CN110468744A - A kind of channel bridge reinforced construction method - Google Patents

A kind of channel bridge reinforced construction method Download PDF

Info

Publication number
CN110468744A
CN110468744A CN201910788096.5A CN201910788096A CN110468744A CN 110468744 A CN110468744 A CN 110468744A CN 201910788096 A CN201910788096 A CN 201910788096A CN 110468744 A CN110468744 A CN 110468744A
Authority
CN
China
Prior art keywords
plate
pours
channel
template
bridge
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201910788096.5A
Other languages
Chinese (zh)
Other versions
CN110468744B (en
Inventor
胡兴安
朱毅军
邢涛
张君臣
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Aok-Real Detection Technology Development Co Ltd
Original Assignee
Beijing Aok-Real Detection Technology Development Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Beijing Aok-Real Detection Technology Development Co Ltd filed Critical Beijing Aok-Real Detection Technology Development Co Ltd
Priority to CN201910788096.5A priority Critical patent/CN110468744B/en
Publication of CN110468744A publication Critical patent/CN110468744A/en
Application granted granted Critical
Publication of CN110468744B publication Critical patent/CN110468744B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01DCONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D22/00Methods or apparatus for repairing or strengthening existing bridges ; Methods or apparatus for dismantling bridges

Abstract

The present invention relates to a kind of channel bridge reinforced construction method, including operation surface treatment, pour that bottom plate, the binding of unit reinforcing bar, unit rack is built, unit template is installed, configure concrete material, pressure casting concrete, mud jacking and concrete curing;The construction of channel bridge roof reinforcement is carried out by continuous assembled sectional type mould bases and lateral pressure casting concrete, reinforcing maintenance can be carried out to the channel bridge top plate of deformation, fracture in the case where not changing original crossstructure, bridge floor is restored to the original state, the bearing capacity of original veneer pontic is enhanced.The invention short construction period, construction cost is low, and Construction quality and safety is reliable.

Description

A kind of channel bridge reinforced construction method
Technical field
The present invention relates to bridge technology fields, more particularly, to a kind of channel bridge reinforced construction method.
Background technique
With the continuous prosperity of traffic, in order to reduce the congestion of traffic, occur many channel bridges on urban road, by In the swift and violent increase of the volume of traffic, large-tonnage vehicle is more and more, adds some traffic accidents and natural cause, causes some logical There is damage deformation in bridge bridge floor, leads to the out-of-flatness of bridge floor, so that bridge structure entirety ductile ability and bearing capacity are reduced, The durability for having seriously affected channel bridge structure, there are engineering accident hidden danger.
In the case of above, it is necessary to be repaired to bridge floor, carry out the adjustment of bridge floor, existing channel bridge maintenance is logical It is often maintenance repairing to be carried out to the channel bridge face of fracture or damage, or replace channel bridge top plate, it is necessary in maintenance process It to close a road to traffic to channel pontic, and the program repaired is comparatively laborious, needs to expend a large amount of manpower and material resources, construction time ratio Longer, prolonged road closure also brings inconvenience to normal traffic.
Summary of the invention
The object of the present invention is to provide a kind of channel bridge reinforced construction methods, are poured by zonal cooling assembly mould bases and pressure Build the molding that self-compacting concrete carries out channel bridge bottom plate, side wall and top plate.The channel bridge reinforced construction method is easy, the construction time It is short, reinforcing maintenance can be carried out to the channel bridge of deformation, fracture in the case where not changing pontic, bridge floor is restored to the original state, protected Demonstrate,prove the bearing capacity of pontic.
Object of the present invention is to what is be achieved by the following technical programs:
A kind of channel bridge reinforced construction method, comprising the following steps:
S110: operation surface treatment;Bottom plate, side wall and the top plate dabbing of channel bridge, using high pressure water cleaning;
S120: it base plate steel bar binding and pours;
S130: unit reinforcing bar binding;Divide N sections for the length of channel bridge, along its length side binding first segment side wall and Roof steel bar;
S140: unit rack is built;Vertical first segment all round victory bracket is propped up below the top plate of first segment, pours work as pressure Make the basis of platform and later period unit template bracket;
S150: unit template installation: two side walls of channel bridge and the vertical closing template of top plate branch, closing template include side wall template and Roof plate template, the top of the two side wall templates are also reserved respectively and laterally pour mouth, and roof plate template is laterally reserved multiple close to top The top plate of plate pours mouth and grout outlet, the reserved grout pipe for passing perpendicularly through roof plate template and extend to top plate in the middle part of roof plate template;
S160 configures concrete material;Concrete material is mixed, concrete material by weight, including fine sand 10-70, rubble 5- 15, cement 40-70, water-reducing agent 1-3, land plaster 5-8, early strength agent 1-2, sustained release agent 3-8, defoaming powder 3-5, composite fibre 3-5, water 40-60;
S170: pressure casting concrete;1) side wall pours: respectively from side to pouring mouth while symmetrically pouring two side walls, coagulation Soil pours to after laterally pouring mouth closure and laterally pours mouth, then pours mouth from the top plate at roof plate template both ends while symmetrically pouring, Until the grout outlet at roof plate template both ends flows out concrete, pouring for two side walls is completed;2) top plate pours: from roof plate template The top plate at middle part pours mouth and pours top plate to two sides respectively, until concrete is flowed out from corresponding grout outlet, finally from top plate mould The top plate of plate two sides pours mouth while symmetrically pouring, until corresponding grout outlet flows out concrete, completes pouring for top plate;
S180: mud jacking;Slip casing by pressure is carried out from the lower ending opening of grout pipe;
S190: repeating the construction process of step S130 to S180, constructs in order remaining each section, until entire channel bridge pours It completes;
S200: concrete curing;After entire channel bridge pours completion 12 hours, conserves to face is poured, persistently support by spraying Shield 28-35 days.
Above-mentioned channel bridge reinforced construction method, wherein in the step S160 concrete material by weight, fine sand 30, rubble 10, cement 50, water-reducing agent 12, land plaster 6, early strength agent 2, sustained release agent 4, defoaming powder 4, composite fibre 3, water 50.
Above-mentioned channel bridge reinforced construction method, wherein the granularity of the fine sand is 150-200 mesh, and ballast grain sizes are less than 10mm。
Above-mentioned channel bridge reinforced construction method, wherein the long 8-15mm of composite fibre.
Above-mentioned channel bridge reinforced construction method, wherein in the step S150, seam crossing is embedded when unit template is installed Sandwich rubber band is blocked, and seam is smooth.
Above-mentioned channel bridge reinforced construction method, wherein in the step S170, pipe is poured when top plate pours from top plate Mouth insertion is poured, pours situation from pouring mouth from neighbouring top plate, is slowly pulled out outward when pouring and is poured pipe to top plate and pour Mouthful.
Above-mentioned channel bridge reinforced construction method, wherein in the step S170, pressure casting concrete slump is 550~600mm.
Above-mentioned channel bridge reinforced construction method, wherein the mud jacking in step S180 uses cement grout, and cement grout is pressed Parts by weight meter, including cement 40-100, flyash, 200-300, bentonite 40-100, fine sand 800-1100, water 200- 300, additive 0-40.
Above-mentioned channel bridge reinforced construction method, wherein cement grout by weight, including cement 50, flyash, 150, bentonite 60, fine sand 900, water 240, additive 15.
Above-mentioned channel bridge reinforced construction method, wherein the pressure of the mud jacking be 0.2-0.5Mpa, pressing time 8~ 10 seconds.
Advantageous effects of the invention are as follows:
The concrete material rapid-drying properties that the present invention configures are good, short construction period, strong operability, the noise phase generated in work progress To smaller, construction speed is fast.
Channel bridge surface construction maintenance relative to common construction method is compared, and the construction method project cost is lower, again Strengthening construction requirement can be reached, it is time saving and energy saving.
Every pressure for completing a unit end template pours in construction, then props up vertical next unit end template, and sequence pressure is poured Operation is built, tissue orderly, securely and reliably, greatly improves the durability of channel bridge, prolongs its service life.
Detailed description of the invention
Fig. 1 is flow chart of the invention;
Fig. 2 is that pressure of the embodiment of the present invention pours mode schematic cross-section;
Fig. 3 is that pressure of the embodiment of the present invention pours mode floor map.
Wherein, 1, bottom plate;2, side wall;3, top plate;4, all round victory bracket;5, side wall template;51, mouth is laterally poured;6, it pushes up Template die plate;61, top plate pours mouth;62, grout outlet;7, grout pipe;
A, into lane;B, road surface central partition;C, go out lane;D, first segment pressure pours;E, the side that multistage pressure pours To.
Specific embodiment
Below in conjunction with attached drawing, invention is further described in detail.
As shown in Figure 1-3, Fig. 1 is flow chart of the invention;Fig. 2 is that pressure of the embodiment of the present invention pours the signal of mode section Figure;Fig. 3 is that pressure of the embodiment of the present invention pours mode floor map.
In the present embodiment, channel bridge overall length 120m, wide 14*2m, clear span 6.9m.
As shown in figure 3, channel bridge centered on the central partition B of road surface, is divided into lane A and lane C out, the present embodiment When pressure pours channel bridge top plate, first it is segmented successively close to the road surface side central partition B into lane from into lane A Another lateral pressure of A pours, i.e. the direction E that pours of multistage pressure, until entirely pouring completion into the pressure of lane A top plate;Again Lane C is poured out with same method pressure, until the pressure of entire lane C top plate out pours completion.
Channel bridge reinforced construction method, comprising the following steps:
S110: operation surface treatment;3 dabbing of bottom plate 1, side wall 2 and top plate of channel bridge, using high pressure water cleaning;
S120: 1 reinforcing bar of bottom plate binds and pours;
S130: unit reinforcing bar binding;Divide N sections for the length of channel bridge, the length of the present embodiment channel bridge divides 30 sections, along its length 3 reinforcing bar of side wall 2 and top plate of direction side binding first segment;The unit mould bases length of every section of construction is 4m, the width of unit mould bases For clear span 6.9m;
S140: unit rack is built;Vertical first segment all round victory bracket 4 is propped up below the top plate of first segment, pours work as pressure Make the basis of platform and later period unit template bracket;
S150: unit template installation: two side walls 2 of channel bridge and 3, top plate vertical closing templates, closing template includes side wall template 5 and roof plate template 6, the top of the two side wall templates 5 is also reserved respectively and laterally pours mouth 51, and 6 side of roof plate template is to reserved more The top plate of a close top plate 3 pours mouth 61 and grout outlet 62, reserves in the middle part of roof plate template 6 and passes perpendicularly through roof plate template 6 and extend To the grout pipe 7 of top plate 3;
S160 configures concrete material;Concrete material be mixed, concrete material by weight, fine sand 30kg, 10 kg of rubble, Cement 50kg, 12 kg of water-reducing agent, land plaster 6kg, early strength agent 2kg, sustained release agent 4kg, defoaming powder 4kg, composite fibre 3kg, water 50kg;
The granularity of preferred sulphate aluminium cement in the present embodiment, the long 10mm of composite fibre, fine sand is 170 mesh, and ballast grain sizes are small In 20mm, water-reducing agent is naphthalene sulfonic acids based water reducer, and defoaming agent is organic silicon defoamer.
S170: pressure casting concrete;1) side wall pours: respectively from side to pouring mouth 51 while symmetrically pouring two sides Wall 2, concreting closure to after laterally pouring mouth 51 laterally pours mouth 51, then pours mouth from the top plate at 6 both ends of roof plate template 61 symmetrically pour simultaneously, until the grout outlet 62 at 6 both ends of roof plate template flows out concrete, complete pouring for two side walls 2, top casting The height for building mouth 61 is lower than the height of grout outlet 62;2) top plate pours: pouring mouth 61 from the top plate at the middle part of roof plate template 6 and distinguishes Top plate is poured to two sides, until reserving concrete from corresponding grout outlet 62, finally pours mouth from the top plate of 6 two sides of roof plate template 61 symmetrically pour simultaneously, until corresponding grout outlet flows out concrete, complete pouring for top plate 61;
As shown in Fig. 2, laterally pouring mouth 51 for 400*300mm, along channel bridge clear span reserved 4 what side wall 2 was reserved in embodiment A top plate divided equally pours 61,6, the mouth grout outlets 62 divided equally, and top plate pours 61 diameter 80mm of mouth, 62 diameter 10mm of grout outlet.
When top plate 3 pours, 61 pressure casting concrete of mouth first is poured from two, the middle part of roof plate template 6 top plate, directly Concrete is flowed out to from corresponding grout outlet 62, finally mouth 61 is poured from the top plate of 6 two sides of roof plate template while symmetrically pouring, directly Concrete is flowed out to corresponding grout outlet 62.
In the present embodiment, pipe is poured when pouring top plate from top plate and pours 3.5 meters of the insertion of mouth 61, is poured by adjacent top plate Mouthfuls 61 observations pour situation, slowly pull out outward when pouring and pour pipe to top plate and pour mouth 61.
Pressure casting concrete slump in the present embodiment is 560mm.Guarantee the rapid-curing cutback effect and construction matter of concrete Amount.
S180: mud jacking;Slip casing by pressure is carried out from the lower ending opening of grout pipe;The pressure of mud jacking is 0.3Mpa, when pressurization Between 8 seconds, pressure such as increases suddenly during slip casting, answers shutdown inspection, eliminates failure and carries out operation again.
In the present embodiment, cement grout by weight, including cement 50kg, flyash 150kg, bentonite 60kg, carefully Sand 900kg, water 240kg, additive 15kg.
S190: repeating the construction process of step S130 to S180, constructs in order remaining each section, until entire channel bridge Pour completion;
S200: concrete curing;After entire channel bridge pours completion 12 hours, conserves to face is poured, persistently support by spraying Shield 28 days.
Seam crossing is embedded sandwich rubber band and is blocked when unit template is installed, and seam is smooth.
The embodiment of present embodiment is presently preferred embodiments of the present invention, not limits protection of the invention according to this Range, therefore: the equivalence changes that all structures under this invention, shape, principle are done, should all be covered by protection scope of the present invention it It is interior.

Claims (10)

1. a kind of channel bridge reinforced construction method, which comprises the following steps:
S110: operation surface treatment;Bottom plate, side wall and the top plate dabbing of channel bridge, using high pressure water cleaning;
S120: it base plate steel bar binding and pours;
S130: unit reinforcing bar binding;Divide N sections for the length of channel bridge, along its length side binding first segment side wall and Roof steel bar;
S140: unit rack is built;Vertical first segment all round victory bracket is propped up below the top plate of first segment, pours work as pressure Make the basis of platform and later period unit template bracket;
S150: unit template installation: two side walls of channel bridge and the vertical closing template of top plate branch, the closing template includes side wall mould Plate and roof plate template, the top of the two side wall templates are also reserved respectively and laterally pour mouth, and roof plate template laterally reserves multiple lean on The top plate of nearly top plate pours mouth and grout outlet, the reserved grouting for passing perpendicularly through roof plate template and extend to top plate in the middle part of roof plate template Pipe;
S160 configures concrete material;Concrete material is mixed, concrete material by weight, including fine sand 10-70, rubble 5- 15, cement 40-70, water-reducing agent 1-3, land plaster 5-8, early strength agent 1-2, sustained release agent 3-8, defoaming powder 3-5, composite fibre 3-5, water 40-60;
S170: pressure casting concrete;1) side wall pours: respectively from side to pouring mouth while symmetrically pouring two side walls, coagulation Soil pours to after laterally pouring mouth closure and laterally pours mouth, then pours mouth from the top plate at roof plate template both ends while symmetrically pouring, Until the grout outlet at roof plate template both ends flows out concrete, pouring for two side walls is completed;2) top plate pours: from roof plate template The top plate at middle part pours mouth and pours top plate to two sides respectively, until concrete is flowed out from corresponding grout outlet, finally from top plate mould The top plate of plate two sides pours mouth while symmetrically pouring, until corresponding grout outlet flows out concrete, completes pouring for top plate;
S180: mud jacking;Slip casing by pressure is carried out from the lower ending opening of grout pipe;
S190: repeating the construction process of step S130 to S180, constructs in order remaining each section, until entire channel bridge pours It completes;
S200: concrete curing;After entire channel bridge pours completion 12 hours, conserves to face is poured, persistently support by spraying Shield 28-35 days.
2. bridge reinforced construction method in channel as described in claim 1, which is characterized in that concrete material is pressed in the step S160 Parts by weight meter, fine sand 30, rubble 10, cement 50, water-reducing agent 12, land plaster 6, early strength agent 2, sustained release agent 4, defoaming powder 4, compound fibre Tie up 3, water 50.
3. bridge reinforced construction method in channel as claimed in claim 2, which is characterized in that the granularity of the fine sand is 150-200 Mesh, ballast grain sizes are less than 10mm.
4. bridge reinforced construction method in channel as claimed in claim 2, which is characterized in that the long 8-15mm of composite fibre.
5. bridge reinforced construction method in channel as described in claim 1, which is characterized in that in the step S150, unit template Seam crossing is embedded sandwich rubber band and is blocked when installation, and seam is smooth.
6. bridge reinforced construction method in channel as described in claim 1, which is characterized in that in the step S170, top plate is poured Pipe is poured when building and pours mouth insertion from top plate, is poured situation from pouring mouth from neighbouring top plate, is slowly pulled out outward when pouring It pours pipe to top plate and pours mouth.
7. bridge reinforced construction method in channel as described in claim 1, which is characterized in that in the step S170, pressure is poured Building slump is 550~600mm.
8. bridge reinforced construction method in channel as described in claim 1, which is characterized in that the mud jacking in step S180 uses cement Slurries, cement grout by weight, including cement 40-100, flyash, 200-300, bentonite 40-100, fine sand 800-1100, water 200-300, additive 0-40.
9. bridge reinforced construction method in channel as claimed in claim 8, it is characterised in that: cement grout by weight, including Cement 50, flyash, 150, bentonite 60, fine sand 900, water 240, additive 15.
10. bridge reinforced construction method in channel as described in claim 1, which is characterized in that the pressure of the mud jacking is 0.2- 0.5Mpa, pressing time 8~10 seconds.
CN201910788096.5A 2019-08-26 2019-08-26 Channel bridge reinforcement construction method Active CN110468744B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910788096.5A CN110468744B (en) 2019-08-26 2019-08-26 Channel bridge reinforcement construction method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910788096.5A CN110468744B (en) 2019-08-26 2019-08-26 Channel bridge reinforcement construction method

Publications (2)

Publication Number Publication Date
CN110468744A true CN110468744A (en) 2019-11-19
CN110468744B CN110468744B (en) 2020-12-22

Family

ID=68512117

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910788096.5A Active CN110468744B (en) 2019-08-26 2019-08-26 Channel bridge reinforcement construction method

Country Status (1)

Country Link
CN (1) CN110468744B (en)

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040062609A1 (en) * 2001-10-25 2004-04-01 Werner Heierli Hybrid arched overfilled structure
CN101280550A (en) * 2008-05-09 2008-10-08 中铁六局集团有限公司 Method for top lifting and heightening frame bridge
CN201588172U (en) * 2010-01-21 2010-09-22 中铁二十局集团有限公司 Integral single-tower non-dorsal-cord cable-stayed-bridge king tower lifting template
CN103195089A (en) * 2013-04-09 2013-07-10 重庆中设工程设计股份有限公司 Method for improving existing underground passage clearance on basis of grouting reinforcement
CN105113416A (en) * 2015-09-14 2015-12-02 中铁六局集团天津铁路建设有限公司 Construction method for frame bridge main body adjacent to existing buildings
KR101772941B1 (en) * 2016-08-18 2017-09-12 전종환 Precast structure using composite pc wall and method for constructing this same
CN107237350A (en) * 2017-06-30 2017-10-10 上海建工集团股份有限公司 The pushing tow correction support replacement system and method for prefabricated assembled underpass structure
CN107326807A (en) * 2017-07-13 2017-11-07 浙江永联建设工程股份有限公司 A kind of construction technology of frame core-tube system
CN108005117A (en) * 2017-12-29 2018-05-08 上海建工集团股份有限公司 A kind of underpass side wall pours rack and its construction method
CN108661094A (en) * 2017-04-01 2018-10-16 周兆弟 Ruggedized construction for underpass
CN109111162A (en) * 2018-11-05 2019-01-01 天门黄滩码头新型建材有限公司 A kind of water-tight concrete
CN110067206A (en) * 2019-05-16 2019-07-30 成都建工路桥建设有限公司 A kind of ovum type underpass bridge construction method

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040062609A1 (en) * 2001-10-25 2004-04-01 Werner Heierli Hybrid arched overfilled structure
CN101280550A (en) * 2008-05-09 2008-10-08 中铁六局集团有限公司 Method for top lifting and heightening frame bridge
CN201588172U (en) * 2010-01-21 2010-09-22 中铁二十局集团有限公司 Integral single-tower non-dorsal-cord cable-stayed-bridge king tower lifting template
CN103195089A (en) * 2013-04-09 2013-07-10 重庆中设工程设计股份有限公司 Method for improving existing underground passage clearance on basis of grouting reinforcement
CN105113416A (en) * 2015-09-14 2015-12-02 中铁六局集团天津铁路建设有限公司 Construction method for frame bridge main body adjacent to existing buildings
KR101772941B1 (en) * 2016-08-18 2017-09-12 전종환 Precast structure using composite pc wall and method for constructing this same
CN108661094A (en) * 2017-04-01 2018-10-16 周兆弟 Ruggedized construction for underpass
CN107237350A (en) * 2017-06-30 2017-10-10 上海建工集团股份有限公司 The pushing tow correction support replacement system and method for prefabricated assembled underpass structure
CN107326807A (en) * 2017-07-13 2017-11-07 浙江永联建设工程股份有限公司 A kind of construction technology of frame core-tube system
CN108005117A (en) * 2017-12-29 2018-05-08 上海建工集团股份有限公司 A kind of underpass side wall pours rack and its construction method
CN109111162A (en) * 2018-11-05 2019-01-01 天门黄滩码头新型建材有限公司 A kind of water-tight concrete
CN110067206A (en) * 2019-05-16 2019-07-30 成都建工路桥建设有限公司 A kind of ovum type underpass bridge construction method

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
HANWENFENG0000: "https://wenku.baidu.com/view/933eab0b02d8ce2f0066f5335a8102d276a26191.html,百度文库,hanwenfeng0000,全文", 《百度文库》 *
ZOUHAIJUN007: "https://wenku.baidu.com/view/386f2e7a905f804d2b160b4e767f5acfa0c78351.html,百度文库,zouhaijun007,全文", 《百度文库》 *

Also Published As

Publication number Publication date
CN110468744B (en) 2020-12-22

Similar Documents

Publication Publication Date Title
CN103898831B (en) A kind of precast splice type arch rib of ultra-high performance concrete and fabrication and installation method thereof
CN102587296B (en) Self-balancing external prestressing strengthening method for bridge structure
CN103352400B (en) Prefabricated embedded tracks plate
CN106245674A (en) Hollow wallboard mixes prefabricated assembled pipe gallery and construction method thereof
CN110439137A (en) Prefabricated panel, wall and prefabricated panel production method, precast wall body construction method
CN108951399A (en) A kind of Single-box multi-chamber box beam bridge and its construction method
CN103276651A (en) No-cutting-seam cement concrete pavement structure and construction method thereof
CN101691742B (en) Construction method for back cable-balancing single-side cantilever concreted beam bodies of slant-legged rigid frame bridges
CN109281249A (en) A kind of UHPC-NC overlapping trestle deck structrue and its construction method
KR100898945B1 (en) Concrete arch bridge having water flow path and construction method thereof
CN110130934A (en) The construction method of city tunnel bifurcation mouth with box top board structure
CN106014456A (en) Double-layer lining special quasi-circular sectional mining method tunnel structure and construction method thereof
CN207660136U (en) A kind of assembly concrete frame-shear wall keyway connection structure
CN105625201A (en) Method for reinforcing culvert through inflatable internal mold and self-compacting concrete
CN110468744A (en) A kind of channel bridge reinforced construction method
CN105064500A (en) Balcony beam slab inner side filling wall body and main body structure integral casting construction method
CN101892637A (en) Ring type anchor rod locking method for repairing cracks on abutment side wall of highway bridge abutment
CN205224332U (en) Prefabricated wall body and prefabricated wallboard
CN110318776B (en) Tunnel construction method based on inverted arch and inverted arch filling layer replacing steel-concrete composite structure
CN209114299U (en) A kind of Single-box multi-chamber box beam bridge
CN111608093A (en) Shear-resistant reinforcing method for hollow plate beam based on high-performance composite material
CN208151833U (en) A kind of construction of novel RC-masonry combination arch bridge
CN109137721A (en) A kind of prefabricated assembled suspension bridge bridge pier
CN110005429A (en) The box top board structure of city tunnel bifurcation mouth
CN205714221U (en) A kind of Tunnel Second Lining vault is owed to dig place's teeming building structure

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant