AU2020102548A4 - Stacked multilayer rubber bag seal structure suitable for large gaps and method of use thereof - Google Patents
Stacked multilayer rubber bag seal structure suitable for large gaps and method of use thereof Download PDFInfo
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- AU2020102548A4 AU2020102548A4 AU2020102548A AU2020102548A AU2020102548A4 AU 2020102548 A4 AU2020102548 A4 AU 2020102548A4 AU 2020102548 A AU2020102548 A AU 2020102548A AU 2020102548 A AU2020102548 A AU 2020102548A AU 2020102548 A4 AU2020102548 A4 AU 2020102548A4
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- rubber bag
- bag
- pipe
- rubber
- segment
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- 238000000034 method Methods 0.000 title claims description 5
- 238000007789 sealing Methods 0.000 claims abstract description 38
- 239000011435 rock Substances 0.000 claims abstract description 23
- 238000010276 construction Methods 0.000 claims description 14
- 238000004519 manufacturing process Methods 0.000 claims description 11
- 239000010687 lubricating oil Substances 0.000 claims description 3
- 238000009417 prefabrication Methods 0.000 claims description 3
- 239000010410 layer Substances 0.000 description 9
- 238000009412 basement excavation Methods 0.000 description 3
- 239000002356 single layer Substances 0.000 description 3
- 230000002708 enhancing effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000008707 rearrangement Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000246 remedial effect Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK 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
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK 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 OR ROCK 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
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK 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
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK 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 OR ROCK 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
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK 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 OR ROCK 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
Landscapes
- 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 disclosure provides a stacked multilayer rubber bag seal structure suitable
for large gaps, including an inner rubber bag, an intermediate stackable rubber bag,
an outer rubber bag, an outer rubber core bag, an inflating pipe, a one-way outlet
valve, extension pipes, inner bag sealing gaskets, intermediate bag sealing gaskets,
outer bag sealing gaskets, an inflating pipe pressure gauge, a one-way outlet valve
pressure gauge, rubber bag pipe-passing holes, and a segment. The stacked
multilayer rubber bag structure is assembled in an order of inner layer, intermediate
layer and outer layer; the inner rubber bag is secured in a mounting groove of the
segment; the outer rubber bag abuts on the surrounding rock mass; and the
number of intermediate stackable rubber bags can be determined as required in
practice. The stacked multilayer rubber bag seal structure suitable for large gaps is
capable of rapidly and effectively sealing a large gap between shield Tunnel Boring
Machine (TBM) segments and the surrounding rock mass, thereby meeting the
requirement of blockage and sealing of backfill grouting.
1/4
9 8
3
14' 6
127
7
FIG. 1
9 10, 5
1
14 8
12 8
7 '
FIG. 2
Description
1/4
9 8
3
14' 6
127 7
FIG. 1
9 10, 5
1
14 8
12 8 7 '
FIG. 2
The disclosure relates to the field of surrounding rock deformation control in
underground engineering, and in particular, to a rapid support structure for rock
mass surrounding segments in tunnel excavation and a construction method thereof.
In a tunnel project, stress rearrangement after rock mass excavation may result
in deformation of the surrounding rock mass. During construction, a shield Tunnel
Boring Machine (TBM) can serve to temporarily support an excavated unlined tunnel
section, bear the pressure of the surrounding soil mass, and sometimes bear
underground water pressure and keep underground water out. After excavation,
segments are rapidly jointed into a ring, and backfill grouting is carried out between
the segments and the surrounding rock mass to achieve the purpose of supporting
the surrounding rock mass. Moreover, during actual construction, to avoid locking of
the TBM by pea gravel and mortar during backfilling and prevent formation of cavity
due to uncompacted top backfilling, there has been use of a single-layer inflatable
rubber bag between a segment and the surrounding rock mass. However, in case of
large gaps between a shield and the surrounding rock mass and between a segment
and the surrounding rock mass, the single-layer inflatable rubber bag is very likely
to have the following disadvantages: (1) the contact surface of the rubber bag with
the surrounding rock mass is broken under a pressure less than a designed value
because part of surface of the rubber bag cannot bear the pressure uniformly due to
rugged surrounding rock mass during pressurization; and (2) no remedial or
standby measure is provided for the failure of the broken mold bag. Furthermore, there is an urgent need to monitor the pressure in the rubber bag in real time and adjust the pressure intelligently. It is still a problem to be solved in construction to eliminate the above disadvantages without affecting the construction progress based on existing single-layer inflatable rubber bag construction process.
The disclosure aims to provide a stacked multilayer rubber bag seal structure
suitable for a large gap, which is intended to solve, in an inflatable rubber bag
support structure with shield TBM segments, the problems of requirement of a large
gap between a segment and the surrounding rock mass, rubber bag breakage
without standby measure, and failure to monitor the pressure in a mold bag in real
time, etc. mentioned in the above background art.
To achieve the above objectives, the disclosure provides the following technical
solution.
A stacked multilayer rubber bag seal structure suitable for a large gap includes
an inner rubber bag, an intermediate stackable rubber bag, an outer rubber bag, an
outer rubber core bag, an inflating pipe, a one-way outlet valve, extension pipes,
inner bag sealing gaskets, intermediate bag sealing gaskets, outer bag sealing
gaskets, an inflating pipe pressure gauge, a one-way outlet valve pressure gauge,
rubber bag pipe-passing holes, and a segment, where the inner rubber bag is
arranged at the innermost layer of the stacked multilayer rubber bag to abut on an
outer surface of the segment; the outer rubber bag is arranged at the outermost
layer of the stacked multilayer rubber bag to abut on surrounding rock mass; the
intermediate stackable rubber bag is arranged between the inner rubber bag and
the outer rubber bag, with the number thereof being determined as required in
practice; the outer rubber core bag is arranged in the outer rubber bag; the inflating
pipe passes through the rubber bag pipe-passing holes that are formed on one sides of the inner rubber bag, the intermediate stackable rubber bag, the outer rubber bag and the outer rubber core bag; the one-way outlet valve is sequentially connected to rubber bag pipe-passing holes that are formed on the other sides of the inner rubber bag, the intermediate stackable rubber bag, the outer rubber bag and the outer rubber core bag; the extension pipes are used to meet the need of extension of pipe for the inflating pipe and the one-way outlet valve of the inner rubber bag to pass through the pipe-passing holes of the segment; the inner bag sealing gaskets are used for sealing gaps between the pipe-passing hole of the inner rubber bag, and the inflating pipe and the one-way outlet valve; the outer bag sealing gaskets are used for sealing gaps between the pipe-passing holes of the outer rubber bag and the outer rubber core bag, and the inflating pipe and the one way outlet valve; the intermediate bag sealing gaskets are used for sealing gaps between the pipe-passing hole of the intermediate stackable rubber bag, and the inflating pipe and the one-way outlet valve; the inflating pipe pressure gauge is arranged at an orifice of the inflating pipe; and the one-way outlet valve pressure gauge is arranged at an orifice of the extension pipe for the one-way outlet valve.
Further, in the above solution, the segment is a major assembly member in
Tunnel Boring Machine (TBM) construction; an inner rubber bag mounting groove is
preformed in the outer surface of the segment, or a groove is formed in a
prefabricated segment, and a rubber bag securing fitting is arranged at an edge of
the mounting groove. Two pipe-passing holes are formed in the segment, which can
be formed during fabrication or after completion of prefabrication.
Further, in the above solution, the stacked multilayer rubber bag composed of
the inner rubber bag, the intermediate stackable rubber bag and the outer rubber
bag can be inflated to a certain thickness to fill a gap between the segment and the
surrounding rock mass; a length of the rubber bag is adaptable according to a length of the segment; and the number of stacked intermediate stackable rubber bags is increased or reduced according to a gap size. The stacked multilayer rubber bag is compressible into a slice form to be placed in the mounting groove after being evacuated without affecting the construction of the segment.
Further, in the above solution, a length of the extension pipe is adaptable
according to an actual thickness of the segment.
Further, in the above solution, two pairs of aligned rubber bag pipe-passing
holes are formed in the surfaces of the inner rubber bag and the intermediate
stackable rubber bag.
Further, in the above solution, two pipe-passing holes are formed in a same side
of the outer rubber bag and the outer rubber core bag, and the pipe-passing holes
of the two layers of bags are consistent and coincide in size. The outer rubber core
bag is arranged inside the outer rubber bag. Overlapping of the two layers of bags
should be made in a fabrication plant, and the space between the two layers of bags
is full of a lubricating oil to ensure that the surface of the core bag is always capable
of free deformation to be uniformly pressurized regardless of locking, stress
concentration and so on of the outer rubber bag during pressurization. Moreover, in
case of a failure of breakage of the outer rubber bag, the core bag can function
independently, thereby enhancing the reliability of the whole arrangement.
Further, the joints of the inflating pipe with the pipe-passing holes of the
different rubber bags are sealed by different sealing gaskets, and the inflating pipe
is extensible in different rubber bags.
The disclosure also provides a method of use of the stacked multilayer rubber
bag seal structure suitable for a large gap, including the following use steps:
step 1: preforming the rubber bag mounting groove and the rubber bag
securing fitting during the fabrication of the segment, or opening a groove in the fabricated segment to form the rubber bag mounting groove and the rubber bag securing fitting; and preforming two pipe-passing holes during the fabrication of the segment, or forming two pipe-passing holes in the fabricated segment; step 2: assembling the inner rubber bag, the intermediate stackable rubber bag and outer rubber bag sequentially into the stacked multilayer rubber bag, connecting the rubber bag pipe-passing holes on one sides with the one-way outlet valve and the rubber bag pipe-passing holes on the other sides with the inflating pipe, placing the stacked multilayer rubber bag in the mounting groove of the segment, and securing the inner rubber bag by the securing fitting in the mounting groove; step 3: connecting the one-way outlet valve and the inflating pipe on an inner surface of the inner rubber bag to the extension pipes, respectively, and placing the connected extension pipes in the pipe-passing holes of the segment, and connecting outlet ends thereof to the one-way outlet valve pressure gauge and the inflating pipe pressure gauge, respectively; step 4: evacuating the rubber bag through the one-way outlet valve, so that the flattened rubber bag abuts on the rubber bag mounting groove therein; step 5: mounting segments one by one according to the above steps; step 6: inflating the rubber bag through the inflating pipe, closing the valve after a predetermined pressure is achieved, and finishing the construction of a sealing ring for a large gap between shield TBM segments and the surrounding rock mass after completion of inflation for an entire segment ring; and step 7: observing readings of the one-way outlet valve pressure gauge and the inflating pipe pressure gauge at any time, where the stacked multilayer rubber bag is in good condition when the two readings are basically the same; and the outer rubber bag and the core bag have failed when the reading of the one-way outlet valve pressure gauge is much larger than the reading of the inflating pipe pressure gauge.
Compared with the prior art, the disclosure has the following beneficial effects:
simple structure, reasonable design, high efficiency of mounting, and high reliability;
rapid and effective sealing of a large gap between shield TBM segments and the
surrounding rock mass to meet the requirement of blockage and sealing of backfill
grouting, effective guarantee of backfilling quality and functioning of the segment
support without affecting the construction progress, and reduction of machine
jamming risk, prevention of TBM locking, thereby greatly reflecting the advantages
of rapid and safe construction of the shield TBM.
FIG. 1 is a global view of an assembled arrangement according to the disclosure.
FIG. 2 is a global front view of an assembled arrangement according to the
disclosure.
FIG. 3 is a global right view of an assembled arrangement according to the
disclosure.
FIG. 4 is a global top view of an assembled arrangement according to the
disclosure.
FIG. 5 is a global bottom view of an assembled arrangement according to the
disclosure.
FIG. 6 is a global cross-section view of an assembled arrangement according to
the disclosure.
FIG. 7 is a detailed cross-section view of an outer rubber bag according to the
disclosure.
FIG. 8 is a global detailed view of an inflating pipe according to the disclosure.
Reference numerals: 1-inner rubber bag, 2-intermediate stackable rubber bag,
3-outer rubber bag, 4-outer rubber core bag, 5-inflating pipe, 6-one-way outlet
valve, 7-extension pipe, 8-inner bag sealing gasket, 9-intermediate bag sealing
gasket, 10-outer bag sealing gasket, 11-inflating pipe pressure gauge, 12-one-way
outlet valve pressure gauge, 13-rubber bag pipe-passing hole, and 14-segment.
The technical solutions in examples of the disclosure will be described clearly
and completely describes in conjunction with the accompanying drawings in the
examples of the disclosure. It should be understood that the examples described
below are merely a part rather than all of the examples of the disclosure. All other
examples obtained by those skilled in the art based on the examples of the
disclosure without creative efforts shall fall within the protection scope of the
disclosure.
A stacked multilayer rubber bag seal structure suitable for a large gap includes
an inner rubber bag 1, an intermediate stackable rubber bag 2, an outer rubber bag
3, an outer rubber core bag 4, an inflating pipe 5, a one-way outlet valve 6,
extension pipes 7, inner bag sealing gaskets 8, intermediate bag sealing gaskets 9,
outer bag sealing gaskets 10, an inflating pipe pressure gauge 11, a one-way outlet
valve pressure gauge 12, rubber bag pipe-passing holes 13, and a segment 14,
where the inner rubber bag 1 is arranged at the innermost layer of the stacked
multilayer rubber bag to abut on an outer surface of the segment 14; the outer
rubber bag 3 is arranged at the outermost layer of the stacked multilayer rubber
bag to abut on surrounding rock mass; the intermediate stackable rubber bag 2 is
arranged between the inner rubber bag 1 and the outer rubber bag 3, with the
number thereof being determined as required in practice; the outer rubber core bag
4 is arranged in the outer rubber bag 3; the inflating pipe 5 passes through the
rubber bag pipe-passing holes 13 that are formed on one sides of the inner rubber bag 1, the intermediate stackable rubber bag 2, the outer rubber bag 3 and the outer rubber core bag 4; the one-way outlet valve 6 is sequentially connected to rubber bag pipe-passing holes 13 that are formed on the other sides of the inner rubber bag 1, the intermediate stackable rubber bag 2, the outer rubber bag 3 and the outer rubber core bag 4; the extension pipes 7 are used to meet the need of extension of pipe for the inflating pipe 5 and the one-way outlet valve 6 of the inner rubber bag 1 to pass through the pipe-passing holes of the segment 14; the inner bag sealing gaskets 8 are used for sealing gaps between the pipe-passing hole 13 of the inner rubber bag 1, and the inflating pipe 5 and the one-way outlet valve 6; the outer bag sealing gaskets 10 are used for sealing gaps between the pipe-passing holes 13 of the outer rubber bag 3 and the outer rubber core bag 4, and the inflating pipe 5 and the one-way outlet valve 6; the intermediate bag sealing gaskets 9 are used for sealing gaps between the pipe-passing hole 13 of the intermediate stackable rubber bag 2, and the inflating pipe 5 and the one-way outlet valve 6; the inflating pipe pressure gauge 11 is arranged at an orifice of the extension pipe 7 for the inflating pipe; and the one-way outlet valve pressure gauge
12 is arranged at an orifice of the extension pipe 7 for the one-way outlet valve.
Further, in the above solution, the segment 14 is a major assembly member in
Tunnel Boring Machine (TBM) construction; an inner rubber bag mounting groove is
preformed in the outer surface of the segment, or a groove is formed in a
prefabricated segment, and a rubber bag securing fitting is arranged at an edge of
the mounting groove. Two pipe-passing holes are formed in the segment 14, which
can be formed during fabrication or after completion of prefabrication. The outer
rubber core bag 4 is arranged inside the outer rubber bag 3. Overlapping of the two
layers of bags should be made in a fabrication plant, and the space between the two
layers of bags is full of a lubricating oil to ensure that the surface of the core bag is always capable of free deformation to be uniformly pressurized regardless of locking, stress concentration and so on of the outer rubber bag during pressurization.
Moreover, in case of a failure of breakage of the outer rubber bag, the core bag can
function independently, thereby enhancing the reliability of the whole arrangement.
A method of use of the stacked multilayer rubber bag seal structure suitable for
a large gap includes the following use steps:
step 1: preform the rubber bag mounting groove and the rubber bag securing
fitting during the fabrication of the segment 14, or open a groove in the fabricated
segment to form the rubber bag mounting groove and the rubber bag securing
fitting; and preform two pipe-passing holes during the fabrication of the segment 14,
or form two pipe-passing holes in the fabricated segment;
step 2: assemble the inner rubber bag 1, the intermediate stackable rubber bag
2 and outer rubber bag 3 sequentially into the stacked multilayer rubber bag,
connect the rubber bag pipe-passing holes 13 on one sides with the one-way outlet
valve 6 and the rubber bag pipe-passing holes 13 on the other sides with the
inflating pipe 5, place the stacked multilayer rubber bag in the mounting groove of
the segment 14 and secure the inner rubber bag 1 by the securing fitting in the
mounting groove;
step 3: connect the one-way outlet valve 5 and the inflating pipe 6 on an inner
surface of the inner rubber bag 1 to the extension pipes 7, respectively, and place
the connected extension pipes in the pipe-passing holes of the segment 14, and
connect outlet ends thereof to the one-way outlet valve pressure gauge 12 and the
inflating pipe pressure gauge 11, respectively;
step 4: evacuate the rubber bag through the one-way outlet valve 6, so that the
flattened rubber bag abuts on the rubber bag mounting groove therein;
step 5: mount segments one by one according to the above steps; step 6: inflate the rubber bag through the inflating pipe 5, close the valve after a predetermined pressure is achieved, and finish the construction of a sealing ring for a large gap between shield TBM segments and the surrounding rock mass after completion of inflation for an entire segment ring; and step 7: observe readings of the one-way outlet valve pressure gauge 12 and the inflating pipe pressure gauge 11 at any time, where the stacked multilayer rubber bag is in good condition when the two readings are basically the same; and the outer rubber bag and the core bag have failed when the reading of the one-way outlet valve pressure gauge 12 is much larger than the reading of the inflating pipe pressure gauge 11.
Apparently, the disclosure is not limited to the details of the above examples.
The above examples should be construed as exemplary rather than limiting. The
scope of the disclosure is defined by the appended claims, and encompasses all
variations falling within the meaning and scope of equivalent elements of the claims.
Any reference numeral in the claims should not be considered as limiting on the
involved claims.
In addition, this specification should be regarded as a whole. The above
implementations are not unique independent technical solutions of the disclosure.
The technical solutions in the examples can be appropriately combined and
regulated to arrive at other implementations understandable by a person skilled in
the art.
Claims (6)
1.A stacked multilayer rubber bag seal structure suitable for large gaps,
comprising an inner rubber bag (1), an intermediate stackable rubber bag (2), an
outer rubber bag (3), an outer rubber core bag (4), an inflating pipe (5), a one-way
outlet valve (6), inner bag sealing gaskets (8), intermediate bag sealing gaskets (9),
outer bag sealing gaskets (10), an inflating pipe pressure gauge (11), a one-way
outlet valve pressure gauge (12), rubber bag pipe-passing holes (13), and a
segment (14), wherein the inner rubber bag (1) is arranged at the innermost layer
of the stacked multilayer rubber bag to abut on an outer surface of the segment
(14); the outer rubber bag (3) is arranged at the outermost layer of the stacked
multilayer rubber bag to abut on surrounding rock mass; the intermediate stackable
rubber bag (2) is arranged between the inner rubber bag (1) and the outer rubber
bag (3), with the number thereof being determined as required in practice; the
outer rubber core bag (4) is arranged in the outer rubber bag (3); the inflating pipe
(5) passes through the rubber bag pipe-passing holes (13) that are formed on one
sides of the inner rubber bag (1), the intermediate stackable rubber bag (2), the
outer rubber bag (3) and the outer rubber core bag (4); the one-way outlet valve (6)
is sequentially connected to the rubber bag pipe-passing holes (13) that are formed
on the other sides of the inner rubber bag (1), the intermediate stackable rubber
bag (2), the outer rubber bag (3) and the outer rubber core bag (4); the inflating
pipe pressure gauge (11) is arranged at an orifice of an extension pipe (7) for the
inflating pipe; and the one-way outlet valve pressure gauge (12) is arranged at an
orifice of an extension pipe (7) for the one-way outlet valve.
2. The stacked multilayer rubber bag seal structure suitable for large gaps
according to claim 1, wherein an inner rubber bag mounting groove is preformed in
the outer surface of the segment (14), or a groove is formed in a prefabricated segment, and a rubber bag securing fitting is arranged at an edge of the mounting groove; two pipe-passing holes are formed in the segment (14), which can be formed during fabrication or after completion of prefabrication.
3. The stacked multilayer rubber bag seal structure suitable for large gaps
according to claim 1, wherein the stacked multilayer rubber bag composed of the
inner rubber bag (1), the intermediate stackable rubber bag (2) and the outer
rubber bag (3) can be inflated to a certain thickness to fill a gap between the
segment (14) and the surrounding rock mass; a length of the rubber bag is
adaptable according to a length of the segment (14); the number of stacked
intermediate stackable rubber bags (2) is increased or reduced according to a gap
size; and the stacked multilayer rubber bag is compressible into a slice form to be
placed in the mounting groove after being evacuated.
4. The stacked multilayer rubber bag seal structure suitable for large gaps
according to claim 1, wherein the extension pipes (7) are used to meet the need of
extension of pipe for the inflating pipe (5) of the inner rubber bag (1) and the one
way outlet valve (6) to pass through the pipe-passing holes of the segment (1); and
a length of the extension pipe (7) is adaptable according to an actual thickness of
the segment (14);
wherein two pairs of aligned rubber bag pipe-passing holes (13) are formed in
the surfaces of the inner rubber bag (1) and the intermediate stackable rubber bag
(2);
wherein two pipe-passing holes are in a same side of the outer rubber bag (3)
and the outer rubber core bag (4), and the pipe-passing holes (13) of the two layers
of bags are consistent and coincide in size; and the outer rubber core bag (4) is
arranged inside the outer rubber bag (3), with space between the two layers of bags
being full of a lubricating oil; wherein the inner bag sealing gaskets (8) are arranged in gaps between the pipe-passing hole (13) of the inner rubber bag (1), and the inflating pipe (5) and the one-way outlet valve (6); the outer bag sealing gaskets (10)are arranged in gaps between the pipe-passing holes (13) of the outer rubber bag (3) and the outer rubber core bag (4), and the inflating pipe (5) and the one-way outlet valve (6); and the intermediate bag sealing gaskets (9) are arranged in gaps between the pipe-passing hole (13) of the stackable rubber bag (2), and the inflating pipe (5) and the one-way outlet valve (6).
5. A method of use of the stacked multilayer rubber bag seal structure suitable
for large gaps according to any one of claims 1-4, comprising the following use
steps:
step 1: preforming the rubber bag mounting groove and the rubber bag
securing fitting during the fabrication of the segment (14), or opening a groove in
the fabricated segment to form the rubber bag mounting groove and the rubber bag
securing fitting; and preforming two pipe-passing holes during the fabrication of the
segment (14), or forming two pipe-passing holes in the fabricated segment;
step 2: assembling the inner rubber bag (1), the intermediate stackable rubber
bag (2) and outer rubber bag (3) sequentially into the stacked multilayer rubber
bag, connecting the rubber bag pipe-passing holes (13) on one sides with the one
way outlet valve (6) and the rubber bag pipe-passing holes (13) on the other sides
with the inflating pipe (5), placing the stacked multilayer rubber bag in the
mounting groove of the segment (14), and securing the inner rubber bag (1) by the
securing fitting in the mounting groove;
step 3: connecting the one-way outlet valve (6) and the inflating pipe (5) on an
inner surface of the inner rubber bag (1) to the extension pipes (7), respectively,
and placing the connected extension pipes in the pipe-passing holes of the segment
(14), and connecting outlet ends thereof to the one-way outlet valve pressure
gauge (12) and the inflating pipe pressure gauge (11), respectively;
step 4: evacuating the rubber bag through the one-way outlet valve (6), so that
the flattened rubber bag abuts on the rubber bag mounting groove therein;
step 5: repeating the steps 1-4 to mount segments;
step 6: inflating the rubber bag through the inflating pipe (5), closing the valve
after a predetermined pressure is achieved, and finishing the construction of a
sealing ring for a large gap between shield Tunnel Boring Machine (TBM) segments
and the surrounding rock mass after completion of inflation for an entire segment
ring; and
step 7: observing readings of the one-way outlet valve pressure gauge (12) and
the inflating pipe pressure gauge (11) at any time, wherein the stacked multilayer
rubber bag is in good condition when the two readings are basically the same; and
the outer rubber bag and the core bag have failed when the reading of the one-way
outlet valve pressure gauge (12) is much larger than the reading of the inflating
pipe pressure gauge (11).
FIG. 2 FIG. 1 1/4
FIG. 4 FIG. 3 2/4
FIG.
6 FIG. 5 3/4
FIG. 8 FIG. 7 4/4
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010177048.5 | 2020-03-13 | ||
| 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 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AU2020102548A4 true AU2020102548A4 (en) | 2020-11-19 |
Family
ID=71547910
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU2020102548A Active AU2020102548A4 (en) | 2020-03-13 | 2020-10-01 | Stacked multilayer rubber bag seal structure suitable for large gaps and method of use thereof |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN111425211B (en) |
| AU (1) | AU2020102548A4 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113202505A (en) * | 2021-05-29 | 2021-08-03 | 浙江神州科技化工有限公司 | Subway segment gap sealing construction process |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114000378A (en) * | 2021-09-29 | 2022-02-01 | 东南大学 | Shield tunnel and prefabricated vibration reduction type back cover segment thereof |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3730574A1 (en) * | 1987-09-11 | 1989-03-23 | Signode System Gmbh | METHOD AND DEVICES FOR CLOSING THE GAP SPACE BETWEEN A LAST DISTANCE REMOVAL FRAME AND THE MOUNTAIN WHEN DRIVING DISTANCES |
| CN205135654U (en) * | 2015-11-13 | 2016-04-06 | 长安大学 | Fill exhaust formula tunnel secondary lining formworking jumbo end template |
| CN106437757B (en) * | 2016-10-10 | 2019-03-12 | 三峡大学 | For the tire formula liner structure and method between tunnel and shield lining segment |
| CN107100652B (en) * | 2017-05-19 | 2023-11-17 | 中国矿业大学(北京) | Flexible impact-resistant supporting method 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 |
| CN107587883B (en) * | 2017-08-25 | 2018-10-30 | 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 |
-
2020
- 2020-03-13 CN CN202010177048.5A patent/CN111425211B/en not_active Expired - Fee Related
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113202505A (en) * | 2021-05-29 | 2021-08-03 | 浙江神州科技化工有限公司 | Subway segment gap sealing construction process |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111425211A (en) | 2020-07-17 |
| CN111425211B (en) | 2021-11-02 |
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