CN103046576A - Pile foundation of high-precision device and foundation slab micro-deformation and vibration control method of pile foundation - Google Patents
Pile foundation of high-precision device and foundation slab micro-deformation and vibration control method of pile foundation Download PDFInfo
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- CN103046576A CN103046576A CN2013100203340A CN201310020334A CN103046576A CN 103046576 A CN103046576 A CN 103046576A CN 2013100203340 A CN2013100203340 A CN 2013100203340A CN 201310020334 A CN201310020334 A CN 201310020334A CN 103046576 A CN103046576 A CN 103046576A
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Abstract
The invention discloses a foundation slab micro-deformation and vibration control method of a pile foundation of high-precision device. The method comprises steps of providing a bottom plate and a side wall which are integrated and are vertical, separating the bottom plate from the side wall, arranging a long pile at the bottom of the bottom plate and arranging a short pile at the bottom of the side wall. The bottom plate and the side wall are separated permanently, the load on the bottom plate is reduced greatly, the long pipe is arranged on the bottom plate so as to solve the micro-deformation problem, the bottom plate and the side wall are separated, settlement requirements of the side wall and the bottom plate are not consistent, settlement requirements can be reduced greatly, the side wall region uses the economical pile foundation, and the micro-vibration can be effectively controlled due to the fact that the long pile is arranged at the bottom of the bottom plate.
Description
Technical field
The present invention relates to field of civil engineering, relate in particular to a kind of little distortion of sole plate and vibration control method of pile foundation of high-precision equipment.
Background technology
In the design of high-precision equipment device, highly sophisticated device has very strict requirement to distortion and the vibration on basis, and this requirement is higher than the deformation requirements of general industry building far away.In addition, be the protection precision equipment, the structure of place apparatus device is also more firm than the general industry building.
The method that solves sedimentation for soft clay area generally is in the high-precision equipment bottom pile foundation to be set, and controls foundation settlement by the size of adjusting pile top load, thus the control bottom deformation.The high-precision equipment device is as adopting the conventional structure form to design pile foundation, by calculating, owing to the structure own wt that designs for the erection equipment device far overweights general structure, add experimental facilities self load, under base plate, need to arrange a large amount of pile foundations, less economical, simultaneously because load is large, Deformation control difficulty to base plate is also large, and technical difficulty is large.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of little distortion of sole plate of the pile foundation that can effectively control high-precision equipment and the method for vibration.
In order to solve this technical problem, the invention provides a kind of little distortion of sole plate and vibration control method of pile foundation of high-precision equipment, integrated base plate and side wall at first are provided, described side wall is perpendicular to described base plate, then described base plate and described side wall are thrown off, long stake is set in the bottom of described base plate at last, in the bottom of described side wall stub is set.
Inner wall surface along described side wall between described base plate and the described side wall is thrown off.
After described base plate and the disengagement of described side wall, also waterproofing work is carried out in disengagement place of described side wall and base plate.
Described long stake employing diameter is 600 millimeters inlet well castinplace pile.Described long pile length is 48 meters.
Described stub employing diameter is 400 millimeters prestressed high strength concrete pile tube (PHC pile tube).The length of described stub is 22 meters.
The present invention also provides a kind of pile foundation of high-precision equipment, comprise base plate and side wall, described side wall is perpendicular to described base plate, and described side wall and described base plate are thrown off along the inner wall surface of described side wall, the bottom of described base plate is provided with long stake, and the bottom of described side wall is provided with stub.
Described side wall and described base plate are equipped with water-tight device in disengagement place.
Described long stake employing diameter is 600 millimeters inlet well castinplace pile.
Described long pile length is 48 meters.
Described stub employing diameter is 400 millimeters prestressed high strength concrete pile tube.
The length of described stub is 22 meters.
The present invention is by forever throwing off base plate and side wall, and load reduces greatly on the base plate, arranges that under base plate long stake has namely solved little problem on deformation; In addition, throw off by base plate and side wall, because side wall is no longer consistent with base plate to settlement request, can greatly relax settlement request, more economical end pile foundation can be adopted in the side wall zone; Simultaneously, adopt long pile foundation can effectively control little vibration in the base plate bottom.The invention provides a kind of little distortion of sole plate of the pile foundation that can effectively control high-precision equipment and the method for vibration.
Description of drawings
Fig. 1 is the sectional drawing of the pile foundation of the high-precision equipment that provides of one embodiment of the invention;
Among the figure, 1-stub; 2-long stake; 3-base plate; 4-disengagement place; 5-side wall; 6-pipe-line equipment sandwich; 7-accommodation space; 8-pipe-line equipment.
The specific embodiment
Below with reference to Fig. 1 the pile foundation of high-precision equipment provided by the invention and the method for the little distortion of sole plate and vibration thereof are described in detail, it is the present invention's one optional embodiment, can think that those skilled in the art can make amendment to it in the scope that does not change the present invention spirit and content and polishes according to known general knowledge.
The present embodiment provides a kind of little distortion of sole plate and vibration control method of pile foundation of high-precision equipment, please refer to Fig. 1, a kind of box X ray free-electron laser experimental rig of the method that adopted the present embodiment and provide is provided for it, integrated base plate 3 and side wall 5 at first are provided, described side wall 5 is perpendicular to described base plate 3, then described base plate 3 and described side wall 5 are thrown off, long stake 2 is set in the bottom of described base plate 3 at last, in the bottom of described side wall 5 stub 1 is set.The described stub 1 that the present embodiment provides be connected stake and 2 be connected with external structure respectively.The architecture basics of the experimental rig in the present embodiment is long stake 2, and its quantity is 2, and in other embodiment of the present invention, its architecture basics is long stake 2, and the quantity of long stake 2 and stub 1, material, length, size etc. all are complementary with the weight and size of installing etc.
The method of the little distortion of the sole plate of the pile foundation of the high-precision equipment that the present embodiment provides and vibration does not limit with regard to concrete means and the method for throwing off, and the permanent disengagement that need satisfy both can be thought and dropped in protection scope of the present invention.
The present embodiment is by forever throwing off base plate 3 and side wall 5, and load reduces greatly on the base plate 3, arranges that at base plate long stake 2 has namely solved little problem on deformation for 3 times; In addition, throw off by base plate 3 and side wall 5, because 5 pairs of settlement requests of side wall are no longer consistent with base plate 3, can greatly relax settlement request, more economical end pile foundation can be adopted in side wall 5 zones; Simultaneously, adopt long pile foundation can effectively control little vibration in base plate 3 bottoms.The present embodiment provides a kind of little distortion of sole plate of the pile foundation that can effectively control high-precision equipment and the method for vibration
Inner wall surface along described side wall 5 between described base plate 3 and the described side wall 5 is thrown off.Please refer to Fig. 1, namely throw off along disengagement place 4.Safety that can assurance device also can realize the disengagement between base plate 3 and the side wall 5, thereby so that the weight load of side wall 5 is not attached on the base plate 3, has reduced load and then solved deformation problems.
After described base plate 3 and described side wall 5 are thrown off, also waterproofing work is carried out in disengagement place 4 of described side wall 5 and base plate 3.Prevent in the underground water access arrangement device, prevent that namely underground water from entering in the accommodation space 7.
Described long stake employing diameter is 600 millimeters inlet well castinplace pile.Described long pile length is 48 meters.Described stub employing diameter is 400 millimeters prestressed high strength concrete pile tube (PHC pile tube).The length of described stub is 22 meters.
Please continue to consult Fig. 1, the present embodiment also provides a kind of pile foundation of high-precision equipment, be a kind of pile foundation of box X ray free-electron laser experimental rig in the present embodiment, described side wall 5 is thrown off along the inner wall surface of described side wall 5 with described base plate 3, the bottom of described base plate 3 is provided with long stake 2, and the bottom of described side wall is provided with stub 1.
Described side wall 5 is equipped with the water-tight device (not shown) with described base plate 3 in disengagement place.
Described long stake 2 employing diameters are 600 millimeters inlet well castinplace pile.The length of described long stake 2 is 48 meters.Described stub 1 employing diameter is 400 millimeters prestressed high strength concrete pile tube.The length of described stub 1 is 22 meters.
The present embodiment is thrown off base plate 3 and side wall 5 in disengagement place 4, so that the load of side wall 5, pipe-line equipment sandwich 6, pipe-line equipment 8 can not be delivered on the base plate 3.Then long stake 2 is set in base plate 3 bottoms, in side wall 5 bottoms stub 1 is set.φ 600 grouting behind shaft or drift lining bored piles are adopted in long stake 2 in base plate 3 bottoms, the long 48m of stake, bearing course at pile end is the 7-2 layer, it is 400 millimeters prestressed high strength concrete pile tube that the stub of side wall 5 bottoms 1 adopts the stake type to select φ 400PHC(diameter) pile tube, the long 22m of stake, bearing course at pile end is the 5-2 layer.Compare and do not adopt this method, when entirely adopting φ 600 grouting behind shaft or drift lining bored piles (the long 48m of stake, bearing course at pile end is the 7-2 layer) under base plate and the side wall, greatly save the pile foundation cost, little Deformation control difficulty also reduces greatly, also is beneficial to little vibration isolation simultaneously.
Claims (13)
1. the little distortion of the sole plate of the pile foundation of a high-precision equipment and vibration control method, it is characterized in that: comprise the steps, at first, provide integrated base plate and side wall, described side wall is perpendicular to described base plate; Then, described base plate and described side wall are thrown off; At last, in the bottom of described base plate long stake is set, in the bottom of described side wall stub is set.
2. the little distortion of the sole plate of the pile foundation of high-precision equipment as claimed in claim 1 and vibration control method is characterized in that: the inner wall surface along described side wall between described base plate and the described side wall is thrown off.
3. the little distortion of the sole plate of the pile foundation of high-precision equipment as claimed in claim 1 and vibration control method is characterized in that: after described base plate and the disengagement of described side wall, also waterproofing work is carried out in disengagement place of described side wall and base plate.
4. the little distortion of the sole plate of the pile foundation of high-precision equipment as claimed in claim 1 and vibration control method is characterized in that: it is 600 millimeters inlet well castinplace pile that diameter is adopted in described long stake.
5. the little distortion of the sole plate of the pile foundation of high-precision equipment as claimed in claim 4 and vibration control method, it is characterized in that: described long pile length is 48 meters.
6. the little distortion of the sole plate of the pile foundation of high-precision equipment as claimed in claim 1 and vibration control method is characterized in that: it is 400 millimeters prestressed high strength concrete pile tube that described stub adopts diameter.
7. the little distortion of the sole plate of the pile foundation of high-precision equipment as claimed in claim 6 and vibration control method, it is characterized in that: the length of described stub is 22 meters.
8. the pile foundation of a high-precision equipment, comprise base plate and side wall, described side wall is characterized in that perpendicular to described base plate: described side wall and described base plate are thrown off along the inner wall surface of described side wall, the bottom of described base plate is provided with long stake, and the bottom of described side wall is provided with stub.
9. the pile foundation of high-precision equipment as claimed in claim 8, it is characterized in that: described side wall and described base plate are equipped with water-tight device in disengagement place.
10. the pile foundation of high-precision equipment as claimed in claim 8 is characterized in that: it is 600 millimeters inlet well castinplace pile that diameter is adopted in described long stake.
11. the pile foundation of high-precision equipment as claimed in claim 10 is characterized in that: described long pile length is 48 meters.
12. the pile foundation of high-precision equipment as claimed in claim 8 is characterized in that: described stub employing diameter is 400 millimeters prestressed high strength concrete pile tube.
13. the pile foundation of high-precision equipment as claimed in claim 12 is characterized in that: the length of described stub is 22 meters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310020334.0A CN103046576B (en) | 2013-01-18 | 2013-01-18 | Pile foundation of high-precision device and foundation slab micro-deformation and vibration control method of pile foundation |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310020334.0A CN103046576B (en) | 2013-01-18 | 2013-01-18 | Pile foundation of high-precision device and foundation slab micro-deformation and vibration control method of pile foundation |
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| CN103046576A true CN103046576A (en) | 2013-04-17 |
| CN103046576B CN103046576B (en) | 2015-01-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106245692A (en) * | 2016-08-30 | 2016-12-21 | 中国建筑西南勘察设计研究院有限公司 | Reinforcement pile construction method is sunk in soft soil foundation control |
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| CN106245692A (en) * | 2016-08-30 | 2016-12-21 | 中国建筑西南勘察设计研究院有限公司 | Reinforcement pile construction method is sunk in soft soil foundation control |
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