CN105240684A - Central gas supply system and method for large open caisson mud suction sinking construction - Google Patents
Central gas supply system and method for large open caisson mud suction sinking construction Download PDFInfo
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- CN105240684A CN105240684A CN201510539850.3A CN201510539850A CN105240684A CN 105240684 A CN105240684 A CN 105240684A CN 201510539850 A CN201510539850 A CN 201510539850A CN 105240684 A CN105240684 A CN 105240684A
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Abstract
The invention relates to the field of open caisson construction, in particular to a central gas supply system and method for large open caisson mud suction sinking construction. The central gas supply system comprises two sets of gas storage tanks; each set comprises multiple gas storage tanks; each gas storage tank is connected with two air compressors; each set of gas storage tanks is connected with a blast main; a gas storage tank valve is arranged between each gas storage tank and the corresponding blast main; the two blast mains are arranged along the top of the lateral wall of an open caisson, and the ends on the top of the lateral wall are communicated to form a closed loop; each blast main is connected with multiple branch air pipes; each branch air pipe is connected with a mud suction machine. When a certain gas storage tank breaks down or the corresponding air compressor breaks down, the corresponding gas storage tank valve is closed, then maintenance is conducted, and the central gas supply system works normally. The stability of the whole gas supply system is ensured, and the whole open caisson mud suction efficiency is prevented from being affected.
Description
Technical field
The present invention relates to open caisson construction field, is specifically central gas supply system and the method for the construction of a kind of large-scale well-sinking suck sediment subsidence.
Background technique
In the foundation construction of bridge large-scale well-sinking, suck sediment subsidence construction while that most employing multiple stage airlift suction dredger carrying out.And in multiple stage suction dredger, usually adopt several suction dredgers to share an air supply system, the air supply system that multiple stage suction dredger uses multiple stage separate altogether, for construction provides gas.In each air supply system, air compressor negligible amounts, any air compressor gas output is unstable, whole air supply system air pressure all can be caused unstable, cause corresponding suction dredger to inhale mud discontinuous, affect whole open caisson suck sediment subsidence speed of application.Large-scale well-sinking inhales mud engineering work load greatly, and the suction mud air feed equipment of needs is many, and air supply system air feed is unstable on the impact of suction mud efficiency greatly.
Summary of the invention
For the defect existed in prior art, the central gas supply system that the object of the present invention is to provide a kind of large-scale well-sinking suck sediment subsidence to construct and method, ensure the stable of whole air supply system, avoids affecting the efficiency that mud inhaled by whole open caisson.
For reaching above object, the central gas supply system that the present invention takes a kind of large-scale well-sinking suck sediment subsidence to construct, comprise two groups of gas holder, often organizing gas holder comprises multiple, and each gas holder connects two air compressors, often organizes gas holder and all connects a main air-duct, and between each gas holder and main air-duct, be provided with a gas holder valve, two main air-ducts are along the top layout of open caisson sidewall, and the termination being positioned at top side wall is communicated with, and forms closed-loop path; Every root main air-duct connects many points of airducts, and every root divides airduct to connect a suction dredger.
On the basis of technique scheme, one end that described every root divides airduct to connect with corresponding main air-duct, is provided with a point of airduct valve.
On the basis of technique scheme, described every root divides between airduct and corresponding main air-duct and adopts oblique angle to connect.
On the basis of technique scheme, described every root divides the angle between the end of airduct and corresponding main air-duct to be 45 °.
On the basis of technique scheme, every platform air compressor connects corresponding gas holder by flexible pipe, and each gas holder connects corresponding main air-duct by flexible pipe.
On the basis of technique scheme, every root divides airduct to be soldered to described main air-duct, and is communicated with main air-duct.
On the basis of technique scheme, also comprise the air feeding platform be arranged at outside open caisson, described gas holder and air compressor are all arranged on this air feeding platform.
A kind of central gas supply method that the present invention also provides large-scale well-sinking suck sediment subsidence to construct, comprise: first gas holder valve open, the gas holder that the gas that all air compressors produce enters connection carries out voltage stabilizing, then the gas in gas holder is transported to the top of open caisson sidewall along main air-duct, gas divides airduct to shunt through too much root, enters corresponding suction dredger and carries out air feed; When certain gas holder breaks down or the air compressor of correspondence breaks down, keep in repair after closing corresponding gas holder valve, described central gas supply system normally works.
On the basis of technique scheme, every root divides between airduct and corresponding main air-duct and adopts oblique angle to connect, one end that every root divides airduct and corresponding main air-duct to connect is provided with a point of airduct valve, when certain wellhole of open caisson does not need to inhale mud operation, that closes that the corresponding suction dredger institute of this wellhole connects point airduct divides airduct valve, stops the air feed of corresponding suction dredger.
On the basis of technique scheme, every platform air compressor connects corresponding gas holder by flexible pipe, and each gas holder connects corresponding main air-duct by flexible pipe; Every root divides airduct to be soldered to described main air-duct, and is communicated with main air-duct.
Beneficial effect of the present invention is:
1, by arranging gas holder, main air-duct in open caisson sidewall end face formation closed-loop path between air compressor and main air-duct, when ensureing that certain air compressor produces unstable gas, the gas stored in main air-duct and other gas holder can compensate, the gas atmosphere entered in air compressor is stablized, and then ensure the stable of whole air supply system, ensure the sustainable suction mud of suction dredger, avoid affecting the efficiency that mud inhaled by whole open caisson.
2, when certain gas holder breaks down or the air compressor of correspondence breaks down, after closing corresponding gas holder valve, the equipment broken down is keeped in repair, does not affect central gas supply system and normally work.
3, the one end dividing airduct to be connected with main air-duct arranges a point airduct valve, can control corresponding suction dredger work respectively, controls the quantity that suction dredger works simultaneously, reaches the object controlling the corresponding suction dredger of each wellhole.
Accompanying drawing explanation
Structural representation when Fig. 1 is the central gas supply system construction of large-scale well-sinking suck sediment subsidence construction;
Another angled arrangement schematic diagram when Fig. 2 is the central gas supply system construction of large-scale well-sinking suck sediment subsidence construction;
Fig. 3 is the partial enlarged drawing of part A in Fig. 1;
The partial enlarged drawing of part B in Fig. 4 bitmap 1.
Reference character: air compressor 1, gas holder 2, gas holder valve 3, main air-duct 4, point airduct 5, point airduct valve 6, air feeding platform 7, open caisson 8.
Embodiment
Below in conjunction with drawings and Examples, the present invention is described in further detail.
As shown in Figures 1 to 4, the central gas supply system of large-scale well-sinking suck sediment subsidence construction of the present invention, comprise an air feeding platform 7 be arranged on outside open caisson 8, air feeding platform 7 is arranged near open caisson 8, which is provided with two groups of gas holder 2 and multiple air compressors 1.Two groups of gas holder 2 are as stable gas pressure device, and in two row arrangements, each gas holder 2 connects two air compressors 1, and air compressor 1 is as power system, and the air compressor 1 of each group gas holder 2 correspondence is arranged in the outside of this group gas holder 2 in row.Often organize gas holder 2 and connect a main air-duct 4, and between each gas holder 2 and main air-duct 4, be provided with a gas holder valve 3 (as Fig. 3).Two main air-ducts 4 are along the top layout of open caisson 8 sidewall, and the termination being positioned at top side wall is communicated with, and form closed-loop path in the top side wall of open caisson 8, the effect of stable air pressure is played in closed-loop path.One end that every root main air-duct 4 is positioned at air feeding platform 7 is closed.In the present embodiment, every platform air compressor 1 connects corresponding gas holder 2 by flexible pipe, and each gas holder 2 connects corresponding main air-duct 4 by flexible pipe.The part that main air-duct 4 is positioned at top side wall offers multiple through hole, and a point of airduct 5 is welded in each through hole, one end that every root divides airduct 5 to connect with corresponding main air-duct 4, is provided with a point of airduct valve 6 (as Fig. 4).Every root divides airduct 5 to connect a suction dredger, and every platform suction dredger correspondence inhales mud wellhole.Every root divides between airduct 5 and corresponding main air-duct 4 and adopts oblique angle to connect, reduce local energy loss when gas enters point airduct 5, avoid producing gas backstreaming phenomenon at point airduct 5 suction port place, preferably, every root divides the angle between the end of airduct 5 and corresponding main air-duct 4 to be 45 °.
The central gas supply method of large-scale well-sinking suck sediment subsidence construction of the present invention, comprising: first, and gas holder valve 3 and a point airduct valve 6 are open mode.The gas holder 2 that the gas that air compressor 1 produces enters connection carries out voltage stabilizing, and the gas then in gas holder 2 is transported to the top of open caisson sidewall along main air-duct 4, gas divides airduct 5 to shunt through too much root, enters corresponding suction dredger and carries out air feed.When certain gas holder 2 breaks down or the air compressor 1 of correspondence breaks down, close corresponding gas holder valve 3, the equipment broken down is placed under repair, does not affect central gas supply system and normally work.When certain wellhole of open caisson 8 does not need to inhale mud operation, that closes that the corresponding suction dredger institute of this wellhole connects point airduct 5 divides airduct valve 6, stops the air feed of corresponding suction dredger, stops the work of this suction dredger, the quantity that control suction dredger works simultaneously.
The present invention is not limited to above-mentioned mode of execution, and for those skilled in the art, under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications are also considered as within protection scope of the present invention.The content be not described in detail in this specification belongs to the known prior art of professional and technical personnel in the field.
Claims (10)
1. the central gas supply system of a large-scale well-sinking suck sediment subsidence construction, it is characterized in that: comprise two groups of gas holder, often organizing gas holder comprises multiple, each gas holder connects two air compressors, often organize gas holder and all connect a main air-duct, and be provided with a gas holder valve between each gas holder and main air-duct, two main air-ducts are along the top layout of open caisson sidewall, and the termination being positioned at top side wall is communicated with, and forms closed-loop path; Every root main air-duct connects many points of airducts, and every root divides airduct to connect a suction dredger.
2. the central gas supply system of large-scale well-sinking suck sediment subsidence construction as claimed in claim 1, is characterized in that: one end that described every root divides airduct to connect with corresponding main air-duct, is provided with a point of airduct valve.
3. the central gas supply system of large-scale well-sinking suck sediment subsidence construction as claimed in claim 1 or 2, is characterized in that: described every root divides between airduct and corresponding main air-duct and adopts oblique angle to connect.
4. the central gas supply system of large-scale well-sinking suck sediment subsidence construction as claimed in claim 3, is characterized in that: described every root divides the angle between the end of airduct and corresponding main air-duct to be 45 °.
5. the central gas supply system of large-scale well-sinking suck sediment subsidence construction as claimed in claim 1, is characterized in that: every platform air compressor connects corresponding gas holder by flexible pipe, and each gas holder connects corresponding main air-duct by flexible pipe.
6. the central gas supply system of large-scale well-sinking suck sediment subsidence construction as claimed in claim 1, is characterized in that: every root divides airduct to be soldered to described main air-duct, and is communicated with main air-duct.
7. the central gas supply system of large-scale well-sinking suck sediment subsidence construction as claimed in claim 1, it is characterized in that: also comprise the air feeding platform be arranged at outside open caisson, described gas holder and air compressor are all arranged on this air feeding platform.
8. the large-scale well-sinking suck sediment subsidence based on system described in the claim 1 central gas supply method of constructing, it is characterized in that, comprise: first gas holder valve open, the gas holder that the gas that all air compressors produce enters connection carries out voltage stabilizing, then the gas in gas holder is transported to the top of open caisson sidewall along main air-duct, gas divides airduct to shunt through too much root, enters corresponding suction dredger and carries out air feed; When certain gas holder breaks down or the air compressor of correspondence breaks down, keep in repair after closing corresponding gas holder valve, described central gas supply system normally works.
9. the central gas supply method of large-scale well-sinking suck sediment subsidence construction as claimed in claim 8, it is characterized in that: every root divides between airduct and corresponding main air-duct and adopts oblique angle to connect, one end that every root divides airduct and corresponding main air-duct to connect is provided with a point of airduct valve, when certain wellhole of open caisson does not need to inhale mud operation, that closes that the corresponding suction dredger institute of this wellhole connects point airduct divides airduct valve, stops the air feed of corresponding suction dredger.
10. the central gas supply method of large-scale well-sinking suck sediment subsidence construction as claimed in claim 8, is characterized in that: every platform air compressor connects corresponding gas holder by flexible pipe, and each gas holder connects corresponding main air-duct by flexible pipe; Every root divides airduct to be soldered to described main air-duct, and is communicated with main air-duct.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510539850.3A CN105240684B (en) | 2015-08-28 | 2015-08-28 | The central gas supply system and method for large-scale well-sinking suck sediment subsidence construction |
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| CN201510539850.3A CN105240684B (en) | 2015-08-28 | 2015-08-28 | The central gas supply system and method for large-scale well-sinking suck sediment subsidence construction |
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| CN105240684A true CN105240684A (en) | 2016-01-13 |
| CN105240684B CN105240684B (en) | 2018-11-23 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112459098A (en) * | 2020-11-13 | 2021-03-09 | 中交二航局第四工程有限公司 | Centralized water and gas supply system and method for large open caisson mud suction sinking construction |
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| CN104687218A (en) * | 2013-12-04 | 2015-06-10 | 天津润东蔬菜种植专业合作社 | Novel fruit/vegetable drying machine |
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2015
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| JP2000323464A (en) * | 1999-04-22 | 2000-11-24 | Tokyo Electron Ltd | Apparatus and method for supplying gas for semiconductor manufacturing apparatus |
| US20140332100A1 (en) * | 2006-02-06 | 2014-11-13 | Tokyo Electron Limited | Gas supply method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112459098A (en) * | 2020-11-13 | 2021-03-09 | 中交二航局第四工程有限公司 | Centralized water and gas supply system and method for large open caisson mud suction sinking construction |
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| CN105240684B (en) | 2018-11-23 |
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