CN106013219A - Splicing method of prefabricated split mounting type tunnel - Google Patents
Splicing method of prefabricated split mounting type tunnel Download PDFInfo
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- CN106013219A CN106013219A CN201610366727.0A CN201610366727A CN106013219A CN 106013219 A CN106013219 A CN 106013219A CN 201610366727 A CN201610366727 A CN 201610366727A CN 106013219 A CN106013219 A CN 106013219A
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- China
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- section
- sections
- follow
- epoxy adhesive
- reserving hole
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/045—Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location line; Methods of making them
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- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Reinforcement Elements For Buildings (AREA)
Abstract
The invention discloses a splicing method of a prefabricated split mounting type tunnel. The splicing method comprises the following steps: S1, correspondingly reserving prestressed reserved hole channels in N sections of a prefabricated split mounting type tunnel structure, and arranging a key groove structure in a section joint of each section; and S2, positioning the adjacent sections through the corresponding key groove structures; sequentially arranging prestressed tendons through the corresponding prestressed reserved hole channels in the sections so as to enable serial connection of the N sections; and adhering the section joint between every two adjacent sections through an epoxy adhesive. According to the above method, the prestressed tendons are correspondingly stretched by sections, so that gaps among the sections can be effectively controlled, and moreover, the epoxy adhesives among the sections can timely act to enable the optimal waterproofing effect of the section joints.
Description
Technical field
The present invention relates to precast construction technical field, be specifically related to the joining method that a kind of precast assembly is genuine.
Background technology
China's underpass uses the construction method of integral cast-in-situ, but have that the construction period is longer, construction quality is difficult to ensure that, pollute the series of problems such as urban environment to a certain extent, for this, units concerned provide the design concept that precast assembly is genuine, but it is currently in conceptual phase, carries out application the most on a large scale；It is worth mentioning that, along with domestic and international other types engineering carries out popularization and the application of precast assembly construction method on a large scale, the construction method of underpass employing precast assembly is imperative, but, by controlling factors such as transport, liftings, Precast Underpass sections typically requires and splices, and the most how to ensure that assembled quality has become key problem.
Summary of the invention
It is an object of the invention to provide the joining method that a kind of precast assembly is genuine, the method can efficiently solve stress and the waterproof problem of assembled seam.
In order to achieve the above object, the present invention is achieved through the following technical solutions:
The joining method that a kind of precast assembly is genuine, is characterized in that, comprise the steps of
S1, on the N section sections of precast assembly underpass, reserve prestressing force reserving hole channel respectively, keyway arrangements is set at the segmental joints of each sections；
S2, adjacent segment are positioned by keyway arrangements, prestressing tendon penetrates prestressing force reserving hole channel on each sections successively and makes N section sections connect, carry out bonding by epoxy adhesive at the segmental joints between adjacent segment.
The joining method that above-mentioned precast assembly is genuine, wherein, described step S2 specifically comprises:
S21, Section 1 section position with Section 2 section, prestressing tendon sequentially passes through Section 1 section and each prestressing force reserving hole channel in Section 2 section, makes Section 1 section connect with Section 2 section, carry out bonding by epoxy adhesive at the segmental joints between adjacent segment；
S22, follow-up sections is positioned with previous sections, prestressing tendon is continued across each prestressing force reserving hole channel on follow-up sections, makes follow-up sections be connected in series on previous sections, carry out bonding by epoxy adhesive at the segmental joints between adjacent segment；
S23, repetition step S22, splice follow-up sections, one by one until N sections has spliced.
The joining method that above-mentioned precast assembly is genuine, wherein, described step S21 specifically comprises:
S211, Section 1 section is positioned with Section 2 section；
S212, at the segmental joints of Section 1 section and Section 2 section brushing epoxy adhesive；
S213, prestressing force reserving hole channel prestressing tendon correspondence penetrated in Section 1 section and Section 2 section；
S214, made by stretch-draw Section 1 section and Section 2 section splice, make the epoxy adhesive of sections seam crossing combine simultaneously.
The joining method that above-mentioned precast assembly is genuine, wherein, described step S21 specifically comprises:
S221, follow-up sections is positioned with previous sections；
S222, at the segmental joints of follow-up sections and previous sections brushing epoxy adhesive；
S223, prestressing tendon correspondence is penetrated the prestressing force reserving hole channel on follow-up sections；
S224, follow-up sections is positioned by keyway arrangements with previous sections；
S225, made by stretch-draw follow-up sections and previous sections splice, make the epoxy adhesive of sections seam crossing combine simultaneously；
S226, carry out sealing off and covering anchorage in time, and adapter is set.
The present invention compared with prior art has the advantage that said method makes prestressing tendon by sections stretch-draw respectively, the most effectively controls the space between sections, on the other hand ensures that the epoxy adhesive between sections plays a role in time；Sections is first positioned by this method, repastes brush epoxy adhesive, and passes through prestressing tendon in prestressing force reserving hole channel, after timely stretch-draw, it is ensured that the epoxy adhesive at segmental joints combines so that the waterproof effect of segmental joints reaches optimal.
Accompanying drawing explanation
Fig. 1 be the present invention precast assembly tunnel in the non-seam crossing transverse section of sections；
Fig. 2 be the present invention precast assembly tunnel in sections segmental joints at transverse section；
Fig. 3 is the I-I profile of Fig. 2；
Fig. 4 is the prestressing tendon stretch-draw figure of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, by describing a preferably specific embodiment in detail, the present invention is further elaborated.
Such as Fig. 1, shown in 4；A kind of precast assembly is genuine, and it comprises: N section sections, each sections is respectively equipped with some prestressing force reserving hole channels 1, it is simple to passing through of prestressing tendon 4；Some prestressing tendons 4, every prestressing tendon 4 is corresponding in turn to through the prestressing force reserving hole channel 1 on described each sections, by described N section sections series connection, to form segmental joints between adjacent segment；Epoxy adhesive 3 is passed through bonding so that stress performance and durability reach optimal, and play the effect of well discharging water at segmental joints between described each sections.
Not carrying out sealing off and covering anchorage 5 between the 1st, the 2nd section of described sections, between remaining each sections, notch position at prestressing force reserving hole channel 1 carries out sealing off and covering anchorage 5 respectively.
The keyway arrangements 2 being located by connecting with adjacent segment it is respectively provided with, in order to the location during section assembling and the shearing resistance effect during operation at the segmental joints of described each sections.
In the present embodiment, described keyway arrangements 2 is: be positioned at the protuberance at every section of sections side segmental joints, and it is positioned at the recess at every section of sections opposite side segmental joints, specifically can refer to transverse section at the segmental joints of the 4th Section 5 section shown in Fig. 2, and I-I profile Fig. 3 of Fig. 2.
In the present embodiment, as it is shown in figure 1, the transverse section of each sections is rectangular box, prestressing force reserving hole channel 1 and keyway arrangements 2 are all distributed on sections surrounding, prestressing force reserving hole channel 1 on each sections is provided with 6, and the every side of keyway arrangements 2 is provided with 14, and prestressing tendon 4 needs 6 altogether.
Present invention also offers the joining method that a kind of precast assembly is genuine, it comprises the steps of
S1, on the N section sections of precast assembly underpass, reserve prestressing force reserving hole channel 1 respectively, keyway arrangements 2 is set at the segmental joints of each sections；
S2, adjacent segment are positioned by keyway arrangements 2, prestressing tendon 4 penetrates prestressing force reserving hole channel 1 on each sections successively and makes N section sections connect, and carry out bonding by epoxy adhesive 3 at the segmental joints between adjacent segment.
The joining method that described precast assembly is genuine, wherein, described step S2 specifically comprises:
S21, Section 1 section position with Section 2 section, prestressing tendon 4 sequentially passes through Section 1 section and each prestressing force reserving hole channel 1 in Section 2 section, makes Section 1 section connect with Section 2 section, carry out bonding by epoxy adhesive 3 at the segmental joints between adjacent segment；
S22, follow-up sections is positioned with previous sections, prestressing tendon 4 is continued across each prestressing force reserving hole channel 1 on follow-up sections, make follow-up sections be connected in series on previous sections, carry out bonding by epoxy adhesive 3 at the segmental joints between adjacent segment；
S23, repetition step S22, splice follow-up sections, one by one until N sections has spliced.
The joining method that described precast assembly is genuine, wherein, described step S21 specifically comprises:
S211, Section 1 section is positioned with Section 2 section；
S212, at the segmental joints of Section 1 section and Section 2 section brushing epoxy adhesive 3；
S213, the prestressing force reserving hole channel 1 prestressing tendon correspondence penetrated in Section 1 section and Section 2 section；
S214, made by stretch-draw Section 1 section and Section 2 section splice, make the epoxy adhesive 3 of sections seam crossing combine simultaneously.
The joining method that described precast assembly is genuine, wherein, described step S21 specifically comprises:
S221, follow-up sections is positioned with previous sections；
S222, at the segmental joints of follow-up sections and previous sections brushing epoxy adhesive 3；
S223, prestressing tendon 4 correspondence is penetrated the prestressing force reserving hole channel 1 on follow-up sections；
S224, follow-up sections is positioned by keyway arrangements with previous sections；
S225, made by stretch-draw follow-up sections and previous sections splice, make the epoxy adhesive 3 of sections seam crossing combine simultaneously；
S226, carry out sealing off and covering anchorage 5 in time, and adapter is set.
Using adapter one section of prestressing tendon can be carried out stretch-draw respectively, the length of one section of prestressing tendon determines according to the modulus of sections.
Said method makes prestressing tendon by sections stretch-draw respectively, the most effectively controls the space between sections, on the other hand ensures that the epoxy adhesive between sections plays a role in time；Sections is first positioned by this method, repastes brush epoxy adhesive, and passes through prestressing tendon in prestressing force reserving hole channel, after timely stretch-draw, it is ensured that the epoxy adhesive at segmental joints combines so that the waterproof effect of segmental joints reaches optimal.
Although present disclosure has been made to be discussed in detail by above preferred embodiment, but it should be appreciated that the description above is not considered as limitation of the present invention.After those skilled in the art have read foregoing, multiple amendment and replacement for the present invention all will be apparent from.Therefore, protection scope of the present invention should be limited to the appended claims.
Claims (4)
1. the joining method that a precast assembly is genuine, it is characterised in that comprise the steps of
S1, on the N section sections of precast assembly underpass, reserve prestressing force reserving hole channel respectively, keyway arrangements is set at the segmental joints of each sections；
S2, adjacent segment are positioned by keyway arrangements, prestressing tendon penetrates prestressing force reserving hole channel on each sections successively and makes N section sections connect, carry out bonding by epoxy adhesive at the segmental joints between adjacent segment.
2. the joining method that precast assembly as claimed in claim 1 is genuine, wherein, described step S2 specifically comprises:
S21, Section 1 section position with Section 2 section, prestressing tendon sequentially passes through Section 1 section and each prestressing force reserving hole channel in Section 2 section, makes Section 1 section connect with Section 2 section, carry out bonding by epoxy adhesive at the segmental joints between adjacent segment；
S22, follow-up sections is positioned with previous sections, prestressing tendon is continued across each prestressing force reserving hole channel on follow-up sections, makes follow-up sections be connected in series on previous sections, carry out bonding by epoxy adhesive at the segmental joints between adjacent segment；
S23, repetition step S22, splice follow-up sections, one by one until N sections has spliced.
3. the joining method that precast assembly as claimed in claim 2 is genuine, it is characterised in that wherein, described step S21 specifically comprises:
S211, Section 1 section is positioned with Section 2 section；
S212, at the segmental joints of Section 1 section and Section 2 section brushing epoxy adhesive；
S213, prestressing force reserving hole channel prestressing tendon correspondence penetrated in Section 1 section and Section 2 section；
S214, made by stretch-draw Section 1 section and Section 2 section splice, make the epoxy adhesive of sections seam crossing combine simultaneously.
4. the joining method that precast assembly as claimed in claim 3 is genuine, it is characterised in that wherein, described step S21 specifically comprises:
S221, follow-up sections is positioned with previous sections；
S222, at the segmental joints of follow-up sections and previous sections brushing epoxy adhesive；
S223, prestressing tendon correspondence is penetrated the prestressing force reserving hole channel on follow-up sections；
S224, follow-up sections is positioned by keyway arrangements with previous sections；
S225, made by stretch-draw follow-up sections and previous sections splice, make the epoxy adhesive of sections seam crossing combine simultaneously；
S226, carry out sealing off and covering anchorage in time, and adapter is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610366727.0A CN106013219A (en) | 2016-05-30 | 2016-05-30 | Splicing method of prefabricated split mounting type tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610366727.0A CN106013219A (en) | 2016-05-30 | 2016-05-30 | Splicing method of prefabricated split mounting type tunnel |
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| Publication Number | Publication Date |
|---|---|
| CN106013219A true CN106013219A (en) | 2016-10-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610366727.0A Pending CN106013219A (en) | 2016-05-30 | 2016-05-30 | Splicing method of prefabricated split mounting type tunnel |
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| CN (1) | CN106013219A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108755760A (en) * | 2018-08-01 | 2018-11-06 | 中冶长天国际工程有限责任公司 | A kind of pipe gallery with high intensity interface |
| CN111042205A (en) * | 2019-12-12 | 2020-04-21 | 上海市基础工程集团有限公司 | Splicing connection and fastening method for prefabricated box culvert |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101684638A (en) * | 2008-09-23 | 2010-03-31 | 中交第三航务工程局有限公司 | Assembly method of section box girder |
-
2016
- 2016-05-30 CN CN201610366727.0A patent/CN106013219A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101684638A (en) * | 2008-09-23 | 2010-03-31 | 中交第三航务工程局有限公司 | Assembly method of section box girder |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108755760A (en) * | 2018-08-01 | 2018-11-06 | 中冶长天国际工程有限责任公司 | A kind of pipe gallery with high intensity interface |
| CN111042205A (en) * | 2019-12-12 | 2020-04-21 | 上海市基础工程集团有限公司 | Splicing connection and fastening method for prefabricated box culvert |
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Application publication date: 20161012 |
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