CN101294080B - Method for mounting lower spray pipe, clearing tube of coke oven base roof plate with method of directly burring - Google Patents
Method for mounting lower spray pipe, clearing tube of coke oven base roof plate with method of directly burring Download PDFInfo
- Publication number
- CN101294080B CN101294080B CN2008100481504A CN200810048150A CN101294080B CN 101294080 B CN101294080 B CN 101294080B CN 2008100481504 A CN2008100481504 A CN 2008100481504A CN 200810048150 A CN200810048150 A CN 200810048150A CN 101294080 B CN101294080 B CN 101294080B
- Authority
- CN
- China
- Prior art keywords
- pipe
- pipe laying
- laying
- layer
- template
- 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
Images
Landscapes
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The invention relates to a method for installing a lower nozzle and a cleaning pipe on the foundation roof of a coke oven. The direct burying method for installing the lower nozzle and the cleaning pipe on the roof of coke oven foundation is characterized in that the lower portion of a buried pipe (3) is fixed through drill holes of a template (13), the upper portion of the buried pipe is fixed by a fixing frame, and the foundation roof concrete is poured when the buried pipe is buried once, wherein the buried pipe (3) includes the lower nozzle (20) and the cleaning pipe (21). The method has the advantages of high installation accuracy, reduced time, labor and material consumption, and convenient operation.
Description
Technical field
The present invention relates to install the method for jet pipe under the coke oven base roof plate, cleaning pipe.
Background technology
Jet pipe, the installation of cleaning pipe are the last process of brickwork under the coke oven base roof plate, quite a few thousand of quantity, and accuracy requirement is high.Because down jet pipe, cleaning pipe installation method are identical, for ease of statement, this paper is referred to as pipe laying with it.(unit of quantity among Fig. 1 is mm, and α is a maximum allowable offset) as shown in Figure 1, pipe laying size deviation require very strict, and the medullary ray maximum allowable offset of each pipe laying is ± 3mm.Pipe laying is vertical, and the accumulation maximum allowable offset of the relative coke oven base roof plate medullary ray of cross central line also is ± 3mm.
As shown in Figure 9, traditional pipe laying method is pre-buried corrugated tube, makes shaped steel anchor Laian County according to pipe laying centre of location line again after the base roof plate concrete construction is intact and loads jet pipe and cleaning pipe, irritates high-strength castable with the fixing back of reinforcing bar between corrugated tube and pipe laying.
Summary of the invention
The object of the present invention is to provide a kind of method of directly burring that the method for jet pipe under the coke oven base roof plate, cleaning pipe is installed, compare with dress grouting behind the traditional pipe laying, this method has the setting accuracy height, saves time, saving of labor, material-saving, convenience operation.
To achieve these goals; Technical scheme of the present invention is: method of directly burring is installed jet pipe and the method for cleaning pipe under the coke oven base roof plate; It is characterized in that: the bottom of pipe laying is fixing by template boring, and the top of pipe laying is fixed with anchor, and pipe laying is once directly buried after-pouring base roof plate concrete underground; Said pipe laying is for jet pipe and cleaning are managed down.
The bottom of described pipe laying is fixed as by template boring: 1) adopt flitch and scaffolding steel pipe supporting template; 2) centre of location line in the pipe laying hole of pipe laying is inserted in measuring on template; 3) get out the pipe laying hole in the point of crossing of the centre of location line in pipe laying hole; The location of pipe laying absolute altitude: bar dowel head and the pipe laying symmetry welding that is not less than 6mm by 2 diameters is as block, and the pipe laying absolute altitude is the above pipe laying length in block bottom surface (promptly need reserve pipe laying and be held on the length that template is stretched out at place, pipe laying hole on the template after fixing through the bar dowel head); 4) treat that pipe laying centre of location line on the anchor on the fixing top of pipe laying is confirmed after, the bottom of pipe laying is penetrated in the pipe laying hole of template, the bar dowel head is shelved on the template, the adjustment pipe laying is positioned on the centre of location line, and bar dowel head and template welding are fixed.
The top of described pipe laying is fixed as with anchor: vertical pre-buried φ 48 lacks pin hand steel pipes at the foundation columns center when 1) constructing the foundation columns concrete; 2) the twice pay off rack is respectively established at around in base roof plate and middle part 1/3 and 2/3, and pay off rack is an angle steel, fixes with the 48 short pin hand steel pipe top of preembedded φ in the foundation columns; Each measured length of angle steel breaks off, and prevents that angle steel from influencing the medullary ray precision because of temperature deformation; Emit pipe laying centre of location line on the pay off rack; 3) lack pin hand steel pipes as upright supports with preembedded φ 48, establish three layers of level pipe in length and breadth altogether, constitute firm anchor; Three layers of level pipe are respectively from bottom to up: the first layer vertical equity pipe is formed basic framework with φ 48 short pin hand steel pipes, and totally five, five pipes will be on same horizontal plane; The first layer vertical equity pipe fixedly finishes, and launches jet pipe medullary ray and mark under each horizontally-arranged above that according to the medullary ray on the pay off rack, and fixed measure is as the single row of tubes medullary ray of second layer transverse horizontal pipe from about the mark line sidesway 100mm; With right-angle coupler second layer transverse horizontal pipe and the first layer vertical equity pipe are fixed; After second layer transverse horizontal pipe fixes; Launch each vertically medullary ray and mark of cleaning pipe according to the medullary ray on the pay off rack at it; Fixed measure is fixed the 3rd layer of vertical equity pipe and second layer transverse horizontal pipe with right-angle coupler as the medullary ray of the single row of tubes of the 3rd layer of vertical equity pipe from about the mark line sidesway 100mm; 4) the inspection anchor behind the phase interlocking jail, is attend the pipe laying medullary ray of institute's mark with inspect by instrument pay off rack and second layer transverse horizontal pipe, the 3rd layer of vertical equity pipe; 5) according to medullary ray, the pipe laying lower end to be inserted on the template bored in the hole, the upper end is individually fixed on second layer transverse horizontal pipe and the 3rd layer of vertical equity pipe with fastener.
Characteristics such as the invention has the beneficial effects as follows: compare with dress grouting behind the traditional pipe laying, it is high that the method for directly burring pipe laying has the pipe laying precision, saves time, saving of labor, material-saving, easy to operate.
Description of drawings
Fig. 1 is a coke oven base roof plate pipe laying permissible variation synoptic diagram;
Fig. 2 is the vertical view that φ 48 short pin hand steel pipes are buried underground;
Fig. 3 is the side-view that φ 48 short pin hand steel pipes are buried underground;
Fig. 4 is a pipe laying absolute altitude control synoptic diagram;
Fig. 5 is the pay off rack synoptic diagram
Fig. 6 is the sectional view of Fig. 5 along the A-A line;
Fig. 7 is the synoptic diagram of anchor;
Fig. 8 is a pipe laying mounting plane synoptic diagram;
Fig. 9 is a traditional method pipe laying synoptic diagram;
Among the figure: 1-border pipe laying centre of location line, 2-coke oven medullary ray, 3-pipe laying, 4-resistance wall, 5-side bar, 6-φ 48 short pin hand steel pipes; The 7-foundation columns, 8-base roof plate, 9-are pounded flat position, 10-Vierendeel girder, 11-sole plate; 12-bar dowel head, 13-template, 14-adjusting play, 15-angle steel, 16-construction joint; 17-the first layer vertical equity pipe, 18-second layer transverse horizontal pipe, the 3rd layer of vertical equity pipe of 19-, jet pipe under the 20-, 21-cleans pipe; The 22-angle steel, 23-channel-section steel, 24-shaped steel anchor, 25-corrugated tube, 26-high-strength grout.
Embodiment
Method of directly burring is installed the method for jet pipe under the coke oven base roof plate, adopts: the bottom of pipe laying 3 is fixing by template 13 borings, and the top of pipe laying 3 is fixed with anchor, once directly buries after-pouring base roof plate concrete underground; Said pipe laying 3 is for jet pipe 20, cleaning manage 21 down.
Method of directly burring is installed jet pipe and the method for cleaning pipe under the coke oven base roof plate, and its concrete steps are (shown in Fig. 1-8) as follows:
1) bury φ 48 short tubes underground:
Like Fig. 2, shown in Figure 3, vertical pre-buried φ 48 (unit is mm) lacks pin hand steel pipe 6 at foundation columns 7 centers during construction coke oven base post concrete, vertically totally 5 is listed as, and φ 48 short pin hand steel pipes 6 are used for fixing anchor and pay off rack; Require short steel pipes to imbed that concrete is no less than 150mm in the foundation columns 7, the top mark height is not less than the above 500mm of coke oven base roof plate concrete surface designed elevation; Because the reinforcing bar of the Vierendeel girder 10 of top board is dense, the φ 48 short pin hand steel pipes 6 at the reinforcing bar position of passing Vierendeel girder 10 are pounded flat (promptly pounding flat position 9);
2) coke oven base roof plate formwork erection:
Steel Pipe Scaffold support system (being flitch and scaffolding steel pipe) is adopted in the supporting of template 13, middle shop flitch; Shop, top wooden plywood's (>=10mm is thick); To measure one by one flitch upper strata absolute altitude before the template of shop, to guarantee the designed elevation and the planeness of template; According to pipe laying position adjustment flitch, avoid the pipe laying bore position simultaneously;
3) centre of location line in the pipe laying hole of pipe laying is inserted in measuring:
With coke oven control net is foundation, emits successively on template 13 that coke oven is vertical, horizontal medullary ray (as shown in Figure 1, promptly the coke oven medullary ray 2), limit coking chamber medullary ray; Carefully check medullary ray; Move border pipe laying centre of location line 1 (as shown in Figure 1) from the coke oven medullary ray to tape steel is disposable, then according to the center of each row pipe laying 3 divide, punctuate (centre of location line in the pipe laying hole of pipe laying 3 is inserted in measuring on template 13); In this process, must not arrange chi in proper order, in order to avoid progressive error is overproof; Behind the punctuate with fine rule line of ink marker snap the line on template; After snap the line finishes, check diagonal lines and check, guarantee that the snap the line position is accurate with instrument;
4) pipe laying location:
1. medullary ray is located:
As shown in Figure 4; Before the boring, in the point of crossing of the centre of location line in pipe laying hole, promptly the pipe laying central point dashes a pitting with tingle; Dashed good monumented point pitting with the drill bit of annular wood drill then; Vertically on template, get out fixedly the pipe laying hole of pipe laying (circular hole, aperture ratio pipe laying external diameter is bigger, promptly regulates gap 14; This hole is pipe laying end opening medullary ray fixed orifices);
2. absolute altitude is located:
With bar dowel head 12 location pipe laying absolute altitudes: the bottom of pipe laying 3 penetrates in the pipe laying hole of template 13, exposes size according to the design of the above pipe laying of concrete roof face and adds base roof plate 8 concrete thickness, in the pipe laying marked; The bar dowel head 12 that is not less than 6mm by 2 diameters and the welding of pipe laying symmetry be as block (being used to control the pipe laying absolute altitude), and the pipe laying absolute altitude is the above pipe laying length in block bottom surface (promptly need reserve pipe laying and be held on the length that template is stretched out at place, pipe laying hole on the template after fixing through bar dowel head 12);
5) base roof plate assembling reinforcement:
Check each pipe laying hole site and size, correct after, colligation Vierendeel girder and top board reinforcing bar; The upper and lower layer of top board reinforcing bar will get out of the way the pipe laying space according to the template bore position, and must support with split heads;
6) pay off rack and unwrapping wire are installed:
1. pay off rack is installed: like Fig. 5, shown in Figure 6, for the ease of measuring pipe laying control central line suitable for reading, in base roof plate, reach middle part 1/3 and 2/3 all around and respectively establish the twice pay off rack; Pay off rack is an angle steel 15, fixes with the top of the 48 short pin hand steel pipes 6 of preembedded φ in the foundation columns; Angle steel 15 wants each measured length to break off, and preventing influences the medullary ray precision because of its temperature deformation;
2. measuring pipe laying centre of location line: pipe laying centre of location line is the same with putting on the template 13, on pay off rack, emits pipe laying centre of location line, respectively with color triangle paint sign such as red, white;
7) anchor:
1. the composition of anchor: as shown in Figure 7; Anchor constitutes (being the first layer vertical equity pipe 17, second layer transverse horizontal pipe 18, the 3rd layer of vertical equity pipe 19) by the short pin hand of φ 48 steel pipes 6 (being the anchor column), one transverse horizontal steel pipe, twice vertical equity steel pipe; Totally three layers of horizontal steel tube all adopt φ 48 * 3.5 pin hand steel pipes;
The anchor column is preembedded φ 48 short pin hand steel pipes 6 during for the basic column of construction; With the anchor column is point of suppon, and level pipe constitutes firm anchor (the first layer vertical equity pipe 17, second layer transverse horizontal pipe 18, the 3rd layer of vertical equity pipe 19 respectively with the φ 48 short pin hand steel pipes 6 fixing anchors that form) in length and breadth;
Three layers of level pipe are respectively from bottom to up:
The first layer vertical equity pipe 17 is formed basic framework with φ 48 short pin hand steel pipes 6, and totally five, five pipes will be on same horizontal plane;
Second layer transverse horizontal pipe is used for fixing jet pipe down, and is adjacent with the first layer level pipe, requires straight;
Per three layers of vertical equity pipe are used for the securing cleaning pipe, and are adjacent with second layer level pipe, require straight;
Lock with right-angle coupler every layer of level pipe intersection;
2. the installation of anchor:
The first layer vertical equity pipe 17 fixedly finishes, and launches jet pipe medullary ray and mark under each horizontally-arranged above that according to the medullary ray on the pay off rack, and fixed measure is as the single row of tubes medullary ray of second layer transverse horizontal pipe 18 from about the mark line sidesway 100mm; With right-angle coupler that second layer transverse horizontal pipe 18 is fixing with the first layer vertical equity pipe 17;
After second layer transverse horizontal pipe 18 fixes; Launch each vertically medullary ray and mark of cleaning pipe according to the medullary ray on the pay off rack at it; Fixed measure is as the medullary ray of the single row of tubes of the 3rd layer of vertical equity pipe 19 from about the mark line sidesway 100mm, and is with right-angle coupler that the 3rd layer of vertical equity pipe 19 is fixing with second layer transverse horizontal pipe 18;
3. check anchor:
The inspection anchor behind the phase interlocking jail, is attend under institute's mark jet pipe and is cleaned the tube hub line with inspect by instrument pay off rack and second layer transverse horizontal pipe 18, the 3rd layer of vertical equity pipe 19;
8) pipe laying is installed:
As shown in Figure 8, according to medullary ray, pipe laying 3 lower ends to be inserted on the template bored in the hole, the upper end is individually fixed on second layer transverse horizontal pipe 18 and the 3rd layer of vertical equity pipe 19 with fastener;
9) pipe laying axis, absolute altitude inspection and adjustment:
Pipe laying carries out thorough examination after installing: hang up properly vertical, horizontal medullary ray according to pipe laying centre of location line on the pay off rack earlier during inspection;
According to hanging wire pipe laying axis and absolute altitude suitable for reading are checked one by one, if overproof promptly local adjustment is arranged;
10) cast concrete roof:
Concrete gets into jet pipe or cleaning pipe down when preventing to pour into a mould, and covers the mouth of pipe after can waste and old mineral water bottle being divided into two before the concrete depositing; With watering, not only convenient but also economical with moving;
Concrete depositing, note protecting pipe laying and anchor when vibrating;
Reexamine the axis and the absolute altitude of a pipe laying before the concrete initial set, the instant adjustment that pipe laying axis and absolute altitude are overproof; The concrete roof maintenance is the scaffold tubes and the pay off rack angle steel of dismountable anchor after 3 days; The neat concrete surface of concrete exposed parts of φ 48 short pin hand steel pipes cuts off the back and fills with pea gravel concreten.
Claims (1)
1. method of directly burring is installed jet pipe and the method for cleaning pipe under the coke oven base roof plate, it is characterized in that: the bottom of pipe laying (3) is fixing by template (13) boring, and the top of pipe laying (3) is fixed with anchor, and pipe laying (3) is once directly buried after-pouring base roof plate concrete underground; Said pipe laying (3) is for (21) are managed in jet pipe (20) and cleaning down;
The bottom of described pipe laying (3) is fixed as by template (13) boring:
1) adopts flitch and scaffolding steel pipe supporting template (13);
2) go up the centre of location line that the pipe laying hole of pipe laying (3) is inserted in measuring in template (13);
3) get out the pipe laying hole in the point of crossing of the centre of location line in pipe laying hole; The location of pipe laying absolute altitude: the bar dowel head (12) that is not less than 6mm by 2 diameters welds as block with the pipe laying symmetry, and the pipe laying absolute altitude is the above pipe laying length in block bottom surface;
4) treat that pipe laying centre of location line on the anchor on the fixing top of pipe laying (3) is confirmed after; The bottom of pipe laying (3) is penetrated in the pipe laying hole of template (13); Bar dowel head (12) is shelved on the template (13); Adjustment pipe laying (3) is positioned on the centre of location line, and bar dowel head (12) is fixing with template (13) welding;
The top of described pipe laying (3) is fixed as with anchor:
Vertical pre-buried φ 48 lacks pin hand steel pipes (6) at foundation columns (7) center when 1) constructing the foundation columns concrete;
2) the twice pay off rack is respectively established at around in base roof plate and middle part 1/3 and 2/3, and pay off rack is an angle steel, fixes with 48 short pin hand steel pipe (6) tops of preembedded φ in the foundation columns; Emit pipe laying centre of location line on the pay off rack;
3) lack pin hand steel pipes (6) as upright supports with preembedded φ 48, establish three layers of level pipe in length and breadth altogether, constitute firm anchor; Three layers of level pipe are respectively from bottom to up: the first layer vertical equity pipe (17) is formed basic framework with φ 48 short pin hand steel pipes (6), and totally five, five pipes will be on same horizontal plane; The first layer vertical equity pipe (17) fixedly finishes, and launches jet pipe medullary ray and mark under each horizontally-arranged above that according to the medullary ray on the pay off rack, from the single row of tubes medullary ray of mark line sidesway 100mm as second layer transverse horizontal pipe (18); With right-angle coupler that second layer transverse horizontal pipe (18) and the first layer vertical equity pipe (17) is fixing; After second layer transverse horizontal pipe (18) fixes; Launch each vertically medullary ray and mark of cleaning pipe according to the medullary ray on the pay off rack at it; From the medullary ray of mark line sidesway 100mm, the 3rd layer of vertical equity pipe (19) and second layer transverse horizontal pipe (18) is fixing with right-angle coupler as the single row of tubes of the 3rd layer of vertical equity pipe (19);
4) the inspection anchor behind the phase interlocking jail, is attend pipe laying (3) medullary ray of institute's mark with inspect by instrument pay off rack and second layer transverse horizontal pipe (18), the 3rd layer of vertical equity pipe (19);
5) according to medullary ray, with having bored in the hole on pipe laying (3) the lower end insertion template, the upper end is individually fixed on second layer transverse horizontal pipe (18) and the 3rd layer of vertical equity pipe (19) with fastener.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100481504A CN101294080B (en) | 2008-06-24 | 2008-06-24 | Method for mounting lower spray pipe, clearing tube of coke oven base roof plate with method of directly burring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100481504A CN101294080B (en) | 2008-06-24 | 2008-06-24 | Method for mounting lower spray pipe, clearing tube of coke oven base roof plate with method of directly burring |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101294080A CN101294080A (en) | 2008-10-29 |
| CN101294080B true CN101294080B (en) | 2012-01-25 |
Family
ID=40064622
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100481504A Expired - Fee Related CN101294080B (en) | 2008-06-24 | 2008-06-24 | Method for mounting lower spray pipe, clearing tube of coke oven base roof plate with method of directly burring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101294080B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101892672A (en) * | 2010-04-16 | 2010-11-24 | 天津二十冶建设有限公司 | Integral fixed installation method of embedded steel pipe on roof of coal furnace foundation |
| CN102703095B (en) * | 2012-06-08 | 2013-11-27 | 中国五冶集团有限公司 | Method for quickly installing gas pipeline of coke oven |
| CN104004529B (en) * | 2014-05-29 | 2015-12-09 | 中国五冶集团有限公司 | Coke oven flue elbow installation method |
| CN106753447A (en) * | 2015-11-25 | 2017-05-31 | 中冶天工集团有限公司 | A kind of coke roof pipe laying assembly type fixed mount and its assemble method |
| CN110331863A (en) * | 2019-06-06 | 2019-10-15 | 中国五冶集团有限公司 | The guard method of lower jet pipe during coke oven basic top plate construction |
| CN110184077A (en) * | 2019-06-21 | 2019-08-30 | 中国五冶集团有限公司 | It is a kind of to make Coke oven lower spray pipe, cleaning construction method and its structure that pipe is precisely installed |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3167883A (en) * | 1962-07-10 | 1965-02-02 | Otto Construction Corp | Oven construction |
| CN2034580U (en) * | 1988-05-05 | 1989-03-22 | 冶金工业部第十八冶金建设公司 | Correction device for jet pipe sleeve pattern of pre-buried coke oven |
| CN2207388Y (en) * | 1994-07-22 | 1995-09-13 | 里景民 | Coke furnace basic crown plate pipe flush mounting apparatus |
-
2008
- 2008-06-24 CN CN2008100481504A patent/CN101294080B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3167883A (en) * | 1962-07-10 | 1965-02-02 | Otto Construction Corp | Oven construction |
| CN2034580U (en) * | 1988-05-05 | 1989-03-22 | 冶金工业部第十八冶金建设公司 | Correction device for jet pipe sleeve pattern of pre-buried coke oven |
| CN2207388Y (en) * | 1994-07-22 | 1995-09-13 | 里景民 | Coke furnace basic crown plate pipe flush mounting apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101294080A (en) | 2008-10-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101294080B (en) | Method for mounting lower spray pipe, clearing tube of coke oven base roof plate with method of directly burring | |
| CN105040970A (en) | Comprehensive gymnasium high formwork support system and construction method of comprehensive gymnasium high formwork support system | |
| CN103410332A (en) | Concrete hollow block reinforced wall construction technology | |
| CN107620386A (en) | The installation constitution and construction method of shock isolating pedestal in existing building base isolation reinforcement | |
| CN109750829A (en) | The construction method that the unit-combination type support system of deformation monitoring automation is early torn open | |
| CN106120835B (en) | A kind of circle concrete structures toe board panel guide rail and its levelling construction | |
| CN106013206B (en) | Steel pipe column positioning device, steel core concrete column and pile foundation attachment structure | |
| CN103387836A (en) | Method for mounting coke oven roof buried pipe | |
| CN207362866U (en) | A kind of bolt collar fixed structure | |
| CN205894490U (en) | Steel core concrete column and pile foundation connection structure | |
| CN105804110A (en) | Construction method of foundation bolts of railway contact net and mounting bracket | |
| CN106759943A (en) | A kind of pre-assembled Anchor Bolts in Steel Column Bases structure | |
| CN207332350U (en) | The installation constitution of shock isolating pedestal in existing building base isolation reinforcement | |
| CN102966254A (en) | Measuring tower used for construction of stub matching method and arrangement thereof | |
| CN111549815A (en) | Steel structure foundation bolt pre-embedding construction method | |
| KR200370107Y1 (en) | Forms for edge girder construction | |
| CN107586068B (en) | Upright column concrete and construction method of concrete upright column | |
| CN206428716U (en) | A kind of circular concrete structures toe board panel guide rail | |
| CN213979025U (en) | Steel column rag bolt is pre-buried installs fixing device | |
| CN111636691A (en) | Modularized recyclable prefabricated inner wall dowel positioning system and construction method using same | |
| CN107401179B (en) | Method for installing pre-buried bolts of paper machine girder in paper making workshop | |
| CN205804392U (en) | Steel pipe column positioner | |
| CN110453726A (en) | A kind of constructing device that overlength reinforced concrete floor is levelling and method | |
| JP4516235B2 (en) | Construction members and construction methods for floating structures | |
| CN205242267U (en) | Hollow thin wall rectangle dun dun pushes up construction structures |
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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120125 Termination date: 20200624 |