JP3556607B2 - How to build a retaining wall - Google Patents

How to build a retaining wall Download PDF

Info

Publication number
JP3556607B2
JP3556607B2 JP2001093200A JP2001093200A JP3556607B2 JP 3556607 B2 JP3556607 B2 JP 3556607B2 JP 2001093200 A JP2001093200 A JP 2001093200A JP 2001093200 A JP2001093200 A JP 2001093200A JP 3556607 B2 JP3556607 B2 JP 3556607B2
Authority
JP
Japan
Prior art keywords
embankment
retaining wall
pressure receiving
bag
receiving plate
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
Application number
JP2001093200A
Other languages
Japanese (ja)
Other versions
JP2002294724A (en
Inventor
学 室田
秀之 佐々木
敏夫 松岡
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kurosawa Construction Co Ltd
Original Assignee
Kurosawa Construction Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kurosawa Construction Co Ltd filed Critical Kurosawa Construction Co Ltd
Priority to JP2001093200A priority Critical patent/JP3556607B2/en
Publication of JP2002294724A publication Critical patent/JP2002294724A/en
Application granted granted Critical
Publication of JP3556607B2 publication Critical patent/JP3556607B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Landscapes

  • Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
  • Retaining Walls (AREA)

Description

【0001】
【発明の属する技術分野】
本発明は擁壁の構築方法に関するものである。
【0002】
【従来の技術】
一般に、盛土や切土における急勾配な法面の崩壊を防ぐ擁壁としてコンクリート擁壁や石積擁壁が知られている。前者は法面前面にほば垂直に近いコンクリートの擁壁を設けたものであり、後者は前記と同様に法面前面にほば垂直に近い石積の擁壁を設けたものである。
【0003】
【発明が解決しようとする課題】
しかし、上記のようなコンクリート擁壁は、壁の厚みを厚くし、かつ控長を長くとらなければならないため、大がかりな構造物となって不経済であった。一方、後者は自立不能であるため、前記と同様に大がかりな構造物になるという問題があった。
【0004】
本発明は上記のような問題に鑑みてなされたものであり、その目的は、急勾配な法面の崩壊を防ぐ擁壁を、短期間でかつ経済的に構築することができる擁壁の構築方法を提供することである。
【0005】
【課題を解決するための手段】
以上の課題を解決するための手段は、請求項1の発明の擁壁の構築方法が、所定の高さの盛土前面に土留材を積んで急勾配な盛土部を形成する工程と、該盛土部にアンカー孔を削孔し、該アンカー孔にグラウトを注入する工程と、前記アンカー孔に引張材を挿入し、その下端部をグラウト内に埋設するとともに、その上端部を盛土部の前面に設置した受圧板に緊張定着する工程とからなることを特徴とし、また請求項2の発明の擁壁の構築方法が、請求項1において、引張材は仮緊張とし、盛土部を所定の高さに構築した後に本緊張することを特徴とし、また請求項3の発明の擁壁の構築方法が、請求項1または2において、土留材は土嚢、砂を詰め込んだ袋体、石を詰め込んだ袋体、砕石を詰め込んだ袋体またはコンクリートを充填した袋体であることを特徴とする。
【0006】
盛土前面に土留材を積むことにより、急勾配な法面にも受圧板を設置することができ、この受圧板を引張材で緊張定着することができる。擁壁を、大がかりな構造とせず、短期間でかつ経済的に構築することができる。盛土前面に土留材を積むことにより、急勾配な法面を簡単に形成することができる。
【0007】
【発明の実施の形態】
以下、本発明の擁壁の構築方法について説明するが、各実施の形態において同じ構成は同じ符号を付して説明し、異なった構成にのみ異なった符号を付して説明する。
【0008】
図1〜5は、第1の実施の形態の擁壁の構築方法であり、これは盛土工事における擁壁の構築方法を示したものである。はじめに、(1)に示すように、法面が安定勾配の一段目の盛土1を行い、この盛土1の前面に土留材2を積み上げる。この土留材2は土嚢を使用し、積み上げられた土嚢が崩れないように鉄筋で串刺し状にする(図示せず)。また土嚢が受圧板の押圧力により圧縮変形する場合は、土嚢に代わって、砂を詰め込んだ袋体、石を詰め込んだ袋体または籠体、砕石を詰め込んだ袋体または籠体、コンクリートを充填した袋体または籠体を積み上げることもできる。
【0009】
次に、(2)に示すように、一段目の盛土1の上に二段目の盛土3を行い、その前面に前記と同様の土留材2を積み上げて、前面に受圧板が設置できる厚さの盛土部4を形成する。
【0010】
次に、(3)に示すように、上記盛土部4にアンカー孔5を削孔し、ここにグラウトであるコンクリート6を注入する。そして、アンカー孔5内にPC鋼線などの引張材7を挿入して、その下端部をコンクリート6内に差し込むとともに、その上端部をアンカー孔5から導出する。そして、盛土部4の前面に受圧板8を隣接状態で設置し、該受圧板8にアンカー孔5から導出した引張材7の上端部を定着する。
【0011】
次に、(4)に示すように、二段目の盛土2の上に三段目の盛土9を行って、その前面に土留材2を積み上げる。そして、アンカー孔5内のコンクリート6が硬化した後に、引張材7を緊張して受圧板8を固定すると、図2に示すような擁壁下部10が形成される。この受圧板8は、図3に示すように、平面方形のコンクリート板11の上面に突起部12が十字状に形成され、これらの突起部12の交差部に引張材の差込孔13が設けられている。
【0012】
次に、上記のように擁壁下部10が形成された後、図4の(1)に示すように、三段目の盛土9の上に、四段目および五段目の盛土14、15を行い、その前面に前記と同じ方法で土留材2を積み上げる。
【0013】
次に、(2)に示すように、四段目および五段目の盛土14、15で形成された盛土部16にアンカー孔5を削孔し、ここにグラウトであるコンクリート6を注入する。そして、上記と同様に、アンカー孔5内にPC鋼線などの引張材7を挿入して、その下端部をコンクリート6内に差し込むとともに、その上端部をアンカー5孔から導出して、盛土部16の前面に隣接状態で設置した受圧板8に定着する。
【0014】
次に、(3)に示すように、五段目の盛土15の上に六段目の盛土17を行って、その前面に土留材2を積み上げる。そして、アンカー孔5内のコンクリート6が硬化した後に、引張材7を緊張して受圧板8を固定すると、(4)に示すような擁壁18が完成する。
【0015】
なお、上記の実施の形態において、引張材7は受圧板8を設置した後に、本緊張をしていたが、本緊張ではなく仮緊張しておき、盛土部4、16を所定の高さに構築し、かつ全ての受圧板8を設置した後に、本緊張するようにしてもよい。
【0016】
図5は、第2の実施の形態の擁壁の構築方法であり、拡幅工事における擁壁の構築方法を示したものである。この擁壁19も上記と同じ方法で構築することができるが、アンカー孔5は切土19a側に形成される。
【0017】
また図6〜8は、他の受圧板を用いた擁壁の構築方法を示したものである。図6は十字状の腕部20の間に平面三角形の床板21を設けた受圧板22であり、図7は平面十字形の受圧板23であり、図8は平面I形の受圧板24である。これらの擁壁25、26、27も、上記と同じ方法で構築する。これらの受圧板はコンクリート製だけでなく、メタル製または樹脂製もある。
【0018】
【発明の効果】
盛土前面に土留材を積むことにより、急勾配な法面にも受圧板を設置することができ、この受圧板を引張材で緊張定着することができる。
【0019】
擁壁を大がかりな構造とせずに、短期間でかつ経済的に構築することができる。
【0020】
盛土前面に土留材を積むことにより、急勾配な法面を簡単に形成することができる。
【図面の簡単な説明】
【図1】(1)〜(4)は第1の実施の形態の擁壁の構築方法を示す工程図である。
【図2】擁壁下部の正面図である。
【図3】受圧板の平面図である。
【図4】(1)〜(3)は第1の実施の形態の擁壁の構築方法を示す工程図、(4)は擁壁の正面図である。
【図5】(1)〜(6)は第2の実施の形態の擁壁の構築方法を示す工程図である。
【図6】第3の実施の形態の擁壁の正面図である。
【図7】第4の実施の形態の擁壁の正面図である。
【図8】第5の実施の形態の擁壁の正面図である。
【符号の説明】
1 一段目の盛土
2 土留材
3 二段目の盛土
4、16 盛土部
5 アンカー孔
6 コンクリート
7 引張材
8、22、23、24 受圧板
9 三段目の盛土
10 擁壁下部
11 コンクリート板
12 突起部
13 差込孔
14 四段目の盛土
15 五段目の盛土
17 六段目の盛土
18、19、25、26、27 擁壁
19a 切土
20 腕部
21 床板
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a method for constructing a retaining wall.
[0002]
[Prior art]
Generally, concrete retaining walls and masonry retaining walls are known as retaining walls for preventing a steep slope from being collapsed in embankment or cut. The former has a concrete retaining wall which is almost vertical at the front of the slope, and the latter has a masonry retaining wall which is almost vertical at the front of the slope as described above.
[0003]
[Problems to be solved by the invention]
However, the concrete retaining wall as described above has to be large-scale and uneconomical because the thickness of the wall must be increased and the length of the wall must be increased. On the other hand, since the latter is not self-supporting, there is a problem that the structure becomes large as described above.
[0004]
The present invention has been made in view of the above problems, and an object of the present invention is to construct a retaining wall capable of quickly and economically constructing a retaining wall for preventing a steep slope from collapsing. Is to provide a way.
[0005]
[Means for Solving the Problems]
Means for solving the above problems include a method of constructing a retaining wall according to the first aspect of the present invention, comprising the steps of forming a steep embankment portion by loading earth retaining material on a front surface of an embankment having a predetermined height; Drilling an anchor hole in the part, grouting the anchor hole, inserting a tensile material into the anchor hole, burying the lower end in the grout, and placing the upper end on the front of the embankment part And a step of tension-fixing to the installed pressure-receiving plate. The method for constructing a retaining wall according to the second aspect of the present invention is the method according to the first aspect, wherein the tension member is temporarily tensioned, and the embankment portion has a predetermined height. The method of constructing a retaining wall according to the third aspect of the present invention is characterized in that, after being constructed, the retaining wall is constructed according to the first or second aspect, wherein the earth retaining material is a sandbag, a bag packed with sand, or a bag packed with stone. Body, crushed stone packed bag or concrete filled bag And characterized in that.
[0006]
By loading the earth retaining material on the front of the embankment, a pressure receiving plate can be installed on a steep slope, and the pressure receiving plate can be tensioned and fixed with a tensile material. The retaining wall can be constructed in a short period of time and economically without a large-scale structure. Steep slopes can be easily formed by loading earth retaining material on the front of the embankment.
[0007]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, a method of constructing a retaining wall according to the present invention will be described. In each embodiment, the same components are denoted by the same reference numerals, and only different components are denoted by different reference numerals.
[0008]
1 to 5 show a method of constructing a retaining wall according to the first embodiment, which shows a method of constructing a retaining wall in embankment work. First, as shown in (1), the first slope of the embankment 1 having a stable slope is performed, and the earth retaining material 2 is stacked on the front surface of the embankment 1. The earth retaining material 2 uses a sandbag and is skewered with a reinforcing bar (not shown) so that the stacked sandbags do not collapse. If the sandbag compresses and deforms due to the pressure of the pressure receiving plate, instead of the sandbag, fill the bag with sand, the bag or basket with stone, the bag or basket with crushed stone, or the concrete. Bags or baskets can be stacked.
[0009]
Next, as shown in (2), a second-stage embankment 3 is performed on the first-stage embankment 1, and the same retaining material 2 as above is piled on the front surface, and a pressure receiving plate can be installed on the front surface. The embankment 4 is formed.
[0010]
Next, as shown in (3), an anchor hole 5 is drilled in the embankment portion 4, and concrete 6 as grout is poured into the hole. Then, a tensile member 7 such as a PC steel wire is inserted into the anchor hole 5, the lower end thereof is inserted into the concrete 6, and the upper end thereof is led out from the anchor hole 5. Then, a pressure receiving plate 8 is installed adjacent to the front surface of the embankment portion 4, and the upper end of the tension member 7 led out from the anchor hole 5 is fixed to the pressure receiving plate 8.
[0011]
Next, as shown in (4), the third-stage embankment 9 is performed on the second-stage embankment 2, and the earth retaining material 2 is stacked on the front surface thereof. Then, after the concrete 6 in the anchor hole 5 is hardened, the tension member 7 is tensioned to fix the pressure receiving plate 8, thereby forming the lower retaining wall portion 10 as shown in FIG. As shown in FIG. 3, the pressure receiving plate 8 has a projection 12 formed in a cross shape on the upper surface of a flat rectangular concrete plate 11, and an insertion hole 13 for a tensile material is provided at an intersection of the projections 12. Have been.
[0012]
Next, after the retaining wall lower part 10 is formed as described above, as shown in FIG. 4A, the fourth and fifth embankments 14 and 15 are placed on the third embankment 9. Is carried out, and the earth retaining material 2 is stacked on the front surface in the same manner as described above.
[0013]
Next, as shown in (2), the anchor hole 5 is drilled in the embankment portion 16 formed by the fourth and fifth embankments 14 and 15, and concrete 6 as grout is poured into the hole. Then, in the same manner as above, a tensile member 7 such as a PC steel wire is inserted into the anchor hole 5 and its lower end is inserted into the concrete 6, and its upper end is led out from the anchor 5 hole, and the embankment is formed. It is fixed to the pressure receiving plate 8 installed adjacent to the front surface of the pressure plate 16.
[0014]
Next, as shown in (3), the sixth-stage embankment 17 is performed on the fifth-stage embankment 15, and the earth retaining material 2 is stacked on the front surface thereof. Then, after the concrete 6 in the anchor hole 5 is hardened, the tension member 7 is tensioned to fix the pressure receiving plate 8, whereby the retaining wall 18 as shown in (4) is completed.
[0015]
In the above-described embodiment, the tension member 7 is fully tensioned after the pressure receiving plate 8 is installed. However, the tension member is not temporarily tensioned, but is temporarily tensioned, and the embankment portions 4 and 16 are set to a predetermined height. After the construction and the installation of all the pressure receiving plates 8, the main tension may be applied.
[0016]
FIG. 5 shows a method of constructing a retaining wall according to the second embodiment, and shows a method of constructing a retaining wall in widening work. The retaining wall 19 can be constructed in the same manner as described above, but the anchor hole 5 is formed on the cut 19a side.
[0017]
6 to 8 show a construction method of a retaining wall using another pressure receiving plate. 6 shows a pressure receiving plate 22 having a plane triangular floor plate 21 provided between the cross-shaped arms 20, FIG. 7 shows a pressure receiving plate 23 having a plane cross shape, and FIG. 8 shows a pressure receiving plate 24 having a plane I shape. is there. These retaining walls 25, 26, 27 are also constructed in the same manner as described above. These pressure receiving plates are not only made of concrete but also made of metal or resin.
[0018]
【The invention's effect】
By loading the earth retaining material on the front of the embankment, a pressure receiving plate can be installed on a steep slope, and the pressure receiving plate can be tensionally fixed with a tensile material.
[0019]
It is possible to construct the retaining wall in a short period of time and economically, without making the retaining wall a large-scale structure.
[0020]
Steep slopes can be easily formed by loading earth retaining material on the front of the embankment.
[Brief description of the drawings]
FIGS. 1 (1) to 1 (4) are process diagrams showing a method for constructing a retaining wall according to a first embodiment.
FIG. 2 is a front view of a lower portion of a retaining wall.
FIG. 3 is a plan view of a pressure receiving plate.
FIGS. 4 (1) to (3) are process diagrams showing a method of constructing a retaining wall according to the first embodiment, and (4) is a front view of the retaining wall.
FIGS. 5 (1) to (6) are process diagrams showing a method for constructing a retaining wall according to a second embodiment.
FIG. 6 is a front view of a retaining wall according to a third embodiment.
FIG. 7 is a front view of a retaining wall according to a fourth embodiment.
FIG. 8 is a front view of a retaining wall according to a fifth embodiment.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 First-stage embankment 2 Earth retaining material 3 Second-stage embankment 4, 16 Embankment part 5 Anchor hole 6 Concrete 7 Tensile material 8, 22, 23, 24 Pressure receiving plate 9 Third-stage embankment 10 Lower part of retaining wall 11 Concrete plate 12 Projection 13 Insertion hole 14 Fourth-stage embankment 15 Fifth-stage embankment 17 Sixth-stage embankment 18, 19, 25, 26, 27 Retaining wall 19a Cut 20 Arm 21 Floor plate

Claims (3)

所定の高さの盛土前面に土留材を積んで急勾配な盛土部を形成する工程と、該盛土部にアンカー孔を削孔し、該アンカー孔にグラウトを注入する工程と、前記アンカー孔に引張材を挿入し、その下端部をグラウト内に埋設するとともに、その上端部を盛土部の前面に設置した受圧板に緊張定着する工程とからなることを特徴とする擁壁の構築方法。A step of forming a steep embankment portion by loading earth retaining material on the front surface of the embankment having a predetermined height, a step of drilling an anchor hole in the embankment portion, and injecting grout into the anchor hole; Inserting a tension member, embedding a lower end of the tension member in the grout, and tension-fixing an upper end of the upper end to a pressure receiving plate installed on a front surface of the embankment portion. 引張材は仮緊張とし、盛土部を所定の高さに構築した後に本緊張することを特徴とする請求項1に記載の擁壁の構築方法。The method according to claim 1, wherein the tension member is temporarily tensioned, and the embankment is constructed at a predetermined height and then fully tensioned. 土留材は土嚢、砂を詰め込んだ袋体、石を詰め込んだ袋体または籠体、砕石を詰め込んだ袋体または籠体、コンクリートを充填した袋体または籠体であることを特徴とする請求項1または2に記載の擁壁の構築方法。The earth retaining material is a sandbag, a bag packed with sand, a bag or basket packed with stone, a bag or basket packed with crushed stone, a bag or basket filled with concrete. 3. The method for constructing a retaining wall according to 1 or 2.
JP2001093200A 2001-03-28 2001-03-28 How to build a retaining wall Expired - Lifetime JP3556607B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2001093200A JP3556607B2 (en) 2001-03-28 2001-03-28 How to build a retaining wall

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2001093200A JP3556607B2 (en) 2001-03-28 2001-03-28 How to build a retaining wall

Publications (2)

Publication Number Publication Date
JP2002294724A JP2002294724A (en) 2002-10-09
JP3556607B2 true JP3556607B2 (en) 2004-08-18

Family

ID=18947563

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2001093200A Expired - Lifetime JP3556607B2 (en) 2001-03-28 2001-03-28 How to build a retaining wall

Country Status (1)

Country Link
JP (1) JP3556607B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012167508A (en) * 2011-02-16 2012-09-06 Geovector Co Ltd Reinforced soil wall construction method and wall surface material

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100770250B1 (en) 2007-04-30 2007-10-25 주식회사 팸택 Construnction method of retaining wall and retaining wall structure using the same
KR101185423B1 (en) 2012-04-27 2012-10-08 주식회사 두룡 Reinforcement retaining wall
JP7115817B2 (en) * 2017-02-10 2022-08-09 矢作建設工業株式会社 Reinforced soil wall using large sandbags and retaining method using large sandbags

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012167508A (en) * 2011-02-16 2012-09-06 Geovector Co Ltd Reinforced soil wall construction method and wall surface material

Also Published As

Publication number Publication date
JP2002294724A (en) 2002-10-09

Similar Documents

Publication Publication Date Title
JP2006283292A (en) Retaining wall structure and retaining wall construction method
JP3556607B2 (en) How to build a retaining wall
JP2007177492A (en) Pier reinforcing method
JP5124007B2 (en) Retaining wall construction method
JPH0988080A (en) Sheathing structure
KR100451429B1 (en) Combination system of block type reinforced retaining wall used waste concrete and waste limestone and constructing method thereof
JP4316939B2 (en) Masonry wall reinforcement method
JPH0739666B2 (en) Permeable temporary earth retaining material, permeable frame structure and concrete wall construction method
KR100497796B1 (en) Bar type grid and structure for reinforcing block retaining wall used it
KR100998501B1 (en) Gravitational precast retaining wall for sticking to all slope using fall protection net and wire
JPH028412A (en) Method and device for treating pile head
JP7472387B1 (en) Structure of the crest and construction method of the crest
JP2718853B2 (en) Construction method in which slope is composed of precast concrete block
KR102102744B1 (en) Multifunctional bearing plate for civil engineering and soil nailing method using the same
JPH05306523A (en) Banking work
JPH11210004A (en) Reinforcing retaining wall construction method for slope
JPH0359222A (en) Steep slope banking
KR200318951Y1 (en) Blocks used in the construction of retaining walls
JPH05163741A (en) Temporary earth-retaining member and construction of concrete wall
JP2000319884A (en) Reinforced mud wall structure
JPH04102630A (en) Construction method for block piled retaining wall
JPH09209370A (en) Method for constructing foundation of building
JPH03191113A (en) Soil cement self-supporting landslide protection wall and execution method thereof
JP2004316326A (en) Block for retaining wall and masonry construction method
JPS60173223A (en) Construction of concrete wall

Legal Events

Date Code Title Description
TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20040421

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20040512

R150 Certificate of patent or registration of utility model

Ref document number: 3556607

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

Free format text: JAPANESE INTERMEDIATE CODE: R150

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20080521

Year of fee payment: 4

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20090521

Year of fee payment: 5

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20100521

Year of fee payment: 6

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20100521

Year of fee payment: 6

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20110521

Year of fee payment: 7

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20120521

Year of fee payment: 8

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20120521

Year of fee payment: 8

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20130521

Year of fee payment: 9

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20130521

Year of fee payment: 9

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20140521

Year of fee payment: 10

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

EXPY Cancellation because of completion of term