CN105041340A - Structure and construction method for increasing arch crown concrete pouring speed in tunnel engineering - Google Patents
Structure and construction method for increasing arch crown concrete pouring speed in tunnel engineering Download PDFInfo
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- CN105041340A CN105041340A CN201510493919.3A CN201510493919A CN105041340A CN 105041340 A CN105041340 A CN 105041340A CN 201510493919 A CN201510493919 A CN 201510493919A CN 105041340 A CN105041340 A CN 105041340A
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Abstract
The invention relates to a structure and construction method for increasing the arch crown concrete pouring speed in tunnel engineering. The structure comprises a framework, a pipe connector and a valve. A hole is formed in the middle of the framework. The pipe connector is downwards and fixedly connected with the hole. The portion, corresponding to the hole, of the upper surface of the framework is transversely provided with the valve in a sliding mode. According to the structure and construction method, arch concrete pouring is conducted through the improved pipe connector, and working efficiency is improved greatly and improved by more than 10 times. By means of the structure and construction method, the labor resources are reduced greatly, the working strength of workers is low, working efficiency is high, and the structure is easy and safe to manage; less slurry is leaked through connection openings of pumping pipes, no obvious slurry leakage phenomenon exists at the sealed positions, conveying pipes are flexible and convenient to disassemble, and time is saved; meanwhile due to the fact that pressing pouring is adopted for arch crown concrete, no empty-support site is generated, the quality and safety problems are avoided, and the advantages that the pumping construe construction is high in speed and high in quality, and the labor intensity of workers is lowered are fully played.
Description
Technical field
The invention belongs to tunnel vault pouring concrete technical field, especially at building materials mine and non-metal mine tunnel or tunnel secondary lining, a kind of structure and the method accelerating construction of tunnel vault pouring concrete speed under adopting combined steel plate to spell mould condition.
Background technology
Current, in building materials mine or non-metal mine industry, consider the factors such as cost investment, integral mold plate not yet large scale investment uses, and tunnel or tunnel secondary lining mainly adopt combined steel formwork to spell mould.In use pumping of concrete process, side wall concrete can have been built smoothly, but when building vault, pumping directly cannot enter mould, need adopt and manually enter modeling method, namely build concrete with spade one spade one spade toward arch crown part, workman's operation intensity is large, and work efficiency is extremely low, concrete waste is large, build the vault that a 6.0m is long, need more than 20 people's work about 12 hours, had a strong impact on the progress of engineering.And easily occur empty head space side phenomenon at arch crown part, manually enter die worker's effect extremely low, the concreting time is long, and concrete workability is deteriorated, and exacerbates the existing sky top phenomenon gone out because of vault concrete flowability difference in addition.Sometimes because of concrete poor fluidity, there is the violation way adding water to improve its mobility in field operation personnel, this construction method, along with the activity duration increases, concrete performance (comprising the performance such as workability, intensity) all can be affected, even can the phenomenon of generating pump pipe plug pipe.The empty head space that arch crown part occurs simultaneously helps phenomenon, adds the difficulty of secondary grouting process.
Particularly occur needing repairing in operation belt porch tunnel in building materials mine, or construction project needs to hand in advance peace to occur feeding intake and produce when serving as a contrast cross-operation with two, vault coagulation earth is built employing and is manually entered mould and cannot construct.
To sum up, there is larger quality and potential safety hazard in traditional concrete casting building technology, and takies human resources, and work efficiency is low waits deficiency.
Find following disclosed patent document through retrieval, concrete disclosure is as follows:
Patent document: a kind of Middle Wall of Multi-Arch Highway Tunnel vault concreting method (notification number CN103835728A), comprise the following steps: the making of a steel form and setting, b lays concrete pump line, and c builds middle and lower part concrete and middle and upper part concrete, and arch concrete is built in d supercharging.
Find through contrast, above-mentioned documents and present patent application have relatively big difference in technical scheme.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of structure and the construction method of accelerating construction of tunnel vault pouring concrete speed are provided, vault concreting speed are fast, construction quality is high to reach, alleviate the object of labor strength and quickening duration progress.
The solution of the present invention is achieved in that
Accelerate a structure for construction of tunnel vault pouring concrete speed, comprise template, union and valve, be shaped with hole in the middle part of described template, this hole place is fixedly mounted with union downwards, the horizontal valve that is slidably installed of template upper surface of corresponding described hole.
And described valve is two of left and right symmetry.
And described template thickness is the steel plate of 10mm, described valve thickness is the steel plate of 6mm.
And the soffit symmetry of described valve is fixedly mounted with handle, to the template of handle being shaped with rectangle chute.
And, tilt to be fixedly mounted with multiple reinforcing rib between described union surrounding side and template.
Accelerate a construction method for construction of tunnel vault pouring concrete speed, step is as follows:
Step one, installation both sides, tunnel abutment wall and vault template, have at least a model sheetinstallat to have union and valve in vault template;
Step 2, both sides abutment wall symmetry are built;
Step 3, pump line terminal and union to be plugged into, last is installed across vault template and shutoff;
Step 4, vault concreting;
Step 5, built rear vibration compacting, valve-off also dismantles pump line;
Step 6, cleaning associated components, give over to and use next time.
And, in described step one, when once construct longer work cycle time, polylith vault template is all with union and valve;
Pump line terminal and first union start vault concreting after plugging into, and valve-off after vibration compacting also tears pipe open;
Then start vault concreting after pump line terminal and second union being plugged into, valve-off after vibration compacting also tears pipe open;
By that analogy, pump line terminal and last union are plugged into and are started vault concreting, and last is across vault model sheetinstallat and shutoff;
The same step 4 of all the other construction methods, step 5, step 6.
Advantage of the present invention and good effect are:
The present invention adopts the union after improvement and design to carry out arch concreting, greatly improve work efficiency, need more than 20 people's work about 12 hours from original 6.0m arch of building, become and only need 6-8 people's operation now, completed less than one hour, work efficiency improves more than ten doubly.Simultaneously, in construction after this, by increasing the steel form of a band union, 15.0m mono-circulation (note: work cycle length should not after length will be adjusted to by 6.0m secondary lining work cycle, need longitudinal rational position arrange settlement joint and carry out the process of constuction joint in tunnel), can complete in 3h that whole vault is concrete builds.Distribute human resources greatly, workman's operation intensity is low, and work efficiency is high, is easy to safety management.Pumping line connecting port place spillage is few, closed place also without obvious spillage phenomenon, substantially without waste, dismounting carrier pipe flexibly, convenient, save time.Simultaneously because vault concrete is pressure injection, there will not be empty top on-the-spot, quality and safety problem can not be produced, given full play to that pumping concrete construction speed is fast, quality is high, alleviate the advantage of labor strength.
Accompanying drawing explanation
Fig. 1 is front view of the present invention;
Fig. 2 is that the A-A of Fig. 1 is to sectional view;
Fig. 3 is the state diagram of valve open of the present invention;
Fig. 4 is 6m work cycle arch concreting schematic diagram of the present invention;
Fig. 5 is 15m work cycle arch concreting schematic diagram of the present invention;
Fig. 6 is construction process figure of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, also by specific embodiment, the invention will be further described.
A kind of structure accelerating construction of tunnel vault pouring concrete speed, as shown in Figure 1 and Figure 2, comprise template 1, union 3 and valve 2, in the middle part of described template, be shaped with φ 130mm hole, this hole place is fixedly mounted with union downwards, the horizontal valve that is slidably installed of template upper surface of corresponding described hole.Described template is one piece of thickness is the steel plate of 10mm, described valve is one piece of thickness is the steel plate of 6mm, and this valve is two pieces of left and right symmetry, conveniently mobile valve, the soffit symmetry of this valve is fixedly mounted with handle 6, to the template of handle being shaped with rectangle chute 4.
In the present embodiment, reinforce with φ 18mm reinforcing rib between described union surrounding side and template, ensure that the firmness of union.
Application example:
China Resources cement (Midu) Co., Ltd second phase cement producing line limestone conveying K0+160 ~ K0+899m section construction of tunnel Second Lining Construction condition is that belt porch takies the confined space, and execution conditions limit, and belt feeds intake and serves as a contrast with two cross-operation of constructing.This project Second Lining Construction adopts this transformation template to construct,
Once to construct 6.0m (namely four across arch mould) secondary lining, as shown in Figure 4, only sidewall template all need be installed, arch model sheetinstallat three across (i.e. 4.5m), the steel shutterings with union be contained in second across, after treating both sides abutment wall concreting, the transformation steel form of the terminal of pump line with band union can be plugged into, carry out simultaneously last across, namely the 4th across the installation of arch template, and the sizing plug made in advance is carried out front end shutoff process.After all preparation completes, can carry out concreting, make concrete under road gradient in highway tunnel condition, first built across arch bottom one, in figure, the direction of arrow is concrete flow direction, and sequence of flow is first left and then right; After under the pressure effect of the pump housing, by bottom one across arch concrete preliminary consolidation, concrete is pressed into top two across in the template of arch, built, after vibration compacting, valve-off tears pipe open, and cleans in time associated components simultaneously.
Accelerate a construction method for construction of tunnel vault pouring concrete speed, step is as follows:
Step one, installation both sides, tunnel abutment wall and vault template, have at least a model sheetinstallat to have union and valve in vault template;
Step 2, both sides abutment wall symmetry are built;
Step 3, pump line terminal and union to be plugged into, last is installed across vault template and shutoff;
Step 4, vault concreting;
Step 4, built rear vibration compacting, valve-off also dismantles pump line;
Step 5, cleaning associated components, give over to and use next time.
When shorter work cycle of once constructing, such as 6m secondary lining, can be positioned at by the template with union in second across being centre position;
In described step one, when once construct longer work cycle time, multiple vault template is with union;
Pump line terminal and first union start vault concreting after plugging into, and valve-off after vibration compacting also tears pipe open;
Then start vault concreting after pump line terminal and second union being plugged into, valve-off after vibration compacting also tears pipe open;
By that analogy, pump line terminal and last union are plugged into and are started vault concreting, and last is across vault model sheetinstallat and shutoff;
The same step 4 of all the other construction methods, step 5, step 6.
It is emphasized that; embodiment of the present invention is illustrative; instead of it is determinate; therefore the present invention includes the embodiment be not limited to described in detailed description of the invention; every other embodiments drawn by those skilled in the art's technical scheme according to the present invention, belong to the scope of protection of the invention equally.
Claims (7)
1. accelerate the structure of construction of tunnel vault pouring concrete speed for one kind, it is characterized in that: comprise template, union and valve, be shaped with hole in the middle part of described template, this hole place is fixedly mounted with union downwards, the horizontal valve that is slidably installed of template upper surface of corresponding described hole.
2. the structure of quickening construction of tunnel vault pouring concrete speed according to claim 1, is characterized in that: described valve is two of left and right symmetry.
3. the structure of quickening construction of tunnel vault pouring concrete speed according to claim 1 and 2, it is characterized in that: described template thickness is the steel plate of 10mm, described valve thickness is the steel plate of 6mm.
4. the structure of quickening construction of tunnel vault pouring concrete speed according to claim 1 and 2, is characterized in that: the soffit symmetry of described valve is fixedly mounted with handle, to the template of handle being shaped with rectangle chute.
5. the structure of quickening construction of tunnel vault pouring concrete speed according to claim 1 and 2, is characterized in that: tilt to be fixedly mounted with multiple reinforcing rib between described union surrounding side and template.
6. a construction method for the quickening construction of tunnel vault pouring concrete speed as described in any one of claim 1 to 5, is characterized in that: step is as follows:
Step one, installation both sides, tunnel abutment wall and vault template, have at least a model sheetinstallat to have union and valve in vault template;
Step 2, both sides abutment wall symmetry are built;
Step 3, pump line terminal and union to be plugged into, last is installed across vault template and shutoff;
Step 4, vault concreting;
Step 5, built rear vibration compacting, valve-off also dismantles pump line;
Step 6, cleaning associated components, give over to and use next time.
7. the construction method of quickening construction of tunnel vault pouring concrete speed according to claim 6, is characterized in that: in described step one, when once construct longer work cycle time, the spaced vault template of polylith is with union and valve;
Pump line terminal and first union start vault concreting after plugging into, and valve-off after vibration compacting also tears pipe open;
Then start vault concreting after pump line terminal and second union being plugged into, valve-off after vibration compacting also tears pipe open;
By that analogy, pump line terminal and last union are plugged into and are started vault concreting, and last is across vault model sheetinstallat and shutoff;
The same step 4 of all the other construction methods, step 5, step 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510493919.3A CN105041340A (en) | 2015-08-12 | 2015-08-12 | Structure and construction method for increasing arch crown concrete pouring speed in tunnel engineering |
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| CN201510493919.3A CN105041340A (en) | 2015-08-12 | 2015-08-12 | Structure and construction method for increasing arch crown concrete pouring speed in tunnel engineering |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105888694A (en) * | 2016-06-08 | 2016-08-24 | 张济宏 | Tunnel integral steel mould lining trolley capping device and seamless capping process |
| CN106522992A (en) * | 2016-11-24 | 2017-03-22 | 中铁隧道集团有限公司 | Concrete lining formwork trolley insertion-type concrete grouting construction method |
| CN106593473A (en) * | 2016-12-23 | 2017-04-26 | 湖南五新隧道智能装备股份有限公司 | Trolley for side and roof arch zone middle partition wall lining |
| CN117316830A (en) * | 2023-11-28 | 2023-12-29 | 成都高投芯未半导体有限公司 | Semiconductor packaging system and control method |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105888694A (en) * | 2016-06-08 | 2016-08-24 | 张济宏 | Tunnel integral steel mould lining trolley capping device and seamless capping process |
| CN106522992A (en) * | 2016-11-24 | 2017-03-22 | 中铁隧道集团有限公司 | Concrete lining formwork trolley insertion-type concrete grouting construction method |
| CN106593473A (en) * | 2016-12-23 | 2017-04-26 | 湖南五新隧道智能装备股份有限公司 | Trolley for side and roof arch zone middle partition wall lining |
| CN106593473B (en) * | 2016-12-23 | 2019-08-02 | 湖南五新隧道智能装备股份有限公司 | A kind of side and roof arch band mid-board lining cutting trolley |
| CN117316830A (en) * | 2023-11-28 | 2023-12-29 | 成都高投芯未半导体有限公司 | Semiconductor packaging system and control method |
| CN117316830B (en) * | 2023-11-28 | 2024-02-02 | 成都高投芯未半导体有限公司 | Semiconductor packaging system and control method |
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Application publication date: 20151111 |