CN114059437A - Light long-distance sea-crossing intelligent permanent railway and highway floating bridge with low manufacturing cost and short construction period - Google Patents
Light long-distance sea-crossing intelligent permanent railway and highway floating bridge with low manufacturing cost and short construction period Download PDFInfo
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- CN114059437A CN114059437A CN202110640282.1A CN202110640282A CN114059437A CN 114059437 A CN114059437 A CN 114059437A CN 202110640282 A CN202110640282 A CN 202110640282A CN 114059437 A CN114059437 A CN 114059437A
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D15/00—Movable or portable bridges; Floating bridges
- E01D15/14—Floating bridges, e.g. pontoon bridges
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
- B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/02—Piers; Abutments ; Protecting same against drifting ice
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
- E02B17/04—Equipment specially adapted for raising, lowering, or immobilising the working platform relative to the supporting construction
- E02B17/08—Equipment specially adapted for raising, lowering, or immobilising the working platform relative to the supporting construction for raising or lowering
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/30—Metal
Abstract
The light long-distance sea-crossing intelligent permanent railway and highway floating bridge with low manufacturing cost and short construction period fundamentally changes the design idea of building a sea-crossing bridge. The method solves the biggest problem, does not need to build piers on the strait seabed, greatly reduces the construction difficulty and the engineering quantity of the cross-sea bridge, and has little influence on the strait ecological environment. The technical points are as follows: 1. the floating islands are built by using seawater buoyancy, each floating island is firmly grabbed by a seabed rooting stainless steel wire rope and is synthesized by cheap materials, and bridges are erected on the floating islands. 2. Drilling a special well hole at the bottom of the strait seabed, and embedding stainless steel wire rope slurry in a sleeve for sealing. Under the condition that the submarine geology and the local typhoon intensity allow, the stainless steel wire rope can also be wound and tied on a reinforced concrete block which is sunk into the seabed, so as to replace a drilling hole. 3. 12 strands of rooting stainless steel wire ropes are uniformly distributed on the left side and the right side of the floating island, and are used for firmly grabbing the floating island in a tightening manner, and the absolute horizontal height of the floating island is unchanged. At the lowest tide level, 12 strands of rooted stainless steel wire ropes are ensured to have proper tension.
Description
One, the technical field
Sea-crossing bridge design
Second, background Art
The most important difficulty in constructing a cross-sea bridge is to construct a pier, and the pile foundation needs to be drilled on the seabed in the traditional design.
The 'floating open caisson method' is usually adopted, the prefabricated pile is driven to a specific position by a professional pile driving boat, then reinforced concrete is filled into the pile after water is drained, so that the pile foundation is fixed in water, and the whole bearing and corrosion prevention consideration is required after the pile foundation is driven.
The open caisson construction method of the invention is characterized in that firstly, a cylindrical barrel is sunk, then concrete is filled into the barrel, when the concrete in the barrel reaches a certain weight, the cylindrical barrel naturally sinks, and then the cylindrical barrel is stabilized on the seabed.
The position for constructing the cross-sea bridge is usually that the sea water depth reaches 30-100 meters, the seabed geological structure is complex, the construction difficulty and the engineering quantity for constructing the cross-sea bridge are large, the construction period is long, the investment is huge, and the influence on the marine ecological environment is also considered.
Third, the invention
The light long-distance sea-crossing intelligent permanent railway and highway floating bridge with low manufacturing cost and short construction period fundamentally changes the design idea of building a sea-crossing bridge.
The method solves the biggest problem, does not need to build piers on the strait seabed, greatly reduces the construction difficulty and the engineering quantity of the cross-sea bridge, shortens the construction period, reduces the investment, has little influence on the strait ecological environment, and is green and environment-friendly.
The technical points are as follows:
1. the floating islands are built by using seawater buoyancy, each floating island is firmly grabbed by a seabed rooting stainless steel wire rope and is synthesized by cheap materials, and bridges are erected on the floating islands.
2. Drilling a special well hole at the bottom of the strait seabed, and embedding stainless steel wire rope slurry in a sleeve for sealing. Under the condition that the seabed geology and the local typhoon strength allow, the stainless steel wire rope can also be wound and tied on a reinforced concrete block which is sunk into the seabed, so as to replace a drilling hole.
3. 12 strands of rooting stainless steel wire ropes are uniformly distributed on the left side and the right side of the floating island, and are used for firmly grabbing the floating island in a tightening manner, and the absolute horizontal height of the floating island is unchanged. At the lowest tide level, 12 strands of rooted stainless steel wire ropes are ensured to have proper tension.
Description of the drawings figure 1 is a schematic view of a bridge
1. The number of the submarine oil well casing pipes is the same as that of the submarine rooting stainless steel wire ropes, and only 1 submarine oil well casing pipe is drawn in the figure.
2. On each floating island, six strands of seabed rooting stainless steel wire ropes bound to and pulling the floating island are respectively arranged at the left side and the right side, and only 6 strands are drawn at one side of the drawing.
3. 4 strands of 8 submarine rooting stainless steel wire ropes are respectively arranged on two sides below the steel truss girder bridge at the upper end of the floating island, the same principle as that of the submarine rooting stainless steel wire ropes bound and pulled on the floating island is achieved, and the drawing is omitted.
4.N floating islands are designed and distributed uniformly along the width direction of the strait, and only 3 floating islands are drawn in the figure.
5. This figure only shows a schematic view of the bridge.
Fifth, detailed description of the invention
The floating islands are built by using seawater buoyancy, each floating island is firmly grabbed by a seabed rooting stainless steel wire rope, the floating islands can be synthesized by cheap corrosion-resistant materials, and bridges are erected on the floating islands. Drawings
1. Seabed rooting stainless steel wire rope bound to and pulled from floating island
(1) N floating piers, namely floating islands, are uniformly pre-designed and distributed along the width direction of the strait.
(2) And by utilizing a movable self-elevating offshore oil drilling platform with relatively low cost, respectively drilling 6 special well holes DN140 with uniform and symmetrical distances on the seabed below the left side and the right side of each floating island (the well hole depth is determined according to the sea water depth and the seabed silt thickness, such as about 100 meters deep in the Johnson state channel), and the well hole distance is determined according to the size of the floating island. The cost of the drilling hole accounts for about 30-50% of the total construction cost of the bridge.
(3) And the vertical depth of each vertical well hole below the seabed is respectively 200 meters, 220 meters, 240 meters, 230 meters, 210 meters and 190 meters (the specific depth is according to the thickness of silt and the thickness of rock and the required generated tension, the depth is different in order to prevent horizontal wells from mutually intersecting and colliding) + 50 meters of horizontal well holes in the depth of rock (the specific depth is according to the properties of rock and the required generated tension), and the outer wall of an oil casing DN140 (general purpose 5.5 inches) in the well hole is cemented by mud (the conventional method).
(4) The built-in stainless steel wire rope of oil casing is closely knit with mud shut-in well, and one strand is reserved promptly for the bifilar for every strand of stainless steel wire rope, and the stainless steel wire rope designs the monitoring return circuit that opens circuit simultaneously, and stainless steel wire rope is used for tying up and draws the chinampa, considers adopting 316 stainless steel wire rope, also can adopt the rope of other corrosion-resistant and firm materials.
(5) And the stainless steel wire ropes bound and pulled from the seabed bottom to the sea surface and to the floating island are well subjected to corrosion prevention and surface smoothing treatment, seawater corrosion and marine organism adhesion are reduced, and warning marks are made to prevent the collision between ships and marine organisms.
(6) And the design of the tension of the stainless steel wire rope considers that the floating island can resist 18-grade typhoon.
(7) And under the conditions of seabed geological conditions and local typhoon strength allowance, the seabed rooting stainless steel wire rope of the floating pier is tied up and pulled, and the stainless steel wire rope can also be wound and tied on a reinforced concrete block sunk into the seabed, wherein the total volume of the reinforced concrete block is 1.5 times larger than that of the floating island, and the reinforced concrete block replaces a drilling hole in the seabed and mainly overcomes the buoyancy of the floating island, the lifting force of typhoon and the buoyancy of the reinforced concrete block. Considerations for the total weight of the reinforced concrete mass include the buoyancy generated by the volume of the floating island and the gust response factor of the bridge. The density of the reinforced concrete is 2500kg/m3. The gust response coefficient takes a larger value of 2.0. The seabed reinforced concrete block that every chinampa corresponds can be 12, the handling of being convenient for, 12 strand stainless steel wire ropes correspond 12 reinforced concrete blocks promptly, and every strand stainless steel wire rope winding is tied and is tied up a monoblock reinforced concrete block, and stainless steel wire rope can not tie up the part of tying at a reinforced concrete block, because reinforced concrete's stretching resistance only one tenth of resistance to pressure. The shape of the reinforced concrete block is required, the middle part is provided with a rope groove for winding and tying the stainless steel wire rope, and the bottom part is fully connected with the seabed as much as possibleThe contact is stable, the periphery of the upper part is smooth as much as possible, and the shape of the steamed bun is like an oval steamed bun with a groove in the middle. And (5) performing anticorrosive treatment on the outer surface of the reinforced concrete block. The stainless steel wire rope part wound with the binding reinforced concrete block can be made into a stainless steel belt which is prefabricated with the reinforced concrete block into a whole, and the outer surface of the stainless steel belt is properly wrapped with a layer of concrete to enhance the corrosion resistance. The reinforced concrete block scheme increases material consumption, is not environment-friendly, but is simpler to construct. The service life of the cement block is 50 years, and the cement block can be replaced one by one at proper time.
2. Floating island
(1) And 12 strands of rooting stainless steel wire ropes extending out of the seabed of each floating island are uniformly distributed on the left side and the right side of the floating island, and are tightened to firmly grasp the floating island, so that the floating island is aligned to be relatively and stably horizontal on the sea surface, and the absolute horizontal height of the floating island is unchanged. The floating island is not freely floating on the water surface, and when the water level is the lowest, the proper tension of 12 strands of rooting stainless steel wire ropes is ensured, for example, the floating height of the floating island is 11 meters when the stainless steel wire ropes are not pulled, and the floating height of the floating island is 10 meters when the stainless steel wire ropes are pulled (specifically, calculation is needed).
(2) The floating island is formed by hollow synthesis of waste tire powder (or a durable hollow polyolefin plastic floating body, or a closed steel floating cabin outer chrome plating or a closed aluminum bronze floating cabin), and the length, the width and the height of the floating island are designed according to the basic principle that the buoyancy of N floating piers can bear the weight of a bridge and the load of a bridge deck and ensure the stability of the floating island (for example, the length is 30m multiplied by 20m multiplied by the height, and the height higher than the sea surface is determined according to the height of the bridge and the resistance to typhoon). The floating island is required to resist seawater corrosion, and is required to be periodically checked for corrosion prevention and surface smoothing treatment, so that seawater corrosion and marine organism adhesion are reduced, and warning marks are made to prevent collision between ships and marine organisms.
The N floating islands need to be aligned and corrected in a unified mode, namely, each floating island needs to be aligned horizontally, and the horizontal heights of the N floating islands are all the same in a unified mode.
For example, the johnson strait sea crossing bridge (straits width is about 30km), the floating island is designed to support double-track railways and double-track 6-way highways, and 300 floating islands are expected (particularly calculation).
(3) The design of the floating island requires to ensure that the floating island is level and stable, namely, the stress is uniform all around, the length and the width are designed, the convenience of bridging and the impact of reducing the wave flow force of sea waves are simultaneously considered, 12 uniform stainless steel wire rope holes are reserved during the synthesis of the floating island, the design of the stainless steel wire rope holes considers the normal operation inspection and maintenance, and each strand of stainless steel wire rope is designed with an electronic monitoring circuit breaking loop.
(4) And when the floating island is at the highest tide level, the lifting force of the floating island is the largest to the pull force of the stainless steel wire rope at the sea bottom, so that the tide level, the surge and the height of the floating island exposed out of the water surface are closely monitored. The flood tide and fall tide data are real-time measurement data of tide level meters (5 in number) arranged in the sea area of the bridge. The modern tide level measuring instrument has a tide level instrument, such as radar measurement, satellite measurement and the like and corresponding calculation, and the original tide level instrument has manual measurement. The tide level meter is a mature product in the market (not in the scope of the invention) and can be purchased in the market. And (3) taking three from five real-time measurement data of 5 tide level meters (arranged in the sea area of the bridge), automatically removing the maximum value and the minimum value by a computer, and automatically averaging the three values. Meanwhile, the tide forecast data table published by the local maritime bureau, namely the tide level data of each day and each hour, is referred.
(5) And 1 strand or 2 strands of stainless steel wire ropes are disconnected in the single floating island, so that the horizontal balance of the single floating island is not influenced, and the single floating island can be repaired at any time. And 3 strands of stainless steel wire ropes or more than 3 strands of stainless steel wire ropes are disconnected in the single floating island, and an alarm is sent to stop passing and overhaul the bridge. Any 8 strands of the 12 stainless steel wire ropes have the tensile force to bear the buoyancy of a single floating island completely submerged in water, and for example, the floating island has the volume of 18000m, namely the length of 30m, the width of 20m and the height of 30m3And the buoyancy is 18000N, the maximum static tension of each stainless steel wire rope is required to be more than 2500N. Each stainless steel wire rope is designed with an electronic monitoring open circuit loop.
(6) In order to reduce the situation of accidental disconnection of the stainless steel wire rope under the sea, a section of stainless steel wire rope which is easy to break is specially designed on the upper side of the floating island for replacement. The section from the floating island to the seabed to the rock is a section, and the two sections of stainless steel wire ropes are connected by a special buckle, wherein the section from the floating island to the seabed to the rock is designed with measures for preventing one end of the floating island from falling into the sea, such as a clamping groove.
(7) The distance between the floating islands is 80-100 meters, the specific distance is determined according to the distance between the bridge piers and the width of the ship to pass through, the distance between the floating islands close to the coast is slightly smaller, and the distance between the floating islands far away from the coast is slightly larger (the ship to pass through).
(8) And the height of the bridge from the land to the middle of the strait is gradually increased by 10-35 meters above the sea surface, for example, 60 ten thousand tons of oil tankers need to pass under a four-hole channel bridge of a five-floating island with the largest span in the middle of the strait.
In order to reduce the influence of typhoon on the floating island, the floating island is made of a steel frame at a height which is 10 meters higher than the sea surface (higher than the highest tide level and surge).
(9) Brushing bright warning color around each floating island, arranging navigation mark lamps, designing intelligent electronic video identification monitoring and anti-collision automatic reminding loud speakers and an anti-collision alarm system.
(10) In order to resist strong typhoon and ensure the stability of the high-altitude middle bridge, 4 strands of 8 submarine rooting stainless steel wire ropes are respectively arranged on two sides below the steel truss girder bridge at the upper end of the floating island, the vertical depths of the rooting stainless steel wire ropes below the seabed are 250m, 270m, 280m and 260m deep vertical rock well holes + 50m horizontal well holes in the depth of the rock, and an oil casing DN140 is also arranged. The 8 strands of stainless steel wire ropes can also be respectively wound and tied on 8 reinforced concrete blocks sunk into the seabed, and the size of the reinforced concrete blocks is consistent with that of the reinforced concrete blocks, so that the reinforced concrete blocks can be used for replacing drilling holes in the seabed.
3. Support bottom plate fixed on floating island
(1) The supporting bottom plate is permanently fixed on the floating island, namely a base of the bridge.
(2) And the steel structure bridge column is fixed on the supporting base plate.
(3) The steel truss girder is bridged on the bridge column (see 4. bridge in detail).
4. Bridge
(1) The steel truss bridge (or single-layer bridge or double-layer railway and highway dual-purpose bridge) with certain distortion toughness is erected, and the bridge columns under the steel truss bridge are of steel structures so as to reduce the influence of wind power. The whole bridge is designed to have a slightly S-shaped curve, so that the impact of the wave flow force of the sea waves on the bridge is reduced.
Because the whole bridge is a steel truss bridge, the weight is distributed on the N floating islands, the vehicles on the bridge are unevenly distributed, and the gravity borne by each floating island is different, so that the gravity can be redistributed at any time. The buoyancy of each floating island, the borne bridge gravity and the pulling force of the seabed stainless steel wire rope can keep mechanical balance at any time, namely the buoyancy is the borne bridge gravity and the pulling force of the seabed stainless steel wire rope (which is very critical). When vehicles on the bridge are too many, the gravity of the bridge is large, and the pulling force of the stainless steel wire rope is correspondingly reduced. The buoyancy of each floating island is hundreds of times greater than the weight of each vehicle. During construction, all the floating islands are at a horizontal height, the horizontal height of the whole bridge is basically kept unchanged, and the floating islands are within the bearing range of the steel truss bridge when errors occur slightly.
(2) The lower part of the steel truss girder bridge is designed to be half-moon-shaped so as to reduce the lifting force of wind.
The railway bridge can be designed as a steel structure.
The highway bridge can be designed to be combined with concrete by a steel structure, and asphalt is laid on the road surface.
(3) And the bridge connection works, and the arrangement is carried out in the season with less wind and wave in winter as much as possible so as to reduce the installation error.
Before the bridge is connected, the N floating islands need to be uniformly aligned and aligned again.
After the bridge connection is finished, the N floating islands need to be uniformly aligned and aligned again.
(4) And the bridge design monitoring system monitors the up-down floating and the left-right floating of the bridge.
(5) The bridge can be used for both highway and railway, and can be a railway bridge or a highway bridge.
The predicted speed per hour of the railway and the highway can reach 80-100 km/h.
(6) The steel truss bridge, the steel structure bridge column and the supporting bottom plate are strictly subjected to anti-corrosion treatment to prevent marine salt spray corrosion. And periodically inspected and preserved.
(7) And under the bridge section without the ship, pedestrian passages with large distortion toughness can be designed on the left side and the right side above the floating island, and are used for pedestrian walking, bridge maintenance personnel inspection and small-sized maintenance vehicle passing, and the height of the pedestrian passages is 10 meters higher than the sea surface.
5. Land trestle at two ends of bridgehead
(1) The land trestle bridge connected with the two ends of the bridge is about 50 meters long (the specific length needs to be designed), and the end of the trestle bridge butted with the bridge can move slightly and is synchronous with the up-down left-right micro motion of the bridge.
(2) The trestle is located on land and can be of a steel structure, a concrete structure or a reinforced concrete structure.
(3) And the bridge head of the bridge is provided with an automatic weighing monitoring alarm, and the overweight vehicle is strictly controlled.
6. Design safety and reliability guarantee
(1) Bridge firmness and life need be checked through specific design, safety evaluation can be implemented only through the specific design, main risks are tide, sea wave flow force and typhoon, and the bridge life is designed according to 100 years.
(2) The design is designed according to the resistance to 18-level typhoon.
Traffic safety no-pass conditions: sea wave surge above 5 meters, and strong typhoon above 9 levels.
(3) And the external power supply of the bridge is required to be a double power supply.
An uninterrupted UPS (uninterrupted Power supply) is designed at the bridgehead of two ends of the bridge (mainly used for supplying power for a monitoring instrument).
7. Consider a thousand years old
For thousands of years, the positions of newly built bridges alternately every 100 years need to be designed and reserved beside the bridges, and the alternate connection with land roads is designed, and the positions of the land roads are not changed according to thousands of years.
8. Core technology
(1) The floating islands are constructed by utilizing seawater buoyancy, each floating island is firmly grabbed by the seabed rooting stainless steel wire rope, the floating islands can be synthesized by cheap corrosion-resistant materials, bridges are erected on the floating islands, piers do not need to be constructed on the sea gorge seabed, the construction difficulty and the engineering quantity of constructing the sea-crossing bridge are greatly reduced, the construction period is shortened, the investment is reduced, the influence on the ecological environment of the sea gorge is small, and the method is green and environment-friendly.
(2) The seabed rooting stainless steel wire rope for the bound-pulling floating pier is characterized in that a movable self-elevating offshore oil drilling platform with relatively low cost is used for drilling a special well hole at the bottom of a sea isthmus seabed, each hole comprises a vertical rock well hole and a horizontal well hole, the stainless steel wire rope is embedded in a sleeve and is sealed by slurry, and the well hole is about 300 meters in depth and is much lower than an oil well with the depth of thousands of meters. Under the conditions of seabed geological conditions and allowable intensity of local typhoon, the seabed rooting stainless steel wire rope of the floating pier is tied up and pulled, and the stainless steel wire rope can also be wound and tied on a reinforced concrete block sunk into the seabed, and the total volume of the reinforced concrete block is 1.5 times larger than that of the floating island, so that a drilling hole in the seabed is replaced.
(3) And 12 strands of rooting stainless steel wire ropes extending out of the seabed of each floating island are uniformly distributed on the left side and the right side of the floating island, and are tightened to firmly grasp the floating island, so that the floating island is aligned to be relatively and stably horizontal on the sea surface, and the absolute horizontal height of the floating island is unchanged. The floating island is not floated on the water surface, and when the water level is the lowest, the proper tension of 12 strands of rooting stainless steel wire ropes is ensured, for example, the floating height of the floating island is 11 meters when the stainless steel wire ropes are not pulled, and the floating height of the floating island is 10 meters when the stainless steel wire ropes are pulled.
(4) And N floating islands need to be aligned and corrected in a unified mode, namely, each floating island is aligned horizontally, and the horizontal heights of the N floating islands are all uniform and the same.
(5) The supporting bottom plate is permanently fixed on the floating island, namely a base of the bridge. The steel structure bridge column is fixed on the supporting bottom plate, and the steel truss bridge is arranged on the bridge column.
(6) The lower part of the steel truss girder bridge is designed to be half-moon-shaped so as to reduce the lifting force of wind. The bridge is a steel truss bridge (or a single-layer bridge or a double-layer railway and highway dual-purpose bridge) with certain distortion toughness, and bridge columns under the steel truss bridge are of steel structures so as to reduce wind influence. The whole bridge is designed to have a slightly S-shaped curve, so that the impact of the wave flow force of the sea waves on the bridge is reduced.
(7) In order to resist strong typhoon and ensure the stability of the high-altitude bridge, 4 strands of 8 submarine rooting stainless steel wire ropes are respectively arranged on two sides below the steel truss girder bridge at the upper end of the floating island, the vertical depths of the rooting stainless steel wire ropes below the seabed are 250 meters, 270 meters, 280 meters and 260 meters respectively, the vertical well hole is a vertical well with the depth of 50 meters in the rock, and the petroleum casing DN140 is formed. The 8 strands of stainless steel wire ropes can also be respectively wound and tied on 8 reinforced concrete blocks sunk into the seabed, and the size of the reinforced concrete blocks is consistent with that of the reinforced concrete blocks, so that the reinforced concrete blocks can be used for replacing drilling holes in the seabed.
(8) The land trestle end heads at the two ends of the bridge head can move slightly and are synchronous with the up-down, left-right micro motion of the bridge. The trestle is located on land and can be of a steel structure, a concrete structure or a reinforced concrete structure.
(9) The technical scheme is also suitable for constructing deep water wharfs at ports, constructing floating foundations of deep sea floating wind turbine units on the sea, and offshore oil well production platforms, and is suitable for constructing bridges on large rivers without breaking all the year round.
9. Advantages of the invention
(1) The construction cost is low, and the construction difficulty and the engineering quantity of the cross-sea bridge are greatly reduced.
(2) And the construction period is short: the construction of the sea-crossing bridge is expected to be about 2-3 years.
(3) The method can be used for industrial modularized flow line production, such as floating islands, supporting bottom plates, steel structure bridge columns, steel truss bridges and the like.
(4) Intelligent monitoring, safety and controllability.
(5) The influence on the ecological environment of the strait is small, and the strait is green and environment-friendly.
(6) And is beneficial to accelerating the construction of the ocean strong country.
Claims (9)
1. The floating islands are built by utilizing seawater buoyancy, each floating island is firmly grabbed by a seabed rooting stainless steel wire rope, the floating islands can be synthesized by cheap corrosion-resistant materials, bridges are erected on the floating islands, piers do not need to be built on the sea floor of the strait, the construction difficulty and the engineering quantity of the cross-sea bridge are greatly reduced, the construction period is shortened, the investment is reduced, the influence on the ecological environment of the strait is small, and the method is green and environment-friendly.
2. A submarine rooting stainless steel wire rope tied with a floating pier is used for drilling a special well hole on the bottom of a sea channel seabed by using a movable self-elevating offshore oil drilling platform with relatively low cost, each well hole comprises a vertical rock well hole and a horizontal well hole, the stainless steel wire rope is embedded in a sleeve and is sealed by slurry, and the cost of the well hole with the depth of about 300 meters is much lower than that of an oil well with the depth of thousands of meters. Under the conditions of seabed geological conditions and allowable intensity of local typhoon, the seabed rooting stainless steel wire rope of the floating pier is tied up and pulled, and the stainless steel wire rope can also be wound and tied on a reinforced concrete block sunk into the seabed, and the total volume of the reinforced concrete block is 1.5 times larger than that of the floating island, so that a drilling hole in the seabed is replaced.
3. 12 strands of rooting stainless steel wire ropes extending out of the sea bottom of each floating island are uniformly distributed on the left side and the right side of the floating island, and are tightened to firmly grasp the floating island, so that the floating island is aligned to be relatively and stably horizontal on the sea surface, and the absolute horizontal height of the floating island is unchanged. The floating island is not floated on the water surface, and when the water level is the lowest, the proper tension of 12 strands of rooting stainless steel wire ropes is ensured, for example, the floating height of the floating island is 11 meters when the stainless steel wire ropes are not pulled, and the floating height of the floating island is 10 meters when the stainless steel wire ropes are pulled.
And 4, uniformly aligning and correcting the N floating islands, namely horizontally aligning each floating island, wherein the horizontal heights of the N floating islands are all uniform and the same.
5. The supporting bottom plate is permanently fixed on the floating island, namely the base of the bridge. The steel structure bridge column is fixed on the supporting bottom plate, and the steel truss bridge is arranged on the bridge column.
6. The lower part of the steel truss bridge is designed to be half-moon-shaped so as to reduce the lifting force of wind. The bridge is a steel truss bridge (or a single-layer bridge or a double-layer railway and highway dual-purpose bridge) with certain distortion toughness, and bridge columns under the steel truss bridge are of steel structures so as to reduce wind influence. The whole bridge is designed to have a slightly S-shaped curve, so that the impact of the wave flow force of the sea waves on the bridge is reduced.
7. In order to resist strong typhoon and ensure the stability of the high-altitude middle bridge, 4 strands of 8 submarine rooting stainless steel wire ropes are respectively arranged on two sides below the steel truss girder bridge at the upper end of the floating island, the vertical depths of the rooting stainless steel wire ropes below the seabed are 250 meters, 270 meters, 280 meters and 260 meters deep vertical rock well holes + 50 meters horizontal well holes in the rock depth, and the petroleum casing DN140 is also adopted. The 8 strands of stainless steel wire ropes can also be respectively wound and tied on 8 reinforced concrete blocks sunk into the seabed, and the size of the reinforced concrete blocks is consistent with that of the reinforced concrete blocks, so that the reinforced concrete blocks can be used for replacing drilling holes in the seabed.
8. The land trestle ends at the two ends of the bridge head can move slightly and are synchronous with the up-down, left-right micro motion of the bridge. The trestle is located on land and can be of a steel structure, a concrete structure or a reinforced concrete structure.
9. The technical scheme is also suitable for constructing deep water wharfs at ports, constructing floating foundations of deep sea floating wind turbine units and offshore oil well production platforms, and constructing bridges on large rivers without cutting off all the year round.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2021/000200 WO2022256948A1 (en) | 2020-07-31 | 2021-09-27 | Lightweight long-distance cross-sea intelligent permanent railway/highway floating bridge having low construction cost and short construction period |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010764744.6A CN111827083A (en) | 2020-07-31 | 2020-07-31 | Light long-distance sea-crossing intelligent permanent railway and highway floating bridge with low manufacturing cost and short construction period |
| CN2020107647446 | 2020-07-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114059437A true CN114059437A (en) | 2022-02-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010764744.6A Pending CN111827083A (en) | 2020-07-31 | 2020-07-31 | Light long-distance sea-crossing intelligent permanent railway and highway floating bridge with low manufacturing cost and short construction period |
| CN202110640282.1A Pending CN114059437A (en) | 2020-07-31 | 2021-06-08 | Light long-distance sea-crossing intelligent permanent railway and highway floating bridge with low manufacturing cost and short construction period |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010764744.6A Pending CN111827083A (en) | 2020-07-31 | 2020-07-31 | Light long-distance sea-crossing intelligent permanent railway and highway floating bridge with low manufacturing cost and short construction period |
Country Status (2)
| Country | Link |
|---|---|
| CN (2) | CN111827083A (en) |
| WO (1) | WO2022256948A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111827083A (en) * | 2020-07-31 | 2020-10-27 | 李宽 | Light long-distance sea-crossing intelligent permanent railway and highway floating bridge with low manufacturing cost and short construction period |
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| FR1304551A (en) * | 1969-02-19 | 1962-09-21 | Construction process for structures over bodies of water | |
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| KR102113698B1 (en) * | 2019-05-21 | 2020-05-20 | (주)씨플렉스코리아 | Stretch cord used floating pier |
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| FR2247910A5 (en) * | 1973-10-12 | 1975-05-09 | Doris Dev Richesse Sous Marine | Weighted island for industrial operations at sea - having a heavy base made of horizontal tubular bodies and watertight columns secured to base |
| CN108487182A (en) * | 2018-06-20 | 2018-09-04 | 青岛特瑞安海洋工程科技有限公司 | One kind is from lift floating breakwater |
| CN111827083A (en) * | 2020-07-31 | 2020-10-27 | 李宽 | Light long-distance sea-crossing intelligent permanent railway and highway floating bridge with low manufacturing cost and short construction period |
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2020
- 2020-07-31 CN CN202010764744.6A patent/CN111827083A/en active Pending
-
2021
- 2021-06-08 CN CN202110640282.1A patent/CN114059437A/en active Pending
- 2021-09-27 WO PCT/CN2021/000200 patent/WO2022256948A1/en unknown
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1304551A (en) * | 1969-02-19 | 1962-09-21 | Construction process for structures over bodies of water | |
| CN1259602A (en) * | 1999-01-06 | 2000-07-12 | 刘寄声 | Potoon bordge on sea not rocking with wave and its erection method |
| CN2628577Y (en) * | 2003-04-30 | 2004-07-28 | 王仕禹 | Submerged floating bridge |
| CN1616768A (en) * | 2003-11-11 | 2005-05-18 | 高大放 | Easy navigation type over-sea floating bridge |
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| KR102113698B1 (en) * | 2019-05-21 | 2020-05-20 | (주)씨플렉스코리아 | Stretch cord used floating pier |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111827083A (en) | 2020-10-27 |
| WO2022256948A1 (en) | 2022-12-15 |
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Application publication date: 20220218 |