WO2018061043A2 - System and method for the realization of self-floating submarine tunnel formed by individually floating parallelepiped-shaped modules made of reinforced concrete - Google Patents
System and method for the realization of self-floating submarine tunnel formed by individually floating parallelepiped-shaped modules made of reinforced concrete Download PDFInfo
- Publication number
- WO2018061043A2 WO2018061043A2 PCT/IT2017/000202 IT2017000202W WO2018061043A2 WO 2018061043 A2 WO2018061043 A2 WO 2018061043A2 IT 2017000202 W IT2017000202 W IT 2017000202W WO 2018061043 A2 WO2018061043 A2 WO 2018061043A2
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- WO
- WIPO (PCT)
- Prior art keywords
- tunnel
- modules
- cables
- post
- seabed
- Prior art date
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/063—Tunnels submerged into, or built in, open water
- E02D29/067—Floating tunnels; Submerged bridge-like tunnels, i.e. tunnels supported by piers or the like above the water-bed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
- B63B21/50—Anchoring arrangements or methods for special vessels, e.g. for floating drilling platforms or dredgers
- B63B21/502—Anchoring arrangements or methods for special vessels, e.g. for floating drilling platforms or dredgers by means of tension legs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B5/00—Hulls characterised by their construction of non-metallic material
- B63B5/14—Hulls characterised by their construction of non-metallic material made predominantly of concrete, e.g. reinforced
- B63B5/18—Hulls characterised by their construction of non-metallic material made predominantly of concrete, e.g. reinforced built-up from elements
Definitions
- the present invention has for object a method and a system to realize floating tunnel formed by the aggregation of floating parallelepiped-shaped modules made of reinforced concrete, the whole of the union of these modules is solidarized by forming a single body by inserting and pulling special steel cables that cross the entire tunnel in separated sections into sheaths arranged in the walls of the modules themselves, the pulled cables, locked in this position, compress the structure to increase its resistance, the cables are positioned both vertically and horizontally.
- the method and the present system are also characterized by the fact that the quota of the tunnel does not vary with the tides and the loads to which it is subjected. Today, there is a great need for floating, even submerged, tunnels, both on high and medium depths, in order to connect separate offshore sections.
- the use of the solutions currently adopted involves the fact that the tunnel's modules are segments of the tunnel in which the section of the walls is full or are formed of a set of full and not floating modules aggregated together to form the tunnel section, in both cases the tunnel's sections being formed by solid walls are very heavy with obvious contra-indications to floating of the tunnel, which therefore needs additional floats obtained in or out of the tunnel section necessary to obtain sufficient floating thrust.
- the system and method of the present invention overcome these drawbacks by using the modules which are individually empty inside and singly floating forming the tunnel walls, the union of the set of said modules forms the section of the tunnel, which being not with full section walls, is particularly light and able to float the tunnel without the help of additional floats, the tunnel is therefore particularly lightweight and resistant at the same time, as the whole of the empty modules joined together make of the walls of the tunnel particularly rigid thanks to the innumerable ribs, obtained by joining together the walls forming the individual modules, with septums inside, then finally increases the resistance, having at the same time modest weights of the entire structure.
- the tunnel modules are in reinforced concrete with conventional reinforcement and the union is made with steel rods such as "dywidag" and post-compressed steel cables inserteded in appropriate sheath and then tension ed and locked, with subsequent injection of cement mortar for the solidarization between sheaths and cables.
- the present invention is also achieved the advantage to realize tunnels having an invarible quota compared to overloads and tides, this result is obtained by partially flooding of the modules which make up the tunnel up to sink them for required amount, subsequently, after the tensioning of the anchoring cables to seabed, the modules are emptied of the accumulated water creating a further thrust force to float, tensioning further the connections to the seabed, realizing a pre - tensioning that can counter the loads it is subjected to, including those generated by sea currents.
- Another advantage of the present invention is the speed of the tunnel assembly, being the same prefabricated and transported by sea.
- a system for the realization of floating tunnel on water level or submerged characterized in that the constituent sides of the tunnel are formed by a set of modules 4 individually floating, inside empty, suitably joined together to form the closed section of the tunnel, the tunnel is independently float without the aid of additional floats or additional volumes, being formed by a set of floating modules 4, between the joined modules 4 there is a sealing mortar of the joining sides, the union of the modules 4 is made with steel bars bolted between them and post-compression cables 1 and 2 tensioned; these modules 4 are of parallelepiped shape; the modules 4 are joined together on their sides; these modules 4 are in reinforced concrete; inside the modules there is at least a septum 20 made of reinforced concrete; in the modules 4 that compose the tunnel there are the post-tensioned cables 1 and 2; these cables of post-compression of the modules are housed in the sheaths 9 situated in the areas below and above the walls of the modules; these sheaths are perpendicular to the walls of contact and
- a method for the realization of floating tunnels characterized in that it comprises a first phase with the positioning of weights on the seabed or with the realization of piles or foundations on the seabed for anchoring the tunnel; a subsequent step in which a first floating module made of reinforced concrete having the shape of a parallelepiped closed with at least an internal septum is joined on the longer side to a second module equal to the first aligning its center line with the beginning of the longer side of the second module, the union takes place provisionally by steel bars properly bolted; subsequently the second phase is repeated by adding more modules to obtain the lower side of the tunnel; as they are joined together a number of modules constituting the lower side of the tunnel, the same modules are anchored to the seabed via cables or chains; a further step involves the solidarization of the aggregated modules by means of the insertion and the pull of post-tensioning cables in suitable sheaths positioned in the lower and upper zones of the vertical walls of the modules and of the septum, the post-compression cables are inserted into
- Fig.1 shows module 4, a transparent generic module, putting in evidence by dashed lines 3 the passages of the sheaths that host the cables for the post-compression 1 and 2.
- Fig.2 shows schematically a generic module as a first realization prototype
- module 4 is made of reinforced concrete with conventional reinforcement and with predisposed sheaths 9 for the passage of post-compression cables
- the indicated threated bars 8 are meant to temporarily hook other modules to the module before the post-compressions of the cables
- projections 7 and recesses 6 are drawn with negative form with respect to projections
- these projections and recessions are meant for the centering between the modules that will be aggregated, in the end in Fig.2 hermetic trapdoors 5 of access to module 4 are shown.
- Fig. 3 shows a schematic aggregation of some modules that form a part of the lower side of the tunnel 10, inserted in a water mirror with surface 11 , this portion is anchored to the seabed 12 by the wheights 13 and links with steel chains 14, in addition the passages of the post- tensioned steel cables are shown with dashed line 15 that will proceed in the remaining parts of the tunnel.
- Fig.4 shows the step in which vertical walls 16 are fixed to the lower side 17 of the tunnel, the water surface is indicated with 11 and seabed is 12, the weights 13 on the seabed are connected to linking cables 14 to the tunnel, the dashed elements 1 and 2 indicate the passages of the post-tensioned steel cables, that will proceed in the remaining parts of the tunnel.
- Fig. 5 shows the tunnel section 23 with related upper part of the tunnel 18, having modules joined together as in Fig. 3 and 4, water surface is indicated with 11 , the seabed is 12, the weights on the seabed are 13 and anchoring cables to seabed are 14, the dashed elements 1 and 2 indicate the passage of the post-tensioned steel cables that will proceed in the remaining parts of the tunnel.
- Fig. 6 shows a sectioned part of finished tunnel 19 made of several sections as the one indicated in Fig.5, again in Fig.6 the tunnel 19 is positioned under the water surface 11 and anchored to the seabed 12 by the weights 13 and the cables 14, in this figure the tunnel 19 is already emptied from internal water of the construction steps.
- the anchoring to the seabed can be realized in several ways, either by use of weights, or by use of piles inserted to the seabed, or by other technical known systems. Some modules composing the platform can be of increased height and different from the others to satisfy structural requirements and/or platform usage practice requirements.
- the post-tensioned cables are blocked after the tensioning with specific metallic wedges inserted in specific housing, the modules where the blocking takes place are built with the required housings.
Abstract
The invention has for object a system and a method for the realization of floating tunnels formed by the aggregation of floating modules in reinforced concrete having a parallelepiped shape, the whole of the union of these modules is solidarized by forming a single body by inserting and pulling special steel cables that cross the entire tunnel in separated sections into sheaths arranged in the walls of the modules themselves, the pulled cables, locked in this position, compress the structure to increase its resistance, the cables are positioned both vertically and horizontally.
Description
DESCRIPTION
"System and method for the realization of self-floating submarine tunnel formed by individually floating parallelepiped-shaped modules made of reinforced concrete"
The present invention has for object a method and a system to realize floating tunnel formed by the aggregation of floating parallelepiped-shaped modules made of reinforced concrete, the whole of the union of these modules is solidarized by forming a single body by inserting and pulling special steel cables that cross the entire tunnel in separated sections into sheaths arranged in the walls of the modules themselves, the pulled cables, locked in this position, compress the structure to increase its resistance, the cables are positioned both vertically and horizontally. The method and the present system are also characterized by the fact that the quota of the tunnel does not vary with the tides and the loads to which it is subjected. Today, there is a great need for floating, even submerged, tunnels, both on high and medium depths, in order to connect separate mainland sections. In the current state of the art there are modular systems that realize floating tunnel through the joining of tunnel sections, usually cylindrical, aggregated and solidified together, the use of the solutions currently adopted involves the fact that the tunnel's modules are segments of the tunnel in which the section of the walls is full or are formed of a set of full and not floating modules aggregated together to form the tunnel section, in both cases the tunnel's sections being formed by solid walls are very heavy with obvious contra-indications to floating of the tunnel, which therefore needs additional floats obtained in or out of the tunnel section necessary to obtain sufficient floating thrust. The system and method of the present invention overcome these drawbacks by using the modules which are individually empty inside and singly floating forming the tunnel walls, the union of the set of said modules forms the section of the tunnel, which being not with full section walls, is particularly light and able to float the tunnel without the help of additional floats, the tunnel is therefore particularly lightweight and resistant at the same time, as the whole of the empty modules joined together make of the walls of the tunnel particularly rigid thanks to the innumerable ribs, obtained by joining together the walls forming the individual modules, with septums inside, then finally increases the resistance, having at the same time modest weights of the entire structure. The tunnel modules are in reinforced concrete with conventional reinforcement and the union is made with steel rods such as "dywidag" and post-compressed steel cables inserteded in appropriate sheath and then tension ed and locked, with subsequent injection of cement mortar for the solidarization between sheaths and cables. With the present invention is also achieved the advantage to realize tunnels having an invarible quota compared to overloads and tides, this result is obtained by partially flooding of the modules which make up the tunnel up to sink them for required amount, subsequently, after the tensioning of the anchoring cables to seabed, the modules are emptied of the accumulated water creating a further thrust force to float, tensioning further the connections to the seabed, realizing a pre - tensioning that can counter the loads it is subjected
to, including those generated by sea currents. Another advantage of the present invention is the speed of the tunnel assembly, being the same prefabricated and transported by sea.
With the present invention such and others intents are achieved by a system for the realization of floating tunnel on water level or submerged, characterized in that the constituent sides of the tunnel are formed by a set of modules 4 individually floating, inside empty, suitably joined together to form the closed section of the tunnel, the tunnel is independently float without the aid of additional floats or additional volumes, being formed by a set of floating modules 4, between the joined modules 4 there is a sealing mortar of the joining sides, the union of the modules 4 is made with steel bars bolted between them and post-compression cables 1 and 2 tensioned; these modules 4 are of parallelepiped shape; the modules 4 are joined together on their sides; these modules 4 are in reinforced concrete; inside the modules there is at least a septum 20 made of reinforced concrete; in the modules 4 that compose the tunnel there are the post-tensioned cables 1 and 2; these cables of post-compression of the modules are housed in the sheaths 9 situated in the areas below and above the walls of the modules; these sheaths are perpendicular to the walls of contact and union of the modules 4, the same applies to the upper and lower zones of septa 20 located within the modules; the post-compression cables 1 and 2 are placed through one module 4 and the next and so on for all modules which make up the tunnel; the cables 1 and 2 follow the perpendicular directions 21 and 22; the post- compression cables 1 and 2 are in tension; the entire tunnel has in its interior the post- compression cables in tension 1 and 2; between the post-compression cables 1 and 2 and the related sheaths it is located a cement mortar that joins the cables 1 and 2 with the sheaths 9; the tunnel is anchored to the seabed 12 and attached to it with ropes or chains 14 to weights 13 or piles anchored into the seabed 12 or integral foundations to the seabed; the tunnel is submerged respect to the normal line of flotation at least of a quantity equal to the maximum excursion of the tides added to sinking which would under the effect of the maximum loads acting on the tunnel.
These aims are achieved by a method for the realization of floating tunnels characterized in that it comprises a first phase with the positioning of weights on the seabed or with the realization of piles or foundations on the seabed for anchoring the tunnel; a subsequent step in which a first floating module made of reinforced concrete having the shape of a parallelepiped closed with at least an internal septum is joined on the longer side to a second module equal to the first aligning its center line with the beginning of the longer side of the second module, the union takes place provisionally by steel bars properly bolted; subsequently the second phase is repeated by adding more modules to obtain the lower side of the tunnel; as they are joined together a number of modules constituting the lower side of the tunnel, the same modules are anchored to the seabed via cables or chains; a further step involves the solidarization of the aggregated modules by means of the insertion and the pull of post-tensioning cables in suitable sheaths positioned in the lower and upper zones of the vertical walls of the modules and of the
septum, the post-compression cables are inserted into and prestressed in the directions perpendicular to the vertical walls of the long and short side of the modules forming the lower side of the floating tunnel; the post-tension cables are made integral to the sheaths by the injection of cement mortar between the cable and the sheath; in the next phase the aggregated modules are partially flooded to sink them until the correct quantity in order to position and aggregate easily the modules forming the vertical walls of the tunnel and at the same time the connections to the seabed have to be tensioned again; in the following phase are placed the modules constituting the vertical sides of the tunnel and potential septa of the tunnel section which reinforce and divide the cross section of the tunnel itself, following for the union of said modules the same modality used for the provisional union and for the post-compression described in the previous steps for the union of the lower side of the tunnel; in a further step is realized separately the upper side of the tunnel consisting of modules joined and made integral with each other in the modality described in the preceding phases for the realization of the lower side of the tunnel; subsequently there is the phase in which the lower side of the tunnel with the vertical sides and the septa are further sunk to the correct depth from the water surface in order to ease positioning and joining the upper side of tunnel previously realized, at the same time the connections to the seabed have to be tensioned again; phase of positioning and mounting of the upper side of the tunnel on the vertical walls of the tunnel itself by means of union with steel bars; phase of insertion and pull of the post-compression cables with mortar injections as already described in the previous phases; subsequently are flooded the modules forming the upper side of the tunnel to get the right sinking of the tunnel itself; in the next step there is the emptying of the caissons by pumping water previously accumulated to tension the connections of the tunnel with the seabed; in a last step, the entire finished tunnel is emptied of water contained in the areas intended for use and transit of the tunnel itself.
The characterstics and advantages of the present invention will be evident by the following description of its practical realization, shown in the attached not limiting drawings, in which: Fig.1 shows module 4, a transparent generic module, putting in evidence by dashed lines 3 the passages of the sheaths that host the cables for the post-compression 1 and 2.
Fig.2 shows schematically a generic module as a first realization prototype, module 4 is made of reinforced concrete with conventional reinforcement and with predisposed sheaths 9 for the passage of post-compression cables, the indicated threated bars 8 are meant to temporarily hook other modules to the module before the post-compressions of the cables, there are drawn projections 7 and recesses 6 are drawn with negative form with respect to projections, these projections and recessions are meant for the centering between the modules that will be aggregated, in the end in Fig.2 hermetic trapdoors 5 of access to module 4 are shown.
Fig. 3 shows a schematic aggregation of some modules that form a part of the lower side of the tunnel 10, inserted in a water mirror with surface 11 , this portion is anchored to the seabed 12 by the wheights 13 and links with steel chains 14, in addition the passages of the post-
tensioned steel cables are shown with dashed line 15 that will proceed in the remaining parts of the tunnel.
Fig.4 shows the step in which vertical walls 16 are fixed to the lower side 17 of the tunnel, the water surface is indicated with 11 and seabed is 12, the weights 13 on the seabed are connected to linking cables 14 to the tunnel, the dashed elements 1 and 2 indicate the passages of the post-tensioned steel cables, that will proceed in the remaining parts of the tunnel.
Fig. 5 shows the tunnel section 23 with related upper part of the tunnel 18, having modules joined together as in Fig. 3 and 4, water surface is indicated with 11 , the seabed is 12, the weights on the seabed are 13 and anchoring cables to seabed are 14, the dashed elements 1 and 2 indicate the passage of the post-tensioned steel cables that will proceed in the remaining parts of the tunnel.
Fig. 6 shows a sectioned part of finished tunnel 19 made of several sections as the one indicated in Fig.5, again in Fig.6 the tunnel 19 is positioned under the water surface 11 and anchored to the seabed 12 by the weights 13 and the cables 14, in this figure the tunnel 19 is already emptied from internal water of the construction steps. The anchoring to the seabed can be realized in several ways, either by use of weights, or by use of piles inserted to the seabed, or by other technical known systems. Some modules composing the platform can be of increased height and different from the others to satisfy structural requirements and/or platform usage practice requirements. The post-tensioned cables are blocked after the tensioning with specific metallic wedges inserted in specific housing, the modules where the blocking takes place are built with the required housings.
Claims
1. System for the realization of floating tunnel on water level or submerged, characterized in that the constituent sides of the tunnel are formed by a set of modules 4 individually floating, inside empty, suitably joined together to form the closed section of the tunnel, the tunnel is independently float without the aid of additional floats or additional volumes, being formed by a set of floating modules 4, between the joined modules 4 there is a sealing mortar of the joining sides, the union of the modules 4 is made with steel bars bolted between them and post- compression cables 1 and 2 tensioned; these modules 4 are of parallelepiped shape; the modules 4 are joined together on their sides; these modules 4 are in reinforced concrete; inside the modules there is at least a septum 20 made of reinforced concrete; in the modules 4 that compose the tunnel there are the post-tensioned cables 1 and 2; these cables of post- compression of the modules are housed in the sheaths 9 situated in the areas below and above the walls of the modules; these sheaths are perpendicular to the walls of contact and union of the modules 4, the same applies to the upper and lower zones of septa 20 located within the modules; the post-compression cables 1 and 2 are placed through one module 4 and the next and so on for all modules which make up the tunnel; the cables 1 and 2 follow the perpendicular directions 21 and 22; the post-compression cables 1 and 2 are in tension; the entire tunnel has in its interior the post-compression cables in tension 1 and 2; between the post-compression cables 1 and 2 and the related sheaths it is located a cement mortar that joins the cables 1 and 2 with the sheaths 9; the tunnel is anchored to the seabed 12 and attached to it with ropes or chains 14 to weights 13 or piles anchored into the seabed 12 or integral foundations to the seabed; the tunnel is submerged respect to the normal line of flotation at least of a quantity equal to the maximum excursion of the tides added to sinking which would under the effect of the maximum loads acting on the tunnel.
2. System according to claim 1 constituted by the fact that the reinforced concrete tunnel is reinforced in addition to conventional reinforcement also with post-compressed cables.
3. System according to claim 1 constituted by the fact that some modules are of different geometrical dimensions from the other modules to meet specific structural requirements, geometric or functional requirements of the tunnel.
4. System according to claim 1 constituted by the fact that in some modules are inserted the housings to execute the tensioning and the locking of the post-compression steel cables.
5. System according to claim 1 constituted by the fact that the tunnel section can be circular in shape.
6. Method for the realization of floating tunnels characterized in that it comprises a first phase with the positioning of weights on the seabed or with the realization of piles or foundations on the seabed for anchoring the tunnel; a subsequent step in which a first floating module made of reinforced concrete having the shape of a parallelepiped closed with at least an internal septum is joined on the longer side to a second module equal to the first aligning its center line with the
beginning of the longer side of the second module, the union takes place provisionally by steel bars properly bolted; subsequently the second phase is repeated by adding more modules to obtain the lower side of the tunnel; as they are joined together a number of modules constituting the lower side of the tunnel, the same modules are anchored to the seabed via cables or chains; a further step involves the solidarization of the aggregated modules by means of the insertion and the pull of post-tensioning cables in suitable sheaths positioned in the lower and upper zones of the vertical walls of the modules and of the septum, the post- compression cables are inserted into and prestressed in the directions perpendicular to the vertical walls of the long and short side of the modules forming the lower side of the floating tunnel; the post-tension cables are made integral to the sheaths by the injection of cement mortar between the cable and the sheath; in the next phase the aggregated modules are partially flooded to sink them until the correct quantity in order to position and aggregate easily the modules forming the vertical walls of the tunnel and at the same time the connections to the seabed have to be tensioned again; in the following phase are placed the modules constituting the vertical sides of the tunnel and potential septa of the tunnel section which reinforce and divide the cross section of the tunnel itself, following for the union of said modules the same modality used for the provisional union and for the post-compression described in the previous steps for the union of the lower side of the tunnel; in a further step is realized separately the upper side of the tunnel consisting of modules joined and made integral with each other in the modality described in the preceding phases for the realization of the lower side of the tunnel; subsequently there is the phase in which the lower side of the tunnel with the vertical sides and the septa are further sunk to the correct depth from the water surface in order to ease positioning and joining the upper side of tunnel previously realized, at the same time the connections to the seabed have to be tensioned again; phase of positioning and mounting of the upper side of the tunnel on the vertical walls of the tunnel itself by means of union with steel bars; phase of insertion and pull of the post-compression cables with mortar injections as already described in the previous phases; subsequently are flooded the modules forming the upper side of the tunnel to get the right sinking of the tunnel itself; in the next step there is the emptying of the caissons by pumping water previously accumulated to tension the connections of the tunnel with the seabed; in a last step, the entire finished tunnel is emptied of water contained in the areas intended for use and transit of the tunnel itself.
7. Method according to claim 6, constituted by the fact that the tunnel is achieved in stages with the union of a finite individual sections to form the entire tunnel.
8. Method according to claim 6 constituted by the fact that the step of anchoring to the seabed of the tunnel is performed progressively by degrees in proportion to the assembling of the tunnel sections.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201780059712.2A CN109803884A (en) | 2016-09-27 | 2017-09-25 | The independent suspension type parallelepiped module made of armored concrete realizes the System and method for from suspension seabed tunnel |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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IT102016000096669A IT201600096669A1 (en) | 2016-09-27 | 2016-09-27 | System and method for the realization of autonomously floating underwater tunnels formed by individually floating parallelepiped-shaped modules made of reinforced concrete |
IT102016000096669 | 2016-09-27 |
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WO2018061043A2 true WO2018061043A2 (en) | 2018-04-05 |
WO2018061043A3 WO2018061043A3 (en) | 2018-05-11 |
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PCT/IT2017/000202 WO2018061043A2 (en) | 2016-09-27 | 2017-09-25 | System and method for the realization of self-floating submarine tunnel formed by individually floating parallelepiped-shaped modules made of reinforced concrete |
Country Status (3)
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CN (1) | CN109803884A (en) |
IT (1) | IT201600096669A1 (en) |
WO (1) | WO2018061043A2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109653248A (en) * | 2018-11-07 | 2019-04-19 | 浙江大学 | It is a kind of for anchoring the adjustable anchor cable device of submerged floating tunnel tube body |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
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CN113895576A (en) * | 2019-07-06 | 2022-01-07 | 王建平 | Water floating type steel-concrete structure house building and structure engineering |
CN112878374B (en) * | 2021-01-18 | 2022-09-20 | 重庆交通大学 | Suspension tunnel connecting member |
KR102585366B1 (en) * | 2022-08-12 | 2023-10-06 | 한국건설기술연구원 | Casing typed shear connecting apparatus, concrete marine buoyancy structure connection method and concrete marine buoyancy structure using the same |
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US3788254A (en) * | 1971-12-28 | 1974-01-29 | J Sheil | Floating platform |
FR2597826B1 (en) * | 1986-04-29 | 1991-01-04 | Gey Robert | MODULAR FLOAT AND METHOD FOR ASSEMBLING A PLURALITY OF SUCH FLOATS TO CONSTITUTE A FLOATING MACHINE |
US5107785A (en) * | 1990-12-07 | 1992-04-28 | Baxter Hal T | Floating dock and breakwater |
US5899635A (en) * | 1997-05-09 | 1999-05-04 | Kuja; Michael W. | Transportation underwater tunnel system |
US20050103250A1 (en) * | 2003-10-31 | 2005-05-19 | Thomson Howard M. | Corrosion resistant prestressed concrete float system |
-
2016
- 2016-09-27 IT IT102016000096669A patent/IT201600096669A1/en unknown
-
2017
- 2017-09-25 WO PCT/IT2017/000202 patent/WO2018061043A2/en active Application Filing
- 2017-09-25 CN CN201780059712.2A patent/CN109803884A/en active Pending
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109653248A (en) * | 2018-11-07 | 2019-04-19 | 浙江大学 | It is a kind of for anchoring the adjustable anchor cable device of submerged floating tunnel tube body |
CN109653248B (en) * | 2018-11-07 | 2020-08-04 | 浙江大学 | Adjustable anchor cable device for anchoring suspended tunnel pipe body |
Also Published As
Publication number | Publication date |
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CN109803884A (en) | 2019-05-24 |
IT201600096669A1 (en) | 2018-03-27 |
WO2018061043A3 (en) | 2018-05-11 |
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