JP4885605B2 - 低強度人工軽量ろ過材を用いた耐震構造のマンホール及び誘導経路部材 - Google Patents
低強度人工軽量ろ過材を用いた耐震構造のマンホール及び誘導経路部材 Download PDFInfo
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- JP4885605B2 JP4885605B2 JP2006122615A JP2006122615A JP4885605B2 JP 4885605 B2 JP4885605 B2 JP 4885605B2 JP 2006122615 A JP2006122615 A JP 2006122615A JP 2006122615 A JP2006122615 A JP 2006122615A JP 4885605 B2 JP4885605 B2 JP 4885605B2
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- manhole
- opening
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Description
地中に埋設され、一端に地上への開口部を有するマンホール本体と、
そのマンホール本体の他端側の周壁に内外に貫通させた貫通孔に接続され、マンホール本体の内外の汚水流通を行うための排水管と、
マンホール本体の内側に設けられ、他端側にマンホール本体外への通じる第一開口部と、一端側にマンホール本体内へ通じる第二開口部とを有し、マンホール本体外の液状化に伴う過剰間隙水をマンホール内へ導入する誘導経路部と、
を備え、
第一開口部には、排水管の外周面を取り囲む環状孔が形成され、排水管が環状孔にシール部を介して、マンホール本体に取り付けられたマンホール、
が提供される。
Claims (7)
- 地中に埋設され、一端に地上への開口部を有するマンホール本体と、
そのマンホール本体の他端側の周壁に内外に貫通させた貫通孔に接続され、前記マンホール本体の内外の汚水流通を行うための排水管と、
前記マンホール本体の内側に設けられ、前記他端側に前記マンホール本体外への通じる第一開口部と、前記一端側に前記マンホール本体内へ通じる第二開口部とを有し、前記マンホール本体外の液状化に伴う過剰間隙水を前記マンホール内へ導入する誘導経路部と、を備え、
前記第一開口部には、前記排水管の外周面を取り囲む環状孔が形成され、前記排水管が前記環状孔にシール部を介して、前記マンホール本体に取り付けられたマンホール。 - 前記第二開口部は、地下水位よりも鉛直方向において地上側に設けられた請求項1に記載のマンホール。
- 前記誘導経路部は、前記マンホール本体の前記周壁部の内周面に沿って設けられた請求項1又は2に記載のマンホール。
- 前記第一開口部に、前記誘導経路部に流通する前記過剰間隙水を濾過する濾過部材が備えられた請求項1〜3のいずれか1項に記載のマンホール。
- 前記濾過部材は、前記排水管の外周を取り囲む形で前記第一開口部へ備えられた請求項4に記載のマンホール。
- 前記誘導経路部内に前記濾過部材を固定する網状固定部材が備えられた請求項4又は5に記載のマンホール。
- 前記濾過部材は、点加重が0.2kN以上0.6kN以下の範囲内で損傷する低強度濾過部材によって構成された請求項4〜6のいずれか1項に記載のマンホール。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006122615A JP4885605B2 (ja) | 2006-04-26 | 2006-04-26 | 低強度人工軽量ろ過材を用いた耐震構造のマンホール及び誘導経路部材 |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006122615A JP4885605B2 (ja) | 2006-04-26 | 2006-04-26 | 低強度人工軽量ろ過材を用いた耐震構造のマンホール及び誘導経路部材 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2007291781A JP2007291781A (ja) | 2007-11-08 |
| JP4885605B2 true JP4885605B2 (ja) | 2012-02-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2006122615A Active JP4885605B2 (ja) | 2006-04-26 | 2006-04-26 | 低強度人工軽量ろ過材を用いた耐震構造のマンホール及び誘導経路部材 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4885605B2 (ja) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08165671A (ja) * | 1994-12-14 | 1996-06-25 | Fujita Corp | マンホールの浮き上がり防止築造構造 |
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- 2006-04-26 JP JP2006122615A patent/JP4885605B2/ja active Active
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| JP2007291781A (ja) | 2007-11-08 |
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