CN104878774A - Movable cofferdam open-cutting method - Google Patents
Movable cofferdam open-cutting method Download PDFInfo
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- CN104878774A CN104878774A CN201510156649.7A CN201510156649A CN104878774A CN 104878774 A CN104878774 A CN 104878774A CN 201510156649 A CN201510156649 A CN 201510156649A CN 104878774 A CN104878774 A CN 104878774A
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- 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
- E02D29/045—Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location line; Methods of making them
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- 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
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/02—Restraining of open water
- E02D19/04—Restraining of open water by coffer-dams, e.g. made of sheet piles
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- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Lining And Supports For Tunnels (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Abstract
The invention relates to a movable cofferdam open-cutting method. The method includes the steps of 1, enclosing a cofferdam; 2, cutting out earth in a construction mass (1) to build a tunnel; 3, removing a removal member (2); 4, building a newly-built member (3); and 5, repeating the steps 2 to 4 until completion of tunnel construction. The steps 2 to 4 can be synchronously performed in random order. The method has the advantages that construction period can be shortened, construction cost can be lowered, route traffic is unaffected in wide waters, long-range or extra-long-range tunnel construction is allowed, excavation area is smaller, excavated earth is less, and the environmental influence is low.
Description
Technical field
What the present invention relates to is a kind of portable cofferdam cut and cover method that can be used for constructing tunnel, belongs to technical field of tunnel construction.
Background technology
Existing tunnel usual construction period of constructing is long, costly, larger on the impact of environment.Therefore, shorten construction period, reduce construction cost, improve construction environment, reduce the problem demanding prompt solution that ambient influnence is tunnel industry always.
The construction method of existing tunnel has: cofferdam cut and cover method, pipe jacking method, New Austrian Tunneling Method, immersed tunnelling method, shield method etc.
Cofferdam cut and cover method, as shown in Figure 1, adopt multistage sheet pile to isolate water and soil, sheet pile is ladder-like arranged, and uses horizontal support to bear the horizontal force of water and soil to sheet pile between the sheet pile of both sides, tunnel.This kind of cofferdam method adopts the mode of cast in situs usually, and construct loaded down with trivial details, curing period is long, and floor space is large, large to ambient influnence.When excavating lake Tunnel, cofferdam cut and cover method digs from two sides toward centre, and the soil upwards of movement excavated out is large, and need to pile up the soil excavating out in land mass region.
Pipe jacking method is a kind of tunneling formula construction method.The shortcoming of this method is major diameter, overlength jacking, correction difficulty, and is only suitable for small linear type tunnel.
New Austrian Tunneling Method is under the prerequisite of the carrying usefulness utilizing country rock itself to have, and adopt blasting technique, carry out the construction method of full face excavation, New Austrian Tunneling Method is only suitable for building tunnel in rock.
Immersed tunnelling method is that one section of tunnel entirety is transported to installation place through the water surface, and sinking is arranged in the foundation trench dredged one by one, and immersed tunnelling method is that platform carries out bottom and operates on the water, constructional difficulties, greatly affected by environment, and a very huge precasting yard will be built on bank, with high costs.
The advantage of shield method is the bottom tunneling of shield machine at network of underground, can not destroy network of underground in theory, can not affect traffic.But because urban subway tunnel normally builds a platform every a segment distance in reality, when building platform, must carry out cut and cover method, therefore shield method still affects traffic.When excavating subaqueous tunnel, the top of shield method is on land, and the soil upwards of movement excavated out is large, and needs to pile up the soil excavating out in land mass region.
Summary of the invention
What the present invention proposed is a kind of portable cofferdam cut and cover method that can be used for constructing tunnel, its object is intended to the above-mentioned defect overcome existing for prior art, solve the technical barrier how building tunnel under shallow water, land or middle deep water conditions, realize plurality of advantages of the present invention.
Technical solution of the present invention: portable cofferdam cut and cover method, is characterized in that the method comprises the steps:
1) weir body, is surrounded;
2), cut out the earth of constructing in body, build tunnel;
3), body is removed;
4), newly-built body is built;
5), step 2 is repeated) to 4), until complete constructing tunnel; Described step 2), 3), 4) in no particular order, also can synchronously carry out.
Advantage of the present invention: the present invention can shorten construction period; Reduce construction cost; Do not affect air route at Open sea area to pass through; Can realize long distance, over distance constructing tunnel, excavation area is less, and the earth volume of excavation is less, little to ambient influnence.
Accompanying drawing explanation
Fig. 1 is the weir body section figure of existing cofferdam cut and cover method.
Fig. 2 is the schematic diagram of portable cofferdam cut and cover method when constructing.
Fig. 3 is the sectional drawing of E-E in Fig. 2.
Fig. 4 is the top view after surrounding weir body.
Fig. 5 .1 is the axis side view after surrounding weir body.
Fig. 5 .2 is the view after extracting the I template stake 4 of removing body 2 left end.
Fig. 5 .3 be extract the B profiling end face removing body 2 left end cut off 6b and II template stake 7 after view.
B profiling end face is cut off 6b to put into the II template stake 7 of constructing between body back segment 1-1 and construction body leading portion 1-2 by Fig. 5 .4, and construction body back segment 1-1 becomes the view of new dismounting body 2.
Fig. 5 .5 is the view of the front end press-in I template stake 4 of building body 3.
Fig. 5 .6 is that the full end face of A extracted in II template stake 7 between construction body 3 and construction body leading portion 1-2 cuts off 5a, and former construction body leading portion 1-2 becomes construction body back segment 1-1, and former construction body 3 becomes the view of new construction body leading portion 1-2.
Fig. 6 is I template stake front view.
Fig. 7 is I template stake top view.
Fig. 8 is the partial enlarged drawing at A place in Fig. 7.
Fig. 9 is I template stake lateral view.
Figure 10 is I template stake axis side view.
Figure 11 is the force diagram of I template stake.
Figure 12 is the first concatenation unit schematic diagram.
Figure 13 is the second concatenation unit schematic diagram.
Figure 14 is the axis side view of II template stake.
Figure 15 is the top view of II template stake.
Figure 16 is the partial enlarged drawing at B place in Figure 15.
Figure 17 is the lateral view of II template stake.
Figure 18 is the force diagram cutting off the II template stake of 6 with full end face partition 5 or profiling end face.
Figure 19 is the II template stake top view cutting off 5 or profiling end face partition 6 with full end face.
Figure 20 is the partial enlarged drawing at C place in Figure 19.
Figure 21 is the II template stake front view with full end face partition 5.
Figure 22 is the II template stake front view with profiling end face partition 6.
Figure 23 is the front view that full end face cuts off 5.
Figure 24 is the axis side view that full end face cuts off 5.
Figure 25 is the front view that profiling end face cuts off 6.
Figure 26 is the upward view that total cross-section cuts off 5 or profiling end face partition 6.
Figure 27 is the partial enlarged drawing at D place in Figure 26.
Figure 28 is the front view of sheet pile transport carriage 8.
Figure 29 is the schematic diagram that sheet pile transport carriage 8 carries I template stake 4 or II template stake 7.
Figure 30 is the upward view of sheet pile transport carriage 8.
Figure 31 is first and second wheel group structure position view in sheet pile transport carriage 8.
Figure 32 is the close-up schematic view in Figure 31.
Figure 33 is third and fourth wheel group structure position view in sheet pile transport carriage 8.
Figure 34 is the close-up schematic view in Figure 33.
Figure 35 is the front view that end face cuts off lift cart 9.
Figure 36 is the lateral view that end face cuts off lift cart 9.
Figure 37 is the front view of end tail extractor 10.
Figure 38 is the lateral view of end tail extractor 10.
Figure 39 is the lateral view of termination pile press 11.
Figure 40 is the front view of termination pile press 11.
Figure 41 is the front view of box body 13.
Figure 42 is the top view of box body 13.
Figure 43 is the weir body top view surrounded in the cut and cover method of creep formula cofferdam.
Figure 44 is F-F cross sectional view in Figure 43.
Figure 45 is the weir body front view surrounded in the cut and cover method of creep formula cofferdam.
Figure 46 is the original state schematic diagram removing body 2 in the cut and cover method of creep formula cofferdam.
Figure 47 is construct in the cut and cover method of creep formula cofferdam body 1 and the view of removing body 2 isolation.
Figure 48 puts down the full end face of A removing body 2 both sides to cut off 5a and B full end face partition 5b in the cut and cover method of creep formula cofferdam, promote the view that the profiling end face removed on the left of body 2 cuts off 6.
Figure 49 removes the view that body 2 extracts gradually in the cut and cover method of creep formula cofferdam.
Figure 50 removes the force diagram in body 2 floating-upward process.
Figure 51 be remove in the body of creep formula cofferdam body 2 extract after view.
Figure 52 is the original state schematic diagram building body 3.
Figure 53 is the schematic diagram after building body 3 sinking.
Figure 54 is the cross sectional view of Figure 53.
Figure 55 builds the pressure schematic diagram suffered by body 3.
Figure 56 is the schematic diagram after construction body 3 is pressed into soil.
Figure 57 builds body 3 to become new construction body 1 schematic diagram.
Figure 58 is the structure composition schematic diagram in modularization tunnel 14.
In figure, 1 is construction body, 1-1 is construction body back segment, 1-2 is construction body leading portion, 2 is remove body, 3 is build body, 4 is I template stakes, 4-1 is weight body, 4-2 is auxiliary sheet pile, 4-3 is sheet pile, 4-4 is supporting traverse, 4-5 is walking track, 4-6 is kinge-joint knot, 4-7 is mounting groove, 4-8 is the first fill area, 4-9 is kinge-joint knot, 5 is that full end face cuts off, 5-1 cuts off, 5-2 is cuboid, 5-3 is the second fill area, 6 is that profiling end face cuts off, 6-1 cuts off, 6-2 is cuboid, 6-3 is profiling limit, 7 is II template stakes, 8 is sheet pile transport carriages, 8-1 is transhipment frame, 8-2 is sheet piling, 8-3 is road wheel, 8-3-1 is the first wheels, 8-3-2 is the second wheels, 8-3-3 is third round group, 8-3-4 is fourth round group, 8-3-5 is the 5th wheels, 8-3-6 is the 6th wheels, 8-3-7 is the 7th wheels, 8-3-8 is the 8th wheels, 8-4 is breach, 9 is that end face cuts off lift cart, 9-1 cuts off to pull out pressure device, 9-2 is frame, 9-3 is that end face cuts off lift cart road wheel, 9-4 is that end face cuts off lift cart bottom support, 10 is end tail extractors, 10-1 is pile pulling frame, 10-2 is pile pulling device, 10-3 is Traverse Displacement Unit, 10-4 is end tail extractor road wheel, 10-5 is end tail extractor bottom support, 11 is termination pile presss, 11-1 is piling machine frame, 11-2 is pile pressing device, 11-3 is desilting flattening device, 11-4 is termination pile press road wheel, 11-5 is termination pile press bottom support, 11-6 is lifting Traverse Displacement Unit, 12 is that side cuts off, 13 is box bodys, 13-1 is cabin body, 13-2 is that left end cuts off, 13-3 is that right-hand member cuts off, 13-4 cuts off lifting gear, 13-5 is closed chamber, 14 is modularization tunnels, 14-1 is cavity left part, 14-2 is cavity right part, 14-3 is well floor, 14-4 is midfeather, 14-5 is left cover, 14-6 is right cover, 14-7 is middle cover, 14-9 is that level is cut off.
Detailed description of the invention
Portable cofferdam cut and cover method, comprises the steps:
1) weir body, is surrounded;
2), cut out the earth of constructing in body 1, build tunnel;
3), body 2 is removed;
4), newly-built body 3 is built;
5), step 2 is repeated) to 4), until complete constructing tunnel; Described step 2), 3), 4) in no particular order, also can synchronously carry out.
When using portable cofferdam cut and cover method to build tunnel, the state of weir body may be comprise: 1., construction body 1 and remove body 2,2., construction body 1 and build body 3,3., construction body 1, remove body 2 and build body 3, namely removing body 2 and build body 3 and not necessarily exist simultaneously.
Wherein the two sides of construction body 1, dismounting body 2 and construction body 3 are that side cuts off 12,
Being that A profiling end face cuts off 6a between described construction body 1 and dismounting body 2, is that the full end face of A cuts off 5a between construction body 1 and construction body 3;
Described construction body 1 cuts off 5a and A profiling end face partition 6a by side partition 12, the full end face of A and surrounds;
Described construction body 1 comprises construction body back segment 1-1 and is II template stake 7 between construction body leading portion 1-2, construction body back segment 1-1 and construction body leading portion 1-2, and described side cuts off 12 and is made up of several I template stake 4 and/or II template stake 7 splicing;
Described dismounting body 2 cuts off 12 by the side on construction body 1 left side, A profiling end face cuts off 6a and B profiling end face and cuts off 6b and surround;
Described construction body 3 cuts off 5a and B full end face partition 5b by the side partition 12 on the right of construction body 1, the full end face of A and surrounds.
The method of operating that described step 3) removes body 2 is: extract the I template stake 4 and II template stake (7) of removing body 2 left end, after tunnel is built into construction body leading portion 1-2 place, the B profiling end face removing body 2 left end is cut off 6b extract, and B profiling end face is cut off in II template stake 7 between 6b press-in construction body back segment 1-1 and construction body leading portion 1-2, now, construction body back segment 1-1 becomes new body 2, the B profiling end face partition 6b that removes and becomes A profiling end face partition 6a;
The method of operating that described step 4) builds newly-built body 3 is: be pressed into I template stake 4 and II template stake 7 in the front end (i.e. right-hand member) of building body 3, the full end face of A extracted in II template stake 7 between construction body 3 and construction body leading portion 1-2 cuts off 5a, now, build body 3 and become construction body leading portion 1-2, former construction body leading portion 1-2 becomes construction body back segment 1-1, complete for A end face partition 5a and II template stake 7 are pressed into the front end being pressed into I template stake 4, form newly-built body 3, now, the full end face of A cuts off 5a becomes B full end face partition 5b, if newly-built body 3 has water, then should discharge the water in newly-built body 3, complete the construction of newly-built body 3.
The I template stake 4 that described step 3) and step 4) are extracted can for the described construction body 3 of construction, the described B profiling end face extracted cuts off 6b can for forming new dismounting body 2, described II template stake 7 of extracting can for the described construction body 3 of construction, described in the full end face of A extracted cut off 5a can for the new construction body 3 of construction.
Described I template stake 4, comprise weight body 4-1, sheet pile 4-3, supporting traverse 4-4, wherein weight body 4-1 is symmetrically arranged in the both sides of supporting traverse 4-4, wherein sheet pile 4-3 is arranged in weight body 4-1 lower end, there is concatenation unit at the two ends of I template stake 4, I template stake 4 and I template stake 4 or II template stake 7, when splicing, form the first fill area 4-8, can fill the filler for sealing in the 4-8 of this first fill area between concatenation unit and concatenation unit.
Described I template stake 4 also comprises auxiliary sheet pile 4-2, walking track 4-5, this walking track 4-5 is arranged on weight body 4-1 top, this auxiliary sheet pile 4-2 is arranged on the lower end of weight body 4-1, and when all insertion puts in place in described I template stake 4, auxiliary sheet pile 4-2 also inserts earth.
Two supporting traverse 4-4 are had in described II template stake 7, a mounting groove 4-7 is had between two supporting traverse 4-4, full end face can be placed in mounting groove 4-7 and cut off 5 or profiling end face partition 6, this full end face cuts off 5, comprise cuboid 5-2, cut off 5-1, wherein cut off the bottom that 5-1 is arranged on cuboid 5-2.Profiling end face cuts off 6 and comprises cuboid 6-2, partition 6-1, and wherein cut off the bottom that 6-1 is arranged on cuboid 6-2, profiling limit 6-3 is arranged at the bottom cutting off 6-1, and described profiling limit 6-3 is close to both sides and the top in tunnel.
Described full end face cuts off 5 or profiling end face partition 6 and II template stake 7 respectively has linkage unit in junction, forms the second fill area 5-3, can fill the filler for sealing in described second fill area 5-3 between this linkage unit and linkage unit.
Described transport I template stake 4, full end face cuts off 5, profiling end face partition 6 and II template stake 7 use sheet pile transport carriage 8 to transport, described sheet pile transport carriage 8, comprise transhipment frame 8-1, sheet piling 8-2, road wheel 8-3, described sheet piling 8-2 symmetry is arranged on the both sides of transhipment frame 8-1, described road wheel 8-3 is arranged on the lower end of transhipment frame 8-1, described sheet piling 8-2 is for supporting I template stake 4, II template stake 7, full end face cuts off 5 or profiling end face partition 6, described road wheel 8-3 can side cut off 12 I template stake 4 and II template stake 7 on walking track 4-5 on walk, the centre of described transhipment frame 8-1 also has breach 8-4, described full end face partition 5 or profiling end face cut off 6 by the top arrival bottom of breach 8-4 from sheet pile transport carriage 8, or from the arrival top, bottom of sheet pile transport carriage 8.
Described extract or be pressed into full end face cut off 5 and profiling end face cut off 6 by end face cut off lift cart 9 extract and be pressed into, described end face cuts off lift cart 9, its structure comprises partition and pulls out pressure device 9-1, frame 9-2, end face cuts off lift cart road wheel 9-3, end face cuts off lift cart bottom support 9-4, described partition pulls out the top that pressure device 9-1 is arranged on frame 9-2, described end face cuts off the bottom that lift cart road wheel 9-3 is arranged on frame 9-2, end face partition lift cart bottom support 9-4 can be equipped with in the bottom that this end face cuts off the frame 9-2 of lift cart 9, described end face cuts off lift cart road wheel 9-3 and can the walking track 4-5 in I template stake 4 and II template stake 7 walk, described end face cuts off lift cart bottom support 9-4 when carrying out extracting operation, can be supported on soil.
Described I template stake 4, profiling end face partition 6 and II template stake 7 are that use side tail extractor 10 is extracted, described end tail extractor 10 comprises pile pulling frame 10-1, pile pulling device 10-2, Traverse Displacement Unit 10-3, end tail extractor bottom support 10-5, described pile pulling device 10-2 is arranged on Traverse Displacement Unit 10-3, and described Traverse Displacement Unit 10-3 is arranged on the top of pile pulling frame 10-1; Described end tail extractor bottom support 10-5 is arranged on the bottom of pile pulling frame 10-1, and described end tail extractor bottom support 10-5 can be supported on soil.
It is use termination pile press 11 to be pressed into that described I template stake 4, full end face cut off 5, II template stake 7, described termination pile press 11, comprise piling machine frame 11-1, pile pressing device 11-2, desilting flattening device 11-3, termination pile press road wheel 11-4, termination pile press bottom support 11-5 and lifting Traverse Displacement Unit 11-6, described termination pile press road wheel 11-4 is arranged on the bottom of piling machine frame 11-1, and described termination pile press road wheel 11-4 can the walking track 4-5 in described I template stake 4 and II template stake 7 walk; Described lifting Traverse Displacement Unit 11-6 and pile pressing device 11-2 is arranged on the top of piling machine frame 11-1; Described termination pile press bottom support 11-5 is arranged on the bottom of piling machine frame 11-1, and described termination pile press bottom support 11-5 can be supported on soil; Described desilting flattening device 11-3 is arranged on the front lower portion of piling machine frame 11-1.
Described step 1), surround weir body, the weir body that this surrounds is in water body central authorities, from this weir body toward water body two sides tunneling, the weir body surrounded can be used as the precasting yard in produce modular tunnel 14, the earth excavated can be deposited in around precasting yard and form tourist island, after tunnel builds up, precasting yard can be used as parking lot.
As shown in Figure 58, described modularization tunnel 14 is made up of cavity left part 14-1, cavity right part 14-2, well floor 14-3, midfeather 14-4, left cover 14-5, right cover 14-6, middle cover 14-7 and level partition 14-9.
Technical scheme of the present invention is further described below in conjunction with accompanying drawing:
Be applicable to the portable cofferdam cut and cover method of the constructing tunnel under shallow water and land condition, comprise the steps:
1) weir body is surrounded;
The weir body surrounded for constructing tunnel comprises construction body 1, remove body 2 and build body 3, described construction body 1 is the weir body at constructing tunnel place, 12 are cut off by side, the full end face of A cuts off 5a(as Figure 23, shown in Figure 24) and A profiling end face partition 6a(is as shown in figure 25) surround, described dismounting body 2 is the weir bodies in demolishing process, 12 are cut off by the side on construction body 1 left side, A profiling end face cuts off 6a and B profiling end face partition 6b and surrounds, described construction body 3 is the weir bodies in building course, 12 are cut off by the side on the right of construction body 1, the full end face of A cuts off 5a and B full end face partition 5b and surrounds, described construction body 1, the two sides of removing body 2 and construction body 3 are that side cuts off 12, that A profiling end face cuts off 6a between described construction body 1 and dismounting body 2, that the full end face of A cuts off 5a between described construction body 1 and construction body 3, construction body 1 comprises construction body back segment 1-1 and construction body leading portion 1-2, II template stake 7 between construction body back segment 1-1 and construction body leading portion 1-2, described side cuts off 12 by several I template stake 4(as Fig. 6, shown in Fig. 7) and/or II template stake 7(as Figure 14, shown in Figure 15) splicing composition, the quantity of described I template stake 4 and II template stake 7 is arranged according to the needs of practice of construction,
2) cut out the earth in construction body 1, build tunnel.
This step method for optimizing is: cut out the earth in construction body 1, the tunnel module of building at precasting yard is transported in built tunnel and puts in place, carry out building tunnel.
3) body 2 is removed:
For convenience of description, suppose to build body 3 motionless, original state is as shown in Fig. 5 .1; Extract the I template stake 4 and II template stake (7) of removing body 2 left end, as shown in Fig. 5 .2; After described tunnel is built into construction body leading portion 1-2 place, the B profiling end face removing body 2 left end is cut off 6b and extracts, as shown in Fig. 5 .3; And the II template stake 7 of B profiling end face partition 6b being put between construction body back segment 1-1 and construction body leading portion 1-2, now, construction body back segment 1-1 becomes new dismounting body 2, as shown in Fig. 5 .4;
4) newly-built body 3 is built:
For convenience of description, suppose to remove body 2 motionless, original state is as shown in Fig. 5 .4; Building front end press-in I template stake 4 and the II template stake 7 of body 3, as shown in Fig. 5 .5; The full end face of A extracted in II template stake 7 between construction body 3 and construction body leading portion 1-2 cuts off 5a, and now, build body 3 and become construction body leading portion 1-2, former construction body leading portion 1-2 becomes construction body back segment 1-1, as shown in Fig. 5 .6; Complete for A end face partition 5a and II template stake 7 are pressed into the front end being pressed into I template stake 4, form new construction body 3, now, the full end face of A cuts off 5a becomes B full end face partition 5b, if newly-built body 3 has water, then should discharge the water built in body 3, as shown in Fig. 5 .1; Complete the construction of building body 3.
5) repeating said steps 2) to step 4), until complete constructing tunnel.
In step 3), the I template stake 4 of extracting can for the described construction body 3 of construction, and the B profiling end face extracted cuts off 6b can for forming new dismounting body 2, and the II template stake 7 of extracting can for the described construction body 3 of construction;
In step 4), the full end face of the A extracted cuts off 5a can for building new construction body 3.
I template stake 4, as shown in Fig. 6 ~ Figure 10, the effect of I template stake 4 is the water and soils for isolating its both sides, to carry out the construction in soil excavation and tunnel.The force diagram of I template stake 4 as shown in figure 11.
I template stake 4, its structure comprises weight body 4-1, sheet pile 4-3, supporting traverse 4-4, described weight body 4-1 is symmetrically arranged in the both sides of supporting traverse 4-4, described sheet pile 4-3 is arranged in weight body 4-1 lower end, there is concatenation unit at the two ends of described I template stake 4, described I template stake 4 and I template stake 4, when splicing, form the first fill area 4-8(as shown in Figure 12 and Figure 13 between concatenation unit and concatenation unit), the filler for sealing can be filled in described first fill area 4-8.
Described I template stake 4 also comprises auxiliary sheet pile 4-2, and this auxiliary sheet pile 4-2 is arranged on the lower end of weight body 4-1, and when all insertion puts in place in described I template stake 4, auxiliary sheet pile 4-2 also inserts earth.
Described I template stake 4 also comprises walking track 4-5, and described walking track 4-5 is arranged on described weight body 4-1 top.Described walking track 4-5 has four.
The Main Function of described weight body 4-1 makes to act on the downward power of its plan vertical by the soil that is delivered to bottom it, for sheet pile transport carriage 8(thereon as shown in figure 29), end face cuts off lift cart 9(as shown in figure 35), end tail pile pulling dolly 10(as shown in figure 37), termination piling dolly 11(as shown in figure 39) etc. job platform is provided.
The effect of described sheet pile 4-3 is: the water and soil of isolation I template stake 4 both sides, so that the construction carrying out soil excavation and tunnel.
The effect of supporting traverse 4-4 is: water pressure and sheet pile 4-3 for bearing its both sides weight body 4-1 transmission transmit the pressure of coming.
The effect of described auxiliary sheet pile 4-2 is: 1., between auxiliary sheet pile 4-2 and sheet pile 4-3 fill filler, for solving the problem of water-bed face injustice, 2., strengthens stagnant water effect.
The effect of walking track 4-5 is: for sheet pile transport carriage 8(as shown in figure 29), end face cuts off lift cart 9(as shown in figure 35), end tail extractor 10(as shown in figure 37), termination pile press 11(is as shown in figure 39) walking track is provided, walk for sheet pile transport carriage 8 in two, inner side, two, outside cuts off lift cart 9 for end face, end tail extractor 10, termination pile press 11 is walked, such layout is convenient to sheet pile transport carriage 8 and is entered end face partition lift cart 9, end tail extractor 10, the below of termination pile press 11, then switch over operation is carried out to I template stake 4 and II template stake 7.
The effect of concatenation unit be 1., for sealing, 2., in order to form the first fill area 4-8, fill the filler being used for sealing in the first fill area 4-8 after, concatenation unit can prevent filler to run off, and filler can strengthen stagnant water effect further, if there is a small amount of infiltration, then solved by the method such as to draw water.For this reason, this application discloses the structure of two kinds of concatenation units, as shown in Figure 12 and Figure 13.
The structure of the first concatenation unit is: as shown in figure 12, and I template stake 4 bilateral symmetry is provided with elongated two secondary kinge-joint knot 4-6, and after two secondary kinge-joint knot 4-6 are hinged, the side of two secondary kinge-joint knot 4-6 and adjacent two I templates stake 4 surrounds the first fill area 4-8 jointly.
The structure of the second concatenation unit is: as shown in figure 13, and I template stake 4 bilateral symmetry is provided with elongated two secondary kinge-joint knot 4-9, and two secondary kinge-joint knot 4-9 can dock, and the side of two secondary kinge-joint knot 4-9 and adjacent two I templates stake 4 surrounds the first fill area 4-8 jointly.
The scheme forming the first fill area 4-8 can have multiple.
I template stake 4 advantage is the stake of I template is an overall structure, and make traditional stair-stepping sheet pile and horizontal support be combined into an overall structure, excavation area is less, and the earth volume of excavation is less.
Described II template stake 7, as shown in Figure 14 ~ Figure 17, II template stake 7 is cut off 5(as shown in figure 21 to place full end face with the difference between the effects of I template stake 4) and profiling end face cut off 6(as shown in figure 22), bear water and soil pressure and cut off 6 pressure to full end face partition 5 and profiling end face, its force diagram as shown in figure 18.
II template stake 7 is roughly the same with the architectural feature of I template stake 4, also weight body 4-1 is comprised, sheet pile 4-3, supporting traverse 4-4, concatenation unit, difference is that described supporting traverse 4-4 has two, a mounting groove 4-7 is had between described two supporting traverse 4-4, full end face can be placed in described mounting groove 4-7 and cut off 5(as shown in figure 23) or profiling end face partition 6(is as shown in figure 25), described II template stake 7 and full end face cut off 5 or profiling end face cut off 6 and respectively have linkage unit in junction, after described full end face partition 5 or profiling end face partition 6 put into mounting groove 4-7, the second fill area 5-3 is formed between linkage unit and linkage unit, as shown in figure 20, the filler for sealing can be filled in described second fill area 5-3.
The structure of described linkage unit can be kinge-joint knot 4-6.
In described mounting groove 4-7, linkage is installed, as bolt connects.
Weight body 4-1 in II template stake 7, sheet pile 4-3, supporting traverse 4-4, concatenation unit are identical with the effect of I template stake 4 corresponding component.
The effect of mounting groove 4-7 is: be placed in II template stake 7 in order to full end face partition 5 or profiling end face are cut off 6, and be connected in II template stake 7 by linkage by full end face partition 5 or profiling end face partition 6, form an overall structure.Full end face partition 5 or profiling end face cut off 6 and put into mounting groove 4-7, after filling the filler being used for sealing, can strengthen stagnant water effect, as shown in figure 20 in the second fill area 5-3.
The effect of linkage described full end face can be cut off 5 or profiling end face partition 6 and II template stake 7 to link together, and its embodiment can be adopt the mode of bolt to connect.
The effect of linkage unit is to form the second fill area, fill the filler being used for sealing in the second fill area after, linkage unit can prevent filler to run off, and filler can be used for sealing, if there is a small amount of infiltration, then solved by the method such as to draw water.
Described full end face cuts off 5 and cuts off 6 with profiling end face, and as shown in Figure 21 ~ Figure 27, full end face cuts off 5 for isolating the water and soil of construction body 1 front end; Profiling end face cuts off 6 for isolating the water and soil of construction body 1 rear end.
Described full end face cuts off 5, its structure comprises cuts off 5-1, cuboid 5-2, described partition 5-1 is arranged on the bottom of cuboid 5-2, described full end face partition 5 and II template stake 7 respectively have linkage unit in junction, after described full end face partition 5 puts into the mounting groove 4-7 of II template stake 7, form the second fill area 5-3 between linkage unit and linkage unit, as shown in figure 20, the filler for sealing in described second fill area 5-3, can be filled.
Described profiling end face partition 6 is roughly the same with the structure that full end face cuts off 5, as shown in figure 22, comprises and cuts off 6-1, cuboid 6-2, and difference is that profiling limit 6-3 is arranged at the bottom of profiling end face partition 6, and described profiling limit 6-3 is close to both sides and the top of tunnel outline.
In order to reduce pressing-in force when full end face partition 5 or 6 press-in of profiling end face partition, full end face partition 5 or profiling end face cut off 6 and can be made up of some sections of splicings.
The effect cutting off 5-1 or partition 6-2 is the water and soil of isolation construction body 1 front end or rear end.
The effect of cuboid 5-2 or cuboid 6-2 is: 1., for ease of cutting off 5-1 or cutting off extracting or being pressed into of 6-1, namely when extracting or be pressed into, provide uniform withdrawal force or pressing-in force; 2., 5-1 or the horizontal force action that cuts off suffered by 6-1 will be cut off on the supporting traverse 4-4 of II template stake 7; If when 3. cuboid 5-2 or cuboid 6-2 is cavity, increases buoyancy during by the mode of draining, water-filling for extracting or increase gravity for during press-in.
The effect of profiling limit 6-3 is in order to profiling end face cuts off 6 when isolating the water and soil of construction body rear end, avoids producing with tunnel interfering.
Described sheet pile transport carriage 8, as shown in Figure 28 ~ Figure 34, the major function of sheet pile transport carriage 8 is:
1., transport I template stake 4, II template stake 7, full end face partition 5 or profiling end face and cut off 6;
2., carry profiling end face partition 6, and cut off lift cart 9(as shown in Figure 35, Figure 36 with end face) with the use of, profiling end face is cut off the 6 II template stakes 7 of putting into construction body leading portion 1-2 and constructing between body back segment 1-1;
3., carry II template stake 7, and with end face cut off lift cart 9 with the use of, the full end face in the II template stake 7 of building between body 3 and construction body 1 is cut off 5 and extracts in II template stake 7.
Described sheet pile transport carriage 8, its structure comprises transhipment frame 8-1, sheet piling 8-2, road wheel 8-3, described sheet piling 8-2 symmetry is arranged on the both sides of transhipment frame 8-1, described road wheel 8-3 is arranged on the lower end of transhipment frame 8-1, described sheet piling 8-2 is for supporting I template stake 4, II template stake 7, full end face cuts off 5, or profiling end face cuts off 6, described road wheel 8-3 can side cut off 12 I template stake 4 and II template stake 7 on walking track 4-5 on walk, the centre of described transhipment frame 8-1 also has breach 8-4, described full end face partition 5 or profiling end face cut off 6 by the top arrival bottom of breach 8-4 from sheet pile transport carriage 8, or from the arrival top, bottom of sheet pile transport carriage 8.
The effect of sheet piling 8-2 supports sheet pile 4-3, also can support and cut off 5-1 and cut off 6-1.
The effect of road wheel 8-3 is in order to sheet pile transport carriage 8 moves.
The walking principle of described road wheel 8-3 is: road wheel is made up of (as shown in Figure 30 ~ Figure 34) eight groups of liftable wheels, when sheet pile transport carriage by height walk track to low walking orbit transfer time, first walking makes first group of wheels 8-3-1 and the 5th group of wheels 8-3-5 disengaging high walking track enter directly over low walking track, then first group of wheels 8-3-1 stretches out downwards with the 5th group of wheels 8-3-5 until contact low walking track, sheet pile transport carriage walks on, enter directly over low walking track until the 3rd group of wheels 8-3-3 and the 7th group of wheels 8-3-7 departs from high walking track, then the second wheels 8-3-2 and the 6th group wheels 8-3-6, 3rd group of wheels 8-3-3 stretches out downwards with the 7th group of wheels 8-3-7 until contact low walking track, sheet pile transport carriage walks on, enter after directly over low walking track when the 4th group of wheels 8-3-4 and the 8th group of wheels 8-3-8 departs from high walking track, 4th group of wheels 8-3-4 stretches out downwards until contact low walking track with the 8th group of wheels 8-3-8.So far sheet pile transport carriage is completed by the transition of height walking track to low walking track.When sheet pile transport carriage walks orbit transfer by low walking track to height, otherwise in like manner.On traffic direction, the spacing between any two groups of wheels be greater than walking track gap, make sheet pile transport carriage can walking track on smooth transition.
The effect of breach 8-4 be make the full end face in the upper (lower) portion of sheet pile transport carriage 8 cut off 5 or profiling end face cut off 6 enter it under (on) portion.
End face cuts off lift cart 9, and as shown in Figure 35, Figure 36, end face cuts off the Main Function of lift cart 9 and is: 1., extract the full end face built between body 3 and construction body leading portion 1-2 in II template stake 7 and cut off 5; 2., profiling end face is cut off the II template stake 7 of putting between construction body back segment 1-1 and construction body leading portion 1-2 of 6.
Total cross-section partition 5 and profiling end face cut off 6 and are pressed into by end face partition lift cart 9 or extract.
Described end face cuts off lift cart 9, its structure comprises partition and pulls out pressure device 9-1, frame 9-2, end face cuts off lift cart road wheel 9-3, end face cuts off lift cart bottom support 9-4, described partition pulls out the top that pressure device 9-1 is arranged on frame 9-2, described end face cuts off the bottom that lift cart road wheel 9-3 is arranged on frame 9-2, end face partition lift cart bottom support 9-4 can be equipped with in the bottom that this end face cuts off the frame 9-2 of lift cart 9, described end face cuts off lift cart road wheel 9-3 and can the walking track 4-5 in I template stake 4 and II template stake 7 walk, described end face cuts off lift cart bottom support 9-4 when carrying out extracting operation, can be supported on soil.
It can be that screw mandrel etc. has the functional part extracting and be pressed into character that described partition pulls out pressure device 9-1, and its effect extracts or be pressed into full end face to cut off 5 and profiling end face partition 6.
The effect of described end face partition lift cart road wheel 9-3 and walking principle are with sheet pile transport carriage 8.
The effect that described end face cuts off lift cart bottom support 9-4 is delivered to acting on the power that end face to cut off on lift cart vertically downward on soil.
End tail extractor 10, as shown in Figure 37, Figure 38, the Main Function of end tail extractor 10 is that I template stake 4, II template stake 7, profiling end face are cut off 6 and extract, and be placed on sheet pile transport carriage 8.
End tail extractor 10, its structure comprises pile pulling frame 10-1, pile pulling device 10-2, Traverse Displacement Unit 10-3, end tail extractor road wheel 10-4, end tail extractor bottom support 10-5, and described pile pulling device 10-2 and Traverse Displacement Unit 10-3 is arranged on the top of pile pulling frame 10-1; Described end tail extractor road wheel 10-4 is arranged on the bottom of pile pulling frame 10-1, and described end tail extractor road wheel 10-4 can the walking track 4-5 in described I template stake 4 and II template stake 7 walk; Described end tail extractor bottom support 10-5 is arranged on the bottom of pile pulling frame 10-1, and described end tail extractor bottom support 10-5 can be supported on soil.
Described pile pulling device 10-2 can be that cucurbit, hoist engine, chain, screw mandrel etc. have the functional part extracted with descent property erecting by overhang.
Described Traverse Displacement Unit 10-3 is similar to the functional part that driving etc. has transverse shifting.
Described end tail extractor road wheel 10-4, the end face that the effect of end tail extractor bottom support 10-5 cuts off lift cart 9 with end face cut off lift cart road wheel 9-3, end face cuts off lift cart bottom support 9-4.
I template stake 4,6, the II template stake 7 of profiling end face partition are extracted in the effect of described pile pulling device 10-2.
The effect of described Traverse Displacement Unit 10-3 be pile pulling device 10-2 is extracted I template stake 4, profiling end face cut off 6, II template stake 7 be placed on sheet pile transport carriage 8.
Termination pile press 11, as shown in Figure 39, Figure 40, the Main Function of termination pile press 11 is: 1., by I template stake 4, full end face cut off 5, II template stake 7 and take off with traversing from sheet pile transport carriage 8, and I template stake 4, full end face are cut off 5, II template stake 7 and be pressed into desired location; 2. mud and the smooth construction basis in front, is cleared up.
Termination pile press 11, its structure comprises piling machine frame 11-1, pile pressing device 11-2, desilting flattening device 11-3, termination pile press road wheel 11-4, termination pile press bottom support 11-5 and lifting Traverse Displacement Unit 11-6, described termination pile press road wheel 11-4 is arranged on the bottom of piling machine frame 11-1, and described termination pile press road wheel 11-4 can the walking track 4-5 in described I template stake 4 and II template stake 7 walk; Described lifting Traverse Displacement Unit 11-6 and pile pressing device 11-2 is arranged on the top of piling machine frame 11-1; Described termination pile press bottom support 11-5 is arranged on the bottom of piling machine frame 11-1, and described termination pile press bottom support 11-5 can be supported on soil; Described desilting flattening device 11-3 is arranged on the front lower portion of piling machine frame 11-1.
Described pile pressing device 11-2 can be piling, the isobaric pilework of weight.
The structure of pile pressing device 11-2 comprises spindle gear and hydraulic cylinder, spindle gear is arranged on piling machine frame 11-1, hydraulic cylinder is arranged on the lower end of spindle gear, during piling, I template stake 4 is first pressed downward to the stroke of a hydraulic cylinder by hydraulic cylinder, and then hydraulic cylinder is released the stroke of a hydraulic cylinder downwards by spindle gear, and oil cylinder is synchronously retracted, repeat above-mentioned two steps, until I template stake 4 be pressed into place.
The end face that the effect of described termination pile press road wheel 11-4, termination pile press bottom support 11-5 cuts off lift cart 9 with end face cuts off lift cart road wheel 9-3, end face cuts off lift cart bottom support 9-4.
The effect of shown lifting Traverse Displacement Unit 11-6 takes off I template stake 4,5, the II template stake 7 of full end face partition from sheet pile transport carriage 8.
The effect of described pile pressing device 11-2 is that I template stake 4, full end face are cut off 5, II template stake 7 and be pressed into desired location.
The effect of described desilting flattening device 11-3 is the mud in cleaning pressing machine front, termination, smooth construction basis.
To extract and the using method of transporting I template stake 4 is: end tail extractor 10 drive to remove body 2 rear end I template stake 4 above, discharge the water in the weight body 4-1 of I template stake 4, to reduce withdrawal force, I template stake 4 is extracted by pile pulling device 10-2, sheet pile transport carriage 8 drives to the right-hand member below end tail extractor 10, I template stake 4 is placed on sheet pile transport carriage 8 by Traverse Displacement Unit 10-3, and sheet pile transport carriage 8 carries I template stake 4 and is transported to forward termination pile press 11 place.
In like manner, extract and transport II template stake 7.
In like manner, extract and transport profiling end face partition 6.
In like manner, extract and transport the II template stake 7 with profiling end face partition 6.
The method of transporting in the II template stake 7 of profiling end face partition 6 and press-in is constructed between body back segment 1-1 and construction body leading portion 1-2 is: end face partition lift cart 9 drives to the top of II template stake 7, sheet pile transport carriage 8 carries profiling end face partition 6 and drives to below end face partition lift cart 9, and partition pulls out pressure device 9-1 and hangs profiling end face partition 6 and put it in II template stake 7.
To extract and the method that the full end face transported in the II template stake 7 of building between body 3 and construction body leading portion 1-2 cuts off 5 is: end face cuts off the top that lift cart 9 drives to II template stake 7, partition pulls out pressure device 9-1, by breach 8-4, full end face partition 5 is extracted sheet pile transport carriage 8, and sheet pile transport carriage 8 carries full end face partition 5 and transports forward.
To transport and the method being pressed into II template stake 7 is: sheet pile transport carriage 8 carries II template stake 7 and drives in termination pile press 11, II template stake 7 is taken off from sheet pile transport carriage 8 by lifting Traverse Displacement Unit 11-6, and be placed into the bottom of pile pressing device 11-2, water is filled with in the weight body 4-1 of II template stake 7 and the cuboid 5-2 of full end face partition 5, II template stake 7 is pressed into soil, until desired location by pile pressing device 11-2.
In like manner, transport and be pressed into I template stake 4.
In like manner, transport and be pressed into full end face partition 5.
In like manner, transport and be pressed into the II template stake 7 with full end face partition 5.
Under the condition of land, the more shallow situation of groundwater table is equal to shallow water conditions, the condition that groundwater table is darker, without the need to profiling end face cut off 6 and full end face cut off 5.Therefore, portable cofferdam cut and cover method can be constructed under the condition of land equally.
(B), as shown in Figure 41 ~ Figure 57, in being suitable for, the creep formula cofferdam cut and cover method of deep water conditions, comprise the steps:
1) surround weir body: as shown in figure 43, use the box body 13 of back-off to surround construction body 1 successively, remove body 2 and build body 3;
2) cut out the earth in construction body 1, build tunnel;
3) dismounting body 2: for convenience of description, as shown in figure 46, dismounting body 2 is through with construction body 1, and tunnel has completed the construction of removing body 2 place for assumed initial state, and as shown in figure 46, step comprises for the total cross-section partition 5 in dismounting body 2 and the state of profiling partition 6:
1. isolation construction body 1 and dismounting body 2:
As shown in the arrow of Figure 47, the profiling end face on the left of press-in construction body 1 cuts off 6, fills around cutting off 6 to profiling end face, makes construction body 1 and remove body 2 to isolate;
2. extract and remove body 2, comprising:
A puts down the full end face of A removing body 2 both sides and cuts off 5a and B full end face partition 5b, as shown in figure 48;
B promotes the profiling end face removed on the left of body 2 and cuts off 6, as shown in figure 48;
C discharges water in the body 13-1 of cabin, passes into gas to dismounting body 2 bottom, to make suffered by dismounting body 2 power upwards be greater than downward power (removing the force diagram of body 2 as shown in figure 50), thus dismounting body 2 is floated;
D removes in body 2 floating-upward process, and the full end face of A of both sides cuts off 5a and B full end face partition 5b also constantly to be put down (as shown in figure 49) thereupon, removes body 2, as shown in figure 51 until extract;
4) build body 3, step comprises:
1. build body 3 to dock with construction body 1: will build body 3 and be transported to the right side of body 1 of construct, and construction body 3 is docked with the concatenation unit of body 1 of constructing;
2. sink to building body 3: as shown in the arrow of Figure 52, put down the full end face of A building body 3 left and right sides and cut off 5a and B full end face partition 5b; Discharge the air in the body 13-1 of cabin, and to water-filling in the body 13-1 of cabin, build body 3 sink gradually and tentatively insert soil, make cabin body 13-1, side cuts off 12, left end cuts off 13-2, right-hand member cuts off 13-3 and Zinc fractions closed chamber 13-5, the state as shown in Figure 53, Figure 54;
3. build body 3 and be pressed into soil layer: discharge the water built in body 3 bottom closed chamber 13-5, make to be partially formed negative pressure in closed chamber 13-5, due to build body 3 downward make a concerted effort much larger than build body 3 upwards make a concerted effort, force diagram as shown in fig. 55, therefore, in the process of draining, build body 3 and be progressively pressed into soil layer under downward force action, until desired location, state as shown by the circuit diagram of figure 56;
4. body 3 is built through with construction body 1: continue the water of discharging closed chamber and box body 13 junction, promote the A full end face partition 5a built on the left of body 3 and cut off 5b with the full end face of B on the right side of construction body 1, build body 3 through with construction body 1, as shown in Figure 57 arrow, now, build body 3 and become new construction body 1.
5) step 2 is repeated) to 4), until complete constructing tunnel.
Step 3) is removed in the step of body, and the dismounting body 2 after disengaging can be used as new construction body 3 and reuses.
As shown in Figure 41 ~ Figure 45, the box body 13 of back-off, its structure comprises cabin body 13-1, side cuts off 12, left end cuts off 13-2, right-hand member cuts off 13-3 and sealing device, described cabin body 13-1 is arranged on the top that side cuts off 12, left end cuts off 13-2 and right-hand member cuts off the two ends that 13-3 is arranged on described cabin body 13-1 respectively, described cabin body 13-1, side cuts off 12, seal between left end partition 13-2 and right-hand member partition 13-3, in described left end partition 13-2, the full end face of A is installed and cuts off 5a(as Figure 23, shown in Figure 24) and profiling end face partition 6(as Figure 25, shown in Figure 26), in right-hand member partition 13-3, the full end face of B is installed and cuts off 5b, the full end face of described A cuts off 5a, the top that the full end face of B cuts off 5b and profiling end face partition 6 is respectively provided with a set of partition lifting gear 13-4, the two ends of described box body 13 are also provided with the concatenation unit for docking between box body 13, described concatenation unit is provided with sealing device, when the full end face partition 5 at box body 13 two ends puts down, cabin body 13-1, side cuts off 12, left end cuts off 13-2 and right-hand member cuts off the box body 13 that 13-3 surrounds described back-off jointly.
It is sheet piles that described side cuts off 12.
The effect of box body 13 is the construction spaces built to form tunnel.
The effect of cabin body 13-1 increases the buoyancy of box body 13 by inflation or increased the gravity of box body 13 by water filling.
The effect of left end partition 13-2 is the water and soil for isolating box body 13 rear end.
The effect of right-hand member partition 13-3 is the water and soil for isolating box body 13 front end.
The effect cutting off lifting gear 13-4 promotes or put down the full end face of A to cut off the full end face partition 5b of 5a, B and profiling end face partition 6.
The effect of sealing device makes to seal between box body 13 and box body 13.
Claims (14)
1. portable cofferdam cut and cover method, is characterized in that the method comprises the steps:
1) weir body, is surrounded;
2), cut out the earth of constructing in body, build tunnel;
3), body is removed;
4), newly-built body is built;
5), step 2 is repeated) to 4), until complete constructing tunnel; Described step 2), 3), 4) in no particular order, also can synchronously carry out.
2. portable cofferdam according to claim 1 cut and cover method, is characterized in that described step 1) surrounds weir body, and this weir body comprises construction body, removes body and build body,
Wherein construct body, to remove body and build the two sides of body be that side cuts off,
Being that A profiling end face cuts off between described construction body and dismounting body, is that the full end face of A cuts off between construction body and construction body;
Described construction body is cut off by side, the full end face of A cuts off and A profiling end face partition surrounds;
Described construction body comprises construction body back segment and construction body leading portion, is II template stake between construction body back segment and construction body leading portion, and described side cuts off and is made up of the stake of several I template and/or II template stake splicing;
Described dismounting body is cut off by the side on the body left side of constructing, A profiling end face cuts off and B profiling end face partition surrounds;
Described construction body is cut off by the side on the right of body of constructing, the full end face of A cuts off and the full end face partition of B surrounds.
3. portable cofferdam according to claim 1 cut and cover method, it is characterized in that the method for operating of described step 3) dismounting body is: extract the stake of I template and II template stake of removing body left end, after tunnel is built into construction body leading portion place, the B profiling end face removing body left end is cut off and extracts, and B profiling end face is cut off the II template stake of putting between construction body back segment and construction body leading portion, now, construction body back segment becomes newly removes body, and B profiling end face cuts off becomes A profiling end face partition.
4. portable cofferdam according to claim 1 cut and cover method, it is characterized in that the method for operating that described step 4) builds newly-built body is: building front end press-in I template stake and the II template stake of body, the full end face of A extracted in II template stake between construction body and construction body leading portion cuts off, now, build body and become construction body leading portion, former construction body leading portion becomes construction body back segment, complete for A end face partition and II template stake press-in are pressed into the right-hand member of I template stake, form newly-built body, now, the full end face of A cuts off becomes the full end face partition of B, if former B full end face partition becomes A full end face partition, newly-built body has water, then should discharge the water in newly-built body, complete the construction of newly-built body.
5. the portable cofferdam cut and cover method according to claim 3 or 4, it is characterized in that the I template stake of extracting in described step 3) can for the described construction body of construction, the described B profiling end face extracted cuts off can for forming new dismounting body, described II template stake of extracting can for the described construction body of construction, described in the full end face of A extracted cut off can for the new construction body of construction.
6. portable cofferdam according to claim 2 cut and cover method, it is characterized in that the stake of described I template, it is characterized in that comprising weight body, sheet pile, supporting traverse, wherein weight body is symmetrically arranged in the both sides of supporting traverse, wherein sheet pile is arranged in weight body lower end, and there is concatenation unit at the two ends of I template stake, and the stake of I template and the stake of I template or II template stake are when splicing, form the first fill area between concatenation unit and concatenation unit, the filler for sealing in this first fill area, can be filled.
7. portable cofferdam according to claim 6 cut and cover method, it is characterized in that described I template stake also comprises auxiliary sheet pile and walking track, walking track installation is at weight body top, auxiliary sheet pile is arranged on the lower end of weight body, when the stake of described I template all insert put in place time, auxiliary sheet pile also inserts earth.
8. portable cofferdam according to claim 2 cut and cover method, it is characterized in that the difference of described II template stake and the stake of I template is that II template stake comprises two supporting traverses, a mounting groove is had between two supporting traverses, full end face can be placed in mounting groove cut off or profiling end face partition, this full end face cuts off and comprises cuboid, cut off, wherein cut off the bottom being arranged on cuboid, profiling end face cuts off and comprises cuboid, cut off, wherein cut off the bottom being arranged on cuboid, profiling limit is arranged at the bottom cut off, described profiling limit is close to both sides and the top in tunnel, described full end face cuts off or profiling end face cuts off and II template stake respectively has linkage unit in junction, the second fill area is formed between this linkage unit and linkage unit, the filler for sealing can be filled in described second fill area.
9. portable cofferdam according to claim 2 cut and cover method, it is characterized in that the stake of described I template, full end face cuts off, profiling end face cuts off and the transport of II template stake uses sheet pile transport carriage to transport, described sheet pile transport carriage, comprise transhipment frame, sheet piling, road wheel, described sheet piling symmetry is arranged on the both sides of transhipment frame, described road wheel is arranged on the lower end of transhipment frame, described sheet piling is for supporting the stake of I template, II template stake, full end face cuts off, or profiling end face cuts off, described road wheel can the walking track in the I template stake of side partition and II template stake be walked, the centre of described transhipment frame also has breach, described full end face cuts off or profiling end face cuts off by the top arrival bottom of breach from sheet pile transport carriage, or from the arrival top, bottom of sheet pile transport carriage.
10. the portable cofferdam cut and cover method according to claim 3 or 4, extract described in it is characterized in that or be pressed into full end face cut off and profiling end face cut off by end face partition lift cart extract and be pressed into, described end face cuts off lift cart, comprise partition and pull out pressure device, frame, end face cuts off lift cart road wheel, described partition pulls out the top that pressure device is arranged on frame, described end face cuts off the bottom that lift cart road wheel is arranged on frame, end face partition lift cart bottom support can be equipped with in the bottom that this end face cuts off the frame of lift cart, described end face cuts off lift cart road wheel and can the walking track in the stake of I template and II template stake be walked, described end face cuts off lift cart bottom support when carrying out extracting operation, can be supported on soil.
11. portable cofferdam according to claim 3 cut and cover methodes, it is characterized in that the stake of described I template, profiling end face cuts off and II template stake is that use side tail extractor is extracted, described end tail extractor comprises pile pulling frame, pile pulling device, Traverse Displacement Unit, end tail extractor bottom support, and described pile pulling device and Traverse Displacement Unit are arranged on the top of pile pulling frame; Described end tail extractor bottom support is arranged on the bottom of pile pulling frame, and described end tail extractor bottom support can be supported on soil.
12. portable cofferdam according to claim 4 cut and cover methodes, it is characterized in that the stake of described I template, full end face cuts off, II template stake is the pile press press-in of use termination, described termination pile press, comprise piling machine frame, pile pressing device, desilting flattening device, termination pile press road wheel, termination pile press bottom support and lifting Traverse Displacement Unit, described termination pile press road wheel is arranged on the bottom of piling machine frame, and described termination pile press road wheel can the walking track in the stake of described I template and II template stake be walked; Described lifting Traverse Displacement Unit and pile pressing device are arranged on the top of piling machine frame; Described termination pile press bottom support is arranged on the bottom of piling machine frame, and described termination pile press bottom support can be supported on soil; Described desilting flattening device is arranged on the front lower portion of piling machine frame.
13. portable cofferdam according to claim 1 cut and cover methodes, it is characterized in that described construction body, remove body and build the box body that body is back-off, the box body of this back-off comprises cabin body, side cuts off, left end cuts off and right-hand member cuts off, described cabin body is arranged on the top that side cuts off, left end cuts off and right-hand member cuts off the two ends being arranged on described cabin body respectively, described cabin body, side cuts off, left end cuts off sealing between right-hand member partition, described left end is provided with the full end face of A and cuts off and profiling end face partition in cutting off, right-hand member is provided with the full end face of B and cuts off in cutting off, the full end face of described A cuts off, the top that the full end face of B cuts off and profiling end face cuts off respectively is provided with a set of partition lifting gear, the two ends that described side cuts off also are provided with the concatenation unit for docking between box body, when the full end face partition at box body two ends puts down, cabin body, side cuts off, left end cuts off and right-hand member cuts off the box body jointly surrounding described back-off.
14. portable cofferdam according to claim 1 cut and cover methodes, it is characterized in that described step 1), surround weir body, the weir body that this surrounds is in water body central authorities, from this weir body toward water body two sides tunneling, the weir body surrounded can be used as the precasting yard in produce modular tunnel, the earth excavated can be deposited in around precasting yard and form tourist island, and after tunnel builds up, precasting yard can be used as parking lot.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510156649.7A CN104878774B (en) | 2015-04-03 | 2015-04-03 | Movable cofferdam open-cutting method |
| PCT/CN2016/078276 WO2016155657A1 (en) | 2015-04-03 | 2016-04-01 | Movable cofferdam open-cutting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510156649.7A CN104878774B (en) | 2015-04-03 | 2015-04-03 | Movable cofferdam open-cutting method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104878774A true CN104878774A (en) | 2015-09-02 |
| CN104878774B CN104878774B (en) | 2017-01-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510156649.7A Active CN104878774B (en) | 2015-04-03 | 2015-04-03 | Movable cofferdam open-cutting method |
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| CN (1) | CN104878774B (en) |
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Cited By (3)
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| WO2016155657A1 (en) * | 2015-04-03 | 2016-10-06 | 王燏斌 | Movable cofferdam open-cutting method |
| CN108570997A (en) * | 2018-06-07 | 2018-09-25 | 深圳市市政设计研究院有限公司 | Cofferdam and construction method are built in returning for seabed tunnel point storehouse construction |
| CN110565686A (en) * | 2019-08-28 | 2019-12-13 | 中铁大桥局集团有限公司 | Construction method for penetrating river channel under pipe gallery |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN104878774B (en) | 2017-01-11 |
| WO2016155657A1 (en) | 2016-10-06 |
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