CN100376835C - Shock-resistant culvert pipe with large section and circumferential stress and preparation process thereof - Google Patents
Shock-resistant culvert pipe with large section and circumferential stress and preparation process thereof Download PDFInfo
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- CN100376835C CN100376835C CNB2005100124293A CN200510012429A CN100376835C CN 100376835 C CN100376835 C CN 100376835C CN B2005100124293 A CNB2005100124293 A CN B2005100124293A CN 200510012429 A CN200510012429 A CN 200510012429A CN 100376835 C CN100376835 C CN 100376835C
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Abstract
The present invention relates to a large-section round stress shock-resistant culvert pipe. A cylindrical frame of the present invention is composed of a frame in the inner layer, a frame in the middle layer and a frame in the outer layer, wherein diagonal right barrel pipes and diagonal left barrel pipes which are crossed slantwise to an axle wire of the frames are respectively and uniformly fixed on the frame in the inner layer and the frame in the middle layer. Steel strands which can generate prestressing by stretched are penetrated in the cylinder pipes. An annular barrel pipe is arranged on the frame in the outer layer. Both ends of the annular barrel pipe are anchored through an anchor device arranged on the inner wall of a culvert pipe body. The inner wall of the culvert pipe body is provided with an auxiliary-drawing anchor connected with the steel strand in the annular barrel pipe. The present invention is suitable for structure engineering of a large underground water transfer culvert excavated by a large shield machine in regions with frequent earthquakes, subway engineering, majority path engineering of river span, and exclusive use pipelines which need to be deeply buried for long distance large diversion work.
Description
Technical field
The present invention relates to a kind of shock-resistant culvert pipe with large section and circumferential stress and preparation process thereof.
Technical background
The conventional construction technology of at present domestic traditional large tunnel has two kinds, and a kind of is subway engineering with large-scale shield machine construction, and another kind is to dig the tunnelling works of constructing with manpower.The internal structure of subway engineering is to be combined into cylindrical body with prefabricated pipe section, and after injecting a large amount of concrete with the high pressure mortar pump in crack, treating concrete setting, the support inner formword is built the cylinder type concrete body.Construction technology by the large tunnel of artificial cutting is more simple, reinforces lining with cement slurry toward culvert inwall spray one deck earlier, at support inner formword concreting structure.More than two kinds of traditional routine techniques because simple in structure, the poor performance of pressure-bearing, antidetonation, cracking resistance, in order to reach designing requirement, strengthened the engineering work load of earthwork evacuation, spent raw material are many especially, and engineering cost is high especially, efficiency of construction is low especially, also, cause a lot of adverse effects, so the duration of construction is long especially to site operation because of transport volume is big.Because objectively, the internal diameter of large-scale long distance surpasses 4 meters waterline, does not also have case history at home." south water to north " engineering has the seismic region, many places, wants to satisfy the needs of modern diversion works, increases structural strength, economizes on resources, and reduces engineering cost, and research large-section antidetonation culvert pipe is very necessary, also is very timely.
Summary of the invention
Technical problem to be solved by this invention provides and a kind ofly can effectively improve shock-resistant culvert pipe with large section and circumferential stress counter-bending, the resist displacement performance.
The present invention adopts following technological scheme:
The present invention includes the concrete culvert pipe with great body and be arranged on the interior cylinder frame of culvert pipe body by vertical muscle and the making of ring muscle, it is characterized in that described cylinder frame is by the nexine skeleton, middle level skeleton and outer skeleton constitute, on nexine skeleton and middle level skeleton, evenly be fixed with respectively with the skeleton medial axis and be right tiltedly bobbin and the left tiltedly bobbin that diagonal cross is provided with, in bobbin, be installed with through stretch-draw and produce prestressed steel strand, outer skeleton is provided with the hoop bobbin, two ends are by being arranged on the ground tackle anchoring on the culvert pipe body inwall, and culvert pipe body inwall is provided with helping of being connected with steel strand in the hoop bobbin and draws ground tackle, is provided with the rubber and plastic separation layer and draws ground tackle and hoop steel strand joint to be provided with the fixedly snap close of steel strand helping between culvert pipe inwall and concrete outer lining.
In the present invention's hoop bobbin around the home the steel strand in one week of culvert pipe body be provided with one or more helping and draw ground tackle.
The present invention draws ground tackle to be connected with steel strand in being arranged on the hoop bobbin by snap close helping.
Be provided with in vertical attachment hole of the present invention on the nexine skeleton and can carry out the steel strand that continuously vertically stretch-draw can be together in series the pipeline of the 5-7 rice of vertical making.
Pre-stressed longitudinal reinforced in vertical attachment hole that the present invention is provided with in the culvert pipe body can connect into the pipeline section of section construction the overlength culvert pipe body that reaches 30-150 rice.
Overlength culvert pipe body of the present invention can be after utilizing the culvert inner-wall spraying or paste the rubber and plastic separation layer in culvert, by the technological process construction and connect into overlength culvert pipe body.
The present invention also can be in the ditch that excavate in the Plain, utilizes fixedly the arc pipe base or utilizes the adjustable pipe base behind the support outer moulding board, constructs by technological process, and connects into overlength culvert pipe body.
The present invention also uses vertical construction process, in the lifting displacement, connects into overlength culvert pipe body with longitudinal prestressing then.
Rubber seal is used in the pipeline butt joint that segmentation of the present invention connects, and the expansion joint seals with rubber fastening band.
Shock-resistant culvert pipe with large section and circumferential stress of the present invention and preparation process thereof adopt the following step:
The making of first step concrete outer lining: behind shield machine or the good culvert body of hand excavation, the net sheet with φ 6-φ 10 reinforcement fabrications is fixed on the culvert pipe outer wall, the good cylinder type combination of support outer moulding board is built crack concrete outer lining.
Second step was removed the combination outer moulding board: after treating the outer lining concrete setting, remove the combination outer moulding board, and forward impelling in order, connect next pipeline section of construction.
The making of the 3rd step rubber and plastic separation layer: make the rubber and plastic separation layer with high-elastic, high pressure resistant, ageing-resistant rubber and plastic composite utilization spraying or the technology of pasting.
The making of the 4th step cylinder type skeleton, per 10 meters is a pipeline section, makes the outer skeleton of cylinder type, middle level skeleton, nexine skeleton respectively, and links into an integrated entity with reinforcing bar radially.
The 5th goes on foot the making of reinforcing the stretch-draw band: also have the reinforcing bar of using increasing between the nexine skeleton at outer skeleton and middle level skeleton, be distributed in wide 1-2 rice position, culvert pipe body top reinforcing stretch-draw band is set, form " keel structure body ".
The making of the 6th step hoop bobbin: in the nexine of outer skeleton or outside distribution rings to bobbin, intersect at culvert pipe body internal upper part " reinforcing stretch-draw band " both sides mutually and lead to the inwall upper left side of culvert pipe body, upper right ground tackle preformed hole, and below installing in the left side, top in a below or the left side in the right side, helping of top drawn ground tackle in the right side.
The making of bidirectional crossed oblique bobbin of the 7th step: in the both sides of middle level skeleton or the outside the distribute oblique bobbin in a bidirectional crossed left side, right tiltedly bobbin, put on steel strand in the pipe, install fixedly ground tackle and tension ground tackle.
The installation of the 8th step inner formword: determine that according to culvert pipe body internal diameter size inner formword also connects together end face template and inner formword.
The 9th step was built the body concrete: use the high pressure mortar pump toward the interior concreting of template, and smash moulding by the technological requirement shake.
The tenth step priming by vacuum, pressurization sealing off and covering anchorage: all bobbin segmentations are evacuated, inject the high-grade cement slurry that adds dilatant, accelerator with high-pressure service pump respectively, and add the flat anchor hole of reserving of press seal with the special cement slurry.
The connection of the 11 step prestress wire: connect oblique, vertical steel strand with connector, use the sleeve connection lengthwise rib, repeat above-mentioned steps and make second pipeline section and other pipeline section.
The making at the 13 step culvert pipe end of body expansion joint: when the body that constitutes continuously when pipeline section reaches design length, an end of rubber fastening band is built end in another pipeline section, repeat to make some culvert pipe bodies like this and formed waterline.
Good effect of the present invention is as follows: the present invention in outer skeleton inboard or arranged outside the hoop bobbin is arranged, hoop bobbin two ends are by being arranged in the culvert pipe body inwall ground tackle anchoring of top, and below in culvert pipe body inwall or in above be provided with helping of being connected with steel strand in the hoop bobbin and draw ground tackle.The present invention adopts the new process of step stretch-draw, makes body hoop more reasonable stress.Also, improved the ability of antidetonation, counter-bending, resist displacement because the diagonal cross prestressed tendon that adopted suitable body to arrange at middle level skeleton and nexine skeleton makes overall structure form circumferential stress, thereby strengthened the performance of body top " keel structure ".
The present invention can be used for " south water to north " super-huge diversion works that China builds in multiple seismic region, can also satisfy large-scale needs of striding the rivers major path, also can satisfy the needs that the earthquake-prone region construction is worn the mountain water-conveyance culvert or pipe and dug mountain tunnel.
The present invention is applicable to the culvert pipe engineering of multiple seismic region with the long distance of large-scale underground water delivery of large-scale shield machine excavation, and subway engineering, also is applicable to and strides rivers major path engineering.Can also be used for " south water to north " engineering flat land head of district apart from dedicated pipeline.
Description of drawings
Accompanying drawing 1 is structural representation of the present invention
Accompanying drawing 2 is that accompanying drawing 1A-A of the present invention is to cross section view
Accompanying drawing 3 is the B portion enlarged view of accompanying drawing 1 of the present invention
Accompanying drawing 4 is the D portion enlarged view of accompanying drawing 2 of the present invention
Accompanying drawing 5 is culvert pipe body connection diagram of the present invention
Accompanying drawing 6 is the C portion enlarged view of accompanying drawing 5 of the present invention
Accompanying drawing 7 is a hoop bobbin of the present invention form schematic representation around the home
Accompanying drawing 8 draws ground tackle and steel strand connection diagram for the present invention helps
In the accompanying drawings: 1, culvert pipe body, 2 outer skeletons, 3 ring muscle, 4 middle level skeletons, 5 vertical muscle, 6 ring muscle, the oblique bobbin in 7 left sides, 8 nexine skeletons, 9, right tiltedly bobbin, 10 vertical attachment holes, 11 ring muscle, 12 vertical muscle, 13 ground tackles, 14 steel strand, 15 are indulged muscle, 16 hoop bobbins, 17 help and draw ground tackle, 18 construction joints, 19 rubber fastening bands, 20 rubber and plastic separation layers, 21 culvert outer walls, 22 culvert pipe expansion joints, 23 concrete outer linings, 24 rock stratum, 25 snap closes.
Embodiment
As shown in drawings, the present invention includes concrete culvert pipe with great body 1 and be arranged on the cylinder frame of making by vertical muscle and ring muscle in the culvert pipe body 1, it is characterized in that described cylinder frame is by nexine skeleton 8, middle level skeleton 4 and outer skeleton 2 constitute, on nexine skeleton 8 and middle level skeleton 4, evenly be fixed with respectively with the skeleton medial axis and be right tiltedly bobbin 9 and the left tiltedly bobbin 7 that diagonal cross is provided with, in bobbin, be installed with through stretch-draw and produce prestressed steel strand, outer skeleton 2 is provided with hoop bobbin 16, two ends are by being arranged on ground tackle 13 anchorings on culvert pipe body 1 inwall, and culvert pipe body 1 inwall is provided with helping of being connected with steel strand in the hoop bobbin 16 and draws ground tackle 17, is provided with rubber and plastic separation layer 20 and draws ground tackle 17 and hoop steel strand 14 joints to be provided with the fixedly snap close 25 of steel strand 14 helping between culvert pipe outer wall 21 and concrete outer lining 23.
In the present invention's hoop bobbin 16 around the home the steel strand 14 in one week of culvert pipe body be provided with one or more helping and draw ground tackle 17.
The present invention draws ground tackle 17 to be connected with steel strand 14 in being arranged on hoop bobbin 16 by snap close 25 helping.
Be provided with in vertical attachment hole 10 of the present invention on nexine skeleton 8 and can carry out the steel strand that continuously vertically stretch-draw can be together in series the pipeline of the 5-7 rice of vertical making.
Pre-stressed longitudinal reinforced in vertical attachment hole 10 that the present invention is provided with in culvert pipe body 1 can connect into the pipeline section of section construction the overlength culvert pipe body 1 that reaches 30-150 rice.
Overlength culvert pipe body 1 of the present invention can be after utilizing the culvert inner-wall spraying or paste the rubber and plastic separation layer in culvert, by the technological process construction and connect into overlength culvert pipe body 1.
The present invention also can be in the ditch that excavate in the Plain, utilizes fixedly the arc pipe base or utilizes the adjustable pipe base behind the support outer moulding board, constructs by technological process, and connects into overlength culvert pipe body 1.
The present invention also uses vertical construction process, in the lifting displacement, connects into overlength culvert pipe body 1 with longitudinal prestressing then.
The pipeline butt joint rubber seal that segmentation of the present invention connects, the expansion joint seals with rubber fastening band 19.
The preparation process of shock-resistant culvert pipe with large section and circumferential stress of the present invention adopts the following step:
The making of first step concrete outer lining 23: behind shield machine or the good culvert body of hand excavation, the net sheet with φ 6-φ 10 reinforcement fabrications is fixed on the culvert pipe outer wall 21, the good cylinder type combination of support outer moulding board is built crack concrete outer lining 23.
Second step was removed the combination outer moulding board: after treating that outer lining concrete 23 solidifies, remove the combination outer moulding board, and forward impelling in order, connect next pipeline section of construction.
The making of the 3rd step rubber and plastic separation layer 20: make rubber and plastic separation layer 20 with high-elastic, high pressure resistant, ageing-resistant rubber and plastic composite utilization spraying or the technology of pasting.
The making of the 4th step cylinder type skeleton, per 10 meters is a pipeline section, makes the outer skeleton 2 of cylinder type, middle level skeleton 4, nexine skeleton 8 respectively, and links into an integrated entity with reinforcing bar radially.
The 5th goes on foot the making of reinforcing the stretch-draw band: also have the reinforcing bar of using increasing between the nexine skeleton 8 at outer skeleton 2 and middle level skeleton 4, be distributed in wide 1-2 rice position, culvert pipe body 1 top reinforcing stretch-draw band is set, form " keel structure body ".
The making of the 6th step hoop bobbin: in the nexine of outer skeleton or outside distribution rings to bobbin, intersect at culvert pipe body 1 internal upper part " reinforcing stretch-draw band " both sides mutually and lead to the inwall upper left side of culvert pipe body 1, upper right ground tackle 13 preformed holes, and below installing in the left side, top in a below or the left side in the right side, helping of top drawn ground tackle 17 in the right side.
The making of bidirectional crossed oblique bobbin of the 7th step: in the both sides of middle level skeleton 4 or the outside the distribute oblique bobbin 7 in a bidirectional crossed left side, right tiltedly bobbin 8, put on steel strand 14 in the pipe, install fixedly ground tackle and tension ground tackle 13.
The installation of the 8th step inner formword: determine that according to culvert pipe body 1 internal diameter size inner formword also connects together end face template and inner formword.
The 9th step was built the body concrete: use the high pressure mortar pump toward the interior concreting of template, and smash moulding by the technological requirement shake.
The tenth step priming by vacuum, pressurization sealing off and covering anchorage: all bobbin segmentations are evacuated, inject the high-grade cement slurry that adds dilatant, accelerator with high-pressure service pump respectively, and add the flat anchor hole of reserving of press seal with the special cement slurry.
The connection of the 11 step prestress wire 14: connect oblique, vertical steel strand 14 with connector,, repeat above-mentioned steps and make second pipeline section and other pipeline section with sleeve connection lengthwise rib 5,12,15.
The making at the 13 step expansion joint, culvert pipe body 1 end 22: when the body that constitutes continuously when pipeline section reaches design length, an end of rubber fastening band 19 is built end in another pipeline section, repeat to make some culvert pipe bodies 1 like this and formed waterline.
Technical problem to be solved by this invention provides the new mode of a kind of employing " hoop reticular structure ", utilize the hoop corresponded manner in body in above the position intersect stretch-draw mutually, middle upper part position in stretch-draw, be provided with in the culvert pipe body 1 and reinforce the stretch-draw band ", make it to form " keel structure body ".Can effectively assemble circumferential stress at double, offset because body bears the tensile stress that inside and outside load produces.Also the position is provided with above culvert pipe body 1 inwall owing to having adopted " reinforcing the stretch-draw band ", make the overlength body increase anti-high pressure, resist displacement, resistant to bending ability, improved the performance of antidetonation, can guarantee to move normally at the waterline of multiple seismic region construction.
The present invention also has characteristics, can segmentation construct continuously, can also be with the pipeline of the long 5-7 rice of vertical explained hereafter, can adopt horizontal technology in the good ditch of excavation, to beat bed course in the plains region, make metal adjustable pipe platform, make the back lifting displacement that finishes, utilize longitudinal prestressing steel strand 17 to be cascaded, form overlength culvert pipe body 1, press design length, make the expansion joint with rubber fastening band 19 sealings.
The present invention has reduced engineering work load owing to adopt new structure, new technology, new process, has saved resource, reduce engineering cost, improved engineering efficient, shortened the duration, also change form of construction work simultaneously, improved execution conditions, reached the level of mechanized construction basically.
Method of construction is as follows:
1, with behind shield machine or the good culvert of hand excavation, the cylinder type combination outer moulding board of support typing, external application φ 6-φ 10 reinforcement fabrication net sheets are fixed on and use the high pressure mortar pump toward the crack concrete perfusion on the culvert wall, form cylinder type outer lining 23.
2, treat that outer lining solidifies the back and removes the tube outer moulding board,, build the hypomere outer lining in continuous forward impelling.
3, making is formed the cylinder type skeleton by ring muscle 3 and vertical muscle 5, is made of for three layers nexine skeleton 8, middle level skeleton 4, outer skeleton.
4, the middle upper part position that is distributed in culvert pipe body 1 in the outside or the inboard of outer skeleton.Cross one another round bobbin 16, and in pipe, penetrate through stretch-draw and produce prestressed steel strand 14.
5, distributing bobbin and in oblique bobbin, 7 penetrate through stretch-draw and produce prestressed steel streakline 14 on the cylinder type skeleton.
6, concreting, moulding is smash in shake, treats that concrete strength reaches 70% inner formword of dismantling when above.
7, install to help and draw ground tackle, tension ground tackle is finished stretch-draw in order.
8, with vacuum pump the air segmenting in the bobbin is evacuated, with high-pressure service pump the high-grade cement slurry of being furnished with the dilatant accelerator is irritated in bobbin more respectively, then flat helping pulling eye and anchor hole to add press seal with the special cement slurry.
9, in order after carrying out next pipeline section, reaching design length, with rubber fastening band 19 sealings, making expansion joint (pipeline section internal diameter 5-10 rice).
10, the long body of 8-10 rice can be used horizontal technology, and section construction also can earlier prefabricated fixedly arc base, directly connects construction on base.The pipeline section of 5-7 rice also can be used movable base, sectional making, and lifting displacement then is mounted to overlength culvert pipe body 1.
11, the pipeline section of 5-7 rice internal diameter can be used vertical explained hereafter.The support inner formword is made skeleton back poppet template in order, built concrete after, remove earlier inner formword and carry out inwall stretch-draw.The back lifting displacement that finishes is mounted to overlength culvert pipe body 1.
12, steel strand of the present invention, also can adopt in the external wall stretch-draw of culvert pipe during the slot grooving of Plain all in the stretch-draw of culvert pipe body inwall.
13, use the prestressing force interconnection technique, the pipeline section interface seals with rubber fastening band 19 with rubber seal ring counterpart sealing, culvert pipe body 1 expansion joint.
As shown in drawings, per 10 meters one construction pipeline section, every 30-150 rice designs the expansion joint one.This skeleton with φ 25-φ 36 reinforcing bars, is indulged muscle φ 22-φ 25 reinforcing bars with the ring muscle.Reinforcing bar connects with special sleeve, and steel strand connect with connector, helps to draw and uses pull aid control stretch-draw.
The present invention also can have the prestressing force of reservation to connect the hole at the culvert pipe body with the pipeline of vertical explained hereafter 5-7 rice internal diameter, also is reserved with the groove with seal ring seal, the length 5-10 rice of body, thickness 20-50cm.
Claims (10)
1. shock-resistant culvert pipe with large section and circumferential stress, comprise concrete culvert pipe with great body (1) and be arranged on the interior cylinder frame of culvert pipe body (1) by vertical muscle and the making of ring muscle, it is characterized in that described cylinder frame is by nexine skeleton (8), middle level skeleton (4) and outer skeleton (2) constitute, on nexine skeleton (8) and middle level skeleton (4), evenly be fixed with respectively with the skeleton medial axis and be the oblique bobbin (7) of a right tiltedly bobbin (9) and a left side that diagonal cross is provided with, in bobbin, be installed with through stretch-draw and produce prestressed steel strand, outer skeleton (2) is provided with hoop bobbin (16), right tiltedly bobbin (9), steel strand two ends in oblique bobbin (7) in a left side and the hoop bobbin (16) are by being arranged on ground tackle (13) anchoring on culvert pipe body (1) inwall, and culvert pipe body (1) inwall is provided with helping of being connected with the interior steel strand of hoop bobbin (16) and draws ground tackle (17), between culvert pipe outer wall (21) and concrete outer lining (23), be provided with rubber and plastic separation layer (20), draw ground tackle (17) and hoop steel strand (14) joint to be provided with the fixedly snap close (25) of steel strand (14) helping.
2. a kind of shock-resistant culvert pipe with large section and circumferential stress according to claim 1 is characterized in that in the hoop bobbin (16) that the steel strand (14) in one week of culvert pipe body are provided with one or more helping around the home and draws ground tackle (17).
3. a kind of shock-resistant culvert pipe with large section and circumferential stress according to claim 1 and 2 is characterized in that drawing ground tackle (17) to be connected with steel strand (14) in being arranged on hoop bobbin (16) by snap close (25) helping.
4. a kind of shock-resistant culvert pipe with large section and circumferential stress according to claim 1 and 2 is characterized in that being provided with in the vertical attachment hole (10) on nexine skeleton (8) and can carry out the steel strand that continuously vertically stretch-draw can be together in series the pipeline of the 5-7 rice of vertical making.
5. a kind of shock-resistant culvert pipe with large section and circumferential stress according to claim 1 and 2, pre-stressed longitudinal reinforced in the vertical attachment hole (10) that it is characterized in that in culvert pipe body (1) being provided with can connect into the pipeline section of section construction the overlength culvert pipe body (1) that reaches 30-150 rice.
6. a kind of shock-resistant culvert pipe with large section and circumferential stress according to claim 5, it is characterized in that described overlength culvert pipe body (1) is after utilizing the culvert inner-wall spraying or paste the rubber and plastic separation layer in culvert, by the technological process construction and connect into overlength culvert pipe body (1).
7. a kind of shock-resistant culvert pipe with large section and circumferential stress according to claim 5 is in the ditch that excavate in the Plain, utilizes fixedly the arc pipe base or utilizes the adjustable pipe base behind the support outer moulding board, constructs by technological process, and connects into overlength culvert pipe body (1).
8. a kind of according to claim 1 or 5 shock-resistant culvert pipe with large section and circumferential stress is characterized in that it being to use vertical construction process, and then the lifting displacement, connects into overlength culvert pipe body (1) with longitudinal prestressing.
9. a kind of shock-resistant culvert pipe with large section and circumferential stress according to claim 1 and 2 is characterized in that the pipeline butt joint rubber seal that segmentation connects, and the expansion joint seals with rubber fastening band (19).
10. the preparation process of a shock-resistant culvert pipe with large section and circumferential stress is characterized in that comprising the following steps:
The making of first step concrete outer lining (23): behind shield machine or the good culvert body of hand excavation, the net sheet with φ 6-φ 10 reinforcement fabrications is fixed on the culvert pipe outer wall (21), the good cylinder type combination of support outer moulding board is built crack concrete outer lining (23);
Second step was removed the combination outer moulding board: after treating that outer lining concrete (23) solidifies, remove the combination outer moulding board, and forward impelling in order, connect next pipeline section of construction;
The making of the 3rd step rubber and plastic separation layer (20): make rubber and plastic separation layer (20) with high-elastic, high pressure resistant, ageing-resistant rubber and plastic composite utilization spraying or the technology of pasting;
The making of the 4th step cylinder type skeleton, per 10 meters is a pipeline section, makes the outer skeleton (2) of cylinder type, middle level skeleton (4), nexine skeleton (8) respectively, and links into an integrated entity with reinforcing bar radially;
The making of the 5th step reinforcing stretch-draw band: also have the reinforcing bar of using increasing between the nexine skeleton (8) at outer skeleton (2) and middle level skeleton (4), be distributed in wide 1-2 rice position, culvert pipe body (1) top reinforcing stretch-draw band is set, form " keel structure body ";
The making of the 6th step hoop bobbin: in the nexine of outer skeleton or outside distribution rings to bobbin, inwall upper left side, upper right ground tackle (13) preformed hole of culvert pipe body (1) are led in both sides, and helping below below installing in the left side, in the right side or above above in the left side, in the right side drawn ground tackle (17) to intersect at culvert pipe body (1) internal upper part " reinforcing stretch-draw band " mutually;
The making of bidirectional crossed oblique bobbin of the 7th step: in the both sides of middle level skeleton (4) or the outside the distribute oblique bobbin in a bidirectional crossed left side (7), right tiltedly bobbin (8), put on steel strand (14) in the pipe, install fixedly ground tackle and tension ground tackle (13);
The installation of the 8th step inner formword: determine that according to culvert pipe body (1) internal diameter size inner formword also connects together end face template and inner formword;
The 9th step was built the body concrete: use the high pressure mortar pump toward the interior concreting of template, and smash moulding by the technological requirement shake;
The tenth step priming by vacuum, pressurization sealing off and covering anchorage: all bobbin segmentations are evacuated, inject the high-grade cement slurry that adds dilatant, accelerator with high-pressure service pump respectively, and add the flat anchor hole of reserving of press seal with the special cement slurry;
The connection of the 11 step prestress wire (14): connect oblique, vertical steel strand (14) with connector,, repeat above-mentioned steps and make second pipeline section and other pipeline section with sleeve connection lengthwise rib (5,12,15);
The making at the 13 step culvert pipe body (1) expansion joint, end (22): when the continuous body that constitutes of pipeline section reaches design length, one end of rubber fastening band (19) is built end in another pipeline section, repeat to make some culvert pipe bodies (1) like this and formed waterline.
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| CNB2005100124293A CN100376835C (en) | 2005-03-25 | 2005-03-25 | Shock-resistant culvert pipe with large section and circumferential stress and preparation process thereof |
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| CNB2005100124293A CN100376835C (en) | 2005-03-25 | 2005-03-25 | Shock-resistant culvert pipe with large section and circumferential stress and preparation process thereof |
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| CN1837666A CN1837666A (en) | 2006-09-27 |
| CN100376835C true CN100376835C (en) | 2008-03-26 |
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| CN106761833A (en) * | 2017-01-11 | 2017-05-31 | 中铁隧道勘测设计院有限公司 | A kind of antidetonation tunnel structure with rubber blanket |
| CN108119163A (en) * | 2018-01-31 | 2018-06-05 | 中交公路长大桥建设国家工程研究中心有限公司 | For the assembled secondary liner structure of drill+blast tunnel and composite lining structure |
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| CN2787965Y (en) * | 2005-03-25 | 2006-06-14 | 衡水长江预应力有限公司 | Large-section round stress shock-resistant culvert pipe |
-
2005
- 2005-03-25 CN CNB2005100124293A patent/CN100376835C/en not_active Expired - Fee Related
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US3758940A (en) * | 1963-11-25 | 1973-09-18 | Segans | Method of producing composite concrete - steel pipes and joints and pipe and joint obtained by means of said method |
| DE2349814A1 (en) * | 1973-10-04 | 1975-04-24 | Joe E Long | Lined concrete pipe prodn. in ditch - on inflated core sheathed with plastics or rubber lining foil |
| JPS55140883U (en) * | 1979-03-30 | 1980-10-08 | ||
| CN1271643A (en) * | 2000-02-22 | 2000-11-01 | 冯大斌 | Prestressed concrete culvert pipe with great cross-section and its making method |
| CN1380171A (en) * | 2001-04-13 | 2002-11-20 | 衡水泰昌预应力有限公司 | Large-aperture prestressed concrete pipe and its preparation process |
| CN1463841A (en) * | 2002-06-03 | 2003-12-31 | 长春市泰发实业（集团）有限责任公司 | Two stage non-binding prestressed pressure tube and method for making same |
| CN1587773A (en) * | 2004-08-31 | 2005-03-02 | 广东鑫林管道有限公司 | Secondary stage prestress concrete water transport pipe and producing method |
| CN2787965Y (en) * | 2005-03-25 | 2006-06-14 | 衡水长江预应力有限公司 | Large-section round stress shock-resistant culvert pipe |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1837666A (en) | 2006-09-27 |
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