CN108487095B - Box culvert connection construction process - Google Patents
Box culvert connection construction process Download PDFInfo
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- CN108487095B CN108487095B CN201810257577.9A CN201810257577A CN108487095B CN 108487095 B CN108487095 B CN 108487095B CN 201810257577 A CN201810257577 A CN 201810257577A CN 108487095 B CN108487095 B CN 108487095B
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- box culvert
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- butt joint
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F5/00—Draining the sub-base, i.e. subgrade or ground-work, e.g. embankment of roads or of the ballastway of railways or draining-off road surface or ballastway drainage by trenches, culverts, or conduits or other specially adapted means
- E01F5/005—Culverts ; Head-structures for culverts, or for drainage-conduit outlets in slopes
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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
- E02D29/16—Arrangement or construction of joints in foundation structures
Abstract
The invention discloses a box culvert connection construction process, which comprises the following steps: according to the actual connecting position of the newly-built box culvert and the current box culvert, surrounding the construction area of the connecting position and carrying out traffic diversion; breaking a part of soil layer of the road surface excavation, and constructing foundation pit steel sheet pile support and excavation grooves; reinforcing the side wall of the existing box culvert at the butt joint section of the existing box culvert and the newly-built box culvert, and constructing the newly-built concrete side wall and the newly-built box culvert; dredging the existing box culvert and the drainage facility; chiseling the side wall of the box culvert at the butt joint section after the construction of the newly-built box culvert is finished; and backfilling the grooves to finish box culvert connection. The method improves the connection quality of the joints of the old box culvert and the new box culvert, is not influenced by easily aging components such as sealing rings and the like, is not easy to deform, ensures the use function of the joints of the box culverts, and has the advantages of low construction difficulty, short construction period and reliable engineering operation.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to a box culvert connection construction process.
Background
Cast-in-place reinforced concrete box culvert is the common culvert structural style of newly-built drainage system, and when newly-built reinforced concrete box culvert, the quality that newly-built box culvert inserts current situation box culvert or crosses current situation box culvert department box culvert connection structure will influence whole drainage system's function.
The box culvert arc connecting structure (application number: 201210067132.7) discloses a box culvert arc connecting structure which can enhance the strength of the box culvert joint and prevent the box culvert from generating dislocation and other problems due to foundation sinking; on the other hand, the end that extends to the arc at the arc hole and connects the box culvert inner wall sets up the chute rather than excavating straight mounting hole, has reduced the weakening to box culvert structural strength, has expanded installation space simultaneously, makes the installation more convenient. But does not solve the problem of the connecting structure of the newly-built box culvert and the current box culvert.
A method for connecting an existing box culvert into a pipeline (application number: 201610761048.3) discloses a method for connecting an existing box culvert into a pipeline, which integrates an old pipeline into a box culvert and is convenient to manage; meanwhile, no gap exists between the embedded sealing ring and the end face of the box culvert joint, so that water seepage is avoided; when two box culvert concatenation departments take place to warp, pre-buried sealing ring and clamping ring still can play good waterproof effect, have avoided the box culvert interface to appear the infiltration condition completely, the safety and the normal operation of interface when ensureing the box culvert connection construction. However, the connection quality of the box culvert connecting structure formed by the method for connecting the existing box culvert into the pipeline is limited by the service lives of the embedded sealing rings and the pressing rings, and the quality and the use function of the box culvert connecting structure are difficult to ensure.
Disclosure of Invention
The invention aims to solve the technical problems that aiming at the defects in the prior art, the box culvert connecting construction process is provided, the connecting quality of the connecting positions of the new box culvert and the old box culvert is improved, the connecting quality is not influenced by parts which are easy to age, such as sealing rings and the like, deformation is not easy to occur, and the use function of the connecting positions of the box culverts is ensured.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a box culvert connection construction process comprises the following steps:
1) according to the actual connecting position of the newly-built box culvert and the current box culvert, surrounding the construction area of the connecting position and carrying out traffic diversion; breaking a part of soil layer of the road surface excavation, constructing a foundation pit steel sheet pile support, excavating a groove and carrying out test detection;
2) reinforcing the side wall of the existing box culvert at the butt joint section of the existing box culvert and the newly-built box culvert, and constructing the newly-built concrete side wall and the newly-built box culvert;
3) dredging the existing box culvert and the drainage facility;
4) chiseling the side wall of the box culvert at the butt joint section after the construction of the newly-built box culvert is finished;
5) and backfilling the grooves to finish box culvert connection.
According to the technical scheme, in the step 2), the concrete process of constructing the newly-built concrete side wall and the newly-built box culvert comprises the following steps:
a) implanting a plurality of planting bars on the butt joint section of the side wall of the current box culvert;
b) a reinforcing bar net sheet is bound on the embedded bars;
c) and pouring concrete on the embedded bars and the reinforcing mesh sheets to form the newly-built concrete side wall, so that the newly-built concrete side wall and the newly-built box culvert are integrally poured and formed.
According to the technical scheme, in the step a), a plurality of planting bars are uniformly distributed, and the distance between every two adjacent planting bars is 15-25 cm.
According to the technical scheme, in the step a), the diameter of the planted bar is phi 14 mm-phi 18 mm.
According to the technical scheme, in the step a), the depth of the embedded steel bars implanted into the butt joint section of the side wall of the box culvert at the present situation is 12cm-18cm, and the exposed length of the embedded steel bars is 30cm-40 cm.
According to the technical scheme, in the step b), the specification of the reinforcing steel bar net piece is phi 12mm @20cm multiplied by 20cm, and the distance between reinforcing steel bars is 20 mm.
According to the technical scheme, in the step 1), the steel sheet pile supports are arranged on two sides of the position of the newly-built box culvert.
According to the technical scheme, in the step 2), a newly-built concrete side wall cushion layer is arranged at the bottom of the newly-built concrete side wall.
According to the technical scheme, the length of the butt joint section between the side wall of the box culvert and the newly-built box culvert is 10-20 m.
The invention has the following beneficial effects:
through the box culvert connection construction process, the problem that a newly-built box culvert is connected with a current box culvert is solved, the newly-built box culvert is connected with the current box culvert without pre-buried sealing rings and pressing rings, the newly-built concrete side wall and the newly-built box culvert are integrally formed, the connection quality of the connection part of the new box culvert and the old box culvert is improved, the connection quality is not influenced by easily-aged components such as the sealing rings, deformation is not easy to occur, and the use function of the connection part of the box culvert is ensured.
Drawings
FIG. 1 is a schematic structural diagram of a box culvert connecting structure in the embodiment of the invention;
FIG. 2 is a bottom view of FIG. 1;
FIG. 3 is a schematic elevation view of a newly-built concrete side wall in the embodiment of the present invention;
in the figure, 1-a current box culvert, 2-a current box culvert side wall, 3-newly-built concrete side walls, 4-newly-built box culvert, 5-steel sheet pile support, 6-bar planting, 7-newly-built concrete side wall cushion and 8-steel bar meshes.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and examples.
Referring to fig. 1 to 3, in an embodiment of the present invention, a box culvert connecting construction process includes the following steps:
1) according to the actual connecting position of the newly-built box culvert 4 and the current box culvert 1, surrounding the construction area of the connecting position and carrying out traffic diversion; breaking a part of soil layer of the road surface excavation, constructing a foundation pit steel sheet pile support 5, excavating a groove and carrying out test detection;
2) reinforcing the current box culvert side wall 2 where the butt joint section of the current box culvert 1 and the newly-built box culvert 4 is located, and constructing a newly-built concrete side wall 3 and a newly-built box culvert 4;
3) dredging the current box culvert 1 and the drainage facility;
4) chiseling off the side wall 2 of the box culvert at the butt joint section after the construction of the newly-built box culvert 4 is finished;
5) and backfilling the grooves to finish box culvert connection.
Further, in the step 2), the specific process of constructing the newly-built concrete side wall 3 and the newly-built box culvert 4 includes:
a) implanting a plurality of planting bars 6 on the butt joint section of the current box culvert side wall 2;
b) a reinforcing mesh 8 is bound on the embedded bars 6;
c) and pouring concrete on the embedded steel bars 6 and the steel bar net sheets 8 to form the newly-built concrete side wall 3, so that the newly-built concrete side wall 3 and the newly-built box culvert 4 are integrally poured and formed.
Further, in the step a), the plurality of the planted bars 6 are uniformly distributed, and the distance between every two adjacent planted bars 6 is 15 cm-25 cm.
Further, in the step a), the diameter of the bar planting 6 is phi 14 mm-phi 18 mm.
Further, in the step a), the depth of the embedded steel bars 6 implanted into the butt joint section of the current box culvert side wall 2 is 12cm-18cm, and the exposed length of the embedded steel bars 6 is 30cm-40 cm.
Further, in the step b), the specification of the reinforcing mesh 8 is phi 12mm @20cm × 20cm, and the phi 12mm @20cm × 20cm means that the reinforcing steel bars in the reinforcing mesh are phi 12mm, and the length and the width of each unit mesh are 20 cm.
Further, in the step 1), steel sheet pile supports 5 are arranged on two sides of the position of the newly-built box culvert 4.
Further, in the step 2), a newly-built concrete side wall cushion layer 7 is arranged at the bottom of the newly-built concrete side wall 3.
Further, the length of the butt joint section between the current box culvert side wall 2 and the newly-built box culvert 4 is 10 m-20 m.
Further, in the step 3), the concrete sequence of dredging the current box culvert 1 and the drainage facility is as follows: the upper stream is firstly followed by the lower stream, and the branch pipe culvert is firstly followed by the trunk pipe culvert.
Example 1:
the invention relates to a box culvert connection construction process, which comprises the following steps:
1. according to the actual connection condition of a newly-built box culvert 4 of 2.8 multiplied by 1.5m and a box culvert 1 of 4.2 multiplied by 2.0m, enclosing a construction area and guiding traffic; breaking a part of soil layer of the road surface excavation, constructing a foundation pit steel sheet pile support 5, excavating a groove and carrying out test detection;
2. reinforcing the existing box culvert side wall 2 at the butt joint section of the existing box culvert 1 of 2.8 multiplied by 1.5m and the newly-built box culvert 4 of 4.2 multiplied by 2.0m, and constructing the newly-built box culvert 4; the length of the butt joint section of the current box culvert 1 on the two sides and the newly-built box culvert 4 is 20m respectively; reinforcing the side wall 2 of the butt joint section of the current box culvert 1 and the newly-built box culvert 4, planting ribs 6 on the side wall 2 of the current box culvert, planting phi 16 reinforcing steel bars, being 15cm deep, exposed for 35cm and 20cm apart, and binding reinforcing mesh sheets 8 of @20cm phi 12 on the reinforcing mesh sheets; constructing a newly-built concrete side wall 3 and a newly-built box culvert 4, wherein the thickness of the newly-built concrete side wall 3 is 0.4m, and the newly-built box culvert 4 comprises a box culvert bottom plate, a side wall and a top plate;
3. dredging the box culvert 1 and the drainage facility; firstly, branching a pipe culvert and then main pipe culverts at the upstream and the downstream;
4. chiseling off the side wall 2 of the butt joint section of the current box culvert 1, and chiseling off the butt joint side wall 2 of the current box culvert 1 after the construction of the newly-built box culvert 4 is finished;
5. backfilling the grooves to complete box culvert connection;
the utility model provides a box culvert connection construction technology has solved the difficult problem that newly-built box culvert 4 is connected with present box culvert 1, has realized that need not pre-buried sealing ring and clamp ring and realize newly-built box culvert 4 and be connected with present box culvert 1, and box culvert junction high quality is difficult for taking place to warp, guarantees the service function of box culvert junction. The invention also has the advantages of small construction difficulty, short construction period, reliable engineering operation and the like.
Example 2:
the same as example 1 except that: the size of the existing box culvert 1 is 2.8 multiplied by 2.0m, and the length of the butt joint of the existing box culvert 1 on the two sides and the newly-built box culvert 4 is 10m respectively.
The above is only a preferred embodiment of the present invention, and certainly, the scope of the present invention should not be limited thereby, and therefore, the present invention is not limited by the scope of the claims.
Claims (7)
1. The box culvert connecting construction process is characterized by comprising the following steps of:
1) according to the actual connecting position of the newly-built box culvert and the current box culvert, surrounding the construction area of the connecting position and carrying out traffic diversion; breaking a part of soil layer of the road surface excavation, and constructing foundation pit steel sheet pile support and excavation grooves;
2) reinforcing the side wall of the existing box culvert at the butt joint section of the existing box culvert and the newly-built box culvert, and constructing the newly-built concrete side wall and the newly-built box culvert;
3) dredging the existing box culvert and the drainage facility;
4) chiseling the side wall of the box culvert at the butt joint section after the construction of the newly-built box culvert is finished;
5) backfilling the grooves to complete box culvert connection;
in the step 2), the concrete process of constructing the newly-built concrete side wall and the newly-built box culvert comprises the following steps:
a) implanting a plurality of planting bars on the butt joint section of the side wall of the current box culvert;
b) a reinforcing bar net sheet is bound on the embedded bars;
c) and pouring concrete on the embedded bars and the reinforcing mesh sheets to form the newly-built concrete side wall, so that the newly-built concrete side wall and the newly-built box culvert are integrally poured and formed.
2. The box culvert connecting construction process according to claim 1, wherein in the step a), a plurality of planting bars are uniformly distributed, and the distance between adjacent planting bars is 15-25 cm.
3. The box culvert connecting construction process according to claim 1, wherein in the step a), the diameter of the embedded steel bars is phi 14 mm-phi 18 mm.
4. The box culvert connecting construction process according to claim 1, wherein in the step a), the embedded steel bars are implanted into the butt joint sections of the current box culvert side walls to a depth of 12cm-18cm, and the exposed length of the embedded steel bars is 30cm-40 cm.
5. The box culvert connecting construction process according to claim 1, wherein in the step b), the specification of the steel mesh is phi 12mm @20cm x 20 cm.
6. The box culvert connecting construction process according to claim 1, wherein in the step 2), a newly-built concrete side wall cushion layer is arranged at the bottom of the newly-built concrete side wall.
7. The box culvert connecting construction process according to claim 1, wherein the length of the butt joint section between the existing box culvert side wall and the newly-built box culvert is 10 m-20 m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810257577.9A CN108487095B (en) | 2018-03-27 | 2018-03-27 | Box culvert connection construction process |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810257577.9A CN108487095B (en) | 2018-03-27 | 2018-03-27 | Box culvert connection construction process |
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| CN108487095B true CN108487095B (en) | 2021-01-26 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110029599B (en) * | 2019-05-17 | 2024-01-30 | 苏交科集团股份有限公司 | Prefabricated culvert steel connection structure and construction method |
| CN110306449B (en) * | 2019-05-31 | 2021-08-27 | 武汉市武昌市政建设(集团)有限公司 | Method for connecting new box culvert and existing road box culvert |
| CN112458930A (en) * | 2020-10-29 | 2021-03-09 | 上海市政工程设计研究总院（集团）有限公司 | Connecting construction method for water passing box culvert |
| CN112458933B (en) * | 2020-10-29 | 2023-01-17 | 上海市政工程设计研究总院（集团）有限公司 | Double-hole water diversion box culvert joining construction method |
| CN115852868A (en) * | 2023-02-09 | 2023-03-28 | 中交路桥华东工程有限公司 | Urban rainwater box culvert expansion construction method |
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| KR20070111431A (en) * | 2007-10-29 | 2007-11-21 | 백경종 | The connection method of the assembly p.c culvert which applies the inner fixation system |
| KR100981577B1 (en) * | 2010-06-30 | 2010-09-10 | 조명주 | Connecting structure of precast box culvert units using connecting anchor bars and concrete box culvert having such connecting structure |
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| CN108487095A (en) | 2018-09-04 |
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