DE10156950A1 - Construction method for underwater tunnels with steel tunnel sections fabricated on land, acting as lost shuttering and water-protection for internal concrete lining, and completely fitted-out before lowering into water - Google Patents

Abstract

Tunnel tubes are constructed dry on land, full length or in sections, in the form of self-supporting single/multilevel steel sections, for linear or non-linear installation in an excavation. The excavation floor permits the highest part of the construction to be constantly located below the water bottom, or below parts of an existing construction in a channel, and is kept dry by deep wells sunk around it. Water e.g. fresh water, pumped by the wells is supplied for further ecologically sound use. The steel sections act as lost shuttering for internal concrete tunnel, and as outer, corrosion-resistant easily repairable sealing shuttering, to prevent water damage. The concrete tubes are fitted with equipment for end use, and closed by sealed bulkheads.

Description

1. Status of technology

Tunnel structures will be open or closed construction. Decisive for technological decision making for construction include: in addition to the stratigraphic conditions on site, the soil class, existing waters with its deep topography and submerged water channels.

In addition to the mining tunneling Shield driving with simultaneous or subsequent removal of the tunnel tube. The Tunneling is usually a dry technology.

• – an einem Ende in kontinuierlichen Abschnitten gefertigte Tunnelröhre mit. anschließendem Vörwärtspressen in einer eigens geschaffenen mit Wasser gefüllten Vorpreßgrube, welche dann entlang von waagerechten und senkrechten Führungsjochen vorgeschoben wird und die Lagejustierung über Ballastierung der abgedichteten schwimmenden Tunnelspitze erreicht wird; ( DE 33 38 652 C2 )
• – Vorfertigung einzelner Rohrstücke, welche im schwimmfähigen Zustand auf einem Dock transportiert, gemeinsamem mit diesem auf vorbereitete Fundamente abgesenkt und verbunden wird, anschließend das Dock herausgeschwommen und für die Fertigung neuer Rohrstücke genutzt werden kann;. DE 27 31 478 C2 )
• – Vorfertigung kurzer Tunnelsegmente, welche über dem Wasser zu einer Kette gelenkig zusammengesetzt werden und als Gelenkkette, an den Stoßstellen selbstdichtend auf den vorbereiteten Gewässergrund abgesenkt werden; ( EP 1 029 986 A2 )
• – Vorfertigung von langen Tunnelrohrsegmenten aus Stahl oder in Kompositbauweise mit Beton, welche eine Erstnutzung als Fähre ermöglichen, um anschließend auf den Gewässergrund versenkt, als Tunnel genutzt zu werden; ( DE 44 34 527 C2 )
• – Vorfertigung kurzer Tunnelsegmente, welche einzeln im Wasser abgelassen und auf dem Gewässergrund verbunden und oberseitig ballastiert und anschließend mittels eines Dichtungs- und Rohrsystems leergepumpt werden; ( US 4 889 448 )
• – Fertigung von Tunnelsegmenten, welche mit Mitteln zum Fluten und Entwässern ausgerüstet sind und deren Deckenwand Vorrichtungen für die Ballastaufnahme gegen Auftrieb besitzt; ( EP 218 702 )
• – Vorfertigung kurzer Tunnelsegmente, welche eingeschwommen, abgesenkt und mit einem Rohr für den Mörteltransport für Abdichtungsmaßnahmen unter Wasser versehen sind; ( JP 111 32 889 )
• – Vorfertigung von Tunnelsegmenten; welche an ein Transportelement angehängt, auf ein bereits abgesenktes Element abgesetzt und anschließend gleitend an das Ende der bereits vormontierten Tunnelelemente gelangt, abgesenkt und die Tunnelröhre verlängernd verbindet; ( JP 631 38 364 )
• – Vorfertigung kurzer Tunnelsegmente, welche auf einer Gleitfläche auf den Gewässergrund verbracht und unter Wasser miteinander verbunden werden; ( JP 042 29 435 )

Underwater crossing tunnel tubes are made of reinforced concrete. Various prefabrication processes carried out on land are known, for example:

• - At one end in continuous sections manufactured tunnel tube with. Subsequent pressing in a specially created pre-press pit filled with water, which is then advanced along horizontal and vertical guide yokes and the position is adjusted by ballasting the sealed floating tunnel tip; ( DE 33 38 652 C2 )
• - Prefabrication of individual pieces of pipe, which is transported in a buoyant state on a dock, is lowered and connected together with this on prepared foundations, then the dock is floated out and can be used for the production of new pipe pieces. DE 27 31 478 C2 )
• - Prefabrication of short tunnel segments, which are articulated to form a chain over the water and, as an articulated chain, are self-sealingly lowered to the prepared water bed at the joints; ( EP 1 029 986 A2 )
• - Prefabrication of long tunnel tube segments made of steel or in a composite construction with concrete, which enable an initial use as a ferry, and then sinks to the bottom of the water to be used as a tunnel; ( DE 44 34 527 C2 )
• - Prefabrication of short tunnel segments, which are individually drained in the water and connected on the bottom of the body of water and ballasted on the top and then pumped empty using a sealing and pipe system; ( US 4,889,448 )
• - Production of tunnel segments, which are equipped with means for flooding and drainage and whose ceiling wall has devices for ballast absorption against buoyancy; ( EP 218 702 )
• - Prefabrication of short tunnel segments, which are floated in, lowered and provided with a pipe for the transport of mortar for waterproofing measures under water; ( JP 111 32 889 )
• - prefabrication of tunnel segments; which is attached to a transport element, placed on an already lowered element and then slidably reaches the end of the pre-assembled tunnel elements, lowered and connects the tunnel tube to extend; ( JP 631 38 364 )
• - Prefabrication of short tunnel segments, which are brought to the bottom of the water on a sliding surface and connected to each other under water; ( JP 042 29 435 )

The buoyancy is due to the to be determined in terms of structural design of the tunnel tube or by additional Ballasting met.

Water crossing tunnel tubes are one-day, usually created on one level. In several floors executed tunnels are unknown.

Furthermore, tunnel tubes in on shore-side, specially manufactured dry docks as prefabricated concrete pipes floatable among the deepest possible Waterline made. The dry dock is flooded, the tunnel tubes through frontal closure made buoyant, Swim in section on site, parked floating and then valve-controlled flooded, lowered onto the prepared building site and in the water waterproof at the section joints ranked.

The construction pit of the track dock is through sealing walls kept dry.

The object of the invention is in depicting a process in which serving as modes of transport, waters crossing tunnels Any cross-section, including several days, as a section or as a whole long, static self-supporting steel structure prefabricated and subsequently with concrete and equipment completed, in linear or nonlinear alignment, by usable water drainage in an excavation pit below the water level produced dry, in a statically self-supporting, maximum flooded, bridge-like Canal by flooding the hollow body and its additional Flooding tanks are submersible and position-correcting, without hindrance existing ship traffic can be installed and supplementary to the mass of the tunnel tube, constructive installation measures with the surrounding, afterwards Soil masses to be consolidated gravimetrically prevent buoyancy.

The procedure for Construction of tunnels is also a combination of dry and wet technology. It is especially for the crossing is more fluid Currents thought where the construction of bridges For different reasons not possible or are desired.

Depending on the location and length of the tunnel the prefabricated tube made in parallel in sections, inserted and floating on the water or diving and / or deposited on the pre-built Gewässergund the channel gutter to its final length together become.

Drying technology stands for the whole country dry, more user-friendly possible Manufacturing services of the tunnel tube with associated Construction services.

The phase of drying technology, e.g. in the over Deep wells kept dry construction pit, created at a depth, which building object, construction pit protection and channel gutter shoring completely flooded in the event of flooding, the on-site prefabrication of the entire length of the tunnel tube, too in sectional sections, with the highest possible level of equipment performance for the future Tunnel operation, e.g. Roadways, railways, railings, lines.

The tunnel tube can be in any cross-section, can also be designed as a multi-story building.

The wet technology phase involves opening the Excavation pit with the quantity-controlled flooding of the prefabricated, expanded, tunnel tubes sealed as cavities and their additionally installed Flooding tanks for the purpose of swimming in and submerging in one pre-built, installation-secured channel gutter or on water-based foundations.

The principle is also for the crossing in stagnant water applicable.

Through defined tank flooding Adjustment of position and inclination, the now floating and submersible building object, e.g. below the structurally effective, the installation of the channel gutter as a surface bar supportive and this from overflowing material protective, in any desired Position floated and e.g. to the prepared underwater plan or other type of bedding lowered and required for one position correction will be raised again.

Structural, technical and -technological measures dewatering with permanently stable buoyancy prevention, e.g. through statically effective treatment of the surrounding building ground and / or wedging construction measures in the excavated Channel gutter, enable the drainage of the excavation pit of the tunnel tube or its sections.

The type of standing or flowing water enables that To construct the tunnel ends in such a way that the landing of the floating ones tunnel can be done on a dry bank area.

2. Patent research

2.1 Checked font areas

It was done manually in the full texts researched in the notations of the IPC in major and minor classes:

• - DE German utility models from 1983 to June 28, 2001
• - DD from 1977
• - EP from 1978 to 12.9.2001
• - WHERE registrations from 1978 to 7.9.2001
• - U.S. filings from 1978 to July 31, 2001 in the abstracts
• - JP applications from 1976 to July 31, 2001

E 02 D foundations; excavation; embankments or dams; Underground and underwater structures

• - E02D 29/00 self-employed Underground and underwater structures, retaining walls
• - E02D 29/063 Tunnels, introduced into the open water or created in the open water
• - E02D 29/067 Swimming tunnels, bridge-like ones introduced into the water Tunnels, e.g. by pillars or the like above the river bed supported
• - E02D 07 tunnels or formwork therefor prefabricated or continuously manufactured as a whole and then to the installation site on the river bed spent, e.g. in a previously dug trench

E21D shafts, tunnels; Studs or stretch

• - E21D 9/06, 11/10 WO 79/00159 DEVICE AND PROCESS FOR DRIVING GALLERIES WITH A SHIELD
• - E21D 9/08 WO 81/00876 CONVEYOR MOUNTED EXCAVATOR
• - E21D 10/00 tunnels, tunnels or lines, manufactured in open construction or with other methods that interfere with the soil surface along the entire route lock in; Tunnels, sunk or built in open water; Procedure for their manufacturing
• - E21D 10/08 Tunnels, sunk or built in open water
• - E21D 10/10
• Floatable tunnels; like a bridge established underwater tunnels, i.e. Tunnels through piles or Like. About the water floor supported are
• - E21D 10/12 tunnels or formwork FOR; Prefabricated as a whole or manufactured continuously and for Location on the water floor spent, e.g. in a prepared trench
•  E21D 10/14 tunnels or formwork therefor, composed of individual spent on the water floor Sections, e.g. in a prepared trench
• - E21D 10/16 tunnels, at least partially below the water floor built and characterized by manufacturing processes that a disorder of the water floor along the entire route lock in, e.g. Procedure with tunneling into an open construction pit or caisson procedure
• - E21D 10/00 EP 0 552 064 A1 Underwater tunnel and anchoring devices
• - E21D 10/00 0 202 310 Process for establishing a connection between a seabed and an underlying tunnel
• - E21D 10/02 EP 0 585 959 Procedure for realizing a buried pipe
• - E21D 10/04 EP 0 337 680 A2 tunneling
• - E21D 10/04 0 242 497 Tunneling process
• - E21D 10/04 0 206 371 cutting head for the advance of prefabricated concrete pipes for the production of tunnels or tunnels
• - E21D 10/04 0 197 021 Procedure for building a tunnel
• - E21D 10/04 0 102 340 Tunnel construction with concrete elements
• - E21D 10/06 0 183 233 Process for the production of underground structures by means of a door frame cover construction
• - E21D 10/12 0 278 078 A1. Manufacturing facility for producing an elongated Structure, such as underwater tunnel
• - E21D 10/14 0 218 702 Manufacture of underwater surfaces

The US patents also included the IPC notations in the following notations of the US classification researched:

Class 405 Hydraulic and earth engineering

• - 405-132 underground passageway, E.G., tunnel
• - 405-134 Sectional
• - 405-135 seal or joint
• - 405-136 subaqueous
• - 405-137 below bed

2.2 Result of the research

None of the following Writings are presented in the full scope of a solution as they are sought becomes. The solution you are looking for the next come the ones listed below Patents:

• - E21D 010-12 DE 333 86 52 from May 2, 1985 Process for the manufacture of an underwater tunnel (Philipp Holzmann AG, 6000 Frankfurt, DE)
• - E29D 029-06 DE 273 14 78 from 19.1.1978 Process for the production of a tube, eg a tunnel (Hollandsche Beton Groep NV, Rijswijk, NL)
• - E02D - 25/00 EP 102 99 86 dated 23.8.2000 process for the construction of a tunnel (Hageweld Holding, BV)
• - E21D 10/08 JP 0605 80 89 dated 1.3.1994 Construction of underwater structure (Shimizu Corp., JP)
• - E21D 10/14 JP 0131 00 94 14.12.1989 Sinking method (Taisei Corp., JP)
• - E21D 10/14 WO 860 61 33 ( EP 218 702 ) from October 23, 1986 Improvements relating to construction of submerged roadways and other structures (Tomlinson, MJ and AD; Chapmann, ML; Ballard; TJ)

3. Description of the invention

The procedure for establishing Tunnel structures under to be crossed, standing and flowing water characterized in that the tunnel tube

• - user-friendly in sectionally linear or non-linear axis lengths side by side or in full length as a hollow structure in steel formwork any, even multi-day, statically effective Cross sections can be produced and then with a high proportion of equipment on interior in composite construction with concrete, dry in by dewatering e.g. Deep well, construction pit kept dry with a bottom depth, which is the highest point of the building can flush through the level of the river bed or the highest Point of the building object is also statically effective, extensive executable tie bandage the shoring walls can swim in the sewer channel or the construction pit, or the deepest waterline above Valves largely as a flood-controlled, hermetically sealed structure completed, flooded together in the excavation pit and in section production individually into the excavated, secured and against overflowing flooding secured channel gutter floated in there, watertight in rows connected with each other and after reaching their overall length in submersible Layers lowered, inclined or corrected if necessary can be raised;
• - With their outer, in Prefabricated steel jacket, furthermore user-friendly with Concrete composite, - functional, technological, topographical and static-effective, any To develop design forms, e.g. as a multi-day tube network, support line approximation for axis linear or curvy Lines; - permanent the corrosion resistance and tightness of the structure is guaranteed, - in underwater conditions sealing and repairing measures technical-technological reliable and performed safely can be. possible building materials technology Disturbances, e.g. Shrinkage of the concrete can be reliably prevented
• - Concrete corrosion, e.g. due to aggressive water and additional construction-securing concrete coverings are not required, - The concrete reinforcement is minimized in terms of construction and, for example, additional concrete reinforcement for tensile stresses can be omitted, material-saving, construction material-constructive limit value dimensioning of the entire building structure can take place, - if it occurs Distortion of the ground, the building settlements, tensile stresses do not primarily have to be absorbed by the concrete lining, - the concrete to be installed does not have to be provided with technical-technological additives, eg against corrosion, - Without formwork material for the concrete part of the building, this. Can also be implemented as a design-stable, multi-level axis-linear or axis-non-linear tunnel in production-optimized work steps - without the need for a subgrade in the excavation pit with increased evenness requirements;
• - to warranty their exact swimming and diving ability as a closed structure their front sides with airtight, removable bulkheads are, in addition with quantity-controllable flex-inflatable or stationary-fixed flooding equipment and ventilation fittings or also designed as an open, fully flooded structure without bulkheads, only with separately attached, volume-controlled flooding and ventilation fittings equipped are;
• - as prefabricated structure is submersible to float, flood, sink, rise, incline and bank;
• - at dry land, sectional construction in buoyant condition, enlarged, in axis-linear or curving Units put together can be;
• - in whose cavity additional Flooding tanks are installed, which are reversibly different or simultaneous elution control allow the floating. Building over his overall length also selective, lowering to defined diving depths and locations, to maintain them or to correct them ascending or correcting them along- and / or change at the bank;
• - in the dry land construction pit, e.g. selectively from the water to be crossed or completely flooded or e.g. For audit purposes can be drained again and that is pumped out of the deep well Groundwater even after completion and use of the tunnel structure can be used as industrial or drinking water;
• - in the selective or complete flooded state receives the necessary buoyancy in order to submerged or immersed and swimming capable spatial Location changes to experience;
• - With your additional, constructionally and technologically assigned flood tanks the safe Float in defined, depth and length and / or inclination correctable Swimming and diving locations to the destination and also the floating one Cross under flowing waters permits;
• - in defined diving depth so that the sheeting walls are on the top zusäfzlich with wall-stabilizing, extensive Support bolt bandages are filled out can, which the floating process of the submerged tunnel tube does not hinder and can be designed so that cross currents running over them, e.g. of rivers, as far as possible without turbulence, overflow the tunnel tube channel channel and so their possible prevent dislodging deposits from flowing material transport;
• - to floating in the target position on the prepared Soil lowered by flood-relevant flooding measures and if possible Incorrect positions can be raised and corrected again;
• - by suitable design of the construction pit or anchoring on recessed or free-standing pile beds in connection with building structures and building material measures, e.g. wedging-effective sheeting measures, use of flooded, hydrated-consolidated, load-effective filling materials stabilized in this way is and durable remains that at their drainage of the tube and property use no buoyant damage on the lowered structure can arise;
• - by rear-facing, static effective soil stabilization and stabilization, quantity-defined effective, additional Load masses are secured against buoyancy;
• - by such shoring elements is prevented from buoyancy, that the same through shaping and material selection with the surrounding, solidified and stabilized filling and floor masses, a constructionally secured, shoring on both sides Ensure a homogeneous installation position of the building structure that is effective as a whole;
• - in a channel gutter can be floated in, which is caused by the static effective, self-supporting sheeting construction, also with its side adjacent soil masses and overflows, e.g. if there is traffic on the water, it does not impede it and, if necessary, suction dredging as crossing bridge formwork cleared out has been;
• - by the shoring elements, with the flat, statically effective tie bandage, e.g. so with ship-type waters can be spent that their Overall, a water use also during their assembly is not affected and as such below the bottom of the water as soil pressure, stable exposure of the switched-on soil masses, e.g. in the suction excavation process, also possible with overflowing water;
• - to their proper placement on the prepared building site, the flooded Sewer construction pit in the area of the mouth openings of the building, water-blocking and filled to prevent buoyancy and is sealed and thus the prerequisite for the drainage of the excavation pit and tunnel tube creates;
• - on their mouths is designed so that priority for standing or poorly flowing waters dry land is available when landing at the destination.

The present invention will be explained below an exemplary embodiment closer explained.

The representations point to the Scroll 1 - 3 to 3 - 3 in detail

Sheet 1 - 3:

Image 1]

• (1) Baugrube mit einer Sohltiefe, welche das Einschwimmen des höchsten Bauteiles der vorgefertigten Tunnelröhre in einen vorhandenen Kanalrinnenverbau ermöglicht.
• (2) Baustelleneinrichtung, Baugrube, hier als achsenlinear dargestellte Kanalrinne und Tiefbrunnensystem mit Ringleitung zur Wasserversorgung für Dritte.
• (3) Statisch selbstragende Stahlmantelröhre als verlorene Schalung für den Betoneinbau, hier ausgeführt als Mehrröhrensystem in zwei Etagen.
• (4) Betoneinbau mit Nutzerausrüstungen, z.B. für Fußgänger, Rollbänder, Straßenbahnen, sonstige Schienen- und Straßenfahrzeuge sowie Notdurchgängen zwischen den einzelnen Verkehrsröhren.

Assembly pit with sectional views of tunnel sections in the steel self-supporting shell and removed condition with flooding tanks in front of the water-crossing, tunnel shoring, including the following detailed descriptions:

• (1) Excavation pit with a depth that enables the highest component of the prefabricated tunnel tube to float into an existing channel gutter shoring.
• (2) Construction site equipment, excavation pit, here shown as a linear channel drain and deep well system with ring line for water supply for third parties.
• (3) Statically self-supporting steel jacket tube as lost formwork for concrete paving, here implemented as a multi-tube system on two floors.
• (4) Concrete installation with user equipment, e.g. for pedestrians, conveyor belts, trams, other rail and road vehicles as well as emergency passages between the individual traffic tubes.

Picture 2]

• (5) Ventilbestückte Schottwand für mengendefinierte Flutung und Entleerung der Tunnelröhre.
• (6) Separat gesteuerte, längs der Tunnelröhre verteilte, als starr oder flexibel ausgeführte Flutungstanks mit mengendefinierter Flutung und Entleerung zur Nivellierung und Korrektur der Tunnelröhrenlage.
• (7) Keilförmiger Rahmenverbau in der Kanalrinne mit konstruktiv gewährleisteter, mengendefinierter Verbundwirkung der Seitenwände mit den außenseitig anliegenden und innenseitig verfüllten und als solche nachverfestigten Bodenmassen.
• (8) Flächige Riegelausbildung zur Unterbindung von Einschwemmungen in strömenden oder befahrenen Gewässern.

In the water-crossing tunnel shoring, partitioned, partially flooded, floating tunnel section during the swimming process with its selectively driven flood tanks for project-defined or position-correcting longitudinal and transverse inclinations, including the following detailed descriptions:

• (5) Valve-equipped bulkhead for quantity-defined flooding and emptying of the tunnel tube.
• (6) Separately controlled, rigid or flexible flooding tanks distributed along the tunnel tube with quantity-defined flooding and emptying for leveling and correcting the tunnel tube position.
• (7) Wedge-shaped frame sheeting in the channel gutter with a structurally guaranteed, quantity-defined composite effect of the side walls with the outside and adjacent and internally reinforced floor masses.
• (8) Flat bar formation to prevent flooding in flowing or trafficked waters.

Sheet 2 - 3 in addition to sheet 1 - 3:

Picture 3]

Side view of the floating Tunnel section from the flooded construction pit in the water-crossing ends Tunnel shoring, among others with the following detailed representations:

• (9) Floating in according to ( 4 ) prefabricated tunnel segment from the flooded excavation pit into the channel channel, which is secured against installation.

Image [4]

Side view of the floating tunnel section in the water-draining Tunnelverbau.

Image [5]

Side view of two floating, to Tunneling of coupled sections.

Sheet 3 - 3:

Image [6]

Land-side excavation pit with construction site equipment, Deep well and a prefabricated tunnel section and detailed display (2).

Image [7]

As picture [6] with two assembled Tunnel sections.

Image [8]

Like picture [7] and in the one to be crossed waters created, built-in channel gutter with simultaneous flooding of the Excavation.

Image [9]

As picture [8] with floating of the first tunnel section into the channel channel after flooding with detailed representation ( 9 ).

Image [10]

As picture [8] with transverse thrust of a tunnel section into the route axis of the water-crossing tunnel shoring with detailed representation ( 10 ).

• (10) Excavation pit with axis-linear channel gutter and row another prefabricated tunnel segment from the excavation pit as well Manufacture more shockproof Connections between the building segments.

Image [11]

Like picture [10] with connection to you two tunnel sections for the planned tunnel length.

Image [12]

As picture [11] with insertion of the final tunnel into the built-in channel gutter.

Image [13]

• (11) Hydratisiert verfestigte Kanalrinnenverfüllung.
• (12) Hydratisiert verfestigte, verbau-außenseitig anliegende Bodenmassen.

Cross-section of the offset, user-planned tunnel tube with the disassembled, flat bolt structure of the channel gutter shoring as well as the buoyancy-preventing, re-consolidated, inside and outside-lying soil masses, including detailed representations:

• (11) Hydrates solidified channel fill.
• (12) Hydrates solidified flooring that is in contact with the outside.

Claims (6)

Land dry, sectional or holistic long Manufacture of tunnel tubes as self-supporting steel sections any, also multi-day Cross sections for linear or nonlinear alignment in a construction pit with a Depth of the bottom, which enables that itself the highest Part of the building always below the water level or components an existing shoring construction is located in a channel gutter and is kept dry by the surrounding deep well, its pumped water, e.g. as a freshwater of an ecological Third party use fed can be. The steel tunnel tube serves as lost formwork for the concrete to be installed on the inside and for this purpose as a statically load-bearing composite element as well as the outer, corrosion-resistant, always repairable sealing shell and permanently protects the concrete from external, water-aggressive influences and maximally completed with the necessary equipment for the planned use with equipment, which is sealed from the open tube to the hollow body by valve-side bulkheads. The excavation pit with the prefabricated steel-concrete tunnel pipe segments can be flooded and are the closed hollow bodies floatable Objects over the bulkhead valves are fixed in depth by quantity-defined flooding, also under the shoring in the prepared channel channel can dive Additionally about the overall length distributed the tunnel tube, rigid or flexible flooding tanks allow fine adjustments for lowering to the ground or a position correcting, too to carry out local lifting of the submersible building and allow equally an inclined floating in of the tunnel tube or its inclination. Provided water crossings requires a channel gutter, its cross-section is a self-supporting, fixed by laterally lying floor masses, tapering upwards in a wedge shape, tripartite frame, which can also be used as a temporary assembly aid Latch, by its areal Training when crossing flat over the river bed flowing waters Prevents flooding, an unwanted sending of the excavated channel gutter prevented and its depth below the river bed not an inevitable Interruption of existing traffic on the water during the Tunnel tube assembly presupposes and as a self-supporting assembly system an undisturbed recording by possible external influences of the ground masses enclosed in the shoring construction. The wedge-shaped Frame lining of the channel gutter forms with those injected by hydration Binders re-consolidated, laterally applied soil masses including of the flooded fillings one in the channel groove and the mass of the tunnel tube Total mass, which gravimetrically shows its buoyancy after pumping out prevented.