CN111425211B - Stacked multilayer rubber bag sealing structure capable of meeting large-gap requirement and using method thereof - Google Patents
Stacked multilayer rubber bag sealing structure capable of meeting large-gap requirement and using method thereof Download PDFInfo
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- CN111425211B CN111425211B CN202010177048.5A CN202010177048A CN111425211B CN 111425211 B CN111425211 B CN 111425211B CN 202010177048 A CN202010177048 A CN 202010177048A CN 111425211 B CN111425211 B CN 111425211B
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- 238000007789 sealing Methods 0.000 title claims abstract description 38
- 238000000034 method Methods 0.000 title claims description 11
- 239000011435 rock Substances 0.000 claims abstract description 23
- 230000000149 penetrating effect Effects 0.000 claims description 15
- 238000010276 construction Methods 0.000 claims description 12
- 238000004519 manufacturing process Methods 0.000 claims description 12
- 238000009434 installation Methods 0.000 claims description 7
- 239000010687 lubricating oil Substances 0.000 claims description 3
- 238000009417 prefabrication Methods 0.000 claims description 3
- 230000003247 decreasing effect Effects 0.000 claims description 2
- 230000000903 blocking effect Effects 0.000 abstract description 4
- 239000010410 layer Substances 0.000 description 62
- 238000009412 basement excavation Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 235000010627 Phaseolus vulgaris Nutrition 0.000 description 1
- 244000046052 Phaseolus vulgaris Species 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 230000000246 remedial effect Effects 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
- E21D9/08—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining with additional boring or cutting means other than the conventional cutting edge of the shield
- E21D9/087—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining with additional boring or cutting means other than the conventional cutting edge of the shield with a rotary drilling-head cutting simultaneously the whole cross-section, i.e. full-face machines
- E21D9/0873—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining with additional boring or cutting means other than the conventional cutting edge of the shield with a rotary drilling-head cutting simultaneously the whole cross-section, i.e. full-face machines the shield being provided with devices for lining the tunnel, e.g. shuttering
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/003—Linings or provisions thereon, specially adapted for traffic tunnels, e.g. with built-in cleaning devices
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/05—Lining with building materials using compressible insertions
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/08—Lining with building materials with preformed concrete slabs
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/08—Lining with building materials with preformed concrete slabs
- E21D11/086—Methods of making concrete lining segments
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/18—Special adaptations of signalling or alarm devices
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Civil Engineering (AREA)
- Mechanical Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Pipe Accessories (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The invention discloses a stacked multilayer rubber bag sealing structure capable of meeting the requirement of a large gap, which comprises an inner layer rubber bag, a middle stackable rubber bag, an outer layer rubber bag core bag, an inflation tube, an outlet one-way valve, an extension tube, an inner layer bag sealing gasket, a middle bag sealing gasket, an outer layer bag sealing gasket, an inflation tube pressure gauge, an outlet one-way valve pressure gauge, a rubber bag through tube hole and a duct piece. The stacked multilayer rubber bag structure is assembled according to an inner layer, a middle layer and an outer layer, the inner layer rubber bag is fixed in the pipe piece mounting groove, the outer layer rubber bag is attached to surrounding rocks, and the number of the stacked rubber bags can be determined according to actual needs. The shield type TBM pipe piece and surrounding rock large gap can be quickly and effectively sealed, so that the blocking and sealing requirements of backfill grouting are met.
Description
Technical Field
The invention relates to the field of underground engineering surrounding rock deformation control, in particular to a tunnel excavation segment surrounding rock rapid supporting structure and a construction method.
Background
After the rock mass is excavated in the tunnel (cave) engineering, the surrounding rock is deformed due to the readjustment of the stress. The shield type TBM plays a role in temporarily supporting an excavated tunnel section which is not lined yet in the construction process, bears the pressure of a surrounding soil layer, sometimes bears the underground water pressure and keeps underground water out. After excavation and tunneling, the segments are quickly spliced to form a ring, and backfilling and grouting are carried out between the segments and the surrounding rocks so as to achieve the purpose of supporting the surrounding rocks. Simultaneously, in actual work progress, for avoiding backfilling in-process beans gravel and mortar card to die TBM equipment and prevent the production of the not closely knit cavity of top backfill, have the use of single-deck inflation formula rubber bag between section of jurisdiction and country rock, nevertheless meet between shield and the country rock, when the clearance is great between section of jurisdiction and the country rock, the following unfavorable condition of very easily taking place for single-deck inflation formula rubber bag: (1) in the pressurizing process of the contact surface of the rubber bag and the surrounding rock, the local blockage of the surface of the rubber bag can not be uniformly pressurized due to the rugged and rough surrounding rock, so that the rubber bag is damaged when the pressure is less than the designed pressure; (2) after the mould bag is broken, the mould bag is failed, and no remedial or standby measures are taken. Meanwhile, the pressure in the rubber bag is monitored in real time and intelligently adjusted, which is an urgent need of engineering. How to eliminate the above adverse situations on the basis of the existing single-layer expansion type rubber bag construction process without influencing the engineering progress is still a difficult problem to be solved urgently in engineering.
Disclosure of Invention
The invention aims to provide a stacked multilayer rubber bag sealing structure capable of meeting the requirement of large gaps, and solves the problems that the requirement of large gaps between a duct piece and surrounding rocks in tunnel construction, the rubber bag is damaged and has no standby measures, the pressure in a mold bag cannot be monitored in real time and the like in the shield type TBM duct piece expansion type rubber bag supporting structure in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a stacked multilayer rubber bag sealing structure capable of meeting the requirement of a large gap comprises an inner rubber bag, a middle stackable rubber bag, an outer rubber bag core bag, an inflation tube, an outlet one-way valve, an extension tube, an inner bag sealing gasket, a middle bag sealing gasket, an outer bag sealing gasket, an inflation tube pressure gauge, an outlet one-way valve pressure gauge, a rubber bag through tube hole and a duct piece; the inner layer rubber bag is arranged on the innermost layer of the stacked multilayer rubber bag and is attached to the outer surface of the pipe piece; the outer layer rubber bag is arranged on the outermost layer of the stacked multilayer rubber bag and is attached to the surrounding rock; the middle superposable rubber bag is arranged between the inner layer rubber bag and the outer layer rubber bag, and the quantity can be determined according to actual needs; the outer layer rubber bag core bag is arranged in the outer layer rubber bag; the inflation tube penetrates through the inner layer rubber bag, the middle superposable rubber bag, the outer layer rubber bag and the rubber bag through hole on one side of the outer layer rubber bag core bag; the outlet one-way valve is sequentially connected with the inner layer rubber bag, the middle superposable rubber bag, the outer layer rubber bag and the rubber bag through hole on the other side of the outer layer rubber bag core bag; the lengthening pipe is used for lengthening the pipe passing through the pipe hole of the pipe piece by the inflation pipe and the outlet one-way valve of the inner rubber bag; the inner-layer rubber bag sealing gasket is used for sealing gaps among the through hole of the inner-layer rubber bag, the inflation tube and the outlet one-way valve; the outer-layer rubber bag sealing gasket is used for sealing gaps among the through holes of the outer-layer rubber bag and the outer-layer rubber bag core bag, the inflation tube and the outlet one-way valve; the middle bag sealing gasket is used for sealing gaps among the tube penetrating hole of the middle superposable rubber bag, the inflation tube and the outlet one-way valve; the inflation tube pressure gauge is arranged at the orifice of the inflation tube; the outlet one-way valve pressure gauge is arranged at the pipe orifice of the outlet one-way valve extension pipe.
Further, in the above scheme, the duct piece is a main assembly component in the TBM construction, an inner rubber bag installation groove is prefabricated on the outer surface of the duct piece, or grooving is performed after the duct piece is prefabricated, and rubber bag fixing accessories are arranged on the edge of the installation groove. The pipe sheet is provided with two pipe penetrating holes, and holes can be reserved during manufacturing or can be formed after prefabrication is completed.
Further, in the above scheme, the stacked multilayer rubber bag consisting of the inner layer rubber bag, the middle superposable rubber bag and the outer layer rubber bag can expand to a certain thickness after being inflated, so that a gap between the duct piece and the surrounding rock can be filled, the length of the rubber bag can be adjusted and customized according to the length of the duct piece, and the quantity of the middle superposable rubber bags can be increased or decreased according to the size of the gap. The stacked multilayer rubber bag can be pressed into a sheet shape after being pumped out and is arranged in the mounting groove, and the construction of the duct piece is not influenced.
Further, in the above scheme, the length of the extension pipe can be adjusted according to the actual thickness of the pipe piece.
Further, in the above scheme, two pairs of rubber bag through holes are formed in the surfaces of the inner rubber bag and the middle superposable rubber bag.
Further, in the above scheme, two tube penetrating holes are formed in the single-side same side of the outer layer rubber bag and the core bag of the outer layer rubber bag, and the tube penetrating holes of the two layers of bags are consistent in size and are overlapped. The outer rubber bag core bag is arranged in inside the outer rubber bag, the two layers of bags are overlapped and should be customized in a processing plant, and a gap between the two layers of bags is filled with lubricating oil, so that whether the outer rubber bag has the phenomena of blocking, stress concentration and the like or not is guaranteed in the pressurizing process, and the surface of the core bag can be freely deformed all the time and is in an even pressurizing state. Meanwhile, if the outer rubber bag is damaged and fails, the core bag can independently play a role, and the reliability of the whole device is enhanced.
Furthermore, the connection part of the inflation tube and the through hole of each layer of rubber bag is sealed by each sealing gasket, and the part of the inflation tube in each layer of rubber bag has elasticity.
The invention also provides a use method of the stacked multilayer rubber bag closed structure capable of meeting the requirement of large gaps, which comprises the following use steps:
step 1: prefabricating a rubber bag mounting groove and a rubber bag fixing accessory in the duct piece manufacturing process, or grooving the manufactured duct piece to manufacture the rubber bag mounting groove and the rubber bag fixing accessory; two pipe penetrating holes are prefabricated in the pipe piece manufacturing process, or two pipe penetrating holes are formed in the manufactured pipe piece;
step 2: the stacked multilayer rubber bag is assembled according to the inner layer rubber bag, the middle layer stackable rubber bag and the outer layer rubber bag, the rubber bag perforation hole on one side is connected by the outlet one-way valve, the rubber bag perforation hole on the other side is connected by the inflation tube and is arranged in the mounting groove of the duct piece, and the inner layer rubber bag is fixed by the fixing fittings in the mounting groove.
And step 3: the outlet one-way valve and the inflation tube on the inner surface of the inner rubber bag are respectively connected with the lengthening tube and are arranged in the tube penetrating hole of the tube piece, and the outlet end of the inner rubber bag is respectively connected with the outlet one-way valve pressure gauge and the inflation tube pressure gauge.
And 4, step 4: the rubber bag is pumped through the outlet one-way valve and is attached to the rubber bag mounting groove after being flattened;
and 5: installing the pipe pieces one by one according to the steps;
step 6: the rubber bag is inflated through the inflation tube, the air valve is closed after the preset air pressure is reached, and after the whole ring of pipe segments are inflated, the construction of the shield type TBM pipe segments and the surrounding rock large-gap sealing ring is completed.
And 7: the readings of the outlet one-way valve pressure gauge and the inflation tube pressure gauge can be observed at any time, and if the two numerical values are basically consistent, the stacked multilayer rubber bag is good in state; if the reading of the outlet check valve pressure gauge is far larger than that of the inflation tube pressure gauge, the failure of both the outer rubber bag and the core bag is indicated.
Compared with the prior art, the invention has the beneficial effects that: the invention has simple structure, reasonable design, high installation efficiency and high reliability; the invention can quickly and effectively seal the large gap between the shield type TBM pipe piece and the surrounding rock so as to meet the requirement of blocking and sealing of backfill grouting, effectively ensure the backfill quality and the exertion of the pipe piece supporting force under the condition of not influencing the engineering progress, reduce the risk of blocking, prevent the occurrence of locking TBM equipment and greatly embody the advantages of quick and safe construction of the shield type TBM.
Drawings
FIG. 1 is an overall view of the device of the present invention after assembly.
Fig. 2 is an overall front view of the device of the present invention after assembly.
Fig. 3 is an overall right side view of the device of the present invention after assembly.
Fig. 4 is an overall plan view of the device of the present invention after assembly.
Fig. 5 is an overall bottom view of the device of the present invention after assembly.
Fig. 6 is an overall cross-sectional view of the device of the present invention after assembly.
FIG. 7 is a cross-sectional detail view of an outer layer bladder of the present invention.
FIG. 8 is an overall detail view of the inflation tube of the present invention.
Wherein, 1-inner layer rubber bag; 2-the middle part can be overlapped with a rubber bag; 3-outer layer rubber bag; 4-outer layer rubber bag core bag; 5-an inflation tube; 6-outlet check valve; 7-lengthening the pipe; 8-inner bag sealing gasket; 9-middle bag sealing gasket; 10-outer bladder sealing gasket; 11-gas-filled tube pressure gauge; 12-outlet check valve pressure gauge;
13-puncturing the tube holes by using rubber bags; 14-a tube sheet.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. It is to be understood that the embodiments described below are only a portion of the invention, and not all embodiments. All other embodiments obtained without inventive work based on the embodiments of the present invention belong to the protection scope of the present invention.
A can meet the laminated multilayer rubber bag of the large-interval demand, including inner rubber bag 1, can superpose the rubber bag 2 in the middle, outer rubber bag 3, outer rubber bag core bag 4, the gas tube 5, the one-way valve 6 of outlet port, lengthen the tube 7, inner bag seal gasket 8, middle bag seal gasket 9, outer bag seal gasket 10, the gas tube manometer 11, the one-way valve manometer 12 of outlet port, the rubber bag pierces the tube hole 13 and segment 14; the inner layer rubber bag 1 is arranged on the innermost layer of the stacked multilayer rubber bag and is attached to the outer surface of the pipe piece 14; the outer layer rubber bag 3 is arranged on the outermost layer of the stacked multilayer rubber bag and is attached to the surrounding rock; the middle superposable rubber bag 2 is arranged between the inner layer rubber bag 1 and the outer layer rubber bag 3, and the quantity can be determined according to actual needs; the outer layer rubber bag core bag 4 is arranged in the outer layer rubber bag 3; the inflation tube 5 penetrates through the inner layer rubber bag 1, the middle part of the inflation tube can be overlapped with the rubber bag 2, the outer layer rubber bag 3 and the rubber bag through hole 13 at one side of the outer layer rubber bag core bag 4; the outlet one-way valve 6 is sequentially connected with an inner layer rubber bag 1, a middle superposable rubber bag 2, an outer layer rubber bag 3 and a rubber bag through hole 13 on the other side of the outer layer rubber bag core bag 4; the lengthening pipe 7 is used for lengthening the pipe passing through the pipe hole of the pipe piece 14 by the inflation pipe 5 and the outlet check valve 6 of the inner rubber bag 1; the inner-layer rubber bag sealing gasket 8 is used for sealing gaps among the tube penetrating hole 13 of the inner-layer rubber bag 1, the inflation tube 5 and the outlet one-way valve 6; the outer-layer rubber bag sealing gasket 10 is used for sealing gaps among the tube penetrating holes 13 of the outer-layer rubber bag 3 and the outer-layer rubber bag core bag 4, the inflation tube 5 and the outlet one-way valve 6; the middle bag sealing gasket 9 is used for sealing the gaps among the tube penetrating hole 13 of the middle superposable rubber bag 2, the inflation tube 5 and the outlet one-way valve 6; the inflation tube pressure gauge 11 is arranged at the tube orifice of the inflation tube extension tube 7; an outlet check valve pressure gauge 12 is arranged at the pipe orifice of the outlet check valve extension pipe 7.
In the scheme, the duct piece 14 is a main assembly component in TBM construction, an inner-layer rubber bag installation groove is prefabricated on the outer surface of the duct piece, or grooving is carried out after the duct piece is prefabricated, and rubber bag fixing accessories are arranged on the edge of the installation groove; the duct piece 14 is provided with two through holes which can be reserved during manufacturing or can be perforated after prefabrication. Outer rubber bag core 4 is arranged in inside outer rubber bag 3, two-layer bag overlap should be in the processing factory customization, and the space between two-layer bag is full of lubricating oil to guarantee at the pressurized in-process, no matter whether outer rubber bag appears the phenomenon such as block, stress concentration, but core bag surface free deformation is in even pressurization state all the time. Meanwhile, if the outer rubber bag is damaged and fails, the core bag can independently play a role, and the reliability of the whole device is enhanced.
The use method of the stacked multilayer rubber bag closed structure capable of meeting the requirement of large gaps comprises the following use steps:
step 1: prefabricating a rubber bag mounting groove and a rubber bag fixing accessory in the manufacturing process of the duct piece 14, or grooving the manufactured duct piece to manufacture the rubber bag mounting groove and the rubber bag fixing accessory; two perforated pipe holes are prefabricated in the manufacturing process of the pipe piece 14, or two perforated pipe holes are formed in the manufactured pipe piece;
step 2: the overlapped multilayer rubber bag is assembled according to an inner layer rubber bag 1, a middle superposable rubber bag 2 and an outer layer rubber bag 3, a rubber bag through hole 13 on one side is connected by an outlet one-way valve 6, a rubber bag through hole 13 on the other side is connected by an inflation tube 5 and is arranged in a mounting groove of a duct piece 14, and the inner layer rubber bag 1 is fixed by a fixing accessory in the mounting groove.
And step 3: an outlet one-way valve 6 and an inflation tube 5 on the inner surface of the inner rubber bag 1 are respectively connected with an extension tube 7, are arranged in a tube penetrating hole of a tube piece 14, and are respectively connected with an outlet one-way valve pressure gauge 12 and an inflation tube pressure gauge 11 at the outlet end.
And 4, step 4: the rubber bag is pumped through the outlet one-way valve 6 and is attached to the rubber bag mounting groove after being flattened;
and 5: installing the pipe pieces one by one according to the steps;
step 6: the rubber bag is inflated through the inflation tube 5, the air valve is closed after the preset air pressure is reached, and the construction of the shield type TBM pipe piece and the surrounding rock large-gap sealing ring is completed after the whole pipe piece is inflated.
And 7: the readings of the outlet one-way valve pressure gauge 12 and the gas-filled tube pressure gauge 11 can be observed at any time, and if the two numerical values are basically consistent, the stacked multilayer rubber bag has good state; if the reading of the outlet check valve pressure gauge 12 is far larger than that of the inflation tube pressure gauge 11, the failure of the outer rubber bag and the failure of the core bag are indicated.
It is obvious that the invention is not restricted to the details of the above-described embodiments. The above-described embodiments should be regarded as illustrative rather than restrictive. The scope of the invention is defined by the appended claims, and all changes that come within the meaning and range of equivalency of the claims are intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
In addition, the present specification should be considered as a whole, the above-mentioned embodiments are not the only independent technical solutions of the present invention, and the technical solutions in the embodiments can be properly combined and adjusted to form other embodiments which can be understood by those skilled in the art.
Claims (6)
1. The utility model provides a can satisfy range upon range of multilayer rubber bag enclosed construction of big clearance demand, includes inlayer rubber bag (1), middle superposable rubber bag (2), outer rubber bag (3), outer rubber bag core bag (4), gas tube (5), export check valve (6), inlayer bag seal gasket (8), middle bag seal gasket (9), outer bag seal gasket (10), gas tube manometer (11), export check valve manometer (12), rubber bag poling hole (13) and section of jurisdiction (14), its characterized in that: the inner layer rubber bag (1) is arranged at the innermost layer of the stacked multilayer rubber bag and is attached to the outer surface of the pipe piece (14); the outer layer rubber bag (3) is arranged on the outermost layer of the stacked multilayer rubber bag and is attached to the surrounding rock; the middle superposable rubber bags (2) are arranged between the inner layer rubber bag (1) and the outer layer rubber bag (3), and the quantity is determined according to actual needs; the outer layer rubber bag core bag (4) is arranged in the outer layer rubber bag (3); a rubber bag through hole (13) is formed in one side of the inflation tube (5) which penetrates through the inner rubber bag (1), the middle superposable rubber bag (2), the outer rubber bag (3) and the outer rubber bag core bag (4); the outlet one-way valve (6) is sequentially connected with the inner layer rubber bag (1), the middle superposable rubber bag (2), the outer layer rubber bag (3) and the other side of the outer layer rubber bag core bag (4) and is also provided with a rubber bag through hole (13); the inflation tube pressure gauge (11) is arranged at the tube opening of the inflation tube lengthening tube (7); an outlet one-way valve pressure gauge (12) is arranged at the opening of the outlet one-way valve extension pipe (7), an inner-layer rubber bag installation groove is prefabricated on the outer surface of the pipe piece (14), or grooving is carried out after the prefabrication of the pipe piece is finished, and rubber bag fixing accessories are arranged on the edge of the installation groove; the pipe piece (14) is provided with two pipe penetrating holes, holes can be reserved or pre-formed in the pipe piece after the pipe piece is manufactured, a stacked multilayer rubber bag consisting of the inner layer rubber bag (1), the middle stackable rubber bag (2) and the outer layer rubber bag (3) can expand to a certain thickness after being inflated, a gap between the pipe piece (14) and surrounding rocks can be filled, the length of the rubber bag is adjusted and customized according to the length of the pipe piece (14), and the number of stacked middle stackable rubber bags (2) is increased or decreased according to the size of the gap; the stacked multilayer rubber bag is pressed into a sheet shape after being pumped out and is arranged in the mounting groove.
2. The stacked multilayer rubber bag sealing structure capable of meeting the requirement of large clearance as claimed in claim 1, wherein the lengthening pipe (7) is used for lengthening the pipeline of the tube piece (14) through the tube hole of the inflation pipe (5) and the outlet check valve (6) of the inner layer rubber bag (1); the length of the lengthening pipe (7) is adjusted according to the actual thickness of the pipe piece (14).
3. The stacked multilayer rubber bag closing structure capable of meeting the requirement of large gap according to claim 1, wherein two pairs of rubber bag through holes (13) are formed in the surfaces of the inner layer rubber bag (1) and the middle stackable rubber bag (2).
4. The stacked multilayer rubber bag closed structure capable of meeting the requirement of large clearance according to claim 1, wherein two through holes are formed in one side of the outer layer rubber bag (3) and the outer layer rubber bag core bag (4), and the through holes (13) of the two layers of bags are consistent in size and overlapped; the outer layer rubber bag core bag (4) is arranged inside the outer layer rubber bag (3), and a gap between the two layers of bags is filled with lubricating oil.
5. The stacked multilayer rubber bag sealing structure capable of meeting the requirement of large clearance according to claim 1, characterized in that an inner bag sealing gasket (8) is arranged between the tube penetrating hole (13) of the inner rubber bag (1) and the gaps of the inflation tube (5) and the outlet check valve (6); an outer-layer bag sealing gasket (10) is arranged in a gap between a tube penetrating hole (13) of the outer-layer rubber bag (3) and the outer-layer rubber bag core bag (4) and the inflation tube (5) and the outlet one-way valve (6); a middle bag sealing gasket (9) is arranged in the gap between the tube hole (13) of the middle superposable rubber bag (2) and the air charging tube (5) and the outlet one-way valve (6).
6. A method for using the stacked multilayer rubber bladder sealing structure capable of meeting the requirement of large gap according to any one of claims 1 to 5, which comprises the following steps:
step 1: prefabricating a rubber bag mounting groove and a rubber bag fixing accessory in the manufacturing process of the duct piece (14), or grooving the manufactured duct piece to manufacture the rubber bag mounting groove and the rubber bag fixing accessory; two perforated pipe holes are prefabricated in the manufacturing process of the pipe piece (14), or two perforated pipe holes are formed in the manufactured pipe piece;
step 2: the stacked multilayer rubber bag is assembled according to an inner layer rubber bag (1), a middle stackable rubber bag (2) and an outer layer rubber bag (3), wherein rubber bag through holes (13) on one side are connected through an outlet one-way valve (6), rubber bag through holes (13) on the other side are connected through an inflation tube (5) and are arranged in a mounting groove of a duct piece (14), and the inner layer rubber bag (1) is fixed through a fixing accessory in the mounting groove;
and step 3: an outlet one-way valve (6) and an inflation tube (5) on the inner surface of the inner rubber bag (1) are respectively connected with the lengthening tube (7) and are arranged in a tube penetrating hole of the tube piece (14), and the outlet end of the inner rubber bag is respectively connected with an outlet one-way valve pressure gauge (12) and an inflation tube pressure gauge (11);
and 4, step 4: the rubber bag is pumped through the outlet one-way valve (6) and is attached to the rubber bag mounting groove after being flattened;
and 5: repeating the steps 1-4, and installing the duct pieces;
step 6: the rubber bag is inflated through the inflation tube (5), the air valve is closed after the preset air pressure is reached, and the construction of the shield type TBM duct piece and the surrounding rock large-gap sealing ring is completed after the whole duct piece is inflated;
and 7: the readings of the outlet one-way valve pressure gauge (12) and the gas-filled tube pressure gauge (11) are observed at any time, and if the two numerical values are basically consistent, the stacked multilayer rubber bag is in a good state; if the reading of the outlet check valve pressure gauge (12) is far larger than the reading of the inflation tube pressure gauge (11), the outer rubber bag and the core bag are both failed.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010177048.5A CN111425211B (en) | 2020-03-13 | 2020-03-13 | Stacked multilayer rubber bag sealing structure capable of meeting large-gap requirement and using method thereof |
| AU2020102548A AU2020102548A4 (en) | 2020-03-13 | 2020-10-01 | Stacked multilayer rubber bag seal structure suitable for large gaps and method of use thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010177048.5A CN111425211B (en) | 2020-03-13 | 2020-03-13 | Stacked multilayer rubber bag sealing structure capable of meeting large-gap requirement and using method thereof |
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| CN111425211A CN111425211A (en) | 2020-07-17 |
| CN111425211B true CN111425211B (en) | 2021-11-02 |
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| CN113202505B (en) * | 2021-05-29 | 2024-04-05 | 浙江神州科技化工有限公司 | Subway segment gap sealing construction process |
| CN114000378A (en) * | 2021-09-29 | 2022-02-01 | 东南大学 | Shield tunnel and prefabricated vibration reduction type back cover segment thereof |
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| CN205135654U (en) * | 2015-11-13 | 2016-04-06 | 长安大学 | Fill exhaust formula tunnel secondary lining formworking jumbo end template |
| CN106437757A (en) * | 2016-10-10 | 2017-02-22 | 三峡大学 | Tire type lining structure between tunnel and shield lining segment and method |
| CN107100652A (en) * | 2017-05-19 | 2017-08-29 | 中国矿业大学(北京) | A kind of compliant impact resistant method for protecting support and device |
| CN107587883A (en) * | 2017-08-25 | 2018-01-16 | 中国水利水电科学研究院 | A kind of shield formula TBM section of jurisdiction rockfill grouting expansion type locking devices and construction method |
| CN107605496A (en) * | 2017-08-07 | 2018-01-19 | 北京市市政四建设工程有限责任公司 | A kind of tail sealing device of shield |
| CN109763837A (en) * | 2019-02-28 | 2019-05-17 | 中国水利水电第四工程局有限公司 | A kind of TBM tunnel film bag cement stops paste structure and construction method |
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2020
- 2020-03-13 CN CN202010177048.5A patent/CN111425211B/en not_active Expired - Fee Related
- 2020-10-01 AU AU2020102548A patent/AU2020102548A4/en active Active
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| US4895480A (en) * | 1987-09-11 | 1990-01-23 | Signode Corporation | Method and apparatus for formation of a tunnel lining |
| CN205135654U (en) * | 2015-11-13 | 2016-04-06 | 长安大学 | Fill exhaust formula tunnel secondary lining formworking jumbo end template |
| CN106437757A (en) * | 2016-10-10 | 2017-02-22 | 三峡大学 | Tire type lining structure between tunnel and shield lining segment and method |
| CN107100652A (en) * | 2017-05-19 | 2017-08-29 | 中国矿业大学(北京) | A kind of compliant impact resistant method for protecting support and device |
| CN107605496A (en) * | 2017-08-07 | 2018-01-19 | 北京市市政四建设工程有限责任公司 | A kind of tail sealing device of shield |
| CN107587883A (en) * | 2017-08-25 | 2018-01-16 | 中国水利水电科学研究院 | A kind of shield formula TBM section of jurisdiction rockfill grouting expansion type locking devices and construction method |
| CN109763837A (en) * | 2019-02-28 | 2019-05-17 | 中国水利水电第四工程局有限公司 | A kind of TBM tunnel film bag cement stops paste structure and construction method |
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| CN111425211A (en) | 2020-07-17 |
| AU2020102548A4 (en) | 2020-11-19 |
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