JP2005146541A - 小口径管掘進装置及びそれを用いた小口径管路の構築方法 - Google Patents
小口径管掘進装置及びそれを用いた小口径管路の構築方法 Download PDFInfo
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- JP2005146541A JP2005146541A JP2003381432A JP2003381432A JP2005146541A JP 2005146541 A JP2005146541 A JP 2005146541A JP 2003381432 A JP2003381432 A JP 2003381432A JP 2003381432 A JP2003381432 A JP 2003381432A JP 2005146541 A JP2005146541 A JP 2005146541A
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Abstract
【解決手段】 泥水加圧式の二工程推進工法による小口径管路構築に用いる掘進装置において、駆動軸7を介して掘進機1のカッターへ駆動力を伝達する駆動装置9を発進立坑Taに設置し、前記駆動軸7は発進立坑Taから掘進機1に渡って推進距離の延長に従い順次継ぎ足して接続される単軸とし、同駆動軸7で駆動されるカッターが中央部を回転軸部として縦横交互に複数配設したそれぞれが一文字状の回転カッター3で、各回転カッター3を互いが干渉しないようにそれぞれ逆回転させるようにした。
【選択図】図2
Description
1) 泥水加圧式の二工程推進工法による小口径管路構築に用いる掘進装置において、駆動軸を介して掘進機のカッターへ駆動力を伝達する駆動装置を発進基地に設置し、前記駆動軸は発進基地から掘進機に渡って推進距離の延長に従い順次継ぎ足して接続される単軸とし、同駆動軸で駆動されるカッターが中央部を回転軸部として縦横交互に複数配設したそれぞれが一文字状の回転カッターで、各回転カッターを互いが干渉しないようにそれぞれ逆回転させるようにしたことを特徴とする小口径管掘進装置
2) 掘進機に後続する推進用ガイド管が、上下又は左右に泥水を送排するための泥水空間をそれぞれ形成し、同各泥水空間の間に駆動軸を配設する独立した駆動軸空間を形成した構造である前記1)記載の小口径管掘進装置
3) 推進用ガイド管が、泥水を送排する送泥管及び排泥管を各泥管間に駆動軸空間が形成されるように一体的に並設した断面楕円状で、各泥管に切羽圧力及び送排泥量を制御するバルブをそれぞれ設け、推進用ガイド管を直接送排泥路として利用しながら掘進できるようにした前記2)記載の小口径管掘進装置
4) 前記1)〜3)いずれか記載の小口径管掘進装置で地盤を掘削しながら推進用ガイド管を推進させて発進基地から到達部に渡って配置し、発進基地で最後部の推進用ガイド管の後端に管路となるべき埋設管を接続し、到達部で最前部の推進用ガイド管を引き抜きながら埋設管を引抜跡へ挿入し、推進用ガイド管の引き抜き及び埋設管の継ぎ足しを繰り返して地中に管路を構築する工法であって、前記推進用ガイド管と埋設管との接続部に固結充填材の注入口を設け、同注入口から固結充填材を地山と埋設管との間の空隙に充填する工程を埋設管の挿入と並行して連続的に行い、地盤の緩みを防止しながら地中に埋設管を埋設できるようにしたことを特徴とする小口径管路の構築工法
にある。
2 外殻
3 回転カッター
3a 掘削刃
3b 回転軸
3c カッターギヤ
3d センターギヤ
4 隔壁板
4a 送泥口
4b 排泥口
5 推進用ガイド管
5a 送泥路
5b 排泥路
5c 駆動軸空間
5d エアホース
5e 油圧ホース
5f 測量用ターゲット
6 切羽圧力制御バルブ
7 駆動軸
7a 自在軸継手
7b ガイドギヤ
7c 駆動チェーン
8 修正装置
9 駆動装置
10 油圧ジャッキ
11 押輪
12 残土運搬車
13 分離処理機
13a 送泥ポンプ
13b 排泥ポンプ
14 撹拌機
14a 注入ポンプ
14b 注入ホース
15,16 固定板
17 誘導ワイヤー
18 埋設管
18a 注入口
18b サドル
G 地山
M 固結充填材
Ta 発進立坑
Tb 到達立坑
Claims (4)
- 泥水加圧式の二工程推進工法による小口径管路構築に用いる掘進装置において、駆動軸を介して掘進機のカッターへ駆動力を伝達する駆動装置を発進基地に設置し、前記駆動軸は発進基地から掘進機に渡って推進距離の延長に従い順次継ぎ足して接続される単軸とし、同駆動軸で駆動されるカッターが中央部を回転軸部として縦横交互に複数配設したそれぞれが一文字状の回転カッターで、各回転カッターを互いが干渉しないようにそれぞれ逆回転させるようにしたことを特徴とする小口径管掘進装置。
- 掘進機に後続する推進用ガイド管が、上下又は左右に泥水を送排するための泥水空間をそれぞれ形成し、同各泥水空間の間に駆動軸を配設する独立した駆動軸空間を形成した構造である請求項1記載の小口径管掘進装置。
- 推進用ガイド管が、泥水を送排する送泥管及び排泥管を各泥管間に駆動軸空間が形成されるように一体的に並設した断面楕円状で、各泥管に切羽圧力及び送排泥量を制御するバルブをそれぞれ設け、推進用ガイド管を直接送排泥路として利用しながら掘進できるようにした請求項2記載の小口径管掘進装置。
- 請求項1〜3いずれか記載の小口径管掘進装置で地盤を掘削しながら推進用ガイド管を推進させて発進基地から到達部に渡って配置し、発進基地で最後部の推進用ガイド管の後端に管路となるべき埋設管を接続し、到達部で最前部の推進用ガイド管を引き抜きながら埋設管を引抜跡へ挿入し、推進用ガイド管の引き抜き及び埋設管の継ぎ足しを繰り返して地中に管路を構築する工法であって、前記推進用ガイド管と埋設管との接続部に固結充填材の注入口を設け、同注入口から固結充填材を地山と埋設管との間の空隙に充填する工程を埋設管の挿入と並行して連続的に行い、地盤の緩みを防止しながら地中に埋設管を埋設できるようにしたことを特徴とする小口径管路の構築工法。
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008038530A (ja) * | 2006-08-09 | 2008-02-21 | Data Tou:Kk | パイプルーフ工法およびパイプルーフ工法用鋼管 |
CN102486092A (zh) * | 2010-12-06 | 2012-06-06 | 上海市机械施工有限公司 | 一种在深覆土地层中的矩形通道施工的顶管机进洞施工方法 |
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JP2008038530A (ja) * | 2006-08-09 | 2008-02-21 | Data Tou:Kk | パイプルーフ工法およびパイプルーフ工法用鋼管 |
JP4647562B2 (ja) * | 2006-08-09 | 2011-03-09 | 株式会社データ・トゥ | パイプルーフ工法 |
CN102486092A (zh) * | 2010-12-06 | 2012-06-06 | 上海市机械施工有限公司 | 一种在深覆土地层中的矩形通道施工的顶管机进洞施工方法 |
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