CN100526605C - Steel formwork support system for extruded concrete lining method for shielding rectangular tunnel - Google Patents
Steel formwork support system for extruded concrete lining method for shielding rectangular tunnel Download PDFInfo
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- CN100526605C CN100526605C CNB2005100284818A CN200510028481A CN100526605C CN 100526605 C CN100526605 C CN 100526605C CN B2005100284818 A CNB2005100284818 A CN B2005100284818A CN 200510028481 A CN200510028481 A CN 200510028481A CN 100526605 C CN100526605 C CN 100526605C
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Abstract
The steel formwork supporting system for the lining process of pressurized depositing concrete in rectangular shield process consists of several rings arranged longitudinally and closely along the tunnel. The rings are connected via positioning pins and screws and each of the rings is assembled inside the tail casing of the rectangular tunnel shield machine. Each ring includes one right unit, one left unit, several middle units and several connecting units, and each of the units consists of different types of steel formworks and adjustable supports. The present invention also discloses the method of constructing the steel formwork supporting system. The present invention has the advantages of simple members, reasonable structure, high bearing capacity, simple assembling, short construction period and low cost, and may be applied together with pressure grouting concrete lining process in rectangular tunnel construction.
Description
Technical field:
The present invention relates to a kind of constructing tunnel equipment, especially a kind of rectangular shield enhancing perfusion concrete lining method steel form support system.
Background technology:
Rectangular Tunnel owing to its shape rationally, the few underground constructions such as grade separation and subway by-pass under railway, the highway, underground store, antiaircraft facility that are widely used in of effective area utilization rate height, material consumption.Following several ways are adopted in existing underground Rectangular Tunnel construction usually: heavy excavation, box culvert method, pipe curtain method and pipe jacking method.Heavy excavation is to face down from ground to dig the needed degree of depth and width, with the Rectangular Tunnel that steel concrete is built, lining cutting becomes to need, backfill earthing again; This job practices certainly will have influence on traffic and people's activity normally on ground, and constructing in this way in the down town of prosperity, it is impossible almost to become.The box culvert method needs a place or an active well greater than Rectangular Tunnel projected area (long * wide), makes a reinforced concrete box culvert (Rectangular Tunnel) at the scene in advance, while excavate with oil cylinder box culvert is headed in the soil layer again; Because need bigger construction plant, the frictional force of box culvert outer wall and soil is very big when adding jacking,, generally only be used for the construction of grade separation under highway or the railway so be subjected to certain limitation with the length of tunnel of box culvert method construction.Pipe curtain method (or claiming pipe shed method) is in active well a lot of root steel pipes to be headed into soil, and steel pipe links to each other in twos, pins with snap close, and in the slip casting of snap close place, thereby form the airtight underground space, i.e. " pipe curtain ", support while excavating then, become a Rectangular Tunnel with reinforced concrete lining layer at last; The limited length of the general construction of this method, and complex process are used for the construction of grade separation and underground walkway under the highway more.Pipe jacking method needs to make in advance a plurality of tube couplings in factory, be transported to building-site respectively, hang in the starting well again, one by one tube coupling being headed on push-bench with oil cylinder tunnels forward, obvious tube coupling for the ultra-large type square-section, make, transportation and lifting all be a very thing of difficulty, so the construction of pipe jacking method generally only is applicable to middle-size and small-size (4m * 6m is following) Rectangular Tunnel.
In sum, the existing construction method institute applicable scope that is used for Rectangular Tunnel all has its limitation separately: box culvert method, pipe curtain method only are applicable to the construction of short distance, heavy in section Rectangular Tunnel, pipe jacking method only is applicable to the construction of long distance, small bore Rectangular Tunnel, and the heavy excavation method only just will consider use on the building site of spaciousness.
The enhancing perfusion concrete lining method is a kind of novel construction method of constructing tunnel, and its English name is ExtrudedConcrete Lining (being abbreviated as ECL, down together), promptly does lining cutting with the concrete of cast-in-place perfusion and replaces traditional pipe-plate lining.Its principle is: the shield structure excavates forwardly, and in the rear end lining cutting, two procedures is carried out simultaneously with the ECL concrete, normally driving what, how many lining cutting also pushes ahead, thereby is referred to as the ＂ well and advances technology ＂.But the tunnel with the construction of ECL worker's method only limits to circular tunnel at present.
China Patent No. is that 86103897 patent of invention " lining shuttering " discloses a kind of ring-type steel form that is used for above-mentioned ECL method and supports, a promptly a kind of arch lining retaining wall, and it is assembled by some sections butt joint.Each section is made of at least two section parts of mutual butt joint, and relative two ends are connected by a latch.Each section parts are made up of the substrate that several are hinged.Surface, two inserting sides is arranged on the latch, be furnished with the device that is complementary with this surface, inserting side on the adjacent end position substrate.The advantage of this invention be its composition substrate can adapt to the tunnel different shape and can after use, reclaim, this arch lining retaining wall is easy to operate, can transmit by the advancing and the caused horizontal stroke of concrete cast, longitudinal stress of development machine backplate, and need not use the arch lining form.
The described arch lining of an above-mentioned patent retaining wall, promptly steel form supports, though claim that in theory " as long as change the quantity of the standard component that uses, it just can adapt to the shape of various expections and the various sizes in tunnel." still; for big section Rectangular Tunnel; because the concrete that will bear deadweight, build pressure, stratum weight, landing load and shield structure thrust all very huge; prop up a retaining wall and just constitute and should arch serve as a contrast; connecting link is many; the while does not have intermediate supports again, so its strength and stiffness all are difficult to bear Rectangular Tunnel, especially the substantial load that when building, produced of large-scale rectangular tunnel concrete lining cutting by size and all smaller standard component of weight.In addition, the described arch lining of this a patent retaining wall is made up of many small-sized standardized structural elements, therefore the tunnel of constructing a huge section just needs the member of quite a lot of quantity, thereby also just need with a large amount of assembling combination of manually carrying out, this not only expends a large amount of artificial, but also can prolong construction period greatly.
Summary of the invention:
In enhancing perfusion concrete lining (ECL) method, be difficult to adapt to Rectangular Tunnel at prior art, the shortcoming of especially big section Rectangular Tunnel, the rectangular shield enhancing perfusion concrete lining method steel form support system that the invention provides that a kind of supporting capacity is strong, assembly unit is simple and direct, short construction period and cost are low, can be applicable to big section, Rectangular Tunnel construction.
The present invention solves the technical scheme that its technical problem takes:
A kind of rectangular shield enhancing perfusion concrete lining method steel form support system, it by some along the tunnel vertical compact arranged ring formed, link by alignment pin and bolt between ring and the front/rear end that encircles; Each ring is assembled in the housing of rectangular shield drive end unit with steel form, and it includes, and the unit is striden on a left side, unit and some linkage units are striden in a right side; The left side that the unit is positioned at ring is striden on a described left side, and form by two master module I, a side template, two Angle formworks, two master module I lay respectively at the upper and lower part that the unit is striden on this left side, side template is positioned at the left side that the unit is striden on this left side, two Angle formworks lay respectively at the upper left corner and the lower left corner that the unit is striden on this left side, and by bolt two master module I and side template are connected into " Contraband " font; The right side that the unit is positioned at ring is striden on the described right side, and it is identical that the unit is striden on structure and an above-mentioned left side, and it is symmetrical about vertical vertical centering control axial plane in tunnel that the unit is striden on shape and a left side; It is characterized in that: described ring also includes some middle span unit, described middle span unit is made up of two master module II and is striden between the unit left and right, they each other and and left and right striding between the unit link by linkage unit, two master module II lay respectively at the upper and lower part of span unit in this; Described linkage unit is striden unit, the right side and is striden among unit, the middle span unit three between wantonly Unit two on a left side, it includes two bucket shape template and adjustable supports, two bucket shape templates lay respectively at the upper and lower part of this linkage unit, the master module I or the master module II of their each comfortable left and right sides ends and adjacent cells upper and lower part get up with Bolt Connection, and adjustable supports vertically is supported on respectively between the end, the left and right sides of upper and lower bucket shape template; The unit is striden on a described left side and right ingredient of striding the unit also includes adjustable supports, and this adjustable supports vertically is supported between the upper and lower Angle formwork.
The construction process of rectangular shield enhancing perfusion concrete lining method steel form support system of the present invention is: the back casing inside of the rectangular shield drive end unit in tunnel excavating process follows these steps to order and constructs:
1) bottom in rectangular shield machine back casing inner space is earlier good with concreting, after treating that concrete solidifies substantially, with some master module II in the middle of equidistantly being layed in concrete above, with two master module I left and right symmetricallies be layed in two side ends concrete above, and back when the rearward end of each master module I and master module II and rectangular shield machine set out links with alignment pin and bolt by support;
2) two Angle formworks are layed in the lower left corner and the lower right corner respectively, and connect with bolt with the left and right master module I of bottom two side ends, the rearward end with this two Angle formwork links with alignment pin and bolt by support with the back simultaneously;
3) respectively lay a bucket shape template between adjacent master module I, master module II, and the side end that they join is connected with bolt, the rearward end with this bucket shape template links with alignment pin and bolt by support with the back simultaneously;
4) master module II that some master module II and last master module I and bottom have been laid and the master module I top that is arranged at rectangular shield machine back casing inner space correspondingly, and the end links with alignment pin and bolt by support with the back thereafter;
5) two Angle formworks are arranged at the upper left corner and the upper right corner respectively, and connect with bolt with the left and right master module I of top two side ends, the rearward end with this two Angle formwork links with alignment pin and spiral shell by support with the back simultaneously;
6) between adjacent master module I, the master module II on top a bucket shape template is set respectively, and the side end that they join is connected with bolt, the rearward end with this bucket shape template links with alignment pin and bolt by support with the back simultaneously;
7) side template is vertically inserted between the upper and lower Angle formwork in left side, the opposite side template is vertically inserted between the upper and lower Angle formwork in right side, and this two side template connected with bolt with the upper and lower Angle formwork that joins respectively, the rearward end with this two side template links with alignment pin and bolt by support with the back simultaneously;
8) the adjustment post with adjustable supports rotates in the direction of the clock to shorten the length of adjustable supports, then it is vertically placed between the upper and lower Angle formwork in left side and between the upper and lower Angle formwork in right side, adjust post with the elongation adjustable supports by rotation counterclockwise again, thereby make the upper and lower support of adjustable supports prop up upper and lower Angle formwork tightly;
9) adjustable supports vertically is arranged between two side ends of corresponding upper and lower bucket shape template with the described same method of step 8) and props up upper and lower bucket shape template tightly;
10) fix all securing members, the assembly unit of first ring of described rectangular shield enhancing perfusion concrete lining method steel form support system is that this finishes;
11) circulation repeats step 1) to 10 in regular turn) to make up follow-up each ring of the described rectangular shield enhancing perfusion of assembly unit concrete lining method steel form support system, but with this step 1) to 10) in back when setting out of the rearward end of each template and rectangular shield machine by support with alignment pin and the joining operation of bolt, the leading section of corresponding template links with alignment pin and bolt on the rearward end of changing into each template and the last ring, finishes the structure of promptly having finished described rectangular shield enhancing perfusion concrete lining method steel form support system after assembly unit of each ring by above-mentioned steps.
The master module I of rectangular shield enhancing perfusion concrete lining method steel form support system of the present invention is that section is the rectangular box of parallelogram, described side template is that section is the rectangular box of isosceles trapezoid, described Angle formwork is that section is the L shaped casing of 90 ° of bent angles, described bucket shape template is that section is bucket-shaped rectangular box, described master module II is that section is the rectangular box of isosceles trapezoid, described model of the column is that section is the flute profile casing of isosceles, described adjustable supports is by upper support, lower support and between this adjustment post between the two constitutes, this adjustment post can be rotated to adjust the length of adjustable supports.
Linkage unit of the present invention also can include model of the column, and this model of the column vertically is arranged between the upper and lower bucket shape template, and links with bolt and they; Construction process correspondingly is the inserting step 7a between step 7) and step 8) at said method), the contents are as follows:
7a) in the upper and lower part corresponding each each vertically inserts a model of the column between to the bucket shape template, and the upper/lower terminal of this model of the column is linked with bolt with the upper and lower bucket shape template of joining respectively.
The minimum number of linkage unit of the present invention is 1, and being set to of this linkage unit and middle span unit is alternate one by one.
Rectangular shield enhancing perfusion concrete lining method steel form support system of the present invention utilizes a spot of difform steel form to be assemblied to form the support ring of rectangle, and and then form whole system by some compact arranged rings, thereby short construction period, save artificial, be provided with vertical adjustable supports and principal post template simultaneously, the strength and stiffness that support have greatly been increased, improved the supporting capacity of whole system, thereby go for Rectangular Tunnel, enhancing perfusion concrete lining (ECL) construction method of the big section Rectangular Tunnel of especially long distance has been filled up the blank of prior art in the big section Rectangular Tunnel construction field of long distance.
The steel form that constitutes rectangular shield enhancing perfusion concrete lining method steel form support system of the present invention is different with concrete support template in traditional building, it can not only bear concrete deadweight and build pressure, can also bear the huge thrust of stratum weight and landing load and shield structure, this steel form can use repeatedly, also need not use the template film.
Description of drawings:
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the cross-sectional schematic of the present invention when underground construction.
Fig. 3 is the structural representation of another embodiment of the present invention.
Fig. 4 is the structural representation of adjustable supports among the present invention.
The specific embodiment:
Now the present invention is described in further detail with accompanying drawing in conjunction with specific embodiments.
At first consult Fig. 1 structural representation of the present invention and Fig. 2 cross-sectional schematic of the present invention.It is that example illustrates content of the present invention that illustrated embodiment is striden block construction with three, described rectangular shield enhancing perfusion concrete lining method steel form support system by some along the tunnel 100 on vertical compact arranged ring form, link by alignment pin and bolt between the front/rear end of ring and ring, each ring 100 is with steel form assembled (see figure 2) in the housing of rectangular shield machine 200 afterbodys.Ring 100 include a left side stride unit 10, a right side stride unit 20, some in span unit 40 and some linkage units 30 (being a middle span unit 40 and two linkage units 30 in the present embodiment).The left side that unit 10 is positioned at ring 100 is striden on a described left side, and is made up of two master module I 1, a side template 2, two Angle formworks 3 and adjustable supports 5; Two master module I 1 lay respectively at the upper and lower that unit 10 is striden on this left side, side template 2 is positioned at the left side that unit 10 is striden on this left side, two Angle formworks 3 lay respectively at the upper left corner and the lower left corner that unit 10 is striden on this left side, and two master module I 1 and side template 2 being connected into " Contraband " font by bolt, adjustable supports 5 vertically is supported between the upper and lower Angle formwork 3.The right side that unit 20 is positioned at ring 100 is striden on the described right side, it is identical that unit 10 is striden on structure and an above-mentioned left side, also be made up of two master module I1, a side template 2, two Angle formworks 3 and adjustable supports 5, the position of each member is symmetrical about vertical vertical centering control axial plane (representing with A-A in the embodiment shown in fig. 1) in tunnel with the left unit 10 of striding with the shape that unit 20 is striden on the right side.Span unit 40 is made up of two master module II 6 and is positioned at left and right striding between the unit (10,20) in described, itself and left and right striding between the unit (10,20) link by linkage unit 30, and two master module II 6 lay respectively at the upper and lower of span unit 40 in this.Described linkage unit 30 lays respectively at that unit 10 is striden on a left side, stride between unit 20 and the middle span unit 40 on the right side, it includes two bucket shape templates 4 and adjustable supports 5, two bucket shape templates 4 lay respectively at the upper and lower of this linkage unit 30, the master module I 1 of their each comfortable left and right sides ends and adjacent cells upper and lower part or master module II 6 usefulness Bolt Connection are got up, and adjustable supports 5 vertically is supported on respectively between the end, the left and right sides of upper and lower bucket shape template 4.
Above-mentioned master module I 1, side template 2, Angle formwork 3, bucket shape template 4 and master module II 6 are steel form, and adjustable supports 5 is a support member, and they all are the basic building blocks of assembly unit ring 100.The shape and structure of all kinds of steel forms is as follows: described master module I 1 is that section is the rectangular box of parallelogram, described side template 2 is that section is the rectangular box of isosceles trapezoid, described Angle formwork 3 is that section is the L shaped casing of 90 ° of bent angles, described bucket shape template 4 is that section is bucket-shaped rectangular box, and described master module II 6 is that section is the rectangular box of isosceles trapezoid; In addition, the structure of described adjustable supports 5 can be consulted Fig. 4, and adjustment post 10 between the two is constituted by upper support 9, lower support 11 with between this for it, and this adjustment post 10 can be rotated to adjust the length of adjustable supports 5.
In the work progress in tunnel, the method that makes up the rectangular shield enhancing perfusion concrete lining method steel form support system of the invention described above embodiment is, the back casing inside of the rectangular shield machine 200 (see figure 2) afterbodys in tunnel excavating process follows these steps to order and constructs:
1) bottom in rectangular shield machine 200 back casing inner spaces is earlier good with concreting, after treating that concrete solidifies substantially, with some (in the present embodiment being one) master module II 6 equidistantly be layed in central bottom concrete above, with two master module I, 1 left and right symmetrically be layed in two side ends bottom concrete above, and the back support that leans on the when rearward end of this master module I 1 and master module II 6 set out with rectangular shield machine 20 links with alignment pin and bolt;
2) two Angle formworks 3 are layed in the lower left corner and the lower right corner respectively, and connect with bolt with the left and right master module I1 of bottom two side ends, rearward end and the above-mentioned back with this two Angle formwork 3 links with alignment pin and bolt by support simultaneously;
3) respectively lay a bucket shape template 4 between adjacent master module I 1, master module II 6, and the side end that they join is connected with bolt, the rearward end with this bucket shape template 4 links with alignment pin and bolt by support with the back simultaneously;
4) master module II 6 that some (in the present embodiment being one) master module II 6 and two master module I 1 and bottom have been laid and master module I 1 top that is arranged at rectangular shield machine 20 back casing inner spaces correspondingly, i.e. master module II 6 correspondences master module II 6 once on, master module I 1 correspondence master module I 1 once on one, and the rearward end of master module I 1 on this master module II 6 and two linked with alignment pin and bolt by support with the back;
5) two Angle formworks 3 are arranged at the upper left corner and the upper right corner respectively, and connect with the left and right master module I 1 usefulness bolt of top two side ends, the rearward end with this two Angle formwork 3 links with alignment pin and spiral shell by support with the back simultaneously;
6) between adjacent master module I 1, the master module II 6 on top a bucket shape template 4 is set respectively, and the side end that they join is connected with bolt, the rearward end with this bucket shape template 4 links with alignment pin and bolt by support with the back simultaneously;
7) side template 2 is vertically inserted between the upper and lower Angle formwork 3 in left side, opposite side template 2 is vertically inserted between the upper and lower Angle formwork 3 in right side, and this two side template 2 connected with the upper and lower Angle formwork 3 usefulness bolt of joining respectively, the rearward end with this two side template 2 links with alignment pin and bolt by support with the back simultaneously;
8) the adjustment post 10 with adjustable supports 5 rotates in the direction of the clock to shorten the length of adjustable supports 5, then it is vertically placed between the upper and lower Angle formwork 3 in left side and between the upper and lower Angle formwork 3 in right side, adjust post 10 with elongation adjustable supports 5 by rotation counterclockwise again, thereby make the upper and lower support 9 and 11 of adjustable supports 5 prop up upper and lower Angle formwork 3 tightly;
9) adjustable supports 5 vertically is arranged between two side ends of corresponding upper and lower bucket shape template 4 with the described same method of step 8) and props up upper and lower bucket shape template 4 tightly;
10) fix all securing members, the assembly unit of first ring 100 of described rectangular shield enhancing perfusion concrete lining method steel form support system is that this finishes;
11) circulation repeats step 1) to 10 in regular turn) respectively encircle 100 to make up the follow-up of the described rectangular shield enhancing perfusion of assembly unit concrete lining method steel form support system, but with this step 1) to 10) in back when setting out of the rearward end of each template and rectangular shield machine 200 by support with alignment pin and the joining operation of bolt, the leading section of corresponding template links with alignment pin and bolt on the rearward end of changing into each template and the last ring 100, finishes by above-mentioned steps and respectively encircles the structure of promptly having finished described rectangular shield enhancing perfusion concrete lining method steel form support system after 100 the assembly unit.
In some Rectangular Tunnel, the span horizontal as underground square is very big, in order to strengthen the strength and stiffness of its support, also needs to increase column between the unit respectively striding.In order to adapt to the construction of such Rectangular Tunnel, the present invention also provides the another kind of embodiment that has model of the column, and its structure as shown in Figure 3.The structure that illustrates another embodiment of rectangular shield enhancing perfusion concrete lining method steel form support system of the present invention is to increase a kind of member on the basis of first kind of example structure of the present invention shown in Figure 1, be that its linkage unit 30 also includes model of the column 7, this model of the column 7 is that section is the flute profile casing of isosceles, and vertically be arranged between the upper and lower bucket shape template 4, and link with bolt and they.In addition, the structure of the remainder of present embodiment structure shown in Figure 3 and first kind of embodiment shown in Figure 1 is just the same.Thereby, the method that makes up embodiments of the invention shown in Figure 3 is exactly to increase a step in the method content of above-mentioned structure first kind of embodiment shown in Figure 1, i.e. inserting step 7a between step 7) and step 8)), content is: 7a) in the upper and lower part corresponding each each vertically inserts a model of the column 7 between to bucket shape template 4, and the upper/lower terminal of this model of the column 7 is linked with the upper and lower bucket shape template 4 usefulness bolts that join respectively.In other words, after the step 7) of the method for having finished first kind of embodiment of aforementioned structure rectangular shield enhancing perfusion concrete lining method steel form support system of the present invention shown in Figure 1, the aforesaid 7a of implementation content) construction of step, and then proceed the construction of step 8), this has just formed the method that makes up another embodiment of the present invention shown in Figure 3.
The model of the column 7 of another embodiment of rectangular shield enhancing perfusion concrete lining method steel form support system of the present invention as shown in Figure 3, can in described rectangular shield enhancing perfusion concrete lining method steel form support system, increase setting in arbitrary linkage unit 30 of arbitrary ring 100 according to the stressed needs in tunnel itself.
Each ring 100 of rectangular shield enhancing perfusion concrete lining method steel form support system of the present invention can be striden single 10, one right side by the linkage unit 30 of the middle span unit 40 of varying number, varying number and a left side according to the size of institute's built tunnel section and be striden unit 20 and form.Should in span unit 40 minimum numbers be 0, the minimum number of linkage unit 30 is 1, has just constituted the most brief form of structure of the present invention in this case, promptly encircle 100 by a left side stride unit 10, unit 20 is striden on a right side and a linkage unit 30 is formed.Except the most brief this form of structure, it is alternate one by one encircling respectively among the present invention that being provided with of 100 linkage unit 30 and middle span unit 40 arrange, promptly a middle span unit 40 connects a linkage unit 30, order connects a middle span unit 40 and a linkage unit 30 more then, that is to say, middle span unit 40 each other, stride between the unit 10 on a perhaps middle span unit 40 and a left side, stride between the unit 20 on the perhaps middle span unit 40 and the right side all is joining by linkage unit 30, and all being positioned at a left side, described linkage unit 30 strides unit 10, unit 20 is striden on the right side, between wantonly Unit two, its quantity is always than more than 40 one of middle span unit among middle span unit 40 threes.The ring 100 of Fig. 1 and two embodiment of the present invention shown in Figure 3 is to stride unit 10, a right side by a left side to stride that span unit 40 and two linkage units 30 are constituted in the unit 20.
Quantity when the middle span unit 40 of rectangular shield enhancing perfusion concrete lining method steel form support system of the present invention is 0, in promptly not including span unit 40 time, that is when not including master module II 6, omit in the method content that its corresponding construction process is exactly or another embodiment shown in Figure 2 embodiment illustrated in fig. 1 at aforementioned structure relate in span unit 40, the institute that promptly relates to master module II 6 is in steps and content.
Please consult Fig. 2 again, in the set of tunneling construction process, after the 100 structure assembly units of a ring finish, just ring-like concreting district is sealed, carry out concreting (comprising the column concrete) by the sprue gate on the upper end template then with Side Template.When rectangular shield machine 200 advances, the huge thrust of promoting mainly the oil-feed cylinder is on steel form support ring 100, the slippage forward of shield structure housing, simultaneously stratum weight, landing load, not solidified weight concrete and build pressure and all be pressed on the steel form support system are so whole steel form support system must have good strength and stiffness; The steel form support system also must have good installability and detachability in addition, and its installation and removal can be finished by a special-purpose assembly unit chassis.
The steel form that constitutes rectangular shield enhancing perfusion concrete lining method steel form support system of the present invention is different with concrete support template in traditional building, it can not only bear concrete deadweight and build pressure, can also bear the huge thrust of stratum weight and landing load and shield structure, this steel form can use repeatedly, also need not use the template film.
Rectangular shield enhancing perfusion concrete lining method steel form support system of the present invention and construction process thereof have been realized the prerequisite performance of above-mentioned steel form support system well, its member is simple, rational in infrastructure, combine with enhancing perfusion concrete lining (ECL) construction method and to be applied in the Rectangular Tunnel construction work, have that supporting capacity is strong, the assembly unit dismantling property is good, short construction period and the low advantage of cost, solved the construction problem of long square, filled up the blank in this technical field from big section Rectangular Tunnel.
Claims (6)
1, a kind of rectangular shield enhancing perfusion concrete lining method steel form support system, by some along the tunnel vertical compact arranged ring formed, link by alignment pin and bolt between ring and the front/rear end that encircles; Each ring is assembled in the housing of rectangular shield drive end unit with steel form, and it includes, and the unit is striden on a left side, unit and some linkage units are striden in a right side; The left side that the unit is positioned at ring is striden on a described left side, and form by two master module I, a side template and two Angle formworks, two master module I lay respectively at the upper and lower part that the unit is striden on this left side, side template is positioned at the left side that the unit is striden on this left side, two Angle formworks lay respectively at the upper left corner and the lower left corner that the unit is striden on this left side, and by bolt two master module I and side template are connected into " Contraband " word; The right side that the unit is positioned at ring is striden on the described right side, and it is identical that the unit is striden on structure and an above-mentioned left side, and it is symmetrical about vertical vertical centering control axial plane in tunnel that the unit is striden on shape and a left side; It is characterized in that: described ring also includes some middle span unit, described middle span unit is made up of two master module II and is striden between the unit left and right, they each other and and left and right striding between the unit link by linkage unit, two master module II lay respectively at the upper and lower part of span unit in this; Described linkage unit is striden unit, the right side and is striden among unit, the middle span unit three between wantonly Unit two on a left side, it includes two bucket shape template and adjustable supports, two bucket shape templates lay respectively at the upper and lower part of this linkage unit, the master module I or the master module II of their each comfortable left and right sides ends and adjacent cells upper and lower part get up with Bolt Connection, and adjustable supports vertically is supported on respectively between the end, the left and right sides of upper and lower bucket shape template; The unit is striden on a described left side and right ingredient of striding the unit also includes adjustable supports, and this adjustable supports vertically is supported between the upper and lower Angle formwork.
2, rectangular shield enhancing perfusion concrete lining method steel form support system according to claim 1, it is characterized in that: described linkage unit also includes model of the column, this model of the column vertically is arranged between the upper and lower bucket shape template, and links with bolt and they.
3, rectangular shield enhancing perfusion concrete lining method steel form support system according to claim 1 is characterized in that; Described master module I is that section is the rectangular box of parallelogram, described side template is that section is the rectangular box of isosceles trapezoid, described Angle formwork is that section is the L shaped casing of 90 ° of bent angles, described bucket shape template is that section is bucket-shaped rectangular box, described master module II is that section is the rectangular box of isosceles trapezoid, described model of the column is that section is the flute profile casing of isosceles, adjustment post between the two is constituted described adjustable supports by upper support and lower support with between this, and this adjustment post can be rotated to adjust the length of adjustable supports.
4, rectangular shield enhancing perfusion concrete lining method steel form support system according to claim 1, it is characterized in that: the minimum number of described linkage unit is 1, being set to of this linkage unit and middle span unit is alternate one by one.
5, a kind of method that makes up rectangular shield enhancing perfusion concrete lining method steel form support system as claimed in claim 1 is characterized in that: the back casing inside of the rectangular shield drive end unit in tunnel excavating process follows these steps to order and constructs:
1) bottom in rectangular shield machine back casing inner space is earlier good with concreting, after treating that concrete solidifies substantially, with some master module II in the middle of equidistantly being layed in concrete above, with two master module I left and right symmetricallies be layed in two side ends concrete above, and back when the rearward end of each master module I and master module II and rectangular shield machine set out links with alignment pin and bolt by support;
2) two Angle formworks are layed in the lower left corner and the lower right corner respectively, and connect with bolt with the left and right master module I of bottom two side ends, the rearward end with this two Angle formwork links with alignment pin and bolt by support with the back simultaneously;
3) respectively lay a bucket shape template between adjacent master module I, master module II, and the side end that they join is connected with bolt, the rearward end with this bucket shape template links with alignment pin and bolt by support with the back simultaneously;
4) master module II that some master module II and last master module I and bottom have been laid and the master module I top that is arranged at rectangular shield machine back casing inner space correspondingly, and the end links with alignment pin and bolt by support with the back thereafter;
5) two Angle formworks are arranged at the upper left corner and the upper right corner respectively, and connect with bolt with the left and right master module I of top two side ends, the rearward end with this two Angle formwork links with alignment pin and spiral shell by support with the back simultaneously;
6) between adjacent master module I, the master module II on top a bucket shape template is set respectively, and the side end that they join is connected with bolt, the rearward end with this bucket shape template links with alignment pin and bolt by support with the back simultaneously;
7) side template is vertically inserted between the upper and lower Angle formwork in left side, the opposite side template is vertically inserted between the upper and lower Angle formwork in right side, and this two side template connected with bolt with the upper and lower Angle formwork that joins respectively, the rearward end with this two side template links with alignment pin and bolt by support with the back simultaneously;
8) the adjustment post with adjustable supports rotates in the direction of the clock to shorten the length of adjustable supports, then it is vertically placed between the upper and lower Angle formwork in left side and between the upper and lower Angle formwork in right side, adjust post with the elongation adjustable supports by rotation counterclockwise again, thereby make the upper and lower support of adjustable supports prop up upper and lower Angle formwork tightly;
9) adjustable supports vertically is arranged between two side ends of corresponding upper and lower bucket shape template with the described same method of step 8) and props up upper and lower bucket shape template tightly;
10) fix all securing members, the assembly unit of first ring of described rectangular shield enhancing perfusion concrete lining method steel form support system is that this finishes;
11) circulation repeats step 1) to 10 in regular turn) to make up follow-up each ring of the described rectangular shield enhancing perfusion of assembly unit concrete lining method steel form support system, but with this step 1) to 10) in back when setting out of the rearward end of each template and rectangular shield machine by support with alignment pin and the joining operation of bolt, the leading section of corresponding template links with alignment pin and bolt on the rearward end of changing into each template and the last ring, finishes the structure of promptly having finished described rectangular shield enhancing perfusion concrete lining method steel form support system after assembly unit of each ring by above-mentioned steps.
6, the method for structure rectangular shield enhancing perfusion concrete lining method steel form support system according to claim 5 is characterized in that: inserting step 7a between step 7) and step 8)), the contents are as follows:
7a) in the upper and lower part corresponding each each vertically inserts a model of the column between to the bucket shape template, and the upper/lower terminal of this model of the column is linked with bolt with the upper and lower bucket shape template of joining respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100284818A CN100526605C (en) | 2005-08-04 | 2005-08-04 | Steel formwork support system for extruded concrete lining method for shielding rectangular tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100284818A CN100526605C (en) | 2005-08-04 | 2005-08-04 | Steel formwork support system for extruded concrete lining method for shielding rectangular tunnel |
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| Publication Number | Publication Date |
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| CN1730909A CN1730909A (en) | 2006-02-08 |
| CN100526605C true CN100526605C (en) | 2009-08-12 |
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| CNB2005100284818A Expired - Fee Related CN100526605C (en) | 2005-08-04 | 2005-08-04 | Steel formwork support system for extruded concrete lining method for shielding rectangular tunnel |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101660418B (en) * | 2008-08-27 | 2013-05-29 | 上海市机械施工有限公司 | Box culvert jack-in replacement rectangular pipe support method used for tunnel construction |
| CN102691510B (en) * | 2012-06-15 | 2014-05-21 | 中铁第四勘察设计院集团有限公司 | Butt section lining structure in shield tunnel |
| CN102879553B (en) * | 2012-09-21 | 2015-04-08 | 中铁工程装备集团有限公司 | Testing device for extruding and lining of concrete |
| CN104131816B (en) * | 2014-06-20 | 2019-02-12 | 上海建工五建集团有限公司 | The construction method in subway tunnel subterranean wall enabling hole in a kind of operation |
| CN106223967B (en) * | 2016-09-20 | 2017-08-25 | 中铁工程装备集团有限公司 | A kind of great burying rectangle or class rectangle tunneling shield constructing device and method |
| CN106437769B (en) * | 2016-11-09 | 2018-06-01 | 辽宁工程技术大学 | The self-propelled hydraulic formwork jumbo poured for Deep Foundation Pit of Metro Stations engineering top plate |
| CN108590705A (en) * | 2018-05-04 | 2018-09-28 | 北京市政建设集团有限责任公司 | A kind of shield beginning well north and south side reserved opening formwork support system |
| CN110700650B (en) * | 2019-09-08 | 2021-07-13 | 宁波西沃工程科技有限公司 | Construction method of pouring type buried transformer substation |
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| CN1730909A (en) | 2006-02-08 |
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