CN211472562U - Large-scale hypervelocity centrifuge basis suitable for soft foundation - Google Patents
Large-scale hypervelocity centrifuge basis suitable for soft foundation Download PDFInfo
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- CN211472562U CN211472562U CN201921666871.1U CN201921666871U CN211472562U CN 211472562 U CN211472562 U CN 211472562U CN 201921666871 U CN201921666871 U CN 201921666871U CN 211472562 U CN211472562 U CN 211472562U
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Abstract
The utility model belongs to the technical field of water conservancy water and electricity, especially, relate to a large-scale hypervelocity centrifuge basis suitable for soft ground. The utility model provides a large-scale hypervelocity centrifuge basis suitable for weak ground makes large-scale hypervelocity centrifuge host computer vibration and foundation structure's self-oscillation frequency difference during operation more than 30%, through arranging big mass concrete block, the tip is embedded into a plurality of pile foundations of big mass concrete block, first vibration isolation seam, second vibration isolation seam can be in safety range with large-scale hypervelocity centrifuge at the maximum amplitude of operation during and foundation structure's self-oscillation frequency, and resonance phenomenon can not appear, and can also control the influence to building on every side during large-scale hypervelocity centrifuge operation effectively.
Description
Technical Field
The utility model belongs to the technical field of water conservancy water and electricity, especially, relate to a large-scale hypervelocity centrifuge basis suitable for soft ground.
Background
The large ultra-high speed centrifuge is an indispensable test means for researching large space-time evolution of rock-soil mass and deep substances of the earth and accelerating substance phase separation. The large-scale ultra-high-speed centrifuge test device is an important infrastructure, and can provide test conditions for test simulation related to time scale, such as deep ground engineering and environment, geological processes, alloy materials and the like.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a large-scale hypervelocity centrifuge basis suitable for soft ground to the large-scale hypervelocity centrifuge that maximum acceleration reaches 1000~1750 g.
To this end, the above object of the present invention is achieved by the following technical solutions:
the large-scale ultrahigh-speed centrifuge foundation suitable for the soft foundation is characterized by comprising an underground continuous wall, wherein the underground continuous wall is arranged along the periphery of the large-scale ultrahigh-speed centrifuge at a certain distance, and a space surrounded by the underground continuous wall is sequentially provided with the large-scale ultrahigh-speed centrifuge, a large-mass concrete block and a plurality of pile foundations of which the end parts are embedded into the large-mass concrete block from top to bottom; a first vibration isolation seam which is suitable for a large ultra-high speed centrifuge foundation of a soft foundation and a surrounding foundation is arranged at a certain distance of the periphery of the underground continuous wall; the purpose of arranging the large mass of concrete blocks is to reduce the structural vibration response during operation of the large ultra-high speed centrifuge.
When adopting above-mentioned technical scheme, the utility model discloses can also adopt or make up and adopt following technical scheme:
as the utility model discloses a preferred technical scheme: and a second vibration isolation seam for separating the equipment room and the large-scale ultrahigh-speed centrifugal machine is arranged between the equipment room arranged in the space between the underground continuous wall and the large-scale ultrahigh-speed centrifugal machine.
As the utility model discloses a preferred technical scheme: and hard rubber materials are filled in the first vibration isolation seams.
As the utility model discloses a preferred technical scheme: and hard rubber materials are filled in the second vibration isolation seams.
The utility model provides a large-scale hypervelocity centrifuge basis suitable for weak ground for large-scale hypervelocity centrifuge is more than 30% at the host computer vibration of operation period and foundation structure's self-oscillation frequency difference, through arranging big mass concrete block, the tip is embedded into a plurality of pile foundations of big mass concrete block, first vibration isolation seam, second vibration isolation seam can be in safety range with large-scale hypervelocity centrifuge at the maximum amplitude of operation period and foundation structure's self-oscillation frequency, and resonance phenomenon can not appear, and can also control the influence of large-scale hypervelocity centrifuge operation period to building on every side effectively.
Drawings
Fig. 1 is a plan layout diagram of a large ultra-high speed centrifuge foundation suitable for soft foundations provided by the present invention;
3 fig. 3 2 3 is 3 a 3 schematic 3 view 3 of 3 a 3 section 3 a 3- 3 a 3 in 3 fig. 3 1 3. 3
Detailed Description
The invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1-2, the whole large-scale ultra-high speed centrifuge foundation suitable for soft foundation is located below the ground surface, and the large-scale ultra-high speed centrifuge foundation suitable for soft foundation comprises an underground continuous wall 2, the underground continuous wall 2 is arranged along the periphery of the large-scale ultra-high speed centrifuge 1 at a certain distance, the large-scale ultra-high speed centrifuge 1, a large-mass concrete block 3 and a plurality of pile foundations 4 with ends embedded into the large-mass concrete block 3 are sequentially arranged in a space surrounded by the underground continuous wall 2 from top to bottom; a large ultra-high speed centrifuge foundation 1 suitable for a soft foundation and a first vibration isolation seam 5 of a surrounding foundation are arranged at a certain distance of the periphery of the underground continuous wall 2 at intervals, and hard rubber materials are filled in the first vibration isolation seam 5.
An equipment room 6 arranged in a space between the underground continuous wall 2 and the large-scale ultrahigh speed centrifuge 1 are separated from each other by a second vibration isolation gap 7 of the equipment room 6 and the large-scale ultrahigh speed centrifuge 1, hard rubber materials are filled in the second vibration isolation gap 7, and the second vibration isolation gap 7 is formed into an annular structure surrounding the large-scale ultrahigh speed centrifuge 1.
Specifically, the method is implemented by the following scheme:
(1) firstly, carrying out detailed geological survey on a selected site, determining wave velocity and bearing capacity parameters of a bearing layer where a pile foundation is located, wherein the wave velocity of the bearing layer where the pile foundation is located is required to be not lower than 800m/s, the bearing capacity is not lower than 800 kpa, the average uniaxial compressive strength is not lower than 3MPa, and the three conditions are required to be met at the same time, otherwise, other sites are selected, specifically, referring to fig. 1, if a stratum (r) (r) is a soft soil and extremely soft rock stratum, the pile foundation 4 is required to enter the bearing layer (r) to a depth of at least 6 m, the wave velocity of the stratum (r) is not lower than 800m/s, the bearing capacity of the stratum (r) is not lower than 900 kpa, and the average uniaxial compressive strength of the stratum (r) is not lower than 3 MPa.
(2) Calculating the natural vibration frequency and vibration response of a rechecking foundation, wherein the natural vibration frequency is required to be 1.3 times greater than the maximum operating frequency of the large-scale ultrahigh-speed centrifuge, and the vibration horizontal and vertical vibration displacement of the large-mass concrete block is required to be less than 0.05 mm, if the calculation does not meet the requirement, the thickness of the large-mass concrete block is thickened until the natural vibration frequency and the vibration response of the large-scale ultrahigh-speed centrifuge meet the requirement;
(3) the underground continuous wall that peripheral certain distance of large-scale hypervelocity centrifuge arranged is under construction, accomplishes the construction of the pile foundation of bottom and the pouring of pile foundation upper portion big quality concrete block in the space that underground continuous wall centers on, is promptly: arranging an underground continuous wall along the periphery of the large-scale ultra-high speed centrifuge by 10-15 m, wherein the depth of the underground continuous wall extending into a stratum (IV) is not less than 8 m, and the thickness of the underground continuous wall is not less than 0.8 m;
(4) arranging a second vibration isolation gap between the large-scale ultrahigh-speed centrifuge and equipment, and filling a hard rubber material into the second vibration isolation gap, wherein the thickness of the second vibration isolation gap is not less than 1 cm;
(5) first vibration isolation joints are arranged at a certain distance of the periphery of the underground continuous wall, wherein the interval is 15 m, and hard rubber materials are filled in the first vibration isolation joints, and the thickness of the first vibration isolation joints is not less than 10 cm.
The above detailed description is provided for explaining the present invention, and is only a preferred embodiment of the present invention, but not for limiting the present invention, and any modifications, equivalent replacements, improvements, etc. made by the present invention are within the scope of the present invention.
Claims (4)
1. The large-scale ultrahigh-speed centrifuge foundation suitable for the soft foundation is characterized by comprising an underground continuous wall, wherein the underground continuous wall is arranged along the periphery of the large-scale ultrahigh-speed centrifuge at a certain distance, and a space surrounded by the underground continuous wall is sequentially provided with the large-scale ultrahigh-speed centrifuge, a large-mass concrete block and a plurality of pile foundations of which the end parts are embedded into the large-mass concrete block from top to bottom; a first vibration isolation seam is arranged at a certain distance on the periphery of the underground continuous wall, wherein the first vibration isolation seam is suitable for a large ultra-high-speed centrifuge foundation of a soft foundation and a surrounding foundation at intervals.
2. A large ultra-high speed centrifuge foundation suitable for a soft foundation according to claim 1, wherein a second vibration isolation gap for separating an equipment room and a large ultra-high speed centrifuge is arranged between the equipment room arranged in the space between the underground continuous wall and the large ultra-high speed centrifuge.
3. A large ultra high speed centrifuge foundation suitable for soft foundation according to claim 2, wherein the second vibration isolation gap is filled with hard rubber material.
4. A large ultra high speed centrifuge foundation suitable for soft foundation according to claim 1, wherein the first vibration isolation gap is filled with hard rubber material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921666871.1U CN211472562U (en) | 2019-10-08 | 2019-10-08 | Large-scale hypervelocity centrifuge basis suitable for soft foundation |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921666871.1U CN211472562U (en) | 2019-10-08 | 2019-10-08 | Large-scale hypervelocity centrifuge basis suitable for soft foundation |
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| CN211472562U true CN211472562U (en) | 2020-09-11 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110805057A (en) * | 2019-10-08 | 2020-02-18 | 中国电建集团华东勘测设计研究院有限公司 | Large-scale ultra-high-speed centrifuge foundation suitable for soft foundation and implementation method |
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2019
- 2019-10-08 CN CN201921666871.1U patent/CN211472562U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110805057A (en) * | 2019-10-08 | 2020-02-18 | 中国电建集团华东勘测设计研究院有限公司 | Large-scale ultra-high-speed centrifuge foundation suitable for soft foundation and implementation method |
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