CN106012877B - A kind of comb culvert and its construction method - Google Patents

A kind of comb culvert and its construction method Download PDF

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Publication number
CN106012877B
CN106012877B CN201610412842.7A CN201610412842A CN106012877B CN 106012877 B CN106012877 B CN 106012877B CN 201610412842 A CN201610412842 A CN 201610412842A CN 106012877 B CN106012877 B CN 106012877B
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CN
China
Prior art keywords
comb
culvert
duct
hole
arc
Prior art date
Application number
CN201610412842.7A
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Chinese (zh)
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CN106012877A (en
Inventor
李家春
廖艳鹤
田伟平
张华瓒
樊昌翼
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长安大学
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Priority to CN201610412842.7A priority Critical patent/CN106012877B/en
Publication of CN106012877A publication Critical patent/CN106012877A/en
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Publication of CN106012877B publication Critical patent/CN106012877B/en

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    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01FADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F5/00Draining 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
    • E01F5/005Culverts ; Head-structures for culverts, or for drainage-conduit outlets in slopes

Abstract

The invention discloses a kind of comb culvert, the comb culvert is that the hole comb of single or multiple lift three rearranges, each three hole comb is tabular reinforced concrete structure, 3 circular ducts are equipped with every three hole combs, a diameter of 30cm in circular duct, duct periphery upper and lower plates reserve thickness and are not less than 6cm, thickness is 6cm at interval minimum between two neighboring circular duct, three holes comb both sides are respectively equipped with right side arc interface and left side arc interface, the arc radius of right side arc interface and left side arc interface is 39cm, a height of 3cm of arc.The present invention can reduce compression of the culvert to river course, reduce the interference to natural stream networks, avoid raising depth of fill because of culvert height limitation, reduce construction investment;Comb individual layer can be arranged when river course is wide shallow, comb multilayer fissure of displacement triangle disposition can be arranged when the narrower current in river course are deeper, fully comply with the nature in river, conveyance capacity is strong.

Description

A kind of comb culvert and its construction method
Technical field
The present invention relates to technical field of civil engineering, and in particular to a kind of comb culvert and its construction method.
Background technology
With the fast development of domestic economy, local road network is constantly encrypted, to meet laterally current and draining needs, laterally The construction of passage and culvert forces highway embankment highly to improve, not only land occupation resource too much, add project scale and Engineering difficulty, and bring many environmental problems, as Highways ' roadbed filling is suitably gathered materials on the spot, construction is largely fetched earth Afterwards, route both sides form the ditch of many interruptions, destroy pre-existing topography, landforms, influence highway and natural landscape along the line Harmony.These problems have caused the great attention of departments at different levels, and some special designing units have begun to transformation design reason Read, it is proposed that the design concept of Low-Filled Embankment Freeway scheme, this, which means that, there will be highly relatively low culvert to meet highway The transverse drainage requirement of low embankment.
The content of the invention
To solve the above problems, the invention provides a kind of comb culvert and its construction method, culvert can be reduced to river course Compression, reduce the interference to natural stream networks, avoid raising depth of fill because of culvert height limitation, reduce construction investment; River course can arrange comb individual layer when wide shallow, comb multilayer fissure of displacement triangle disposition can be arranged, filled when the narrower current in river course are deeper The nature in river point is complied with, conveyance capacity is strong.
To achieve the above object, the technical scheme taken of the present invention is:
A kind of comb culvert, the comb culvert are that the hole comb of single or multiple lift three rearranges, and each three hole comb is plate Shape reinforced concrete structure, is equipped with 3 circular ducts on every three hole combs, a diameter of 30cm in circular duct, outside duct Place lower plate and reserve thickness and be not less than 6cm, thickness is 6cm at the interval between two neighboring circular duct is minimum, three hole combs Both sides are respectively equipped with right side arc interface and left side arc interface, it is allowed to appropriate rotation, processing stronger to the adaptability of landform Shi Caiyong adjustable templates, three hole comb length can be prefabricated according to requirement of engineering progress, and splicing is convenient, right side arc interface Arc radius with left side arc interface is 39cm, a height of 3cm of arc.Wherein, the arrangement number and the number of plies of three hole combs, can To be adjusted according to traffic demand.
Preferably, three hole comb is reinforced concrete structure, and top and bottom are equipped with longitudinal reinforcement, and comb is radially Provided with ring muscle.
Preferably, the three holes comb duct is circle, it can be seen from geometry, when cross-sectional area is identical, and circular cross section Wetted perimeter with minimum, so it is optimal hydraulic cross-section.
Preferably, the whole height of duct peripheral board is 42cm, effectively reduces roadbed height, reduces and filled out above culvert The soil pressure of soil.
The construction method of above-mentioned comb culvert, comprises the following steps:
S1, left hand edge comb is put first, when second comb is installed, it should be noted that with the splicing between the former, and two Termination sets T-shaped water-stop sheet, prevents current from seam by destroying the globality of structure;Turn right successively setting, until reaching Drainpipe number demand, finally put right hand edge comb;
S2, required according to antiseepage, the arrangement of multilayer comb is carried out according to the requirement of step S1 arrangement, is needed between layers Water-stop sheet is set;
S3, comb joints of segment width are not more than 5mm, and flexible closure layer is formed with outside in pitch loose hemp fiber filling seam, Again with the malthoid looping seam of saturated with asphalt wide two layers of 15cm;
S4, backfilled, backfilling material uses the material of the good water permeability that can be fully compacted of approval.
Preferably, when width of subgrade demand needs the connection of more piece comb, the installation of comb tube coupling will make joint since downstream Towards river course upstream, all tube couplings should be laid according to correct axis and the gradient, and the interior of comb duct is should ensure that in laid processes Wall is neat, and should keep cleaning in duct.
The invention has the advantages that:
1. utilizing a kind of three highly relatively low hole combs, rectangular frame, without pouring basis, landfill and cutting depth are small, It is easy for construction;
2. utilizing a kind of three highly relatively low hole combs, solve existing single hole or diplopore culvert and highly asked in reduction roadbed The problem of top concrete thickness caused by inevitable span increase is increased with amount of reinforcement increase in topic, comb culvert can According to river width arrangement comb number, without increasing quantity of reinforcement to comb, while roadbed height is reduced, to reduce Engineering cost, and highway is more coordinated with environment;
3. structure of the present invention can avoid river course compress caused by depth rise, wash away the problems such as aggravation, to roadbed formed more Good protection.
4. structure of the present invention can arrange comb individual layer when river course is wide shallow, river course compared with narrow current compared with it is deep when can be more by comb Fault seam triangle disposition arrangement, fully complies with the nature in river, and conveyance capacity is strong.
Brief description of the drawings
Fig. 1 is the sectional view of comb in the present invention;
Fig. 2 is the sectional view of single comb in the present invention;
Fig. 3 is the sectional view of middle comb in the present invention;
Fig. 4 is the sectional view of edge comb in the present invention;
Fig. 5 is three hole comb elevation in the present invention;
Fig. 6 is three hole comb section arrangement of reinforcements in the present invention;
Fig. 7 is comb culvert section figure of the present invention;
In figure:1-circular duct, 2-duct peripheral board, 3-dividing plate, arc interface on the right side of 4-, 5-left side arc connect Mouthful, 6-circumferential reinforcement, 7-longitudinal reinforcement.
Embodiment
In order that objects and advantages of the present invention are more clearly understood, the present invention is carried out with reference to embodiments further Describe in detail.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to limit this hair It is bright.
As shown in Fig. 1-Fig. 7, the embodiments of the invention provide a kind of comb culvert, the comb culvert is single or multiple lift Three hole combs rearrange, and each three hole comb is tabular reinforced concrete structure, and 3 circular ports are equipped with every three hole combs Road 1, a diameter of 30cm in circular duct 1, duct periphery upper and lower plates reserve thickness and are not less than 6cm, two neighboring circular duct 1 it Between the minimum place's thickness in interval be 6cm, three hole comb both sides be respectively equipped with the right side of arc interface 4 and left side arc interface 5, it is allowed to Appropriate rotation, it is stronger to the adaptability of landform, adjustable template is used during processing, and three hole comb length can be according to engineering Need to carry out prefabricated, splicing is convenient, and the arc radius of right side arc interface 4 and left side arc interface 5 is 39cm, and arc is a height of 3cm.Wherein, the arrangement number and the number of plies of three hole combs, can be adjusted according to traffic demand.
Three hole comb is reinforced concrete structure, and top and bottom are equipped with longitudinal reinforcement 7, and comb is radially provided with ring To muscle 6.
The three holes comb duct is circle, and it can be seen from geometry, when cross-sectional area is identical, semi-circular has most Small wetted perimeter, so it is optimal hydraulic cross-section.
The whole height of duct peripheral board 2 is 42cm, effectively reduces roadbed height, reduces the soil to be banketed above culvert Pressure.
Comb culvert is arranged in a crossed manner with roadbed along river course direction;It is right to avoid that differential settlement longitudinally occurs along comb River course is flattened and compaction treatment, first layer comb of then arranging, according to streamflow width it needs to be determined that the number of comb.
The construction method of above-mentioned comb culvert, comprises the following steps:
S1, left hand edge comb is put first, when second comb is installed, it should be noted that with the splicing between the former, and two Termination sets T-shaped to set water-stop sheet, prevents current from seam by destroying the globality of structure;Turn right successively setting, until Reach drainpipe number demand, finally put right hand edge comb;
S2, according to water-carrying capacity demand, the arrangement of multilayer comb is carried out according to the requirement of step S1 arrangement, between layers Water-stop sheet need to be set;
S3, comb joints of segment width are not more than 5mm, and flexible closure layer is formed with outside in pitch loose hemp fiber filling seam, Again with the malthoid looping seam of saturated with asphalt wide two layers of 15cm;
S4, backfilled, backfilling material uses the material of the good water permeability that can be fully compacted of approval.
Wherein, when width of subgrade demand needs the connection of more piece comb, the installation of comb tube coupling will make joint court since downstream To river course upstream, all tube couplings should be laid according to correct axis and the gradient, and the inwall in comb duct is should ensure that in laid processes Neatly, and should keep cleaning in duct.
Originally be embodied in river course it is wide shallow when comb individual layer can be arranged, can be by comb multilayer when the narrower current in river course are deeper Fissure of displacement triangle disposition is arranged, and fully complies with the nature in river, and conveyance capacity is strong, wherein:
Arrangement form Individual layer It is double-deck Individual layer It is double-deck Individual layer It is double-deck
Comb radical/root 3 3 5 5 7 7
Flow m3/s 1.3637 1.4362 2.0589 2.3916 2.8950 3.2423
Described above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should It is considered as protection scope of the present invention.

Claims (5)

1. a kind of comb culvert, it is characterised in that the comb culvert is that the hole comb of single or multiple lift three rearranges, each three hole Comb is tabular reinforced concrete structure, and 3 circular ducts (1), the diameter of circular duct (1) are equipped with every three hole combs For 30cm, duct periphery upper and lower plates reserve thickness and be not less than 6cm, thickness at the interval minimum between two neighboring circular duct (1) Spend and be respectively equipped with right side arc interface (4) and left side arc interface (5), right side arc interface (4) for 6cm, three hole comb both sides Arc radius with left side arc interface (5) is 39cm, a height of 3cm of arc;The construction method of described comb culvert, including Following steps:
S1, left hand edge comb is put first, when second comb is installed, it should be noted that with the splicing between the former, and in two ends T-shaped water-stop sheet, setting of turning right successively are set, until reaching drainpipe number demand, finally put right hand edge comb;
S2, according to water-carrying capacity demand, the arrangement of multilayer comb is carried out according to the requirement of step S1 arrangement, needs to set between layers Put water-stop sheet;
S3, comb joints of segment width are not more than 5mm, form flexible closure layer with outside in pitch loose hemp fiber filling seam, then use The malthoid looping seam of saturated with asphalt wide two layers of 15cm;
S4, backfilled, backfilling material uses the material of the good water permeability that can be fully compacted of approval.
A kind of 2. comb culvert as claimed in claim 1, it is characterised in that three hole comb is reinforced concrete structure, Top and bottom are equipped with longitudinal reinforcement, and comb is radially provided with ring muscle.
3. a kind of comb culvert as claimed in claim 1, it is characterised in that the three holes comb duct is circle.
4. a kind of comb culvert as claimed in claim 1, it is characterised in that the whole height of duct peripheral board (2) is 42cm.
5. a kind of comb culvert as claimed in claim 1, it is characterised in that width of subgrade demand needs more piece comb to connect When, the installation of comb tube coupling will make joint should be according to correct axis and the gradient towards river course upstream, all tube couplings since downstream Lay, should ensure that the inwall in comb duct is neat in laid processes, and should keep cleaning in duct.
CN201610412842.7A 2016-08-02 2016-08-02 A kind of comb culvert and its construction method CN106012877B (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
CN201610412842.7A CN106012877B (en) 2016-08-02 2016-08-02 A kind of comb culvert and its construction method

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CN106012877A CN106012877A (en) 2016-10-12
CN106012877B true CN106012877B (en) 2018-03-02

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Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100454816B1 (en) * 2001-10-09 2004-11-12 박정규 structure for building tunnel under the ground
CN102605724A (en) * 2012-03-09 2012-07-25 刘山健 Prefabricated laminated steel concrete two-hole culvert
CN103556579B (en) * 2013-11-14 2016-01-06 天津市水利工程有限公司 A kind of comprehensive grouting pressurize adds the box culvert pushing construction method of pipe curtain supporting

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