A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
MARITIME DISPOSAL PLACE RECLAMATION METHOD
PROBLEM TO BE SOLVED: To achieve stabilization in an early stage of a reclamation ground of a maritime disposal place, and suppress maintenance cost.SOLUTION: A maritime disposal place reclamation method of the invention is configured to adjust pH of retention water 12 in a maritime disposal place 10 in a state in which reclamation by waste matters 14 of the maritime disposal place 10 proceeds, namely, if the waste matters 14 containing burned ash and fly ash are put into the retention water 12, hydroxide ion is generated from components contained in ash, so that the pH of the retention water 12 rises. Then, if the pH of the retention water 12 is adjusted and the pH rise is suppressed since the stage in which reclamation by the waste matters 14 proceeds, compared with a case in which pH is not adjusted since the reclamation stage of the waste matters 14, it is possible to lower the pH of the retention water 12 remaining as gap water in a reclamation ground after completion of reclamation. Therefore, it is also possible to lower pH of exudation water exuding after completion of reclamation, so that a period until the reclamation ground is stabilized can be shortened, and maintenance cost of the reclamation ground can be suppressed.SELECTED DRAWING: Figure 1
【課題】海面処分場の埋立地盤の早期安定化を図り、維持管理費用を抑制する。【解決手段】本海面処分場の埋立方法は、海面処分場１０の廃棄物１４による埋立が進行している段階で、海面処分場１０内の保有水１２のｐＨを調整する。すなわち、焼却灰や飛灰等を含む廃棄物１４を保有水１２へ投入すると、灰に含まれる成分から水酸化物イオンが生成されるため、保有水１２のｐＨが上昇する。そこで、廃棄物１４による埋立が進行している段階から、保有水１２のｐＨを調整して、ｐＨの上昇を抑制すると、廃棄物１４の埋立段階からｐＨの調整を行わない場合と比較して、埋立完了後に埋立地盤中に間隙水として残存する保有水１２のｐＨを低下することができる。これにより、埋立完了後に浸出する浸出水のｐＨも低下することができるため、埋立地盤が安定化するまでの期間を短縮することができ、埋立地盤の維持管理費用を抑制することが可能となる。【選択図】図１
MARITIME DISPOSAL PLACE RECLAMATION METHOD
PROBLEM TO BE SOLVED: To achieve stabilization in an early stage of a reclamation ground of a maritime disposal place, and suppress maintenance cost.SOLUTION: A maritime disposal place reclamation method of the invention is configured to adjust pH of retention water 12 in a maritime disposal place 10 in a state in which reclamation by waste matters 14 of the maritime disposal place 10 proceeds, namely, if the waste matters 14 containing burned ash and fly ash are put into the retention water 12, hydroxide ion is generated from components contained in ash, so that the pH of the retention water 12 rises. Then, if the pH of the retention water 12 is adjusted and the pH rise is suppressed since the stage in which reclamation by the waste matters 14 proceeds, compared with a case in which pH is not adjusted since the reclamation stage of the waste matters 14, it is possible to lower the pH of the retention water 12 remaining as gap water in a reclamation ground after completion of reclamation. Therefore, it is also possible to lower pH of exudation water exuding after completion of reclamation, so that a period until the reclamation ground is stabilized can be shortened, and maintenance cost of the reclamation ground can be suppressed.SELECTED DRAWING: Figure 1
【課題】海面処分場の埋立地盤の早期安定化を図り、維持管理費用を抑制する。【解決手段】本海面処分場の埋立方法は、海面処分場１０の廃棄物１４による埋立が進行している段階で、海面処分場１０内の保有水１２のｐＨを調整する。すなわち、焼却灰や飛灰等を含む廃棄物１４を保有水１２へ投入すると、灰に含まれる成分から水酸化物イオンが生成されるため、保有水１２のｐＨが上昇する。そこで、廃棄物１４による埋立が進行している段階から、保有水１２のｐＨを調整して、ｐＨの上昇を抑制すると、廃棄物１４の埋立段階からｐＨの調整を行わない場合と比較して、埋立完了後に埋立地盤中に間隙水として残存する保有水１２のｐＨを低下することができる。これにより、埋立完了後に浸出する浸出水のｐＨも低下することができるため、埋立地盤が安定化するまでの期間を短縮することができ、埋立地盤の維持管理費用を抑制することが可能となる。【選択図】図１
MARITIME DISPOSAL PLACE RECLAMATION METHOD
海面処分場の埋立方法
YAMAZAKI TOSHIHIRO (author) / TSURUGASAKI KAZUHIRO (author)
2016-12-08
Patent
Electronic Resource
Japanese
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