CN110004959A - Concrete cofferdam rapid constructing method and template under circumstance of flowing water - Google Patents
Concrete cofferdam rapid constructing method and template under circumstance of flowing water Download PDFInfo
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- CN110004959A CN110004959A CN201910344432.7A CN201910344432A CN110004959A CN 110004959 A CN110004959 A CN 110004959A CN 201910344432 A CN201910344432 A CN 201910344432A CN 110004959 A CN110004959 A CN 110004959A
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B8/00—Details of barrages or weirs ; Energy dissipating devices carried by lock or dry-dock gates
- E02B8/06—Spillways; Devices for dissipation of energy, e.g. for reducing eddies also for lock or dry-dock gates
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B9/00—Water-power plants; Layout, construction or equipment, methods of, or apparatus for, making same
- E02B9/02—Water-ways
- E02B9/06—Pressure galleries or pressure conduits; Galleries specially adapted to house pressure conduits; Means specially adapted for use therewith, e.g. housings, valves, gates
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
- E02D15/06—Placing concrete under water
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/02—Restraining of open water
- E02D19/04—Restraining of open water by coffer-dams, e.g. made of sheet piles
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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Abstract
The present invention provides concrete cofferdam rapid constructing method and template under a kind of circumstance of flowing water, and template processing processes underwater construction template according to the cross-sectional shape of water conservancy diversion hole outlet open channel；Bailey bridge (1), which is laid, in the top side of open channel pouring construction is used as material feeding and auxiliary construction platform；It is in segmental hoisting template to open channel and fixed；The arrangement of hopper and conduit；Underwater concreting；Concrete cofferdam rapid construction under circumstance of flowing water is realized by above step.Template includes two pieces of panels positioned opposite, and truss structure is arranged between panel, and the both ends of panel and open channel side slope are equipped with gap, and flexible block pulp body is equipped between the end positions of panel, two pieces of panels；The equalizing pipe of connection upstream and downstream is additionally provided in template.It is difficult to lift the technical problem of corresponding construction equipment the present invention overcomes diversion tunnel exit.
Description
Technical field
The present invention relates to the cofferdam construction field of hydraulic and hydroelectric engineering, concrete cofferdam is fast under especially a kind of circumstance of flowing water
Fast construction method and template.
Background technique
During the narrow valley superelevation face dam Hydropower Station Construction of certain deep & thick silt matter deep covering layer, need in diversion tunnel
Outlet open channel arranges that annual water-retaining cofferdam is constructed to carry out reconstruction of diversion tunnel into very flood discharging tunnel.
According to previous similar engineering construction experience, when reconstruction of diversion tunnel is constructed at permanent hydraulic tunnel, water-retaining cofferdam one
As using outside former water conservancy diversion hole outlet reconstruction construction area range fill earth rock cofferdam, and will be at earth rock cofferdam upstream face reinforcing
Reason, wait reconstruct construction after earth rock cofferdam is removed again.In this project, power station power generation and reconstruction when reconstruction construction
Very flood discharge hole outlet afterwards is located at exit of hydropower plant's tailwater opposite downstream side less than the deep hole flood discharge that 50m, abutting have come into operation
Hole outlet chooses bank downstream, is had the following problems using earth rock cofferdam construction: (1) occupancy river area is big, be easy to cause river stifled
Plug and river water harmony height influence tail water power output, reduce generating efficiency；(2) lower level outlet need to be let out for a long time very during flood discharging tunnel reconstruction
Flood, the high water of wave is anxious, and earth rock cofferdam not can guarantee very flood discharging tunnel reconstruction construction safety there are larger security risk；(3) Cong Tushi
Cofferdam is filled to cofferdam upstream face and is reinforced, to the end cofferdam demolition, long construction period, and construction cost is high.So conventional native stone
Cofferdam is unfavorable for the construction of this engineering.
Concrete cofferdam construction is carried out using conventional method, but the cross dimensions of water conservancy diversion hole outlet open channel is big (wide × a height of
13 × 15m), outlet two sides diversion canal top concrete width only 1m, and since construction road is current inconvenient, difficulty of construction compared with
Greatly, specifically: diversion tunnel exit is difficult to set up the bridge with enough bearing capacities, and the hanging device of large-tonnage is not easy to arrange,
In addition water flow is surged larger, to construct in river channels, template pressure-bearing is larger, and template upstream and downstream lateral water pressure is different,
It is influenced by water wave and water pressure unevenness, the easily damaged deformation of template.
Chinese patent literature CN102409688A describes a kind of construction method of steel sheet-pile cofferdam, construction method include with
Lower step: (1) preparation of construction works；(2) surveying setting-out: according to the center of the design size in cofferdam and cushion cap, measurement is put
Line determines four angle points in cofferdam, and sets the control point that guide pile is positioned as steel sheet-pile cofferdam in corner point；(3) to by leading
The inner support system construction that beam, waling, inner support, linking beam and joist form；(4) after waling inner support first welds assembled whole decentralization
Carry out inserting piling steel sheet pile construction；(5) mud is inhaled in cofferdam；(6) cofferdam back cover；(7) draw water clear base in cofferdam；(8) cofferdam demolition.But it should
Scheme is difficult in the operating condition that road lifting is not easy the application.
Summary of the invention
Technical problem to be solved by the invention is to provide concrete cofferdam rapid constructing method under a kind of circumstance of flowing water and
Template, can overcome in the prior art earth rock cofferdam occupy that river area is big, steel sheet-pile cofferdam is because having inconvenient traffic, lift and be not easy
Difficulty can overcome upstream and downstream lateral water pressure difference to the pressure change of template in the preferred scheme.
In order to solve the above technical problems, the technical scheme adopted by the invention is that: concrete cofferdam under a kind of circumstance of flowing water
Rapid constructing method, comprising the following steps:
S1, template processing, process underwater construction template according to the cross-sectional shape of water conservancy diversion hole outlet open channel；
S2, open channel pouring construction top side lay Bailey bridge as material feeding and auxiliary construction platform；
It is in S3, segmental hoisting template to open channel and fixed；
The arrangement of S4, hopper and conduit；
S5, underwater concreting；
Concrete cofferdam rapid construction under circumstance of flowing water is realized by above step.
In preferred scheme, the block stone of open channel bottom plate is cleared up before construction；
Truck crane is arranged in Bailey bridge to clear up for block stone, when block stone is smaller, is removed block stone to placement in water by diver
Hanging basket in, block stone in hanging basket is hung on the dump truck being parked on highway by truck crane；It, will by diver when block stone is larger
Wirerope is bundled on block stone, and block stone is removed construction area by truck crane.
In preferred scheme, the structure of the underwater construction template are as follows:
It includes two pieces of panels positioned opposite, and truss structure, back side setting and the fixed company of panel of panel are arranged between panel
The longitudinal waling and lateral waling connect；
The both ends of panel and open channel side slope are equipped with gap, and flexible block pulp body is equipped between the end positions of panel, two pieces of panels；
The truss structure includes the more bars perpendicular to panel, and the both ends of bar and panel, longitudinal waling or lateral waling are solid
Fixed connection, is additionally provided with more inclined bars, the end of inclined bar is fixedly connected with the rod end head perpendicular to panel.
In preferred scheme, be equipped with clamping plate in the end positions of panel, bolt pass through clamping plate, panel and flexible block pulp body with
Nut is fixedly connected；The flexible block pulp body is canvas or rubberized fabric；
It is additionally provided with the equalizing pipe of connection upstream and downstream in template, gate valve is equipped on equalizing pipe, equalizing pipe is as upstream and downstream
Water stream channel.
In preferred scheme, eliminator plate flexible is additionally provided in the end positions of panel.
In preferred scheme, the template is divided into multistage from top to bottom, the segmental hoisting in hoisting process；
It is equipped with vertical guide pipe in the position that each section of template is in contact, positioned at the mutual fitting of different sections of guide pipes.
In preferred scheme, the open channel side slope in the upstream side of template is equipped with many places positioning wire rope, positioning wire rope with
Template connection, realizes Template Location.
A kind of template for concrete cofferdam rapid constructing method under above-mentioned circumstance of flowing water, it includes positioned opposite
Truss structure is arranged between panel for two pieces of panels, and the longitudinal waling and transverse direction that the back side setting of panel is fixedly connected with panel enclose
Jail；
The both ends of panel and open channel side slope are equipped with gap, and flexible block pulp body is equipped between the end positions of panel, two pieces of panels；
The truss structure includes the more bars perpendicular to panel, and the both ends of bar and panel, longitudinal waling or lateral waling are solid
Fixed connection, is additionally provided with more inclined bars, the end of inclined bar is fixedly connected with the rod end head perpendicular to panel；
It is additionally provided with the equalizing pipe of connection upstream and downstream in template, gate valve is equipped on equalizing pipe, equalizing pipe is as upstream and downstream
Water stream channel.
In preferred scheme, eliminator plate flexible is additionally provided in the end positions of panel；
In preferred scheme, the template is divided into multistage from top to bottom, the segmental hoisting in hoisting process；
It is equipped with vertical guide pipe in the position that each section of template is in contact, positioned at the mutual fitting of different sections of guide pipes.
Concrete cofferdam rapid constructing method and template under a kind of circumstance of flowing water provided by the invention, by using in water conservancy diversion
Bailey bridge is set above the open channel of hole, and the scheme of the underwater steel truss template of segmental hoisting overcomes diversion tunnel exit and is difficult to lift
Corresponding construction equipment, it is also difficult to lift the technical problem of integral mold plate.In the preferred scheme, overcome by the equalizing pipe of setting
The upstream and downstream lateral water pressure different influence to template.The flexible block pulp body of setting can ensure that concrete cofferdam is being constructed
Sealing characteristics in the process.The eliminator plate of setting can further increase block-water effect.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples:
Fig. 1 is the elevational view of water conservancy diversion hole outlet open channel construction site of the present invention.
Fig. 2 is the construction site top view of water conservancy diversion hole outlet open channel in the present invention.
Fig. 3 is the top view of template in the present invention.
Fig. 4 is the viewgraph of cross-section of template in the present invention.
Fig. 5 is the partial enlargement diagram in Fig. 3 at A.
Fig. 6 is the partial enlargement diagram of form stop in the present invention.
In figure: Bailey bridge 1, diversion tunnel 2, upper former 3, panel 31, truss structure 32, longitudinal waling 33, lateral waling
34, flexible block pulp body 35, eliminator plate 36, clamping plate 37, lower template 4, open channel side slope 5, open channel bottom plate 6, boom hoisting 7 above leads
To pipe 8, lower guide pipe 9, positioning wire rope 10, equalizing pipe 11, gate valve 12.
Specific embodiment
Embodiment 1:
As shown in fig. 1, the cross dimensions of diversion tunnel 2 is 13 × 15m, wide × high, gateway opening type.Water conservancy diversion hole outlet is trapezoidal opens
Open form open channel, due to landform, cofferdam construction difficulty is larger.Earth rock cofferdam is big in the presence of river area is occupied, and easily causes river
Blocking and water level harmony are high, and construction cost investment is big, the problems such as long in time limit.And concrete cofferdam is used then to set in the presence of construction
It applies, lifting is difficult, such as road is inconvenient, and large automobile crane is difficult to reach construction site, and design discharge is at this
1960m3/ s, water pressure difference is larger between upstream and downstream, and difficulty of construction is higher.
To overcome above-mentioned difficulties such as Fig. 1, in 2, concrete cofferdam rapid constructing method under a kind of circumstance of flowing water, including it is following
Step:
S1, template processing, process underwater construction template according to the cross-sectional shape of water conservancy diversion hole outlet open channel；
In preferred scheme such as Fig. 3 ~ 6, the structure of the underwater construction template are as follows:
It includes two pieces of panels 31 positioned opposite, and truss structure 32, the back side setting of panel 31 and face are arranged between panel 31
The longitudinal waling 33 and lateral waling 34 that plate 31 is fixedly connected；
In Fig. 3,4, the truss structure 32 includes the more bars perpendicular to panel, the both ends of bar and panel 31, Zong Xiangwei
Jail 33 or lateral waling 34 are fixedly connected, and are additionally provided with more inclined bars, the end of inclined bar and the rod end perpendicular to panel
Head is fixedly connected.Template periphery angle steel is additionally provided in the bottom of panel 31.
The both ends of panel 31 and open channel side slope 5 are equipped with gap, are equipped between the end positions of panel 31, two pieces of panels 31
Flexible block pulp body 35；
Preferred scheme is as shown in Figure 6, is equipped with clamping plate 37 in the end positions of panel 31, bolt passes through clamping plate 37, panel 31
It is fixedly connected with flexible block pulp body 35 with nut；The flexible block pulp body 35 is canvas or rubberized fabric；
It is additionally provided with the equalizing pipe 11 of connection upstream and downstream in template, gate valve 12,11 conduct of equalizing pipe are equipped on equalizing pipe 11
The water stream channel of upstream and downstream.
In preferred scheme, eliminator plate 36 flexible is additionally provided in the end positions of panel 31.Eliminator plate 36 uses rubber
Plate, for compensating the gap between template and open channel side slope 5.
In preferred scheme, the template is divided into multistage from top to bottom, the segmental hoisting in hoisting process；It will in this example
Template is divided into upper former 3 and 4 two sections of lower template.It is equipped with vertically in the position that upper former 3 is in contact with lower template 4
Guide pipe, positioned at different sections of guide pipes in construction mutual fitting.
S2, top side laying Bailey bridge 1 conduct material feeding and auxiliary construction platform in open channel pouring construction；
According to diversion tunnel outlet stream form, there are a certain amount of block of stones for the open channel bottom plate 6 of water conservancy diversion hole outlet.In cofferdam construction
Before, professional diving personnel need to be arranged to feel.Bailey bridge 1 be arranged 1 25t truck crane for block stone cleaning, when block stone compared with
Hour, block stone is removed to the hanging basket placed in water by diver, block stone in hanging basket is hung to and is parked on highway by truck crane
On dump truck；When block stone is larger, wirerope is bundled on block stone by diver, block stone is removed into construction area by truck crane
Domain.
It is in S3, segmental hoisting template to open channel and fixed；
Upper former 3 and lower template 4 are completed the process at assembled scene, with 1 25t truck crane cooperation 10t flat car transhipment
Boom hoisting 7 to bank is first to be lifted lower template 4 extremely by 200t truck crane in 200t truck crane R=26m working range
Cofferdam construction predetermined position, it should be noted that since construction location is undesirable, and road is narrow, the arm of force of 200t truck crane compared with
Long, the stress in cofferdam construction predetermined position, 200t truck crane is bad, it is difficult to lift by crane integral mold plate.
After the completion of lifting, by positioning wire rope 10 lower template 4 is fixed on by wirerope using bottle gouard moved by hands pre-
Positioning is set.Specific steps are as follows: multiple 20t bottle gouards moved by hands are fixed on the upstream side of open channel side slope 5 by anchor pile, preferably also wrap
It includes on the downstream side and Bailey bridge 1 of open channel side slope 5, bottle gouard moved by hands is connect with one end of positioning wire rope 10, positioning wire rope 10
The other end connect with lower template 4, by tightening and loosen each bottle gouard moved by hands, adjust lower template 4 to predetermined position simultaneously
It is fixed.It recycles 200t truck crane to lift upper former 3, in hoisting process, makes the upper guide pipe 8 and lower layer's mould of upper former 3
The mutual fitting of lower guide pipe 9 of plate 4.To ensure being reliably connected for upper former 3 and lower template 4, pass through positioning wire rope 10
Upper former 3 is adjusted to predetermined position and fixation.It surges to prevent water flow when concreting under water and template is caused to shift.It is flat
Pressure pipe 11 is arranged in upper former 3, and the gate valve 12 on equalizing pipe 11 is opened in hoisting process, balance upstream and downstream side
Water pressure.
The arrangement of S4, hopper and conduit；Underwater concrete pouring is poured using tremie method, and conduit bottom is located at lower layer's mould
Close to the position of open channel bottom plate 6 between two pieces of panels 31 of plate 4, conduit diameter is φ 250mm, is arranged along template length direction
More, be preferably 6 in this example, and hopper is located at the lower section of 1 side of Bailey bridge, is convenient for dumper fast pouring.
S5, underwater concreting；
When pouring, conduit blanking wheel stream is carried out, and concrete face rises in parallel, must not stay construction joint, disposable continuous placing finishes.Under water
When pouring concrete, the first batch of concrete into conduit is no less than 1.5m3, conduit is constantly promoted in casting process, it is ensured that conduit is embedded to concrete
Depth is not less than 60cm.In casting process, concrete struts flexible block pulp body 35, makes flexible block pulp body 35 and open channel side slope
5 fit closely, and realization blocks water.
Concrete cofferdam rapid construction under circumstance of flowing water is realized by above step.
Embodiment 2:
In Fig. 1 ~ 6, a kind of template for concrete cofferdam rapid constructing method under above-mentioned circumstance of flowing water, it includes opposite
Two pieces of panels 31 of arrangement, panel use 2.5mm steel plate, and truss structure 32, the back side setting of panel 31 are arranged between panel 31
The longitudinal waling 33 and lateral waling 34 being fixedly connected with panel 31；Longitudinal waling 33 uses channel steel, and lateral waling 34 uses angle
Steel.
In preferred scheme, the template is divided into multistage from top to bottom, the segmental hoisting in hoisting process；As shown in figure 1,
It is divided into upper former 3 and lower template 4.
The both ends of panel 31 and open channel side slope 5 are equipped with gap, gap width 5-20cm, preferably 15cm, in panel 31
End positions, flexible block pulp body 35 is equipped between two pieces of panels 31；
Preferred scheme is as shown in Figure 6, is equipped with two clamping plates 37 in the end positions of panel 31, and clamping plate 37 uses 8mm steel plate,
Bolt passes through clamping plate 37, panel 31 and flexible block pulp body 35 and is fixedly connected with nut；The flexible block pulp body 35 be canvas or
Rubberized fabric；The flexible block pulp body 35 is canvas or rubberized fabric；In casting process, concrete supports flexible block pulp body 35
It opens, fits closely flexible block pulp body 35 with open channel side slope 5, realization blocks water.
The truss structure 32 includes the more bars perpendicular to panel, the both ends of bar and panel 31, longitudinal waling 33 or
Lateral waling 34 is fixedly connected, and is additionally provided with more inclined bars, and the end of inclined bar is fixed with the rod end head perpendicular to panel
Connection；The horizon bar and brace of truss structure 32 in this example use angle steel.Slot is used in the hoisting point position of truss structure 32
Steel substitutes angle steel.Template periphery angle steel is additionally provided in the bottom of panel 31.
It is additionally provided with the equalizing pipe 11 of connection upstream and downstream in template, gate valve 12 is equipped on equalizing pipe 11, equalizing pipe 11 is made
For the water stream channel of upstream and downstream.Equalizing pipe 11 in this example uses DN300 equalizing pipe, and the equalizing pipe 11 in this example stretches out template
Upstream side and downstream side be respectively 0.5m, and 1, mating gate valve is respectively installed in downstream side, in the construction process opens gate valve 12
It opens, underwater cofferdam carries out gate valve closing after the completion of pouring, to balance template upstream and downstream side water flow pressure to the impact force of template.
In preferred scheme, eliminator plate 36 flexible is additionally provided in the end positions of panel 31；Eliminator plate 36 uses rubber
Material, the end length of extending panel 31 are 10 ~ 25cm, preferably 15 ~ 30cm, eliminator plate 36 by deformation under water pressure with
Open channel side slope 5 fits closely, and further increases block-water effect.
It is equipped with vertical guide pipe in the position that each section of template is in contact, guide pipe is arranged as along template length direction
3, the guide pipe of upper former 3 and lower template 4 in this example is mounted on the middle position of truss structure 32, upper guide pipe 8
Using DN150 steel pipe, lower guide pipe 9 uses DN100 steel pipe.Positioned at the upper guide pipe 8 of upper former 3 and lower template 4 under
The mutual fitting during the installation process of guide pipe 9.
The above embodiments are only the preferred technical solution of the present invention, and are not construed as limitation of the invention, this hair
The technical characteristic of bright middle record can be combined with each other use under the premise of not conflicting, and protection scope of the present invention should be with right
It is required that record technical solution, including claim record technical solution in technical characteristic equivalents be protection model
It encloses.Equivalent replacement i.e. within this range is improved, also within protection scope of the present invention.
Claims (10)
1. concrete cofferdam rapid constructing method under a kind of circumstance of flowing water, it is characterized in that the following steps are included:
S1, template processing, process underwater steel truss template according to the cross-sectional shape of water conservancy diversion hole outlet open channel；
S2, open channel pouring construction top side lay Bailey bridge (1) be used as material feeding and auxiliary construction platform；
It is in S3, segmental hoisting template to open channel and fixed；
The arrangement of S4, hopper and conduit；
S5, underwater concreting；
Concrete cofferdam rapid construction under circumstance of flowing water is realized by above step.
2. concrete cofferdam rapid constructing method under a kind of circumstance of flowing water according to claim 1, it is characterized in that: constructing
The block stone of preceding cleaning open channel bottom plate (6)；
In Bailey bridge (1) setting truck crane for the cleaning of block stone, when block stone is smaller, block stone is removed to being placed on water by diver
In hanging basket in, block stone in hanging basket is hung on the dump truck being parked on highway by truck crane；When block stone is larger, by diver
Wirerope is bundled on block stone, block stone is removed into construction area by truck crane.
3. concrete cofferdam rapid constructing method under a kind of circumstance of flowing water according to claim 1, it is characterized in that: described
The structure of underwater construction template are as follows:
It includes two pieces of panels (31) positioned opposite, truss structure (32) is arranged between panel (31), the back side of panel (31)
The longitudinal waling (33) being fixedly connected with panel (31) and lateral waling (34) are set；
The both ends and open channel side slope (5) of panel (31) are equipped with gap, the end positions in panel (31), between two pieces of panels (31)
Equipped with flexible block pulp body (35)；
The truss structure (32) includes the more bars perpendicular to panel, the both ends and panel (31) of bar, longitudinal waling (33)
Or lateral waling (34) is fixedly connected, and is additionally provided with more inclined bars, the end of inclined bar and the rod end head perpendicular to panel
It is fixedly connected.
4. concrete cofferdam rapid constructing method under a kind of circumstance of flowing water according to claim 3, it is characterized in that: in panel
(31) end positions are equipped with clamping plate (37), and bolt passes through clamping plate (37), panel (31) and flexible block pulp body (35) and nut and consolidates
Fixed connection；The flexible block pulp body (35) is canvas or rubberized fabric；
It is additionally provided with the equalizing pipe (11) of connection upstream and downstream in template, is equipped with gate valve (12) on equalizing pipe (11), equalizing pipe
(11) water stream channel as upstream and downstream.
5. concrete cofferdam rapid constructing method under a kind of circumstance of flowing water according to claim 4, it is characterized in that: in panel
(31) end positions are additionally provided with eliminator plate flexible (36).
6. concrete cofferdam rapid constructing method under a kind of described in any item circumstance of flowing water according to claim 1 ~ 5, feature
Be: the template is divided into multistage from top to bottom, the segmental hoisting in hoisting process；
It is equipped with vertical guide pipe in the position that each section of template is in contact, positioned at the mutual fitting of different sections of guide pipes.
7. concrete cofferdam rapid constructing method under a kind of circumstance of flowing water according to claim 6, it is characterized in that: in mould
The open channel side slope (5) of the upstream side of plate is equipped with many places positioning wire rope (10), and positioning wire rope (10) is connect with template, realizes mould
Plate positioning.
8. template of the one kind for concrete cofferdam rapid constructing method under the described in any item circumstance of flowing water of claim 1 ~ 7,
It is characterized in that: it includes two pieces of panels (31) positioned opposite, truss structure (32) are set between panel (31), panel (31)
The longitudinal waling (33) and lateral waling (34) that back side setting is fixedly connected with panel (31)；
The both ends and open channel side slope (5) of panel (31) are equipped with gap, the end positions in panel (31), between two pieces of panels (31)
Equipped with flexible block pulp body (35)；
The truss structure (32) includes the more bars perpendicular to panel, the both ends and panel (31) of bar, longitudinal waling (33)
Or lateral waling (34) is fixedly connected, and is additionally provided with more inclined bars, the end of inclined bar and the rod end head perpendicular to panel
It is fixedly connected；
It is additionally provided with the equalizing pipe (11) of connection upstream and downstream in template, is equipped with gate valve (12) on equalizing pipe (11), equalizing pipe
(11) water stream channel as upstream and downstream.
9. the template of concrete cofferdam rapid constructing method under a kind of circumstance of flowing water according to claim 8, it is characterized in that:
Eliminator plate flexible (36) are additionally provided in the end positions of panel (31).
10. the template of concrete cofferdam rapid constructing method, feature under a kind of circumstance of flowing water according to claim 8
Be: the template is divided into multistage from top to bottom, the segmental hoisting in hoisting process；
It is equipped with vertical guide pipe in the position that each section of template is in contact, positioned at the mutual fitting of different sections of guide pipes.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110725320A (en) * | 2019-10-16 | 2020-01-24 | 北京翔鲲水务建设有限公司 | Sand prevention sill pouring method |
| CN114991091A (en) * | 2022-05-10 | 2022-09-02 | 中国葛洲坝集团第二工程有限公司 | Anti-impact wear-resistant concrete pouring method for hyperbolic twisted surface flow surface bottom plate |
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