JPH0464688A - Tunneling method - Google Patents
Tunneling methodInfo
- Publication number
- JPH0464688A JPH0464688A JP17687690A JP17687690A JPH0464688A JP H0464688 A JPH0464688 A JP H0464688A JP 17687690 A JP17687690 A JP 17687690A JP 17687690 A JP17687690 A JP 17687690A JP H0464688 A JPH0464688 A JP H0464688A
- Authority
- JP
- Japan
- Prior art keywords
- tunnel
- excavated
- heat pipe
- ground
- cooled
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims description 18
- 230000005641 tunneling Effects 0.000 title 1
- 238000005057 refrigeration Methods 0.000 claims description 13
- 239000003507 refrigerant Substances 0.000 claims description 12
- 238000009412 basement excavation Methods 0.000 claims description 10
- 238000001704 evaporation Methods 0.000 claims description 10
- 238000007710 freezing Methods 0.000 abstract description 13
- 230000008014 freezing Effects 0.000 abstract description 13
- 238000010276 construction Methods 0.000 abstract description 5
- 239000002826 coolant Substances 0.000 abstract 2
- 238000001816 cooling Methods 0.000 description 9
- 230000008020 evaporation Effects 0.000 description 6
- 239000012530 fluid Substances 0.000 description 6
- 238000003780 insertion Methods 0.000 description 5
- 230000037431 insertion Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000002528 anti-freeze Effects 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 239000012267 brine Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Landscapes
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明頃 堀削すべきトンネルの周囲地山を凍結して、
トンネルを堀削するトンネル堀削方法に関する。[Detailed description of the invention] [Industrial field of application] Around the time of the present invention, the surrounding ground of a tunnel to be excavated is frozen,
This invention relates to a tunnel excavation method for excavating a tunnel.
従東 含木地山内でトンネルを堀削する場合へその地山
を固化する方法として、薬液注入方法、セメント注入方
法、威服 不凍液（ブライン）を使用して地山を凍結す
る方法等が採用されている。When excavating a tunnel in a wood-containing mountain, the following methods are used to solidify the ground: chemical injection, cement injection, and freezing the ground using antifreeze (brine). has been done.
前記不凍液による地山の凍結方法代 熱応答性が遅く、
熱伝導率が低いため、凍土形成に要する期間が長く、そ
のため凍土形成後のトンネル堀削開始までの準備期間が
長くなり、工事費も高くなつへ
本発明代 前記事項に鑑みなされたものであり、トンネ
ルを堀削すべき台木地山を凍結する方法において、凍結
固化を、速やかに行い、トンネルの堀削を速やかに行え
るようにすることを技術的課題とする。The method of freezing the ground using antifreeze has a slow thermal response;
Due to the low thermal conductivity, it takes a long time for frozen soil to form, which lengthens the preparation period after the frozen soil is formed and increases the construction cost. In a method of freezing a rootstock pile from which a tunnel is to be excavated, the technical problem is to quickly freeze and solidify it so that the tunnel can be excavated quickly.
本発明１戴 堀削すべきトンネル２２の周囲部分２４と
なる地山＆ミ ヒートパイプ１を挿入し このヒートパ
イプ１の凝縮部８を、冷凍装置１５によって冷却された
冷媒で冷却し ヒートパイプ１の蒸発部１０で堀削すべ
きトンネル２２の周囲部分２４となる地山を凍結してト
ンネル２２を堀削するトンネル堀削方法とした
また、堀削すべきトンネル２２の周囲部分２４となる地
山レミ 複数本のパイロットトンネル２９を堀削し こ
のパイロットトンネル２９から前記堀削すべきトンネル
２２の周囲部分２４となる地山に、 ヒートパイプＩを
、堀削すべきトンネル２２の周方向となる方向に向けて
挿入し このヒートパイプ１の凝縮部８を、冷凍装置１
５によって冷却された冷媒で冷却し、ヒートパイプ１の
蒸発部１０で、堀削すべきトンネル２２の周囲部分２４
となる地山を凍結してトンネル２２を堀削するトンネル
堀削方法としたさらに、堀削すべきトンネル２２の周囲
部分２４となる地山＆ミ 地表３０よりヒートパイプ１
を挿入しこのヒートパイプ１の凝縮部８を冷凍装置１５
によって冷却された冷媒で冷却獣 ヒートパイプ１の蒸
発部１０で、堀削すべきトンネル２２の周囲部分２４と
なる地山を凍結してトンネル２２を堀削するトンネル堀
削方法とした
〔作用〕
本発明１戴 堀削すべきトンネル２２の周囲部分２４と
なる地山の凍結を、冷凍装置１５によって冷却されたと
一ドパイブｌで冷却しているので、地山の凍結が極低温
へ しかも速やかに行われる。Invention 1 A heat pipe 1 is inserted into the ground and the surrounding area 24 of the tunnel 22 to be excavated, and the condensing part 8 of the heat pipe 1 is cooled with a refrigerant cooled by a refrigeration device 15. The tunnel excavation method involves freezing the ground that will become the surrounding area 24 of the tunnel 22 to be excavated in the evaporation section 10 of Mountain Remi A plurality of pilot tunnels 29 are excavated, and a heat pipe I is placed from the pilot tunnels 29 into the ground that will become the surrounding area 24 of the tunnel 22 to be excavated, in the circumferential direction of the tunnel 22 to be excavated. Insert the condensing part 8 of the heat pipe 1 into the refrigeration equipment 1.
The peripheral portion 24 of the tunnel 22 to be excavated is cooled by the refrigerant cooled by
A tunnel excavation method is adopted in which the tunnel 22 is excavated by freezing the ground that will become the ground that will become the ground that will become the surrounding area 24 of the tunnel 22 to be excavated.
Insert the condensing section 8 of the heat pipe 1 into the refrigeration device 15.
[Operation] A tunnel excavation method in which the tunnel 22 is excavated by freezing the ground that will become the surrounding area 24 of the tunnel 22 to be excavated in the evaporation part 10 of the heat pipe 1 using a cooled refrigerant. Present invention 1: Since the frozen ground that will become the surrounding area 24 of the tunnel 22 to be excavated is cooled by the freezing device 15, the frozen ground is cooled to an extremely low temperature and quickly. It will be done.
そして、パイロットトンネル２９を設けた場合田ヒート
パイプ１の冷却ジャケット１７をバイロフトトンネル２
９内に膜室するので、設置場所がトンネル２２を堀削す
る装置と競合せず、凍結及び、堀削が能率的に行える。When the pilot tunnel 29 is provided, the cooling jacket 17 of the heat pipe 1 is connected to the biloft tunnel 2.
Since the membrane chamber is located in the tunnel 9, the installation location does not compete with the device for excavating the tunnel 22, and freezing and excavation can be performed efficiently.
さら１ 地表３０よりヒートパイプ１を挿入する場合＃
戴 堀削すべきトンネル２２が浅い層に堀削される場合
へ 採用する凍結方法であり、この場合も、ヒートパイ
プ１の冷却ジャケット１７とトンネル２２を堀削する装
置の設置場所が競合しない。Further 1 When inserting heat pipe 1 from the ground surface 30#
This freezing method is adopted when the tunnel 22 to be excavated is excavated in a shallow layer, and even in this case, the installation location of the cooling jacket 17 of the heat pipe 1 and the device for excavating the tunnel 22 do not conflict.
第１図ないし第３図版 本発明で使用する装置の一実施
例と、本発明の一実施例の説明用の図である。FIGS. 1 to 3 are diagrams for explaining one embodiment of the apparatus used in the present invention and one embodiment of the present invention.
この実施例のヒートパイプ１１戴 金属管で形成され
た密閉容器２を備えており、この密閉容器２の内周面に
は毛細管構造体３が張設しである。この密閉容器２の基
部の外周にＧＬ 冷却ジャケット１７が着脱可能に装
着されており、この冷却ジャケット１７屯 冷凍装置
１５で冷却された冷媒が膨張弁１６を経て注入されるよ
うに形成しである。そして、この冷却ジャケット１７が
装着された部分のヒートパイプ１１戴 凝縮部８とな
る。The heat pipe 11 of this embodiment is equipped with a closed container 2 formed of a metal tube, and a capillary structure 3 is stretched over the inner peripheral surface of the closed container 2. A GL cooling jacket 17 is detachably attached to the outer periphery of the base of the sealed container 2, and the cooling jacket 17 is formed so that the refrigerant cooled by the refrigeration device 15 is injected through the expansion valve 16. . A portion of the heat pipe 11 to which this cooling jacket 17 is attached becomes the condensing section 8.
前記凝縮部８に続いて、ヒートパイプ１の密閉容器２と
毛細管構造体３間に１戴 断熱材４を介挿させた断熱部
９が設けてあり、この断熱部９に続く部分が蒸発部１０
となっており、このヒートパイプ１内には 窒素、メタ
ンその他の作動流体が封入されている。Following the condensing section 8, a heat insulating section 9 in which a heat insulating material 4 is inserted between the airtight container 2 of the heat pipe 1 and the capillary structure 3 is provided, and the portion following this heat insulating section 9 is an evaporation section. 10
The heat pipe 1 is filled with nitrogen, methane, and other working fluids.
そして、このヒートパイプｌ ｉ４ 次に記載するよ
うに作用する。すなわち、冷凍装置１５で圧縮され冷却
された冷媒が、膨張弁１６を経て膨張して極低温となり
、冷却ジャケット１７内に流入する。This heat pipe l i4 operates as described below. That is, the refrigerant compressed and cooled by the refrigeration device 15 expands through the expansion valve 16 to become extremely low temperature, and then flows into the cooling jacket 17 .
そうすると、この冷却ジャケット１７に接するヒートパ
イプ１内の作動流体が冷却し 凝縮してヒートパイプ１
の凝縮部８の毛細管構造体３に吸収される。Then, the working fluid inside the heat pipe 1 in contact with this cooling jacket 17 is cooled and condensed, and the heat pipe 1
is absorbed into the capillary structure 3 of the condensing section 8.
そして、凝縮部８の毛細管構造体３内の作動流体頃 毛
細管現象により、ヒートパイプ１内にある毛細管構造体
３内を移動限 ヒートパイプ１の蒸発部１０の毛細管構
造体３内に移る。The working fluid within the capillary structure 3 of the condensing section 8 moves within the capillary structure 3 within the heat pipe 1 due to capillary action and moves into the capillary structure 3 of the evaporation section 10 of the heat pipe 1 .
そして、蒸発部ｌＯの毛細管構造体３内の作動流体は、
ヒートパイプ１の蒸発部１０に接する地山等の熱を吸収
して蒸発し ヒートパイプｌ内を移動Ｌ ヒートパイプ
ｌの凝縮部８内に移り、冷却さＬ 凝縮して再び凝縮部
８の毛細管構造体３に吸収される。The working fluid in the capillary structure 3 of the evaporator 1O is
It absorbs the heat of the ground, etc. that is in contact with the evaporation section 10 of the heat pipe 1, evaporates, moves inside the heat pipe L, moves into the condensation section 8 of the heat pipe I, and is cooled L. It condenses and returns to the capillary tube of the condensation section 8. It is absorbed into the structure 3.
そして、前記ヒートパイプ１の断熱材４（戴 密閉容器
２の外側に装着することも可能である。The heat insulating material 4 of the heat pipe 1 can also be attached to the outside of the sealed container 2.
この実施例のトンネル堀削方法頃 堀削されたトンネル
２２の端部から、堀削すべきトンネル２２の周囲部分２
４となる地山１ 穿孔機で多数のヒートパイプ挿入孔を
穿孔上 この挿入孔にヒートパイプ１を挿入する力＼
地山が軟らかい場合鷹 ヒートパイプ１を地山に打ち込
んで挿入する。About the tunnel excavation method of this embodiment From the end of the excavated tunnel 22 to the surrounding area 2 of the tunnel 22 to be excavated.
4 Earth 1 Drilling a large number of heat pipe insertion holes with a drilling machine Power to insert heat pipe 1 into these insertion holes ＼
If the ground is soft, drive heat pipe 1 into the ground and insert it.
そして、このヒートパイプ１の凝縮部８の外周に檄 冷
却ジャケット１７が装着してあり、この凝縮部８代 冷
凍装置１５で冷却された冷媒力で、膨張弁１６を経て膨
張して極低温化した状態で冷却ジャケット１７内に流入
し この流入した冷媒によって冷却されるものである。A cooling jacket 17 is attached to the outer periphery of the condensing section 8 of the heat pipe 1, and the refrigerant cooled by the refrigeration device 15 expands through the expansion valve 16 and reaches an extremely low temperature. In this state, the refrigerant flows into the cooling jacket 17 and is cooled by this inflowing refrigerant.
そして、前記ヒートパイプ１内の凝縮部８で冷却され凝
縮した作動流体カー 毛細管現象により、蒸発部１０に
移動Ｌ−蒸発部１０で堀削すべきトンネル２２の周囲部
分２４となる地山の熱を吸収して、その地山を凍結する
。そして、蒸発部１０で熱を吸収して蒸発した作動流体
（戴 凝縮部８に移動し 再び冷却され凝縮する。The working fluid cooled and condensed in the condensing section 8 in the heat pipe 1 is transferred to the evaporating section 10 by capillary action. absorbs and freezes the ground. Then, the working fluid that absorbs heat and evaporates in the evaporator 10 moves to the condenser 8 where it is cooled and condensed again.
前記のようにして、凍結した周囲部分２４の内側を図示
してない堀削装置で堀削する。そして、堀削したトンネ
ル２２の内側には、図示してないセグメント等を装着す
る。As described above, the inside of the frozen surrounding portion 24 is excavated using a not-shown excavation device. Then, segments and the like (not shown) are attached to the inside of the excavated tunnel 22.
また、前記冷凍装置１５により温度の上昇した空気（戯
図示してない換気装置で、 トンネル２２の外部に排
出するように形成しである。Further, the air whose temperature has increased due to the refrigeration device 15 (not shown in the figure) is configured to be discharged to the outside of the tunnel 22.
第４図、第５図はパイロットトンネル２９を堀削してト
ンネル２２を堀削する方法の一実施例の説明用の図であ
り、以下さきに記載した説明と同様の部分頃 同一の符
号を用い説明を省略したこの実施例頃 堀削すべきトン
ネル２２の周囲部分２４となる地山の上部と両側部＆′
−Ｓ ３本のパイロットトンネル２９を堀削して設けた
ものである。そして、このパイロットトンネル２９から
堀削すべきトンネル２２の周囲部分２４の地山く 多数
のヒートパイプ挿入孔を、堀削すべきトンネル２２の周
方向となる方向に向けて穿孔し この挿入孔にヒートパ
イプｌを挿入したものである。4 and 5 are diagrams for explaining one embodiment of the method of excavating the pilot tunnel 29 and excavating the tunnel 22, and the same reference numerals are used for the same parts as in the explanation described above. In this example, the explanation of which is omitted, the upper part and both sides of the ground which will become the surrounding part 24 of the tunnel 22 to be excavated.
-S Three pilot tunnels 29 are dug and provided. From this pilot tunnel 29, a large number of heat pipe insertion holes are drilled in the ground around the surrounding portion 24 of the tunnel 22 to be excavated in the circumferential direction of the tunnel 22 to be excavated. A heat pipe l is inserted.
そして、このと−ドパイブ１により、堀削すべきトンネ
ル２２の周囲部分２４の地山を凍結してトンネル２２を
堀削するものである。Then, the tunnel 22 is excavated by freezing the ground around the surrounding portion 24 of the tunnel 22 to be excavated using the doped pipe 1.
第６図（飄 ヒートパイプ１を地表３０より挿入して地
山を凍結し トンネル２２を堀削する方法の一実施例の
説明用の図である。FIG. 6 is a diagram for explaining an embodiment of a method of inserting the heat pipe 1 from the ground surface 30 to freeze the ground and excavate the tunnel 22.
この実施例ＧＬ 堀削すべきトンネル２２の周囲部分
２４となる地山く 地表３０よりヒートパイプ挿入孔を
穿孔上 この挿入孔にヒートパイプ１を挿入し 前記ヒ
ートパイプｌのうち、周囲部分２４に挿入される部分を
蒸発部１０と１− 蒸発部１０と凝縮部８との間を断熱
部９として、ヒートパイプ１の先端部に設けた蒸発部１
０で周囲部分２４の地山を凍結してトンネル２２を堀削
するものである。Example GL A heat pipe insertion hole is drilled from the ground surface 30 in the ground that will become the surrounding portion 24 of the tunnel 22 to be excavated.The heat pipe 1 is inserted into this insertion hole, and the heat pipe 1 is inserted into the surrounding portion 24 of the heat pipe 1. The inserted part is the evaporator 10 and the evaporator 1 provided at the tip of the heat pipe 1 with a heat insulating part 9 between the evaporator 10 and the condenser 8.
0, the ground in the surrounding area 24 is frozen and the tunnel 22 is excavated.
そして、前記第６図に示す如く、堀削すべきトンネル２
２が地表３０から近距離にある場合檄 周囲部分２４の
上部を周囲部分２４と同様に凍結してもよ〔発明の効果
〕
本発明は、ヒートパイプ１よって堀削すべきトンネル２
２の周囲部分２４となる地山を冷却しているので、周囲
部分２４の地山を極低温に凍結することができる。Then, as shown in FIG. 6, the tunnel 2 to be excavated is
When the tunnel 2 is located at a short distance from the ground surface 30, the upper part of the surrounding portion 24 may be frozen in the same manner as the surrounding portion 24.
Since the ground that forms the surrounding portion 24 of No. 2 is cooled, the ground that forms the surrounding portion 24 can be frozen to an extremely low temperature.
また、極低温に冷却するので、凍土形成期間が短縮でき
る。Additionally, since it is cooled to an extremely low temperature, the period during which frozen soil is formed can be shortened.
そして、その結果工事費が低減になる。As a result, construction costs are reduced.
さらは ヒートパイプ１檄 冷凍装置１５と連通されて
いない独立したものに形成されているので、冷媒投入、
或哄 冷凍装置１５の運転の断続運転が可能であり、凍
土放置期間内のランニングコストが低減できる。Furthermore, the heat pipe 1 is formed as an independent unit that is not connected to the refrigeration device 15, so it is necessary to input the refrigerant,
It is possible to operate the refrigeration device 15 intermittently, and the running cost during the period when the frozen ground is left can be reduced.
そして、ヒートパイプ１１戯 運転中メンテナンスフ
リーであり、転用が可能であり、便利である。Furthermore, the heat pipe 11 is maintenance-free during operation, can be used for other purposes, and is convenient.
第１図代 本発明で使用するヒートパイプを用いた凍結
装置の一実施例の一部破砕し断面した側面艮 第２図代
堀削すべきトンネルの周囲部分となる地山の凍結方法
の一実施例の説明用の側面よりみた断面は 第３図は、
第２図のｍ−ｍ線の断面Ａ 第４図はパイロットトンネ
ルを堀削してトンネルを堀削する方法の一実施例の説明
用の側面よりみた断面ぼ 第５図は第４図のＶ−Ｖ線の
断面風 第６図はヒートパイプを地表より挿入して地山
を凍結してトンネルを堀削する方法の一実施例の説明用
の側面よりみた断面図である。
１・・ヒートパイプ、 ８・・・凝縮肱１０・・・蒸
発部、１５・・冷凍装置、２２・・・トンネル、２４・
・堀削すべきトンネルの周囲部分、２９・・・パイロッ
トトンネル、３０ 地表特許出願人 前田建設工業
株式会社Fig. 1 A partially fractured and cross-sectional side view of an embodiment of the freezing device using a heat pipe used in the present invention Fig. 2 A method of freezing the ground that will be the surrounding area of the tunnel to be excavated The cross section seen from the side for explaining the example is shown in Figure 3.
Cross section A taken along the line m-m in Figure 2 Figure 4 is a cross section seen from the side for explaining an example of a method for excavating a tunnel by digging a pilot tunnel Figure 5 is V in Figure 4 - Cross-sectional wind of line V FIG. 6 is a cross-sectional view seen from the side for explaining one embodiment of a method of inserting a heat pipe from the ground surface to freeze the ground and excavate a tunnel. DESCRIPTION OF SYMBOLS 1... Heat pipe, 8... Condensing arm 10... Evaporation part, 15... Refrigeration device, 22... Tunnel, 24...
- Surrounding area of tunnel to be excavated, 29...Pilot tunnel, 30 Surface patent applicant: Maeda Construction Co., Ltd.
Claims (3)
ートパイプを挿入し、このヒートパイプの凝縮部を、冷
凍装置によって冷却された冷媒で冷却し、ヒートパイプ
の蒸発部で堀削すべきトンネルの周囲部分となる地山を
凍結してトンネルにを堀削するトンネル堀削方法。(1) A heat pipe is inserted into the ground surrounding the tunnel to be excavated, the condensing part of this heat pipe is cooled with a refrigerant cooled by a refrigeration system, and the evaporating part of the heat pipe is used to excavate the tunnel. A tunnel excavation method in which the ground surrounding the tunnel is frozen and excavated into a tunnel.
本のパイロットトンネルを堀削し、このパイロットトン
ネルから前記堀削すべきトンネルの周囲部分の地山に、
ヒートパイプを堀削すべきトンネルの周方向となる方向
に向けて挿入し、このヒートパイプの凝縮部を、冷凍装
置によって冷却された冷媒で冷却し、ヒートパイプの蒸
発部で、堀削すべきトンネルの周囲部分となる地山を凍
結してトンネルを堀削するトンネル堀削方法。(2) Excavate multiple pilot tunnels in the ground surrounding the tunnel to be excavated, and from these pilot tunnels into the ground surrounding the tunnel to be excavated,
A heat pipe is inserted in the circumferential direction of the tunnel to be excavated, the condensing part of this heat pipe is cooled with refrigerant cooled by the refrigeration device, and the evaporating part of the heat pipe is used to remove the tunnel to be excavated. A tunnel excavation method in which the ground surrounding the tunnel is frozen and the tunnel is excavated.
表よりヒートパイプを挿入し、このヒートパイプの凝縮
部を冷凍装置によって冷却された冷媒で冷却し、ヒート
パイプの蒸発部で、堀削すべきトンネルの周囲部分とな
る地山を凍結してトンネルを堀削するトンネル堀削方法
。(3) A heat pipe is inserted from the ground surface into the ground surrounding the tunnel to be excavated, the condensing part of this heat pipe is cooled with refrigerant cooled by the refrigeration system, and the evaporating part of the heat pipe A tunnel excavation method in which the ground surrounding the tunnel to be excavated is frozen and the tunnel is excavated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17687690A JP2921934B2 (en) | 1990-07-04 | 1990-07-04 | Tunnel drilling method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17687690A JP2921934B2 (en) | 1990-07-04 | 1990-07-04 | Tunnel drilling method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0464688A true JPH0464688A (en) | 1992-02-28 |
| JP2921934B2 JP2921934B2 (en) | 1999-07-19 |
Family
ID=16021323
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17687690A Expired - Fee Related JP2921934B2 (en) | 1990-07-04 | 1990-07-04 | Tunnel drilling method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2921934B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007120064A (en) * | 2005-10-26 | 2007-05-17 | Shimizu Corp | Construction method of low-temperature underground tank institution |
| JP2008522058A (en) * | 2004-11-29 | 2008-06-26 | セオ，ドン−ヒュン | Pre-support tunnel construction method and equipment adapted to it |
| JP2014237952A (en) * | 2013-06-07 | 2014-12-18 | 鹿島建設株式会社 | Underground wall and method for constructing the underground wall |
-
1990
- 1990-07-04 JP JP17687690A patent/JP2921934B2/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008522058A (en) * | 2004-11-29 | 2008-06-26 | セオ，ドン−ヒュン | Pre-support tunnel construction method and equipment adapted to it |
| JP4768747B2 (en) * | 2004-11-29 | 2011-09-07 | セオ，ドンヒュン | Pre-support tunnel construction method and equipment adapted to it |
| JP2007120064A (en) * | 2005-10-26 | 2007-05-17 | Shimizu Corp | Construction method of low-temperature underground tank institution |
| JP2014237952A (en) * | 2013-06-07 | 2014-12-18 | 鹿島建設株式会社 | Underground wall and method for constructing the underground wall |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2921934B2 (en) | 1999-07-19 |
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