JP4493936B2 - Method for constructing tunnel junction and tunnel junction - Google Patents

Method for constructing tunnel junction and tunnel junction Download PDF

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Publication number
JP4493936B2
JP4493936B2 JP2003151502A JP2003151502A JP4493936B2 JP 4493936 B2 JP4493936 B2 JP 4493936B2 JP 2003151502 A JP2003151502 A JP 2003151502A JP 2003151502 A JP2003151502 A JP 2003151502A JP 4493936 B2 JP4493936 B2 JP 4493936B2
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Prior art keywords
tunnel
pipe
section
side
peripheral surface
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JP2004353264A (en
Inventor
雅由 中川
幸信 佐々木
正 吉川
孝志 小林
行高 山本
孝義 青柳
浩二 馬野
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鹿島建設株式会社
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Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a method for constructing a tunnel junction and a tunnel junction.
[0002]
[Prior art]
In the past, in order to construct the ramp part of the underground tunnel by the non-open-cut method, large-scale ground improvement was carried out from the main line underground tunnel, and it was expanded by the mountain method. Further, a method has been proposed in which one or more shield machines excavated from one side are joined to two or more shield machines excavated from the other side in the ground (for example, see Patent Document 1).
[0003]
[Patent Document 1]
JP-A-8-60979
[Problems to be solved by the invention]
However, it is difficult to completely improve the ground from the main tunnel. Also, in deep underground where the needs are expected to increase in the future, the water pressure is high, so there is a safety problem in the construction of tunnels that rely on ground improvement.
[0005]
This invention is made | formed in view of such a problem, The place made into the objective is to provide the construction method and tunnel junction part of the tunnel junction part which can be constructed safely also in a deep underground.
[0006]
A first invention for achieving the above-described object is a method for constructing a junction part of two tunnels , wherein the first tunnel and the second tunnel are arranged at the start point of the junction part. The inner space of the tunnel and the inner space of the second tunnel are widened to the sides that do not face each other, and at the end of the merge portion, the inner space of the first tunnel is moved to the side that does not face the second tunnel. Reducing the width and returning to the normal cross-section (a), and installing a first arc pipe between the upper half of the first tunnel and the upper half of the second tunnel, A second arcuate pipe is installed between the lower half of the first tunnel and the lower half of the second tunnel, and the first arcuate shape is inside the first tunnel and the second tunnel. An end of the pipe and an end of the second arcuate pipe are connected by a pipe, and the first tunnel And a step (b) of forming a pipe roof by installing a plurality of annular pipes penetrating the second tunnel and stopping water between the annular pipes, and an outer peripheral surface of the pipe roof, A first reinforcing member is provided between the inner peripheral surface of the side portion of the first tunnel and a second reinforcing member is provided between the outer peripheral surface of the pipe roof and the inner peripheral surface of the side portion of the second tunnel. And excavating the ground surrounded by the pipe roof, the first tunnel, and the second tunnel, and opposing sides of the first tunnel and the second tunnel. Is a method for constructing a tunnel junction, comprising: a step (c) for removing the inner surface of the pipe roof; and a step (d) for lining the inside of the pipe roof.
[0007]
The first tunnel and the second tunnel are, for example, a main tunnel and a lamp section tunnel. In the pipe roof, arc-shaped pipes are installed between the upper half of the main tunnel and the upper half of the ramp tunnel, and between the lower half and the lower half, respectively. It is formed by connecting the ends of arcuate pipes installed in the ring to form a ring, and stopping water between the pipes.
[0008]
Step between (b) and step (c), the pipe first reinforcing member between the outer surface and the inner circumferential surface of the side portion of the first tunnel roof, the outer circumferential surface of the pipe roof and second A second reinforcing member is installed between the inner peripheral surface of the side portion of the tunnel. The first reinforcing member and the second reinforcing member are, for example, concrete.
[0009]
In step (a), the inner spaces of the main tunnel and the lamp section tunnel are widened as necessary. For example, the inner space of the main tunnel and the inner space of the ramp tunnel are widened to the side not facing each other at the start point of the junction, and the inner space of the main tunnel is not opposed to the ramp tunnel at the end of the junction Is reduced to the normal cross section.
[0010]
At this time, in the main line tunnel, at a position advanced a predetermined distance from the start point of the merge part, the side facing the ramp part tunnel is reduced to return the inner sky to the normal cross section, and a predetermined distance to the end point of the merge part is obtained. It is desirable to widen the inner space to the side facing the lamp section tunnel at the remaining position. Further, in the ramp tunnel, it is desirable to reduce the width of the side not facing the main tunnel at a position advanced a predetermined distance from the starting point and return the inner sky to the normal section.
[0011]
In the first invention, a pipe roof is formed by installing a first tunnel and a second tunnel, and installing a plurality of annular pipes penetrating the first tunnel and the second tunnel. Then, the ground surrounded by the pipe roof, the first tunnel, and the second tunnel is excavated, and predetermined portions of the first tunnel and the second tunnel are removed to cover the inside of the pipe roof. .
[0013]
DETAILED DESCRIPTION OF THE INVENTION
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 main tunnel 1 and the ramp tunnel 3 in the vicinity of the merge section planned section 13 cut along a horizontal plane, FIG. 2 is a cross-sectional view of the merge section 43 cut along a horizontal plane, and FIG. It is a figure which shows each process which builds 43 acceleration areas. 3 is a cross-sectional view of the main tunnel 1, the lamp tunnel 3 and the like cut along a vertical plane at the positions indicated by A1-A1 in FIG. 1 and A2-A2 in FIG.
[0014]
As shown in FIG. 2 and FIG. 3 (d), the confluence 43 is composed of a main tunnel 1, a ramp tunnel 3, a pipe roof composed of a plurality of annular pipes 23, concrete 29, concrete 31, primary lining 27, two Consists of the next lining 33 and the like. The merge part 43 is divided into three sections, a merge start section 7, an acceleration section 9, and a merge end section 11.
[0015]
As shown in FIGS. 1 and 2, the main tunnel 1 and the ramp tunnel 3 are shield tunnels provided side by side. In the main tunnel 1, the side 45b of the merging start section 7, the side 45a of the accelerating section 9, and the side 45c of the merging end section 11 are outside the side 45d of the normal section 10 (in the direction indicated by the arrow X1 in FIG. 2). ). In the ramp part tunnel 3, the side part 47b of the merging start section 7 is installed outside the side part 47d of the normal section 10 (in the direction indicated by the arrow X2 in FIG. 2). Further, in a predetermined section, the side 51 and the side 49 (FIG. 1), which are the opposing portions of the main tunnel 1 and the ramp tunnel 3, are removed.
[0016]
As shown in FIG. 3 (d), the annular pipe 23 includes an arc pipe 17 installed between the upper half of the main tunnel 1 and the upper half of the ramp tunnel 3, and the lower half of the main tunnel 1. And an arc pipe 19 installed between the lamp section tunnel 3 and the lower half of the lamp section tunnel 3, and a pipe 21 connecting the arc pipe 17 and the arc pipe 19. The annular pipes 23 are provided at predetermined intervals in the tunnel axial direction. Concrete is placed inside the annular pipe 23.
[0017]
Concrete 29 and concrete 31 are reinforcing members. The concrete 31 is installed between the outer peripheral surface of the annular pipe 23 and the inner peripheral surface of the main tunnel 1, and the concrete 29 is installed between the outer peripheral surface of the annular pipe 23 and the inner peripheral surface of the ramp part tunnel 3. The
[0018]
The primary lining 27 is installed along the inner peripheral surface of a portion of the annular pipe 23 disposed outside the main tunnel 1 and the ramp tunnel 3. For the primary lining 27, for example, an iron plate is used. The primary lining 27 is a member for stopping water between the annular pipes 23. The secondary lining 33 is installed along the inner peripheral surface of the annular pipe 23 and the inner peripheral surface of the main tunnel 1, the portion disposed inside the ramp tunnel 3, and the inner peripheral surface of the primary lining 27. For the secondary lining 33, for example, concrete is used.
[0019]
Next, a method for constructing the merge portion 43 will be described. The merge section planned section 13 and the planned road 5 are divided into three sections, a merge start section 7, an acceleration section 9, and a merge end section 11. In order to build the junction 43, first, as shown in FIG. 1, the main tunnel 1 and the ramp tunnel 3 are formed in the ground 15 over the entire section. The main line tunnel 1 and the ramp part tunnel 3 are formed using the existing widening shield machine and widening shield method, with the direction indicated by the arrow Y in FIG. The main line tunnel 1 and the ramp section tunnel 3 are provided side by side in the merge section planned section 13.
[0020]
When the main tunnel 1 is formed, the side portion 45b that does not face the ramp portion tunnel 3 is widened at the start point of the merge start section 7 to widen the space inside the tunnel. Further, at the end point of the merging start section 7, the side portion 51b facing the ramp portion tunnel 3 is reduced in width, and the tunnel interior is returned to the normal section.
[0021]
Further, the side 51c facing the ramp tunnel 3 is widened at the starting point of the merging end section 11 to widen the tunnel interior, and the side 45c not facing the ramp tunnel is narrowed at the end of the merging end section 11. Then, return the tunnel sky to the normal section.
[0022]
When the ramp tunnel 3 is formed, the side 47b not facing the main tunnel 1 is widened at the starting point of the merging start section 7 to widen the inner space of the tunnel, and at the end of the merging start section 7, the side portion The width of 47b is reduced to return the tunnel interior to the normal cross section.
[0023]
After the main tunnel 1 and the ramp tunnel 3 are formed, the merge start section 7 of the merge section 43 is constructed. FIG. 4 is a diagram illustrating each process of constructing the merge start section 7 of the merge unit 43. FIG. 4A is a view showing a state where the arcuate pipe 17b and the arcuate pipe 19b are installed, and is a cross-sectional view taken along B1-B1 of FIG. As described above, in the merge start section 7, the inner space of the main tunnel 1 and the inner space of the ramp tunnel 3 are both widened.
[0024]
In order to construct the merging start section 7 of the merging portion 43, first, as shown in FIG. 4A, an arc-shaped pipe is interposed between the upper half portion of the main tunnel 1 and the upper half portion of the ramp portion tunnel 3. 17b is installed. Further, an arc-shaped pipe 19 b is installed between the lower half of the main tunnel 1 and the lower half of the ramp tunnel 3. The arc-shaped pipe 17b and the arc-shaped pipe 19b are formed by installing a pipe in a hole while excavating the ground 14 from one tunnel to the other tunnel with an excavator.
[0025]
(B) of FIG. 4 is a figure which shows the state which installed the annular pipe 23b, the concrete 29b, and the concrete 31b, and formed the frozen soil 25b. After the arc-shaped pipe 17b and the arc-shaped pipe 19b are installed, as shown in FIG. 4B, the end of the arc-shaped pipe 17b and the end of the arc-shaped pipe 19b are connected inside the main line tunnel 1 and the ramp section tunnel 3. The pipes 21b are connected to form an annular pipe 23b.
[0026]
After the annular pipe 23b is formed, the concrete 31b is filled between the outer peripheral surface of the annular pipe 23b and the inner peripheral surface of the side portion 45b of the main line tunnel 1. Further, the concrete 29 b is filled between the annular pipe 23 b and the inner peripheral surface of the side portion 47 b of the ramp portion tunnel 3. Furthermore, frozen soil 25b is formed by a freezing method around the portions of the annular pipe 23b that are disposed outside the main tunnel 1 and the ramp tunnel 3. The frozen soil 25b is formed to stop water between the plurality of annular pipes 23b.
[0027]
(C) of FIG. 4 is a figure which shows the state which excavated the inner side of the annular pipe 23b, and gave the primary lining 27b. After forming the frozen soil 25b, as shown in FIG. 4C, the portion of the ground 15b surrounded by the annular pipe 23b, the side portion 51b of the main tunnel 1 and the side portion 49b of the ramp portion tunnel 3 (FIG. 4). (B)) is excavated.
[0028]
Next, a primary lining 27b is applied along the inner peripheral surface of a portion of the annular pipe 23b installed outside the main tunnel 1 and the ramp tunnel 3. Then, the frozen soil 25b remaining outside the annular pipe 23b is released from freezing, and concrete is placed in the annular pipe 23b. After the frozen soil 25b is released from freezing, the primary lining 27b ensures water-stopping between the annular pipes 23b.
[0029]
After the step shown in FIG. 4C is finished, in the predetermined section on the end point side of the merging start section 7, as shown in FIG. 2, the side section that is a portion where the main tunnel 1 and the ramp section tunnel 3 face each other. 51b, the segment of the side part 49b is removed.
[0030]
FIG. 4D is a diagram illustrating a state where the merging start section 7 of the merging portion 43 is completed, and is a cross-sectional view taken along B2-B2 in FIG. After removing the segments of the side 51a of the main tunnel 1 and the side 49b of the ramp tunnel 3, the main tunnel 1 and the ramp tunnel 3 of the annular segment 23b are removed as shown in FIGS. A secondary lining 33b is applied along the inner peripheral surface of the portion disposed inside the inner periphery and the inner peripheral surface of the primary lining 27b. Then, a road 37 is constructed in the main tunnel 1 and a road 39 is constructed in the ramp tunnel 3. As shown in FIG. 2, the road 37 and the road 39 are joined at the end point side section of the merge start section 7.
[0031]
After the merging start section 7 is constructed or in parallel with the construction, the acceleration section 9 is constructed. The acceleration section 9 is constructed in substantially the same manner as the merge start section 7. FIG. 3A is a view showing a state where the arcuate pipe 17a and the arcuate pipe 19a are installed, and is a cross-sectional view taken along A1-A1 of FIG. As described above, in the acceleration section 9, the inner space of the main tunnel 1 and the inner space of the ramp tunnel 3 are both normal cross sections.
[0032]
In order to construct the acceleration section 9, first, as shown in FIG. 3A, the arc-shaped pipe 17 a is connected between the upper half of the main tunnel 1 and the upper half of the ramp tunnel 3. An arcuate pipe 19 a is installed between the lower half of the lamp and the lower half of the ramp tunnel 3. The arc-shaped pipe 17a and the arc-shaped pipe 19a are formed by installing a pipe in a hole while excavating the ground 15a from one tunnel to the other tunnel with an excavator.
[0033]
(B) of FIG. 3 is a figure which shows the state which installed the annular pipe 23a, the concrete 29a, and the concrete 31a, and formed the frozen soil 25a. After the arc-shaped pipe 17a and the arc-shaped pipe 19a are installed, the annular pipe 23a is formed in the same manner as the annular pipe 23b (FIG. 4) as shown in FIG.
[0034]
And concrete 31a is provided between the outer peripheral surface of the annular pipe 23a and the inner peripheral surface of the side portion 45a of the main tunnel 1, and concrete 29a is provided between the annular pipe 23a and the inner peripheral surface of the side portion 47a of the ramp portion tunnel 3. Fill. Furthermore, frozen soil 25a is formed around the portions of the annular pipe 23a installed outside the main tunnel 1 and the ramp tunnel 3 by a freezing method.
[0035]
(C) of FIG. 3 is a figure which shows the state which excavated the inner side of the annular pipe 23a and gave the primary lining 27a. After forming the frozen soil 25a, as shown in FIG. 3 (c), a portion of the ground 15a surrounded by the annular pipe 23a, the side 51a of the main tunnel 1 and the side 49a of the ramp tunnel 3 (FIG. 3). (B)) is excavated.
[0036]
Next, a primary lining 27a is applied along the inner peripheral surface of a portion of the annular pipe 23a installed outside the main tunnel 1 and the ramp tunnel 3. Then, freezing of the frozen soil 25a remaining outside the annular pipe 23a is released, and concrete is placed in the annular pipe 23a. After the frozen soil 25a is released from freezing, the primary lining 27a ensures water-stopping between the annular pipes 23a.
[0037]
FIG. 3D is a diagram illustrating a state in which the acceleration section 9 of the merging portion 43 is completed, and is a cross-sectional view taken along A2-A2 in FIG. After applying the primary lining 27a, as shown in FIG. 2 and FIG. 3D, the opposing side 51a and side 49a segments of the main tunnel 1 and the ramp tunnel 3 are removed. Then, the secondary lining 33a is applied along the inner peripheral surface of the primary lining 27a and the inner peripheral surface of the portion of the annular pipe 23a disposed inside the main tunnel 1 and the ramp portion tunnel 3. Then, a road 35 is constructed inside the secondary lining 33a. As shown in FIG. 2, the road 35 is an extension of the joined road 37 and road 39.
[0038]
A merge end section 11 is constructed after or in parallel with the construction of the merge start section 7 and the acceleration section 9. The merge end section 11 is constructed in substantially the same manner as the merge start section 7 and the acceleration section 9. FIG. 5 is a diagram illustrating each process of constructing the merge end section 11 of the merge unit 43. (A) of FIG. 5 is a figure which shows the state which installed the arcuate pipe 17c and the arcuate pipe 19c, and is sectional drawing by C1-C1 of FIG. As described above, in the merge end section 11, the inner space of the main tunnel 1 is widened, and the inner space of the ramp tunnel 3 has a normal cross section.
[0039]
In order to construct the merge end section 11, first, as shown in FIG. 5A, the arc pipe 17c, the arc pipe, and the arc pipe 17 and arc pipe 19 of the merge start section 7 and the acceleration section 9 are used. 19c is installed.
[0040]
FIG. 5B is a diagram showing a state where the annular pipe 23c, the concrete 29c, the concrete 31c, and the primary lining 27c are installed. After the arc-shaped pipe 17c and the arc-shaped pipe 19c are installed, the annular pipe 23c is formed as shown in FIG. 5B in the same manner as the annular pipe 23 in the merge start section 7 and the acceleration section 9.
[0041]
Next, concrete 31c is provided between the outer peripheral surface of the annular pipe 23c and the inner peripheral surface of the side portion 45c of the main tunnel 1, and concrete is provided between the annular pipe 23c and the inner peripheral surface of the side portion 47c of the ramp portion tunnel 3. Fill 29c. Then, water between the annular pipes 23c is stopped by frozen soil (not shown), and a portion of the ground 15c surrounded by the annular pipe 23c, the side part 51c of the main tunnel 1 and the side part 47c of the ramp part tunnel 3 (see FIG. 5 (a)) is excavated.
[0042]
After excavation of the ground 15c, a primary lining 27c is applied along the inner peripheral surface of the portion of the annular pipe 23c installed outside the main tunnel 1 and the ramp tunnel 3. The primary lining 27c ensures the water stoppage between the annular pipes 23c. Next, freezing of frozen soil (not shown) remaining outside the annular pipe 23c is released, and concrete is placed in the annular pipe 23c. Then, as shown in FIG. 2 and FIG. 5B, the segments of the side portion 51c and the side portion 49c facing each other of the main tunnel 1 and the ramp portion tunnel 3 are removed leaving a part.
[0043]
FIG. 5C is a diagram illustrating a state where the merging end section 11 of the merging portion 43 is completed, and is a cross-sectional view taken along C2-C2 in FIG. After removal of the side 51c and side 49c segments, along the inner peripheral surface of the primary lining 27c and the inner peripheral surface of the portion of the annular pipe 23c disposed inside the main tunnel 1 and the ramp tunnel 3 Then, the secondary lining 33c is applied, and the road 41 is constructed inside the secondary lining 33c. As shown in FIG. 2, on the road 41, the width of the road 35 is gradually reduced to return to the normal width.
[0044]
As shown in FIGS. 3 to 5, a merging start section 7, an acceleration section 9, and a merging end section 11 are sequentially constructed, and a merging section 43 of the main tunnel 1 and the ramp section tunnel 3, and a road 53 constructed therein. Complete the whole. The road 53 includes a road 35, a road 37, a road 39, a road 41, and the like. The road 53 is used as, for example, a junction or a branch.
[0045]
As described above, in the present embodiment, the annular pipe 23 penetrating the main tunnel 1 and the ramp tunnel 3 is formed, and as shown in FIG. Used for the body of At this time, by connecting the arc-shaped pipe 17 and the arc-shaped pipe 19 within the main line tunnel 1 and the lamp section tunnel 3, a reliable load-resistant structure can be obtained.
[0046]
Further, by using the main tunnel 1 and the ramp tunnel 3 as shield tunnels, the junction 43 can be safely constructed even at a large depth. Further, as shown in FIG. 2, predetermined portions of the main tunnel 1 and the ramp portion tunnel 3 are widened so that the side portions 45a, 45b and 45c and the side portion 47a are outside the side portion 45d and the side portion 47d of the normal section 10. Since the annular pipe 23 is disposed on the extension of the side portion 45d and the side portion 47d of the normal section 10, the annular pipe 23 does not violate the building limit.
[0047]
In this embodiment, the freezing method is used to stop water between the annular pipes 23, but the ground may be improved by other methods. In the present embodiment, a road tunnel has been described as an example. However, a merge portion 43 of a tunnel other than a road may be formed by a similar method.
[0048]
The main tunnel 1 and the ramp tunnel 3 that constitute the junction 43 are not limited to the shapes shown in FIG. For example, it is not necessary to return the inner space of the main tunnel 1 and the ramp tunnel 3 to the normal section in the acceleration section 9. However, it is more economical to return to the normal cross section.
[0049]
【The invention's effect】
As described above in detail, according to the present invention, it is possible to provide a tunnel junction construction method and a tunnel junction that can be safely constructed even in a deep underground.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of the main tunnel 1 and the ramp tunnel 3 near the junction planning section 13 cut along a horizontal plane. FIG. 2 is a cross-sectional view of the junction 43 cut along a horizontal plane. FIG. 4 is a diagram illustrating each process for constructing the merge start section 7 of the merge section 43. FIG. 5 is a diagram illustrating each process for constructing the merge end section 11 of the merge section 43. Explanation of symbols]
1 ......... Main tunnel 3 ......... Ramp part tunnel 7 ...... Merging start section 9 ...... Acceleration section 11 ...... Merging end section 13 ...... Merging section planning section 15 ......... Ground 17, 19 ... ...... Arc pipe 21 ......... Pipe 23 ......... Annular pipe 27 ......... Primary lining 29, 31 .... Concrete 33 ......... Secondary lining 43 ......... Merging sections 45, 47, 49, 51 ………side

Claims (3)

  1. A method for constructing a junction of two tunnels,
    Widening the first tunnel and the second tunnel at the start point of the junction, the inner space of the first tunnel and the inner space of the second tunnel to the side not facing each other, and the end point of the junction And (a) providing the inner space of the first tunnel by reducing the width of the side not facing the second tunnel and returning to the normal cross section ;
    A first arc-shaped pipe is installed between the upper half of the first tunnel and the upper half of the second tunnel, and the lower half of the first tunnel and the lower half of the second tunnel A second arcuate pipe is installed between the end of the first arcuate pipe and the end of the second arcuate pipe inside the first tunnel and the second tunnel. (B) forming a pipe roof by connecting a plurality of annular pipes penetrating through the first tunnel and the second tunnel and stopping water between the annular pipes. When,
    A first reinforcing member between an outer peripheral surface of the pipe roof and an inner peripheral surface of the side portion of the first tunnel; and an outer peripheral surface of the pipe roof and an inner peripheral surface of the side portion of the second tunnel. A step (e) of installing a second reinforcing member between,
    Excavating the ground surrounded by the pipe roof, the first tunnel, and the second tunnel, and removing the opposing sides of the first tunnel and the second tunnel (c);
    A step (d) of lining the inside of the pipe roof;
    A method for constructing a tunnel junction.
  2. In the step (a),
    At a position advanced a predetermined distance from the starting point, the inner space of the first tunnel is reduced to the normal cross section by reducing the width facing the second tunnel,
    At a position leaving a predetermined distance to the end point, said inner space of the first tunnel, the second method for constructing a tunnel junction unit according to claim 1, wherein the widening on the side tunnel facing .
  3. In the step (a), the inner space of the second tunnel is returned to the normal cross section by reducing the width of the inner side of the second tunnel not facing the first tunnel at a position advanced a predetermined distance from the starting point. The method for constructing a tunnel junction according to claim 1 .
JP2003151502A 2003-05-28 2003-05-28 Method for constructing tunnel junction and tunnel junction Active JP4493936B2 (en)

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JP4802529B2 (en) * 2005-03-18 2011-10-26 アイシン精機株式会社 Electric liquid pump, control method and control device thereof
CN100425801C (en) * 2005-06-17 2008-10-15 上海市隧道工程轨道交通设计研究院 Counter pulling device used in underground pipe culvert linear dark digging
CN100425802C (en) * 2005-06-17 2008-10-15 上海市隧道工程轨道交通设计研究院 Counter pulling method used in underground pipe culvert linear dark digging
JP4750568B2 (en) * 2006-01-30 2011-08-17 佐藤工業株式会社 Tunnel junction construction method and tunnel junction structure
JP4668829B2 (en) * 2006-04-06 2011-04-13 三菱重工メカトロシステムズ株式会社 Tunnel excavation method, tunnel branching / merging widening part using the same, and tunnel branching / merging widening part constructed thereby
JP4816327B2 (en) * 2006-08-22 2011-11-16 株式会社大林組 Widening part formation method of shield tunnel
JP2008075386A (en) * 2006-09-22 2008-04-03 Ohbayashi Corp Spectacle shield tunnel structure and method of constructing same
JP5022150B2 (en) * 2007-09-04 2012-09-12 鹿島建設株式会社 Tunnel merge structure and method for constructing tunnel merge structure
JP2017043983A (en) * 2015-08-27 2017-03-02 鹿島建設株式会社 Underground structure, and construction method of underground structure

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Publication number Priority date Publication date Assignee Title
JPH03279600A (en) * 1990-03-29 1991-12-10 Hazama Gumi Ltd Construction method of large cavity
JPH05256098A (en) * 1992-03-13 1993-10-05 Mitsui Constr Co Ltd Construction method of underground structure having large section and split block used for said structure and excavator
JPH06102955B2 (en) * 1991-05-20 1994-12-14 エス・ティ・ケイ株式会社 Intermediate lining structure of the tunnel
JPH0711864A (en) * 1993-06-28 1995-01-13 Nippon Kensetsu Kikaika Kyokai Injector with double packer for curved pipe
JP2002227598A (en) * 2001-01-26 2002-08-14 Nippon Zenith Pipe Co Ltd Construction method for underground structure
JP2004124489A (en) * 2002-10-02 2004-04-22 Kajima Corp Underground structure and its construction method

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03279600A (en) * 1990-03-29 1991-12-10 Hazama Gumi Ltd Construction method of large cavity
JPH06102955B2 (en) * 1991-05-20 1994-12-14 エス・ティ・ケイ株式会社 Intermediate lining structure of the tunnel
JPH05256098A (en) * 1992-03-13 1993-10-05 Mitsui Constr Co Ltd Construction method of underground structure having large section and split block used for said structure and excavator
JPH0711864A (en) * 1993-06-28 1995-01-13 Nippon Kensetsu Kikaika Kyokai Injector with double packer for curved pipe
JP2002227598A (en) * 2001-01-26 2002-08-14 Nippon Zenith Pipe Co Ltd Construction method for underground structure
JP2004124489A (en) * 2002-10-02 2004-04-22 Kajima Corp Underground structure and its construction method

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