CN109736348A - The precast section of prefabricated assembled piping lane and the transition processing method of Cast-in-Situ Segment - Google Patents
The precast section of prefabricated assembled piping lane and the transition processing method of Cast-in-Situ Segment Download PDFInfo
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Abstract
The present invention relates to municipal works field, the precast section of specifically a kind of prefabricated assembled piping lane and the transition processing method of Cast-in-Situ Segment；It is characterized in that: when prefabricated and cast-in-place section construction transition region is located at deformation joint and lays in range section transition conversion can be carried out with cast-in-place transition interface setting deformation joint to prefabricated, and disclose a kind of construction method that deformation joint end head formwork installs；When it is prefabricated with cast-in-place section construction transition region not when deformation joint is laid in range, precast section reserve the construction of overlap joint reinforcing bar and with subsequent quasi- construction Cast-in-Situ Segment main body it is whole establish connection.The present invention is based on live different operating conditions quickly to pick out the reasonable construction mode taken to piping lane precast section and Cast-in-Situ Segment transition processing, and construction quality is easily guaranteed that, can play reference, reference role for the promotion of design and construction level corresponding in industry.
Description
Technical field
The present invention relates to municipal works field, the precast section of specifically a kind of prefabricated assembled piping lane and the transition of Cast-in-Situ Segment
Processing method.
Background technique
Pipe gallery construction technology is subordinated to foundation and underground space field of engineering technology, also belongs to construction industry ten
New technology ranks scope, because its ratio is in the conventionally employed construction method laid the line, it, which has, avoids maintenance underground utilities frequency
Numerous excavation road and traffic and resident trip are impacted and are interfered, keep the appearance of a street completely and it is beautiful, to reduce road surface multiple
The maintenance cost of the expense and utilities pipeline overhauled, the durability of the integrality for maintaining road surface and all kinds of pipelines, effective use
Space under road, has saved many merits such as urban land, and currently vigorously advocating by country and government department, domestic
The upsurge of piping lane construction is started.However, currently in the especially prefabricated overlapping assembled piping lane of pipe gallery construction field
Construction can be still in the mature engineering method technique and construction experience of foundation for reference gropes to accumulate precipitate phase, and prefabricated piping lane is outstanding
It is still to belong to the starting stage at home with the application of prefabricated overlapping piping lane construction technology, and relevant codes and standards are not yet complete, apply
Work experience also accumulates deficiency, proposes huge challenge to practical engineering project practice.
Summary of the invention
The object of the present invention is to provide the methods of a kind of piping lane precast section and Cast-in-Situ Segment transition processing.
In order to achieve the above object, the present invention is implemented as follows:
A kind of precast section of prefabricated assembled piping lane and the transition processing method of Cast-in-Situ Segment, including it is prefabricated overlapping bottom plate, prefabricated folded
Close wallboard and prefabricated overlapping top plate；
(1) operating condition 1: when prefabricated and cast-in-place section construction transition region, which is located at deformation joint, to be laid in range, to guarantee deformation joint
Function is allowed in waterproof effect and certain deformation, buries steel side rubber in precast section deformation joint overlapping bottom plate and overlapping top plate setting
Rubber watertight strip and transmission rod is arranged in overlapping wall in waterstop；And further include
Step 1, overlapping bottom board unit lifting and in place；
Step 2, composite wallboard unit lifting and positioning；
Step 3, overlapping bottom plate top bars binding；
Step 4, overlapping bottom plate end head formwork installs and concreting, maintenance；
Top plate lifting is set up and overlapped to step 5, overlapping top plate supporting in place；
Step 6, overlapping top plate top bars binding；
Step 7, overlapping side wall and top plate end head formwork installs and concreting, maintenance；
Further, it is installed in deformation joint end head formwork using strap bolt hole customization L-type steel template assembly, and passes through clamping styrofoam
Realize the protection to the effective clamping and exposed finished product of deformation joint steel side waterstop；Fixed use of deformation joint transmission rod is being held
Head L-type steel template opens up the rod aperture of matched shape, position and size, and is effectively realized pair by the way that cube body component is arranged
The installation of transmission rod and accurate upsetting fixed bit, and further cube component is positioned using additional L punching block, wherein adding
L punching block holds the unified bolt of steel side waterstop page by bolt and end die clamp, wherein additional L punching block holds steel by bolt and end die clamp
Side waterstop page is unified to be bolted, and such method efficiently solves what transmission rod in conventional construction method occurred in concreting
Offsetting dip and the quality problems occurred；
(2) it operating condition 2: when prefabricated and cast-in-place section construction transition region is not in deformation joint laying range, reserves and takes in precast section
Connect the construction of reinforcing bar and with subsequent quasi- construction Cast-in-Situ Segment main body it is whole establish connection；Wherein, precast section and cast-in-place overlap are mixed
Solidifying soil will avoid forming construction straight joint with Cast-in-Situ Segment transition interface prefabricated when pouring along precast section to Cast-in-Situ Segment one-pass molding,
Guarantee globality and waterproof effect using the cast-in-place one-pass molding of Superposition unit.
A kind of overlapping piping lane precast section provided by the invention and Cast-in-Situ Segment transition processing and construction method, can be based on scene
Different operating conditions quickly pick out the reasonable construction mode taken to piping lane precast section and Cast-in-Situ Segment transition processing, and provide specific construction party
Method, and construction quality is easily guaranteed that, can play reference, reference role for the promotion of design and construction level corresponding in industry.
Detailed description of the invention
Fig. 1 is the whole operating condition schematic diagram needed using a preferred embodiments of the invention；
Fig. 2 is the standard section schematic diagram needed using a preferred embodiments of the invention；
Fig. 3 is that operating condition of the present invention (1) situation lower mould installs and transmission rod schematic diagram is consolidated in cube component upsetting；
Fig. 4 is to install additional L punching block to carry out positioning schematic diagram to cube component；
Fig. 5 is to need to set power transmission bar side L-type wall punching block schematic diagram under operating condition of the present invention (1) situation；
Fig. 6 is that cube component schematic diagram is consolidated in operating condition of the present invention (1) situation transmission rod upsetting；
Fig. 7 is to overlap wall under operating condition of the present invention (2) situation to be connected node diagram with cast-in-place wall
Fig. 8, Fig. 9 are respectively to overlap bottom plate under operating condition (2) situation to be connected node with cast-in-place bottom plate, overlapping top plate with casting top slab
Figure.
Specific embodiment
The present invention is further illustrated below by way of specific embodiment.
A kind of precast section of prefabricated assembled piping lane and the transition processing method of Cast-in-Situ Segment, including it is prefabricated overlapping bottom plate, pre-
Composite wallboard processed and prefabricated overlapping top plate；
When it is prefabricated be located at deformation joint with cast-in-place section construction transition region and lay in range when, for guarantee deformation joint waterproof effect and
Function is allowed in certain deformation, buried in precast section deformation joint overlapping bottom plate and overlapping top plate setting rubber watertight strip,
Overlap wall setting rubber watertight strip and transmission rod；And further include
Step 1, overlapping bottom board unit lifting and in place；
Step 2, composite wallboard unit lifting and positioning；
Step 3, overlapping bottom plate top bars binding；
Step 4, overlapping bottom plate end head formwork installs and concreting, maintenance；
Top plate lifting is set up and overlapped to step 5, overlapping top plate supporting in place；
Step 6, overlapping top plate top bars binding；
Step 7, overlapping side wall and top plate end head formwork installs and concreting, maintenance；
Further, when prefabricated and cast-in-place section construction transition region is not in deformation joint laying range, overlap joint is reserved in precast section
The construction of reinforcing bar and with subsequent quasi- construction Cast-in-Situ Segment main body it is whole establish connection；Wherein, precast section and cast-in-place overlap coagulation
Soil will avoid forming construction straight joint, benefit with Cast-in-Situ Segment transition interface prefabricated when pouring along precast section to Cast-in-Situ Segment one-pass molding
Guarantee globality and waterproof effect with the cast-in-place one-pass molding of Superposition unit.
Treatment method is further illustrated below by way of an embodiment:
A pair of cabin Urban Underground pipe gallery, including combustion gas cabin and comprehensive cabin, beam overall 6.25m, total a height of 3.8m, bottom plate, top
Plate thickness is 400mm, and side wall thicknesses 400mm, middle wall thickness is 300mm, wherein the wide 2.5m in combustion gas cabin, the comprehensive wide 3.75m in cabin,
The project uses prefabricated and cast-in-place combination construction technology, i.e., prefabricated overlapping mounting technology is used in standard section section, in special-shaped section
Cast in place technique being used, as shown in Figure 1, such combination construction technology is 1+2+3 sections in K0+500 ~ K0+550(Fig. 1) section is in position
4 positions in K0+525(Fig. 1), 5 positions in K0+540(Fig. 1) at there are precast sections and the operating condition of Cast-in-Situ Segment transition processing；Root
Require deformation joint maximum spacing to be no more than 30m according to corresponding Specification Design piping lane, at this time at the position 4 everywhere distance K0+500 before
One of expansion joint seam spacing is 25m, can carry out precast section 1 and 2 sections of Cast-in-Situ Segment by expansion joint processing mode by operating condition 1 herein
Transition；5 distance of position, 4 spacing is 15m, the reasonable pitch requirements of expansion joint arrangement has not yet been reached, to needing to carry out by work herein
Condition 2 carries out linking processing.
Piping lane main body is built using prefabrication and assembly construction congruent manner, prefabricated standard paragraphs main body section and the structure decorum such as Fig. 2 institute
To show, precast construction includes overlapping bottom plate 1` (1``), overlapping wall 2` (2``), overlaps top plate 3` (3``) three kinds of member units,
Middle overlapping bottom plate 1` (1``) and top plate 3` (3``) structure include overlapping bottom plate and pre-buried girder rib, need cloth in construction of bottom plates
If binding upper layer muscle；Overlapping wall 2` (2``) structure includes that overlapping belongs to sandwich wall construction, is connected by prefabricated embedded truss
It connects.
Its construction procedure are as follows:
Step 1, overlapping bottom board unit lifting and in place；
Step 2, composite wallboard unit lifting and positioning；
Step 3, overlapping bottom plate top bars binding；
Step 4, overlapping bottom plate end head formwork install and common water-tight concrete is poured, conserved；
Top plate lifting is set up and overlapped to step 5, overlapping top plate supporting in place；
Step 6, overlapping top plate top bars binding；
Step 7, overlapping side wall and top plate end head formwork installs and self-compaction water-tight concrete is poured, conserved.
Under operating condition (1) situation, to guarantee that function is allowed in waterproof effect and the certain deformation of deformation joint, need prefabricated
Rubber watertight strip is buried in section deformation joint overlapping bottom plate and overlapping top plate setting, in overlapping wall setting steel side rubber water-proof
Band and transmission rod.
As shown in Figure 3,4, in operating condition (1) deformation joint end head formwork using strap bolt hole 6,6` sizing 5cm thickness L-type steel
Template 8,9 assembly install, and the side width 7 of L-type steel mould is wall, 1/2 width of plate thickness, this engineering exterior wall, top plate and bottom plate thickness
For 400mm, middle wall thickness is 300mm, it is possible thereby to punching block side width be calculated, by prefabricated in prefabricated overlapping wall and plate body
Bolt hole carries out being fastenedly connected for steel plate and wall；The other side structure 7` of L-type steel mould makes for clamping exposed steel side waterstop, this
Engineering steel side sealing bandwidth is 300mm, and consideration is stayed to set bolt hole and implement pinching and be fixed, another side structure of L-type steel mould herein
Width takes 180mm, to guarantee that punching block to effective clamping of steel side waterstop and protecting effect, is filled out between steel side waterstop and steel plate
Fill the thick styrofoam 8` of 180m m wide, 3mm；Consider working procedure and position, takes different colours to identify punching block；
As shown in figure 3, the diameter of this engineering deformation joint transmission rod 10 in operating condition (1) is 22mm, fix using in end L
Steel form opens up the rod aperture of matched shape, position and size, and is effectively realized by setting 50mm*50mm cube component 11
Installation and accurate upsetting fixed bit to transmission rod, and using additional belt bolt hole 5mm thickness L punching block further to cube component into
Row positioning, wherein additional L punching block is held by bolt and end die clamp, steel side waterstop page is unified to be bolted, which is
130mm, length 3000mm, the bolt such method in side efficiently solve in conventional construction method transmission rod in concreting
The offsetting dip of middle appearance and the quality problems occurred；As shown in figure 4, component 11 offer fastened for transmission rod level it is straight
Diameter is 22mm hole 11`, then opens up rotation wire hole 11`` up and down by itself and carry out the clamping of transmission rod by rotation silk, and component 11 is logical
It crosses self construction patch and squeezes the positioning and accurate installation that can effectively realize transmission rod with punching block contact surface.
When handling operating condition (2), if Fig. 6 to 8 uses a kind of connection structure node, i.e., reserved in precast section
The lap segment 12 of certain length realizes effective linking of precast section and Cast-in-Situ Segment, and 12 length of lap segment takes 1.6Lae in this engineering,
It is overlap joint bar diameter that Lae, which takes 34d, d,；
Linking node overlap at operating condition (2) is to make a concession to realize by precast section assembled rigid unit herein, prefabricated herein
Main body assembled rigid unit 3` length is equal to standard knot 3`` main body assembled rigid unit length plus 12 length in reserve of overlap；
Precast section sandwich wall is connected using truss in operating condition (1), and reinforcing bar is more intensive, and normal concrete needs that is unfolded to vibrate
Work difficulty is larger, and to guarantee entity shaping and anti-seepage effect, overlapping bottom plate and overlapping top plate are using common in operating condition (1)
C40 seepage-resistant grade is that the coagulation body of P6 pours, and the cast-in-place part of sandwich wall for overlapping wall uses C40 self-compaction seepage-resistant grade for P6
Concreting；It extends within the scope of cast-in-place side 500mm and uses and the matched coagulation of precast section in overlap joint range in operating condition (2)
Soil, it is subsequent cast-in-place using common C40 concreting.
Under operating condition (2) situation when prefabricated and cast-in-place overlap concreting will along precast section to Cast-in-Situ Segment once at
Type avoids forming construction straight joint with Cast-in-Situ Segment transition interface prefabricated, guarantees the globality and waterproof effect of main body.
Claims (3)
1. a kind of precast section of prefabricated assembled piping lane and the transition processing method of Cast-in-Situ Segment, including it is prefabricated overlapping bottom plate, prefabricated
Composite wallboard and prefabricated overlapping top plate；It is characterized in that:
When it is prefabricated be located at deformation joint with cast-in-place section construction transition region and lay in range when, for guarantee deformation joint waterproof effect and
Function is allowed in certain deformation, buried in precast section deformation joint overlapping bottom plate and overlapping top plate setting rubber watertight strip,
Overlap wall setting rubber watertight strip and transmission rod；And further include
Step 1, overlapping bottom board unit lifting and in place；
Step 2, composite wallboard unit lifting and positioning；
Step 3, overlapping bottom plate top bars binding；
Step 4, overlapping bottom plate end head formwork installs and concreting, maintenance；
Top plate lifting is set up and overlapped to step 5, overlapping top plate supporting in place；
Step 6, overlapping top plate top bars binding；
Step 7, overlapping side wall and top plate end head formwork installs and concreting, maintenance；
Further, when prefabricated and cast-in-place section construction transition region is not in deformation joint laying range, overlap joint is reserved in precast section
The construction of reinforcing bar and with subsequent quasi- construction Cast-in-Situ Segment main body it is whole establish connection；Wherein, precast section and cast-in-place overlap coagulation
Soil will avoid forming construction straight joint, benefit with Cast-in-Situ Segment transition interface prefabricated when pouring along precast section to Cast-in-Situ Segment one-pass molding
Guarantee globality and waterproof effect with the cast-in-place one-pass molding of Superposition unit.
2. a kind of overlapping piping lane precast section according to claim 1 and Cast-in-Situ Segment transition processing and construction method, feature
It is: is installed in deformation joint end head formwork using strap bolt hole customization L-type steel template assembly, and realized by clamping styrofoam to change
The protection of the effective clamping and exposed finished product of steel side waterstop at shape seam.
3. a kind of overlapping piping lane precast section according to claim 1 and Cast-in-Situ Segment transition processing and construction method, feature
It is: opens up the rod aperture of matched shape, position and size in end L-type steel template in fixed use of deformation joint transmission rod, and lead to
Cross setting cube body component and effectively realize installation and accurate upsetting fixed bit to transmission rod, and using add L punching block into
One step positions cube component, wherein additional L punching block is held by bolt and end die clamp, steel side waterstop page is unified to be bolted,
It wherein adds L punching block and waterstop page unified bolt in steel side is held by bolt and end die clamp, such method efficiently solves tradition and applies
Transmission rod occurs in concreting in work method offsetting dip and the quality problems occurred.
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| CN111173029A (en) * | 2020-01-10 | 2020-05-19 | 上海二十冶建设有限公司 | Prefabricated superposed assembly type underground comprehensive pipe gallery sandwich wallboard and construction method thereof |
| CN112726663A (en) * | 2020-12-25 | 2021-04-30 | 中国建筑第八工程局有限公司 | Connecting construction method for cast-in-situ sections of prefabricated comprehensive pipe gallery |
| CN114718123A (en) * | 2022-04-28 | 2022-07-08 | 中国一冶集团有限公司 | Prefabricated pipe jacking gallery and cast-in-place pipe gallery butt joint construction method |
| CN115262434A (en) * | 2022-09-27 | 2022-11-01 | 山西建投建筑产业有限公司 | Assembled integral four-cabin flood discharge box culvert haunching structure and construction method |
| CN115354691A (en) * | 2022-09-13 | 2022-11-18 | 成都市市政工程设计研究院有限公司 | Connection structure of prefabricated section of utility tunnel arc and cast-in-place node |
| CN115419114A (en) * | 2022-08-31 | 2022-12-02 | 四川华构建筑工程有限公司 | Construction method and construction structure of deformation joints in prefabricated section of prefabricated comprehensive pipe gallery |
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| CN111173029A (en) * | 2020-01-10 | 2020-05-19 | 上海二十冶建设有限公司 | Prefabricated superposed assembly type underground comprehensive pipe gallery sandwich wallboard and construction method thereof |
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| CN115419114A (en) * | 2022-08-31 | 2022-12-02 | 四川华构建筑工程有限公司 | Construction method and construction structure of deformation joints in prefabricated section of prefabricated comprehensive pipe gallery |
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| CN115262434A (en) * | 2022-09-27 | 2022-11-01 | 山西建投建筑产业有限公司 | Assembled integral four-cabin flood discharge box culvert haunching structure and construction method |
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Application publication date: 20190510 |