JP2011241639A - Junction structure of vertical shaft mouth part - Google Patents

Junction structure of vertical shaft mouth part Download PDF

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JP2011241639A
JP2011241639A JP2010116131A JP2010116131A JP2011241639A JP 2011241639 A JP2011241639 A JP 2011241639A JP 2010116131 A JP2010116131 A JP 2010116131A JP 2010116131 A JP2010116131 A JP 2010116131A JP 2011241639 A JP2011241639 A JP 2011241639A
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ring
water
shaft
iron plate
stopping
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JP2010116131A
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JP5385855B2 (en
Inventor
Takahiro Arai
Yusuke Saito
Yukio Tada
Kunihiko Takimoto
Masaru Ushigaki
幸夫 多田
祐輔 斉藤
崇裕 新井
邦彦 滝本
勝 牛垣
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Kajima Corp
鹿島建設株式会社
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Abstract

PROBLEM TO BE SOLVED: To provide a flexible, simple and economical junction structure of a vertical shaft mouth part, capable of securing the safety of a structure when external force acts and surely preventing the decline of a water cutoff performance.SOLUTION: Planer cutoff rubber 21 is provided along the end face 6 of a tunnel 5. Along the surface 12 on the inner side of a vertical shaft 3 of the cutoff rubber 21, a cutoff steel plate 17 which comprises an outer side ring 17b and an inner side ring 17a and has a cutoff weld part 19 to function as a deformation induction part at a boundary is provided. The cutoff steel plate 17 and the cutoff rubber 21 are fixed to the mouth part of the vertical shaft 3 using a headed bolt 29 and are fixed to the end face 6 of the tunnel 5 using a headed bolt 23. Between the head part 30 of the headed bolt 23 and the cutoff steel plate 17, an elastic washer 27 is provided. A rib plate 33 is provided on the surface 14 on the inner side of the vertical shaft 3 of the cutoff steel plate 17. The contact part of the rib plate 33 with the outer side ring 17b is fixed over the entire length, and the contact part with the inner side ring 17a is fixed only at a predetermined part.

Description

  The present invention relates to a joint structure for a shaft shaft.
  Usually, the connection part between the shield tunnel and the shaft is stopped by a backfilling material on the outer periphery of the segment and a member such as concrete or steel installed at the wellhead. However, if a large displacement occurs in the shield tunnel due to an earthquake or the like, there is a possibility that the members and segments of the connecting portion may be deformed or destroyed. In particular, the connection between the shield tunnel and the shaft is a location where a large cross-sectional force acts due to strain concentration due to differences in structure and rigidity during an earthquake or the like. Therefore, when a large strain occurs in the connection portion between the shield tunnel and the shaft due to an earthquake or the like, water or the like may enter the shaft or the tunnel from these portions. For this reason, conventionally, when the connection part between the shield tunnel and the shaft is made to have a structure corresponding to an earthquake with a large vibration, a deformation that occurs during an earthquake or the like by installing a flexible segment and an elastic washer near the shaft -By absorbing the displacement, the shield pipe and the water stop structure of the shaft were not distorted, ensuring the safety of the structure and preventing the water stop performance from deteriorating.
  In addition, by attaching one end of an elastic joint with a Ω-shaped cross section to the side wall of the shaft and the other end to the end face of the wellhead of the shield conduit, when a ground deformation or earthquake occurs, the shield tunnel and the shaft There has been a method for securing water-stopping and water-resistance at seams (see, for example, Patent Document 1).
JP 2004-176393 A
  However, the flexible segment is complex in structure and very expensive. In addition, for example, the method of Patent Document 1 maintains the water stoppage performance by deformation of the elastic joint with respect to the displacement, and the soil generated due to the deterioration of the water stoppage performance of the joint portion over time or the relative displacement due to an earthquake or the like. If the water pressure is low, the water stop performance can be maintained by the elastic joint, but if the generated earth and water pressure is large, the elastic joint itself is low in strength, so the elastic joint and structure joint break, etc. Cannot be maintained. In general, the magnitude of the generated soil water pressure changes due to the influence of depth, groundwater level, soil quality, and the like. For this reason, there has been a demand for the development of a joining structure that is simple and economical, and that can ensure water-stopping performance even under large soil water pressures and large displacements, and can ensure the safety of the structure.
  The present invention has been made in view of the above-described problems, and its purpose is to ensure the safety of the structure when acting on an external force, and to ensure flexibility that can reliably prevent a decrease in water stoppage performance. It is to provide a simple and economical joint structure for a shaft shaft.
  In order to achieve the above-mentioned object, the present invention is a joint structure of a shaft pit portion to be joined to an underground pipe, and is provided along an end face on the shaft inner side of the pipe structure of the underground pipe. A plate-shaped water-stopping rubber, and provided along the surface of the water-stopping rubber shaft inside, comprising an outer ring and an inner ring, and a deformation inducing portion near the boundary between the outer ring and the inner ring A first anchor member for fixing the water stop iron plate and the water stop rubber to the shaft pit, and a first anchor member for fixing the water stop iron plate and the water stop rubber to the pipe structure. 2, an anchor member, and a joint structure of a shaft shaft portion.
  Rib plates are provided radially on the surface of the water-stopping iron plate at predetermined intervals as needed. The contact portion between the rib plate and the outer ring and the contact portion between the rib plate and the inner ring are fixed. When an external force is applied to the still water plate (for example, when an external force is generated due to a large earthquake, etc.), the rib plate and the inner ring are unfixed, and the inner ring is deformed to the underground duct side at the deformation inducing part. The
  The second anchor member penetrates the water-stopping iron plate and the water-stopping rubber, and fixes the water-stopping iron plate and the water-stopping rubber to the pipe structure through an elastic washer. For example, an anchor member is a volt | bolt, Comprising: A head is provided in the shaft inside of a water-stopping iron plate, penetrates a water-stopping iron plate and water-stopping rubber, and the other end is embed | buried in a pipe structure. In this case, an elastic washer may be provided between the bolt head and the still water iron plate.
  For example, the outer ring and the inner ring of the water-stopping iron plate are welded at a boundary portion, and the welded portion functions as a deformation inducing portion. Alternatively, a groove or a slit may be provided at the boundary portion between the outer ring and the inner ring, and the boundary portion may function as a deformation inducing portion. Furthermore, the outer ring and the inner ring may be arranged by providing a wrap portion on the inner edge portion of the outer ring and the outer edge portion of the inner ring, and the wrap portion may function as a deformation inducing portion. At this time, the outer ring and the inner ring are water-stop welded as necessary.
  In the present invention, since the water-stopping iron plate is provided on the shaft side of the water-stopping rubber, the water-stopping property can be reliably ensured against the soil water pressure from the outside in the vicinity of the connecting portion between the underground pipe line and the shaft. In addition, when large displacement occurs in the direction in which the pipe structure is separated from the shaft by a large-scale earthquake motion, for example, about several tens of millimeters, and a tensile force is applied to the connecting portion of the segment that is the pipe structure. In this case, the deformation inducing portion is broken and deformed, and the water-stopping rubber follows the displacement by elastic deformation. Since the broken water-stopping iron plate is fixed to the segment by an anchor member, the water-stopping iron plate is deformed following the segment and the water-stopping property is maintained. Moreover, since stress does not arise in the joint part between segments, damage to the joint part between segments can be prevented. In addition, if an elastic washer is used, even if a small displacement of about several millimeters, for example, caused by a small-scale earthquake motion, the strain is absorbed by elastic deformation of the anchor member, the water-stopping iron plate, and the elastic washer. Performance degradation can be prevented. In addition, by installing the rib plate on the inner surface side of the shaft, it is possible to obtain sufficient strength against soil water pressure from the outside of the shaft, and the deformation of the pipe structure to the shaft side (pipe structure) Is a displacement in the direction of projecting toward the shaft, and a displacement in a direction in which a compressive force is applied to the connecting portion of the segment can be suppressed.
  ADVANTAGE OF THE INVENTION According to this invention, the safety | security of a structure can be ensured at the time of external force effect | action, and the simple and economical joint structure of a shaft shaft part which has the flexibility which can prevent the fall of water stop performance reliably can be provided.
Sectional view near the junction between the shaft 3 and the tunnel 5 A sectional view in the tunnel axial direction in the vicinity of the joint structure 15 including the water stop rubber 21, the water stop iron plate 17, the headed bolt 29, the headed bolt 23, the elastic washer 27, the rib plate 33, and the like. Sectional view in the tunnel axis direction near the junction structure 15 Cross section of junction structure 15 in tunnel circumferential direction The figure which shows the state of the joining structure 15 at the time of a large-scale earthquake occurrence The figure which shows the example of other water stop iron plates
  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a cross-sectional view of the vicinity of the junction between the shaft 3 and the tunnel 5. As shown in FIG. 1, the end of the tunnel 5, which is a pipe structure of an underground pipe constructed in the natural ground 1, is joined to the opening 8 of the shaft 3. A wellhead concrete 7 is installed on the inner periphery of the opening 8.
  2 and 3 are cross-sectional views in the tunnel axis direction in the vicinity of the junction structure 15, and FIG. 4 is a cross-sectional view of the junction structure 15 in the tunnel circumferential direction. 2 is an enlarged view of a range A shown in FIG. 1 and a cross-sectional view taken along arrows CC shown in FIG. 3 is a cross-sectional view taken along arrow DD shown in FIG. In addition, illustration of the wellhead concrete 7 is abbreviate | omitted in FIG.
  As shown in FIGS. 2 to 4, in the shaft 3, the embedded hardware 9 is installed along the inner peripheral surface 10 of the opening 8 (FIG. 1). The tunnel 5 includes a segment 13, a backfill material 11 filled between the embedded metal 9 and the segment 13, and the like.
  As shown in FIGS. 2 to 4, a junction structure 15 is installed at the junction between the shaft 3 and the tunnel 5. The joining structure 15 includes a water stop rubber 21, a water stop iron plate 17, a headed bolt 29 as a first anchor member, a headed bolt 23 as a second anchor member, an elastic washer 27, a rib plate 33, and the like.
  As shown in FIGS. 2 and 3, the water stop rubber 21 is installed along the end face 6 on the inner side of the shaft 3 of the tunnel 5. The water blocking rubber 21 is, for example, an annular plate-like member having an inner diameter that is substantially the same as the inner diameter of the segment 13 and whose outer diameter is slightly larger than the outer diameter of the backfill material 11.
  As shown in FIGS. 2 to 4, the still water iron plate 17 is installed along the surface 12 on the inner side of the shaft 3 of the water stop rubber 21. The water stop iron plate 17 is an annular member having substantially the same shape as the water stop rubber 21. The still water iron plate 17 includes an outer ring 17b and an inner ring 17a. The water-stopping iron plate 17 has a water-stop welding portion 19 that functions as a deformation inducing portion in the vicinity of the boundary between the outer ring 17b and the inner ring 17a. The water stop welded portion 19 is provided on the surface 14 of the water stop iron plate 17 on the wellhead concrete 7 side.
  As shown in FIG. 2, the headed bolt 29 fixes the water stop iron plate 17 and the water stop rubber 21 to the wellhead portion of the shaft 3. The headed bolt 29 has a head 28 embedded in the shaft 3 and penetrates the water-stopping iron plate 17 and the water-stopping rubber 21. A nut 31 is screwed into the end portion 26 of the headed bolt 29 and is fastened to the surface 14 of the waterstop iron plate 17 on the wellhead concrete 7 side. The end portion 26 and the nut 31 of the headed bolt 29 are embedded in the wellhead concrete 7.
  As shown in FIG. 2, the headed bolt 23 fixes the water-stopping iron plate 17 and the water-stopping rubber 21 to the segment 13 of the tunnel 5. The headed bolt 23 has a head 30 provided on the inner side of the shaft 3 of the water-stopping iron plate 17 and penetrates the water-stopping iron plate 17 and the water-stopping rubber 21. The head 30 of the headed bolt 23 is disposed in a space 35 provided in the wellhead concrete 7. The end 32 of the headed bolt 23 is screwed into an insert 25 provided on the end face 6 of the segment 13. The elastic washer 27 is provided between the head 30 of the headed bolt 23 and the water-stopping iron plate 17.
  In this embodiment, the elastic washer 27 is provided between the head 30 of the bolt 23 with the head as an anchor member and the water-stopping iron plate 17, but the position of the elastic washer is not limited to this. In this invention, the anchor member which penetrates a water-stopping iron plate and water-stopping rubber should just be provided in the positional relationship where a water-stopping iron plate and water-stopping rubber are fixed to a segment via an elastic washer. For example, the head of a headed bolt that is an anchor member may be provided on the segment 13 side of the water stop rubber 21, and an elastic washer may be provided between the head of the headed bolt and the water stop rubber 21.
  As shown in FIGS. 3 and 4, the rib plate 33 is provided radially on the surface 14 on the inner side of the shaft 3 of the water-stopping iron plate 17 at a predetermined interval. In the present embodiment, the contact portion between the rib plate 33 and the outer ring 17 b is fixed over the entire length by the linear welded portion 39. Only predetermined portions of the contact portion between the rib plate 33 and the inner ring 17a are fixed by the spot-like welded portion 37.
  2 to 4, the headed bolt 29, the headed bolt 23, the elastic washer 27, and the waterstop iron plate 17 against a small displacement of, for example, several millimeters caused by a small-scale earthquake motion or the like. The strain is absorbed by the elastic deformation. Therefore, damage to the water stop rubber 21 does not occur, and deterioration of the water stop performance at the joint between the shaft 3 and the tunnel 5 is prevented.
  FIG. 5 is a diagram illustrating a state of the joint structure 15 when a large-scale earthquake occurs. The contact portion between the outer ring 17b and the rib plate 33 of the water-stopping iron plate 17 is linearly welded over the entire length, and only a predetermined portion of the contact portion between the inner ring 17a and the rib plate 33 is welded in a spot shape. When a large displacement of, for example, several tens of millimeters occurs in the joining structure 15 in the direction in which the segment 13 is separated from the shaft 3 (in the direction of arrow E shown in FIG. 5) due to large-scale earthquake motion or the like, the inner ring 17a and the rib Only the welded portion 37 (FIG. 4) with the plate 33 is broken, the inner ring 17a is supported by the end on the outer ring 17b side, and the other end is free. That is, when the rib plate 33 is fixed to the outer ring 17b and the inner ring 17a, the bending stress acts on the waterstop iron plate 17 in the pipe extension direction, and the deformation inducing portion breaks. While the rib plate 33 is not fixed, the outer ring 17b and the rib plate 33 are not fixed.
  When the welded portion 37 (FIG. 4) between the inner ring 17a and the rib plate 33 breaks, the water-stop welded portion 19 between the outer ring 17b and the inner ring 17a of the water-stopping iron plate 17 that functions as a deformation inducing portion is broken. At this time, the water stop rubber 21 connecting the shaft 3 and the tunnel 5 follows the displacement, and the water stop performance is maintained. The rubber of the still water rubber 21 means an elastic body having a wider elastic range than a metal such as iron, and the iron plate of the still water iron plate 17 means a rigid body having a higher strength than rubber. To do.
  As described above, according to the present embodiment, by using the joining structure 15 having a simple structure as shown in FIGS. 2 to 4, the flexible structure can be obtained without using a flexible segment having a complicated structure. The junction part of the vertical shaft 3 and the tunnel 5 which has can be constructed.
That is, at the junction between the shaft 3 and the tunnel 5, the direction in which the segment 13 is separated from the shaft 3 (the direction of the arrow E shown in FIG. 5), and the tensile force is applied to the connecting portion of the segment 13, For example, when a large displacement of about several tens of mm occurs, the water stop rubber 21 and the water stop iron plate 17 follow the relative displacement of the shaft 3 and the segment 13, respectively, and water stoppage can be secured.
When a large displacement of, for example, several tens of millimeters occurs in the direction in which the segment 13 approaches the shaft 3 (the direction of the arrow F shown in FIG. 5) and the compressive force is applied to the connecting portion of the segment 13. The rib plate 33 suppresses the displacement of the segment 13. At this time, a compressive force is also applied to the segment 13, but since the segment 13 is structurally strong against the compressive force, the safety of the structure can be maintained.
  Further, when a small displacement of, for example, about several millimeters occurs at the junction between the shaft 3 and the tunnel 5, the headed bolt 29, the headed bolt 23, the elastic washer 27, the water stop rubber 21, and the water stop iron plate 17. The elastic deformation of the steel sheet absorbs the strain, and the water-stopping iron plate does not undergo plastic deformation and breakage, thereby preventing the water-stopping performance from deteriorating.
  In this embodiment, the water stop welded portion 19 is provided at the boundary between the outer ring 17b and the inner ring 17a of the water stop iron plate 17 to function as a deformation inducing portion. Not limited to.
  FIG. 6 is a diagram illustrating an example of another water-stopping iron plate. FIG. 6A is a cross-sectional view of the still water iron plate 41 in the tunnel axis direction. The water stop iron plate 41 is an annular plate-like member similar to the water stop iron plate 17, and includes an outer ring 41b and an inner ring 41a as shown in FIG. 6 (a). As for the still water iron plate 41, the groove | channel 43 is provided in the boundary part of the outer side ring 41b and the inner side ring 41a. In the joint structure using the water-stopping iron plate 41 instead of the water-stopping iron plate 17, the boundary portion provided with the groove 43 functions as a deformation inducing portion.
  FIG. 6B is a cross-sectional view of the still water iron plate 45 in the tunnel axis direction. The still water iron plate 45 is an annular plate-like member similar to the still water iron plate 17, and includes an outer ring 45b and an inner ring 45a as shown in FIG. 6 (b). The still water iron plate 45 is provided with a slit 47 at the boundary between the outer ring 45b and the inner ring 45a. In the joining structure using the water-stopping iron plate 45 instead of the water-stopping iron plate 17, the boundary portion provided with the slit 47 functions as a deformation inducing portion.
  FIG. 6C shows a cross-sectional view of the still water iron plate 49 in the tunnel axis direction. The water stop iron plate 49 is an annular plate-like member similar to the water stop iron plate 17, and includes an outer ring 49b and an inner ring 49a as shown in FIG. 6 (c). As for the still water iron plate 49, the lap | wrap part 51 is provided in the inner edge part 53b of the outer side ring 49b, and the outer edge part 53a of the inner side ring 49a. The outer ring 49b and the inner ring 49a are water-stop welded as necessary. In the joining structure using the water-stopping iron plate 49 instead of the water-stopping iron plate 17, the vicinity of the boundary between the outer ring 49b and the inner ring 49a in the wrap portion 51 functions as a deformation inducing portion.
  When an external force acts on the joint between the shaft 3 and the tunnel 5 and a small displacement of, for example, several millimeters occurs, the still water iron plate 41 (45, 49) shown in FIG. 2 to 4 also absorbs strain by elastic deformation of the headed bolt 29, the headed bolt 23, the elastic washer 27, and the water-stopping iron plate 41 (45, 49). And the fall of the water stop performance in the junction part of the shaft 3 and the tunnel 5 can be prevented.
  Further, when a large displacement of, for example, several tens of millimeters occurs in the direction in which the segment 13 moves away from the shaft 3 due to the action of external force, the inner ring 41a (45a, 49a) and the rib plate 33 are formed in the same manner as the joining structure 15. The inner ring 41a (45a, 49a) is supported at the end on the outer ring 41b (45b, 49b) side, and the other end is free. And while the deformation | transformation to the tunnel 5 side of the inner side ring 41a (45a, 49a) is induced, the plastic deformation of the water stop iron plate 41 (45, 49) arises. However, since the water-stopping rubber 21 connects the shaft 3 and the segment 13 of the tunnel 5, it is possible to ensure water-stopping at the joint between the shaft 3 and the tunnel 5.
  In the present embodiment, the contact portion between the outer ring 17b and the rib plate 33 of the water-stopping iron plate 17 is linearly welded over the entire length, and the contact portion between the inner ring 17a and the rib plate 33 is dotted only at a predetermined location. However, the method of fixing the rib plate 33 to the outer ring 17b and the inner ring 17a is not limited to this. The relationship between the rib plate 33, the outer ring 17b, and the inner ring 17a is fixed when bending stress acts on the waterstop iron plate 17 in the pipe extension direction and the deformation inducing portion breaks, and the inner ring 17a and the rib plate It is sufficient that the outer ring 17b and the rib plate 33 are not unfixed while the 33 is unfixed.
  In this embodiment, the elastic washer 27 is installed in the fixed portion between the segment 13 of the tunnel 5 and the water-stopping iron plate 17 and the water-stopping rubber 21, but the fixing portion of the shaft 3 and the water-stopping iron plate 17 and the water-stopping rubber 21 is fixed. Similarly, an elastic washer may be installed. Moreover, what is necessary is just to install these elastic washers as needed.
  In the present embodiment, the joint portion between the shield tunnel 5 having a circular cross section and the shaft 3 has been described as an example. However, the joint structure of the present invention is also applied to a joint portion between a tunnel having another shape and a shaft. it can. Moreover, it is applicable also to the junction part of underground pipe lines other than a tunnel, and a shaft.
  As mentioned above, although embodiment of this invention was described referring an accompanying drawing, the technical scope of this invention is not influenced by embodiment mentioned above. It is obvious for those skilled in the art that various modifications or modifications can be conceived within the scope of the technical idea described in the claims, and these are naturally within the technical scope of the present invention. It is understood that it belongs.
3 ......... Vertical shaft 5 ......... Tunnel 6 ......... End face 10, 12, 14 ......... Surface 13 ......... Segment 15 ......... Joint structure 17, 41, 45, 49 ......... Water-stopping iron plate 17a, 41a, 45a, 49a ......... Inner ring 17b, 41a, 45a, 49a ......... Outer ring 19 ......... Water stop weld 21 ......... Water stop rubber 23, 29 ......... Head bolt 25 ......... Insert 26, 32 ... End 27 ... Elastic washer 28, 30 Head 43 ... Groove 45 ... Slit 51 ... Wrap 53a ... Inner edge 53b ... Outer edge Part

Claims (7)

  1. It is a joint structure of a shaft shaft jointed with an underground pipeline,
    A plate-like water-stopping rubber provided along the end face of the underground structure of the pipe structure of the underground pipe,
    A waterstop iron plate that is provided along the surface of the waterstop rubber inside the shaft, and is composed of an outer ring and an inner ring, and has a deformation inducing portion in the vicinity of the boundary between the outer ring and the inner ring,
    A first anchor member for fixing the water stop iron plate and the water stop rubber to the shaft shaft portion;
    A second anchor member for fixing the water-stopping iron plate and the water-stopping rubber to the pipeline structure;
    A structure for joining a shaft shaft portion, characterized by comprising:
  2. Rib plates are provided radially at predetermined intervals on the surface of the vertical shaft inside the water-stopping iron plate,
    The contact structure between the rib plate and the outer ring and the contact part between the rib plate and the inner ring are fixed.
  3.   The rib plate and the inner ring are unfixed when an external force acts on the water-stopping iron plate, and deformation of the inner ring toward the underground pipe side is induced in the deformation inducing portion. The joint structure of the shaft shaft part according to 2.
  4.   The second anchor member penetrates the water-stopping iron plate and the water-stopping rubber, and fixes the water-stopping iron plate and the water-stopping rubber to the pipe structure through an elastic washer. 4. The joint structure of a shaft shaft opening according to any one of claims 1 to 3.
  5.   The joint structure of the shaft shaft head portion according to any one of claims 1 to 4, wherein the outer ring and the inner ring are welded at a boundary portion, and the welded portion functions as the deformation inducing portion.
  6.   The shaft shaft according to any one of claims 1 to 4, wherein a groove or a slit is provided at a boundary portion between the outer ring and the inner ring, and the boundary portion functions as the deformation inducing portion. Part joining structure.
  7.   The outer ring and the inner ring are arranged by providing a wrap portion at an inner edge portion of the outer ring and an outer edge portion of the inner ring, and in the wrap portion, in the vicinity of a boundary portion between the outer ring and the inner ring 5 functions as the deformation inducing portion, and the shaft pit joint structure according to any one of claims 1 to 4.
JP2010116131A 2010-05-20 2010-05-20 Joint structure of shaft shaft Active JP5385855B2 (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103046523A (en) * 2012-12-25 2013-04-17 北京爱地地质勘察基础工程公司 Method for monitoring horizontal deformation of foundation pit and slope support
CN103397892A (en) * 2013-07-15 2013-11-20 中铁十三局集团有限公司 Shield starting tunnel portal extension steel ring
CN103982194A (en) * 2014-06-04 2014-08-13 北京建筑大学 Method for barrier-free starting of shield tunneling machine
CN105201524A (en) * 2015-09-10 2015-12-30 河南理工大学 Reserved anchor net and right-angled yieldable shed combined support technology for extremely soft coal seam roadway
CN109751056A (en) * 2019-01-31 2019-05-14 中铁工程装备集团有限公司 A kind of water rich strata shield-tunneling construction active well end processing method
KR20190084704A (en) * 2018-01-09 2019-07-17 (주)세니츠코퍼레이션 Reinforcement and waterproof structure of vertical shafts for utility interface

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JPH01271599A (en) * 1988-04-25 1989-10-30 Tokyo Superia:Kk Check metal of entrance packing device for shield drilling
JPH11107688A (en) * 1997-10-07 1999-04-20 Sumitomo Rubber Ind Ltd Flexible segment for shielding method
JPH11182189A (en) * 1997-12-24 1999-07-06 Ohbayashi Corp Aseismatic structure on tunnel joint part
JP2001041221A (en) * 1999-07-29 2001-02-13 Sumitomo Rubber Ind Ltd Elastic washer
JP2004176393A (en) * 2002-11-27 2004-06-24 Airec Engineering Corp Joint structure of shaft portal part

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01271599A (en) * 1988-04-25 1989-10-30 Tokyo Superia:Kk Check metal of entrance packing device for shield drilling
JPH11107688A (en) * 1997-10-07 1999-04-20 Sumitomo Rubber Ind Ltd Flexible segment for shielding method
JPH11182189A (en) * 1997-12-24 1999-07-06 Ohbayashi Corp Aseismatic structure on tunnel joint part
JP2001041221A (en) * 1999-07-29 2001-02-13 Sumitomo Rubber Ind Ltd Elastic washer
JP2004176393A (en) * 2002-11-27 2004-06-24 Airec Engineering Corp Joint structure of shaft portal part

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103046523A (en) * 2012-12-25 2013-04-17 北京爱地地质勘察基础工程公司 Method for monitoring horizontal deformation of foundation pit and slope support
CN103046523B (en) * 2012-12-25 2014-09-24 北京爱地地质勘察基础工程公司 Method for monitoring horizontal deformation of foundation pit and slope support
CN103397892A (en) * 2013-07-15 2013-11-20 中铁十三局集团有限公司 Shield starting tunnel portal extension steel ring
CN103982194A (en) * 2014-06-04 2014-08-13 北京建筑大学 Method for barrier-free starting of shield tunneling machine
CN105201524A (en) * 2015-09-10 2015-12-30 河南理工大学 Reserved anchor net and right-angled yieldable shed combined support technology for extremely soft coal seam roadway
KR20190084704A (en) * 2018-01-09 2019-07-17 (주)세니츠코퍼레이션 Reinforcement and waterproof structure of vertical shafts for utility interface
KR102103978B1 (en) * 2018-01-09 2020-04-23 (주)세니츠코퍼레이션 Reinforcement and waterproof structure of vertical shafts for utility interface
CN109751056A (en) * 2019-01-31 2019-05-14 中铁工程装备集团有限公司 A kind of water rich strata shield-tunneling construction active well end processing method

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