JP2020054943A - 汚染土壌層の掘削工法 - Google Patents
汚染土壌層の掘削工法 Download PDFInfo
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- JP2020054943A JP2020054943A JP2018186626A JP2018186626A JP2020054943A JP 2020054943 A JP2020054943 A JP 2020054943A JP 2018186626 A JP2018186626 A JP 2018186626A JP 2018186626 A JP2018186626 A JP 2018186626A JP 2020054943 A JP2020054943 A JP 2020054943A
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- 238000000034 method Methods 0.000 title claims abstract description 97
- 239000002689 soil Substances 0.000 title claims abstract description 87
- 238000009412 basement excavation Methods 0.000 title claims abstract description 72
- 238000005202 decontamination Methods 0.000 claims abstract description 22
- 238000005520 cutting process Methods 0.000 claims abstract description 21
- 230000003588 decontaminative effect Effects 0.000 claims abstract description 21
- 238000010276 construction Methods 0.000 claims abstract description 20
- 230000001105 regulatory effect Effects 0.000 claims abstract description 20
- 238000003756 stirring Methods 0.000 claims abstract description 6
- 230000008569 process Effects 0.000 claims description 38
- 229910052792 caesium Inorganic materials 0.000 claims description 17
- TVFDJXOCXUVLDH-UHFFFAOYSA-N caesium atom Chemical compound [Cs] TVFDJXOCXUVLDH-UHFFFAOYSA-N 0.000 claims description 17
- 230000032258 transport Effects 0.000 claims description 14
- 238000012790 confirmation Methods 0.000 claims description 7
- 235000008331 Pinus X rigitaeda Nutrition 0.000 claims description 4
- 235000011613 Pinus brutia Nutrition 0.000 claims description 4
- 241000018646 Pinus brutia Species 0.000 claims description 4
- 239000011347 resin Substances 0.000 claims description 4
- 229920005989 resin Polymers 0.000 claims description 4
- 238000005266 casting Methods 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 239000002023 wood Substances 0.000 claims 1
- 239000012857 radioactive material Substances 0.000 abstract description 7
- 238000009434 installation Methods 0.000 abstract description 4
- 238000011109 contamination Methods 0.000 abstract description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 10
- 238000003860 storage Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 229910052742 iron Inorganic materials 0.000 description 5
- 230000005484 gravity Effects 0.000 description 4
- 239000000941 radioactive substance Substances 0.000 description 4
- 241000196324 Embryophyta Species 0.000 description 3
- 238000005452 bending Methods 0.000 description 3
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- 239000000356 contaminant Substances 0.000 description 3
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- 238000005259 measurement Methods 0.000 description 3
- 239000012466 permeate Substances 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 230000002285 radioactive effect Effects 0.000 description 3
- 238000002054 transplantation Methods 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 238000013019 agitation Methods 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000018044 dehydration Effects 0.000 description 2
- 238000006297 dehydration reaction Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 230000002262 irrigation Effects 0.000 description 2
- 238000003973 irrigation Methods 0.000 description 2
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- 238000003825 pressing Methods 0.000 description 2
- 239000013049 sediment Substances 0.000 description 2
- 241001247986 Calotropis procera Species 0.000 description 1
- 241000218631 Coniferophyta Species 0.000 description 1
- 239000003463 adsorbent Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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- 238000011049 filling Methods 0.000 description 1
- 238000009408 flooring Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
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- 238000002156 mixing Methods 0.000 description 1
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C9/00—Special pavings; Pavings for special parts of roads or airfields
- E01C9/08—Temporary pavings
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
- E02F3/90—Component parts, e.g. arrangement or adaptation of pumps
- E02F3/92—Digging elements, e.g. suction heads
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/20—Fertilizers of biological origin, e.g. guano or fertilizers made from animal corpses
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- General Engineering & Computer Science (AREA)
- Agronomy & Crop Science (AREA)
- Architecture (AREA)
- Environmental & Geological Engineering (AREA)
- Soil Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Processing Of Solid Wastes (AREA)
- Road Paving Structures (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
- Fertilizers (AREA)
Abstract
Description
係る調整池等は、泥濘んだ軟らかい土壌であり、また、水分を多く含んでいることからバックホー等の装軌車両を持ち込んで土壌を掘削すると、無限軌道により土壌を混ぜ込んでしまうという事態が生じる。また、鉄板等の敷板を敷設するに先立ち、多数の杭を打設することとなるが、除染後に係る杭を撤去しようとして引き抜くと、池の底を抜いてしまい、調整池等の機能を発揮しなくなるという問題がある。
本発明に係る汚染土壌層の掘削工法1は、装軌車両10の無限軌道11によって土壌Tを攪拌せずに、除染作業を行う方法であって、支持杭打設工程Aと、敷板敷設工程Bと、掘削工程Eと、敷板30の撤去工程Fと、敷板撤去後の掘削工程Gと、杭頭切断工程Jと、から構成される、汚染土壌層を掘削する工法である。
10 装軌車両
11 無限軌道
20 支持杭
21 杭頭
30 敷板
40 搬送路
41 敷設開始位置
42 撤去開始位置
43 荷役ステージ
44 水処理機械ヤード
50 敷設方向
60 撤去方向
70 置換え敷設方向
80 置換え撤去方向
90 撤去方向
A 支持杭打設工程
B 敷板敷設工程
C 掘削パスの確認及び施工前掘削深さの確認工程
D 粗除根工程
E 掘削工程
F 撤去工程
G 敷板撤去後の掘削工程
H 施工後の掘削深さの確認工程
I 簡易セシウム濃度測定工程
J 杭頭切断工程
T 土壌
P 調整池、溜め池
Claims (6)
- 装軌車両(10)の無限軌道(11)によって土壌(T)を攪拌せずに、除染作業を行う方法であって
支持杭(20)を打設する支持杭打設工程(A)と、
敷板(30)を敷設する敷板敷設工程(B)と、
掘削工程(E)と、
敷板(30)の撤去工程(F)と、
敷板撤去後の掘削工程(G)と、
杭頭切断工程(J)と、
から構成され、
前記敷板敷設工程(B)は、敷設された前記敷板(30)の上を前記装軌車両(10)が次の敷板(30)を搬送して連設施工するという一連の工程と前記支持杭打設工程(A)を繰り返すことで前記装軌車両(10)の搬送路(40)を施工するものであり、
前記掘削工程(E)は、前記敷板(30)を撤去しながら掘削するものであり、
前記杭頭切断工程(J)は、掘削し終わった場所の支持杭(20)は掘削面に合わせて杭頭(21)を切断処理するものであることを特徴とする汚染土壌層の掘削工法(1)。 - 前記支持杭打設工程(A)及び前記敷板敷設工程(B)の後であって、前記掘削工程(E)の前に、
掘削パスの確認及び施工前掘削深さの確認工程(C)と、
粗除根工程(D)を有し、
前記敷板(30)の撤去工程(F)と、
前記敷板撤去後の掘削工程(G)の後であって前記杭頭切断工程(J)の前に、
施工後の掘削深さの確認工程(H)と、
掘削後の底泥の簡易セシウム濃度測定工程(I)を有して構成されることを特徴とする請求項1に記載の汚染土壌層の掘削工法(1)。 - 前記撤去工程(F)において、前記搬送路(40)を敷設方向と略平行に置換え敷設して移設することを特徴とする請求項1又は請求項2に記載の汚染土壌層の掘削工法(1)。
- 前記支持杭(20)に松材を用い、前記杭頭切断工程(J)において、掘削後の地面より露出した前記杭頭(21)を切断し、その余の支持杭(20)を土壌(T)内に残存させたままにして、調整池(P)の底抜きを防止することを特徴とする請求項1又は請求項3に記載の汚染土壌層の掘削工法(1)。
- 前記敷板(30)が金属製、または樹脂製であることを特徴とする請求項1から請求項4の何れかに記載の汚染土壌層の掘削工法(1)。
- 前記掘削工程(E)及び前記敷板撤去後の掘削工程(G)において行う掘削を、バックホー又はバキュームで行うことを特徴とする請求項1から請求項5の何れかに記載の汚染土壌層の掘削工法(1)。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2018186626A JP6439072B1 (ja) | 2018-10-01 | 2018-10-01 | 汚染土壌層の掘削工法 |
JP2019511798A JP6615410B1 (ja) | 2018-10-01 | 2019-02-25 | 環境対策を含めた溜め池総合除染工法 |
PCT/JP2019/006959 WO2019198354A1 (ja) | 2018-04-12 | 2019-02-25 | 環境対策を含めた溜め池総合除染工法 |
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JP2018186626A JP6439072B1 (ja) | 2018-10-01 | 2018-10-01 | 汚染土壌層の掘削工法 |
Publications (2)
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JP6439072B1 JP6439072B1 (ja) | 2018-12-19 |
JP2020054943A true JP2020054943A (ja) | 2020-04-09 |
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JP2018186626A Active JP6439072B1 (ja) | 2018-04-12 | 2018-10-01 | 汚染土壌層の掘削工法 |
JP2019511798A Expired - Fee Related JP6615410B1 (ja) | 2018-10-01 | 2019-02-25 | 環境対策を含めた溜め池総合除染工法 |
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Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS55152204A (en) * | 1979-05-14 | 1980-11-27 | Atsushi Matsui | Mat for toppshaped pile |
JPH0710035U (ja) * | 1993-07-14 | 1995-02-10 | 株式会社小松製作所 | ブレーカ型杭頭処理機 |
JP2002186314A (ja) * | 2000-12-18 | 2002-07-02 | Kakuta Kogyo Kk | 表土移植工法及び表土剥き取り機構 |
JP2010159579A (ja) * | 2009-01-08 | 2010-07-22 | Nippon Sharyo Seizo Kaisha Ltd | 作業機械 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60197299A (ja) * | 1984-03-16 | 1985-10-05 | Sanyo Chem Ind Ltd | 脱水用助剤および脱水法 |
JP2872503B2 (ja) * | 1992-11-02 | 1999-03-17 | 宇部興産株式会社 | 浚渫装置 |
JPH06280283A (ja) * | 1993-03-30 | 1994-10-04 | Eniwa Kensetsu Kk | 浚渫バケット |
JPH09184163A (ja) * | 1995-12-28 | 1997-07-15 | Hayamizugumi:Kk | 浚渫装置 |
JP3748000B2 (ja) * | 1998-12-07 | 2006-02-22 | 同和鉱業株式会社 | 石油系油汚染土壌の修復方法 |
JP2004298828A (ja) * | 2003-04-01 | 2004-10-28 | Meidensha Corp | 循環資源資材料とその製造方法 |
NO323455B1 (no) * | 2005-10-31 | 2007-05-14 | Agronova As | Fremgangsmate for fremstilling av hygienisert organisk slam |
RU2458027C1 (ru) * | 2011-01-24 | 2012-08-10 | Закрытое Акционерное Общество "Твин Трейдинг Компани" | Способ производства гранулированных органо-минеральных удобрений из органических отходов и устройство для его осуществления |
JP6549372B2 (ja) * | 2014-12-16 | 2019-07-24 | 吉田 英夫 | トリチウム水による汚染土壌および汚染水の除染方法および除染システム |
-
2018
- 2018-10-01 JP JP2018186626A patent/JP6439072B1/ja active Active
-
2019
- 2019-02-25 JP JP2019511798A patent/JP6615410B1/ja not_active Expired - Fee Related
- 2019-02-25 WO PCT/JP2019/006959 patent/WO2019198354A1/ja active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS55152204A (en) * | 1979-05-14 | 1980-11-27 | Atsushi Matsui | Mat for toppshaped pile |
JPH0710035U (ja) * | 1993-07-14 | 1995-02-10 | 株式会社小松製作所 | ブレーカ型杭頭処理機 |
JP2002186314A (ja) * | 2000-12-18 | 2002-07-02 | Kakuta Kogyo Kk | 表土移植工法及び表土剥き取り機構 |
JP2010159579A (ja) * | 2009-01-08 | 2010-07-22 | Nippon Sharyo Seizo Kaisha Ltd | 作業機械 |
Also Published As
Publication number | Publication date |
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JP6615410B1 (ja) | 2019-12-04 |
WO2019198354A1 (ja) | 2019-10-17 |
JPWO2019198354A1 (ja) | 2020-04-30 |
JP6439072B1 (ja) | 2018-12-19 |
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