CN206957718U - The constructing device of shield launching - Google Patents
The constructing device of shield launching Download PDFInfo
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- CN206957718U CN206957718U CN201720434945.3U CN201720434945U CN206957718U CN 206957718 U CN206957718 U CN 206957718U CN 201720434945 U CN201720434945 U CN 201720434945U CN 206957718 U CN206957718 U CN 206957718U
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- steel bushing
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- loop
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Abstract
The utility model discloses the constructing device and construction method of a kind of shield launching, steel bushing is designed as U-shaped structure by the device, steel bushing is divided into multistage, every section by upper, lower two half portions are assembled, the first half is two pieces of arcs, lower half is two pieces of straight panels, on, sealing rubber pad is equipped between lower two half portions and between arc, and it is fixedly connected by flange, and employ 1 section extended loop in portal, the portal sealing device of 2 rubber cords and the steel bushing of folding pressing plate sub-assembly and Integral sealing composition, efficiently solve existing steel bushing installation difficulty, the problem of sealing difference, and efficiency of construction can be provided significantly, ensure that shield machine originates safely.
Description
Technical field
The utility model belongs to Metro Tunnel technical field, and in particular to a kind of constructing device of shield launching.
Background technology
Shield method is a kind of Fully-mechanized construction method in shallow mining method, and it is to promote Shield-type machinery in ground,
Surrounding country rock is supported by shield shell and section of jurisdiction and prevents caving in tunnel, while is entered in front of excavation with topping machanism
Row soil excavation, by being unearthed, machinery is transported outside hole, by jack in rear pressurization jacking, and assembled precast concrete section of jurisdiction,
Form a kind of mechanized construction method of tunnel structure.As the rapid development of national economy and the continuous of urbanization process add
It hurry up, urban track traffic is also developed on an unprecedented scale, and shield construction becomes city underground with its security and high efficiency to be applied
The preferred engineering method of work.But ever-changing due to engineering geology, the continuous engineering risk of shield construction is also not of uniform size, especially
, in shield launching, the engineering risk faced has become one of important risk source of whole work progress for it.Sending out
It is the powder that stability is poor, infiltration coefficient is big, water content is abundant in portal geological conditions in raw numerous shield launching engineering accidents
Fine sand layer is most commonly seen.A kind of technology of steel bushing balance originating of new opplication in recent years, makes shield machine phase in origination process
Completed when in an environment for not having Water And Earth Pressures to be mutated, so as to ensure that safety.But it is round used by this method
The steel bushing of post shapes, in its bottom mounting and fixing bracket, so in the presence of below this problem of, columned steel bushing is in foundation ditch
It is not easy to align with tunnel center line during middle installation, it is difficult to ensure its error, make easily to deviate during shield launching；Secondly
The bottom of steel bushing is arc-shaped, and shield machine bracket influences the operating efficiency of workmen in steel bushing bottom installation difficulty.
Utility model content
The utility model is for technical problem present in above-mentioned background technology, there is provided a kind of construction dress of shield launching
Put.
A kind of constructing device of shield launching, including portal steel loop plate, portal sealing device, steel bushing, shield machine and
Negative endless tube piece, the portal steel loop plate are embedded on portal, and the shield machine is arranged on inside steel bushing, the portal sealing dress
Put and be fixedly connected including extended loop, first seal and second seal, the extended loop with portal steel loop plate, described first is close
Sealing and second seal are the sub-assembly that rubber cord and folding pressing plate are formed, and the first seal passes through anchor connection
In the junction of extended loop and portal steel loop plate, the second seal is arranged on the end of extended loop；Before the steel bushing
End face is fixedly connected with extended loop by flange；
The steel bushing is U-shaped structure, and steel bushing is divided into multistage, and every section assembled by upper and lower two half portion, and the first half is
Two pieces of arcs, lower half are two pieces of straight panels, and sealing rubber pad is equipped between upper and lower two half portion and between arc, and
It is fixedly connected by flange；
The straight panel bottom of the steel bushing sets the sole of oriented both sides extension, and the sole is provided with bar planting hole, steel bushing
Cylinder is fixed on base plate of foundation pit by sole；
The negative endless tube piece is set in steel bushing, and the jack of the shield machine withstands negative endless tube piece, and minor details bear endless tube piece
Outer side covers have a steel plate section of jurisdiction, the end of the steel bushing passes through curved plate welded closure with negative endless tube piece；
The steel bushing is provided with the feeding mouth for being used for injecting filler.
Further, the steel bushing periphery is provided with the reinforcement for forming latticed longitudinal direction and ring, the steel bushing
Outside be provided with support member, steel bushing is fixed in described support member one end, and the side wall of the other end and foundation ditch is held out against.Netted reinforcement
Muscle can ensure the intensity of steel bushing.
Further, 2-8 root guide rails are provided with inside the extended loop, the guide rail is circularly and evenly distributed.Guide rail is set
It is not in " kowtowing " phenomenon during originate that shield machine, which can be ensured, and guarantee originates that everything goes well with your work carries out.
Further, the cross section of the guide rail is in a rectangular trapezoid, and its inclined-plane is towards steel bushing direction, and and horizontal direction
Angle be 30 ° -60 °.
Further, the junction of the first seal and extended loop is provided with stiffener.Make first seal firm
In extended loop.
Further, it is additionally provided with the reaction frame that counter-force is provided for shield machine jack on the outside of the end of the steel bushing.
Further, the steel bushing and the bottom gap of extended loop junction are provided with the concrete layer sealed.
Bottom gap pour using C30 concrete closely knit, realize steel bushing Integral sealing.
Compared with prior art, the beneficial effects of the utility model are：
Steel bushing is designed to U-shaped structure by the utility model, and its bottom is straight panel, beneficial in foundation ditch to middle installation；Shield
Structure machine bracket can be directly installed on foundation ditch, controllable according to the center line of the steel bushing marked in advance and the installation of tunnel center line
It is in minimum error range and easy for installation to make it, improves operating efficiency；In portal using 1 section extended loop, 2 rubber curtains
Cloth constitutes portal sealing device with folding pressing plate sub-assembly, and has been subject to seal approach in each junction, it is ensured that steel
Sleeve forms a confined space, ensure that the safety of shield launching.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the structural representation of steel bushing mid-section of the present utility model；
Fig. 3 is the structural representation that steel bushing of the present utility model is connected section with extended loop；
Fig. 4 is the structural representation of track cross-section of the present utility model；
Parts title and sequence number in figure：
Portal steel loop plate 1, steel bushing 2, shield machine 3, bear endless tube piece 4, extended loop 5, first seal 6, second seal
7, jack 8, base plate of foundation pit 9, curved plate 10, reinforcement 11, support member 12, guide rail 13, reaction frame 14, shield machine bracket
15, horizontal gusset 16, C30 concrete 17, guide rail 18；
Arc 201, straight panel 202, sole 203, reinforcement 204, feeding mouth 205.
Embodiment
The utility model is described below in conjunction with drawings and examples, following examples are solved with utility model optimal effectiveness
Explanation is released, but these embodiments are not limitation of the present utility model.
As Figure 1-3, a kind of constructing device of shield launching, including portal steel loop plate 1, portal sealing device, steel
Sleeve 2, shield machine 3 and negative endless tube piece 4, portal steel loop plate 1 are embedded on portal, and shield machine 3 is arranged on inside steel bushing 2；Hole
Door seal device includes extended loop 5, first seal 6 and second seal 7, ensures the security of shield launching, extended loop 5
It is fixedly connected with portal steel loop plate, first seal 6 and second seal 7 are to use to be made up of rubber cord and folding pressing plate
Sub-assembly, first seal 6 is arranged on the junction of extended loop 5 and portal steel loop plate 1 by anchor connection, and close first
The junction installation stiffener of sealing 6 and extended loop 5, second seal are arranged on the end of extended loop 5 by anchor connection.
The front end face of steel bushing 2 is designed with flange, and the flange of steel bushing 2 is connected by spiral with extended loop 5；Steel bushing 2
Structure is designed to U-shaped, and steel bushing 2 can be divided into multistage, and the steel bushing 2 of the present embodiment divides for 3 sections, and every section respectively by upper and lower two
Half portion is assembled, and the first half is that two pieces of arcs 201 form semicircle, and lower half is two pieces of straight panels 202, upper and lower two half portion
Between and arc 201 between be equipped with sealing rubber pad, and be fixedly connected by flange；The bottom of straight panel 202 of steel bushing 2
The sole 203 of oriented both sides extension is set, and sole 203 is provided with bar planting hole, and by inserting bar planting, steel bushing 2 is fixed on
Base plate of foundation pit 9；The periphery of steel bushing 2 is provided with the reinforcement 204 for forming latticed longitudinal direction and ring, ensures the rigidity of steel bushing 2,
The outside of steel bushing 2 is provided with more support members 12, and the side wall top of steel bushing 2, the other end and foundation ditch is fixed in the one end of support member 12
Tightly；The feeding mouth 205 for injecting filler is additionally provided with steel bushing 2.
Negative endless tube piece 4 is set in steel bushing 2, and the jack 8 of shield machine withstands negative endless tube piece, the negative endless tube piece of minor details it is outer
Side is covered with steel plate section of jurisdiction, and the end of steel bushing 2 and the negative endless tube piece of minor details are by the welded closure of curved plate 10, by overall steel
Sleeve 2 forms obturator.
In order to which " kowtowing " phenomenon occurs when preventing that shield machine 3 from originating, set 4 circumference equal in the inside of extended loop 5
The guide rail 18 of even distribution, the cross section of guide rail 18 is in a rectangular trapezoid, its inclined-plane towards steel bushing direction, and with the folder of horizontal direction
Angle is 30 °, and guiding shield machine is axially advanced according to correct.
The reaction frame 14 that counter-force is provided for shield machine jack 8 is additionally provided with the outside of the end of steel bushing 2.
The construction method of shield launching of the present utility model, comprises the following steps：
1）Portal steel loop plate 1 is embedded in the portal of foundation ditch；
2）First seal 7, connection extended loop 5 and portal steel loop plate 1 are installed in the front end of extended loop 5, in the end of extended loop 5
Second seal 7 is installed；
3）The center line and tunnel center line of steel bushing 2, steel bushing center line and tunnel center are marked on base plate of foundation pit 9
Line is overlapped, and error is not more than 1cm, and steel bushing 2 divides for 3 sections, and the both sides straight panel 202 of first paragraph steel bushing 2 is gone into the well positioning, and
Fixed temporarily with type steel support, the abutted flange of two pieces of arcs 201 on the top of steel bushing 2 be connected with to form semicircle,
Lifting is gone into the well, and the top of steel bushing 2 is docked with bottom, is bolted；
4）First paragraph steel bushing 2 with hydraulic jack is advanced into the terminal part of extended loop 5 after being completed, and passes through steel bushing 2
End flanges connect steel bushing and extended loop 5；
5）According to step 3）With 4）Second segment and the 3rd section of steel bushing 2 are fixedly connected successively；
6）After the completion of steel bushing 2 splices, in the bar planting hole reinforcement planting of sole 203, steel bushing 2 and base plate of foundation pit 9 are reinforced
Connection；
7）Shield machine bracket 15 is installed, shield machine bracket 15 and base plate of foundation pit 9 anchored, and pass through horizontal gusset 16 and steel
Weld the bottom of sleeve 2；
8）In the assembled negative endless tube piece 4 in the end of shield machine 3, the end of steel bushing 2 bears endless tube piece 4 with minor details and passes through curved plate 10
Welded closure, whole steel bushing 2 is formed into obturator；
9）Gap between extended loop 5 and the bottom of steel bushing 3 is closely knit using C30 concretings；
10）After the installation of steel bushing 2, back-pressure concrete is poured on the outside of it, steel bushing 2 is supplemented and closed；
11）The outside of steel bushing 2 is reinforced by support member 12, and the other end of support member 12 withstands the side wall of foundation ditch, steel bushing
Reaction frame is arrived on the top of curved plate 10 of 2 ends of cylinder；
12）Inertia feed liquid is injected to the feeding mouth 205 of steel bushing 2.
Obviously, above-described embodiment illustrates the utility model example just for the sake of clear, and not to implementing
Restriction.For the those of ordinary skill in the field, other not similar shapes can also be made on the basis of the above description
The change or variation of formula.There is no need and unable to all embodiment party's formulas with exhaustion.And thus amplify out aobvious and easy
Among the change or variation seen are still in the scope of protection of the utility model.
Claims (7)
1. a kind of constructing device of shield launching, including portal steel loop plate, portal sealing device, steel bushing, shield machine and negative
Endless tube piece, the portal steel loop plate are embedded on portal, and the shield machine is arranged on inside steel bushing, it is characterised in that：It is described
Portal sealing device includes extended loop, first seal and second seal, and the extended loop is fixedly connected with portal steel loop plate,
The first seal and second seal are the sub-assembly that rubber cord and folding pressing plate are formed, and the first seal is led to
Cross anchor connection and be arranged on the end of extended loop in the junction of extended loop and portal steel loop plate, the second seal；It is described
The front end face of steel bushing is fixedly connected with extended loop by flange；
The steel bushing is U-shaped structure, and steel bushing is divided into multistage, and every section assembled by upper and lower two half portion, and the first half is two pieces
Arc, lower half are two pieces of straight panels, are equipped with sealing rubber pad between upper and lower two half portion and between arc, and pass through
Flange is fixedly connected；
The straight panel bottom of the steel bushing sets the sole of oriented both sides extension, and the sole is provided with bar planting hole, and steel bushing leads to
Cross sole and be fixed on base plate of foundation pit；
The negative endless tube piece is set in steel bushing, and the jack of the shield machine withstands negative endless tube piece, and minor details bear the outer of endless tube piece
Side passes through curved plate welded closure covered with steel plate section of jurisdiction, the end of the steel bushing with negative endless tube piece；
The steel bushing is provided with the feeding mouth for being used for injecting filler.
2. the constructing device of shield launching according to claim 1, it is characterised in that：The steel bushing periphery is provided with shape
Into latticed longitudinal direction and the reinforcement of ring, the outside of the steel bushing is provided with support member, and described support member one end is fixed on
The side wall of steel bushing, the other end and foundation ditch is held out against.
3. the constructing device of shield launching according to claim 1, it is characterised in that：2- is provided with inside the extended loop
8 guide rails, the guide rail are circularly and evenly distributed.
4. the constructing device of shield launching according to claim 3, it is characterised in that：The cross section of the guide rail is in straight
Angle is trapezoidal, and its inclined-plane is 30 ° -60 ° towards steel bushing direction, and with the angle of horizontal direction.
5. the constructing device of shield launching according to claim 1, it is characterised in that：The first seal and extension
The junction of ring is provided with stiffener.
6. the constructing device of shield launching according to claim 1, it is characterised in that：On the outside of the end of the steel bushing
It is additionally provided with the reaction frame that counter-force is provided for shield machine jack.
7. the constructing device of shield launching according to claim 1, it is characterised in that：The steel bushing connects with extended loop
The bottom gap at the place of connecing is provided with the concrete layer sealed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720434945.3U CN206957718U (en) | 2017-04-24 | 2017-04-24 | The constructing device of shield launching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720434945.3U CN206957718U (en) | 2017-04-24 | 2017-04-24 | The constructing device of shield launching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206957718U true CN206957718U (en) | 2018-02-02 |
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ID=61372968
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720434945.3U Active CN206957718U (en) | 2017-04-24 | 2017-04-24 | The constructing device of shield launching |
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| Country | Link |
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| CN (1) | CN206957718U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106837362A (en) * | 2017-04-24 | 2017-06-13 | 中铁十八局集团有限公司 | The constructing device and construction method of shield launching |
| CN108625870A (en) * | 2018-06-13 | 2018-10-09 | 中铁工程装备集团有限公司 | A kind of Mechanical Method service channel originates reception sealing device with development machine |
| CN109538255A (en) * | 2019-01-22 | 2019-03-29 | 苏州大学 | Originated for shield part and portal leak when sleeve arrangement and its construction method |
| CN109899073A (en) * | 2019-03-19 | 2019-06-18 | 上海城建市政工程（集团）有限公司 | A kind of shield launching method |
| CN111734427A (en) * | 2020-07-15 | 2020-10-02 | 南昌大学 | Flexible connection steel sleeve mechanism for shield starting and construction method thereof |
-
2017
- 2017-04-24 CN CN201720434945.3U patent/CN206957718U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106837362A (en) * | 2017-04-24 | 2017-06-13 | 中铁十八局集团有限公司 | The constructing device and construction method of shield launching |
| CN108625870A (en) * | 2018-06-13 | 2018-10-09 | 中铁工程装备集团有限公司 | A kind of Mechanical Method service channel originates reception sealing device with development machine |
| CN108625870B (en) * | 2018-06-13 | 2024-04-26 | 中铁工程装备集团有限公司 | Development machine originating receiving sealing device for mechanical method communication channel |
| CN109538255A (en) * | 2019-01-22 | 2019-03-29 | 苏州大学 | Originated for shield part and portal leak when sleeve arrangement and its construction method |
| CN109899073A (en) * | 2019-03-19 | 2019-06-18 | 上海城建市政工程（集团）有限公司 | A kind of shield launching method |
| CN111734427A (en) * | 2020-07-15 | 2020-10-02 | 南昌大学 | Flexible connection steel sleeve mechanism for shield starting and construction method thereof |
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Address after: 300222 Shuanggang Township, Jinnan District, Tianjin Co-patentee after: CHINA RAILWAY 18 BUREAU GROUP MUNICIPAL ENGINEERING Co.,Ltd. Patentee after: CHINA RAILWAY 18TH BUREAU GROUP Co.,Ltd. Address before: 300222 Shuanggang Township, Jinnan District, Tianjin Co-patentee before: CHINA RAILWAY 18 BUREAU GROUP TRACK TRAFFIC PROJECT Co.,Ltd. Patentee before: CHINA RAILWAY 18TH BUREAU GROUP Co.,Ltd. |