JP2662626B2 - Landfill method - Google Patents
Landfill methodInfo
- Publication number
- JP2662626B2 JP2662626B2 JP31123388A JP31123388A JP2662626B2 JP 2662626 B2 JP2662626 B2 JP 2662626B2 JP 31123388 A JP31123388 A JP 31123388A JP 31123388 A JP31123388 A JP 31123388A JP 2662626 B2 JP2662626 B2 JP 2662626B2
- Authority
- JP
- Japan
- Prior art keywords
- landfill
- bags
- soil
- consolidation
- cost
- 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
Description
【発明の詳細な説明】 「産業上の利用分野」 この発明は、ウォーターフロント等の水域における埋
立工法に関する。The present invention relates to a landfill method in a water area such as a waterfront.
「従来技術とその課題」 一般に、臨海部などのウォーターフロントは、立地条
件がよいことから、各種の構造物を構築することが望ま
れているが、このようなウォーターフロントはそのほと
んどが埋立地であるため、軟弱層が厚く、軟弱層上に設
置される構造物、舗装などに有害な沈下あるいは破壊が
生じる恐れがある。"Prior art and its problems" Generally, it is desirable to construct various structures on the waterfront such as the seafront because of good location conditions. However, most of such waterfronts are in landfills. Therefore, the soft layer is thick, and there is a possibility that harmful settlement or destruction may occur on structures, pavements, and the like installed on the soft layer.
このため従来より埋立地の構築予定地に前もって事前
盛土を行い、圧密による基礎地盤の支持力増加を計った
後、盛土を除去してから、その上に構造物を構築するよ
うにしたもの（いわゆる載荷重工法）がある。しかしな
がら、このような工法においては、載荷重のための客土
費用、敷ならし工費、撤去のための残土処分費用等が要
り、また、圧密期間が長期にわたる（２〜３箇月程度）
ため、施工コストが高くなりがちであった。For this reason, in the past, pre-filling was performed in advance at the site where the landfill was to be constructed, and after increasing the bearing capacity of the foundation ground due to consolidation, the embankment was removed, and then the structure was built on it ( So-called loading method). However, such a construction method requires a soil cost for loading, a laying work cost, a disposal cost of remaining soil for removal, and the like, and a long consolidation period (about two to three months).
Therefore, the construction cost tends to be high.
この発明は、上記事情に鑑みてなされたもので、水域
に埋立地を造成する際に、その圧密を短期間でかつ低コ
ストで行うことのできる埋立工法を提供することを目的
としている。The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a landfill method capable of performing consolidation in a short period of time and at low cost when a landfill is created in a water area.
「課題を解決するための手段」 この発明に係る埋立工法は、水域に埋立地を造成する
に際し、予め埋立土砂を多数の可撓性を有する袋体に圧
密状態に詰めておき、これら多数の袋体を埋立予定地に
積み重ねることで埋立てを行うようにしたものである。[Means for Solving the Problems] In the landfill method according to the present invention, when constructing a landfill in a water area, landfill earth and sand are packed in advance in a bag having a number of flexible bodies in a compacted state. Landfill is performed by stacking bags at the landfill site.
「作用」 この発明の埋立工法によると、予め埋立土砂を多数の
袋体に圧密状態に詰めておくことで、埋立地の圧密に要
する期間を大幅に短縮化することができる。[Effect] According to the landfill method of the present invention, by filling landfill soil into a large number of bags in advance in a compacted state, the time required for compaction of the landfill can be greatly reduced.
「実施例」 図面はこの発明のウォーターフロントなどの水域に適
用した一実施例を示すもので、以下この発明に係る埋立
工法を工程順に説明する。"Embodiment" The drawings show an embodiment applied to a water area such as a waterfront of the present invention, and a landfill method according to the present invention will be described below in the order of steps.
（１）袋体の準備 まず、埋立地１を造成するための埋立土砂２を多数の
可撓性を有する袋体３…に詰めて口を閉じ、この状態
で、袋体３の外側から加圧手段により均等に圧力を加え
て埋立土砂２を圧縮、脱水し、凝集させその密度を高め
ておく。埋立土砂２は、例えば浚渫した土砂や山地から
採取した土砂等を利用すればよい。また、袋体３は、収
納した埋立土砂２の圧密作業に耐えるような例えば布、
塩化ビニール、ゴム等の材質のものでよい。(1) Preparation of bag body First, landfill 2 for landfill 1 is packed into a large number of flexible bag bodies 3..., And their mouths are closed. The landfill 2 is compressed, dehydrated, and coagulated to increase its density by uniformly applying pressure by a pressure means. The landfill soil 2 may be, for example, dredged sand or sediment collected from a mountain. Further, the bag body 3 is made of, for example, a cloth that can withstand the compaction operation of the stored landfill soil 2.
A material such as vinyl chloride or rubber may be used.
（２）埋立地の造成 このように圧密土（埋立土砂２）を収納した多数の袋
体３…が準備できたら、たとえばウォーターフロントな
どの水域５の埋立予定地６の周囲の地盤７上に止水壁８
を構築すると共に、その内部の海水を外部の水域５に排
水する。止水壁８は、鋼製矢板や既存のケーソンを用い
ればよく、あるいは護岸兼用のコンクリート製堤体とし
てもよい。そして、袋体３…を運搬船に積んで海上を埋
立予定地６まで運び、それら袋体３…を止水壁８内部に
降ろしてその底面に密接状態に敷き詰め順々に上方へ積
み重ねる。(2) Landfill Creation When a large number of bags 3 containing the compacted soil (landfill soil 2) are prepared in this way, for example, on the ground 7 around the landfill site 6 in the water area 5 such as a waterfront. Water stop wall 8
And drains the seawater inside to the outside water area 5. The water stop wall 8 may be a steel sheet pile or an existing caisson, or may be a concrete embankment that also serves as a seawall. Then, the bags 3 are loaded on a carrier and transported to the landfill site 6 by the sea, and the bags 3 are lowered into the water stop wall 8 and are laid in close contact with the bottom surface and are sequentially stacked upward.
このように埋立地１の造成がほぼ終わったら、後は埋
立地１上面の敷き均し、残土処分等を行えば埋立地１の
合成が完了する。After the landfill 1 has been almost completed in this way, the landfill 1 is completed by spreading the upper surface of the landfill 1 and disposing of the remaining soil.
なお、袋体３の運搬手段としては、袋体３…を仮置き
した陸地から埋立予定地６まで延びるベルトコンベア方
式もあり、いずれも選択するからその状況に応じ随意で
ある。As a means for transporting the bags 3, there is also a belt conveyor system extending from the land where the bags 3 are temporarily placed to the landfill site 6, and any of them is selected and is optional depending on the situation.
この実施例によれば、以下に示すような優れた効果を
奏する。According to this embodiment, the following excellent effects can be obtained.
予め埋立土砂２を袋体３…に詰めてこれを各々加圧
手段により圧密するようにしたから、盛土のによる従来
の圧密方法に比較して、埋立地１の圧密に要する期間を
大幅に短縮化することができるとともに、袋体３に詰め
た埋立土砂２の圧密効率を高めることができる。Since the landfill 2 is packed in the bags 3 in advance and these are compacted by the pressurizing means, the time required for compacting the landfill 1 is greatly reduced as compared with the conventional compacting method using embankment. And the consolidation efficiency of the landfill 2 filled in the bag 3 can be improved.
袋体３は可撓性を有するから、埋立予定地６に多数
の袋体３…を互いに密接状態に隙間なく載置でき、ま
た、袋体３の座り具合が良いことから埋立地１の地盤を
極めて安定状態に保持できる。したがって、前記効果と
合わせて、埋立地１全体の圧密効果をより高めることが
でき、埋立地１の地盤をより強固なものとすることがで
きる。Since the bag body 3 is flexible, a large number of bag bodies 3 can be placed in the landfill site 6 in close contact with each other without gaps, and since the bag body 3 is in a good sitting state, the ground of the landfill 1 is grounded. Can be kept in a very stable state. Therefore, the consolidation effect of the entire landfill 1 can be further enhanced, and the ground of the landfill 1 can be made stronger together with the above-mentioned effect.
盛土を載荷重とする場合のように圧密のための客土
を必要としないから、圧密用の客土費用を削減すること
ができ、また圧密の前工程、後工程が不要となって、圧
密費用を大幅に削減することができる。Since soil for consolidation is not required as in the case of embankment loading, the cost of soil for consolidation can be reduced, and pre- and post-processes of consolidation are not required. Costs can be significantly reduced.
なお、この実施例では、水域５の地盤７に止水壁８を
構築してその内部に底部から袋体３…を順々に積み重ね
るようにしたが、下半分に埋立土砂２を投入するととも
に、その上半分に袋体３…を積み重ねるようにしてもよ
い。この場合、安定地盤を確保しながら、その埋立費用
を安上がりとすることができる。In this embodiment, the water-blocking wall 8 is constructed on the ground 7 of the water area 5 and the bags 3 are sequentially stacked from the bottom inside the water-blocking wall 8. Alternatively, the bags 3 may be stacked in the upper half thereof. In this case, the landfill cost can be reduced while securing stable ground.
「発明の効果」 以上説明したように、この発明の埋立工法によれば、
水域に埋立地を造成するに際し、予め埋立土砂を多数の
可撓性を有する袋体に圧密状態に詰めておき、これら多
数の袋体を埋立予定地に積み重ねることで埋立てを行う
ようにしたから、埋立地の圧密に要する期間を大幅に短
縮化することができるとともに、その圧密効果をより高
めることができる。[Effect of the Invention] As described above, according to the landfill method of the present invention,
When constructing a landfill in the water area, landfill soil was previously packed into a large number of flexible bags in a compacted state, and these numerous bags were stacked on the landfill site for landfill. Therefore, the period required for consolidation of the landfill can be significantly reduced, and the consolidation effect can be further enhanced.
また、載荷重のための客土費用、敷きならし費用、残
土処分費用等が不要となるから、前述した効果と合わせ
て埋立地の圧密コストを大幅に削減することができる。In addition, since there is no need for the cost of the soil for the loading, the cost of laying the floor, the cost of disposing of the remaining soil, and the like, the consolidation cost of the landfill can be significantly reduced in addition to the effects described above.
図面はこの発明をウォーターフロント等の水域に適用し
た例を示す埋立工法の説明図である。 １……埋立地、 ２……埋立土砂、 ３……袋体、 ６……埋立予定地。The drawings are explanatory diagrams of a landfill method showing an example in which the present invention is applied to a water area such as a waterfront. 1 ... landfill, 2 ... landfill, 3 ... bag, 6 ... landfill site.
Claims (1)
土砂を多数の可撓性を有する袋体に圧密状態に詰めてお
き、これら多数の袋体を埋立予定地に積み重ねることで
埋立てを行うようにしたことを特徴とする埋立工法。When a landfill is created in a body of water, landfill earth and sand are packed in advance into a large number of flexible bags in a compacted state, and the large number of bags are stacked on a landfill site to be landfilled. Landfill method characterized by performing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31123388A JP2662626B2 (en) | 1988-12-09 | 1988-12-09 | Landfill method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31123388A JP2662626B2 (en) | 1988-12-09 | 1988-12-09 | Landfill method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02157310A JPH02157310A (en) | 1990-06-18 |
| JP2662626B2 true JP2662626B2 (en) | 1997-10-15 |
Family
ID=18014694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP31123388A Expired - Lifetime JP2662626B2 (en) | 1988-12-09 | 1988-12-09 | Landfill method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2662626B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102704496B (en) * | 2012-06-15 | 2014-09-03 | 天津济润石油海运服务有限公司 | Method for achieving slurry water separation and solidification of filling soil by utilizing filling bag and construction device |
| CN116145696A (en) * | 2022-12-15 | 2023-05-23 | 中国港湾工程有限责任公司 | Artificial island cofferdam-free hydraulic reclamation construction method |
-
1988
- 1988-12-09 JP JP31123388A patent/JP2662626B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02157310A (en) | 1990-06-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Matsuoka et al. | New earth reinforcement method by soilbags (" donow") | |
| CN102168430B (en) | Method for reducing soil pressure on retaining wall in expansive rock-soil area | |
| JP3506680B2 (en) | Reinforcement method of earth structure dam body | |
| US5599139A (en) | Method of constructing a liner system and waste containment facility incorporating same | |
| CN113266028B (en) | Construction method of sea area beach section highway riprap cofferdam seepage prevention system | |
| JP2662626B2 (en) | Landfill method | |
| CN218562377U (en) | Side slope seepage prevention structure | |
| CN108677999B (en) | Silt bagged soil retaining wall structure and construction method | |
| JP6734604B1 (en) | Mass treatment method for ton bags containing high and low level radioactive waste. | |
| JP4315620B2 (en) | Impermeable treatment method for managed waste landfill revetment | |
| JP6815672B1 (en) | How to contain radiation from concrete placement | |
| JP3045673B2 (en) | Lightweight backfill, backfill method and lightweight embankment method | |
| CN210031758U (en) | A surcharge and carry pre-compaction structure for soft soil highway section construction | |
| JP4006643B2 (en) | Method of burying underground objects and structure | |
| JP2776695B2 (en) | Prevention of settlement of buried pipeline by civil engineering sheet | |
| JP3028048B2 (en) | Caisson quay wicking prevention method | |
| JP2794316B2 (en) | Ground improvement method | |
| CN213572259U (en) | Dry-type stockpiling tailing pond intercepting ditch structure | |
| JP2000178957A (en) | Ground settlement acceleration method | |
| JP2868339B2 (en) | Lightweight embankment and embankment creation method | |
| JP3047268U (en) | Landfill | |
| US3890791A (en) | Method of building a tunnel and tunnel built according to said method | |
| JP2000273870A (en) | Ground stabilizing construction method | |
| Belshaw | Settlement of piles due to negative friction | |
| CN114086538A (en) | Method for replacing open pit bottom sludge by utilizing waste rock partition alternate extrusion |