JPH0222172B2 - - Google Patents
Info
- Publication number
- JPH0222172B2 JPH0222172B2 JP56113041A JP11304181A JPH0222172B2 JP H0222172 B2 JPH0222172 B2 JP H0222172B2 JP 56113041 A JP56113041 A JP 56113041A JP 11304181 A JP11304181 A JP 11304181A JP H0222172 B2 JPH0222172 B2 JP H0222172B2
- Authority
- JP
- Japan
- Prior art keywords
- detection mechanism
- manhole
- lid
- detects
- gas
- 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 - Lifetime
Links
- 230000007246 mechanism Effects 0.000 claims description 45
- 238000001514 detection method Methods 0.000 claims description 34
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 239000007789 gas Substances 0.000 description 11
- 238000004891 communication Methods 0.000 description 7
- 230000005856 abnormality Effects 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 3
- 206010021143 Hypoxia Diseases 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003673 groundwater Substances 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 239000002341 toxic gas Substances 0.000 description 2
- 235000014676 Phragmites communis Nutrition 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000027734 detection of oxygen Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000008235 industrial water Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000007784 solid electrolyte Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/12—Manhole shafts; Other inspection or access chambers; Accessories therefor
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Laying Of Electric Cables Or Lines Outside (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56113041A JPS5817934A (ja) | 1981-07-21 | 1981-07-21 | マンホール装置 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56113041A JPS5817934A (ja) | 1981-07-21 | 1981-07-21 | マンホール装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5817934A JPS5817934A (ja) | 1983-02-02 |
| JPH0222172B2 true JPH0222172B2 (enrdf_load_html_response) | 1990-05-17 |
Family
ID=14601980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56113041A Granted JPS5817934A (ja) | 1981-07-21 | 1981-07-21 | マンホール装置 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5817934A (enrdf_load_html_response) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62114543A (ja) * | 1985-11-15 | 1987-05-26 | 工業技術院長 | 光化学治療診断用色素標準蛍光光源装置 |
| JP2003096805A (ja) * | 2001-09-19 | 2003-04-03 | Nippon Chutetsukan Kk | マンホール内圧測定装置 |
| US7002481B1 (en) * | 2002-03-05 | 2006-02-21 | Aeromesh Corporation | Monitoring system and method |
| KR100931015B1 (ko) | 2008-10-28 | 2009-12-10 | 주식회사 한일엔지니어링 | 터널 내부의 안전진단장비 |
| JP5414557B2 (ja) * | 2010-01-28 | 2014-02-12 | 日本電信電話株式会社 | 通信設備情報収集システム及び通信設備情報収集方法 |
-
1981
- 1981-07-21 JP JP56113041A patent/JPS5817934A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5817934A (ja) | 1983-02-02 |
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