CN101748732A - Method for sinking bucket foundation with force bearing ring structure - Google Patents
Method for sinking bucket foundation with force bearing ring structure Download PDFInfo
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- CN101748732A CN101748732A CN200910244851A CN200910244851A CN101748732A CN 101748732 A CN101748732 A CN 101748732A CN 200910244851 A CN200910244851 A CN 200910244851A CN 200910244851 A CN200910244851 A CN 200910244851A CN 101748732 A CN101748732 A CN 101748732A
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- bucket foundation
- ring structure
- bearing ring
- force bearing
- negative pressure
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Abstract
The invention discloses a method for sinking a bucket foundation with a force bearing ring structure. The top of the bucket foundation is provided with a sealing top cover; the centre of the sealing top cover is provided with a reserved negative pressure hole and is connected with a negative pressure system; a reserved air infusion pipe is arranged outside the wall of the bucket foundation; the lower end outlet of the reserved air infusion pipe is positioned at the subfoundation on the lower part of the force bearing ring structure; and the upper end of the reserved air infusion pipe is connected with air infusion equipment on the surface of water. The method comprises the following implementation steps: 1) after the bucket foundation sinks in position by the self weight, starting the reserved air infusion pipe to continuously provide high-pressure air for the subfoundation on the lower part of the force bearing ring structure to ensure that a soil body is blown away and the bucket foundation sinks continuously; and 2) when the sink resistance of the bucket foundation exceeds a sink force provided by air injecting and ground breaking, pumping the negative pressure in the bucket foundation through the reserved negative pressure hole so as to ensure that the bucket foundation sinks continuously. The method has the characteristics of simple structure, simple and convenient construction, high efficiency and non-interference by sea conditions, and simultaneously, has the advantages of fast installation speed, low cost, strong safety and capability of realizing automatic monitoring operation in the sink process.
Description
Affiliated technical field
The present invention relates to a kind of sinking method, belong to the sinking construction technology of the bucket foundation pattern in harbour, ocean, water conservancy and the bridge engineering with the force bearing ring structure bucket foundation.
Background technology
At present at the harbour, ocean, water conservancy and bridge engineering, band force bearing ring structure bucket foundation is in sinking construction, because the cross section of its force bearing ring structure is bigger, bring very big difficulty for the sinking of bucket foundation, it is time-consuming and cost is high to carry out sinking construction according to a conventional method.
Summary of the invention
The objective of the invention is at above-mentioned existing problems, a kind of sinking method with the force bearing ring structure bucket foundation be provided, adopt the construction equipment of this method simple, easy to operate, can improve installation rate, the expense that reduces cost is increased economic efficiency.
Technical scheme of the present invention:
A kind of sinking method with the force bearing ring structure bucket foundation, cylinder type basal top is provided with top pressure closure, the center of top pressure closure is provided with the reservation negative pressure hole and is connected with negative pressure system, be provided with the reservation air injection pipe in the bucket foundation wall outside, the lower end outlet of reserving air injection pipe is positioned at the subfoundation of force bearing ring structure bottom, the upper end of reservation air injection pipe is connected with the gas injection equipment on the water surface, implementation step is as follows: 1) after band force bearing ring structure bucket foundation is in place by the deadweight sinking, enable the reservation air injection pipe in the bucket foundation wall outside, constantly provide high pressure gas by the subfoundation of air injection pipe to the force bearing ring structure bottom, near soil body subfoundation and the force bearing ring structure is dispelled, make bucket foundation continue to sink; 2) when the barrel-shaped foundation sinking resistance breaks ground the down force that provides above gas injection, enable negative pressure system and in bucket foundation, take out negative pressure, make it continue to sink, until sinking to the predefined degree of depth by the reservation negative pressure hole on the top pressure closure.
The pressure of described feeding gases at high pressure is not more than 10 atmospheric pressure.
The negative pressure value that vacuumizes in the described basis is for being not less than-0.6Mpa.
The invention has the beneficial effects as follows: the immerge system of breaking ground by gas injection, make band force bearing ring structure bucket foundation sink to all kinds with the expense of economy, especially in the foundation soil body of sand matter to the predetermined degree of depth, the sinking process is simpler, installation rate improves greatly, the interference of ambient conditions can be avoided to a great extent, the full-automatic monitoring task of process, construction quality and the safety that assurance is sunk can be realized.
Description of drawings
Fig. 1 is that band force bearing ring structure barrel-shaped foundation sinking is implemented schematic diagram.
Fig. 2 is the gas injection of the band force bearing ring structure bucket foundation device upward view that breaks ground.
Among the figure: 1, bucket foundation 2, top pressure closure 3, reservation negative pressure hole 4, reservation air injection pipe 5, force bearing ring structure 6, subfoundation
The specific embodiment
Embodiment:
A kind of sinking method with the force bearing ring structure bucket foundation, bucket foundation 1 top is provided with top pressure closure 2, the center of top pressure closure 2 is provided with reservation negative pressure hole 3 and is connected with negative pressure system, be provided with reservation air injection pipe 4 in the bucket foundation 1 wall outside, the lower end outlet of reserving air injection pipe 4 is positioned at the subfoundation 6 of force bearing ring structure 5 bottoms, the upper end of reservation air injection pipe 4 is connected with the gas injection equipment on the water surface, implementation step is as follows: 1) bucket foundation 1 by deadweight sink in place after, enable the reservation air injection pipe 4 in the bucket foundation 1 wall outside, constantly provide high pressure gas by reserving the subfoundation 6 of air injection pipe 4 to force bearing ring structure 5 bottoms, the pressure of high pressure gas is not more than 10 atmospheric pressure, near soil body subfoundation 6 and the force bearing ring structure 5 is dispelled, make bucket foundation 1 continue to sink; 2) when bucket foundation 1 penetration resistance breaks ground the down force that provides above gas injection, enable negative pressure system and in bucket foundation 1, take out negative pressure by the reservation negative pressure hole 3 on the top pressure closure 2, negative pressure value makes it continue to sink, until sinking to the predefined degree of depth for being not less than-0.6Mpa.
Among this embodiment, the diameter of bucket foundation is 12m, and height is 15m; The cross section of force bearing ring structure is a triangle, high 300mm, wide 300mm.This embodiment practice result shows: this method has simple in structure, easy construction, efficient height, is not subjected to the sea conditions characteristics of interference, and installation rate is fast simultaneously, cost is low, high safety, and can realize the full-automatic monitoring task of process.
Claims (3)
1. sinking method with the force bearing ring structure bucket foundation, it is characterized in that: cylinder type basal top is provided with top pressure closure, the center of top pressure closure is provided with the reservation negative pressure hole and is connected with negative pressure system, be provided with the reservation air injection pipe in the bucket foundation wall outside, the lower end outlet of reserving air injection pipe is positioned at the subfoundation of force bearing ring structure bottom, the upper end of reservation air injection pipe is connected with the gas injection equipment on the water surface, implementation step is as follows: 1) after band force bearing ring structure bucket foundation is in place by the deadweight sinking, enable the reservation air injection pipe in the bucket foundation wall outside, constantly provide high pressure gas by the subfoundation of air injection pipe to the force bearing ring structure bottom, near soil body subfoundation and the force bearing ring structure is dispelled, make bucket foundation continue to sink; 2) when the barrel-shaped foundation sinking resistance breaks ground the down force that provides above gas injection, enable negative pressure system and in bucket foundation, take out negative pressure, make it continue to sink, until sinking to the predefined degree of depth by the reservation negative pressure hole on the top pressure closure.
2. according to the sinking method of the described band force bearing ring structure of claim 1 bucket foundation, it is characterized in that: the pressure of described feeding gases at high pressure is not more than 10 atmospheric pressure.
3. according to the sinking method of the described band force bearing ring structure of claim 1 bucket foundation, it is characterized in that: the negative pressure value that vacuumizes in the described basis is for being not less than-0.6Mpa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910244851XA CN101748732B (en) | 2009-12-17 | 2009-12-17 | Method for sinking bucket foundation with force bearing ring structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910244851XA CN101748732B (en) | 2009-12-17 | 2009-12-17 | Method for sinking bucket foundation with force bearing ring structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101748732A true CN101748732A (en) | 2010-06-23 |
| CN101748732B CN101748732B (en) | 2012-03-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200910244851XA Active CN101748732B (en) | 2009-12-17 | 2009-12-17 | Method for sinking bucket foundation with force bearing ring structure |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102493703A (en) * | 2011-11-14 | 2012-06-13 | 天津大学 | Anemometer tower structure capable of self-floating and towing and construction method thereof |
| CN104456073A (en) * | 2014-12-01 | 2015-03-25 | 中国海洋石油总公司 | Ice-resistant ice piton structure for maritime LNG (Liquefied Natural Gas) receiving terminal |
| CN108086347A (en) * | 2017-12-12 | 2018-05-29 | 河海大学 | Strengthen screwed pipe and strengthen helix tube type suction barrel base and its application method |
| CN113028298A (en) * | 2021-03-02 | 2021-06-25 | 徐州睿晓智能科技有限公司 | Embedding device for single detector for mud entering into seabed |
| CN116151061A (en) * | 2022-12-08 | 2023-05-23 | 天津大学 | Method and device for determining maximum depth of cylindrical foundation bearing layer and storage medium |
| CN117569742A (en) * | 2024-01-16 | 2024-02-20 | 浙江省第一水电建设集团股份有限公司 | Pre-punching air knife device and steel pipe pile driving method |
-
2009
- 2009-12-17 CN CN200910244851XA patent/CN101748732B/en active Active
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102493703A (en) * | 2011-11-14 | 2012-06-13 | 天津大学 | Anemometer tower structure capable of self-floating and towing and construction method thereof |
| CN102493703B (en) * | 2011-11-14 | 2014-04-02 | 天津大学 | Anemometer tower structure capable of self-floating and towing and construction method thereof |
| CN104456073A (en) * | 2014-12-01 | 2015-03-25 | 中国海洋石油总公司 | Ice-resistant ice piton structure for maritime LNG (Liquefied Natural Gas) receiving terminal |
| CN104456073B (en) * | 2014-12-01 | 2017-01-18 | 中国海洋石油总公司 | Ice-resistant ice piton structure for maritime LNG (Liquefied Natural Gas) receiving terminal |
| CN108086347A (en) * | 2017-12-12 | 2018-05-29 | 河海大学 | Strengthen screwed pipe and strengthen helix tube type suction barrel base and its application method |
| CN108086347B (en) * | 2017-12-12 | 2019-07-23 | 河海大学 | Reinforce screwed pipe and reinforces helix tube type suction barrel base and its application method |
| CN113028298A (en) * | 2021-03-02 | 2021-06-25 | 徐州睿晓智能科技有限公司 | Embedding device for single detector for mud entering into seabed |
| CN113028298B (en) * | 2021-03-02 | 2022-08-30 | 徐州睿晓智能科技有限公司 | Embedding device for single detector for mud entering into seabed |
| CN116151061A (en) * | 2022-12-08 | 2023-05-23 | 天津大学 | Method and device for determining maximum depth of cylindrical foundation bearing layer and storage medium |
| CN116151061B (en) * | 2022-12-08 | 2024-03-12 | 天津大学 | Method and device for determining maximum depth of cylindrical foundation bearing layer and storage medium |
| CN117569742A (en) * | 2024-01-16 | 2024-02-20 | 浙江省第一水电建设集团股份有限公司 | Pre-punching air knife device and steel pipe pile driving method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101748732B (en) | 2012-03-21 |
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Address after: 226259 Qidong City, Jiangsu Province Yin Yang Ship Industrial Park Patentee after: Jiangsu Daoda Marine Heavy Industry Co.,Ltd. Address before: 226259 Qidong City, Jiangsu Province Yin Yang Ship Industrial Park Patentee before: Qidong Daoda Heavy Industry Co.,Ltd. |
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Address after: 226259 Qidong City, Jiangsu Province Yin Yang Ship Industrial Park Patentee after: SHANGHAI ZHENHUA HEAVY INDUSTRY QIDONG MARINE ENGINEERING CO., LTD. Address before: 226259 Qidong City, Jiangsu Province Yin Yang Ship Industrial Park Patentee before: Jiangsu Daoda Marine Heavy Industry Co.,Ltd. |