CN204475362U - Cast-in-place toe formula reinforced concrete storage basis - Google Patents
Cast-in-place toe formula reinforced concrete storage basis Download PDFInfo
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- CN204475362U CN204475362U CN201420848568.4U CN201420848568U CN204475362U CN 204475362 U CN204475362 U CN 204475362U CN 201420848568 U CN201420848568 U CN 201420848568U CN 204475362 U CN204475362 U CN 204475362U
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Abstract
Cast-in-place toe formula reinforced concrete storage basis, belongs to the storage basic technology field of chemicals etc.It comprises basic pile foundation, basic plain concrete cushion layer, Base isolation system and bitumen sand cushion, described basic plain concrete cushion layer is arranged between basic pile foundation and Base isolation system, bitumen sand cushion is arranged on above Base isolation system, arrange plain concrete layer between Base isolation system and bitumen sand cushion, the peripheral downside on this reinforced concrete storage basis is provided with concrete toe.The utility model by arrange between Base isolation system and bitumen sand cushion plain concrete layer to replace in traditional tank foundation structure between Base isolation system and bitumen sand cushion, coarse sand bed course, simplify construction technology, reduce difficulty of construction, accelerating construction progress, anti-seismic performance be good; Base isolation system is changed into toe formula Base isolation system simultaneously, effectively can improve the shock resistance of tank foundation, effectively can reduce the quantity of pile foundation under the soft foundation of high earthquake intensity, reduce investment.
Description
Technical field
The utility model belongs to the storage basic technology field of chemicals etc., is specifically related to a kind of cast-in-place toe formula reinforced concrete storage basis with advantages such as soil rigidity are good, reinforcement ratio is low, difficulty of construction is low, construction speed is fast, anti-seismic performance is good, reduce investment outlay.
Background technology
Traditional tank foundation structure generally comprise from bottom to top 100 thick plain concrete cushion layer, the solid tank foundation of cast-in-situ steel reinforced concrete, in, coarse sand bed course, bitumen sand cushion.Wherein, the Main Function of coarse sand bed course is the differential settlement that can adjust tank foundation.But for the middle-size and small-size storage tank in the not dark chemicals of southern area frost penetration, oil storage and transportation engineering, (tank capacity is not more than 20,000 m
3) pile foundation of Storage Tank Foundation Design gene basis can carry out level-adjust design, even if the differential settlement that pile foundation does not carry out level-adjust design tank foundation generally also can control in the scope of regulation and stipulation, therefore, the effect of coarse sand bed course is not obvious.And in, the difficulty of construction of coarse sand bed course is comparatively large, when adopting construction machinery compacting, on the one hand, the coefficient of consolidation of coarse sand is difficult to ensure; Surface of base easily becomes waveform because extruding on the other hand.Therefore in, to there is adjustment foundation deformation effect in coarse sand bed course not obvious; There is the shortcoming that difficulty of construction is large, construction quality is difficult to guarantee and long construction period.
Tank field project is in order to convenient transportation in addition, saves running cost, and the general coastal riverine layout in project construction ground, build ubiquity mucky soil in place, engineering geological conditions is poor.In the weak foundation soil area of high earthquake intensity, the horizontal seismic force that tank foundation bears is comparatively large, and the vertical bearing capacity characteristic value ratio of this intermediate item often single pile is easier to meet, and the horizontal bearing capacity characteristic value of single pile not easily meets.When the quantity of stake is controlled by horizontal bearing capacity characteristic value, project investment can increase.
Utility model content
For the above-mentioned problems in the prior art, the purpose of this utility model is to provide a kind of cast-in-place toe formula reinforced concrete storage basis with advantages such as soil rigidity are good, reinforcement ratio is low, difficulty of construction is low, construction speed is fast, anti-seismic performance is good, reduce investment outlay.Mainly for the middle-size and small-size storage tank in the chemicals in southern high earthquake intensity weak foundation soil area, oil storage and transportation engineering, (tank capacity is not more than 20,000 m for it
3) the defect that exists of traditional Storage Tank Foundation Design improve.
Described cast-in-place toe formula reinforced concrete storage basis, comprise basic pile foundation, basic plain concrete cushion layer, Base isolation system and bitumen sand cushion, described basic plain concrete cushion layer is arranged between basic pile foundation and Base isolation system, bitumen sand cushion is arranged on above Base isolation system, it is characterized in that arranging plain concrete layer between described Base isolation system and bitumen sand cushion, the peripheral downside on this reinforced concrete storage basis is provided with concrete toe.
Described cast-in-place toe formula reinforced concrete storage basis, is characterized in that described concrete toe is connected with bottom Base isolation system periphery.
Described cast-in-place toe formula reinforced concrete storage basis, is characterized in that described Base isolation system is toe formula Base isolation system.
By adopting above-mentioned technology, the utility model is by the level-adjust design to basis, with plain concrete instead of in traditional tank foundation structure, coarse sand bed course, the concrete toe be connected with Base isolation system is set in the peripheral downside on reinforced concrete storage basis simultaneously, play and reduce difficulty of construction, accelerating construction progress, raising anti-seismic performance, the object of reducing investment outlay, compared with existing Storage Tank Foundation Design, there is following beneficial effect:
1) soil rigidity is good, and rolled steel dosage is economized: the thickness of cast-in-place toe formula reinforced concrete storage configurations reinforcing bar is only Base isolation system part, and not containing plain concrete soil part, amount of reinforcement is relatively economical; And the thickness on whole basis comprises Base isolation system part and plain concrete soil part, soil rigidity is larger;
2) reduce difficulty of construction, accelerating construction progress: during difficulty of construction is maximum, construction quality is relatively unmanageable, coarse sand bed course cancel, adopt plain concrete substitute.Plain concrete layer can be considered and Base isolation system primary concreting, reduces difficulty of construction and saves one working procedure, accelerating construction speed;
3) anti-seismic performance of tank foundation is improved: when the dry density of backfilled soil of regulation and stipulation around tank foundation meets the requirement in " Code for design of building ", can be banketed and stake shared horizontal earthquake action by cushion cap front.The concrete toe be connected with Base isolation system is set in the peripheral downside of tank foundation and can increases substantially the passive earth pressure banketed in cushion cap front, improve the shock resistance of tank foundation;
4) reduce investment outlay: cast-in-place toe formula reinforced concrete storage basis plain concrete instead of in traditional tank foundation structure, coarse sand bed course, although in the cost ratio of plain concrete material, coarse sand bed course is expensive, but consider the engineering time of saving and artificial, the machinery expenses of saving, comprehensive cost is still cheap.The peripheral downside of tank foundation arranges the concrete toe that is connected with the Base isolation system regional shock resistance that effectively can improve tank foundation of weak foundation soil at high earthquake intensity (7 degree of 0.15g and more than) in addition, and the quantity of minimizing pile foundation, reduces investment outlay.
Accompanying drawing explanation
Fig. 1 is the plane structure schematic diagram of the utility model tank foundation;
Fig. 2 is longitudinal part section structure for amplifying schematic diagram of the utility model tank foundation;
In figure: the pile foundation of 1-basis, 2-basis plain concrete cushion layer, 3-concrete toe, 4-Base isolation system, 5-plain concrete layer, 6-bitumen sand cushion.
Detailed description of the invention
Below in conjunction with Figure of description, the utility model is described in further detail:
As shown in Figure 1-2, cast-in-place toe formula reinforced concrete storage basis, comprise basic pile foundation 1, basis plain concrete cushion layer 2, Base isolation system 4 and bitumen sand cushion 6, described Base isolation system 4 is toe formula Base isolation system, described basic plain concrete cushion layer 2 is arranged between basic pile foundation 1 and Base isolation system 4, bitumen sand cushion 6 is arranged on above Base isolation system 4, in order to improve the shock resistance of tank foundation, the utility model arranges in the peripheral downside of tank foundation the concrete toe 3 be connected with Base isolation system 4, in order to reduce difficulty of construction, accelerating construction progress, the utility model Base isolation system 4 and bitumen sand cushion 6 two-layer between plain concrete layer 5 is set, for replacing in traditional tank foundation structure, coarse sand bed course.
As shown in Figure 2, the utility model is when the basic engineering of storage tank, level-adjust design is adopted to basis, with plain concrete layer 5 instead of in traditional tank foundation structure, coarse sand bed course, the concrete toe 3 be connected with Base isolation system 4 is set in the peripheral downside on reinforced concrete storage basis simultaneously, change three road working procedures into by four original road working procedures, play the object simplifying construction technology process, reduce difficulty of construction, reduce investment outlay; And the thickness of tank foundation configuration reinforcement is only Base isolation system 4 part, not containing the native part in plain concrete layer 5, amount of reinforcement is relatively economical; And the thickness on whole basis comprises Base isolation system 4 part and the native part of plain concrete layer 5, soil rigidity is larger; Meanwhile, the peripheral downside of tank foundation arranges the concrete toe 3 be connected with Base isolation system 4 and can increase substantially the passive earth pressure banketed in cushion cap front, improves the shock resistance of tank foundation.
(tank capacity is not more than 20,000 m to the middle-size and small-size storage tank that tank foundation of the present utility model is specially adapted in the chemicals in southern high earthquake intensity weak foundation soil area, oil storage and transportation engineering
3) basis, it is good that the tank foundation form that this technology and existing " steel storage tank basic design specification of the foundation " are recommended has soil rigidity, the advantages such as reinforcement ratio is low, difficulty of construction is low, construction speed is fast, anti-seismic performance is good, reduce investment outlay.
Claims (3)
1. cast-in-place toe formula reinforced concrete storage basis, comprise basic pile foundation (1), basic plain concrete cushion layer (2), Base isolation system (4) and bitumen sand cushion (6), described basic plain concrete cushion layer (2) is arranged between basic pile foundation (1) and Base isolation system (4), bitumen sand cushion (6) is arranged on above Base isolation system (4), it is characterized in that arranging plain concrete layer (5) between described Base isolation system (4) and bitumen sand cushion (6), the peripheral downside on this reinforced concrete storage basis is provided with concrete toe (3).
2. cast-in-place toe formula reinforced concrete storage basis according to claim 1, is characterized in that the peripheral bottom of described concrete toe (3) and Base isolation system (4) is connected.
3. cast-in-place toe formula reinforced concrete storage basis according to claim 1, is characterized in that described Base isolation system (4) is for toe formula Base isolation system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420848568.4U CN204475362U (en) | 2014-12-29 | 2014-12-29 | Cast-in-place toe formula reinforced concrete storage basis |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420848568.4U CN204475362U (en) | 2014-12-29 | 2014-12-29 | Cast-in-place toe formula reinforced concrete storage basis |
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| CN204475362U true CN204475362U (en) | 2015-07-15 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109356188A (en) * | 2018-11-15 | 2019-02-19 | 中海石油气电集团有限责任公司 | A kind of hardened structure of double rafts and preparation method thereof on LNG storage tank basis |
| CN113700025A (en) * | 2021-07-22 | 2021-11-26 | 浙江省天正设计工程有限公司 | Cast-in-place hollow floor cover type storage tank leveling foundation arranged in fan shape and construction method thereof |
-
2014
- 2014-12-29 CN CN201420848568.4U patent/CN204475362U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109356188A (en) * | 2018-11-15 | 2019-02-19 | 中海石油气电集团有限责任公司 | A kind of hardened structure of double rafts and preparation method thereof on LNG storage tank basis |
| CN109356188B (en) * | 2018-11-15 | 2024-04-30 | 中海石油气电集团有限责任公司 | Double raft structure of LNG storage tank foundation and manufacturing method thereof |
| CN113700025A (en) * | 2021-07-22 | 2021-11-26 | 浙江省天正设计工程有限公司 | Cast-in-place hollow floor cover type storage tank leveling foundation arranged in fan shape and construction method thereof |
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