CN110593337A - Underwater milling groove guiding and positioning device suitable for deepwater embedded foundation - Google Patents
Underwater milling groove guiding and positioning device suitable for deepwater embedded foundation Download PDFInfo
- Publication number
- CN110593337A CN110593337A CN201910970820.6A CN201910970820A CN110593337A CN 110593337 A CN110593337 A CN 110593337A CN 201910970820 A CN201910970820 A CN 201910970820A CN 110593337 A CN110593337 A CN 110593337A
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- China
- Prior art keywords
- steel casing
- ring steel
- inner ring
- outer ring
- positioning device
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- 238000003801 milling Methods 0.000 title claims abstract description 48
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 137
- 239000010959 steel Substances 0.000 claims abstract description 137
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 27
- 239000011435 rock Substances 0.000 claims abstract description 11
- 230000001681 protective effect Effects 0.000 claims description 10
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 15
- 235000017491 Bambusa tulda Nutrition 0.000 description 15
- 241001330002 Bambuseae Species 0.000 description 15
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 15
- 239000011425 bamboo Substances 0.000 description 15
- 238000009412 basement excavation Methods 0.000 description 12
- 238000010276 construction Methods 0.000 description 12
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F5/00—Dredgers or soil-shifting machines for special purposes
- E02F5/006—Dredgers or soil-shifting machines for special purposes adapted for working ground under water not otherwise provided for
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses an underwater milling groove guiding and positioning device suitable for a deepwater embedded foundation, which comprises an outer ring steel protecting cylinder, an inner ring steel protecting cylinder and a working platform, wherein the working platform is supported and fixed on a working ship, the outer ring steel protecting cylinder is fixed on the working platform through a fixing support, the upper end of the inner ring steel protecting cylinder is positioned in the outer ring steel protecting cylinder and is in clearance fit with the outer ring steel protecting cylinder, the lower end of the inner ring steel protecting cylinder extends to a seabed rock surface, and the inner ring steel protecting cylinder is connected with the working ship through a traction rope. The groove head of the double-wheel groove milling machine is accurately positioned underwater through the guiding and positioning device, the double-wheel groove milling machine is prevented from being deviated by external forces such as water flow force, wave force and the like, and the double-wheel groove milling machine operates on a working platform, so that the underwater groove milling machine is constructed on land.
Description
Technical Field
The invention relates to the field of bridge engineering, in particular to an underwater milling groove guiding and positioning device suitable for a deep-water embedded foundation.
Background
At present, a double-wheel slot milling machine is mainly applied to land slot milling construction, underwater slot milling has no project precedent, and underwater foundation slot excavation faces the following problems:
1. in the conventional underwater foundation trench excavation, underwater blasting and slag removal are firstly carried out on the seabed, the seabed is excavated to a bearing layer by using a large machine to form a frustum-shaped rock foundation pit, and the leveling is difficult; the excavation workload is large, and the construction period is often controlled for large-scale deep water foundations.
2. The double-wheel slot milling machine has the advantages of high construction efficiency, good slot forming quality (the verticality of a wall body can be controlled within 3 per thousand), safety, environmental protection, wide application range of stratum and the like. The deep water embedded foundation needs to be operated underwater by a double-wheel slot milling machine, the double-wheel slot milling machine can be constructed only on land at present, and offshore operation has no embodiment at home and abroad.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, provides an underwater groove milling guiding and positioning device suitable for a deep-water embedded foundation, and provides a brand-new foundation groove excavation mode aiming at a series of problems faced by foundation groove excavation of a deep-water embedded foundation.
The invention is realized by the following steps: the invention discloses an underwater milling groove guiding and positioning device suitable for a deepwater embedded foundation, which comprises an outer ring steel protecting cylinder, an inner ring steel protecting cylinder and a working platform, wherein the working platform is supported and fixed on a working ship, the outer ring steel protecting cylinder is fixed on the working platform through a fixing support, the upper end of the inner ring steel protecting cylinder is positioned in the outer ring steel protecting cylinder and is in clearance fit with the outer ring steel protecting cylinder, the lower end of the inner ring steel protecting cylinder extends to a seabed rock surface, and the inner ring steel protecting cylinder is connected with the working ship through a traction rope.
Furthermore, a steel casing limiting sleeve is fixed on the outer side of the inner ring steel casing, one end of the traction rope is connected with the steel casing limiting sleeve, and the other end of the traction rope is connected with the work ship.
Further, the inner ring steel casing comprises a first section of steel casing, a middle section of steel casing and a bottom section of steel casing, and the first section of steel casing, the middle section of steel casing and the bottom section of steel casing are sequentially detachably connected.
The outer ring steel protects a section of thick bamboo and first section of steel and protects a clearance fit, and first section of steel protects a section of thick bamboo top height and does not surpass outer lane steel and protects a section of thick bamboo when guaranteeing low tide level simultaneously, and first section of steel protects a section of thick bamboo and outer ring steel and protects a section of thick bamboo and have 2 times and protect a section of thick bamboo diameter length coincidence during high tide level, guarantees to protect a section of thick bamboo and does not break away from to adapt to rise, the platform altitude variation that the tide fall change arous. The outer ring steel casing is fixed with the platform, so that the steel casing and the platform are always on the same horizontal plane.
Further, the first section of steel casing, the middle section of steel casing and the bottom section of steel casing are connected through bolts.
Furthermore, the working platform is supported on two working ships, the two working ships are arranged in parallel at intervals, and the outer ring steel casing is located between the two working ships.
Furthermore, two sides of the inner ring steel casing are correspondingly connected with two ends of one working ship through traction ropes respectively, and two sides of the inner ring steel casing are correspondingly connected with two ends of the other working ship through traction ropes respectively.
Furthermore, the fixed support is placed on the working platform and fixedly connected with the outer ring steel casing.
Further, the outer ring steel casing and the inner ring steel casing are vertically arranged.
Furthermore, the outer ring steel casing and the inner ring steel casing are cylindrical.
The invention has the beneficial effects that: the underwater groove milling guiding and positioning device for the deepwater embedded foundation has a compact structure and is simple and convenient to operate, a series of problems in deepwater embedded foundation groove excavation can be solved through the underwater groove milling guiding and positioning device, and the advantages of the underwater groove milling guiding and positioning device are mainly embodied in the following aspects:
1. the main components of the guiding and positioning device adopt a circular steel casing, and the double-wheel milling groove head can be adjusted to any direction in the casing and can adapt to a base groove in any direction, such as rectangle, ring, ellipse and the like.
2. In the field of bridge deepwater foundation construction, a brand-new construction method is provided for deepwater foundation construction, 1-2 days are needed for completing 1 slotted hole, multiple tidal rises and falls are needed in the process, the tightness of each traction rope is adjusted in time according to changes of tides and storms in the groove milling process, and real-time positioning of a steel casing can be realized.
3. The guiding and positioning device has the advantages of simple structure, high strength, small deformation, large rigidity and convenient installation.
4. The steel casing in the guiding and positioning device is circular and is suitable for wave flow force and strong water flow force.
5. The seabed excavation workload is small, the construction material consumption is small, and the construction cost is low. The annular foundation trench is excavated in the foundation rock only by adopting a double-wheel slot milling machine, the excavation surface of the foundation trench is smooth, the slope excavation is not needed, the rock foundation pit does not need to be excavated in a large area, the seabed excavation workload is small, and the construction cost is low.
6. The underwater construction process is less, the construction process is simple, and the construction risk is low.
Drawings
FIG. 1 is a diagram of a deep water embedded infrastructure (taking a circle as an example);
FIG. 2 is a sectional view of the base groove;
FIG. 3 is a plan view of the base groove;
FIG. 4 is a cross-sectional view of the deep water embedded foundation at the foundation trench;
FIG. 5 is a drawing of an elevation of a deep water embedded foundation milling groove guiding and positioning device;
FIG. 6 is a plan view of a deep water embedded foundation milling groove guiding and positioning device;
FIG. 7 is a plan view of a two-wheel slot milling head and a steel casing.
In the attached drawing, 1 is a working ship, 2 is a working platform, 3 is a fixed support, 4 is an outer ring steel casing, 5 is an inner ring steel casing, 51 is a first section steel casing, 52 is a middle section steel casing, 53 is a bottom section steel casing, 54 is a bolt, 6 is a traction rope, 7 is a steel casing limit sleeve, 8 is a slot head of a slot milling machine, 9 is a foundation slot, 10 is a seabed rock surface, and 11 is an embedded foundation.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 to 7, the embodiment provides an underwater milling groove guiding and positioning device suitable for a deep water embedded foundation, which includes an outer ring steel casing 4, an inner ring steel casing 5 and a working platform 2, wherein the working platform 2 is supported and fixed on a working ship 1, the outer ring steel casing 4 is fixed on the working platform 2 through a fixing support 3, the upper end of the inner ring steel casing 5 is located in the outer ring steel casing 4 and is in clearance fit with the outer ring steel casing 4, the lower end of the inner ring steel casing 5 extends to a sea bed rock surface 10, and the inner ring steel casing 5 is connected with the working ship 1 through a traction rope 6.
Furthermore, a steel casing limiting sleeve 7 is fixed on the outer side of the inner ring steel casing 5, one end of the traction rope 6 is connected with the steel casing limiting sleeve 7, and the other end of the traction rope 6 is connected with the work ship 1. The length of the traction rope 6 is intelligently adjusted according to the tide level, so that the steel protective cylinder is ensured to be fixed in the water flow direction, and the bottom of the steel protective cylinder is prevented from being separated from the surface of the sea bed due to rising of the water level.
Further, the inner ring steel casing 5 comprises a first section steel casing 51, a middle section steel casing 52 and a bottom section steel casing 53, and the first section steel casing, the middle section steel casing and the bottom section steel casing are sequentially detachably connected.
Further, the first section steel casing, the middle section steel casing and the bottom section steel casing are connected through flanges and bolts 54.
Further, the working platform 2 is supported on two working ships 1, the two working ships 1 are arranged in parallel at intervals, and the outer ring steel casing 4 is located between the two working ships 1.
Furthermore, two sides of the inner ring steel casing 5 are correspondingly connected with two ends of one working ship 1 through traction ropes 6 respectively, and two sides of the inner ring steel casing 5 are correspondingly connected with two ends of the other working ship 1 through traction ropes 6 respectively.
Further, the fixed support 3 is placed on the working platform 2 and fixedly connected with the outer ring steel casing 4.
Further, an outer ring steel casing 4 and an inner ring steel casing 5 are vertically arranged.
Further, the outer ring steel casing 4 and the inner ring steel casing 5 are cylindrical. The slot head 8 of the slot milling machine is positioned in the steel casing. The double-wheel slot milling machine is supported on the working platform 2.
The circular steel casing has strong ability of adapting to water flow and wave flow, and the groove head 8 of the groove milling machine can continuously change directions in the steel casing so as to adapt to different groove milling directions.
The method is mainly applied to the excavation of the foundation trench 9 in the deep water bare rock area, and is mainly applied to the excavation of the underwater foundation trench 9 of the embedded foundation 11 in the shallow covering layer (bare rock) of rivers, lakes, seas and the like and the area with better lithology of the bearing stratum.
The main implementation method of each part is as follows:
the working platform 2 is connected with 2 working ships 1, so that the stability of the platform is ensured. The fixed support 3 is placed on the working platform 2 and is fixedly connected with the outer ring steel casing 4, so that the outer ring steel casing 4 is fixed in the horizontal direction and vertically floats up and down along with the working ship 1 under the action of tide and wind waves. The lower end of the inner ring steel casing 5 is directly placed on the seabed rock face 10. The first section of steel casing, the middle section of steel casing and the bottom section of steel casing are connected through bolts, and the length of the middle section of steel casing can be adjusted to adapt to different water depths and different terrains; the outer ring steel protects a section of thick bamboo 4 and first section of steel and protects a section of thick bamboo spatial separation, and first section of steel protects a section of thick bamboo top height and does not surpass outer ring steel and protects a section of thick bamboo 4 when guaranteeing low tide level simultaneously, and first section of steel protects a section of thick bamboo and outer ring steel and protects a section of thick bamboo 4 during high tide level and have 2 times and protect a section of thick bamboo diameter length coincidence, guarantees to protect a section of thick bamboo and does not break away from to adapt to the platform altitude variation that rises, the. The outer ring steel casing 4 is fixed with the platform, so that the steel casing and the platform are always on the same horizontal plane. The steel protects a spacing sleeve pipe 7 and is fixed in the steel and protects a outside. One end of a hauling cable 6 is connected with a steel casing limiting sleeve 7, and the other end is connected with the working ship 1. 1-2 days are needed for completing 1 slotted hole, a plurality of times of tide rise and tide fall are needed in the process, the tightness of each traction rope 6 is adjusted in time according to the changes of tide and wind wave in the slot milling process, and the real-time positioning of the steel casing can be realized.
After the components are assembled, underwater groove milling work of the double-wheel groove milling machine can be carried out, and the operation method is the same as that of conventional double-wheel milling construction. The groove head 8 of the double-wheel groove milling machine is accurately positioned underwater through the guiding and positioning device, the double-wheel groove milling machine is prevented from being deviated by external forces such as water flow force, wave force and the like, and the double-wheel groove milling machine operates on the working platform 2, so that the underwater groove milling is constructed on land.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (9)
1. The utility model provides an underwater milling flutes guiding orientation device suitable for embedded basis of deep water which characterized in that: the device comprises an outer ring steel protective cylinder, an inner ring steel protective cylinder and a working platform, wherein the working platform is supported and fixed on a working ship, the outer ring steel protective cylinder is fixed on the working platform through a fixing support, the upper end of the inner ring steel protective cylinder is located in the outer ring steel protective cylinder and is in clearance fit with the outer ring steel protective cylinder, the lower end of the inner ring steel protective cylinder extends to a seabed rock surface, and the inner ring steel protective cylinder is connected with the working ship through a traction rope.
2. The underwater groove milling guiding and positioning device suitable for the deep-water embedded foundation of claim 1, wherein: and a steel casing limiting sleeve is fixed on the outer side of the inner ring steel casing, one end of the traction rope is connected with the steel casing limiting sleeve, and the other end of the traction rope is connected with the working ship.
3. The underwater groove milling guiding and positioning device suitable for the deep-water embedded foundation of claim 1, wherein: the inner ring steel casing comprises a first section of steel casing, a middle section of steel casing and a bottom section of steel casing, and the first section of steel casing, the middle section of steel casing and the bottom section of steel casing are sequentially detachably connected.
4. The underwater groove milling guiding and positioning device suitable for the deep-water embedded foundation as claimed in claim 3, wherein: the first section of steel casing, the middle section of steel casing and the bottom section of steel casing are connected through bolts.
5. The underwater groove milling guiding and positioning device suitable for the deep-water embedded foundation of claim 1, wherein: the working platform is supported on the two working ships, the two working ships are arranged in parallel at intervals, and the outer ring steel casing is located between the two working ships.
6. The underwater groove milling guiding and positioning device suitable for the deep-water embedded foundation as claimed in claim 5, wherein: the two sides of the inner ring steel casing are correspondingly connected with the two ends of one working ship through the traction ropes respectively, and the two sides of the inner ring steel casing are correspondingly connected with the two ends of the other working ship through the traction ropes respectively.
7. The underwater groove milling guiding and positioning device suitable for the deep-water embedded foundation of claim 1, wherein: the fixed support is placed on the working platform and fixedly connected with the outer ring steel casing.
8. The underwater groove milling guiding and positioning device suitable for the deep-water embedded foundation of claim 1, wherein: the outer ring steel casing and the inner ring steel casing are vertically arranged.
9. The underwater groove milling guiding and positioning device suitable for the deep-water embedded foundation of claim 1, wherein: the outer ring steel casing and the inner ring steel casing are cylindrical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910970820.6A CN110593337A (en) | 2019-10-14 | 2019-10-14 | Underwater milling groove guiding and positioning device suitable for deepwater embedded foundation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910970820.6A CN110593337A (en) | 2019-10-14 | 2019-10-14 | Underwater milling groove guiding and positioning device suitable for deepwater embedded foundation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110593337A true CN110593337A (en) | 2019-12-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910970820.6A Pending CN110593337A (en) | 2019-10-14 | 2019-10-14 | Underwater milling groove guiding and positioning device suitable for deepwater embedded foundation |
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