CN1441127A - Caisson structure and fast construction method of opencaisson - Google Patents
Caisson structure and fast construction method of opencaisson Download PDFInfo
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- CN1441127A CN1441127A CN 03117649 CN03117649A CN1441127A CN 1441127 A CN1441127 A CN 1441127A CN 03117649 CN03117649 CN 03117649 CN 03117649 A CN03117649 A CN 03117649A CN 1441127 A CN1441127 A CN 1441127A
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- caisson
- open caisson
- well
- wall
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Abstract
The caisson structure contains caisson walls to constitute the caisson enclosure separated into several sections, and partition walls and crossbeams inside the caisson enclosure. There are edged feet in the lowest caisson section, steps on the containing partition walls between each two sections, vibrators inside the steps, built-in high pressure water pipe inside the caisson walls, branch pipes, built-in cable tubes communicated with the vibration controller, and clamping steel plates around the upper and the lower caisson enclosures and on two sides of the partitions to integrate the caisson structure. The fast construction method of open caisson includes sectional prefabrication, sectional installation and sectional stamping until reaching the designed height, and has fast construction speed and low cost.
Description
One, technical field
The present invention relates to a kind of derrick geometry device of quick open caisson and become the well construction method, belong to the sinking well engineering field in the treatment of soft foundation.
Two, background technology
In treatment of soft foundation, open caisson to the bearing capacity that improves the basis, stop Slope Sliding, block ground seepage flow and antiscour is a kind of safe and reliable structure.But its maximum shortcoming is a traditional design only to be overcome basic earth by caisson structure deadweight the frictional resistance of the borehole wall is sunk.Therefore, along with the increase of submergence depth protruded length, must increase thickness of shaft wall and increase deadweight to overcome the wall friction resistance that increases because of submergence depth except the cast-in-place borehole wall of spreading.By this principle design open caisson, the caisson structure size is huge, and it is many to consume constructional materials, and is difficult to adopt prefabrication and lifting, accelerating construction progress.This cast-in-place open caisson sinks slowly, has directly delayed the control duration of Foundation Design, thereby has incured loss through delay total duration of engineering.It is exactly outstanding illustration that the open caisson group construction period of leading foundation of wall in the diversion canal of western Sichuan power station reaches 33 months.Facts have proved that traditional open caisson construction speed is its major defect slowly, only sinking with deadweight is its main cause slowly of sinking.Poured in place concrete is adopted in construction in addition, and its duration is further extended.Cause the significant wastage of material resources and manpower.
Three, summary of the invention
The derrick geometry device of open caisson is provided to provide at the deficiencies in the prior art in a kind of treatment of soft foundation fast and becomes the well construction method, be characterized in spining by shaking the frictional resistance between the low open caisson borehole wall and the soil body and the resistance of sword foot portion carry out quick open caisson.
Purpose of the present invention is realized by following technical measures:
The derrick geometry device of open caisson contains caisson wall (1) and open caisson partition wall (2) fast, constitute walling crib around the caisson wall, establish contact crossbeam or partition wall (2) in the walling crib, walling crib constitutes some well sections up and down, establish sword pin (8) at the bottom of lower floor's well section, establish up/down steps on the partition wall between the well section, installing several vibration exciters (4) in the step, pre-buried high-pressure flush is responsible for (10), arm (11), shower nozzle (12), the pre-buried cable conduit of partition wall intersection (13), cable conduit and the controller that impulses (14) conducting in around the borehole wall, constitutes the derrick geometry device integral body of quick open caisson.
Vibrator (4) is connected by vertical anchor bolt (3) with partition wall (2), establishes fixing sealing steel clamping plate (6) on the vibration exciter outer wall partition wall with horizontal anchor bolt (7) connection, and the well section is connected with horizontal anchor bolt (7) with borehole wall steel clamping plate (5) between the well section.
Caisson cutting edge (8) is provided with bath shower nozzle (12), and the bath shower nozzle is connected with pressure bath arm (11), and pressure bath arm is responsible for (10) with the pressure bath and is connected, and the intersegmental jet water spout of open caisson connects with the flexible high pressure flexible pipe.
Caisson cutting edge (8) outsourcing protection shaped steel (9).
The one-tenth well construction method of the derrick geometry device of quick open caisson:
(1) caisson structure is the rigidity earthquake resistant structure, the manufacture craft of open caisson does not have remarkable difference with general structure of reinforced concrete, should be with slipping the slow concrete that unloads of tube, to the more sparse position of reinforcing bar, available plug-in type vibrator shake is smash, build that shake is gone back applying X-ray after smashing or the infra-red inspection instrument is checked concrete compactness, in order to guarantee the smooth well sinking frictional resistance that reduces of the borehole wall, should build the open caisson concrete with steel form, concrete grade is not less than 250～No. 300, note watering the back maintenance, should not be shorter than the demould time of tradition construction.
(2) sinking construction of open caisson step preface is identical substantially with traditional well sinking fast, the open caisson walling crib adopts the fabricate block lifting fast, and shaking after installing vibration exciter sweeps away heavy one section, installs one section again, shake again and sweep away heavy one section, vibration exciter sinks with well sinking, the frictional resistance of heavy journey caisson wall can both be reduced, until design altitude, when well sinking degree of depth chin-deep, the interior soil body that must constantly dig a well clearly so that fill concrete in the well chamber, finally becomes firm entity.
(3) be connected the syndeton that can adopt traditional open caisson identical between open caisson and open caisson, open caisson put in place stable back with Churn drill pore-creating between open caisson, in slotted eye descending reinforcing cage, cast-in-situ concrete once becomes wall.
The present invention has following advantage:
1, fast open caisson is brought by shaking and is reduced the well sinking resistance and realize that open caisson sinks fast.Thereby increase open caisson deadweight sinking with respect to traditional open caisson design by increasing the caisson structure size, can produce the effect of getting twice the result with half the effort undoubtedly.If the friction factor between the borehole wall and the soil body is reduced to 0.08～0.06 by 0.45～0.60 by shock energy, mean and the dead load of open caisson can be reduced 80%～89%, still can guarantee the sinking effect of open caisson.Tradition caisson wall thickness can reach 1～2M.And shake towards open caisson, because its thickness of shaft wall only satisfies structure and shockproof requirements, can be controlled in the 0.3-0.25M, thereby the concrete raw material of making open caisson is reduced at double.
2, owing to the construction technology with open caisson changes prefabrication and lifting into by traditional cast in situs, not only can reduce site operation and disturb, help improving the Concrete Construction quality.
3, the open caisson prefabrication and lifting is fast fast, and subsidence velocity is fast, so the open caisson construction duration is shortened dramatically, construction and administration cost during construction is significantly reduced, and major project is benefited early, and social benefit of bringing thus and economic benefit are very surprising.Be example to lead foundation of wall open caisson group engineering in western certain power station diversion canal below, carry out rough calculation.If adopt quick open caisson can shorten 1.5 years engineering straight line durations, the power station shifts to an earlier date a year and a half generating, and its economic benefit is very significant.For the power station of 601,000 watts of installations, annual utilization hours can be spent by multiple electricity 1.5 * 5000 * 600,000,=45 hundred million, if average electricity price then can increase by 900,000,000 yuan of RMB by 0.2 yuan of every degree by 5000 hours.Calculate in this way and do not comprise that still because of the duration shortens, the engineering quantity minimizing is constructed and management fee thereby reduce.
Four, description of drawings
Fig. 1 is the derrick geometry vertical view of quick open caisson.
Fig. 2 is the A-A sectional view.
Fig. 3 is the B-B sectional view.
1 caisson wall, 2 open caisson partition walls, 3 vertical anchor bolts, 4 vibration exciters, 5 borehole wall steel clamping plate, 6 partition walls sealing steel clamping plate, 7 horizontal anchor bolts, 8 caisson cutting edges, 9 protection shaped steel, 10 high-pressure flush are responsible for, 11 bath arms, 12 shower nozzles, 13 cable conduits, 14 vibration exciter controllers.
Five, the specific embodiment
Below by embodiment the present invention is specifically described; be necessary to be pointed out that at this present embodiment only is used for the present invention is further specified; can not be interpreted as limiting the scope of the invention, the person skilled in the art in this field can make some nonessential improvement and adjustment according to the content of the invention described above.
Embodiment
The derrick geometry device of open caisson is shown in Fig. 1～3 fast, this device contains caisson wall 1 and open caisson partition wall 2, the borehole wall constitutes walling crib around the open caisson, establish contact crossbeam or partition wall 2 in the walling crib, walling crib constitutes some well sections up and down, establish sword pin 8 at the bottom of lower floor's well section, establish up/down steps on the connection partition wall between the well section, several vibration exciters 4 of installing in the step, all around in the borehole wall pre-buried high-pressure flush be responsible for 10, arm 11, shower nozzle 12, the pre-buried cable conduit 13 of partition wall intersection, cable conduit and controller 14 conductings that impulse constitute the derrick geometry device integral body of quick open caisson.
Vibrator 4 is connected by vertical anchor bolt 3 with partition wall 2, establishing the horizontal anchor bolt 7 of fixing sealing steel clamping plate 6 usefulness on the vibration exciter outer wall partition wall connects, the well section is connected with the horizontal anchor bolt 7 of borehole wall steel clamping plate 5 usefulness between the well section, it is connecting hole that horizontal anchor bolt hole can form it with pre-buried pvc pipe, is again the hole for hoist of walling crib.
Caisson cutting edge 8 is provided with bath shower nozzle 12, and the bath shower nozzle is connected with pressure bath arm 11, and the bath arm is responsible for 10 with the pressure bath and is connected, and the intersegmental jet water spout of open caisson connects with the flexible high pressure flexible pipe.Flexible hose couplings can be suitable for vibration deformation, and block-water effect is arranged again, and it is inaccurate because of locating to overcome the intersegmental lifting of adjustment well, causes lower tube section to connect the deviation that occurs.
Caisson cutting edge 8 outsourcings protection shaped steel 9.
The one-tenth well construction method of the derrick geometry device of quick open caisson:
1, caisson structure is the rigidity earthquake resistant structure, and caisson structure bears upper building load, foundation soil pressure and the groundwater pressure requirement except that satisfying, and also will bear the dynamic loading of vibrations, until well sinking till the design altitude.
2, in treatment of soft foundation, fast open caisson adopts to shake and sweeps away heavyly, destroys for preventing foundation instability, to control subsidence velocity on the one hand, should the walling crib penetration resistance be increased at continuous backfill sandy gravel of well week on the other hand, prevent that well Zhou Tuti excessive deformation from causing unstable failure.
3, adopt mud or gravel in the vacuum draw well, control criterion should be a principle not cause that well Zhou Tuti destroys, and for the Da Shi that occurs in the well, still can adopt down-hole controlled blasting to change big gun, clears with grab bucket or hanging basket.
4, what and oscillation power of vibration exciter are neglected the walling crib physical dimension size and the borehole wall and soil body frictional resistance size greatly and are set, impulse vibrator by electric cranking, realize synchronous or asynchronous vibrations by phase modulation, frequency modulation, the vibrating controller of vibration exciter is positioned at the face of land, open caisson top all the time.
5, the manufacture craft of open caisson does not have remarkable difference with general structure of reinforced concrete, should be with slipping the slow concrete that unloads of tube, to the sparse position of reinforcing bar, the shake of available plug-in type vibrator is smash, and builds to go back applying X-ray after shake is smash or the infra-red inspection instrument is checked concrete compactness, in order to guarantee the smooth well sinking frictional resistance that reduces of the borehole wall, should build the open caisson concrete with steel form, concrete grade is not less than 250～No. 300, notes watering the back maintenance, is not shorter than the demould time of tradition construction.
6, the sinking construction of open caisson step preface is identical substantially with traditional well sinking fast, the open caisson walling crib adopts the fabricate block lifting fast, and traditional open caisson adopts on-the-spot formwork erection to build, and sinks one section, continuity is built one section, guarantees well sinking by increasing thickness of shaft wall prolongation well depth; Open caisson then is with one section of prefabricated walling crib lifting fast, after installing vibration exciter, shake and sweep away heavy one section, install one section again, shake and sweep away heavy one section, vibration exciter sinks with well sinking, the frictional resistance of heavy journey caisson wall can both be reduced, until design altitude, when well sinking degree of depth chin-deep, the interior soil body must constantly dig a well clearly.So that in the well chamber, fill concrete, finally become firm entity.
7, be connected the syndeton that can adopt traditional open caisson identical between open caisson and open caisson, open caisson put in place stable after, with Churn drill pore-creating between open caisson, in slotted eye descending reinforcing cage, cast-in-situ concrete once becomes wall.
Claims (6)
1, the derrick geometry device of quick open caisson, it is characterized in that this derrick geometry device contains caisson wall (1) and open caisson partition wall (2), the borehole wall constitutes walling crib around the open caisson, establish contact crossbeam or partition wall (2) in the walling crib, walling crib constitutes some well sections up and down, establish sword pin (8) at the bottom of lower floor's well section, establish up/down steps on the connection partition wall between the well section, several symmetrical vibration exciters (4) of installing in the step, pre-buried high-pressure flush is responsible for (10) in the borehole wall all around, arm (11), shower nozzle (12), the pre-buried cable conduit of partition wall intersection (13), the cable conduit and controller (14) conducting that impulses constitute derrick geometry device integral body.
2, according to the derrick geometry device of the described quick open caisson of claim 1, it is characterized in that vibrator (4) is connected by vertical anchor bolt (3) with partition wall (2), establish fixing sealing steel clamping plate (6) on the vibration exciter outer wall partition wall with horizontal anchor bolt (7) connection, the well section is connected with horizontal anchor bolt (7) with borehole wall steel clamping plate (5) between the well section.
3, according to the derrick geometry device of claim 1 or 2 described quick open caissons, it is characterized in that sword pin (8) is provided with bath shower nozzle (12), the bath shower nozzle is connected with pressure bath arm (11), pressure bath arm is responsible for (10) with the pressure bath and is connected, and the intersegmental jet water spout of open caisson connects with the flexible high pressure flexible pipe.
4,, it is characterized in that sword pin (8) outsourcing protection shaped steel (9) according to the derrick geometry device of claim 1 or 2 described quick open caissons.
5,, it is characterized in that sword pin (8) outsourcing protection shaped steel (9) according to the derrick geometry device of the described quick open caisson of claim 3.
6, according to the one-tenth well construction method of the derrick geometry device of the described quick open caisson of claim 1～5, it is characterized in that:
(1) caisson structure is the rigidity earthquake resistant structure, the manufacture craft of open caisson does not have remarkable difference with general structure of reinforced concrete, should be with slipping the slow concrete that unloads of tube, to the more sparse position of reinforcing bar, available plug-in type vibrator shake is smash, build that shake is gone back applying X-ray after smashing or the infra-red inspection instrument is checked concrete compactness, in order to guarantee the smooth well sinking frictional resistance that reduces of the borehole wall, should build the open caisson concrete with steel form, concrete grade is not less than 250～No. 300, note watering the back maintenance, should not be shorter than the demould time of tradition construction
(2) sinking construction of open caisson step preface is identical substantially with traditional well sinking fast, the open caisson walling crib adopts the fabricate block lifting fast, and shaking after installing vibration exciter sweeps away heavy one section, installs one section again, shake again and sweep away heavy one section, vibration exciter sinks with well sinking, until design altitude, when well sinking degree of depth chin-deep, the interior soil body must constantly dig a well clearly, so that in the well chamber, fill concrete, finally become firm entity
(3) be connected the syndeton that can adopt traditional open caisson identical between open caisson and open caisson, open caisson put in place stable back with Churn drill pore-creating between open caisson, in slotted eye descending reinforcing cage, cast-in-situ concrete once becomes wall.
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| CN 03117649 CN1245559C (en) | 2003-04-09 | 2003-04-09 | Caisson structure and fast construction method of opencaisson |
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| CN 03117649 CN1245559C (en) | 2003-04-09 | 2003-04-09 | Caisson structure and fast construction method of opencaisson |
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| CN1441127A true CN1441127A (en) | 2003-09-10 |
| CN1245559C CN1245559C (en) | 2006-03-15 |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100387790C (en) * | 2005-08-05 | 2008-05-14 | 卢如年 | Ground caisson construction technology and ground caisson |
| WO2009094912A1 (en) * | 2008-01-24 | 2009-08-06 | Cixin Ding | Caisson structure and method of sinking the caisson structure into the ground exactly |
| CN101787703A (en) * | 2010-03-17 | 2010-07-28 | 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 |
| WO2010111947A1 (en) * | 2009-03-31 | 2010-10-07 | Lu Runian | Construction method for building underwater structures by liquefying and discarding soil |
| CN103693176A (en) * | 2013-11-29 | 2014-04-02 | 中交第四航务工程局有限公司 | Caisson dock gate |
| CN104863169A (en) * | 2015-04-21 | 2015-08-26 | 成都佳美嘉科技有限公司 | Open caisson structure |
| CN104988940A (en) * | 2015-05-19 | 2015-10-21 | 中铁大桥局集团有限公司 | Guiding method and device used for positioning steel open caisson |
| CN106088125A (en) * | 2016-06-06 | 2016-11-09 | 中铁大桥局集团有限公司 | Soil body underwater demolition drawing out soil equipment and method thereof immediately below the cutting shoe of open caisson |
| CN106638599A (en) * | 2017-01-03 | 2017-05-10 | 江苏工程职业技术学院 | Construction technology of open caisson vibroflotation type reinforced concrete pile composite foundation |
| CN106759335A (en) * | 2017-01-03 | 2017-05-31 | 江苏工程职业技术学院 | A kind of energy-saving open caisson vibrosinking pile Composite foundation construction technique |
| CN109339085A (en) * | 2018-11-20 | 2019-02-15 | 核工业井巷建设集团公司 | A kind of diversion works prefabricated open caisson installation equipment |
| CN110424282A (en) * | 2019-07-19 | 2019-11-08 | 新昌县凌智机械有限公司 | A kind of peripheral rock-fall proof enclosure device of open caisson construction |
| US10555091B2 (en) | 2017-09-15 | 2020-02-04 | Stmicroelectronics S.R.L. | Method for manufacturing a thin filtering membrane and an acoustic transducer device including the filtering membrane |
| CN111764421A (en) * | 2020-06-30 | 2020-10-13 | 中国二十二冶集团有限公司 | Construction method of assembled open caisson method of cyclone well |
| CN113123793A (en) * | 2021-04-09 | 2021-07-16 | 金诚信矿业管理股份有限公司 | Weak stratum vertical shaft derrick structure and construction method thereof |
-
2003
- 2003-04-09 CN CN 03117649 patent/CN1245559C/en not_active Expired - Fee Related
Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100387790C (en) * | 2005-08-05 | 2008-05-14 | 卢如年 | Ground caisson construction technology and ground caisson |
| WO2009094912A1 (en) * | 2008-01-24 | 2009-08-06 | Cixin Ding | Caisson structure and method of sinking the caisson structure into the ground exactly |
| CN101918643A (en) * | 2008-01-24 | 2010-12-15 | 丁慈鑫 | Caisson structure and method of sinking the caisson structure into the ground exactly |
| CN101418573B (en) * | 2008-01-24 | 2012-09-05 | 丁慈鑫 | Caisson structure and method for smoothly and accurately sinking caisson structure into earth surface |
| CN101918643B (en) * | 2008-01-24 | 2012-10-10 | 丁慈鑫 | Caisson structure and method of sinking the caisson structure into the ground exactly |
| WO2010111947A1 (en) * | 2009-03-31 | 2010-10-07 | Lu Runian | Construction method for building underwater structures by liquefying and discarding soil |
| CN101787703A (en) * | 2010-03-17 | 2010-07-28 | 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 |
| CN103693176A (en) * | 2013-11-29 | 2014-04-02 | 中交第四航务工程局有限公司 | Caisson dock gate |
| CN104863169A (en) * | 2015-04-21 | 2015-08-26 | 成都佳美嘉科技有限公司 | Open caisson structure |
| CN104988940B (en) * | 2015-05-19 | 2016-12-07 | 中铁大桥局集团有限公司 | Guidance method and device for steel open caisson location |
| CN104988940A (en) * | 2015-05-19 | 2015-10-21 | 中铁大桥局集团有限公司 | Guiding method and device used for positioning steel open caisson |
| CN106088125A (en) * | 2016-06-06 | 2016-11-09 | 中铁大桥局集团有限公司 | Soil body underwater demolition drawing out soil equipment and method thereof immediately below the cutting shoe of open caisson |
| CN106088125B (en) * | 2016-06-06 | 2018-03-30 | 中铁大桥局集团有限公司 | Soil body underwater demolition drawing out soil equipment and its method immediately below the cutting shoe of open caisson |
| CN106638599A (en) * | 2017-01-03 | 2017-05-10 | 江苏工程职业技术学院 | Construction technology of open caisson vibroflotation type reinforced concrete pile composite foundation |
| CN106759335A (en) * | 2017-01-03 | 2017-05-31 | 江苏工程职业技术学院 | A kind of energy-saving open caisson vibrosinking pile Composite foundation construction technique |
| US10555091B2 (en) | 2017-09-15 | 2020-02-04 | Stmicroelectronics S.R.L. | Method for manufacturing a thin filtering membrane and an acoustic transducer device including the filtering membrane |
| US11317219B2 (en) | 2017-09-15 | 2022-04-26 | Stmicroelectronics S.R.L. | Method for manufacturing a thin filtering membrane and an acoustic transducer device including the filtering membrane |
| CN109339085A (en) * | 2018-11-20 | 2019-02-15 | 核工业井巷建设集团公司 | A kind of diversion works prefabricated open caisson installation equipment |
| CN109339085B (en) * | 2018-11-20 | 2024-02-13 | 核工业井巷建设集团有限公司 | Diversion engineering prefabricated open caisson installation equipment |
| CN110424282A (en) * | 2019-07-19 | 2019-11-08 | 新昌县凌智机械有限公司 | A kind of peripheral rock-fall proof enclosure device of open caisson construction |
| CN110424282B (en) * | 2019-07-19 | 2021-06-25 | 新昌县凌智机械有限公司 | Peripheral rockfall prevention enclosure device for open caisson construction |
| CN111764421A (en) * | 2020-06-30 | 2020-10-13 | 中国二十二冶集团有限公司 | Construction method of assembled open caisson method of cyclone well |
| CN113123793A (en) * | 2021-04-09 | 2021-07-16 | 金诚信矿业管理股份有限公司 | Weak stratum vertical shaft derrick structure and construction method thereof |
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