CN102182866A - Backfilling process for large ultra-deep circulating water pipe - Google Patents
Backfilling process for large ultra-deep circulating water pipe Download PDFInfo
- Publication number
- CN102182866A CN102182866A CN 201110073654 CN201110073654A CN102182866A CN 102182866 A CN102182866 A CN 102182866A CN 201110073654 CN201110073654 CN 201110073654 CN 201110073654 A CN201110073654 A CN 201110073654A CN 102182866 A CN102182866 A CN 102182866A
- Authority
- CN
- China
- Prior art keywords
- layer
- concrete
- thickness
- blanking
- circulating water
- 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.)
- Granted
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 38
- 238000000034 method Methods 0.000 title claims abstract description 27
- 239000004567 concrete Substances 0.000 claims abstract description 54
- 239000004576 sand Substances 0.000 claims abstract description 48
- 238000010276 construction Methods 0.000 claims description 24
- 238000005056 compaction Methods 0.000 claims description 18
- 239000000463 material Substances 0.000 claims description 14
- 239000002245 particle Substances 0.000 claims description 9
- 238000012360 testing method Methods 0.000 claims description 8
- 238000009415 formwork Methods 0.000 claims description 7
- 230000003014 reinforcing effect Effects 0.000 claims description 6
- 238000005070 sampling Methods 0.000 claims description 6
- 239000000758 substrate Substances 0.000 claims description 6
- 238000009412 basement excavation Methods 0.000 claims description 4
- 238000012937 correction Methods 0.000 claims description 4
- 210000000115 thoracic cavity Anatomy 0.000 claims description 4
- 230000007935 neutral effect Effects 0.000 claims description 3
- 238000009416 shuttering Methods 0.000 claims description 3
- 239000004575 stone Substances 0.000 abstract description 17
- 230000007797 corrosion Effects 0.000 abstract description 5
- 238000005260 corrosion Methods 0.000 abstract description 5
- 235000013312 flour Nutrition 0.000 description 11
- 241000196324 Embryophyta Species 0.000 description 5
- 238000013461 design Methods 0.000 description 5
- 230000002421 anti-septic effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000011835 investigation Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000008439 repair process Effects 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
- 239000010959 steel Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 208000035126 Facies Diseases 0.000 description 1
- 241000220317 Rosa Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 235000011194 food seasoning agent Nutrition 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 239000004746 geotextile Substances 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003550 marker Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000003534 oscillatory effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000013517 stratification Methods 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Images
Abstract
The invention discloses a backfilling process for a large ultra-deep circulating water pipe, comprising the steps of: (1) constructing a sand bedding layer, wherein the sand bedding layer is 1000-1500 mm in thickness and is made of moderate-coarse sand and coarse sand; (2) covering the pipe by using concrete, wherein the concrete layer is 4000-5500 mm in thickness; and putting a circulating water pipe on the sand bedding layer; (3) backfilling: paving a stone chip layer on the concrete layer, wherein each backfilling layer is less than or equal to 500 mm in thickness, the compactedness is more than 90%, and the total thickness of the stone chip layer is 3000-4500 mm; paving a macadam layer on the stone chip layer, wherein the maximum grain size of the macadam is not more than 100 mm, each backfilling layer is less than or equal to 500 mm in thickness, the compactedness is more than 85%, and the macadam layer is 4000-6000 mm in thickness. By use of the backfilling process, the anticorrosion performance of the large ultra-deep circulating water pipe can be improved so that the pipe can be effectively prevented from corrosion for the service life of 60 years.
Description
Technical field
The invention belongs to a kind of circulating water pipeline backfilling process.
Background technique
The circulating water pipeline engineering is located in the field, is open work, and long construction period needs exceedingly odious weathers such as freezing severe cold of experience summer high temperature and typhoon, winter, and backfill brings a lot of difficulty to pipeline; Pipeline need pass through different geological stratifications, and pool slag backfill layer, mud, horizon d are arranged, and the pipeline ground is various informative.
For large-scale pipeline, especially the circulating water pipeline in the power station adopts common backfilling process, can not satisfy at least 60 years life-spans of pipeline corrosion protection.
Summary of the invention
The deficiency relatively poor for the antiseptic property that overcomes existing circulating water pipeline backfilling process, that working life is short the invention provides and a kind ofly promotes antiseptic property, effectively guarantees that pipeline corrosion protection reaches the large-scale super dark circulating water pipeline backfilling process in 60 year life-span.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of large-scale super dark circulating water pipeline backfilling process, described backfilling process may further comprise the steps:
(1) sand bedding course construction:
Sand bedding course thickness 1000～1500mm, material are medium coarse sand and coarse sand, and work progress is: measure substrate absolute altitude → foundation trench and check and accept and receive → emit sideline → blanking → pave and share → sprinkle water the back with plate pulsator ram-jolt → sand degree of compaction sampling test;
(2) concrete is assured
The thickness of described concrete layer is 4000～5500mm, and circulating water pipeline is placed on the sand bedding course, and work progress is: sample check and correction → concrete shuttering panel making → formwork reinforcing → concrete blanking → examination → form removal is checked → turned over to axis, absolute altitude;
(3) backfill
On described concrete layer, lay the aggregate chips layer, every layer of backfill thickness≤500mm, degree of compaction reaches more than 90%, and the total thickness of aggregate chips layer is 3000～4500mm;
Lay macadam on described aggregate chips layer, the maximum particle diameter of rubble is not more than 100mm, every layer of backfill thickness≤500mm, and degree of compaction reaches more than 85%, and the thickness of described macadam is 4000～6000mm.
Further, in described step (2), concrete layer is provided with the expansion joint one along the per 20～30m of circulating water pipeline direction, and the wide 20mm in expansion joint separates with the pitch board slot.
Further again, in described step (3), the process of aggregate chips layer or macadam blanking: utilize the direct blanking of extension arm excavator, 15 meters of extension arm digging machine armed lever length overalls, in the blanking of foundation ditch both sides, with aggregate chips or rubble directly down to the pipeline top, earlier by the excavator blanking to the foundation ditch again by manually dividing to the four sides.
Further, in described step (3), the process of aggregate chips layer or macadam blanking: the place, thoracic cavity sets up a chute between excavation slope neutral position and pipeline, utilizes machinery blanking in chute again.
Beneficial effect of the present invention mainly shows: promote antiseptic property, effectively guarantee that pipeline corrosion protection reaches 60 year life-span.
Description of drawings
Fig. 1 is the schematic representation of large-scale super dark circulating water pipeline backfill structure;
Embodiment
Below in conjunction with accompanying drawing the present invention is further described.
With reference to Fig. 1, a kind of large-scale super dark circulating water pipeline backfilling process, described backfilling process may further comprise the steps:
(1) sand bedding course construction:
Sand bedding course thickness 1000～1500mm, material are medium coarse sand and coarse sand, and work progress is: measure substrate absolute altitude → foundation trench and check and accept and receive → emit sideline → blanking → pave and share → sprinkle water the back with plate pulsator ram-jolt → sand degree of compaction sampling test;
(2) concrete is assured
The thickness of described concrete layer is 4000～5500mm, and circulating water pipeline is placed on the sand bedding course, and work progress is: sample check and correction → concrete shuttering panel making → formwork reinforcing → concrete blanking → examination → form removal is checked → turned over to axis, absolute altitude;
(3) backfill
On described concrete layer, lay the aggregate chips layer, every layer of backfill thickness≤500mm, degree of compaction reaches more than 90%, and the total thickness of aggregate chips layer is 3000～4500mm;
Lay macadam on described aggregate chips layer, the maximum particle diameter of rubble is not more than 100mm, every layer of backfill thickness≤500mm, and degree of compaction reaches more than 85%, and the thickness of described macadam is 4000～6000mm.
In the present embodiment, described backfill structure comprises sand bedding course 1, concrete layer 2, aggregate chips layer 3 and macadam 4, described concrete layer 2 covers the end face of described sand bedding course 1, circulating water pipeline is arranged in described concrete layer 2, and described concrete layer 2 is provided with the expansion joint for 20～30 meters along circulating water pipeline direction interval; The end face of described concrete layer 2 covers aggregate chips layer 3, and the end face of described aggregate chips layer 3 covers macadam 4.
The thickness of described sand bedding course is 1000～1500mm, and the thickness of described concrete layer is 4000～5500mm, and the thickness of described aggregate chips layer is 3000～4500mm, and the thickness of described macadam is 4000～6000mm.
The work progress of present embodiment is as follows:
(1) sand bedding course construction
Sand bedding course thickness 1000～1500mm, material be medium coarse sand and coarse sand (particle diameter＜2mm), according to near local Investigation of Raw three nuclear power plants, circulating pipe sand consumption is big, particle diameter＜2mm medium coarse sand and coarse sand be source of goods deficiency nearby.Should shift to an earlier date charging according to local material supply situation and construction aggregate scheduling conditions of demand, specified position is stacked near the foundation ditch of ground.
Construction technology process: measure substrate absolute altitude → foundation trench and check and accept and receive → emit sideline → blanking → pave and share → sprinkle water the back with plate pulsator ram-jolt → sand degree of compaction sampling test.
Substrate can not ponding, can not stop up the gutter during sand bedding course construction, forbids the construction of heavy rain weather, and surfacing is accomplished in the sand bedding course construction, and whole closely knit, thickness satisfies.
Suitably add water and use the wooden stick tamping during welding job hole backfill sand.
(2) concrete is assured
Because threeway and elbow concrete backfill highly reach 7m, consider formwork bracing system safety, concrete is built at twice herein, builds to big buttress top for the first time, water to designed elevation for the second time, so template is installed at twice.Other backfill section concretes once water to designed elevation.
Per 20～the 30m of designing requirement plain concrete backfill section is provided with the expansion joint one, and the wide 20mm in expansion joint separates with the pitch board slot; Require and make things convenient for site operation according to drawing, the expansion joint is set at several places down:
A, stay at three-way elbow concrete backfill section and arm concrete backfill boundary and to establish an expansion joint;
B, extend 2.0m at-6.9m and-3.0m area limit place northwards and stay and establish an expansion joint;
C, stay on border, 2# buttress southern side in three-way elbow concrete backfill section and to establish an expansion joint;
D, stay at the every 30m in-3.0m concrete backfill zone and to establish an expansion joint.
Template and supporting system are installed and removed engineering: construction technology process: sample check and correction → template construct → formwork reinforcing → cleaning foreign material → examination → form removal is checked → turned over to axis, absolute altitude.
According to the stay in place form physical dimension, template adopts 12 thick wood veneers to add the assembly of 50 * 100mm Wooden Batten and makes typified form, the on-the-spot back of installing is carried out level, the two-way reinforcing of Vertical direction, is utilized that ∮'s 16 tiltedly draw the bolt fastening with Φ 48 * 3.5mm steel pipe, carry out the template trim designs in advance, based on the combined type template, in internal field preparation template, move on-the-spot the installation again to.The fritter assembly unit must not be arranged, based on bulk.
All templates and support system thereof have enough intensity, rigidity and stability, guarantee the correctness of construction element position, shape and size.
According to axis and absolute altitude, tell each member actual size, position and absolute altitude with steel ruler etc. before the formwork, the good line of ink marker of bullet is as the formwork reference line.The template edge joint position is pasted 20 * 3mm foam single face adhesive tape.
Tiltedly draw screw rod to be provided with by ∮ 12 spacings 600 * 600mm, every screw rod adopts double nut, and nut is reserved outward and is not less than the long screw head of 30mm.Screw arbor with nut at both-ends should be according to template contours size degree of tightness degree of having.
Construction inspection rules and designing requirement are pressed in strictness during form removal, determine the form removal scheme, prevent accident.According to tearing open earlier that prop up the back, tear open after propping up earlier, tear the order of non-bearing part earlier open and carry out, it is too urgent not overexert during form removal, in order to avoid damaged structure concrete quality.
Template must be strengthened protection in demolishing process, remove back block-by-block transmission, must not throwing, and the template that removes is cleaned out, and in time transports, and repairs impaired parts, and the plate face is brushed good isolations oil, and it is neat to press the specification classify and pile up, in order to using again.
Concrete design: concrete construction mixing ratio, entrust the nuclear power laboratory to carry out, it is single to provide mixing ratio by test room, and this engineering concrete mixing ratio has C20, C30, C35.
The concrete blanking: concrete is a deep foundation ditch concrete, selects for use automotive pump and mounted pump to cooperate and carries out the concrete blanking.
Placement layer by layer during casting and compacting of concrete, every layer thickness is controlled in the 300mm, so that hydration heat in time discharges.Arrange the abundant manpower and the machinery that vibrates, worker 8 people of vibrating of every work team, 8 of vibrating heads.Vibrating head is inserted soon and is pulled out slowly.It is evenly distributed to insert the some layout, and pointwise is moved, and order is carried out, and should not omit, and moving interval is not more than 300-400mm.In the process of vibrating, vibrating head must not directly vibrate reinforcing bar and template.Vibrating spear should be stretched into lower-layer concrete during the upper strata concrete vibrating and be not less than 100mm, concrete vibrating should be looked the concrete bubble that do not go out to emerge, and slurry no longer sinks for degree, must not owe to shake and cross and shake.
During concreting, answer running check to observe template, preformed hole, pinpoint the problems and in time correct.
The purpose of concrete conservation system concrete curing is in order to make concrete that suitable curing condition be arranged, guarantee that concrete reaches the intensity of designing requirement in prescribed period of time, and prevent that concrete from producing shrinkage crack, covering and water seasoning, geotextiles covering curing pattern are adopted in concrete maintenance process, this engineering.
(3) backfill
According to local material supply situation investigation and engineering construction experience always of the same type: the above 4500mm of sand bedding course (absolute altitude is-2.00m～2.50m) the interior backfill amount of scope is bigger, restricted by the local material supply, adopt the medium coarse sand backfill to be difficult to satisfy engineering construction progress demand, relatively more sufficient according to market material supply investigation aggregate chips (stone flour) source of goods, and also have part aggregate chips (stone flour) available in the factory.Aggregate chips (stone flour) and sand facies contrast; close to protective action and specific resistance that pipeline rose, thus the above 4500mm of sand bedding course (absolute altitude is-scope of 2.00m～2.50m) in, adopt aggregate chips (stone flour) backfill can satisfy and design and schedule requirement; every layer of backfill thickness≤500mm
Degree of compaction reaches more than 90%; The circulating pipe pipe push up above 3500mm (absolute altitude is to adopt aggregate chips (stone flour) backfill in the scope of 2.50m～6.00m), every layer of backfill thickness≤500mm, degree of compaction reaches more than 90%; Plant area ground down 6000mm (absolute altitude is to adopt the graded broken stone backfill in the scope of 6.00m～12.00m), and maximum particle diameter should not be greater than 100mm, every layer of backfill thickness≤500mm, degree of compaction reaches more than 85%; The circulating pipe pipe pushes up above 3500mm, and (absolute altitude is metal conduit buffer protection district in the scope of 2.50m～6.00m); formerly be designed to the spoil that medium coarse sand or aggregate grading or other meet the backfill quality requirement, same as abovely use with the alternative sand of aggregate chips (stone flour), graded broken stone.Backfill maximum particle diameter≤100mm is down adopted in the 6000mm scope in plant area ground, particle diameter≤5mm particle diameter content surpasses 25% of full weight, because of having pressed designing requirement production in rock crushing plant in the factory, as long as supply can satisfy schedule requirement, so adopt the graded broken stone backfill by former design.
The blanking measure: 1, (absolute altitude is aggregate chips (stone flour) blanking in the scope of-2.00m～2.50m) to the above 4500mm of sand bedding course: reach 30 meters because foundation depth reaches 15 meters, width suitable for reading deeply, give backfill blanking difficulty bigger, especially the backfill between two pipelines, will be under the prerequisite of not damaging pipeline corrosion protection with backfill from the ground blanking to foundation ditch overhead by 14 meters height, and the foundation ditch horizontal equivalent from the foundation ditch center line suitable for reading is long.Utilize common directly blanking of 200 excavators, there are two kinds of schemes feasible in conjunction with past construction experiences: one, to utilize the direct blanking of extension arm excavator, 15 meters of extension arm digging machine armed lever length overalls, in the blanking of foundation ditch both sides, can be with aggregate chips (stone flour) directly down to the pipeline top, for reducing the free drop of aggregate chips (stone flour), reduce excavator hopper height as far as possible.Earlier by the excavator blanking to the foundation ditch again by manually dividing to the four sides.Establish a blanking point every 5～10 meters.Two, the place, thoracic cavity sets up a chute between excavation slope neutral position and pipeline, utilizes machinery blanking in chute again.More than two kinds of schemes do selection again according to field condition.2, pipeline pushes up above 3500mm (absolute altitude is aggregate chips (stone flour) blanking in the scope of 2.50m～6.00m), adopts dump truck directly to open to the down batch turning of foundation ditch limit, and ting model bulldozer or ting model excavator are spread out and put on.3, below ground 6m (absolute altitude is 6.00m～12.00m) in the scope transportation chute is set, dumping car directly by opening in the foundation ditch, is paved with excavator or bulldozer, because of percent consolidation greater than 85%, exerting pressure with the excavator crawler belt gets final product.
The sampling of backfill compacting degree: the test of backfill compacting degree is established 1 point by per 50 meters, and per 1 presses the sampling of 50cm one deck once; For not influencing construction speed, every lamination solidity is tested on the step that is unified in reservation and is taken a sample.
Must be noted that following item during backfill:
After A, circulating water pipeline install and check and accept, should in time carry out backfill, not allow the pipeline of installation is exposed for a long time.Before backfill, the emptying of substrate ponding, mud, foreign material are removed, and must not carry out backfill under the situation of ponding.To underground pipework both sides or before reaching the top backfill all around, should carry out every inspection to underground engineering earlier, perform hidden record and handle the examination formality.
B, the artificial backfill in position, pipeline thoracic cavity, rammer compacter compacting should the evenly backfill simultaneously in the pipeline both sides during backfill, and carries out layering from bottom to top with the compacting of oscillatory type rammer compacter, makes it enough intensity and stability, every layer of empty shop, thickness should not be greater than 500mm.
C, the pipe following backfill in top; Forbid one-sided backfill or push away in the side direction hole to be filled out, be out of shape in order to avoid cause conduit axis displacement and interface with bulldozer; Hand compaction will be used in the tube wall edge during compacting, avoids destroying the anticorrosive coat of pipeline.Should in time repair if any destroying.
D, pipeline end face 3500mm above zone small-sized machine backfill, vibrating rammer compacting, lift height is controlled in the 500mm.
Available conventional construction plant backfill compacting in G, the following 6 meters scopes in the face of land.
E, can reach designing requirement for guaranteeing the backfill degree of compaction; except that adopting compaction in layers; material selection must accomplish that grating is reasonable, and the control water content. because of material and the construction plant difference that each construction part adopts, reply is on-the-spot by carrying out extensive backfill again after the test of degree of compaction test section.
Can backfill reach the degree of compaction requirement of design, closely related with the moisture content of backfill, should carry out following measure for the water content that guarantees earth material can meet the demands:
A, forbid the rainy day backfill, guarantee not ponding of foundation ditch.
B, should control amount of water to big materials of water absorption rate such as aggregate chips (stone flour), sand.
Welding job hole construction: after the sand bedding course construction is finished according to the piping erection situation, cheat with the mini-excavator excacation, and be provided with by sand bag heap in the good working pit both sides of excavation and establish the sand block wall that height is 800mm, backfill is subjected to the restriction of place and execution conditions can only adopt artificial backfill around the working pit, simple artificial backfill progress is slow, to not assurance of duration, selects the press water ramming technology in the construction for use, and, can adopt machinery to ram after pipe top 1m is above and fill out in conjunction with minicomputer instrument compacting way.
Claims (4)
1. one kind large-scale super dark circulating water pipeline backfilling process, it is characterized in that: described backfilling process may further comprise the steps:
(1) sand bedding course construction:
Sand bedding course thickness 1000～1500mm, material are medium coarse sand and coarse sand, and work progress is: measure substrate absolute altitude → foundation trench and check and accept and receive → emit sideline → blanking → pave and share → sprinkle water the back with plate pulsator ram-jolt → sand degree of compaction sampling test;
(2) concrete is assured
The thickness of described concrete layer is 4000～5500mm, and circulating water pipeline is placed on the sand bedding course, and work progress is: sample check and correction → concrete shuttering panel making → formwork reinforcing → concrete blanking → examination → form removal is checked → turned over to axis, absolute altitude;
(3) backfill
On described concrete layer, lay the aggregate chips layer, every layer of backfill thickness≤500mm, degree of compaction reaches more than 90%, and the total thickness of aggregate chips layer is 3000～4500mm;
Lay macadam on described aggregate chips layer, the maximum particle diameter of rubble is not more than 100mm, every layer of backfill thickness≤500mm, and degree of compaction reaches more than 85%, and the thickness of described macadam is 4000～6000mm.
2. a kind of large-scale super dark circulating water pipeline backfilling process as claimed in claim 1, it is characterized in that: in described step (2), concrete layer is provided with the expansion joint one along the per 20～30m of circulating water pipeline direction, and the wide 20mm in expansion joint separates with the pitch board slot.
3. a kind of large-scale super dark circulating water pipeline backfilling process as claimed in claim 2, it is characterized in that: in described step (3), the process of aggregate chips layer or macadam blanking: utilize the direct blanking of extension arm excavator, 15 meters of extension arm digging machine armed lever length overalls, in the blanking of foundation ditch both sides, with aggregate chips or rubble directly down to the pipeline top, earlier by the excavator blanking to the foundation ditch again by manually dividing to the four sides.
4. a kind of large-scale super dark circulating water pipeline backfilling process as claimed in claim 2, it is characterized in that: in described step (3), the process of aggregate chips layer or macadam blanking: the place, thoracic cavity sets up a chute between excavation slope neutral position and pipeline, utilizes machinery blanking in chute again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100736543A CN102182866B (en) | 2011-03-25 | 2011-03-25 | Backfilling process for large ultra-deep circulating water pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100736543A CN102182866B (en) | 2011-03-25 | 2011-03-25 | Backfilling process for large ultra-deep circulating water pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102182866A true CN102182866A (en) | 2011-09-14 |
| CN102182866B CN102182866B (en) | 2012-11-07 |
Family
ID=44569129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100736543A Active CN102182866B (en) | 2011-03-25 | 2011-03-25 | Backfilling process for large ultra-deep circulating water pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102182866B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102943945A (en) * | 2012-12-07 | 2013-02-27 | 中国石油集团工程设计有限责任公司 | Earthquake-proof protection method for pipeline projects passing through fault zones |
| CN103615043A (en) * | 2013-11-06 | 2014-03-05 | 中铁二十一局集团第二工程有限公司 | Surface directly-buried drain pipe assembly bearing large equipment or dynamic load, and construction method thereof |
| CN109812621A (en) * | 2019-02-01 | 2019-05-28 | 北京城建集团有限责任公司 | A kind of concrete pack pipeline configuration and its construction method |
| CN109888712A (en) * | 2019-03-14 | 2019-06-14 | 济南轨道交通集团有限公司 | The backfill protection structure and method of deep basal pit top high-voltage power pipeline |
| CN112555503A (en) * | 2020-12-01 | 2021-03-26 | 上海宝冶集团有限公司 | Biological enzyme curing method for backfilling pipeline groove |
| CN113718800A (en) * | 2021-08-20 | 2021-11-30 | 广东省水利水电第三工程局有限公司 | Method for backfilling and compacting pressure pipeline within limited time |
| CN114960690A (en) * | 2022-06-02 | 2022-08-30 | 中国建筑第八工程局有限公司 | Seepage ditch backfill diversion tool for automatically separating natural-grade distributed sand and construction method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0493431A (en) * | 1990-08-08 | 1992-03-26 | Kensetsu Kiso Eng Co Ltd | Sewage work and execution method therefor |
| CN101565964A (en) * | 2009-05-25 | 2009-10-28 | 青岛恒生源集团建设有限公司 | Construction method for mounting outdoor embedded high-density polyethylene double-wall corrugated drain pipe |
| KR100926173B1 (en) * | 2009-03-31 | 2009-11-10 | 정병양 | Piping structure and method for constructing the same |
| CN101775826A (en) * | 2010-01-26 | 2010-07-14 | 济南金鼎信息技术有限公司 | Construction method for laying water pipes |
-
2011
- 2011-03-25 CN CN2011100736543A patent/CN102182866B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0493431A (en) * | 1990-08-08 | 1992-03-26 | Kensetsu Kiso Eng Co Ltd | Sewage work and execution method therefor |
| KR100926173B1 (en) * | 2009-03-31 | 2009-11-10 | 정병양 | Piping structure and method for constructing the same |
| CN101565964A (en) * | 2009-05-25 | 2009-10-28 | 青岛恒生源集团建设有限公司 | Construction method for mounting outdoor embedded high-density polyethylene double-wall corrugated drain pipe |
| CN101775826A (en) * | 2010-01-26 | 2010-07-14 | 济南金鼎信息技术有限公司 | Construction method for laying water pipes |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102943945A (en) * | 2012-12-07 | 2013-02-27 | 中国石油集团工程设计有限责任公司 | Earthquake-proof protection method for pipeline projects passing through fault zones |
| CN103615043A (en) * | 2013-11-06 | 2014-03-05 | 中铁二十一局集团第二工程有限公司 | Surface directly-buried drain pipe assembly bearing large equipment or dynamic load, and construction method thereof |
| CN109812621A (en) * | 2019-02-01 | 2019-05-28 | 北京城建集团有限责任公司 | A kind of concrete pack pipeline configuration and its construction method |
| CN109812621B (en) * | 2019-02-01 | 2024-01-30 | 北京城建集团有限责任公司 | Concrete encapsulated pipeline structure and construction method thereof |
| CN109888712A (en) * | 2019-03-14 | 2019-06-14 | 济南轨道交通集团有限公司 | The backfill protection structure and method of deep basal pit top high-voltage power pipeline |
| CN112555503A (en) * | 2020-12-01 | 2021-03-26 | 上海宝冶集团有限公司 | Biological enzyme curing method for backfilling pipeline groove |
| CN113718800A (en) * | 2021-08-20 | 2021-11-30 | 广东省水利水电第三工程局有限公司 | Method for backfilling and compacting pressure pipeline within limited time |
| CN114960690A (en) * | 2022-06-02 | 2022-08-30 | 中国建筑第八工程局有限公司 | Seepage ditch backfill diversion tool for automatically separating natural-grade distributed sand and construction method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102182866B (en) | 2012-11-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102182866B (en) | Backfilling process for large ultra-deep circulating water pipe | |
| CN103195158B (en) | Municipal drainage pipeline slurry balance pipe-jacking construction method | |
| CN103758084A (en) | Ecological river interlocking type building blocks and construction method for building protection ridge through building blocks | |
| CN104264680B (en) | The method for processing foundation of Tian Wa joint portion, a kind of collapsible loess slope | |
| CN106088127A (en) | Open caisson construction method | |
| CN101311418A (en) | Exchange filling method for deep-foundation pit and large area equipment foundation | |
| CN110344423A (en) | A kind of drop shaft sinking forms the construction method of water level for local deep foundation pit under high water level | |
| CN111927548B (en) | Method for plugging abandoned coal mine well mouth | |
| CN101597888B (en) | Construction method of municipal drainage culvert sinking trough | |
| CN113774917B (en) | Safe construction method for earth and rockfill excavation and side slope supporting engineering | |
| CN109706952A (en) | Large-scale well-sinking construction method | |
| CN102235007B (en) | Method for supporting deep foundation with upper nail-lower pile combination | |
| CN109812271B (en) | Construction method for shield-crossing limited box culvert | |
| CN110512594B (en) | Simple method for forming hole and pile in cavity of rotary drilling rig | |
| CN112813756A (en) | Roadbed based on municipal soft soil and construction method | |
| CN100523394C (en) | Construction method for concrete shaft wall module masonry | |
| CN110468729A (en) | A kind of frame bridge construction method | |
| CN108316237A (en) | Revetment barricade | |
| Carlsson et al. | Construction experiences from underground works at Forsmark. Compilation report | |
| RU2344231C1 (en) | Method of foundation bed construction by horizontal reinforcing with precast concrete components | |
| CN107299620A (en) | Sluice main structure construction scheme | |
| CN206736957U (en) | A kind of high slope framed revetment | |
| CN110805058B (en) | Foundation construction method of hot-rolled strip steel production line | |
| CN113684785B (en) | Construction process of pile foundation wharf | |
| Zhu et al. | Application of muddy lime soil flushing and backfill method in water conservancy and civil engineering |
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 | ||
| C56 | Change in the name or address of the patentee |
Owner name: CHINA ENERGY CONSTRUCTION GROUP ZHEJIANG THERMAL P Free format text: FORMER NAME: ZHEJIANG THERMAL POWER CONSTRUCTION CO. |
|
| CP03 | Change of name, title or address |
Address after: Hangzhou City, Zhejiang Province, 310020 Qingchun Road No. 77 Patentee after: ZHEJIANG THERMAL POWER CO. Address before: Jianggan District Qingchun Road Hangzhou city Zhejiang province 310016 No. 77 Patentee before: Zhejiang Thermal Power Construction Co. |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20231110 Address after: 310000 No. 36-9, Zhenning Road, Ningxin village, ningwei Town, Xiaoshan District, Hangzhou City, Zhejiang Province Patentee after: ZHEJIANG THERMAL POWER CO. Patentee after: Shanghai Nuclear Engineering Research and Design Institute Co.,Ltd. Address before: No.77, Qingchun East Road, Hangzhou, Zhejiang, 310020 Patentee before: ZHEJIANG THERMAL POWER CO. |
|
| TR01 | Transfer of patent right |