JP2802815B2 - Embankment structure - Google Patents
Embankment structureInfo
- Publication number
- JP2802815B2 JP2802815B2 JP13931890A JP13931890A JP2802815B2 JP 2802815 B2 JP2802815 B2 JP 2802815B2 JP 13931890 A JP13931890 A JP 13931890A JP 13931890 A JP13931890 A JP 13931890A JP 2802815 B2 JP2802815 B2 JP 2802815B2
- Authority
- JP
- Japan
- Prior art keywords
- construction
- soil
- stabilized soil
- embankment
- rubble
- 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 - Fee Related
Links
Landscapes
- Revetment (AREA)
Description
【発明の詳細な説明】 《産業上の利用分野》 本発明は、防波堤や突堤等に好適な堤体構造に関す
る。DETAILED DESCRIPTION OF THE INVENTION << Field of Industrial Use >> The present invention relates to a bank structure suitable for a breakwater, a jetty, and the like.
《従来の技術》 この種の堤体には、例えば防波堤、防潮堤、導流堤、
水門、護岸、堤防、突堤等があり、船舶の停泊や荷役の
安全と、各種の港湾施設や付帯施設等の安全を図るため
に設置される。<< Conventional Technology >> This type of embankment includes, for example, breakwaters, seawalls, headwaters,
There are sluices, seawalls, embankments, jetties, etc. These are installed to ensure the safety of berthing and cargo handling of ships and the safety of various port facilities and incidental facilities.
堤体構造としては、各堤体の具体的機能等に応じて形
状、機能、材料など多種多様な形式のものが考えられて
いる。第５図は従来の傾斜堤の代表的な構造例を示して
いる。Various types of embankment structures, such as shapes, functions, and materials, are considered according to the specific functions of each embankment. FIG. 5 shows a typical structural example of a conventional sloped bank.
同図の傾斜堤ａは、地盤の基礎部ｂに捨石材ｃを積載
するとともに、捨石材ｃの表面を被覆材ｄにて覆ったも
のであり、使用材料によって捨石式、捨ブロック式、両
者を組み合わせた混合式等に大別できる。このように、
捨石材を主体とした堤体構造にあっては、海底地盤の凹
凸状態にあまり影響されることなく施工できること、施
工工程が比較的単純なこと等から特に水深の浅いところ
に多用されている。The inclined levee a shown in the figure has a foundation part b of the ground loaded with rubble c, and the surface of the rubble c is covered with a covering material d. Can be roughly classified into a mixed type or the like in which in this way,
The embankment structure mainly made of rubble is often used particularly in shallow places because the construction can be performed without being affected by the unevenness of the seabed and the construction process is relatively simple.
《発明が解決しようとする問題点》 しかしながら、最近では捨石材自体が次第に欠乏しつ
つあり、現場近域で入手することは困難なことが多い。
また、捨石材は大きさや形状が千差万別となっているこ
とに加え、数十から百kg以上の重さのものまで混在する
ため積降しや運搬車類および施工機械類が大型化とな
り、しかも所定の堤形状に形成し難いので、経済性およ
び施工性が悪く、急速施工に対処できない等の問題があ
る。<< Problems to be Solved by the Invention >> However, recently, rubble itself is gradually becoming scarce, and it is often difficult to obtain it near the site.
In addition, the size and shape of rubble stones vary widely, and the size and shape of rubble stones vary from tens to hundreds of kilograms or more. In addition, since it is difficult to form a predetermined bank shape, there is a problem that economic efficiency and workability are poor, and rapid construction cannot be dealt with.
本発明は、以上の不具合を解決するもので、工期およ
び工費ともに低減できる堤体構造を堤供することにあ
る。An object of the present invention is to provide a bank structure that solves the above problems and can reduce both the construction period and construction cost.
《課題を解決するための手段》 上記目的を達成するために、本発明の堤体構造は、土
砂に固結材を混合処理した自立可能な安定処理土を地盤
の基礎部に盛立てるとともに、前記安定処理土の表面に
被覆部材を設けてなることを特徴としている。<< Means for Solving the Problems >> In order to achieve the above object, the embankment structure of the present invention lays up a self-sustainable stabilized soil obtained by mixing and fixing a solidifying material on earth and sand on a foundation portion of the ground, It is characterized in that a covering member is provided on the surface of the stabilized soil.
《作 用》 以上の構成によれば、土砂に固結材を混合処理した自
立可能な安定処理土を主材料としているので、捨石材に
対して運搬、施工性等の点で有利となり、また迅速施工
も容易となる。<Operation> According to the above configuration, since the main material is a self-sustainable stabilized soil obtained by mixing the soil with the compacting material, it is advantageous in terms of transportability, workability, and the like with respect to rubble, and Rapid construction is also easy.
なお、本発明は、土砂に固結材を混合処理した自立可
能な安定処理土を要件としている。In addition, the present invention requires a self-sustainable stabilized soil obtained by mixing and processing a consolidated material with earth and sand.
《実施例》 以下、本発明の実施例について図面を参照し説明す
る。<< Example >> Hereinafter, an example of the present invention will be described with reference to the drawings.
第１図は本発明の堤体構造を適用した傾斜堤を示す模
式断面図である。同図の傾斜堤１は、防波を目的として
数メートルという水深海域に設けられたもので、海底に
捨石２により基礎部３が形成され、基礎部３の上に安定
処理土４を盛立てるとともに、安定処理土４の表面に被
覆部材５を設置した構造物となっている。FIG. 1 is a schematic sectional view showing an inclined levee to which the levee body structure of the present invention is applied. The inclined levee 1 shown in the figure is provided in a deep sea area of several meters for the purpose of breaking off a wave, and a base portion 3 is formed by rubble 2 on the sea floor, and a stabilized soil 4 is laid on the base portion 3. At the same time, the structure is such that the covering member 5 is installed on the surface of the stabilized soil 4.
ここで、本発明の要部をなす安定処理材４は、土砂に
固結材を混合処理したものにより構成されている。具体
的には、現地の土砂の固結材とを混合処理したもので、
特に自立強度（約４〜6kg/cm2）有し、単位重量、透水
性、経済性等を設計諸条件を充足するよう調整され、ま
た固結材としてはセメント等を用いることができる。Here, the stabilizing material 4 which is a main part of the present invention is made of a material obtained by mixing earth and sand with a solidifying material. Specifically, it is a mixture of local soil and sand compacted,
In particular, it has a self-supporting strength (about 4 to 6 kg / cm 2 ), and its unit weight, water permeability, economy and the like are adjusted to satisfy various design conditions, and cement or the like can be used as a consolidating material.
混合処理条件としては、セメント量として50〜70kg/m
3、水量として自然湿潤状態、締固め度として圧縮率15
〜25％を目安とすることが好ましい。As the mixing conditions, the cement amount is 50-70 kg / m
3 compression ratio of 15, a natural wet state as the amount of water, as the degree of compaction
It is preferable that the standard is about 25%.
次ぎに、前記傾斜堤１の施工例を第２図および第３図
を参照しながら概説する。なお、第２図および第３図は
前記傾斜堤の構築過程に示す模式断面図である。また、
基礎部３については、従来同様な海上施工により盛立て
ることで構成されている。Next, an example of the construction of the inclined levee 1 will be outlined with reference to FIG. 2 and FIG. FIG. 2 and FIG. 3 are schematic sectional views showing a construction process of the inclined levee. Also,
The base part 3 is constructed by embedding by the same offshore construction as in the past.
第２図は第１段目を設ける工程を示している。ここで
は、基礎部３が施工されており、基礎部３上の所定の箇
所に型枠６を設置し、型枠６内に安定処理土４を入れて
第１段目4aを形成する。施工に際しては、先行部分を作
業足場として施工することを前堤として、段数やブロッ
クの大きさ等が施工サイクルとともに設計されるととも
に、各段数の安定処理土４の使用量が決定される。FIG. 2 shows a step of providing the first stage. Here, the base part 3 is constructed, the formwork 6 is installed at a predetermined position on the base part 3, and the stabilized soil 4 is put in the formwork 6 to form the first stage 4a. At the time of construction, the number of steps, the size of blocks, and the like are designed along with the construction cycle, and the amount of the stabilized soil 4 to be used is determined for each number of steps, with the preceding part being used as a work scaffold as a front embankment.
型枠６は木製の簡易なものが用いられ、基礎部３上に
所定の大きさに組付け設置される。そして、実施工では
現場土砂をふるい分けしたものをバックホーでミキサー
車に投入して、混合処理したものをトラッククレーンで
型枠６内に盛立てる。The formwork 6 is a simple wooden one, and is mounted on the base 3 in a predetermined size. Then, in the construction work, the sieved soil at the site is put into the mixer truck by the backhoe, and the sieved mixture is laid in the formwork 6 by the truck crane.
第３図は第２段目4bの施工を示し、１段目4aの外側に
対応する被覆石５を積載した後、被覆石５の上に外枠６
を設置し、安定処理土４を盛立てた状態である。この場
合、第２段目からの施工では、前の段を足場として利用
可能なので作業効率がよい。FIG. 3 shows the construction of the second stage 4b. After the corresponding covering stone 5 is loaded on the outside of the first stage 4a, the outer frame 6 is placed on the covering stone 5.
Is installed, and the stabilized soil 4 is erected. In this case, in the construction from the second step, work efficiency is good because the previous step can be used as a scaffold.
また、第２段目4bの上にさらに複数段を順時に繰り返
して施工することにより、第１図の傾斜堤１が得られ
る。なお、被覆石５は、各段4a,4b…を施工した後に積
載するようにしてもよい。In addition, by repeatedly performing a plurality of steps sequentially on the second step 4b, the inclined levee 1 shown in FIG. 1 can be obtained. Note that the covering stone 5 may be loaded after the steps 4a, 4b,.
第４図は本発明の第２実施例を示したもので、水深が
浅い場合に全て安定処理土を用いたときの例である。FIG. 4 shows a second embodiment of the present invention, in which the stabilized soil is used in all cases where the water depth is shallow.
つまり、同図の傾斜堤10は、防波を目的として、水深
ｔが1m程度以内の浅海域に設けられたもので、軽備な仮
締切を用い、海底地盤上に直接安定処理土40を陸上施工
機により盛立て構築するものである。なお、符号50は被
覆部材を示している。In other words, the slope embankment 10 in the figure is provided in a shallow sea area with a water depth t of about 1 m or less for the purpose of breaking off waves, and a light temporary deadline is used to directly stabilize the soil 40 on the seabed ground. It is to be erected and constructed by a land construction machine. Note that reference numeral 50 indicates a covering member.
以上の堤体構造では、従来の捨石材に代えて土砂に固
結材を混合処理した安定処理土4,40を用いているので、
主材料の入手が容易となるとともに、形状出しも容易と
なる。In the above embankment structure, the stabilized treated soil 4,40 obtained by mixing the solidified material with earth and sand is used instead of the conventional rubble,
It is easy to obtain the main material, and it is easy to obtain the shape.
本発明は、以上の実施例に限られず、その要旨の範囲
内で種々変形あるいは発展することができるものであ
る。The present invention is not limited to the above embodiments, but can be variously modified or developed within the scope of the gist.
《効果》 以上説明したように、本発明の堤体構造にあっては、
土砂に固結材を混合処理した自立可能な安定処理土を主
材料として用いるので、捨石材に対して施工性がよいこ
とから工期短縮を図ることができ、また運搬等の経費が
低減されることから工費を低減できる。特に、構成材料
である土砂は枯桔渇するということがなく、しかも現地
で容易に入手可能なので迅速施工に対処できる。<< Effect >> As described above, in the embankment structure of the present invention,
As the main material is a self-sustainable stabilized soil obtained by mixing the soil with the consolidated material, the workability can be shortened due to the good workability of rubble, and the cost of transportation etc. is reduced. Therefore, the construction cost can be reduced. In particular, the soil, which is a constituent material, is not depleted, and can be easily obtained on site so that quick construction can be dealt with.
第１図は本発明の実施例を示す傾斜堤の模式断面図、第
２図および第３図は前記傾斜堤の構築過程を示す模式断
面図、第４図は前記傾斜堤の他の例を示す模式断面図、
第５図は従来例としての傾斜堤を示す模式断面図であ
る。 1,10……傾斜堤 ３……基礎部 5,50……被覆部材 4,40……安定処理土 ６……型枠FIG. 1 is a schematic sectional view of an inclined levee showing an embodiment of the present invention, FIGS. 2 and 3 are schematic sectional views showing a construction process of the inclined levee, and FIG. 4 is another example of the inclined levee. Schematic sectional view,
FIG. 5 is a schematic sectional view showing a sloped bank as a conventional example. 1,10… inclined embankment 3… foundation 5,50… covering member 4,40… stabilized soil 6 …… form
───────────────────────────────────────────────────── フロントページの続き (72)発明者 森岡 宏郎 東京都台東区台東１―２―１ 不動建設 株式会社内 (56)参考文献 特開 昭49−33443（ＪＰ，Ａ) 特開 平３−156010（ＪＰ，Ａ) (58)調査した分野(Int.Cl.6，ＤＢ名) E02B 3/06──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Hiroo Morioka 1-2-1 Taito, Taito-ku, Tokyo Fudo Construction Co., Ltd. (56) References JP-A-49-33443 (JP, A) JP-A-3-3 156010 (JP, A) (58) Field surveyed (Int. Cl. 6 , DB name) E02B 3/06
Claims (1)
定処理土を地盤の基礎部に盛立てるとともに、前記安定
処理土の表面に被覆部材を設けてなることを特徴とする
堤体構造。1. A levee body comprising: a self-supporting stabilized soil obtained by mixing a sand with a solidifying material; laying the ground on a foundation portion of the ground; and a covering member provided on the surface of the stabilized soil. Construction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13931890A JP2802815B2 (en) | 1990-05-29 | 1990-05-29 | Embankment structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13931890A JP2802815B2 (en) | 1990-05-29 | 1990-05-29 | Embankment structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0434108A JPH0434108A (en) | 1992-02-05 |
| JP2802815B2 true JP2802815B2 (en) | 1998-09-24 |
Family
ID=15242519
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13931890A Expired - Fee Related JP2802815B2 (en) | 1990-05-29 | 1990-05-29 | Embankment structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2802815B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6361889B2 (en) * | 2016-02-08 | 2018-07-25 | Ｊｆｅスチール株式会社 | Artificial shallow or tidal flat |
| JP7214521B2 (en) * | 2019-03-18 | 2023-01-30 | Ｊｆｅ建材株式会社 | Construction method of training dike for permanent measures and training dike for permanent measures |
-
1990
- 1990-05-29 JP JP13931890A patent/JP2802815B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0434108A (en) | 1992-02-05 |
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