CN208251141U - A kind of cold box foundation structure using expanded-sand concrete prefabricated board - Google Patents

A kind of cold box foundation structure using expanded-sand concrete prefabricated board Download PDF

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CN208251141U
CN208251141U CN201820501823.6U CN201820501823U CN208251141U CN 208251141 U CN208251141 U CN 208251141U CN 201820501823 U CN201820501823 U CN 201820501823U CN 208251141 U CN208251141 U CN 208251141U
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layer
proof
freeze proof
concrete
expanded
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董明吉
袁轶敏
周渊
费小亮
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HANGZHOU HANGYANG CHEMICAL AND PHARMACEUTICAL ENGINEERING CO LTD
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HANGZHOU HANGYANG CHEMICAL AND PHARMACEUTICAL ENGINEERING CO LTD
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Abstract

The utility model discloses a kind of cold box foundation structures using expanded-sand concrete prefabricated board, its structure includes plain concrete cushion layer, first freeze proof water-proof concrete layer, the freeze proof waterproof mortar of M15 smoothes out layer, stainless steel plate water barrier, second freeze proof water-proof concrete layer, first waterproof mortar smoothes out layer, cold separated layer, second waterproof mortar smoothes out layer and the freeze proof waterproof pea gravel concreten layer of C60, high pressure is marked with the freeze proof waterproof mortar of C60 grade in gap between cold separated layer and adjacent layer, first freeze proof water-proof concrete layer is as basic outer groove, second freeze proof water-proof concrete layer is as basic ontology, ice chest bottom is fixed on the second freeze proof water-proof concrete layer by pre-embedded bolt, ice chest exit end is located at cold separated layer top.The utility model substitutes cast in situs expanded-sand concrete layer by using the expanded-sand concrete plate of prefabrication specific dimensions, solves difficult point of the expanded-sand concrete in transport, cast in situs, maintenance processes, shortens the construction period of cold box foundation.

Description

A kind of cold box foundation structure using expanded-sand concrete prefabricated board
Technical field
The utility model belongs to construction engineering technical field, and in particular to a kind of using the cold of expanded-sand concrete prefabricated board Box foundation structure.
Background technique
Air separation cooling box operate normally when Equipment Foundations surface temperature between+30 DEG C ~ -90 DEG C, and when ice chest run Equipment itself meeting leakage when improper or failure, the liquid minimum temperature spilt can be cold in order to prevent down to -196 DEG C Box foundation is by cryogenic liquid freeze-thaw damage, during large air separation plant foundation construction, surface of base would generally use 200 ~ The thick cast-in-place expanded-sand concrete of 300mm protects it as cold separated layer.
There are various problems, especially expanded-sand concretes during the site operation of current cold box foundation Normal practice It transports, pour and maintenance processes, and after expanded-sand concrete layer cast in situs, it is necessary to carry out live antifreezing test, such as Freeze proof requirement as defined in specification is not achieved in fruit site test results, needs to root out expanded-sand concrete flood and pours one again Time, it certainly will thus influence the construction period of entire project.
Utility model content
For the above-mentioned problems in the prior art, it is mixed using pearlife that the purpose of this utility model is to provide a kind of The cold box foundation structure of solidifying soil prefabricated board substitutes cast in situs by using the expanded-sand concrete plate of prefabrication specific dimensions Expanded-sand concrete layer solves difficult point of the expanded-sand concrete in transport, cast in situs, maintenance processes, shortens ice chest The construction period on basis.
A kind of cold box foundation structure using expanded-sand concrete prefabricated board, it is characterised in that from bottom to up successively Layer, stainless steel plate water barrier, the are smoothed out including plain concrete cushion layer, the freeze proof waterproof mortar of the first freeze proof water-proof concrete layer, M15 Two freeze proof water-proof concrete layers, the first waterproof mortar smooth out layer, cold separated layer, the second waterproof mortar and smooth out layer and the freeze proof waterproof of C60 Pea gravel concreten layer, high pressure is marked with the freeze proof waterproof mortar of C60 grade in the gap between cold separated layer and adjacent layer, and first is freeze proof anti- Water coagulation soil layer is as basic outer groove, and for the second freeze proof water-proof concrete layer as basic ontology, ice chest bottom passes through pre-embedded bolt It is fixed on the second freeze proof water-proof concrete layer, ice chest exit end is located at cold separated layer top.
A kind of cold box foundation structure using expanded-sand concrete prefabricated board, it is characterised in that the cold separated layer is Expanded-sand concrete prefabricated board, expanded-sand concrete prefabricated board with a thickness of 200 ~ 300mm.
A kind of cold box foundation structure using expanded-sand concrete prefabricated board, it is characterised in that the first waterproof mortar Smooth out layer, the second waterproof mortar floating layer is that the freeze proof waterproof mortar of M20 smoothes out layer.
A kind of cold box foundation structure using expanded-sand concrete prefabricated board, it is characterised in that the freeze proof waterproof of C60 Pea gravel concreten layer with a thickness of 100mm.
A kind of cold box foundation structure using expanded-sand concrete prefabricated board, it is characterised in that the freeze proof waterproof of C60 Steel mesh is equipped in pea gravel concreten layer.
The construction method of the cold box foundation structure using expanded-sand concrete prefabricated board, it is characterised in that including such as Lower step:
1) line setting, multiple line are carried out by design requirement, is poured using C15 or C20 plain concrete, obtains plain concrete pad Layer, pours with a thickness of 100mm;
2) construction of the first freeze proof water-proof concrete layer: the template of the freeze proof water-proof concrete layer of supporting first, form height For 1.5-2.5m, basic bottom absolute altitude is -3.5m, and steel reinforcement cage binds and rechecks examination, pours freeze proof water-proof concrete, maintenance, is mixed Solidifying soil reaches form removal after requirement, and the first freeze proof water-proof concrete layer is examined and checked and accepted, anti-first after acceptance(check) Freeze the outer side brush anti-corrosion material coating of water-proof concrete layer;
3) the freeze proof waterproof mortar of M15 smoothes out the construction of layer: obtaining the second freeze proof water-proof concrete layer top surface in step 2 and uses The freeze proof waterproof mortar of M15 is smoothed out, and the second freeze proof water-proof concrete layer is obtained;
4) stainless steel water-stop sheet, water proof the installation of stainless steel plate water barrier: are installed in the first freeze proof water-proof concrete layer Plate thickness is 3 ~ 6mm or so, and gap is no more than 5mm between the outer groove sidewall of water-stop sheet and basis;
5) construction of the second freeze proof water-proof concrete layer: the template of the freeze proof water-proof concrete layer of supporting second, form height For 2.4m, steel reinforcement cage binding location and installation ventilation duct and pre-embedded bolt and is checked in the layer, while the second freeze proof anti-water coagulation The regional space of cold separated layer is reserved in soil layer and rechecks examination, pours freeze proof water-proof concrete, maintenance, concrete reaches requirement Form removal afterwards, and the second freeze proof water-proof concrete layer is examined and checked and accepted;
6) the first waterproof mortar smoothes out the construction of layer: the regional space bottom surface for the cold separated layer reserved in step 5) is adopted It is smoothed out with the freeze proof waterproof mortar of M20, constitutes the first waterproof mortar and smooth out layer;
7) it is prefabricated that expanded-sand concrete the construction of cold separated layer: is laid in the regional scope for the cold separated layer reserved in step 5) Plate obtains cold separated layer;
8) construction of the freeze proof waterproof mortar of C60 grade: by the freeze proof waterproof mortar injection step of C60 by the way of high-pressure slip-casting It in gap between rapid expanded-sand concrete prefabricated board 7) and pours closely knit, obtains the freeze proof waterproof mortar of C60 grade, conserve 6-10 It;
9) the second waterproof mortar smoothes out the construction of layer: after the freeze proof waterproof mortar maintenance of C60 grade, in pearlife coagulation The prefabricated plate surface of soil is smoothed out using the freeze proof waterproof mortar of M20, is obtained the second waterproof mortar and is smoothed out layer;
10) ice chest ontology steel column is installed: ice chest ontology steel column being connected and fixed with pre-embedded bolt, for installing ice chest;
11) it the construction of the freeze proof waterproof pea gravel concreten layer of C60: is smoothed out in the second waterproof mortar and is laid with 12 200x200 on layer Steel mesh, then pour the freeze proof waterproof pea gravel concreten of C60, obtain the freeze proof waterproof pea gravel concreten layer of C60.
The construction method of the cold box foundation structure using expanded-sand concrete prefabricated board, it is characterised in that step 2 In concrete antifreezing label be not less than D75, water proof anti-seepage grade be not less than P12, strength grade of concrete be not less than C30.
The construction method of the cold box foundation structure using expanded-sand concrete prefabricated board, it is characterised in that step 2 In anti-corrosion material coating be bituminous epoxy, thickness be not less than 500 microns.
The construction method of the cold box foundation structure using expanded-sand concrete prefabricated board, it is characterised in that step 5) In base matrix concrete antifreezing label be not less than D75, water proof anti-seepage grade is not less than P12, and strength grade of concrete is low In C30.
By using above-mentioned technology, compared with conventional construction technology, the advantages of the utility model, is embodied in:
1) the cold separated layer construction of the utility model is spliced by using expanded-sand concrete prefabricated board scene, is disposed at In second freeze proof water-proof concrete layer in reserved area, effectively feel easily to generate during transportation because of expanded-sand concrete Segregation phenomenon, and avoid the problems such as pearlife particle in work progress is destroyed, its curing condition requirement is harsh, construction party Method is simpler, easy to operate, and construction efficiency is high, high-quality;
2) the utility model avoids expanded-sand concrete and is destroyed in transport, cast in situs, maintenance, affects every cold Effect, the Auto-regulating System of Density of Heavy Medium of expanded-sand concrete prefabricated board during factory manufacturing is more controllable, without considering the pressure of construction thickness Than K, maintenance is without the concern for outdoor weather factor in factory, and resistance to compression, antifreezing test are carried out before factory for contracting, after detection qualification again To scene splicing installation, live resistance to compression, antifreezing test detection are eliminated, is had the characteristics that more environmentally friendly, more energy efficient.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
In figure: 1- plain concrete cushion layer, the freeze proof water-proof concrete layer of 2- first, the freeze proof waterproof mortar of 3-M15 smooth out layer, 4- Stainless steel plate water barrier, the freeze proof water-proof concrete layer of 5- second, the first waterproof mortar of 6- smooth out layer, 7- cold separated layer, and 8- second prevents Water sand slurry floating layer, the freeze proof waterproof pea gravel concreten layer of 9-C60, the freeze proof waterproof mortar of 10-C60 grade, 11- ice chest, 12- are pre-buried Bolt.
Specific embodiment
Below in conjunction with Figure of description, the utility model will be further described, but the protection scope of the utility model is simultaneously It is not limited only to this:
As shown in Figure 1, a kind of cold box foundation structure using expanded-sand concrete prefabricated board of the utility model, from down toward On successively include that plain concrete cushion layer 1, the freeze proof waterproof mortar of the first freeze proof water-proof concrete layer 2, M15 smooth out layer 3, stainless steel plate Water barrier 4, the second freeze proof water-proof concrete layer 5, the first waterproof mortar smooth out layer 6, cold separated layer 7, the second waterproof mortar and smooth out layer 8 And the freeze proof waterproof pea gravel concreten layer 9 of C60, high pressure is marked with the freeze proof waterproof of C60 grade in the gap between cold separated layer 7 and adjacent layer Mortar 10, the first freeze proof water-proof concrete layer 2 is as basic outer groove, and the second freeze proof water-proof concrete layer 5 is as basic ontology, position In 4 inside of stainless steel plate water barrier, stainless steel plate water barrier 4 is arranged in the first freeze proof water-proof concrete layer 2, and is groove profile knot Structure, 11 bottom of ice chest are fixed on the second freeze proof water-proof concrete layer 5 by pre-embedded bolt 12,11 exit end of ice chest be located at every 7 top of cooling layer.
For the ease of construction, the utility model is by the cold separated layer 7 using the expanded-sand concrete with a thickness of 200 ~ 300mm Prefabricated board, scene are spliced to form, and are disposed in the second freeze proof water-proof concrete layer 5 in reserved area, effectively felt because Expanded-sand concrete during transportation easily generate segregation phenomenon, and avoid pearlife particle in work progress be destroyed, Its curing condition requires the problems such as harsh, and construction method is simpler, easy to operate, and construction efficiency is high, high-quality;
As shown, first waterproof mortar of the utility model smoothes out layer 6, the second waterproof mortar floating layer 8 is M20 anti- Freeze waterproof mortar and smoothes out layer;The freeze proof waterproof pea gravel concreten layer 9 of C60 with a thickness of 100mm;The freeze proof waterproof pea gravel concreten of C60 The steel mesh of 12@200x200 is equipped in layer 9.
The construction party of the utility model cold box foundation structure using expanded-sand concrete prefabricated board as shown in Figure 1 Method includes the following steps:
1) line setting, multiple line are carried out by design requirement, is poured using C15 or C20 plain concrete, obtains plain concrete pad Layer 1, pours with a thickness of 100mm;
2) construction of the first freeze proof water-proof concrete layer 2: the template of the freeze proof water-proof concrete layer 2 of supporting first, template are high Degree is 1.5-2.5m, and it using terrace surface absolute altitude is 0.000 plane as reference that basic bottom absolute altitude, which is -3.5m(, and steel reinforcement cage binds and answers It examines and receives, pour freeze proof water-proof concrete, maintenance, concrete reaches form removal after requirement, and to the first freeze proof anti-water coagulation Soil layer 2 is examined and is checked and accepted, after acceptance(check), in the first outer side brush anti-corrosion material coating of freeze proof water-proof concrete layer 2, agent on crack resistance of concrete Freeze label and be not less than D75, water proof anti-seepage grade is not less than P12, and strength grade of concrete is not less than C30, and anti-corrosion material coating is Bituminous epoxy, thickness are not less than 500 microns, preferably 600 microns;
3) the freeze proof waterproof mortar of M15 smoothes out the construction of layer 3: obtaining the second freeze proof 5 top surface of water-proof concrete layer in step 2 It is smoothed out with the freeze proof waterproof mortar of M15, obtains the second freeze proof water-proof concrete layer 5;
4) installation of stainless steel plate water barrier 4: installing stainless steel water-stop sheet in the first freeze proof water-proof concrete layer 2, every Water plate thickness is 3 ~ 6mm or so, and gap is no more than 5mm between the outer groove sidewall of water-stop sheet and basis;
5) construction of the second freeze proof water-proof concrete layer 5: the template of binding the second freeze proof water-proof concrete layer 5 of installation, mould Plate height is 2.4m, and steel reinforcement cage binding location and installation ventilation duct and pre-embedded bolt 12 and is checked, while second is freeze proof in the layer The regional space of cold separated layer 7 is reserved in water-proof concrete layer 5 and rechecks examination, pours freeze proof water-proof concrete, maintenance, coagulation Soil reaches form removal after requirement, and the second freeze proof water-proof concrete layer 5 is examined and checked and accepted, base matrix concrete antifreezing mark Number be not less than D75, water proof anti-seepage grade be not less than P12, strength grade of concrete be not less than C30;
6) the first waterproof mortar smoothes out the construction of layer 6: the regional space bottom of the cold separated layer 7 reserved in step 5) Surface is smoothed out using the freeze proof waterproof mortar of M20, is constituted the first waterproof mortar and is smoothed out layer 6;
7) construction of cold separated layer 7: expanded-sand concrete is laid in the regional scope of the cold separated layer 7 reserved in step 5) Prefabricated board obtains cold separated layer 7;
8) construction of the freeze proof waterproof mortar 10 of C60 grade: the freeze proof waterproof mortar of C60 is injected by the way of high-pressure slip-casting It in gap between the expanded-sand concrete prefabricated board of step 7) and pours closely knit, obtains the freeze proof waterproof mortar 10 of C60 grade, conserve 6-10 days;
9) the second waterproof mortar smoothes out the construction of layer 8: after the freeze proof waterproof mortar 10 of C60 grade conserves, in pearlife Concrete prefabricated plate surface is smoothed out using the freeze proof waterproof mortar of M20, is obtained the second waterproof mortar and is smoothed out layer 8;
10) ice chest ontology steel column is installed: ice chest ontology steel column and pre-embedded bolt 12 being connected and fixed, for installing ice chest;
11) it the construction of the freeze proof waterproof pea gravel concreten layer 9 of C60: is smoothed out in the second waterproof mortar and is laid with 12 on layer 8 The steel mesh of 200x200, then the freeze proof waterproof pea gravel concreten of C60 is poured, obtain the freeze proof waterproof pea gravel concreten layer 9 of C60.

Claims (5)

1. a kind of cold box foundation structure using expanded-sand concrete prefabricated board, it is characterised in that from bottom to up successively include that element is mixed Solidifying soil padding (1), the first freeze proof water-proof concrete layer (2), the freeze proof waterproof mortar of M15 smooth out layer (3), stainless steel plate water barrier (4), the second freeze proof water-proof concrete layer (5), the first waterproof mortar smooth out layer (6), cold separated layer (7), the floating of the second waterproof mortar Layer (8) and the freeze proof waterproof pea gravel concreten layer (9) of C60, high pressure is marked with C60 etc. in the gap between cold separated layer (7) and adjacent layer The freeze proof waterproof mortar (10) of grade, the first freeze proof water-proof concrete layer (2) is as basic outer groove, the second freeze proof water-proof concrete layer (5) as basic ontology, ice chest (11) bottom is fixed on the second freeze proof water-proof concrete layer (5) by pre-embedded bolt (12), Ice chest (11) exit end is located at cold separated layer (7) top.
2. a kind of cold box foundation structure using expanded-sand concrete prefabricated board according to claim 1, it is characterised in that The cold separated layer (7) be expanded-sand concrete prefabricated board, expanded-sand concrete prefabricated board with a thickness of 200 ~ 300mm.
3. a kind of cold box foundation structure using expanded-sand concrete prefabricated board according to claim 1, it is characterised in that First waterproof mortar smoothes out layer (6), the second waterproof mortar floating layer (8) is that the freeze proof waterproof mortar of M20 smoothes out layer.
4. a kind of cold box foundation structure using expanded-sand concrete prefabricated board according to claim 1, it is characterised in that The freeze proof waterproof pea gravel concreten layer (9) of C60 with a thickness of 100mm.
5. a kind of cold box foundation structure using expanded-sand concrete prefabricated board according to claim 1, it is characterised in that Steel mesh is equipped in the freeze proof waterproof pea gravel concreten layer (9) of C60.
CN201820501823.6U 2018-04-10 2018-04-10 A kind of cold box foundation structure using expanded-sand concrete prefabricated board Active CN208251141U (en)

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CN201820501823.6U CN208251141U (en) 2018-04-10 2018-04-10 A kind of cold box foundation structure using expanded-sand concrete prefabricated board

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Application Number Priority Date Filing Date Title
CN201820501823.6U CN208251141U (en) 2018-04-10 2018-04-10 A kind of cold box foundation structure using expanded-sand concrete prefabricated board

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CN208251141U true CN208251141U (en) 2018-12-18

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