CN100585095C - Carry out the positioning sinking process of steel open caisson under water - Google Patents
Carry out the positioning sinking process of steel open caisson under water Download PDFInfo
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- CN100585095C CN100585095C CN200810028040A CN200810028040A CN100585095C CN 100585095 C CN100585095 C CN 100585095C CN 200810028040 A CN200810028040 A CN 200810028040A CN 200810028040 A CN200810028040 A CN 200810028040A CN 100585095 C CN100585095 C CN 100585095C
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Abstract
A kind of positioning sinking process that carries out the steel open caisson under water, according under water the deposit of getting in the seabed or water-bed geographical position arrange positioning framework and telltale mark steel, utilize the high-precision attitude instrument and or the ultra-short baseline positioning equipment measure the coordinate of positioning framework, settle the top of ultra-short baseline positioning equipment sampling beacon simultaneously at the steel open caisson, hang steel open caisson cover with crane ship and put in sedimental periphery, the outer wall at the steel open caisson helps the steel open caisson to continue to sink to the purpose degree of depth with the way of excavating mud at last.Adopt the said positioning sinking process that carries out the steel open caisson under water of the present invention, owing to do not adopt the auxiliary sinking of the mode of in the steel open caisson, excavating, do not adopt the method for assisting the steel well sinking at the water surface with vibrating hammer yet, can guarantee the accurate, steady of steel well sinking, can in the sinking process of steel open caisson, the sedimental safety in the steel open caisson not be subjected to new infringement again, reduction of erection time while, the construction danger that marine environment brings when greatly having reduced operation at sea.
Description
Technical field
A kind of positioning sinking process that carries out the steel open caisson under water relates to the improvement of hydraulic engineering and ocean engineering job practices.
Background technology
In hydraulic engineering and ocean engineering, generally the localization method for the steel open caisson adopts installing engineering guide pile in advance mostly, must surface in the upper edge of open caisson, by the diver after feeling of the bottom checked the location, adopt vibrating hammer to assist the steel open caisson to position and the installation of sinking at the water surface, and in the sinking process of steel open caisson, the method for excavation in continuing in the steel open caisson, to adopt, the sinking of help open caisson.This is the current basic skills that open caisson construction is installed under the more shallow river of the general depth of water, river.The open caisson of An Zhuaning is interim cofferdam substantially like this, does not generally need open caisson is hung out the water surface again after construction is finished, but places in the water as permanent underwater structures, does not need to consider sedimental safety in the steel open caisson in construction for this reason.But when carrying out this class engineering in the marine site that water level is dark, stormy waves is bigger, just can't surface when the sinking certain depth in the upper edge of steel open caisson, and vibrating hammer sinking method is just restricted; But also to guarantee that the safety of deposit in work progress can not cause new infringement in the steel open caisson, in the sinking process of steel open caisson, the method for excavation also just can't have been used in continuing to adopt in the steel open caisson so.
Summary of the invention
The object of the present invention is to provide a kind of positioning sinking process that carries out the steel open caisson under water, not only can be accurately according to the needs of engineering steadily the steel well sinking, also to after obtaining underwater sediment(s), hang out the water surface to the steel open caisson, and in the sinking process, can guarantee sedimental safety in the steel open caisson at the steel open caisson, make it not be subjected to the method for new infringement.
The said positioning sinking process that carries out the steel open caisson under water of the present invention is:
A, at first according under water the deposit of getting 4 in the seabed or water-bed geographical position arrange positioning framework and L type telltale mark steel 2, the position of L type telltale mark steel 2 and steel open caisson 1 interlayer 5 borehole wall outer wall length and widths be 〉=0.5 meter apart from w1;
B, secondly utilize coordinate that high-precision attitude instrument GAPS and/or ultra-short baseline positioning equipment measure four angles of positioning framework, simultaneously the sampling of the ultra-short baseline positioning equipment more than two or two beacon 3 is placed in the top of steel open caisson 1 as position reference;
C, adopt the large-tonnage crane ship to hang the steel open caisson 1 that has interlayer, by high-precision attitude instrument GAPS and ultra-short baseline positioning equipment monitoring sinking attitude and location, when steel open caisson 1 during near the mud face, check relative position between steel open caisson 1 and the L type telltale mark steel 2 under water by the diver, steel open caisson 1 accurately is installed in the position of L type telltale mark steel 2 and cover is put periphery at deposit 4, adopt the way that applies static pressure to help steel open caisson 1 is sunk in the mud then on steel open caisson 1, the outer wall at steel open caisson 1 helps steel open caisson 1 to continue to sink to the purpose degree of depth with the way of excavating mud at last.
Adopt the said positioning sinking process that carries out the steel open caisson under water of the present invention, owing to do not adopt the auxiliary sinking of the mode of in the steel open caisson, excavating, do not adopt the method for assisting the steel well sinking at the water surface with vibrating hammer yet, therefore both can guarantee the accurate, steady of steel well sinking, can guarantee in the sinking process of steel open caisson that again the sedimental safety in the steel open caisson is not subjected to new infringement, reduction of erection time while, the construction danger that marine environment brings when greatly having reduced operation at sea.
Description of drawings
After Fig. 1 is the said positioning sinking process that carries out the steel open caisson under water of this use invention, the relative position floor map of steel open caisson 1 between water-bed and L type telltale mark steel 2 and deposit 4.
The specific embodiment
Below in conjunction with accompanying drawing in detail specific implementation method of the present invention is described in detail.
The said positioning sinking process that carries out the steel open caisson under water of the present invention, in the time of can being used for the ancient shipwreck of salvage to the positioning sinking of steel open caisson.
Before concrete enforcement, need to measure the size of benthal deposit 4 as ancient shipwreck, make dual borehole wall steel open caisson 1 according to the volume of ancient shipwreck, the length and width of its steel open caisson 1 inwall and the distance W 2 of ancient shipwreck respectively increase more than 1 meter or 1 meter, its objective is need be covering benthal deposit 4 ancient shipwrecks safely after 1 sinking of steel open caisson, to guarantee simultaneously in the sinking process of steel open caisson 1, can not continue to damage ancient shipwreck.
Before steel open caisson 1 sinks, at first need to use high-precision attitude instrument GAPS or ultra-short baseline positioning equipment that the geographical position under water of ancient shipwreck is measured.As shown in Figure 1, arrange L type telltale mark steel 2 by the diver according to the particular location of the ancient shipwreck in seabed, the position of L type telltale mark steel 2 should be arranged in 0.5 meter apart from w1 that is equal to or greater than the length and width that covers steel open caisson 1 interlayer 5 borehole wall outer walls behind the deposit 4 ancient shipwrecks.
The sampling beacon 3 of the high accuracy ultra-short baseline positioning equipment more than two or two is placed in the top of steel open caisson 1.For carrying out steel open caisson sinking in the relatively poor marine site of marine environment, can adopt diagonal that 1 sampling beacon 3 respectively is set on steel open caisson 1 top, even can adopt at four end angles on steel open caisson 1 top and respectively place a sampling beacon 3, to increase the accuracy of sampling bootstrap information.
Adopt the large-tonnage crane ship to hang steel open caisson 1 at last, sinking attitude and location situation by high-precision attitude instrument GAPS and ultra-short baseline monitoring steel open caisson 1, when steel open caisson 1 sinks down near the deposit 4 on the underwater sludge face, earlier check relative position between steel open caisson 1 and the L type telltale mark steel 2 under water by the diver, and guiding the periphery that accurately is installed in L type telltale mark steel 2 positions and covers ancient shipwreck to steel open caisson 1, the way that applies static pressure then on steel open caisson 1 helps steel open caisson 1 is sunk in the mud.
When reality is implemented, be to adopt in the interlayer 5 of steel open caisson 1, to irritate husky in the way that applies static pressure on the steel open caisson 1, the way of placing weight simultaneously on steel open caisson 1 is to accelerate the sinking of steel open caisson 1.Adopted the positioning sinking process of the said steel open caisson of the present invention, neither adopted vibrating hammer to assist the steel well sinking, also do not adopted the mode of excavating in the steel open caisson to assist the steel well sinking, just in the end the steel open caisson has been
When sinking to the deposit top, use the static pressure sinking method, on steel open caisson 1, apply the way of static pressure, help the steel open caisson to continue to sink to covering deposit, and reduce to the required degree of depth.Therefore can guarantee the process of accurately, steadily sinking of steel open caisson, and the deposit that the safeguard protection cover is put in the steel open caisson is not subjected to new infringement.
Claims (3)
1, a kind of positioning sinking process that carries out the steel open caisson under water is characterized in that:
A, at first according under water the deposit of getting (4) in the seabed or water-bed location arrangements L type telltale mark steel (2), the length and width of the position of L type telltale mark steel (2) and steel open caisson (1) outer wall be 〉=0.5 meter apart from w1;
Secondly b, the sampling beacon (3) of two or more high-precision attitude instrument GAPS and/or ultra-short baseline positioning equipment is placed in the upper end of steel open caisson (1);
C, employing large-tonnage crane ship hang steel open caisson (1), by high-precision attitude instrument GAPS or ultra-short baseline monitoring location, when steel open caisson (1) during near underwater sludge mud face, check relative position between steel open caisson (1) and the L type telltale mark steel (2) under water by the diver, and steel open caisson (1) accurately is installed on the mud in L type telltale mark steel (2) position, cover is put in the periphery of deposit (4), goes up at steel open caisson (1) then and adopts the static pressure way to help steel open caisson (1) to continue to sink to the purpose degree of depth.
2, according to the positioning sinking process of the said steel open caisson of claim 1, it is characterized in that said steel open caisson (1) is interlayer (5) borehole wall, the length and width of its steel open caisson (1) inwall with 2 〉=1 meters of the distance W of the deposit of getting (4).
3, according to the positioning sinking process of the said steel open caisson of claim 1, it is characterized in that said way at the last employing of steel open caisson (1) static pressure is to irritate husky in the interlayer (5) of steel open caisson (1), go up the way of placing weight at steel open caisson (1) simultaneously, to accelerate the sinking of steel open caisson (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810028040A CN100585095C (en) | 2008-05-13 | 2008-05-13 | Carry out the positioning sinking process of steel open caisson under water |
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| Application Number | Priority Date | Filing Date | Title |
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| CN200810028040A CN100585095C (en) | 2008-05-13 | 2008-05-13 | Carry out the positioning sinking process of steel open caisson under water |
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| Publication Number | Publication Date |
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| CN101289864A CN101289864A (en) | 2008-10-22 |
| CN100585095C true CN100585095C (en) | 2010-01-27 |
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| CN200810028040A Expired - Fee Related CN100585095C (en) | 2008-05-13 | 2008-05-13 | Carry out the positioning sinking process of steel open caisson under water |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101787712B (en) * | 2009-12-25 | 2011-06-01 | 中国水电顾问集团中南勘测设计研究院 | Inclination measuring device and measuring method of sunk well |
| CN101787703B (en) * | 2010-03-17 | 2011-06-15 | 中国二十二冶集团有限公司 | Sinking construction method of sinking well with geology of gravel and pebble beds under saturated water condition |
| CN102704500A (en) * | 2012-06-04 | 2012-10-03 | 中交第一航务工程局有限公司 | Vibration sinking construction method of auxiliary lattice arc-shaped steel plate |
| CN103114598A (en) * | 2013-01-31 | 2013-05-22 | 中交一航局第一工程有限公司 | Large-diameter steel cylinder vibration sinking measurement positioning method |
| CN106996092A (en) * | 2017-05-22 | 2017-08-01 | 中国水利水电第十二工程局有限公司 | Barrier board setting method under water |
| CN110615064B (en) * | 2019-09-30 | 2020-12-15 | 广州黄船海洋工程有限公司 | Equipment installation point positioning method of saturated diving system |
| CN113789803A (en) * | 2021-10-28 | 2021-12-14 | 北京中地恒基建筑工程有限公司 | Construction method of slender open caisson and slender open caisson structure |
| CN114737591A (en) * | 2022-04-12 | 2022-07-12 | 交通运输部上海打捞局 | Cutter-suction type end plate auxiliary sinking system suitable for box-type end plate |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101003974A (en) * | 2006-12-22 | 2007-07-25 | 中铁大桥局股份有限公司 | Method for constructing groundwork for large-scale sinking well in deep water |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101003974A (en) * | 2006-12-22 | 2007-07-25 | 中铁大桥局股份有限公司 | Method for constructing groundwork for large-scale sinking well in deep water |
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