The construction technology of immersed tube sinking and locking backfill
Technical field
The invention belongs to immersed tube tunnel technical field of construction more particularly to a kind of immersed tube sinking and locking backfill integrated ship and
Construction technology.
Background technique
Currently, the main construction method of subaqueous tunnel is prefabricated tube section sinking method, the tunnel for using the method to build is heavy
Pipe tunnel.In immersed tube tunnel construction, usually first with sinking equipment and aided positioning system by the accurate sinking of immersed tube to foundation trench
In, the position of positioning system locking immersed tube is recycled, sand is backfilled into the foundation trench of immersed tube two sides using backfill equipment, it is heavy to complete
The locking of pipe backfills, and makes immersed tube is firm to be installed in foundation trench.However, this existing immersed tube sinking and locking backfilling process, need
It will be by positioning at least twice, complicated construction technique;And two sets of equipment of sinking ship and dedicated backfill ship is needed to complete construction, ship
Schedule between oceangoing ship is complicated, long construction period, and operating efficiency is low.Therefore, how to simplify immersed tube sinking and locking backfill is applied
Work technique, raising construction efficiency are a current technical problems urgently to be solved.
Summary of the invention
The present invention is asked for the above-mentioned existing immersed tube sinking technology low with locking backfill complicated construction technique, construction efficiency
Topic proposes a kind of immersed tube sinking and locking backfill integrated ship and construction technology, integrates immersed tube sinking and locking backfill, simplify
Immersed tube tunnel construction technology, improves construction efficiency.
In order to achieve the above object, the technical solution adopted by the present invention are as follows:
An aspect of of the present present invention provides a kind of immersed tube sinking and locking backfill integrated ship, including catamaran, the binary
Ship includes the first hull and the second hull disposed in parallel, and the top of first hull and the second hull is connected by deck bridge
It connects;To sinking immersed tube between first hull and the second hull, and it is located at below the deck bridge;The deck bridge with
The sinking equipment for sinking immersed tube is provided between immersed tube;Between first hull and the second hull, a left side for the immersed tube
Right two sides are separately provided for the backfill conduit of backfill sand, and the backfill conduit is connected to the bottom of the deck bridge vertically
Portion, and pass through the deck bridge.
Preferably, one end that the backfill conduit stretches out above the deck bridge is connected with loading hopper.
Preferably, the length of the backfill conduit is adjustable.
Preferably, the quantity of the backfill conduit is more, the more backfill conduits are distributed in a left side for the immersed tube
Right two sides.
Preferably, being provided with the loop wheel machine for installing and removing the backfill conduit on the deck bridge.
Preferably, the sinking equipment includes the hanger rope being connected between the deck bridge and immersed tube, and it is set to
Elevating mechanism on the deck bridge, for controlling the hanger rope lifting.
Preferably, being provided with positioning system on the catamaran.
Immersed tube sinking described in any of the above-described technical solution and locking are utilized another aspect provides a kind of
Backfill the construction technology that integrated ship carries out immersed tube sinking and locking backfill, comprising the following steps:
Sinking immersed tube: one will be lifted on using the sinking equipment being arranged on integrated ship by positioning system auxiliary positioning
The accurate sinking of immersed tube below ship is into foundation trench;
Locking backfill: after sinking immersed tube, at least two haul ship difference berthing are to the left and right sides of integrated ship, by described
The conveying equipment carried on haul ship, the backfill conduit conveying sand being arranged on integrated ship, sand draw through the backfill conduit
It leads and accurately falls into the foundation trench at left and right sides of the immersed tube, the effect for surveying locking backfill is swept using measuring and controlling equipment, when backfill sand
Height meet the requirements after, stop backfill, the haul ship makes a return voyage.
Preferably, further including installing the backfill by the loop wheel machine being arranged on integrated ship before backfilling sand step
The step of conduit, further includes the steps that removing the backfill conduit by the loop wheel machine after stopping backfill.
Compared with prior art, the advantages and beneficial effects of the present invention are:
1, immersed tube sinking provided by the invention and locking backfill integrated ship and construction technology, collection immersed tube sinking and locking backfill
In one, the sinking of immersed tube can be completed by the sinking equipment of setting and is locked back by the backfill conduit completion of setting
It fills out, improves construction efficiency, shorten construction period, reduce construction cost;
2, immersed tube sinking provided by the invention and locking backfill integrated ship and construction technology, it is only necessary to once be positioned, both
The sinking and locking backfill construction of achievable immersed tube, are not necessarily to multiple bearing, construction technology is simpler.
Detailed description of the invention
Fig. 1 is the main view of immersed tube sinking provided by the embodiment of the present invention and locking backfill integrated ship;
Fig. 2 is the top view of immersed tube sinking provided by the embodiment of the present invention and locking backfill integrated ship;
Use when Fig. 3 is using immersed tube sinking provided by the embodiment of the present invention and locking backfill integrated ship sinking immersed tube
State diagram;
Fig. 4 is use when backfilling sand using immersed tube sinking provided by the embodiment of the present invention and locking backfill integrated ship
State diagram;
In above each figure: 1, the first hull;2, the second hull;3, deck bridge;4, immersed tube;5, conduit is backfilled;6, charging leakage
Bucket;7, loop wheel machine;8, hanger rope;9, elevating mechanism;10, positioning system;11, foundation trench;12, haul ship;13, conveying equipment.
Specific embodiment
In the following, the present invention is specifically described by illustrative embodiment.It should be appreciated, however, that not into one
In the case where step narration, element, structure and features in an embodiment can also be advantageously incorporated into other embodiments
In.
In the description of the present invention, it should be noted that the orientation of the instructions such as term "left", "right", "upper", "lower" or
Positional relationship is to be merely for convenience of description of the present invention and simplification of the description based on attached positional relationship shown in FIG. 1, rather than indicate
Or imply that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot understand
For limitation of the present invention.In addition, term " first ", " second " are used for description purposes only, it is not understood to indicate or imply
Relative importance.
As shown in Figure 1, the one side of the embodiment of the present invention provides a kind of immersed tube sinking and locking backfill integrated ship, including
Catamaran, the catamaran include the first hull 1 disposed in parallel and the second hull 2, the first hull 1 and the second hull 2 it is upper
Portion is connected by deck bridge 3;To sinking immersed tube 4 between the first hull 1 and the second hull 2, and it is located under deck bridge 3
Side;The sinking equipment for sinking immersed tube 4 is provided between deck bridge 3 and immersed tube 4;Between first hull 1 and the second hull 2,
The left and right sides of immersed tube 4 is separately provided for the backfill conduit 5 of backfill sand, and backfill conduit 5 is connected to deck bridge 3 vertically
Bottom, and pass through deck bridge 3.In use, by the sinking equipment can by the accurate sinking of immersed tube 4 into foundation trench, meanwhile, setting
The foundation trench of 4 left and right sides of immersed tube is locked naturally in the backfill conduit 5 on the catamaran, positioned at 4 left and right sides of immersed tube, is no longer needed to
Sand can accurately be inserted in the foundation trench of 4 left and right sides of immersed tube by the guidance of backfill conduit 5, realize the lock of immersed tube by secondary positioning
Fixed backfill.
For the ease of sand is imported in backfill conduit 5, one end of backfill 5 overhanging deck bridge of conduit 3 top be connected with into
Funnel 6.By the guidance of loading hopper 6, sand can be directly entered in backfill conduit 5, when can avoid loading sand, due to returning
The nozzle for filling out conduit 5 is smaller and the problem of cause sand to be scattered, be conducive to keep the environmental sanitation on catamaran.
In order to guarantee locking backfill accuracy of placement, the length of backfill conduit 5 is set as adjustable.Backfill sand
When, its nozzle underwater is made by elongation backfill conduit 5 until avoidable sand is when falling due to water impact at foundation trench
Caused drop point offset.Meanwhile the length by adjusting backfill conduit 5, it is applicable to the construction of different water depth.
In order to improve locking backfill efficiency, the quantity of backfill conduit 5 is more, as shown in Fig. 2, backfill conduit 5 is exemplary
It is 6,6 backfill conduits 5 are distributed in the left and right sides of immersed tube 4, realize the uniform backfill of 4 left and right sides sand of immersed tube.
Due to backfill conduit 5 installed and removed according to the usage requirement, for the ease of backfill conduit 5 installation with tear open
It removes, as shown in Figure 1, being provided with the loop wheel machine 7 for installing and removing backfill conduit 5 on deck bridge 3.When backfilling sand, pass through
Loop wheel machine 7 is installed on conduit 5 is backfilled on the catamaran, and removes backfill conduit 5 after backfill, then through loop wheel machine 7, in this way
The space of the catamaran can be saved, also can avoid, which leads to backfill due to water impact during navigation conduit 5, damages
The problem of.
As shown in Figure 1, the sinking equipment includes the hanger rope 8 being connected between deck bridge 3 and immersed tube 4, and it is set to
Elevating mechanism 9 on deck bridge 3, for controlling the lifting of hanger rope 8.The sinking equipment that this hanger rope 8 is matched with elevating mechanism 9,
Structure is simple, occupies little space, and easy to operate.It is understood that those skilled in the art can also be using other conjunctions
The sinking equipment of reason.
In addition, being additionally provided with positioning system 10 for the ease of positioning on the catamaran, realizing to the real-time of catamaran
Positioning positions the sinking of immersed tube more acurrate.
The another aspect of the embodiment of the present invention, which additionally provides, a kind of utilizes immersed tube sinking described in any of the above-described embodiment
The construction technology of immersed tube sinking and locking backfill is carried out with locking backfill integrated ship, comprising the following steps:
Sinking immersed tube: one will be lifted on using the sinking equipment being arranged on integrated ship by 10 auxiliary positioning of positioning system
The accurate sinking of immersed tube 4 below body ship is into foundation trench 11;
Locking backfill: after sinking immersed tube 4, at least two haul ships 12 distinguish berthing to the left and right sides of integrated ship, pass through
The conveying equipment 13 carried on haul ship 12, the backfill conduit 5 being arranged on integrated ship convey sand, and sand is through backfilling conduit 5
Guidance is accurately fallen into the foundation trench 11 of 4 left and right sides of immersed tube, and the effect for surveying locking backfill is swept using measuring and controlling equipment, when backfill sand
Height meet the requirements after, stop backfill, haul ship 12 makes a return voyage.
It in a preferred embodiment, further include being installed by the loop wheel machine 7 being arranged on integrated ship before locking refilling step
The step of backfilling conduit 5 further includes the steps that removing backfill conduit 5 by loop wheel machine 7 after stopping backfill.In the present embodiment,
Backfill conduit 5 is installed and removed according to the needs of use, the space of the catamaran can be saved, also can avoid navigating by water
Cause to backfill the problem of conduit 5 damages due to water impact in journey.