JPS5942796B2 - Tunnel NATM method - Google Patents
Tunnel NATM methodInfo
- Publication number
- JPS5942796B2 JPS5942796B2 JP54083819A JP8381979A JPS5942796B2 JP S5942796 B2 JPS5942796 B2 JP S5942796B2 JP 54083819 A JP54083819 A JP 54083819A JP 8381979 A JP8381979 A JP 8381979A JP S5942796 B2 JPS5942796 B2 JP S5942796B2
- Authority
- JP
- Japan
- Prior art keywords
- hole
- tunnel
- rock
- drilling
- shoring
- 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.)
- Expired
Links
- 238000000034 method Methods 0.000 title description 2
- 239000011435 rock Substances 0.000 claims description 8
- 238000010276 construction Methods 0.000 claims description 7
- 238000005553 drilling Methods 0.000 claims description 7
- 239000011378 shotcrete Substances 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 238000009412 basement excavation Methods 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000005422 blasting Methods 0.000 description 4
- 230000002265 prevention Effects 0.000 description 3
- 238000007600 charging Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000004567 concrete Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Landscapes
- Rock Bolts (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
- Lining And Supports For Tunnels (AREA)
Description
【発明の詳細な説明】
従来のトンネルＮＡＴＭ施工ではさく孔位置の測量・さ
く孔、装薬・発破・掘削土砂搬出・支保工建て込み・鉄
網張り・吹付コンクリート・ロックボルト打込み等を１
サイクルとして作業を進めるが発破より吹付コンクリー
トまでは落盤などの危険作業であるが、本発明ではさく
孔位置の測量及び鉄網張り等の作業が省略でき、かつ、
落盤防止用矢をさし込んである故に作業が安全になりま
す。[Detailed Description of the Invention] Conventional tunnel NATM construction involves surveying the drilling position, drilling, charging, blasting, transporting excavated earth and sand, erecting shoring, laying iron mesh, spraying concrete, driving rock bolts, etc. in one step.
The work is carried out as a cycle, but the process from blasting to shotcrete is dangerous work such as cave-ins, but with the present invention, work such as surveying the drilling position and laying iron netting can be omitted, and
Work is safer because arrows are inserted to prevent cave-ins.
つぎに本発明工法の実施例を図面に基づいて説明すれば
、第１図１の鋼製支保工に２の穴を開けた鋼製支保工を
第２図の如く建て込み４の掘削面より鋼製支保工２の穴
より削岩機ののみを差し込み６のさく孔をし、７の掘削
予定線まで掘削するように装薬し発破を掛けた後、鋼製
支保工２の穴と６の先端部分に５の落盤防止用矢をさし
込んで８の吹付コンクリートを３の掘削面に施工し発破
による掘削土砂を盤出し、９のロックボルトの打込みを
行うまでを１サイクルとして作業を進める工法でありま
す。Next, an embodiment of the construction method of the present invention will be explained based on the drawings.The steel shoring shown in Fig. 1 is constructed by drilling holes 2 in the steel shoring shown in Fig. 1. Insert the chisel of a rock drill into the hole in steel shoring 2 and drill hole 6. After charging and blasting so as to drill to the planned excavation line in 7, One cycle of work consists of inserting the rock fall prevention arrow (5) into the tip of the rock, applying shotcrete (8) on the excavation surface (3), ejecting the excavated soil by blasting, and driving the rock bolts (9). This is a construction method that will continue.
図はこの発明のトンネルＮＡＴＭ工法実施例を示すもの
で、第１図鋼層支保工、第２図トンネルＮＡＴＭ工法の
施工断面図を示す。
１・・・鋼製支保工、２・・・鋼製支保工に開けた穴、
３・・・トンネル掘削断面、４・・・掘削面、５・・・
落盤防止用矢、６・・・落盤防止用矢のさし込み穴、７
・・・掘削予定線、８・・・吹付コンクリート、９・・
・ロックボルト。The figures show an embodiment of the tunnel NATM construction method of the present invention, and FIG. 1 shows a steel layer support, and FIG. 2 shows a construction sectional view of the tunnel NATM construction method. 1... Steel shoring, 2... Hole drilled in the steel shoring,
3... Tunnel excavation cross section, 4... Excavation surface, 5...
Arrow for cave-in prevention, 6... Hole for inserting arrow for cave-in prevention, 7
...Excavation schedule line, 8...Shotcrete, 9...
・Rock bolt.
Claims (1)
の穴よりさく岩用のみをさし込み掘削予定線より余分に
長い穴を岩盤に開は鋼製支保工の穴と掘削予定線より余
分に開けた穴との間に落盤防止用矢をさし込んで掘削面
に吹付コンクリート及び、ロックボルトを施工するトン
ネル工法。1 Drill a hole in the LA shoring to indicate the drilling position. Insert a rock drilling chisel into this hole. Open a hole in the bedrock that is longer than the planned drilling line. A tunnel construction method that involves inserting arrows to prevent cave-ins between the extra holes and installing shotcrete and rock bolts on the excavated surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP54083819A JPS5942796B2 (en) | 1979-07-02 | 1979-07-02 | Tunnel NATM method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP54083819A JPS5942796B2 (en) | 1979-07-02 | 1979-07-02 | Tunnel NATM method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS569595A JPS569595A (en) | 1981-01-31 |
| JPS5942796B2 true JPS5942796B2 (en) | 1984-10-17 |
Family
ID=13813287
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP54083819A Expired JPS5942796B2 (en) | 1979-07-02 | 1979-07-02 | Tunnel NATM method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5942796B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104074529B (en) * | 2013-08-02 | 2016-09-07 | 河北工程大学 | A kind of cave continuous bivalve, lane, deep reinforcement means |
| CN103982197B (en) * | 2014-05-28 | 2016-06-08 | 河北工程大学 | A kind of deep tunnel discontinuous bivalve reinforcement means |
-
1979
- 1979-07-02 JP JP54083819A patent/JPS5942796B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS569595A (en) | 1981-01-31 |
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