CN115434367B

CN115434367B - Submarine tunnel modularization laying device

Info

Publication number: CN115434367B
Application number: CN202211130768.1A
Authority: CN
Inventors: 路懿; 路扬; 丁玲; 常泽锋
Original assignee: Yanshan University
Current assignee: Yanshan University
Priority date: 2022-09-16
Filing date: 2022-09-16
Publication date: 2023-05-26
Anticipated expiration: 2042-09-16
Also published as: CN115434367A

Abstract

The invention relates to a submarine tunnel modularized paving device which comprises a submarine tunnel, a propelling machine and a sealing head, wherein the submarine tunnel comprises a plurality of supports, a plurality of tunnels, sealing rings and sealing connection assemblies, the supports are arranged between two adjacent tunnels, the sealing rings are arranged between the two adjacent tunnels, the sealing connection assemblies are connected with the two adjacent tunnels, the supports are uniformly distributed and fixedly arranged on the surface of the submarine, the tunnels are arranged on the supports, the sealing rings are arranged between the two adjacent tunnels, the two adjacent tunnels are connected through the sealing connection assemblies, the propelling machine and the sealing head are arranged in the tunnels, the sealing head is arranged at the front end of the propelling machine, and the propelling machine is alternately locked and released in the tunnels through a gear rack mechanism. The submarine tunnel is built in a modularized mode, so that the submarine tunnel is convenient to manufacture and install, meanwhile, when the propeller is locked, the sealing head can be driven to move forwards by driving the gear screw mechanism to synchronously rotate forwards, and when the propeller is unlocked, the sealing head can be driven to move forwards by driving the gear screw mechanism to synchronously rotate reversely.

Description

Submarine tunnel modularization laying device

Technical Field

The invention belongs to the technical field of traffic pipeline engineering, and particularly relates to a submarine tunnel modularized paving device.

Background

Submarine tunnels are traffic pipeline technical engineering for building communication between land and transportation under the seafloor at strait, bay, estuary and the like. The submarine tunnel does not prevent the navigation of the water ship, does not prevent the transverse flow of seawater flow above and below the tunnel, and is not influenced by weather conditions such as strong wind and strong fog, so that the submarine tunnel is a rapid, energy-saving and convenient transportation channel for vehicles to pass through straits, gulfs and estuaries. The well-known submarine tunnels built in the world at present are Japanese green tunnels, english strait tunnels, port and Australian bridge tunnels and the like.

The construction of submarine tunnels is usually completed by large-scale machines and is also isolated from seawater, so that the construction of submarine tunnels is always a great challenge in the field of world construction engineering. Submarine tunnels are generally classified into two types, below the submarine strata and at the surface of the seabed. The current method for paving the submarine tunnel comprises the following steps: (1) The drilling and blasting method is characterized in that in the process of blasting by punching and loading explosive, water is easy to infiltrate into a tunnel in the process of excavating the tunnel, an engineer is required to adopt a waterproof remedy method, the whole tunnel is cast in situ, the submarine earthwork amount is large, and the submarine earthwork amount is limited by a submarine geographic structure. (2) The shield method uses a large shield machine to push out soil layers under the submarine stratum, and uses a transporting machine to send out the soil and assemble the soil into a tunnel. Because the tunnel is formed by splicing the duct pieces, the requirement on the duct pieces is particularly high, and absolute waterproofing is required. (3) The immersed tube method is used for constructing the bridge tunnel of the Kong-zhu-ao bridge. In the process of paving the tunnel, seawater is prevented from being poured into the tunnel, each section of tunnel prefabricated member is paved, the tunnel can be directly paved into the tunnel to be constructed, the paving construction is synchronously carried out, the process is complex, and the method has respective defects. Chinese patent CN112341013B discloses a cement for grouting a submarine tunnel and a preparation method thereof, for improving the compressive strength of the submarine tunnel; chinese patent CN110241858B discloses a sealing technique for a submarine tunnel junction, and the operator on the operation desk is driven by the transmission structure to be more stable near the protection net to be revised; chinese patent CN109973125B discloses a submarine tunnel laying apparatus, which adopts a track type immersed tube tunnel, a track for fixing the running track of equipment, preventing the equipment from being deviated due to submarine current, and a mounting device carrying immersed tube to be mounted can run on the immersed tube which is not buried already. The modularization of the submarine tunnel building is a development trend of submarine tunnel technical engineering, so that the invention provides a modularized submarine tunnel laying device which is used for modularized laying of submarine tunnels and is an effective means for overcoming challenges in the existing submarine tunnel engineering.

Disclosure of Invention

Aiming at the problems existing in the prior art, the invention provides a modularized laying device for submarine tunnels, which aims to modularize the submarine tunnels of a building, a large number of supports and each section of tunnels can be moved to a shore for casting and manufacturing, so that the requirements of high strength and accurate structure of the supports and the tunnels are easily met, meanwhile, the whole structure of the tunnel is simple and compact, the space is saved, the sealing is safe and reliable, the built submarine tunnels do not prevent the navigation of water ships and the transverse flow of seawater on and below the tunnels, the influence of meteorological conditions such as strong wind and strong fog is avoided, and in addition, the water in an operation area in the submarine tunnels is discharged to a non-operation area of the submarine tunnels by using a propeller and a sealing head, so that the anhydrous operation construction in the submarine tunnel construction process is realized.

The technical scheme adopted by the invention is that the submarine tunnel modularized paving device comprises a submarine tunnel, a propelling machine and a sealing head, wherein the submarine tunnel comprises a plurality of supports arranged along the submarine tunnel, a plurality of tunnels with the same structure, sealing rings arranged between two adjacent tunnels and sealing connection components for connecting the two adjacent tunnels, the supports are uniformly distributed on a seabed surface, the bottoms of the supports are fixedly connected with the seabed surface, the tunnel is a thick-wall pipe body with an oblong cross section, the tunnels are arranged on the supports, the outer side surface of a first end of the tunnel is provided with a conical section along the axial direction of the tunnel, the outer side surface of a second end of the tunnel is provided with a boss and a mounting positioning groove section along the axial direction of the boss, the inner side surfaces of the first end and the second end of the tunnel are symmetrically provided with small-diameter channels, medium-diameter connection sections and large-diameter sealing parts along the axial direction of the tunnel, the small-diameter channels, the medium-diameter connection sections and the large-diameter sealing parts are sequentially arranged in a stepped manner along the radial direction of the tunnel, and the sealing rings are sequentially arranged along the axial direction of the sealing connection components, and the sealing rings are in contact with the sealing rings and can be positioned between the sealing rings and the sealing rings; the utility model provides a sealing head, including the tunnel, the sealing head is located in the tunnel, just the sealing head is located the front end of pushing the machine, the pushing machine includes frame, rack and pinion mechanism, gear lead screw mechanism and leading wheel, rectangular sleeve's side symmetry in the frame is equipped with the leading wheel, just the leading wheel with the inner wall rolling contact in tunnel, rack and pinion mechanism locates in the frame, just the pushing machine is through the drive rack bar rectilinear movement in the rack and pinion mechanism can with the pushing machine support in the tunnel, the gear lead screw mechanism is located the front end of frame, just one end of wire lever in the gear lead screw mechanism with screw threaded connection on the frame in the sealing head, the pushing machine is through the drive screw bar rotation in the gear lead screw mechanism can drive the sealing head is followed tunnel rectilinear movement, and locates each sealed face of flexible seal ring in the frame outside all with the inner wall in tunnel contacts.

Preferably, the support and the tunnel are both composed of a reinforcement cage and concrete pouring, and the support is in a rectangular upright column structure.

Further, the sealing ring is a T-shaped flexible body formed by a radial ring and an axial ring, zigzag sealing protruding parts are symmetrically and uniformly distributed on two sides of the radial ring and two sides of the upper end face of the axial ring respectively, one end of the sealing ring is fixed on the side wall of the large-diameter sealing part in the front section tunnel through a screw, the sealing protruding parts of the first side face of the radial ring and the sealing protruding parts of the upper end face of the first side of the axial ring in the sealing ring are respectively pressed and contacted with the end face of the installation positioning groove section in the front section tunnel and the side wall of the large-diameter sealing part in the front section tunnel, when the frustum section of the rear section tunnel is inserted into the installation positioning groove section of the front section tunnel, and after the front section tunnel and the rear section tunnel are connected through the sealing connecting assembly, the sealing protruding parts of the second side face of the radial ring and the sealing protruding parts of the upper end face of the second side of the axial ring are respectively pressed and contacted with the end face of the frustum section in the rear section tunnel and the side wall of the large-diameter sealing part in the rear section tunnel.

Further, the sealing connection assembly evenly distributed is arranged around the circumference direction of the junction of the two adjacent tunnels, the sealing connection assembly comprises a connecting plate, a spring and a pressing plate, threaded holes are formed in two ends of the connecting plate, the pressing plate is arranged above the connecting plate, the spring is arranged between the connecting plate and the pressing plate, the first end of the spring is propped against the connecting plate, the second end of the spring is propped against the pressing plate, the pressing plate and the connecting plate are respectively arranged on a large-diameter sealing part and a medium-diameter connecting section in the front-section tunnel and the rear-section tunnel, the upper end face of the pressing plate is tightly pressed on the bottom of an axial ring in the sealing ring, two ends of the connecting plate are respectively connected with the front-section tunnel and the rear-section tunnel through bolts, and the inner side face of the connecting plate is coplanar with each side face of a small-diameter driving channel in the tunnel.

Preferably, the rack and pinion mechanism comprises a first engine, a pinion and four groups of rack bars, the first engine is arranged on a rear vertical plate of the frame, an output shaft of the first engine penetrates through the rear vertical plate and is connected with the pinion, four groups of rack bars are arranged around the pinion and are all arranged on a rectangular sleeve of the frame, round bar portions on the rack bars are connected with radial through hole moving pairs on the rectangular sleeve, racks on each group of rack bars are in meshed transmission with the pinion, the four groups of rack bars are respectively perpendicular to the inner wall of the tunnel, one end of each group of rack bars is provided with a supporting disc, and the first engine can drive the rack bars to linearly move through the meshed transmission of the racks, so that the supporting disc is contacted with the inner wall of the tunnel, and the propulsion machine is supported in the tunnel.

Preferably, the gear screw mechanism comprises four groups of gear screws, a second engine and a large gear, the second engine is arranged on a front vertical plate of the frame, an output shaft of the second engine penetrates through the front vertical plate and is connected with the large gear, the four groups of gear screws are arranged on the periphery of the large gear, gears on the gear screws are in meshed transmission with the large gear, one end of a screw lever on the gear screws is connected with the gears, the screw lever penetrates through a circumferential through hole at the front end of the front vertical plate and is supported in the circumferential through hole through a bearing, and the other end of the screw lever is in threaded connection with a screw on the middle frame of the sealing head.

Further, the sealing head comprises a frame, a flexible sealing ring, four nuts and a drainage pump, wherein the frame is formed into a shell structure by a front vertical plate, a rear vertical plate and a shaft sleeve, the flexible sealing ring is arranged on the shaft sleeve in a surrounding mode, each seal of the flexible sealing ring is in contact with the inner wall of the tunnel, the four nuts are uniformly distributed on the rear vertical plate, the drainage pump is arranged between the front vertical plate and the rear vertical plate, a water suction pipe of the drainage pump penetrates through a through hole at the lower end of the rear vertical plate to be communicated with an operation area of the submarine tunnel, a drainage pipe of the drainage pump penetrates through the through hole at the lower end of the front vertical plate to be communicated with a non-operation area of the submarine tunnel, and water in the operation area in the submarine tunnel can be discharged to the non-operation area of the submarine tunnel by the drainage pump.

The invention has the characteristics and beneficial effects that:

1. the modularized laying device for the submarine tunnel provided by the invention enables the submarine tunnel to be constructed in a modularized manner, a large number of supports and structures of each section of tunnel are the same, the submarine tunnel can be moved to the shore to be cast and manufactured, the high strength and the accurate structure requirements of the supports and the tunnel are easily met, meanwhile, the whole structure of the tunnel is simple and compact, the space is saved, the sealing is safe and reliable, the constructed submarine tunnel does not prevent the navigation of a water ship, the transverse flow of seawater flow above and below the tunnel, and the influence of weather conditions such as strong wind and strong fog is avoided.

2. According to the modularized laying device for the submarine tunnel, provided by the invention, the sealing rings can be sleeved and fixed at one end of each tunnel in advance, after the rear-section tunnel is inserted into the front-section tunnel, two adjacent tunnels are fixedly connected through the sealing connection assembly, meanwhile, the sealing surfaces of the sealing rings are provided with the zigzag sealing protruding parts, and after the connection of the two adjacent tunnels is completed, the sealing protruding parts of the sealing surfaces in the sealing rings are in extrusion contact with the end surfaces and the side walls of the front-section tunnel and the rear-section tunnel, so that the sealing process is simple, and the sealing performance of the tunnel connection part can be improved.

3. According to the modularized laying device for the submarine tunnel, provided by the invention, the propelling machine and the sealing head are arranged in the tunnel, the propelling machine can be alternately locked and supported in the tunnel by driving the gear screw mechanism arranged on the propelling machine, and simultaneously, the propelling machine and the sealing head can alternately reciprocate forwards in the tunnel by driving the gear screw mechanism arranged on the propelling machine.

4. According to the modularized laying device for the submarine tunnel, the flexible sealing ring on the sealing head is contacted with the inner wall of the tunnel, so that the submarine tunnel is divided into the operation area and the non-operation area, and meanwhile, water in the operation area in the submarine tunnel can be discharged to the non-operation area of the submarine tunnel through the drainage pump arranged at the sealing head, so that construction is convenient for operators.

Drawings

FIG. 1 is a cross-sectional view of a modular laying apparatus for submarine tunnels according to the invention;

FIG. 2 is a cross-sectional view of a tunnel of the present invention;

FIG. 3 is a cross-sectional view of the seal ring and seal connection assembly connection of the present invention;

fig. 4 is an axial cross-sectional view of the modular laying apparatus for submarine tunnels according to the invention.

The main reference numerals:

a support 1; a tunnel 2; cone section 2-1; 2-2 parts of bosses; installing positioning groove sections 2-3; 2-4 parts of small-diameter driving channels; 2-5 of intermediate diameter connecting sections; 2-6 parts of large-diameter sealing parts; a sealing connection assembly 3, a connection plate 3-1; a spring 3-2; 3-3 of a sealing ring; radial ring 3-3-1; an axial ring 3-3-2; 3-4 of pressing plates; a pusher 4; a frame 4-1; a first engine 4-2; pinion 4-3; four sets of rack bars 4-4; 4-5 parts of a gear screw; 4-5-1 of a wire lever; 4-5-2 of gears; a second engine 4-6; 4-7 of a large gear; 4-8 of guide wheels; a sealing head 5; a frame 5-1; 5-2 of a flexible sealing ring; 5-3 parts of nut; and a drain pump 5-4.

Detailed Description

In order to make the technical content, the structural features, the achieved objects and the effects of the present invention more detailed, the following description will be taken in conjunction with the accompanying drawings.

The invention provides a submarine tunnel modularization laying device, which comprises a submarine tunnel, a propelling machine 4 and a sealing head 5, wherein the submarine tunnel comprises a plurality of supports 1 arranged along the submarine tunnel, a plurality of tunnels 2 with the same structure, a sealing ring 3-3 arranged between two adjacent tunnels 2 and a sealing connection assembly 3 for connecting the two adjacent tunnels 2, the supports 1 are rectangular upright posts formed by reinforcement cages and concrete pouring, the supports 1 are uniformly distributed on the seabed surface, the bottoms of the supports 1 are fixedly poured on the seabed surface, and the tops of the supports 1 are provided with positioning support surfaces and connecting holes.

As shown in fig. 2, the tunnel 2 is a thick-wall pipe body with an oblong cross section formed by a reinforcement cage and concrete pouring, the tunnel 2 is arranged on the support 1, the outer side surface of the first end of the tunnel 2 is provided with a conical section 2-1 along the axial direction of the tunnel 2, the outer side surface of the second end of the tunnel 2 is provided with a boss 2-2 and a mounting positioning groove section 2-3 along the axial direction of the boss 2, the mounting positioning groove section 2-3 is positioned at the inner side of the boss 2-2, the lower end of the boss 2-2 is provided with a mounting table and a connecting hole, the mounting table of the boss 2-2 in the tunnel 2 is placed on the positioning supporting surface at the top of the support 1, the tunnel 2 is fixed on the support 1 through bolts respectively penetrating through the connecting hole at the top of the support 1 and the connecting hole on the tunnel 2, the inner side surfaces of the first end and the second end of the tunnel 2 are symmetrically provided with a small-diameter driving channel 2-4, a medium-diameter connecting section 2-5 and a large-diameter sealing section 2-6 along the axial direction of the tunnel 2-6, and the small-diameter connecting section 2-4, the medium-diameter connecting section 2-5 and the large-diameter sealing section 2-6 are sequentially arranged in a step-shaped manner along the axial direction of the boss 2-6, and the radial positioning pin is inserted into the positioning section 2 and the positioning section 2 in the front section 2.

As shown in fig. 3, the sealing ring 3-3 is arranged between two adjacent tunnels 2, the sealing ring 3-3 is a T-shaped flexible body formed by a radial ring 3-3-1 and an axial ring 3-3-2, the two sides of the radial ring 3-3-1 and the two sides of the upper end face of the axial ring 3-3-2 are symmetrically and uniformly provided with zigzag sealing protruding parts, one end of the sealing ring 3-3 is fixed on the side wall of the large-diameter sealing part 2-6 in the front tunnel 2 through screws, the sealing protruding part of the first side face of the radial ring 3-3-1 in the sealing ring 3-3 and the sealing protruding part of the upper end face of the first side face of the axial ring 3-3-2 are respectively pressed against the end face of the installation locating groove section 2-3 in the front tunnel 2 and the side wall of the large-6 in the front tunnel 2, and when the tapered section 2-1 of the rear tunnel 2 is inserted into the installation locating groove section 2-3 of the front tunnel 2 and the sealing protruding part of the second side face of the radial ring 3-3-1 and the sealing section 2 in the rear tunnel 2 are respectively pressed against the side face of the sealing section 2-2 in the front tunnel 2 through the sealing connecting assembly 3.

As shown in fig. 3, two adjacent tunnels 2 are connected through a sealing connection assembly 3, the sealing connection assembly 3 can compress the sealing ring 3-3, and each sealing surface of the sealing ring 3-3 is respectively contacted with the end surfaces and the side walls of the front section tunnel 2 and the rear section tunnel 2. The sealing connection assembly 3 is uniformly distributed around the circumferential direction of the joint of two adjacent tunnels 2, the sealing connection assembly 3 comprises a connecting plate 3-1, springs 3-2 and pressing plates 3-4, threaded holes are formed in two ends of the connecting plate 3-1, the pressing plates 3-4 are arranged above the connecting plate 3-1, the springs 3-2 are arranged between the connecting plate 3-1 and the pressing plates 3-4, the first ends of the springs 3-2 are abutted against the connecting plate 3-1, the second ends of the springs 3-2 are abutted against the pressing plates 3-4, the pressing plates 3-4 and the connecting plate 3-1 are respectively arranged on a large-diameter sealing part 2-6 and a medium-diameter connecting section 2-5 in the front-section tunnel 2 and the rear-section tunnel 2, the upper end faces of the pressing plates 3-4 are tightly pressed against the bottoms of the axial rings 3-3-2 in the sealing rings 3-3, two ends of the connecting plate 3-1 are respectively connected with the front-section tunnel 2 and the rear-section tunnel 2 through bolts, and the inner sides of the connecting plate 3-1 are coplanar with the sides of the small-diameter channels 2-4 in the tunnels 2.

As shown in fig. 1 and 4, the pusher 4 is disposed in the tunnel 2, and the pusher 4 includes a frame 4-1, a rack-and-pinion mechanism, a gear screw mechanism and a guide wheel 4-8, the frame 4-1 is a shell structure formed by a front vertical plate, a rear vertical plate and a rectangular sleeve, the guide wheel 4-8 is symmetrically disposed on the side surface of the rectangular sleeve in the frame 4-1, the guide wheel 4-8 is in rolling contact with the inner wall of the tunnel 2, the rack-and-pinion mechanism is disposed on the frame 4-1, the pusher 4 is capable of supporting the pusher 4 in the tunnel 2 by driving the rack rod 4-4 in the rack-and-pinion mechanism to move linearly, one end of the screw rod 4-5-1 in the gear screw mechanism is in threaded connection with the nut 5-3 on the frame 5-1 in the sealing head 5, the pusher 4 is capable of driving the sealing head 5 to move linearly along the tunnel 2 by driving the screw rod 4-5-1 in the gear screw mechanism, and the sealing surfaces of the flexible sealing rings 5-2 disposed outside the frame 5-1 are in contact with the inner wall of the tunnel 2.

In a preferred mode, the gear rack mechanism comprises a first engine 4-2, a pinion 4-3 and four groups of rack bars 4-4, the first engine 4-2 is arranged on a rear vertical plate of the frame 4-1, an output shaft of the first engine 4-2 penetrates through the rear vertical plate to be connected with the pinion 4-3, four groups of rack bars 4-4 are arranged around the pinion 4-3, the four groups of rack bars 4-4 are all arranged on a rectangular sleeve of the frame 4-1, round bar parts on the rack bars 4-4 are connected with radial through hole moving pairs on the rectangular sleeve, racks on each group of rack bars 4-4 are in meshed transmission with the pinion 4-3, the four groups of rack bars 4-4 are respectively perpendicular to the inner wall of the tunnel 2, one end of each group of rack bars 4-4 is provided with a supporting disc, and the first engine 4-2 can drive the rack bars 4-4 to move linearly through the meshed transmission of the gears, so that the supporting disc contacts with the inner wall of the tunnel 2, and the propulsion machine 4 is supported in the tunnel 2.

In a preferred mode, the gear screw mechanism comprises four groups of gear screws 4-5, a second engine 4-6 and a large gear 4-7, the second engine 4-6 is arranged on a front vertical plate of the frame 4-1, an output shaft of the second engine 4-6 penetrates through the front vertical plate to be connected with the large gear 4-7, the four groups of gear screws 4-5 are arranged on the periphery of the large gear 4-7, gears 4-5-2 on the gear screws 4-5 are meshed with the large gear 4-7 for transmission, one end of a screw rod 4-5-1 on the gear screws 4-5 is connected with the gear 4-5-2, the screw rod 4-5-1 penetrates through a circumferential through hole at the front end of the front vertical plate and is supported in the circumferential through hole through a bearing, and the other end of the screw rod 4-5-1 is in threaded connection with a screw nut 5-3 on the frame 5-1 in the sealed 5 head.

As shown in fig. 1 and 4, the sealing heads 5 are all arranged in the tunnel 2, the sealing heads 5 are arranged at the front ends of the propelling machine 4, the sealing heads 5 comprise a frame 5-1, a flexible sealing ring 5-2, four nuts 5-3 and a drainage pump 5-4, the frame 5-1 is a shell structure formed by a front vertical plate, a rear vertical plate and a shaft sleeve, the flexible sealing ring 5-2 is circumferentially arranged on the shaft sleeve, each seal of the flexible sealing ring 5-2 is in contact with the inner wall of the tunnel 2, the four nuts 5-3 are uniformly arranged on the rear vertical plate, the drainage pump 5-4 is arranged between the front vertical plate and the rear vertical plate, a water suction pipe of the drainage pump 5-4 is communicated with an operation area of the submarine tunnel through a through hole at the lower end of the rear vertical plate, a drainage pipe of the drainage pump 5-4 is communicated with a non-operation area of the submarine tunnel through a through hole at the lower end of the front vertical plate, and the drainage pump 5-4 can drain water in the operation area of the submarine tunnel to the non-operation area of the submarine tunnel.

In the advancing process of the pusher 4 and the sealing head 5 in the tunnel 2, when the first engine 4-2 drives the pinion 4-3 to rotate positively, the pinion 4-3 drives the four groups of rack bars 4-4 to extend radially through gear-rack meshing, at the moment, a supporting disc at one end of the rack bars 4-4 presses the inner wall of the tunnel 2, the pusher 4 is locked and supported in the tunnel 2, at the moment, the second engine 4-6 rotates positively, the four groups of gear screws 4-5 are driven by the large gear 4-7 to rotate synchronously positively, and the sealing head 5 is pushed to move forward through the four nuts 5-3 on the sealing head 5. When the first engine 4-2 drives the pinion 4-3 to rotate reversely, the pinion 4-3 drives the four groups of rack bars 4-4 to retract radially through the meshing of the racks and the gears, at the moment, a supporting disc at one end of the rack bar 4-4 is separated from the inner wall of the tunnel 2, the guide wheel 4-8 supports the propeller 4 in the tunnel 2, at the moment, the second engine 4-6 rotates reversely, the four groups of gear screws 4-5 are driven to rotate reversely synchronously through the large gear 4-7, and as the friction resistance between the sealing ring group 5-2 of the sealing head 5 and the inner wall of the tunnel 2 is larger than the supporting friction resistance of the guide wheel 4-8 on the propeller 4 in the tunnel 2, the sealing head 5 pulls the propeller 4 to move forwards through the screw nut 5-3.

The above examples are only illustrative of the preferred embodiments of the present invention and are not intended to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art to the technical solution of the present invention should fall within the scope of protection defined by the claims of the present invention without departing from the spirit of the present invention.

Claims

1. A modularized laying device for submarine tunnel is characterized by comprising a submarine tunnel, a propeller and a sealing head,

the submarine tunnel comprises a plurality of supports arranged along the submarine tunnel, a plurality of tunnels with the same structure, sealing rings arranged between two adjacent tunnels and sealing connection assemblies for connecting the two adjacent tunnels, wherein the supports are uniformly distributed on the seabed surface, the bottoms of the supports are fixedly connected with the seabed surface, the tunnels are thick-wall pipe bodies with long circular cross sections, the tunnels are arranged on the supports, the outer side surfaces of the first ends of the tunnels are provided with conical sections along the axial direction of the conical sections, the outer side surfaces of the second ends of the tunnels are provided with bosses and mounting positioning groove sections along the axial direction of the outer side surfaces of the first ends of the tunnels, the mounting positioning groove sections are positioned on the inner sides of the bosses, the inner side surfaces of the first ends of the tunnels and the second ends of the tunnels are symmetrically provided with small-diameter driving channels, medium-diameter connecting sections and large-diameter sealing sections along the axial direction of the sealing rings, the small-diameter driving channels, the medium-diameter connecting sections and the large-diameter sealing sections are sequentially arranged in a stepped shape along the radial direction of the tunnels, the conical sections of the rear sections are inserted into the mounting positioning groove sections of the front section of the tunnels and are radially connected with the positioning pins along the axial directions of the positioning grooves, the positioning pin, the mounting positioning groove sections of the front sections of the tunnels are radially positioned along the axial directions, the positioning groove sections of the positioning pin, and the sealing ring sections are connected with the sealing rings, and the adjacent sealing rings are connected with the sealing rings, and the sealing rings are connected with the sealing rings in a sealing connection mode, and between adjacent sealing surfaces can be connected with the sealing surfaces through the sealing surfaces;

the utility model provides a sealing head, including the tunnel, the sealing head is located in the tunnel, just the sealing head is located the front end of pushing the machine, the pushing machine includes frame, rack and pinion mechanism, gear lead screw mechanism and leading wheel, rectangular sleeve's side symmetry in the frame is equipped with the leading wheel, just the leading wheel with the inner wall rolling contact in tunnel, rack and pinion mechanism locates in the frame, just the pushing machine is through the drive rack bar rectilinear movement in the rack and pinion mechanism can with the pushing machine support in the tunnel, the gear lead screw mechanism is located the front end of frame, just one end of wire lever in the gear lead screw mechanism with screw threaded connection on the frame in the sealing head, the pushing machine is through the drive screw bar rotation in the gear lead screw mechanism can drive the sealing head is followed tunnel rectilinear movement, and locates each sealed face of flexible seal ring in the frame outside all with the inner wall in tunnel contacts.

2. The submarine tunnel modular paving apparatus according to claim 1, wherein the support and tunnel are each constructed of a rebar cage and concrete casting, and the support is in the form of a rectangular column.

3. The submarine tunnel modular paving device according to claim 1, wherein the sealing ring is a T-shaped flexible body formed by a radial ring and an axial ring, zigzag sealing protruding portions are symmetrically and uniformly distributed on two sides of the radial ring and two sides of an upper end face of the axial ring respectively, one end of the sealing ring is fixed on a side wall of a large-diameter sealing portion in the front tunnel through a screw, the sealing protruding portions of a first side face of the radial ring and an upper end face of the first side face of the axial ring in the sealing ring are respectively pressed and contacted with an end face of a positioning groove section in the front tunnel and a side wall of a large-diameter sealing portion in the front tunnel, when a frustum section of the rear tunnel is inserted into the positioning groove section of the front tunnel, and after the front tunnel and the rear tunnel are connected through the sealing connecting assembly, the sealing protruding portions of a second side face of the radial ring and the sealing protruding portions of the upper end face of the second side of the axial ring are respectively pressed and contacted with the end face of the large-diameter sealing portion in the rear tunnel.

4. The submarine tunnel modularization laying device according to claim 3, wherein the sealing connection assemblies are uniformly distributed around the circumferential direction of the connection position of the two adjacent tunnels, the sealing connection assemblies comprise a connection plate, springs and pressing plates, threaded holes are formed in two ends of the connection plate, the pressing plates are arranged above the connection plate, the springs are arranged between the connection plate and the pressing plates, the first ends of the springs are abutted to the connection plate, the second ends of the springs are abutted to the pressing plates, the pressing plates and the connection plate are respectively arranged on a large-diameter sealing part and a medium-diameter connecting section in the front-section tunnel and the rear-section tunnel, the upper end faces of the pressing plates are respectively pressed against the bottom of an axial ring in the sealing ring, two ends of the connection plate are respectively connected with the front-section tunnel and the rear-section tunnel through bolts, and the inner side faces of the connection plate are coplanar with all sides of a small-diameter driving channel in the tunnel.

5. The submarine tunnel modular paving device according to claim 1, wherein the rack-and-pinion mechanism comprises a first engine, a pinion and four groups of rack bars, the first engine is arranged on a rear vertical plate of the frame, an output shaft of the first engine penetrates through the rear vertical plate to be connected with the pinion, the four groups of rack bars are arranged around the pinion, the four groups of rack bars are all arranged on a rectangular sleeve of the frame, round bar portions on the rack bars are connected with radial through hole moving pairs on the rectangular sleeve, racks on each group of rack bars are in meshed transmission with the pinion, the four groups of rack bars are respectively perpendicular to the inner wall of the tunnel, one end of each group of rack bars is provided with a supporting disc, and the first engine can drive the rack bars to linearly move through the meshed transmission of the racks, so that the supporting disc is in contact with the inner wall of the tunnel, and the propulsion machine is supported in the tunnel.

6. The submarine tunnel modular paving device according to claim 5, wherein the gear screw mechanism comprises four groups of gear screws, a second engine and a large gear, the second engine is arranged on a front vertical plate of the frame, an output shaft of the second engine penetrates through the front vertical plate to be connected with the large gear, the four groups of gear screws are arranged on the periphery of the large gear, gears on the gear screws are meshed with the large gear for transmission, one end of a screw lever on the gear screws is connected with the gears, the screw rod penetrates through a circumferential through hole at the front end of the front vertical plate and is supported in the circumferential through hole through a bearing, and the other end of the screw lever is connected with a screw thread on a frame in the sealing head.

7. The submarine tunnel modular paving device according to claim 6, wherein the sealing head comprises a frame, a flexible sealing ring, four nuts and a drainage pump, the frame is a shell structure formed by a front vertical plate, a rear vertical plate and a shaft sleeve, the flexible sealing ring is circumferentially arranged on the shaft sleeve, each seal of the flexible sealing ring is in contact with the inner wall of the tunnel, the four nuts are uniformly arranged on the rear vertical plate, the drainage pump is arranged between the front vertical plate and the rear vertical plate, a water suction pipe of the drainage pump penetrates through a through hole at the lower end of the rear vertical plate to be communicated with an operation area of the submarine tunnel, a drainage pipe of the drainage pump penetrates through a through hole at the lower end of the front vertical plate to be communicated with a non-operation area of the submarine tunnel, and the drainage pump can drain water in the operation area of the submarine tunnel to the non-operation area of the submarine tunnel.