CN204668889U - Lateral sulcus cable trough rmc monomer and lateral sulcus cable trough combining structure - Google Patents
Lateral sulcus cable trough rmc monomer and lateral sulcus cable trough combining structure Download PDFInfo
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- CN204668889U CN204668889U CN201520263055.1U CN201520263055U CN204668889U CN 204668889 U CN204668889 U CN 204668889U CN 201520263055 U CN201520263055 U CN 201520263055U CN 204668889 U CN204668889 U CN 204668889U
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Abstract
The utility model relates to underground works technical field, is specifically related to lateral sulcus cable trough rmc monomer and lateral sulcus cable trough combining structure.These its two ends of lateral sulcus cable trough rmc monomer, tunnel are respectively link, for groove structure, cable trough district, lateral sulcus district, spareslots district is divided in the groove of described groove structure, described cable trough district, described lateral sulcus district, described spareslots district all extend to link described in another from a described link, and through in the end of two links.Multiple tunnels lateral sulcus cable trough rmc monomer is in series, and the spacing between adjacent two is less than 8 millimeters, and faulting of slab ends is less than 5 millimeters.Shaping by mode oscillation of preparing burden, mix and stir, enter, first foster, whole supporting obtains tunnel lateral sulcus cable trough rmc monomer.Previously prepared monomer structure outside hole, installs in tunnel, improves speed of application and construction quality.
Description
Technical field
The utility model relates to underground works technical field, is specifically related to tunnel lateral sulcus cable trough rmc monomer and tunnel lateral sulcus cable trough combining structure.
Background technology
At present, the lateral sulcus of Railway Tunnel and cable trough generally adopt C30 cast-in-place concrete, and speed of application is slow, and construct in the tunnel in and curing condition poor, making construction quality be difficult to be protected, easily there is breakage in lateral sulcus and cable trough edge.
Utility model content
Embodiment of the present utility model provides a kind of tunnel lateral sulcus cable trough rmc monomer and lateral sulcus cable trough combining structure, can solve cast in situs and impel speed of application slow, the problem of construction quality difference.
A kind of tunnel lateral sulcus cable trough rmc monomer is provided according to an aspect of the present utility model, its two ends are respectively link, and link opening, for groove structure, cable trough district, lateral sulcus district, spareslots district is divided in the groove of described groove structure, described cable trough district, described lateral sulcus district, described spareslots district all extend to the opening of link described in another from the opening of a described link, and through in the end of two links.
In certain embodiments, be preferably, its bottom surface arranges a step, and the bottom surface of the side on road surface is higher than the bottom surface of the side away from road surface in tunnel in the tunnel.
In certain embodiments, be preferably, described tunnel lateral sulcus cable trough rmc monomer comprises Liang Ge cable trough district, a lateral sulcus district, a spareslots district; Wherein, Liang Ge cable trough district with described lateral sulcus district for symmetrical centre is symmetrical arranged; The upper surface of described spareslots is closed, and is in the below in the cable trough district away from tunnel road surface.
In certain embodiments, be preferably, described tunnel lateral sulcus cable trough rmc monomer also comprises cover plate, and described cover plate covers the upper shed of tunnel lateral sulcus cable trough rmc monomer.
In certain embodiments, be preferably, the sidewall of described tunnel lateral sulcus cable trough rmc monomer and the dividing plate of inside are the mixture of quartz sand, steel fibre, 425R Portland cement, SILICA FUME, slag powders and water reducer, water; Adding proportion is: calculate by quality ratio, 425R: quartz sand: SILICA FUME: slag powders: steel fibre: water reducer, water are 1:1.1 ~ 1.5:0.1 ~ 0.5:0.2 ~ 0.5:1.0 ~ 3.0:0.01 ~ 0.03:0.1 ~ 0.4.
The utility model additionally provides a kind of tunnel lateral sulcus cable trough combining structure on the other hand, be in series by multiple above-mentioned tunnels lateral sulcus cable trough rmc monomer, the link contact of adjacent two described tunnel lateral sulcus cable trough rmc monomers, the spacing connected between adjacent two described tunnel lateral sulcus cable trough rmc monomers is less than 8 millimeters, and faulting of slab ends is less than 5 millimeters.
The tunnel lateral sulcus cable trough rmc monomer provided by embodiment of the present utility model and tunnel lateral sulcus cable trough combining structure, compared with prior art, by getting the raw materials ready, mix, enter mould, vibrate shaping, just support, support eventually and prefabricatedly obtain tunnel lateral sulcus cable trough rmc monomer, multiple tunnel lateral sulcus cable trough rmc monomer series connection are stitched together, adjacent two distances are within 8 millimeters, faulting of slab ends is within 5 millimeters, and tunnel construction site is spliced into tunnel lateral sulcus cable trough combining structure.Because tunnel lateral sulcus cable trough rmc monomer is prefabricated in advance, the surface of tunnel lateral sulcus cable trough rmc monomer keeps clean, and in-site installation is convenient, improves efficiency of construction, and there will not be the situation of the too much foreign material of remained on surface, improves curing condition.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, discuss to the accompanying drawing used required in embodiment or description of the prior art below, obviously, only embodiments more of the present utility model in the technical scheme be described by reference to the accompanying drawings, for those of ordinary skills, under the prerequisite not paying creative work, other embodiment and accompanying drawing thereof can also be obtained according to these accompanying drawing illustrated embodiments.
Fig. 1 is the cross sectional representation of tunnel lateral sulcus cable trough rmc monomer in the utility model embodiment;
Fig. 2 is the schematic perspective view of tunnel lateral sulcus cable trough rmc monomer in the utility model embodiment.
Embodiment
Carry out clear complete description below with reference to the technical scheme of accompanying drawing to each embodiment of the utility model, obviously, described embodiment is only a part of embodiment of the present utility model, instead of whole embodiment.Based on the embodiment in the utility model, other embodiments all that those of ordinary skill in the art obtain under the prerequisite not needing creative work, all in the scope that the utility model is protected.
Consider that current tunnel lateral sulcus cable trough is cast in situs, speed of application is slow, and build epimeral suture, easily there is breakage, the problem of curing condition difference in the edge of cable trough, present embodiments provides a kind of tunnel lateral sulcus cable trough rmc monomer and tunnel lateral sulcus cable trough combining structure.
A kind of tunnel lateral sulcus cable trough rmc monomer, its two ends are respectively link, and link opening, for groove structure, cable trough district, lateral sulcus district, spareslots district is divided in the groove of described groove structure, described cable trough district, described lateral sulcus district, described spareslots district all extend to the opening of link described in another from the opening of a described link, and through in the end of two links.
A kind of tunnel lateral sulcus cable trough combining structure, be in series by multiple above-mentioned tunnels lateral sulcus cable trough rmc monomer, the link contact of adjacent two described tunnel lateral sulcus cable trough rmc monomers, the spacing connected between adjacent two described tunnel lateral sulcus cable trough rmc monomers is less than 8 millimeters, and faulting of slab ends is less than 5 millimeters.
A preparation method for above-mentioned tunnel lateral sulcus cable trough rmc monomer, comprising:
Step 1, prepare raw material, described raw material comprises: quartz sand, steel fibre, 425R Portland cement, SILICA FUME, slag powders and water reducer, water; The adding proportion of described raw material is: calculate by quality ratio, 425R: quartz sand: SILICA FUME: slag powders: steel fibre: water reducer, water are 1:1.1 ~ 1.5:0.1 ~ 0.5:0.2 ~ 0.5:1.0 ~ 3.0:0.01 ~ 0.03:0.1 ~ 0.4; Water reducer is methylene dimethyl sodium dinaphthalenesulfonate polymer;
Step 2, is undertaken mixing and stirring by described raw material and obtains mixing and stirring material;
Step 3, the described material that mixes and stirs is sent into mould, and vibrate shaping early-products;
Step 4, is undertaken described early-products heating up, constant temperature, cooling is triphasic just supports;
Step 5, to the early-products form removal process after just supporting, and send into that final support room carries out heating up, constant temperature, cooling support triphasic end, obtains tunnel lateral sulcus cable trough rmc monomer.
By getting the raw materials ready, mix, enter mould, vibrate shaping, just support, support eventually and prefabricatedly obtain tunnel lateral sulcus cable trough rmc monomer, multiple tunnel lateral sulcus cable trough rmc monomer series connection are stitched together, adjacent two distances are within 8 millimeters, faulting of slab ends is within 5 millimeters, and tunnel construction site is spliced into tunnel lateral sulcus cable trough combining structure.Because tunnel lateral sulcus cable trough rmc monomer is prefabricated in advance, the surface of tunnel lateral sulcus cable trough rmc monomer keeps clean, and in-site installation is convenient, improves efficiency of construction, and there will not be the situation of the too much foreign material of remained on surface, improves curing condition.
The multiple embodiment of following utilization is described in detail:
The tunnel lateral sulcus cable trough combining structure that this technology relates to is in series by tunnel lateral sulcus cable trough rmc monomer, and tunnel lateral sulcus cable trough rmc monomer prefabricatedly to form in advance non-at-scene.
Tunnel lateral sulcus cable trough rmc monomer in this example, as shown in Figure 1, 2, its two ends are respectively link, for groove structure, cable trough district, lateral sulcus district, spareslots district is divided in the groove of groove structure, the dividing plate of concrete for making, described cable trough district, described lateral sulcus district, described spareslots district all extend to link described in another from a described link, and it is through in the end of two links, that is because multiple rmc monomer is cascaded, the end face of link is not closed, to form unobstructed pipeline.These tunnel lateral sulcus cable troughs are grouped together prefabricated in advance, directly install, can save a large amount of time in tunnel, and, prefabricatedly can improve the quality of monomer and overall standard, and then improve curing condition.
On the basis of the complete structure of above-mentioned tunnel lateral sulcus cable trough rmc monomer, inventor is according to the position relationship of road surface in tunnel and lateral sulcus, carry out layout more accurately, its bottom surface arranges a step, the bottom surface of the side on road surface is higher than the bottom surface of the side away from road surface in tunnel in the tunnel, step can frame to the edge on road surface.
On the basis of the complete structure of above-mentioned tunnel lateral sulcus cable trough rmc monomer, inventor designs the layout in monomer, and tunnel lateral sulcus cable trough rmc monomer comprises Liang Ge cable trough district, a lateral sulcus district, a spareslots district; Wherein, Liang Ge cable trough district with described lateral sulcus district for symmetrical centre is symmetrical arranged; The upper surface of described spareslots is closed, and is in the below in the cable trough district away from tunnel road surface.
It should be noted that, above-mentioned layout can be changed under other conditions, and those skilled in the art can adjust according to actual needs.
In new technical scheme, inventor have also been devised cover plate 1, to cover the upper shed of tunnel lateral sulcus cable trough rmc monomer.
The utility model not only have employed mode prefabricated in advance, also large based on the monomer weight that original employing existing concrete is prefabricated, is difficult to move operation, therefore, inventors performed new improvement, form new progressive technical scheme.The sidewall of tunnel lateral sulcus cable trough rmc monomer and the dividing plate separating each district are the mixture of quartz sand, steel fibre, 425R Portland cement, SILICA FUME, slag powders and water reducer, water.Its Raw adding proportion is: calculate by quality ratio, 425R: quartz sand: SILICA FUME: slag powders: steel fibre: water reducer, water are 1:1.1 ~ 1.5:0.1 ~ 0.5:0.2 ~ 0.5:1.0 ~ 3.0:0.01 ~ 0.03:0.1 ~ 0.4.Water reducer is methylene dimethyl sodium dinaphthalenesulfonate polymer.That is, tunnel lateral sulcus cable trough rmc monomer 1 is RPC RPC material, this material possesses the new material of superhigh intensity, high tenacity, high-durability, good volume stability, the New Building Materials that a kind of mechanical property, durability are all very superior, prefabricated outside tunnel, improve curing condition, improve construction quality.
Below, the preparation method of above-mentioned tunnel lateral sulcus cable trough rmc monomer is described:
Step 101, prepares raw material;
Raw material comprises: quartz sand, steel fibre, 425R Portland cement, SILICA FUME, slag powders and water reducer, water; The adding proportion of described raw material is: calculate by quality ratio, 425R: quartz sand: SILICA FUME: slag powders: steel fibre: water reducer, water are 1:1.1 ~ 1.5:0.1 ~ 0.5:0.2 ~ 0.5:1.0 ~ 3.0:0.01 ~ 0.03:0.1 ~ 0.4.Water reducer is methylene dimethyl sodium dinaphthalenesulfonate polymer.The material that these raw materials are formed can be called RPC (RPC).
Step 102, carries out mix by raw material and obtains mixing and stirring material;
The process of mix can promote the interaction force between raw material, and finally mixes and stirs the state of material, and therefore, inventor has carried out careful research to mix process:
First quartz sand, steel fibre is added, dry mixing (mixing and stirring when namely not adding water) is no less than 4 minutes, then cement, slag powders, SILICA FUME is added, dry mixing 2 minutes (being all fine in the scope of 1.5-3 minute, 2 minutes is the better time); Finally add water, water reducer, stir 4 minutes (3.5-5 minute), obtain mixing and stirring material.
It should be noted that, accurately control water consumption, add water after not allowing RPC mix to go out mixer; The mixing time that head mixes 4 minutes can not be very few, otherwise steel fibre just can not be uniformly dispersed completely, and after adding the powders such as cement, steel fibre can be united; RPC mixes and stirs and expects that freezing rate quickly at normal temperatures, and viscosity is very large, easily sticky wall, and the RPC stirred mixes and stirs material, and preferably in 30 seconds, discharging is complete.
Step 103, will mix and stir material and send into mould, and vibrate shaping early-products;
Transport the template and the conveyer belt that mix and stir material, should not absorb water, not spillage, and ensure discharging and carry unobstructed.
Early-products adopts the moulding process that vibrates, and obtain good jolt ramming effect, makes to mix and stir material and has higher intensity and packing, must choose reasonable Vibration Technology.It is consistent with vibrated bed that RPC mixes and stirs the vibration acceleration of material after entering mould, avoids great-jump-forward to vibrate as far as possible, reduces energy loss, and reduce noise, time of vibration controls at 2 ~ 4min.
Enter the mix after mould at vibration limit, vibrated bed top trowel Troweling press finishing, reach the evenness of standard-required, do not expose steel fibre, do not leak outside around template and mix and stir material, will avoid like this occurring burr around form removal epimeral suture cable trough, affect overall appearance, also can save and a large amount of manually go to polish it.
The freezing rate of RPC (RPC) material is very fast, when mixing and stirring material perfusion, pours into complete in best 30 minutes.Many owing to mixing and stirring material, should adopt continous pouring, the largest interval time of pouring into adjacent two is no more than 6 minutes.
Step 104, is undertaken early-products heating up, constant temperature, cooling is triphasic just supports;
Early-products after initial set goes to immediately just supports room, just supports room temperature and controls between 40 ± 5 DEG C, relative humidity >=70%.Just support by intensification, constant temperature, the maintenance of cooling three phases, programming rate control 12 DEG C/within, cooling rate controls within 15 DEG C/h, and thermostat temperature should control at 40 ± 5 DEG C.
Step 105, to the early-products form removal process after just supporting, and send into that final support room carries out heating up, constant temperature, cooling support triphasic end, obtains tunnel lateral sulcus cable trough rmc monomer.
Just support form removal after terminating, during form removal, the difference of component surface temperature and ambient temperature should not more than 15 DEG C.
First plastic film is removed during form removal, from shaper, pour out RPC lateral sulcus and cable trough goods.Must not overexert during form removal and damage the outward appearance of lateral sulcus and cable trough, reduce the infringement to template, will put down gently when lateral sulcus and cable trough are put, early strength is inadequate, prevents fracture, forbids to beat, lateral sulcus and cable trough and template to be piled up neatly respectively during form removal, be convenient to transport.
RPC lateral sulcus after just supporting form removal and cable trough will move to final support room and carry out steam curing, the temperature of final support room controls at 80 ± 5 DEG C, maintenance 48h, and process of supporting eventually is divided into intensification, constant temperature, cooling three phases, programming rate controls at 12 DEG C/h, and cooling rate controls at 15 DEG C/h.When shifting out final support room after supporting end eventually, the difference of component surface temperature and ambient temperature should more than 15 DEG C.
When RPC lateral sulcus and cable trough goods form removal piling, the gap of 30 ~ 50mm should be stayed between goods, be beneficial to the flowing of steam, the article outer surface contacted with steam should be made to amass maximum as far as possible, be beneficial to the transmission of heat.For colliding with and vapor flow when avoiding starting shipment, between RPC goods piling and the gap of 200mm should be stayed between piling and maintenance locular wall.Above each RPC goods piling, want covered with plastic film, prevent the condensed water on chamber cap from directly dripping in product surface, steam can not be sprayed directly on on RPC goods, and steam should be made downwards to spray.
Avoid in final support room using iron component as far as possible, as unavoidably, apply plastic film and wrapped up, or take other measures to cover iron component surface, with anti-pollution RPC product surface, outside the flitch of piling, should plastic film be wrapped up.Periodic cleaning fog room, clean in holding chamber, in case RPC goods are contaminated.Fog room should be able to control indoor temperature exactly, can control intensification cooling rate exactly.
Above step forms the preparation method of complete set, and based on this preparation method, inventor also add step 106 between step 103 and step 104, quietly stops.
Step 106, covered with plastic film above early-products, then quietly stops;
Quietly stopping, is also a composition step of maintenance strictly speaking, forms the quiet maintenance flow process of stopping, just supporting, supporting eventually complete set.
By the RPC goods band template translation after moulding by casting on bracket, covered with plastic film above template, scatter and disappear with the moisture evaporation reducing RPC goods, with fork truck, bracket is positioned over smooth Jing Ting district to rest, and check the surface smoothness of product, treat mix surface initial set, the quiet time controling that stops is in 6 hours (3-7 hour).
Based on this step, quiet stop and just support can control in 24 hours total time.
After adding step 106, form more complete preparation method further again.Based on outside above-mentioned preparation method, before being spliced into lateral sulcus and cable trough to tunnel lateral sulcus cable trough rmc monomer, need to deposit lateral sulcus and cable trough, i.e. step 107:
Step 107, depositing of tunnel lateral sulcus cable trough rmc monomer.
Tunnel lateral sulcus cable trough rmc monomer shifts out final support room after supporting eventually, edge-on layered stacked, every interlayer chock bar or flexible pipe, pile up and be highly no more than four layers, RPC lateral sulcus and the cable trough tarpaulin of piling cover, will handle with care when depositing lateral sulcus and cable trough, piling up of product will be convenient to product export entrucking.
Define again from being prepared into a set of more complete method deposited based on step 101-107.
Next, the tunnel lateral sulcus cable trough combining structure of installation method and series connection that tunnel lateral sulcus cable trough rmc monomer is spliced into tunnel lateral sulcus cable trough combining structure is described:
Tunnel lateral sulcus cable trough combining structure: be in series by multiple above-mentioned tunnel lateral sulcus cable trough rmc monomer 1, the link contact of adjacent two described tunnel lateral sulcus cable trough rmc monomers, the spacing connected between adjacent two described tunnel lateral sulcus cable trough rmc monomers is less than 8 millimeters, and faulting of slab ends is less than 5 millimeters.。
Concrete installation method: lateral sulcus and cable trough prefabricated section are installed and utilized loop wheel machine to lift by crane, and laser is located.The void of tunnel bottom quarrel should first clean up before installing by lateral sulcus and cable geosynclinal block, gets out level gauge, is carved with the target of crosshair, iron hammer, concrete wedge etc.First with spade cleaning, must then use high pressure water flushing wash clean during clear quarrel, the void quarrel on lateral sulcus and cable geosynclinal block both sides scar should clean up, and bottom the lateral sulcus and cable geosynclinal block avoiding dedusting fan recirculated water rock quarrel to be flushed to cleaning up, affects grouting quality.
Lateral sulcus and cable geosynclinal block are transported to device place, predetermined installation site is transported to loop wheel machine, target is put into lateral sulcus and cable geosynclinal block lateral sulcus and cable trough front end, handling loop wheel machine makes lateral sulcus and cable geosynclinal block drop to laser beam irradiation on the horizontal hair of crosshair, then handle loop wheel machine to move left and right, make laser beam be in the center of crosshair, represent that lateral sulcus and cable geosynclinal block are in design attitude.Level gauge is placed on lateral sulcus and the cable geosynclinal block end face direction vertical with tunnel axis, slowly regulates lateral sulcus and the lifting of cable trough loop wheel machine chain, until level gauge bubble is placed in the middle, represent lateral sulcus and cable geosynclinal block top level.
Note following standard in an installation:
It is as follows that lateral sulcus and cable geosynclinal block install allowable deviation:
Deviation≤the 30mm of elevation, center line and design attitude;
Faulting of slab ends≤5mm between two pieces of lateral sulcus and cable geosynclinal block;
Maximal clearance≤the 8mm of two pieces of lateral sulcus and cable geosynclinal block seam crossing.
In general:
1. lateral sulcus and cable trough adopt outside hole prefabricated, and installation in hole, has increased substantially the speed of application of tunnel lateral sulcus and cable trough.Improve that tunnel is prefabricated, factorial construction level.
2. compared with cast-in-place with in hole, outside hole, prefabricated lateral sulcus and cable trough have good construction environment and curing condition, therefore can increase substantially the construction quality of lateral sulcus and cable trough, prevent slot wedge damaged.
3., by adopting the RPC (RPC) of high strength, under the prerequisite not affecting lateral sulcus and cable trough resistance to compression, rupture strength, significantly can reduce lateral sulcus and cable trough thickness, saving concrete and amount of reinforcement.
The various embodiments that the utility model provides can combine as required in any way mutually, the technical scheme obtained by this combination, also in scope of the present utility model.
Obviously, when not departing from spirit and scope of the present utility model, those skilled in the art can carry out various change and modification to the utility model.If to change of the present utility model these and modification is within the scope of claim of the present utility model and equivalent thereof, then the utility model also will comprise these and change and modification.
Claims (5)
1. a tunnel lateral sulcus cable trough rmc monomer, it is characterized in that, its two ends are respectively link, and link opening, for groove structure, be divided into cable trough district, lateral sulcus district, spareslots district in the groove of described groove structure, described cable trough district, described lateral sulcus district, described spareslots district all extend to the opening of link described in another from the opening of a described link, and through in the end of two links.
2. tunnel as claimed in claim 1 lateral sulcus cable trough rmc monomer, is characterized in that,
Its bottom surface arranges a step, and the bottom surface of the side on road surface is higher than the bottom surface of the side away from road surface in tunnel in the tunnel.
3. tunnel as claimed in claim 1 lateral sulcus cable trough rmc monomer, it is characterized in that, described tunnel lateral sulcus cable trough rmc monomer comprises Liang Ge cable trough district, a lateral sulcus district, a spareslots district; Wherein, Liang Ge cable trough district with described lateral sulcus district for symmetrical centre is symmetrical arranged; The upper surface of described spareslots is closed, and is in the below in the cable trough district away from tunnel road surface.
4. tunnel as claimed in claim 2 lateral sulcus cable trough rmc monomer, is characterized in that, also comprise cover plate, and described cover plate covers the upper shed of tunnel lateral sulcus cable trough rmc monomer.
5. a tunnel lateral sulcus cable trough combining structure, it is characterized in that, be in series by tunnel lateral sulcus cable trough rmc monomer described in multiple any one of claim 1-4, the link contact of adjacent two described tunnel lateral sulcus cable trough rmc monomers, the spacing connected between adjacent two described tunnel lateral sulcus cable trough rmc monomers is less than 8 millimeters, and faulting of slab ends is less than 5 millimeters.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104821534A (en) * | 2015-04-28 | 2015-08-05 | 中铁工程设计咨询集团有限公司 | Side channel cable trough combined body, preparation method and side channel cable trough combined structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104821534A (en) * | 2015-04-28 | 2015-08-05 | 中铁工程设计咨询集团有限公司 | Side channel cable trough combined body, preparation method and side channel cable trough combined structure |
| CN104821534B (en) * | 2015-04-28 | 2018-09-21 | 中铁工程设计咨询集团有限公司 | Lateral sulcus cable trough rmc monomer and preparation method and lateral sulcus cable trough composite structure |
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