CN109137954A - A kind of underwater rubble using airlift suction dredger paves construction technology - Google Patents
A kind of underwater rubble using airlift suction dredger paves construction technology Download PDFInfo
- Publication number
- CN109137954A CN109137954A CN201810810156.4A CN201810810156A CN109137954A CN 109137954 A CN109137954 A CN 109137954A CN 201810810156 A CN201810810156 A CN 201810810156A CN 109137954 A CN109137954 A CN 109137954A
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- Prior art keywords
- rubble
- wellhole
- open caisson
- filled
- suction
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Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D23/00—Caissons; Construction or placing of caissons
- E02D23/16—Jointing caissons to the foundation soil, specially to uneven foundation soil
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/10—Placing gravel or light material under water inasmuch as not provided for elsewhere
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- Revetment (AREA)
- Underground Or Underwater Handling Of Building Materials (AREA)
Abstract
It paves construction technology the invention discloses a kind of underwater rubble using airlift suction dredger, the technique first passes through chute and fills rubble to open caisson wellhole, then rubble to other wellholes are inhaled from the open caisson wellhole with suction dredge to be filled, the rubble absolute altitude of observation wellhole in real time, and suction dredge work is controlled, until when all wellholes are filled to design position.The status of rubble that this method, which changes, can only currently be conveyed or be toppled over by crawler belt, handling of grabbing bucket paves, will usually occur fail to fill in, the rubble of extra-fill filling become quality controllable, guarantee is provided for concrete sealing bottom, and work efficiency can be substantially increased with multi-point distribution.
Description
Technical field
The invention belongs to technical field of construction, and in particular to a kind of underwater rubble using airlift suction dredger paves work of constructing
Skill.
Background technique
Well sinking will be filled first using rubble before carrying out back cover in place, levelling ground.Rubble filled layer is back cover coagulation
The foundation of soil, is the quality assurance of subsequent construction, extra-fill, which fails to fill in, can all seriously affect construction quality.
The underwater rubble filling of open caisson has great difficulty all the time, is primarily due to construct under water, and operation difficulty is big,
And it is difficult to be adjusted flexibly according to the monitoring situation that paves at any time.Traditional rubble fill process makes this difficult more prominent
Out.Traditional underwater rubble fill process is conveyed using crawler belt or is toppled over, by the way of handling of grabbing bucket, and it is heavy directly to pour into rubble
Well borehole bottom, rubble Altitude rely on construction personnel technology and experience accumulation, can not quantified controlling, filling lacked still
To continue to pour into, filling excess, which then needs to take considerable time, to be dug out or is difficult to handle with manpower, and can not carry out multiple spot cloth
Material, this seriously affects construction speed, considerably increases input cost.
Summary of the invention
In view of the problems of the existing technology, the purpose of the present invention is to provide a kind of using the underwater broken of airlift suction dredger
Stone paves construction technology, the underwater metalling filling quality of active control, eliminates rubble filling quality defect, prevents from failing to fill in, extra-fill,
Construction efficiency is improved, cost input is reduced.
Above-mentioned purpose of the invention is achieved through the following technical solutions:
A kind of underwater rubble using airlift suction dredger paves construction technology, first passes through chute directly to any open caisson wellhole
Rubble is filled, rubble to other wellholes are then inhaled from any open caisson wellhole using suction dredge and are filled, are carved according to lining rope
Degree observes the rubble absolute altitude control suction dredge work of other wellholes in real time, until other all described wellholes are filled to design
When position, the rubble filling thickness for controlling any open caisson wellhole is 0.7~1m, then feed supplement is filled to 1m.
Further, the above-mentioned underwater rubble using airlift suction dredger paves construction technology, from any open caisson well
When hole suction rubble to other wellholes are filled, multi-point distribution is carried out by spreading or shortening pump line and guarantees that flatness is less than
30cm。
Further, the above-mentioned underwater rubble using airlift suction dredger paves construction technology, from any open caisson
When wellhole suction rubble to other wellholes are filled, absolute altitude situation is tested according to lining rope and adjusts cloth discharge position, from airlift suction dredger
Conveyance conduit installs hose coupling and carries out multidirectional cloth adjustment, until flatness is met the requirements.
The above-mentioned underwater rubble using airlift suction dredger paves construction technology as a preferred technical solution, first passes through and slips
Slot directly fills rubble 2-3m to all open caisson wellholes of the first long side, then uses open caisson of several suction dredges from the first long side
The open caisson wellhole that wellhole inhales rubble to the second long side is filled, and refills remaining wellhole.
Above-mentioned optimal technical scheme first fills the open caisson wellhole in two long sides, main to consider that first envelope long side blade foot prevents from gushing
Sand combines whole balance.
The beneficial effects of the present invention are: underwater rubble filling uses suction dredge pumping construction technique, observes absolute altitude at any time
Suction dredge work is controlled, process is continuously controllable, and pourability filling causes loading uncontrollable during overcoming traditional construction, fills out
The disadvantages of mesenchymal amount is not uncontrollable, easy to operate.Present invention process can be with multi-point distribution, and high-efficient, flatness is easy to control.It uses
This method, had not only improved rubble charging efficiency but also the quality problems that will likely occur are effectively controlled, and made subsequent back cover coagulation
Soil property measures reliable guarantee.
Detailed description of the invention
Fig. 1 is the present invention to be paved the elevational schematic view of construction technology using the underwater rubble of airlift suction dredger；
Fig. 2 is the present invention to be paved the plan view of construction technology using the underwater rubble of airlift suction dredger.
Wherein, 1 is rubble filled layer；2 be filler wellhole；3 be airlift suction dredger；4 be conveyance conduit；5 be cloth wellhole；
6 be hose coupling；7 be discharge channel.
Specific embodiment
It is illustrated below by way of specific embodiment is further to summary of the invention of the invention, but should not be construed as the present invention
Range be only limitted to example below, invention thinking according to the present invention and entire contents, can will be each in following instance
Technical characteristic makes combination/replacement/adjustment/modification appropriate etc., this is will be obvious to those skilled in the art that still
Belong to the scope that the present invention protects.
Embodiment 1
In the Yangtze Bridge of Wufeng Mount, north anchorage open caisson uses rubble Paving Techniques of the present invention.Open caisson wellhole cloth
Office is as shown in Fig. 2, the long 100.7m of well foundation, width 72.1m, high 56m, are divided into 48 wellholes, totally 6 rows (1# well~6# well), often
Row 8, will fill under water rubble in all open caisson wellholes.
Beside first roping rubble to first row 1# wellhole, through discharge channel by chute directly to 8 wells of first row 1# well
Rubble 2-3m is filled in hole, is arranged 8 airlift suction dredgers (each Kong Yitai) in 1# wellhole, is then used suction dredge from first row well
Hole pumps toward other five rows wellhole according to the fill order of 6#-5#-4#-3#-2# and fills.
When filling last row wellhole (2#), start to control the 1st row's wellhole rubble absolute altitude, it is ensured that last row's wellhole filling
When to design position, the 1st row's wellhole rubble filling thickness is 0.7~1m (on the basis of -55m), and feed supplement is filled to 1m.Wellhole is broken
Guarantee that flatness is less than 30cm by spreading or shortening pump line multi-point distribution when stone is filled, it is in due course to test absolute altitude situation according to lining rope
Cloth discharge position is adjusted, hose coupling is installed when necessary and carries out multidirectional cloth adjustment, every row's wellhole is synchronous to be carried out, and final absolute altitude passes through
Airlift suction dredger pipeline scale is adjusted, until flatness is met the requirements.The elevation of rubble filling construction is as shown in Figure 1.
Rubble fill order first fills 1# well and the purpose of 6# is that first sealing long side blade foot prevents from gushing sand, combines entirety
Balance.
Claims (4)
- The construction technology 1. a kind of underwater rubble using airlift suction dredger paves, which is characterized in that first pass through chute directly to appoint Open caisson wellhole of anticipating fills rubble, then inhales rubble to other wellholes from any open caisson wellhole using suction dredge and is filled, Observe the rubble absolute altitude of other wellholes, control suction dredge work, until other all described wells in real time according to lining rope scale When hole is filled to design position, the rubble filling thickness for controlling any open caisson wellhole is 0.7~1m, then feed supplement fill to 1m。
- The construction technology 2. the underwater rubble according to claim 1 using airlift suction dredger paves, which is characterized in that from When described any open caisson wellhole suction rubble to other wellholes are filled, pass through spreading or shorten pump line progress multi-point distribution guarantee Flatness is less than 30cm.
- The construction technology 3. the underwater rubble according to claim 1 using airlift suction dredger paves, which is characterized in that from When described any open caisson wellhole suction rubble to other wellholes is filled, absolute altitude situation is tested according to lining rope and adjusts cloth discharge position, Multidirectional cloth adjustment is carried out from airlift suction dredger conveyance conduit installation hose coupling, until flatness is met the requirements.
- The construction technology 4. the underwater rubble according to claim 1 using airlift suction dredger paves, which is characterized in that first lead to It crosses chute and directly fills rubble 2-3m to all open caisson wellholes of the first long side, then use several suction dredges from the first long side The open caisson wellhole that open caisson wellhole inhales rubble to the second long side is filled, and refills remaining wellhole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810810156.4A CN109137954B (en) | 2018-07-23 | 2018-07-23 | Underwater broken stone paving construction process adopting air suction dredger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810810156.4A CN109137954B (en) | 2018-07-23 | 2018-07-23 | Underwater broken stone paving construction process adopting air suction dredger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109137954A true CN109137954A (en) | 2019-01-04 |
| CN109137954B CN109137954B (en) | 2021-01-05 |
Family
ID=64801281
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810810156.4A Active CN109137954B (en) | 2018-07-23 | 2018-07-23 | Underwater broken stone paving construction process adopting air suction dredger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109137954B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106638647A (en) * | 2016-12-31 | 2017-05-10 | 广东水利电力职业技术学院（广东省水利电力技工学校） | Underwater sunk shaft sealing method and sunk shaft |
| CN106906835A (en) * | 2017-03-02 | 2017-06-30 | 中铁大桥局集团有限公司 | A kind of deep water well foundation back cover construction method and bottom concrete verifying attachment |
-
2018
- 2018-07-23 CN CN201810810156.4A patent/CN109137954B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106638647A (en) * | 2016-12-31 | 2017-05-10 | 广东水利电力职业技术学院（广东省水利电力技工学校） | Underwater sunk shaft sealing method and sunk shaft |
| CN106906835A (en) * | 2017-03-02 | 2017-06-30 | 中铁大桥局集团有限公司 | A kind of deep water well foundation back cover construction method and bottom concrete verifying attachment |
Non-Patent Citations (3)
| Title |
|---|
| 李冰等: "超大尺寸沉井不排水下沉及封底水下三维机械声呐应用研究", 《上海铁道科技》 * |
| 汪成龙: "超大型沉井施工期受力分析研究", 《施工技术》 * |
| 胡东高: "超大型水上沉井封底施工技术", 《江苏科技信息》 * |
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| Publication number | Publication date |
|---|---|
| CN109137954B (en) | 2021-01-05 |
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