CN101158162A - Unmanned pneumatic caisson construction process - Google Patents
Unmanned pneumatic caisson construction process Download PDFInfo
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- CN101158162A CN101158162A CN 200710047754 CN200710047754A CN101158162A CN 101158162 A CN101158162 A CN 101158162A CN 200710047754 CN200710047754 CN 200710047754 CN 200710047754 A CN200710047754 A CN 200710047754A CN 101158162 A CN101158162 A CN 101158162A
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Abstract
The invention relates to a construction method of an unmanned air pressure caisson. The concrete construction steps are: 1. a construction preparation; 2. a first sinking of the caisson; 3. an extension of the caisson; 4. a later sinking of the caisson; 5. a bottom sealing construction. By installing an automatic excavator which can be operated remotely in the studio of the caisson, the construction method of the invention instructs operators on ground to remotely operate soil uploading by a monitoring system and discharges the soil out of the caisson by an unearthed system. The whole unearthed and construction process of the caisson can realize the unmanned construction, and can avoid the shortcomings of bad working environment, low safety and low construction efficiency when a manual operation is used largely during the construction of past caissons.
Description
Technical field
The present invention relates to a kind of construction techniques, especially a kind of pneumatic caisson job practices.
Background technology
At present, the pneumatic caisson construction mainly is to adopt manually-operated to carry out, and exists operating environment poor, and safety is low, the shortcoming that efficiency of construction is not high.Therefore, need a kind of novel unmanned pneumatic caisson construction process to replace manually-operated.By the automatic digging machine of remote-controlled operation is installed in air working chamber, the terrestrial operation personnel fetch earth by the surveillance straighforward operation, and by the system of being unearthed soil are discharged outside the case.The unearthed work progress of whole caisson can be realized unmanned construction.The artificial operation task environment of a large amount of uses is poor in the time of can avoiding caisson construction in the past, and safety is low, the shortcoming that efficiency of construction is not high.
Summary of the invention
Technical problem to be solved by this invention provides a kind of unmanned pneumatic caisson construction process, and the artificial operation task environment of a large amount of uses was poor when this method can be avoided caisson construction in the past, and safety is low, the shortcoming that efficiency of construction is not high.
For achieving the above object, the technical solution used in the present invention is:
A kind of unmanned pneumatic caisson construction process, concrete construction sequence is:
(1) preparation of construction
(1) the on-the-spot preparation
The place is arranged: arrange water, electric line according to field condition, construction temporory structure, Ground Control chamber; Place air compressor machine, mobile oxygen cabin, and carry out the layout of supply air line;
(3) caisson floor manufacture
1) according to on-the-spot soil property situation and form of structure, excavation pit is laid sand cushion, plain concrete bed course;
2) make caisson several times according to structure height, comprise that wherein the sword pin is made, base plate is made during floor manufacture, so that confined space is formed at the bottom; When making, base plate considers relevant device built-in fitting, the layout of pre-buried pipeline;
3) carry out after base plate is made and to be finished and the installation of construction equipment on the base plate the service depot in, mainly comprise: automatic excavator, belt conveyer, the spiral earth output machine, personnel pass in and out tower, and material passes in and out tower, and equipment such as service depot's intraoral illumination, communication, shooting; The scene sets water level observation well simultaneously, with observation WATER LEVEL CHANGES situation;
(2) caisson sinks for the first time
(1) after equipment installs, carry out caisson and sink for the first time, treat that cutting curb inserts 2 ~ 3 meters of undisturbed soils after, in the service depot, charge into air pressure, carry out the air pressure sinking construction;
(2) air working chamber internal gas pressure size should be excavated the extraneous water pressure size in face place with balance and exceeds, should be not too high or too low;
(3) caisson be unearthed to adopt the remote control form of being unearthed, and wherein is unearthed and takes spiral earth output machine form to be unearthed automatically, make the process of being unearthed need through loaded down with trivial details fill, deflation course, improved efficiency of construction.Material tower crane bucket can be unearthed form as standby measure simultaneously;
(4) too fast for preventing caisson initial stage subsidence velocity, a plurality of support sand piles are set in the caisson periphery, as supplemental support control caisson sinking speed, sand pile can freely be regulated the height of the strong point by suitably rushing down sand according to the caisson sinking needs, and can regulate the effect that each strong point height plays control caisson attitude respectively;
(3) caisson connects height
Make because caisson is divided into repeatedly, repeatedly sink, when sinking, need carry out structure and connect height; For improving efficiency of construction, the Gao Keyu that connects of the last joint borehole wall sinks to carrying out simultaneously, this moment, pin hand system can take to encorbelment on the borehole wall outside mode of bracket was set up external scaffolding, and interior pin hand can directly be set up on Bottom plate of sinkbox, go up subsequently connecing of the joint borehole wall high with sink to constructing simultaneously;
(4) the caisson later stage sinks
(1) control service depot air pressure: along with the increase of the caisson sinking degree of depth, service depot's air pressure should constantly be heightened, so that the ever-increasing extraneous water pressure of balance excavation face; But service depot's air pressure size should be excavated the extraneous water pressure size in face place with balance and exceeds, should be not too high or too low;
(2) force to press heavy: caisson sinking is to the later stage, because the effect of factors such as air pressure counter-force, the caisson sinking coefficient can reduce, and makes the caisson sinking difficulty, can utilize this moment add a plurality of pressure sinking systems force to press heavy; Wherein press the sinking system dynamical system to adopt jack, and press by earth anchor heavy; Utilize each jack to apply different pressures simultaneously and control the caisson attitude;
(3) caisson is unearthed and sinks identical for the first time with caisson;
(5) back cover construction
Caisson sinking carries out the back cover construction behind the final absolute altitude:
The invention has the beneficial effects as follows:
Job practices of the present invention is compared with existing manually-operated job practices, and by the automatic digging machine of remote-controlled operation is installed in air working chamber, the terrestrial operation personnel fetch earth by the surveillance straighforward operation, and by the system of being unearthed soil are discharged outside the case.The unearthed work progress of whole caisson can be realized unmanned construction.The artificial operation task environment of a large amount of uses is poor in the time of can avoiding caisson construction in the past, and safety is low, the shortcoming that efficiency of construction is not high.
The specific embodiment
Below in conjunction with specific embodiment, further set forth the present invention.Should be understood that these embodiment only to be used to the present invention is described and be not used in and limit the scope of the invention.Should be understood that in addition those skilled in the art can make various changes or modifications the present invention after the content of having read the present invention's instruction, these equivalent form of values fall within the application's appended claims institute restricted portion equally.
A kind of unmanned pneumatic caisson construction process of the present invention, concrete job practices and step are:
1. on-the-spot the preparation
Should be when (1) place is arranged according to field condition reasonable Arrangement water, electric line, construction temporory structure, Ground Control chamber etc.Should also be noted that the air compressor machine stand, mobile oxygen cabin stand, the layout of supply air line etc.Wherein the configuration of air compressor machine should be considered standby.The scene also should be equipped with emergency generator.
(2) must give training in advance to the hyperbar operating personnel.
2, the caisson floor manufacture
(1), lays sand cushion, plain concrete bed course according to on-the-spot soil property situation and the reasonable excavation pit of form of structure.And should note the draining of sand cushion.
(2) caisson can be divided into repeatedly making according to structure height, repeatedly sinks.Should comprise that wherein the sword pin is made, base plate is made during floor manufacture, so that confined space is formed at the bottom.When making, base plate should consider the relevant device built-in fitting, the layout of pre-buried pipeline.
(3) carry out in the service depot after base plate is made and to be finished and the installation of construction equipment on the base plate.Mainly comprise: automatic excavator, belt conveyer, the spiral earth output machine, personnel pass in and out tower, material turnover tower, and equipment such as service depot's intraoral illumination, communication, shooting.The scene should set water level observation well simultaneously, with observation WATER LEVEL CHANGES situation.
3. caisson sinks for the first time
(1) after equipment installs, can carry out caisson and sink for the first time,, sink to take not have the unearthed form of air pressure early stage because this moment, the cutting curb embedded depth was shallow.After treating that cutting curb inserts 2 ~ 3 meters of undisturbed soils, can in the service depot, charge into air pressure, carry out the air pressure sinking construction.
(2) air working chamber internal gas pressure size should be excavated the extraneous water pressure size in face place with balance and exceeds, should be not too high or too low.
(3) caisson is unearthed and adopts the unearthed form of remote control.Wherein be unearthed and take spiral earth output machine form to be unearthed automatically, make the process of being unearthed need through loaded down with trivial details fill, deflation course, improved efficiency of construction.Material tower crane bucket can be unearthed form as standby measure simultaneously.
(4) too fast for preventing caisson initial stage subsidence velocity, a plurality of support sand piles are set in the caisson periphery, as supplemental support control caisson sinking speed, sand pile can freely be regulated the height of the strong point by suitably rushing down sand according to the caisson sinking needs.And can regulate the effect that each strong point height plays control caisson attitude respectively.
4. caisson connects height
Make because caisson is divided into repeatedly, repeatedly sink, when sinking, need carry out structure and connect height (except sinking for the last time).Be to improve efficiency of construction, on save the borehole wall the Gao Keyu that connects sink to carrying out simultaneously.This moment, pin hand system can take to encorbelment on the borehole wall outside mode of bracket was set up external scaffolding, and interior pin hand can directly be set up on Bottom plate of sinkbox.Go up connecing height and sinking to constructing simultaneously of the joint borehole wall subsequently.
5. the caisson later stage sinks
(1) along with the increase of the caisson sinking degree of depth, service depot's air pressure should constantly be heightened, so that the ever-increasing extraneous water pressure of balance excavation face.But service depot's air pressure size should be excavated the extraneous water pressure size in face place with balance and exceeds, should be not too high or too low.
(2) caisson sinking is to the later stage, because the effect of factors such as air pressure counter-force, the caisson sinking coefficient can reduce, and makes the caisson sinking difficulty, can utilize this moment add a plurality of pressure sinking systems force to press heavy.Press the sinking system dynamical system can adopt jack, and press by earth anchor heavy.Simultaneously can utilize each jack to apply different pressures and control the caisson attitude.
(3) can pour water simultaneously by peripheral mud cover drag reduction is set, mode such as sand ballast assists sinking.
(4) general Ying Shen is with the decompression subsidence process, especially at sandy soil, and Ying Shenyong more in the artesian aquifer.
(5) the unearthed flow process of caisson and preceding same.
6. back cover construction
Caisson sinking should carry out the back cover construction behind final absolute altitude.Can adopt pre-buried at a certain distance conduit when Bottom plate of sinkbox (being service depot's top board) is made in advance, conduit diameter is corresponding with the concrete mixer size.In the caisson sinking process, the gate shutoff is adopted in the conduit upper end.When caisson sinking put in place prepare the back cover construction before, on Bottom plate of sinkbox, adopt one section of long duct to be connected with the pre-buried conduit of base plate, another section is connected with the ground pump truck conduit.Adopt directly concreting in the service depot of pump truck.Bottom concrete requires to adopt self-leveling concrete, to guarantee that concrete can pave within the specific limits naturally in the service depot.When a place build finish after, pump truck moves on to next conduit place to be continued to build, and is full of space, whole service depot until bottom concrete.After bottom concrete reaches intensity, again the pressure injection cement paste is carried out in the gap between itself and the base plate and handle.
7. service depot's corrective maintenance and maintenance
Construction equipment needs personnel to enter under the hyperbaric environment in the service depot by personnel's tower in work progress to maintain in the service depot.Operating personnel's operation finishes and still passes through personnel's tower program decompression deliver from vault in accordance with regulations.
8. hyperbar job safety
For guaranteeing operating personnel's safety under the hyperbar, the related personnel must pass through professional training, and on-the-spot palpus is equipped with professional air pressure doctor.The operating personnel passes in and out hyperbaric environment must strictly observe relevant decompression program.On-the-spot palpus is equipped with mobile decompression chamber, makes emergency power.
Claims (2)
1. a unmanned pneumatic caisson construction process is characterized in that, concrete construction sequence is:
(1) preparation of construction
(1) the on-the-spot preparation
The place is arranged: arrange water, electric line according to field condition, construction temporory structure, Ground Control chamber; Place air compressor machine, mobile oxygen cabin, and carry out the layout of supply air line;
(2) caisson floor manufacture
1) according to on-the-spot soil property situation and form of structure, excavation pit is laid sand cushion, plain concrete bed course;
2) make caisson several times according to structure height, comprise that wherein the sword pin is made, base plate is made during floor manufacture, so that confined space is formed at the bottom; When making, base plate considers relevant device built-in fitting, the layout of pre-buried pipeline;
3) carry out after base plate is made and to be finished and the installation of construction equipment on the base plate the service depot in, mainly comprise: automatic excavator, belt conveyer, the spiral earth output machine, personnel pass in and out tower, and material passes in and out tower, and equipment such as service depot's intraoral illumination, communication, shooting; The scene sets water level observation well simultaneously, with observation WATER LEVEL CHANGES situation;
(2) caisson sinks for the first time
(1) after equipment installs, carry out caisson and sink for the first time, treat that cutting curb inserts 2 ~ 3 meters of undisturbed soils after, in the service depot, charge into air pressure, carry out the air pressure sinking construction;
(2) air working chamber internal gas pressure size should be excavated the extraneous water pressure size in face place with balance and exceeds, should be not too high or too low;
(3) caisson be unearthed to adopt the remote control form of being unearthed, and wherein is unearthed and takes spiral earth output machine form to be unearthed automatically, make the process of being unearthed need through loaded down with trivial details fill, deflation course, improved efficiency of construction.Material tower crane bucket can be unearthed form as standby measure simultaneously;
(4) too fast for preventing caisson initial stage subsidence velocity, a plurality of support sand piles are set in the caisson periphery, as supplemental support control caisson sinking speed, sand pile can freely be regulated the height of the strong point by suitably rushing down sand according to the caisson sinking needs, and can regulate the effect that each strong point height plays control caisson attitude respectively;
(3) caisson connects height
Make because caisson is divided into repeatedly, repeatedly sink, when sinking, need carry out structure and connect height; For improving efficiency of construction, the Gao Keyu that connects of the last joint borehole wall sinks to carrying out simultaneously, this moment, pin hand system can take to encorbelment on the borehole wall outside mode of bracket was set up external scaffolding, and interior pin hand can directly be set up on Bottom plate of sinkbox, go up subsequently connecing of the joint borehole wall high with sink to constructing simultaneously;
(4) the caisson later stage sinks
(1) control service depot air pressure: along with the increase of the caisson sinking degree of depth, service depot's air pressure should constantly be heightened, so that the ever-increasing extraneous water pressure of balance excavation face; But service depot's air pressure size should be excavated the extraneous water pressure size in face place with balance and exceeds, should be not too high or too low;
(2) force to press heavy: caisson sinking is to the later stage, because the effect of factors such as air pressure counter-force, the caisson sinking coefficient can reduce, and makes the caisson sinking difficulty, can utilize this moment add a plurality of pressure sinking systems force to press heavy; Wherein press the sinking system dynamical system to adopt jack, and press by earth anchor heavy; Utilize each jack to apply different pressures simultaneously and control the caisson attitude;
(3) caisson is unearthed and sinks identical for the first time with caisson;
(5) back cover construction
Caisson sinking carries out the back cover construction behind the final absolute altitude:
Adopt pre-buried at a certain distance conduit when Bottom plate of sinkbox is made in advance, conduit diameter is corresponding with the concrete mixer size; In the caisson sinking process, the gate shutoff is adopted in the conduit upper end; When caisson sinking put in place prepare the back cover construction before, on Bottom plate of sinkbox, adopt one section of long duct to be connected with the pre-buried conduit of base plate, another section is connected with the ground pump truck conduit, and the direct concreting in the service depot of employing pump truck; Bottom concrete requires to adopt self-leveling concrete, to guarantee that concrete can pave within the specific limits naturally in the service depot; When a place build finish after, pump truck moves on to next conduit place to be continued to build, and is full of space, whole service depot until bottom concrete; After bottom concrete reaches intensity, again the pressure injection cement paste is carried out in the gap between itself and the base plate and handle.
2. unmanned pneumatic caisson construction process according to claim 1 is characterized in that, above-mentioned pressure presses that heavy method also can be poured water by peripheral mud cover drag reduction is set, sand ballast mode is assisted sinking.
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| CN2007100477542A CN101158162B (en) | 2007-11-02 | 2007-11-02 | Unmanned pneumatic caisson construction process |
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| CN2007100477542A CN101158162B (en) | 2007-11-02 | 2007-11-02 | Unmanned pneumatic caisson construction process |
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| CN101158162A true CN101158162A (en) | 2008-04-09 |
| CN101158162B CN101158162B (en) | 2010-11-03 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101294401B (en) * | 2008-05-23 | 2010-12-08 | 同济大学 | Soil nail fixing type telecontrol digging machine |
| CN102864790A (en) * | 2012-10-26 | 2013-01-09 | 中船第九设计研究院工程有限公司 | Caisson-type water pump house construction method |
| CN103031851A (en) * | 2012-12-14 | 2013-04-10 | 中国一冶集团有限公司 | Caisson device and construction method for caisson device applied to water foundation ditch |
| CN104032764A (en) * | 2014-06-13 | 2014-09-10 | 上海市基础工程集团有限公司 | Press-in type sunk well reaction system |
| CN106498969A (en) * | 2016-10-20 | 2017-03-15 | 兰州理工大学 | The construction method of space frame formula steel caisson retaining structure |
| CN107119703A (en) * | 2017-05-10 | 2017-09-01 | 刘丽娟 | A kind of water conservancy rushes heavy well construction equipment |
Family Cites Families (3)
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| CN100347381C (en) * | 2005-04-14 | 2007-11-07 | 上海交通大学 | Remote monitoring and maintaining system of pneumatic paisson unmanned construction equipment |
| CN100387790C (en) * | 2005-08-05 | 2008-05-14 | 卢如年 | Ground caisson construction technology and ground caisson |
| CN100465999C (en) * | 2006-10-26 | 2009-03-04 | 上海交通大学 | Caisson 3D scene rebuilding and excavator collision avoidance system based on laser scanning |
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- 2007-11-02 CN CN2007100477542A patent/CN101158162B/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101294401B (en) * | 2008-05-23 | 2010-12-08 | 同济大学 | Soil nail fixing type telecontrol digging machine |
| CN102864790A (en) * | 2012-10-26 | 2013-01-09 | 中船第九设计研究院工程有限公司 | Caisson-type water pump house construction method |
| CN102864790B (en) * | 2012-10-26 | 2014-10-01 | 中船第九设计研究院工程有限公司 | Caisson-type water pump house construction method |
| CN103031851A (en) * | 2012-12-14 | 2013-04-10 | 中国一冶集团有限公司 | Caisson device and construction method for caisson device applied to water foundation ditch |
| CN103031851B (en) * | 2012-12-14 | 2015-10-28 | 中国一冶集团有限公司 | The construction method of caisson application of installation in water base hole |
| CN104032764A (en) * | 2014-06-13 | 2014-09-10 | 上海市基础工程集团有限公司 | Press-in type sunk well reaction system |
| CN106498969A (en) * | 2016-10-20 | 2017-03-15 | 兰州理工大学 | The construction method of space frame formula steel caisson retaining structure |
| CN106498969B (en) * | 2016-10-20 | 2018-10-16 | 兰州理工大学 | The construction method of space frame formula steel caisson retaining structure |
| CN107119703A (en) * | 2017-05-10 | 2017-09-01 | 刘丽娟 | A kind of water conservancy rushes heavy well construction equipment |
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| CN101158162B (en) | 2010-11-03 |
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Effective date of registration: 20100331 Address after: 200433 Yangpu District, Shanghai Star Road, No. 231 Applicant after: Shanghai Foundation Engineering Co., Ltd. Address before: 200433 Yangpu District, Shanghai Star Road, No. 231 Applicant before: Foundation Engineering Co. of Shanghai City |
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Address after: 200433 Yangpu District, Shanghai Star Road, No. 231 Patentee after: Shanghai Foundation Engineering Group Co., Ltd. Address before: 200433 Yangpu District, Shanghai Star Road, No. 231 Patentee before: Shanghai Foundation Engineering Co., Ltd. |