JPH0470495A - No-blasting construction method in hard rock tunnel of large section - Google Patents
No-blasting construction method in hard rock tunnel of large sectionInfo
- Publication number
- JPH0470495A JPH0470495A JP18153390A JP18153390A JPH0470495A JP H0470495 A JPH0470495 A JP H0470495A JP 18153390 A JP18153390 A JP 18153390A JP 18153390 A JP18153390 A JP 18153390A JP H0470495 A JPH0470495 A JP H0470495A
- Authority
- JP
- Japan
- Prior art keywords
- slit
- face
- tunnel
- hard rock
- excavated
- 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
- 239000011435 rock Substances 0.000 title claims abstract description 13
- 238000005422 blasting Methods 0.000 title claims description 8
- 238000010276 construction Methods 0.000 title claims description 5
- 238000005553 drilling Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 5
- 238000010438 heat treatment Methods 0.000 abstract 2
- 238000009412 basement excavation Methods 0.000 description 5
- 238000003801 milling Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Abstract
Description
【発明の詳細な説明】
[産業上の利用分野]
本発明は、発破による振動や騒音の規制を受け、トンネ
ル掘削で発破工法が採用できない大断面の硬岩トンネル
における無発破工法に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a non-blasting method for hard rock tunnels with large cross-sections where blasting methods cannot be used in tunnel excavation due to restrictions on vibration and noise caused by blasting.
[従来の技術]
トンネル掘削に際し、岩盤強度が800kg/cffl
以下の場合は、ロードヘッダ等のトンネル掘削機で施工
しており、岩盤強度が1000kg/cnfを越える岩
盤では、主としてTBMいわゆるトンネルボーリングマ
シンに頼っていた。しかし、このトンネルボーリングマ
シンは、掘削断面が円形である、直径が5〜6mである
、機械費が高い、などの欠点がある。[Conventional technology] When excavating a tunnel, the rock strength is 800 kg/cffl.
In the following cases, tunnel boring machines such as road headers are used for construction, and for rock masses with rock strength exceeding 1000 kg/cnf, tunnel boring machines (TBMs) have been mainly relied upon. However, this tunnel boring machine has drawbacks such as a circular excavation cross section, a diameter of 5 to 6 m, and a high machine cost.
一般に、大断面トンネルは、トンネル鏡面を少しづつ静
的破砕機により掘削しており、掘削能率が低い。Generally, in large-section tunnels, the mirror surface of the tunnel is excavated little by little using a static crusher, resulting in low excavation efficiency.
本発明は、掘削能率が高い大断面の硬岩トンネルにおけ
る無発破工法を提供することを目的としている。An object of the present invention is to provide a non-blasting construction method for large-section hard rock tunnels with high excavation efficiency.
[課題を解決するための手段]
本発明によれば、導孔掘削機により削面機が作業できる
大きさの導孔を掘削し、該導孔内から削面機により放射
状のスリット又は連続孔を削面し、本坑鏡面から破砕機
により鏡面と前記スリット又は連続孔との間の壁体を破
砕して本坑を掘進するようにしている。[Means for Solving the Problems] According to the present invention, a guide hole of a size that can be worked by a surface milling machine is excavated by a guide hole drilling machine, and a radial slit or a continuous hole is ground from inside the guide hole by a surface milling machine. Then, the wall between the mirror surface and the slit or continuous hole is crushed by a crusher from the mirror surface of the main shaft, and the main shaft is excavated.
上記導孔掘削機には、トンネルボーリングマシン、硬岩
トンネル掘削機等を使用するのが好ましい。It is preferable to use a tunnel boring machine, a hard rock tunnel excavator, etc. as the guide hole excavator.
また、剛固機には、スリットカッタ、連続孔掘削機を用
いるのが好ましい。Moreover, it is preferable to use a slit cutter or a continuous hole drilling machine as the rigid machine.
また、破砕機には、ブレーカ等を使用するのが好ましい
。Further, it is preferable to use a breaker or the like in the crusher.
[作用]
上記の大断面の硬岩トンネルにおける無発破工法におい
ては、本坑側のスリット又は連続孔により本坑鏡面との
間に壁体が形成される。したがって、スリットカッタ等
破砕機により前記壁体を容易に破砕し、スリット又は連
続孔の奥の面により前記壁体を容易に破砕し、スリット
又は連続孔の奥の面により新鏡面を形成する。以下同様
の態様で逐次壁体を破砕してトンネル本坑を能率的に掘
進する。[Operation] In the non-blasting construction method for hard rock tunnels with large cross sections, a wall is formed between the slit or continuous hole on the main shaft side and the mirror surface of the main shaft. Therefore, the wall body is easily crushed by a crusher such as a slit cutter, the wall body is easily crushed by the inner surface of the slit or the continuous hole, and a new mirror surface is formed by the inner surface of the slit or the continuous hole. Thereafter, the walls are sequentially crushed in the same manner to efficiently excavate the tunnel main shaft.
[実施例] 以下図面を参照して本発明の詳細な説明する。[Example] The present invention will be described in detail below with reference to the drawings.
第1図及び第2図において、先ず、図示しないトンネル
ボーリングマシン又は硬岩トンネル掘削機等の導孔掘削
機により導孔Aを掘削する。その導孔Δの大きさは、剛
固機すなわち図示の例ではスリットカッタ1が作業でき
る大きさに形成されている。なお、地質が悪い場合は、
導孔Aの周壁を吹付はコンクリート又はファイバボルト
で支保しておく。1 and 2, first, a guide hole A is excavated using a guide hole excavator such as a tunnel boring machine or a hard rock tunnel excavator (not shown). The size of the guide hole Δ is set to a size that allows a rigid machine, that is, a slit cutter 1 in the illustrated example, to work thereon. In addition, if the geology is poor,
Support the peripheral wall of the guide hole A with concrete or fiber bolts.
次いで、スリットカッタ1により岩盤Bに多数の複数列
のスリブ1−C1〜C5(以下総称する場合は符号Cを
用いる)を剛固する。なお、この際にスリットカッタ1
を複数台使用し、トンネル掘削のスピードを早めるよう
にするのが好ましい。Next, a large number of rows of slits 1-C1 to C5 (hereinafter referred to generically as C) are solidified on the bedrock B using the slit cutter 1. In addition, at this time, slit cutter 1
It is preferable to use multiple machines to speed up tunnel excavation.
次いで、本坑りから破砕機すなわち図示の例ではブレー
カ2により、鏡面Eと鏡面E側のスリットCとにより形
成された壁体B1を破砕し、スリブ)CIの奥の面によ
り新鏡面の一部E1を形成し、同様の手順で逐次新鏡面
の一部E5を形成して、本坑りを一次坑D1まで掘削す
る。Next, the wall B1 formed by the mirror surface E and the slit C on the side of the mirror surface E is crushed by a crusher, that is, a breaker 2 in the illustrated example, from the main shaft, and one part of the new mirror surface is crushed by the inner surface of the slit CI. A part E1 is formed, and a part E5 of the new mirror surface is sequentially formed in the same manner, and the main shaft is excavated to the primary shaft D1.
次いで、スリットカッタ1により一次坑D]に前記同様
のスリットC6・・・を剛固する。Next, slits C6 similar to those described above are rigidly made in the primary pit D using the slit cutter 1.
次いで、ブレーカ2により鏡面EとスリットC6との間
の壁体を破砕し、本坑りを二次坑D2まて掘削する。Next, the wall between the mirror surface E and the slit C6 is broken by the breaker 2, and the main shaft is excavated into a secondary shaft D2.
以下同様の手順を繰返し、二次坑D2を本坑りまで掘削
して鏡面Eを前進し、トンネルを能率的に掘進する。Thereafter, the same procedure is repeated, the secondary shaft D2 is excavated to the main shaft, the mirror surface E is advanced, and the tunnel is efficiently excavated.
[発明の効果コ
以上説明したように本発明によれば、トンネルボーリン
グマシン又は硬岩トンネル掘削機等の導孔掘削機、スリ
ットカッタ等の剛固機及びブレーカ等破砕機等の在来の
大きさの機械を組合せて用い、発破を使用しないで大断
面の硬岩トンネルを能率良く掘削することができる。[Effects of the Invention] As explained above, according to the present invention, conventional large-sized hole excavators such as tunnel boring machines or hard rock tunnel excavators, rigid machines such as slit cutters, and crushers such as breakers can be used. By using this machine in combination, it is possible to efficiently excavate large-section hard rock tunnels without using blasting.
第1図は本発明の〜実施態様を示す垂直断面図、第2図
は左半部に一次坑のスリット、右半部に二次坑のスリッ
トの側面状態を示す正面図である。
A・・・導孔 C・・・スリット D・・・本坑
E・・・鏡面 1・・・スリットカッタ 2・・
・プレー力FIG. 1 is a vertical sectional view showing an embodiment of the present invention, and FIG. 2 is a front view showing a side view of the slit of the primary hole in the left half and the slit of the secondary hole in the right half. A... Leading hole C... Slit D... Main hole
E... Mirror surface 1... Slit cutter 2...
・Playing ability
Claims (1)
削し、該導孔内から削面機により放射状のスリット又は
連続孔を削面し、本坑鏡面から破砕機により鏡面と前記
スリット又は連続孔との間の壁体を破砕して本坑を掘進
することを特徴とする大断面の硬岩トンネルにおける無
発破工法。A guide hole of a size that can be worked by a surface grinder is excavated using a guide hole drilling machine, and radial slits or continuous holes are ground from inside the guide hole using a surface grinder, and a mirror surface and the above-mentioned slits or continuous holes are cut from the mirror surface of the main hole by a crusher. A non-blasting construction method for large-section hard rock tunnels, which is characterized by crushing the walls between the holes and excavating the main shaft.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2181533A JP2804349B2 (en) | 1990-07-11 | 1990-07-11 | Non-blasting method for large-section hard rock tunnel |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2181533A JP2804349B2 (en) | 1990-07-11 | 1990-07-11 | Non-blasting method for large-section hard rock tunnel |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0470495A true JPH0470495A (en) | 1992-03-05 |
JP2804349B2 JP2804349B2 (en) | 1998-09-24 |
Family
ID=16102440
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2181533A Expired - Lifetime JP2804349B2 (en) | 1990-07-11 | 1990-07-11 | Non-blasting method for large-section hard rock tunnel |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2804349B2 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009013603A (en) * | 2007-07-02 | 2009-01-22 | Shimizu Corp | Tunnel construction method |
CN102322272A (en) * | 2011-08-30 | 2012-01-18 | 李志伟 | Hard rock tunnel tunneling method |
CN104314574A (en) * | 2014-10-13 | 2015-01-28 | 福州市规划设计研究院 | Hard rock tunnel non-blasting digging blocking method and construction method |
CN106194200A (en) * | 2016-08-31 | 2016-12-07 | 徐州徐工基础工程机械有限公司 | A kind of efficient construction of hard rock tunnel |
CN111878104A (en) * | 2020-07-22 | 2020-11-03 | 成都易合元科技有限公司 | Method for cracking and breaking rock |
CN112832803A (en) * | 2021-03-17 | 2021-05-25 | 中国铁建重工集团股份有限公司 | Construction method for super-large special-shaped section |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2017038225A1 (en) * | 2015-08-28 | 2017-03-09 | 東洋製罐グループホールディングス株式会社 | High-frequency dielectric heating method |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS518737A (en) * | 1974-07-12 | 1976-01-23 | Daio Kensetsu Kk | SAKUGANKITOOOGATABUREEKAANYORUKOSHITSUGANTONNERUNO MUHATSUHATSUKUTSUSAKUKOHO |
-
1990
- 1990-07-11 JP JP2181533A patent/JP2804349B2/en not_active Expired - Lifetime
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS518737A (en) * | 1974-07-12 | 1976-01-23 | Daio Kensetsu Kk | SAKUGANKITOOOGATABUREEKAANYORUKOSHITSUGANTONNERUNO MUHATSUHATSUKUTSUSAKUKOHO |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009013603A (en) * | 2007-07-02 | 2009-01-22 | Shimizu Corp | Tunnel construction method |
CN102322272A (en) * | 2011-08-30 | 2012-01-18 | 李志伟 | Hard rock tunnel tunneling method |
CN104314574A (en) * | 2014-10-13 | 2015-01-28 | 福州市规划设计研究院 | Hard rock tunnel non-blasting digging blocking method and construction method |
CN106194200A (en) * | 2016-08-31 | 2016-12-07 | 徐州徐工基础工程机械有限公司 | A kind of efficient construction of hard rock tunnel |
CN111878104A (en) * | 2020-07-22 | 2020-11-03 | 成都易合元科技有限公司 | Method for cracking and breaking rock |
CN111878104B (en) * | 2020-07-22 | 2022-07-12 | 成都易合元科技有限公司 | Method for cracking and breaking rock |
CN112832803A (en) * | 2021-03-17 | 2021-05-25 | 中国铁建重工集团股份有限公司 | Construction method for super-large special-shaped section |
Also Published As
Publication number | Publication date |
---|---|
JP2804349B2 (en) | 1998-09-24 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPH0470495A (en) | No-blasting construction method in hard rock tunnel of large section | |
JP2614396B2 (en) | Shaft excavation method by pre-boring | |
JP3465202B2 (en) | Blasting method | |
WO1991016524A1 (en) | Method of excavating tunnel | |
JPH0428078B2 (en) | ||
US3266845A (en) | Core and blast tunneling method | |
JP2940402B2 (en) | Rock tunnel excavation method using arch machine | |
JP4318112B2 (en) | Tunnel excavator | |
JPH07229386A (en) | Excavation method for tunnel of flat and large cross section | |
JP4780473B2 (en) | Tunnel construction method | |
CN221362439U (en) | Cutter head cutter device for shield cutting underground pile foundation model test | |
JPS6229597B2 (en) | ||
KR102656665B1 (en) | Vibration-free excavation construction method | |
JPH08165895A (en) | Excavating method for large-cross section tunnel | |
JPH0835389A (en) | Excavating method of underground construction | |
JPH02217589A (en) | Removal of underground obstruction in excavating work | |
JPH05179886A (en) | Tunnel branching method by shield excavator and cutter plate for excavator | |
JP3028037B2 (en) | Underground outer shell structure and tunnel excavator | |
JPH0344612B2 (en) | ||
JPH01247692A (en) | Drilling of rock bed | |
JPH08199958A (en) | Shaft excavation method and excavating machine thereof | |
KR20220122188A (en) | Tunnel boring machine | |
JPH08319796A (en) | Obstruction cutting device for shield machine | |
JP4482222B2 (en) | Tunnel boring machine | |
JPH0696953B2 (en) | Shield machine |