of feed pipe according to claim 3, it is characterised in that in step 6, antiseptic concrete mode is twice asphalt caulk of outer surface brushing at bracing frame (3)。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610155299.7A CN105697932B (en) | 2016-03-18 | 2016-03-18 | The feed pipe constructing structure and its construction technology of flexible water leakage of cast iron pipe can be prevented |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610155299.7A CN105697932B (en) | 2016-03-18 | 2016-03-18 | The feed pipe constructing structure and its construction technology of flexible water leakage of cast iron pipe can be prevented |
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| Publication Number | Publication Date |
|---|---|
| CN105697932A true CN105697932A (en) | 2016-06-22 |
| CN105697932B CN105697932B (en) | 2017-09-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610155299.7A Active CN105697932B (en) | 2016-03-18 | 2016-03-18 | The feed pipe constructing structure and its construction technology of flexible water leakage of cast iron pipe can be prevented |
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| CN (1) | CN105697932B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108194764A (en) * | 2017-12-30 | 2018-06-22 | 南京华博供用电工程有限公司 | The means of defence of underground piping during a kind of excavation pipe trench |
| CN110566725A (en) * | 2019-09-02 | 2019-12-13 | 河海大学 | sedimentation-controlled buried large-diameter flexible pipeline and processing method thereof |
| CN113551080A (en) * | 2021-07-30 | 2021-10-26 | 中冶建工集团有限公司 | Construction method for positioning and installing underground parallel pipelines |
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| GB649090A (en) * | 1946-08-17 | 1951-01-17 | Fred Hilmer Rohr | Improvements in or relating to flexible universal joints for pipelines |
| GB2119893B (en) * | 1982-05-10 | 1985-09-11 | Victaulic Plc | Improvements in or relating to pipe repair clamps |
| CN2766027Y (en) * | 2005-02-03 | 2006-03-22 | 东营市天合工贸有限责任公司 | Sleeve and oil gathering pipe connection pipeline and anti-theft device |
| CN201212601Y (en) * | 2008-07-12 | 2009-03-25 | 中冶京唐建设有限公司 | Temporary support in pipe of large diameter |
| CN204459469U (en) * | 2015-02-12 | 2015-07-08 | 黄斌 | A kind of sleeve pipe clamping and fixing device |
| CN205424280U (en) * | 2016-03-18 | 2016-08-03 | 中冶建工集团有限公司 | Can prevent feed pipe construction structures that flexible cast iron pipe leaked |
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2016
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| GB649090A (en) * | 1946-08-17 | 1951-01-17 | Fred Hilmer Rohr | Improvements in or relating to flexible universal joints for pipelines |
| GB2119893B (en) * | 1982-05-10 | 1985-09-11 | Victaulic Plc | Improvements in or relating to pipe repair clamps |
| CN2766027Y (en) * | 2005-02-03 | 2006-03-22 | 东营市天合工贸有限责任公司 | Sleeve and oil gathering pipe connection pipeline and anti-theft device |
| CN201212601Y (en) * | 2008-07-12 | 2009-03-25 | 中冶京唐建设有限公司 | Temporary support in pipe of large diameter |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108194764A (en) * | 2017-12-30 | 2018-06-22 | 南京华博供用电工程有限公司 | The means of defence of underground piping during a kind of excavation pipe trench |
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| CN110566725A (en) * | 2019-09-02 | 2019-12-13 | 河海大学 | sedimentation-controlled buried large-diameter flexible pipeline and processing method thereof |
| CN113551080A (en) * | 2021-07-30 | 2021-10-26 | 中冶建工集团有限公司 | Construction method for positioning and installing underground parallel pipelines |
| CN113551080B (en) * | 2021-07-30 | 2022-04-22 | 中冶建工集团有限公司 | Construction method for positioning and installing underground parallel pipelines |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105697932B (en) | 2017-09-01 |
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