JP2000345565A - Ground anchor construction method and pressure- receiving plate bearing material - Google Patents
Ground anchor construction method and pressure- receiving plate bearing materialInfo
- Publication number
- JP2000345565A JP2000345565A JP11324901A JP32490199A JP2000345565A JP 2000345565 A JP2000345565 A JP 2000345565A JP 11324901 A JP11324901 A JP 11324901A JP 32490199 A JP32490199 A JP 32490199A JP 2000345565 A JP2000345565 A JP 2000345565A
- Authority
- JP
- Japan
- Prior art keywords
- receiving plate
- slope
- pressure
- pressure receiving
- anchor
- 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.)
- Granted
Links
Landscapes
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、斜面を安定化する
ために実施されるグラウンドアンカー工法、および、そ
のグラウンドアンカー工法において、斜面と受圧板との
間に配置されて使用される受圧板支持材、ならびに補強
された受圧板支持材に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ground anchor method for stabilizing a slope, and a pressure receiving plate support which is used between the slope and the pressure receiving plate in the ground anchor method. Materials, as well as reinforced pressure plate supports.
【０００２】[0002]
【従来の技術】傾斜地盤の傾面の地滑り、崩壊等を防止
して斜面を安定化するために実施されるグラウト材等に
よって固定されるとともに、アンカー材の他方の端部
が、斜面から突出された状態とされる。そして、この斜
面から突出したアンカー材の端部に、繊維強化プラスチ
ック、コンクリート等によって構成された複数枚の板材
が、上下方向に積み重ねられて構成された受圧板によっ
て取り付けられる。2. Description of the Related Art A slope is fixed by a grout material or the like which is implemented to prevent a landslide, a collapse, etc. of the slope of the slope ground and stabilize the slope, and the other end of the anchor material protrudes from the slope. State. Then, a plurality of plate members made of fiber reinforced plastic, concrete, or the like are attached to an end of the anchor member protruding from the slope by a pressure receiving plate formed by vertically stacking.
【０００３】このような状態で、アンカー材が緊張され
ると、アンカー材の一方の端部が安定地盤にグラウト材
等によって固定されているために、受圧板が斜面に圧接
される。そして、アンカー材の緊張による圧力が、受圧
板によって、斜面に対して分散された状態で加わるため
に、斜面の地滑り、崩壊等が防止される。In such a state, when the anchor material is tensioned, the pressure receiving plate is pressed against the slope because one end of the anchor material is fixed to the stable ground by the grout material or the like. Then, since the pressure due to the tension of the anchor member is applied to the slope by the pressure receiving plate in a state of being dispersed, the landslide or collapse of the slope is prevented.
【０００４】[0004]
【発明が解決しようとする課題】受圧板が圧接される斜
面は、通常、受圧板全体が斜面に対して圧接されるよう
に、土木作業機械によって平坦化されている。しかしな
がら、斜面が礫等によって凹凸状になっていたり、急傾
斜になっていると、斜面を平坦化することは容易でない
という問題がある。また、完全に平坦化されずに凹凸状
になった斜面に対して受圧板が圧接されると、受圧板に
よって、斜面に対して圧力を均等に分散させることがで
きないおそれがある。また、受圧板に対する地盤反力が
不均一に加わり、受圧板に大きな応力が加わって、受圧
板自体が破損するおそれもある。The slope on which the pressure plate is pressed is usually flattened by a civil engineering machine so that the entire pressure plate is pressed against the slope. However, there is a problem that it is not easy to flatten the slope if the slope is uneven due to gravel or the like, or if the slope is steep. In addition, when the pressure receiving plate is pressed against a slope which is not completely flattened and becomes uneven, the pressure receiving plate may not be able to evenly distribute the pressure on the slope. In addition, the ground reaction force against the pressure receiving plate is unevenly applied, and a large stress is applied to the pressure receiving plate, which may damage the pressure receiving plate itself.
【０００５】このような問題を解決するために、受圧板
と斜面との間に、発泡スチロール、スポンジ、発泡ポリ
エチレン等の発泡体、ゴム等の弾性体を介在させて、斜
面の不陸を弾性体の変形によって吸収することが行なわ
れている。このように、弾性体によって、斜面の不陸を
吸収させることにより、受圧板からの圧力を斜面に対し
て均等に分散させることができる。In order to solve such a problem, an elastic body such as styrene foam, sponge, foamed polyethylene or the like, rubber or the like is interposed between the pressure receiving plate and the slope to reduce unevenness on the slope. Absorption is performed by the deformation. As described above, by absorbing the unevenness of the slope by the elastic body, the pressure from the pressure receiving plate can be evenly distributed to the slope.
【０００６】しかしながら、弾性体が比較的に柔軟な場
合には、アンカー材の緊張によって、斜面の地滑り等を
防止し得る十分な圧力を付与することができないおそれ
があり、また、アンカー材の緊張に長時間かかるおそれ
がある。これに対して，弾性体が硬質の場合には、斜面
の不陸を十分に吸収することができず、受圧板による圧
力を斜面に均等に分散させることができないおそれがあ
る。しかも、受圧板と斜面との間に介在された弾性体
は、長期にわたる圧縮クリープによって変形し、アンカ
ー材の緊張状態が弛むおそれもある。However, when the elastic body is relatively flexible, there is a possibility that the tension of the anchor material cannot apply sufficient pressure to prevent landslides on slopes, etc. May take a long time. On the other hand, when the elastic body is hard, the unevenness of the slope cannot be sufficiently absorbed, and the pressure from the pressure receiving plate may not be evenly distributed on the slope. In addition, the elastic body interposed between the pressure receiving plate and the slope may be deformed by long-term compression creep, and the tension of the anchor material may be loosened.
【０００７】また、受圧板と斜面との間に、モルタル等
を充填して、斜面の不陸を吸収することも行なわれてい
る。しかしながら、この場合には、モルタル等の配合、
注入を現場にて実施する必要があり、短期間にて施行す
ることが容易でなく、また、打設が広域となるので、経
済性が損なわれる。しかも、モルタル等は斜面に沿って
流動するために、斜面と受圧板との間の全体にわたっ
て、モルタル等を完全に充填することは容易ではないと
いう問題もある。Further, mortar or the like is filled between the pressure receiving plate and the slope to absorb unevenness on the slope. However, in this case, blending of mortar and the like,
It is necessary to carry out the injection at the site, it is not easy to carry out the injection in a short period of time, and since the casting is performed over a wide area, the economic efficiency is impaired. In addition, since the mortar flows along the slope, it is not easy to completely fill the mortar or the like over the entire space between the slope and the pressure receiving plate.
【０００８】また、特開平９−２４２０１７号公報に
は、受圧板の中央部と斜面との間に適当なスペーサーを
設けて、受圧板と斜面との間におけるスペーサーの周囲
にのみ、モルタル等を充填することが行なわれている。
この場合には、受圧板の中央と斜面との間におけるスペ
ーサーが配置された部分には、モルタル等を充填する必
要がなく、モルタル等の充填作業は、比較的に容易にな
る。しかしながら、この場合にも、斜面に沿ってモルタ
ルが流動するために、その充填作業は、必ずしも容易で
はない。In Japanese Patent Application Laid-Open No. 9-242017, an appropriate spacer is provided between the central portion of the pressure receiving plate and the slope, and mortar or the like is provided only around the spacer between the pressure receiving plate and the slope. Filling has been done.
In this case, it is not necessary to fill the mortar or the like into the portion where the spacer is disposed between the center of the pressure receiving plate and the slope, and the mortar or the like is relatively easily filled. However, also in this case, since the mortar flows along the slope, the filling operation is not always easy.
【０００９】本発明は、このような問題を解決するもの
であり、その目的は、斜面の不陸を確実に吸収すること
ができるため、受圧板から斜面に加わる圧力を均等に分
散させることができ、しかも、受圧板に局所的な応力集
中が発生するおそれがなく、長期にわたって斜面を安定
化することができ、さらに、現場での作業がきわめて容
易なグラウンドアンカー工法、及び、そのグラウンドア
ンカー工法に使用される受圧板支持材、さらには、この
受圧板支持材を強度性、耐候性、耐水性等について補強
する構成を提供することにある。The present invention has been made to solve such a problem, and an object of the present invention is to uniformly disperse the pressure applied from the pressure receiving plate to the slope because the unevenness of the slope can be reliably absorbed. The ground anchor method and the ground anchor method that can stabilize the slope for a long period of time without any local stress concentration on the pressure receiving plate. Another object of the present invention is to provide a pressure-receiving plate supporting material used in the present invention and a structure for reinforcing the pressure-receiving plate supporting material with respect to strength, weather resistance, water resistance and the like.
【００１０】[0010]
【課題を解決するための手段】上記した目的を達成する
ため、本発明のグラウンドアンカー工法は、安定地盤に
一方の端部が固定されて他方の端部が斜面から突出する
ようにアンカー材が配置されて、斜面から突出したアン
カー材の端部に、斜面に沿って配置された受圧板が取り
付けられて、受圧板が斜面に圧接されることによりアン
カー材が緊張状態とされるグラウンドアンカー工法であ
って、適当な大きさの木質繊維材が混入され半硬化状態
で強制乾燥されたセメント成形体によって構成された受
圧板支持材を斜面と受圧板との間に配置して、アンカー
材を緊張状態とするようにしたことを特徴とする。In order to achieve the above-mentioned object, the ground anchor method according to the present invention employs an anchor material in which one end is fixed to a stable ground and the other end protrudes from a slope. A ground anchor method in which a pressure receiving plate disposed along the slope is attached to an end of the anchor material that is disposed and protrudes from the slope, and the pressure receiving plate is pressed against the slope to make the anchor material tensioned. A pressure receiving plate supporting material composed of a cement molded body mixed with an appropriately sized wood fiber material and forcibly dried in a semi-cured state is arranged between the slope and the pressure receiving plate, and the anchor material is removed. It is characterized by a tension state.
【００１１】また、本発明のグラウンドアンカー工法に
は、アクリル共重合樹脂エマルジョンの加水処理液にポ
ルトランドセメントを混合してなる補強処理剤によっ
て、外表面がコートされた受圧板支持材を斜面と受圧板
との間に配置する構成が含まれる。Further, in the ground anchor method of the present invention, the pressure-receiving plate supporting material whose outer surface is coated with a reinforcing agent obtained by mixing Portland cement with a hydrotreating solution of an acrylic copolymer resin emulsion is used to form a pressure-receiving plate on a slope. A configuration to be disposed between the plate and the board is included.
【００１２】また、本発明の受圧板支持材は、安定地盤
に一方の端部が固定されて他方の端部が斜面から突出す
るようにアンカー材が配置されて、斜面から突出したア
ンカー材の端部に、斜面に沿って配置された受圧板が取
り付けられて、受圧板が斜面に圧接されることによりア
ンカー材が緊張状態とされるグラウンドアンカー工法に
おいて、斜面と受圧板との間に配置される受圧板支持材
であって、適当な大きさの木質繊維材が混入されて強制
乾燥された半硬化状態のセメント成形体によって構成さ
れていることを特徴とする。[0012] Further, the pressure receiving plate support member of the present invention is arranged such that the anchor member is disposed such that one end is fixed to the stable ground and the other end protrudes from the slope, and the anchor member protrudes from the slope. At the end, a pressure receiving plate arranged along the slope is attached, and in the ground anchor construction method in which the anchor material is tensioned by pressing the pressure receiving plate against the slope, it is disposed between the slope and the pressure receiving plate. A pressure-receiving plate supporting material, characterized in that it is formed of a semi-hardened cement molded body in which a wood fiber material of an appropriate size is mixed and forcibly dried.
【００１３】また、本発明の受圧板支持材には、適当な
大きさの木質繊維材が混入されて強制乾燥された半硬化
状態のセメント成形体の外表面に、アクリル共重合樹脂
エマルジョンの加水処理液にポルトランドセメントを混
合してなる補強処理剤をコートしてなる構成が含まれ
る。[0013] The pressure-receiving plate supporting material of the present invention is prepared by adding an acrylic copolymer resin emulsion to the outer surface of a semi-cured cement molded body which is mixed with an appropriate size of a wood fiber material and forcibly dried. The composition includes a treatment liquid coated with a reinforcing treatment agent obtained by mixing Portland cement.
【００１４】[0014]
【発明の実施の形態】以下、本発明の実施の形態を、図
面に基づいて説明する。図１は、本発明の受圧板支持材
を使用したグラウンドアンカー工法の実施状態を示す断
面図である。傾斜地盤２０では、安定地盤２２に沿った
滑り面２４に沿って、斜面２１の近傍部分２３が地滑り
あるいは崩壊するおそれがあり、このような地滑り、崩
壊等を防止するために、グラウンドアンカー工法が実施
される。Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a cross-sectional view showing an embodiment of a ground anchor method using a pressure receiving plate support of the present invention. In the sloping ground 20, along the sliding surface 24 along the stable ground 22, there is a possibility that the portion 23 near the slope 21 may landslide or collapse. In order to prevent such landslide, collapse, etc., the ground anchor method is used. Will be implemented.
【００１５】本発明のグラウンドアンカー工法では、ま
ず、傾斜地盤２０における斜面２１から滑り面２４を越
えて安定地盤２２に達する掘削孔２５が形成され、この
掘削孔２５内にＰＣ鋼線等のアンカー材１２が挿入され
る。そして、安定地盤２２内に位置するアンカー材１２
の基端部が、セメント等のグラウト材２６によって、安
定地盤２２に固定される。アンカー材１２の先端部は、
掘削孔２５内に挿通して、斜面２１から上方に適当な長
さにわたって突出されている。In the ground anchor method of the present invention, first, an excavation hole 25 is formed from the slope 21 of the sloped ground 20 to the stable ground 22 over the sliding surface 24. In the excavation hole 25, an anchor such as a PC steel wire is formed. The material 12 is inserted. And the anchor material 12 located in the stable ground 22
Is fixed to the stable ground 22 by a grout material 26 such as cement. The tip of the anchor material 12
It penetrates the excavation hole 25 and protrudes upward from the slope 21 over an appropriate length.
【００１６】アンカー材１２の先端部が突出される斜面
２１には、本発明の受圧板支持材１１が配置されてい
る。受圧板支持材１１は、ほぼ受圧板の最下側と相似形
もしくは同形状の平板状に構成されており、この受圧板
支持材１１上に、複数の板材１３ａを、上下方向に積み
重ねられて構成された受圧板１３が配置されている。ま
た、受圧板１３を構成する各板材１３ａは、それぞれ繊
維強化プラスチックによって、ほぼ正方形もしくはクロ
ス状に構成されており、最下側に配置された板材１３ａ
の正方形の面積が最も大きく、上側になるにつれて各板
材１３ａの正方形の面積が、順次、一回りずつ小さくな
っている。The pressure receiving plate support member 11 of the present invention is disposed on the slope 21 from which the distal end of the anchor member 12 protrudes. The pressure receiving plate support member 11 is formed in a flat plate shape similar to or the same as the lowermost side of the pressure receiving plate, and a plurality of plate members 13a are vertically stacked on the pressure receiving plate support member 11. The configured pressure receiving plate 13 is arranged. Each of the plate members 13a constituting the pressure receiving plate 13 is formed in a substantially square or cross shape by a fiber reinforced plastic, and the plate member 13a disposed at the lowermost side is formed.
The area of the square is largest, and the area of the square of each of the plate members 13a sequentially decreases one by one toward the upper side.
【００１７】最下側の板材１３ａと斜面２１との間に配
置される受圧板支持材１１は、最下側の板材１３ａの正
方形の面積とほぼ同形状をしている。上下方向に積み重
ねられた受圧板支持材１１および受圧板１３の各板材１
３ａは、それぞれが同心状態であって、しかも、それぞ
れの各コーナー部同士が上下方向に整合状態で並んだピ
ラミッド状にそれぞれ配置されている。The pressure receiving plate supporting member 11 arranged between the lowermost plate 13a and the slope 21 has substantially the same shape as the square area of the lowermost plate 13a. Each plate member 1 of the pressure receiving plate support member 11 and the pressure receiving plate 13 stacked in the vertical direction
3a are concentrically arranged, and are arranged in a pyramid shape in which respective corner portions are aligned in the up-down direction.
【００１８】受圧板支持材１１および受圧板１３の各板
材１３ａにおける中心部には、貫通孔がそれぞれ設けら
れており、斜面２１から突出したアンカー材２１の先端
部が、受圧板支持材１１および受圧板１３の各板材１３
ａに設けられた貫通孔をそれぞれ挿通している。そし
て、アンカー材１２の先端部は、最上部に配置された板
材１３ａから上方に突出している。At the center of each of the pressure receiving plate support 11 and the pressure receiving plate 13 in each plate 13a, a through hole is provided, and the distal end of the anchor 21 protruding from the slope 21 is connected to the pressure receiving plate support 11 and Each plate 13 of the pressure receiving plate 13
a respectively. The distal end of the anchor member 12 protrudes upward from the plate member 13a arranged at the top.
【００１９】受圧板１３から突出したアンカー材１２の
先端部には、スペーサー１４を介して、ナット部材１５
がネジ結合されている。At the distal end of the anchor member 12 protruding from the pressure receiving plate 13, a nut member 15 is inserted via a spacer 14.
Are screwed together.
【００２０】受圧板支持材１１は、間伐材等によって数
ｃｍ〜数十ｃｍ程度のフレーク状とされた木質繊維材が
混合され、これが無機質材によって置換され、これにセ
メントが含浸された成形体によって構成されている。こ
のセメント含浸成形体によって構成された受圧板支持材
１１は、水分が強制的に除去されることにより、セメン
ト全体の水和反応が完全に終了していない状態となって
いる。The pressure receiving plate supporting material 11 is formed by mixing a flake-like wood fiber material of several cm to several tens cm with a thinning material or the like, replacing it with an inorganic material, and impregnating it with cement. It is constituted by. The pressure-receiving plate supporting material 11 constituted by the cement-impregnated molded body is in a state in which the hydration reaction of the entire cement has not been completely completed due to the forcible removal of water.
【００２１】この受圧板支持材１１は、例えば、次のよ
うに製造される。まず、セメントの硬化を促進するため
の石灰を、セメント５０〜６０重量部に対して４〜２６
重量部程度を混合し、これに塩化マグネシウム１〜５ボ
ーメ程度及び水を混合して混練する。この場合、塩化マ
グネシウムは、後に混入される木質繊維材を無機化させ
るとともに、セメントとの結合を促進させるための無機
置換材料としての無機質材として機能する。The pressure receiving plate supporting member 11 is manufactured, for example, as follows. First, lime for accelerating the hardening of cement is added to 4-26 parts by weight of 50-60 parts by weight of cement.
About 1 part by weight is mixed, and about 1 to 5 Baume of magnesium chloride and water are mixed and kneaded. In this case, the magnesium chloride functions as an inorganic material as an inorganic replacement material for promoting the bonding with the cement as well as mineralizing the wood fiber material mixed later.
【００２２】また、セメント、石灰、塩化マグネシウム
及び水の混練によってセメントスラリーが得られると、
このセメントスラリーに対して、例えば、間伐材のフレ
ーク状材を数ｃｍ程度とした木質繊維材を２４〜３６重
量％程度投入して混練した後に、これを所定の枠内に投
入して軽くプレス成形し、所定の大きさの平板状に成形
する。平板状に成形されたセメント成形体は、その後、
適当な時間にわたって養生された後に、オーブンにて、
例えば、８０℃で、数時間程度にわたって熱風にさらす
ことにより、強制乾燥させる。これにより、本発明の受
圧板支持材１１が得られる。When a cement slurry is obtained by kneading cement, lime, magnesium chloride and water,
To this cement slurry, for example, about 24-36% by weight of a wood fiber material in which the flake-like material of the thinned wood is about several centimeters is added and kneaded, and then this is put into a predetermined frame and lightly pressed. It is formed into a flat plate of a predetermined size. The cement molded body molded into a flat plate is then
After curing for an appropriate time, in an oven,
For example, it is forcibly dried by exposing it to hot air at 80 ° C. for several hours. Thereby, the pressure receiving plate support member 11 of the present invention is obtained.
【００２３】このようにして得られた受圧板支持材１１
は、強制的乾燥により水分が除去されて半硬化状態とさ
れているため、セメントの水和反応が完全に終了するこ
となく途中で停止した状態となっている。The pressure receiving plate supporting member 11 thus obtained
Is in a semi-hardened state by removing water by forced drying, and is in a state of being stopped halfway without complete termination of the hydration reaction of the cement.
【００２４】従って、このようにして得られた受圧板支
持材１１は、比重が０．１５〜０．５０程度であって、
その厚みは当初不陸の大きさの約１．７倍であるが、不
陸の大きさが５０ｍｍのとき、その厚みは８５ｍｍ、不
陸の大きさが１００ｍｍのとき、その厚みは１７０ｍｍ
となり、また、一片の長さが適当な大きさの平板状に構
成されている。通常の場合、受圧板支持材１１は、一片
の長さが５０〜１００ｃｍの正方形状に構成され、この
ときには、その１枚当たりの全体重量は、２０〜５０ｋ
ｇ程度となり、１〜２名の一般の作業員によっても容易
に運搬することが可能である。Therefore, the pressure receiving plate support 11 thus obtained has a specific gravity of about 0.15 to 0.50,
Its thickness is initially about 1.7 times the size of the unevenness, but when the size of the unevenness is 50 mm, the thickness is 85 mm, and when the size of the unevenness is 100 mm, the thickness is 170 mm.
And the length of one piece is a flat plate having an appropriate size. In a normal case, the pressure receiving plate support member 11 is formed in a square shape with a length of one piece of 50 to 100 cm. At this time, the total weight per piece is 20 to 50 k.
g, and can be easily transported even by one or two ordinary workers.
【００２５】このような受圧板支持材１１は、中心部に
貫通孔が形成された状態で、グラウンドアンカー工法に
使用される。グラウンドアンカー工法では、傾斜地盤２
０にアンカー材１２が所定の状態に配置されて、斜面２
１からアンカー材１２の先端部が突出された状態になる
と、受圧板支持材１１の貫通孔内に斜面２１から突出し
たアンカー材１２の先端部を挿入して、受圧板支持材１
１を斜面２１上に配置する。その後、この受圧板支持材
１１上に、適当な枚数の板材１３ａが積み重ねられた受
圧板１３とされる。各板材１３ａの中央部に設けられた
貫通孔内に、アンカー材１２の先端部をそれぞれ挿入し
て、受圧板支持材１１上に配置される。そして、受圧板
１３から突出したアンカー材１２の先端部に、スペーサ
ー１４が嵌合された後に、ナット部材１５がネジ結合さ
れる。Such a pressure receiving plate support member 11 is used in a ground anchor method with a through hole formed in the center. In the ground anchor method, slope ground 2
0, the anchor material 12 is arranged in a predetermined state, and the slope 2
When the distal end of the anchor 12 protrudes from the supporting member 1, the distal end of the anchor 12 protruding from the slope 21 is inserted into the through hole of the pressure receiving plate support 11, and the pressure receiving plate support 1 is inserted.
1 is placed on the slope 21. Thereafter, the pressure receiving plate 13 is formed by stacking an appropriate number of plate members 13a on the pressure receiving plate support member 11. The distal end of the anchor member 12 is inserted into a through hole provided at the center of each plate member 13a, and is disposed on the pressure receiving plate support member 11. Then, after the spacer 14 is fitted to the distal end of the anchor member 12 protruding from the pressure receiving plate 13, the nut member 15 is screwed.
【００２６】なお、受圧板支持材１１は、その上に積み
重ねられる受圧板１３に対しては、受圧板１３に設けら
れた係合部等によって予め係合状態として、アンカー材
１２の先端部に嵌合させるようにしてもよいし、また、
くさびによる固定等一般的な固定構成によることができ
る。The pressure receiving plate supporting member 11 is brought into an engaged state with the pressure receiving plate 13 stacked thereon by an engaging portion or the like provided on the pressure receiving plate 13 so that the pressure receiving plate supporting member 11 May be fitted, or
A general fixing structure such as fixing by a wedge can be used.
【００２７】このようにして、アンカー材１２の先端部
がナット部材等によって固定される直前に、受圧板支持
材１１に対して、一様にしかも十分に給水する。この
際、受圧板支持材１１は、前記したように半硬化状態と
なっているため、この給水によって水分を吸水して水和
反応を再開することになる。但し、この給水操作につい
ては、斜面２１からの湧き水が発生していたり、あるい
は雨水が接触し易い地盤である場合には、特に必要では
ない。In this way, just before the tip of the anchor member 12 is fixed by the nut member or the like, water is uniformly and sufficiently supplied to the pressure receiving plate support member 11. At this time, since the pressure receiving plate support member 11 is in a semi-cured state as described above, the water supply absorbs water to restart the hydration reaction. However, this water supply operation is not particularly necessary when spring water from the slope 21 is generated or when the ground is easily contacted by rainwater.
【００２８】その後、ナット部材１５が締め付けられ
て、基端部が安定地盤２２にグラウト材２６によって固
定されたアンカー材１２が緊張される。受圧板支持材１
１には、このアンカー材１２の緊張によって、３×１０
4 〜６．２×１０5 Ｐａ程度の圧力が付与される。Thereafter, the nut member 15 is tightened, and the anchor member 12 whose base end is fixed to the stable ground 22 by the grout material 26 is tensioned. Pressure plate support 1
In FIG. 1, 3 × 10
A pressure of about 4 to 6.2 × 10 5 Pa is applied.
【００２９】このようにアンカー材１２が緊張状態とな
ると、斜面２１上に載置された受圧板支持材１１は、板
材１３ａの最下面によって、斜面２１に圧接される。こ
の場合、吸水によってセメントの水和反応が再開された
受圧板支持材１１は、なおも完全に硬化していないこと
によって強度が不足した状態にあり、受圧板１３による
圧力によって斜面２１に圧接された部分が、斜面２１の
不陸に沿うように圧壊又は繊維弾力によって、不陸吸収
される。これにより、斜面２１の不陸が、圧壊された受
圧板支持材１１によって、または受圧板支持材１１の繊
維弾力によって埋められた状態になる。When the anchor member 12 is in a tension state as described above, the pressure receiving plate supporting member 11 placed on the slope 21 is pressed against the slope 21 by the lowermost surface of the plate 13a. In this case, the pressure receiving plate support member 11 in which the hydration reaction of the cement is restarted by the water absorption is in a state of insufficient strength because it has not yet completely hardened, and is pressed against the slope 21 by the pressure of the pressure receiving plate 13. The broken portion is absorbed by the crushing or the fiber elasticity along the unevenness of the slope 21. As a result, the unevenness of the slope 21 is buried by the crushed pressure receiving plate support 11 or by the fiber elasticity of the pressure receiving plate support 11.
【００３０】このように、斜面２１の近傍部分が斜面２
１に沿って圧壊されると、圧壊部分に混入された木質繊
維は、連続状態になるように緊密化される。As described above, the portion near the slope 21 is the slope 2
When crushed along 1, the wood fibers mixed into the crushed portion are compacted so as to be in a continuous state.
【００３１】このような状態で、給水された受圧板支持
材１１は、水和反応を再開し、硬化する。受圧板支持材
１１は、斜面２１の不陸を埋めた状態で硬化しており、
しかも、斜面２１の近傍部にて、木質繊維材が連続状態
となるように緊密化されているため、斜面２１からの地
盤反力が、その連続部分によって、均一な等分布荷重と
される。従って、受圧板支持材１１に対する地盤反力に
よって、受圧板支持材１１に大きな力が加わるおそれが
ない。また、硬化した受圧板支持材１１は、長期圧縮ク
リープが極小化するようにでき、受圧板１３からの圧力
を、長期にわたって、斜面２１に均等に分散させること
ができる。In this state, the supplied pressure receiving plate supporting material 11 resumes the hydration reaction and hardens. The pressure receiving plate support member 11 is hardened in a state where the unevenness of the slope 21 is buried.
In addition, since the wood fiber material is tightly packed in the vicinity of the slope 21 so as to be continuous, the ground reaction force from the slope 21 is uniformly distributed by the continuous portion. Therefore, there is no possibility that a large force is applied to the pressure receiving plate support 11 due to the ground reaction force against the pressure receiving plate support 11. Further, the hardened pressure receiving plate supporting material 11 can minimize long-term compression creep, and can evenly distribute the pressure from the pressure receiving plate 13 to the slope 21 over a long period of time.
【００３２】また、受圧板支持材１１内に混入された木
質繊維材は、塩化マグネシウムによって無機質化されて
いるため、腐敗するおそれがない。また、受圧板支持材
１１は、ＪＩＳ規格のＡ５４０４の難燃木毛セメント板
に準拠しており、不燃性の性状となっている。The wood fiber material mixed in the pressure receiving plate supporting member 11 is mineralized by magnesium chloride, so that there is no possibility of decay. Further, the pressure receiving plate support 11 conforms to a flame-retardant wood wool cement board of A5404 of JIS standard, and has a nonflammable property.
【００３３】なお、受圧板支持材１１における木質繊維
材の量が増加すると、受圧板支持材１１の比重が大きく
なり、地盤反力と受圧板１３とによる圧縮応力によっ
て、受圧板支持材１１が変形したり、圧壊することによ
る斜面２１の不陸を吸収する機能が低下するおそれがあ
る。このため、受圧板支持材１１の比重が０．１５〜
０．５０程度になるように、木質繊維材の量は設定され
る。また、木質繊維材の長さを短くすることによって、
その量を増加させたのと同様の効果を発揮させることが
できるので、受圧板支持材１１の比重調節には、その量
と長さと向きを調和させることが好ましい。When the amount of the wood fiber material in the pressure receiving plate supporting member 11 increases, the specific gravity of the pressure receiving plate supporting material 11 increases, and the pressure receiving plate supporting material 11 is compressed by the ground reaction force and the compressive stress generated by the pressure receiving plate 13. There is a possibility that the function of absorbing the unevenness of the slope 21 due to deformation or crushing may be reduced. Therefore, the specific gravity of the pressure receiving plate supporting member 11 is 0.15 to 0.15.
The amount of the wood fiber material is set so as to be about 0.50. Also, by shortening the length of wood fiber material,
Since the same effect as increasing the amount can be exerted, it is preferable to adjust the amount, length, and direction of the pressure receiving plate support member 11 in adjusting the specific gravity.
【００３４】また、上記したグラウンドアンカー工法に
おいては、使用する受圧板支持材１１の外表面に、アク
リル共重合樹脂エマルジョンの加水処理液にポルトラン
ドセメントを混合してなる補強処理剤をコートすること
によって、この受圧板支持材１１を補強することができ
る。In the ground anchor method described above, the outer surface of the pressure-receiving plate support 11 to be used is coated with a reinforcing agent obtained by mixing Portland cement with a hydrotreating solution of an acrylic copolymer resin emulsion. The pressure receiving plate support 11 can be reinforced.
【００３５】この補強処理剤が受圧板支持材１１の外表
面にコートされた構成において、補強処理剤中の固形分
が、受圧板支持材１１中の木質繊維材で構成される部分
に、アクリル共重合樹脂を介して強力に付着された状態
となる。従って、受圧板支持材１１自体の吸水性は損な
われない。また、この補強処理剤のコート構成におい
て、アクリル共重合樹脂自体の性能に基づいて、受圧板
支持材１１について所要硬度の補強作用が得られると共
に、環境暴露下にあっても初期の膜強度が維持される等
の耐候性や、水と接触する状態にあっても変質化しない
等の耐水性等の性能を受圧板支持材１１に保持させるこ
とができる。In the structure in which the reinforcing agent is coated on the outer surface of the pressure-receiving plate supporting member 11, the solid content in the reinforcing agent is applied to the portion of the pressure-receiving plate supporting member 11 composed of the wood fiber material by acrylic. It is in a state of being strongly attached via the copolymer resin. Therefore, the water absorption of the pressure receiving plate support 11 itself is not impaired. In addition, in the coating composition of the reinforcing agent, the pressure-receiving plate supporting member 11 can obtain a required hardness reinforcing action based on the performance of the acrylic copolymer resin itself, and the initial film strength can be improved even under environmental exposure. The pressure-receiving plate supporting member 11 can maintain performance such as weather resistance such as being maintained and water resistance such that it is not deteriorated even when in contact with water.
【００３６】上記した補強処理剤については、受圧板支
持材１１の外表面へのコート作業が容易なスラリー性状
のものとして調製するのが好ましく、この補強処理剤の
スラリーの粘度を１０００ｃｐｓ〜５０００ｃｐｓの範
囲に調整することにより、リキッドスプレーガン、スラ
リースプレーガン、低圧モルタルガン等の器具を利用す
ることも可能である。The above-mentioned reinforcing agent is preferably prepared as a slurry having a property of a slurry that facilitates the coating operation on the outer surface of the pressure-receiving plate supporting member 11. The viscosity of the slurry of the reinforcing agent is 1000 cps to 5000 cps. By adjusting the range, it is also possible to use instruments such as a liquid spray gun, a slurry spray gun, and a low-pressure mortar gun.
【００３７】このような粘度範囲のスラリー性状の補強
処理剤は、例えば、アクリル共重合樹脂エマルジョンと
水とを重量部比で約１：５の割合で混合し、これに０．
５倍重量乃至２倍重量のポルトランドセメントを混ぜ合
わせることによって得ることができる。なお、上例の場
合、ポルトランドセメントの量が０．５倍重量未満であ
ると、補強強度が不十分となり、また、２倍重量を超え
ると、重量が大きくなって取り扱いが困難となる。For the slurry-type reinforcing agent having such a viscosity range, for example, an acrylic copolymer resin emulsion and water are mixed at a ratio of about 1: 5 by weight and 0.1% by weight.
It can be obtained by mixing 5 to 2 times weight of Portland cement. In the case of the above example, if the amount of Portland cement is less than 0.5 times the weight, the reinforcing strength becomes insufficient, and if it exceeds 2 times the weight, the weight becomes large and handling becomes difficult.
【００３８】また、この補強処理剤のコート膜の厚さに
ついては、受圧板支持材１１について運搬時や敷設作業
時に崩壊せず、雨水等の流水によって洗掘等されない程
度の補強強度が得られる共に、重量的に取り扱い上支障
を与えない程度であれば足りる。また、この補強強度を
受圧板支持材１１について均一にするため、受圧板支持
材１１の外表面に補強処理剤を均等にコートすることが
好ましい。In addition, the thickness of the coating film of the reinforcing agent is such that the pressure receiving plate support member 11 does not collapse during transportation or laying work, and has a reinforcing strength that is not scoured by running water such as rainwater. In both cases, it is sufficient that the weight does not cause any trouble in handling. In addition, in order to make the reinforcing strength uniform for the pressure receiving plate support member 11, it is preferable to uniformly coat the outer surface of the pressure receiving plate support member 11 with a reinforcing agent.
【００３９】[0039]
【実施例】（実施例１）ターンテーブル面上に専用パレ
ットを配置し、この専用パレット上にスペーサー（８０
ｃｍ角の正方形状で、厚さ５ｃｍ）と受圧板支持材（１
００ｃｍ角の正方形状で、厚さ１７０ｍｍ）とを交互に
複数積み重ねた状態で配置した。この場合、受圧板支持
材の４つの端縁部から１０ｃｍの範囲の平面部分がスペ
ーサーから露出した状態となっている。(Embodiment 1) A dedicated pallet is arranged on a turntable surface, and a spacer (80) is placed on the dedicated pallet.
cm square, 5 cm thick) and pressure plate support (1
(A square shape of 00 cm square and a thickness of 170 mm) were alternately stacked. In this case, a plane portion within a range of 10 cm from the four edges of the pressure receiving plate support is exposed from the spacer.
【００４０】また、アクリル共重合樹脂エマルジョン
（ナクリリック２１５−４２８０、日本エヌエスシー社
製）を５倍重量の水道水で希釈処理液とし、この希釈処
理液１重量部にポルトランドセメントを０．５重量部の
割合で混合分散させて、これを補強処理剤とした。この
補強処理剤をスラリースプレーガンに充填して、これを
ターンテーブルを回しながら、前記配置した受圧板支持
材の外表面に均等に吹き付けた。この吹き付け作業によ
って、受圧板支持材についてその外周面及び各端縁部か
ら１０ｃｍの範囲の外平面部に補強処理剤がコートされ
た。この際、補強処理剤のコート量は、受圧板支持材１
枚当り約２ｋｇであった。この補強処理剤のコートから
２４時間、常温下で放置して加工を完了した。Also, an acrylic copolymer resin emulsion (Nacrylic 215-4280, manufactured by Nippon NS Co., Ltd.) was diluted with 5 times the weight of tap water, and 0.5 parts by weight of Portland cement was added to 1 part by weight of the diluted liquid. Parts and mixed and dispersed to obtain a reinforcing agent. The reinforcing agent was charged into a slurry spray gun, which was evenly sprayed onto the outer surface of the pressure receiving plate support member while rotating the turntable. As a result of this spraying operation, the reinforcing agent was coated on the outer peripheral surface of the pressure receiving plate support member and the outer flat surface within a range of 10 cm from each edge. At this time, the coating amount of the reinforcing treatment agent is
The weight was about 2 kg per sheet. The processing was completed by leaving at room temperature for 24 hours from the coating of the reinforcing agent.
【００４１】このコート処理された受圧板支持材は、一
人の作業員が運搬できる重量（約３０ｋｇ）であり、運
搬時や敷設作業時において崩壊しない補強強度を保持
し、また、所要の吸水性を有すると共に、設置から１年
間以上経過後においても、０℃以下の低温状態を含む広
い温度範囲の環境条件下でも変質せず、しかも雨水や湧
き水によっても受圧板支持材の表面部分は洗掘されるこ
とはない等、耐候性、耐水性等について良好なものであ
った。The coated pressure receiving plate supporting material has a weight (approximately 30 kg) that can be carried by one worker, has a reinforcing strength that does not collapse during transportation or laying work, and has a required water absorption property. It does not deteriorate even after one year or more after installation, even under environmental conditions in a wide temperature range including a low temperature condition of 0 ° C or less, and the surface of the pressure receiving plate support is scoured even by rainwater or spring water. It was good in weather resistance, water resistance, etc.
【００４２】（実施例２）アクリル共重合樹脂エマルジ
ョン（ナクリリック２１５−４２８０、日本エヌエスシ
ー社製）を９倍重量の水道水で希釈処理液とし、この希
釈処理液１重量部にポルトランドセメントを０．５重量
部の割合で混合分散させて、これを補強処理剤とした。
この補強処理剤をスラリースプレーガンに充填して、こ
れを実施例１と同様に配置した受圧板支持材に対し、実
施例１の場合と同一の条件で、受圧板支持材の外表面に
均等に吹き付けた。この吹き付け作業によって、受圧板
支持材についてその外周面及び各端縁部から１０ｃｍの
範囲の外平面部に補強処理剤がコートされた。この際、
補強処理剤のコート量は、受圧板支持材１枚当り約２ｋ
ｇであった。この補強処理剤のコートから２４時間、常
温下で放置して加工を完了した。Example 2 An acrylic copolymer resin emulsion (Nacrylic 215-4280, manufactured by Nippon NS Co., Ltd.) was diluted with a 9-fold weight of tap water, and Portland cement was added to 1 part by weight of the diluted liquid. The mixture was mixed and dispersed at a ratio of 0.5 parts by weight to obtain a reinforcing agent.
This reinforcing agent is filled in a slurry spray gun, and is applied to the outer surface of the pressure-receiving plate support under the same conditions as in Example 1 against the pressure-receiving plate support arranged in the same manner as in Example 1. Sprayed. As a result of this spraying operation, the reinforcing agent was coated on the outer peripheral surface of the pressure receiving plate support member and the outer flat surface within a range of 10 cm from each edge. On this occasion,
The coating amount of the reinforcing agent is about 2k per support plate
g. The processing was completed by leaving at room temperature for 24 hours from the coating of the reinforcing agent.
【００４３】このコート処理された受圧板支持材は、一
人の作業員が運搬できる重量（約３０ｋｇ）であり、運
搬時、敷設作業時において崩壊しない補強強度を保持
し、また、所要の吸水性を有すると共に、設置から１年
間以上経過後においても、０℃以下の低温状態を含む広
い温度範囲の環境条件下でも変質せず、しかも雨水や湧
き水によっても受圧板支持材の表面部分は洗掘されるこ
とはない等、耐候性、耐水性等について良好なものであ
った。The coated pressure receiving plate supporting material has a weight (about 30 kg) that can be carried by one worker, retains a reinforcing strength that does not collapse during transportation or laying work, and has a required water absorption property. It does not deteriorate even after one year or more after installation, even under environmental conditions in a wide temperature range including a low temperature condition of 0 ° C or less, and the surface of the pressure receiving plate support is scoured even by rainwater or spring water. It was good in weather resistance, water resistance, etc.
【００４４】[0044]
【発明の効果】上述したように本発明は構成されるか
ら、次のような効果が発揮される。まず、本発明のグラ
ウンドアンカー工法は、安定地盤に一方の端部が固定さ
れて他方の端部が斜面から突出するようにアンカー材が
配置されて、斜面から突出したアンカー材の端部に、斜
面に沿って配置された受圧板が取り付けられて、受圧板
が斜面に圧接されることによりアンカー材が緊張状態と
されるグラウンドアンカー工法であって、適当な大きさ
の木質繊維材が混入され強制乾燥された半硬化状態のセ
メント成形体によって構成された受圧板支持材を斜面と
受圧板との間に配置して、アンカー材を緊張状態とする
ようにしたので、アンカー材を緊張状態にするという簡
単な作業によって、受圧板支持材が斜面の不陸を確実に
吸収した状態になり、受圧板から斜面に加わる圧力を均
一に分散させることができるとともに、受圧板に大きな
局所的な応力集中が発生するおそれが小さい。しかも、
吸水した受圧板支持材は、設置後において、水和反応を
再開して硬化するため、大きな長期圧縮クリープの発生
が極小化して、アンカー材の緊張状態が長期間に緩和さ
れることもない。その結果、傾斜地盤の斜面を長期間に
わたり確実に安定化させることができる。また、本発明
の受圧板支持材は、このようなグラウンドアンカー工法
を、各実に実施することを可能とする。As described above, since the present invention is constituted, the following effects are exhibited. First, the ground anchor method of the present invention, the anchor material is arranged such that one end is fixed to the stable ground and the other end protrudes from the slope, at the end of the anchor material protruding from the slope, A ground anchor construction method in which a pressure receiving plate arranged along the slope is attached, and the pressure receiving plate is pressed against the slope to make the anchor material in a tension state, and a wood fiber material of an appropriate size is mixed. Since the pressure receiving plate supporting material composed of the forcedly dried semi-cured cement molded body is arranged between the slope and the pressure receiving plate to make the anchor material in a tension state, the anchor material is in a tension state. The simple work that the pressure receiving plate support material surely absorbs the unevenness of the slope, the pressure applied from the pressure receiving plate to the slope can be evenly distributed, and the pressure receiving plate It is less likely to local stress concentration occurs. Moreover,
Since the pressure-bearing plate supporting material that has absorbed water resumes its hydration reaction and hardens after installation, the generation of large long-term compression creep is minimized, and the tension of the anchor material is not relaxed for a long time. As a result, the slope of the sloping ground can be reliably stabilized for a long period of time. Further, the pressure-receiving plate supporting material of the present invention enables such a ground anchor method to be actually implemented.
【００４５】また、アクリル共重合樹脂エマルジョンの
加水処理液にポルトランドセメントを混合してなる補強
処理剤により外表面がコートされた受圧板支持材を、斜
面と受圧板との間に配置するグラウンドアンカー工法に
よれば、作業性等について良好な補強強度とともに、耐
候性、耐水性等に優れた受圧板支持材によって、アンカ
ー材の緊張状態を半永久的に維持させることができる。Also, a ground anchor in which a pressure-receiving plate supporting material whose outer surface is coated with a reinforcing agent obtained by mixing Portland cement with a hydrating solution of an acrylic copolymer resin emulsion is disposed between the slope and the pressure-receiving plate. According to the construction method, the tensioned state of the anchor material can be maintained semipermanently by the pressure-receiving plate supporting material having excellent weather resistance, water resistance, and the like, as well as good reinforcement strength for workability and the like.
【図１】本発明のグラウンドアンカー工法の実施状態の
一例を示す断面図である。FIG. 1 is a cross-sectional view showing an example of an implementation state of a ground anchor method according to the present invention.
１１ 受圧板支持材 １２ アンカー材 １３ 受圧板 １４ スペーサー １５ ナット部材 ２０ 傾斜地盤 ２１ 斜面 ２２ 安定地盤 DESCRIPTION OF SYMBOLS 11 Pressure receiving plate support material 12 Anchor material 13 Pressure receiving plate 14 Spacer 15 Nut member 20 Inclined ground 21 Slope 22 Stable ground
フロントページの続き (72)発明者 東 俊司 滋賀県栗太郡栗東町野尻75 積水化学工業 株式会社内 (72)発明者 我原 長男 京都府八幡市男山美桜13−22 (72)発明者 川村 実 大阪府枚方市楠葉面取町２丁目４−５ Ｆターム(参考） 2D044 DB52 EA01 Continuing on the front page (72) Inventor Shunji Higashi 75, Nojiri, Ritto-cho, Kurita-gun, Shiga Prefecture Inside Sekisui Chemical Co., Ltd. 2-4-5 Kusuniba-metori-cho, Hirakata-shi, F-term (reference) 2D044 DB52 EA01
Claims (4)
端部が斜面から突出するようにアンカー材が配置され
て、斜面から突出したアンカー材の端部に、斜面に沿っ
て配置された受圧板が取り付けられて、受圧板が斜面に
圧接されることによりアンカー材が緊張状態とされるグ
ラウンドアンカー工法であって、適当な大きさの木質繊
維材が混入され強制乾燥された半硬化状態のセメント成
形体によって構成された受圧板支持材を斜面と受圧板と
の間に配置して、アンカー材を緊張状態とすることを特
徴とするグラウンドアンカー工法。1. An anchor material is arranged such that one end is fixed to the stable ground and the other end protrudes from the slope, and is disposed along the slope at the end of the anchor material protruding from the slope. This is a ground anchor method in which the pressure receiving plate is attached and the pressure receiving plate is pressed against the slope to make the anchor material in a tensioned state. A ground anchoring method, wherein a pressure receiving plate supporting member made of a cemented material in a hardened state is arranged between a slope and a pressure receiving plate to make an anchor material in a tension state.
理液にポルトランドセメントを混合してなる補強処理剤
によって、外表面がコートされた受圧板支持材を斜面と
受圧板との間に配置する請求項１に記載のグラウンドア
ンカー工法。2. A pressure-receiving plate supporting material having an outer surface coated with a reinforcing agent obtained by mixing Portland cement with a hydrotreating solution of an acrylic copolymer resin emulsion, is disposed between the slope and the pressure-receiving plate. 2. The ground anchor method according to 1.
端部が斜面から突出するようにアンカー材が配置され
て、斜面から突出したアンカー材の端部に、斜面に沿っ
て配置された受圧板が取り付けられて、受圧板が斜面に
圧接されることによりアンカー材が緊張状態とされるグ
ラウンドアンカー工法において、斜面と受圧板との間に
配置される受圧板支持材であって、適当な大きさの木質
繊維材が混入されて強制乾燥された半硬化状態のセメン
ト成形体によって構成されていることを特徴とする受圧
板支持材。3. An anchor material is disposed such that one end is fixed to the stable ground and the other end protrudes from the slope, and is disposed along the slope at the end of the anchor material protruding from the slope. A pressure receiving plate support member disposed between the slope and the pressure receiving plate in a ground anchor method in which the pressure receiving plate is attached and the anchor material is brought into a tensioned state by pressing the pressure receiving plate against the slope. A pressure-receiving plate supporting material, which is constituted by a semi-hardened cement molded body which is forcibly dried by mixing a wood fiber material of an appropriate size.
制乾燥された半硬化状態のセメント成形体の外表面に、
アクリル共重合樹脂エマルジョンの加水処理液にポルト
ランドセメントを混合してなる補強処理剤をコートして
なる請求項３に記載の受圧板支持材。4. An outer surface of a semi-cured cement molded body which is forcibly dried by mixing wood fiber material of an appropriate size,
The pressure-receiving plate supporting material according to claim 3, wherein a reinforcing agent obtained by mixing Portland cement with a water-treating solution of the acrylic copolymer resin emulsion is coated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32490199A JP3451045B2 (en) | 1999-03-29 | 1999-11-16 | Ground anchor method and pressure plate support |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8650099 | 1999-03-29 | ||
| JP11-86500 | 1999-03-29 | ||
| JP32490199A JP3451045B2 (en) | 1999-03-29 | 1999-11-16 | Ground anchor method and pressure plate support |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000345565A true JP2000345565A (en) | 2000-12-12 |
| JP3451045B2 JP3451045B2 (en) | 2003-09-29 |
Family
ID=26427606
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP32490199A Expired - Fee Related JP3451045B2 (en) | 1999-03-29 | 1999-11-16 | Ground anchor method and pressure plate support |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3451045B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009299337A (en) * | 2008-06-12 | 2009-12-24 | Nippon Steel & Sumikin Metal Products Co Ltd | Unevenness adjusting mat for slope stabilizing method, and slope stabilizing method |
| JP2011226181A (en) * | 2010-04-21 | 2011-11-10 | Nissin Sangyo Co Ltd | Runoff prevention material for vegetation, vegetation method or vegetation zone method using the same, and vegetation material |
| KR101600750B1 (en) * | 2015-06-12 | 2016-03-07 | 조선대학교산학협력단 | Anchor apparatus for relaxation of tension members supplement |
| JP2017043949A (en) * | 2015-08-26 | 2017-03-02 | 国立大学法人京都大学 | Assessment device for remnant tensile force of anchorage body |
| CN112900459A (en) * | 2021-01-27 | 2021-06-04 | 洛阳理工学院 | Composite reinforcement method for soft clay side slope |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09208342A (en) * | 1996-01-29 | 1997-08-12 | Nichiee Yoshida Kk | Waterproof material for fair-faced concrete and polymer for cement admixture |
| JPH10306699A (en) * | 1997-05-08 | 1998-11-17 | Komao Miwa | Reinforcing work of ground and bag body for forming cast-in-place base seat |
-
1999
- 1999-11-16 JP JP32490199A patent/JP3451045B2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09208342A (en) * | 1996-01-29 | 1997-08-12 | Nichiee Yoshida Kk | Waterproof material for fair-faced concrete and polymer for cement admixture |
| JPH10306699A (en) * | 1997-05-08 | 1998-11-17 | Komao Miwa | Reinforcing work of ground and bag body for forming cast-in-place base seat |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009299337A (en) * | 2008-06-12 | 2009-12-24 | Nippon Steel & Sumikin Metal Products Co Ltd | Unevenness adjusting mat for slope stabilizing method, and slope stabilizing method |
| JP2011226181A (en) * | 2010-04-21 | 2011-11-10 | Nissin Sangyo Co Ltd | Runoff prevention material for vegetation, vegetation method or vegetation zone method using the same, and vegetation material |
| KR101600750B1 (en) * | 2015-06-12 | 2016-03-07 | 조선대학교산학협력단 | Anchor apparatus for relaxation of tension members supplement |
| JP2017043949A (en) * | 2015-08-26 | 2017-03-02 | 国立大学法人京都大学 | Assessment device for remnant tensile force of anchorage body |
| CN112900459A (en) * | 2021-01-27 | 2021-06-04 | 洛阳理工学院 | Composite reinforcement method for soft clay side slope |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3451045B2 (en) | 2003-09-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101744766B1 (en) | Waterproofing method using self-adhesive non-woven fabric waterproofing sheet laminated with organic and inorganic hybrid water proofing material | |
| KR101902836B1 (en) | Concrete repair and joint construction method using organic and inorganic hybrid water proofing material laminated self-adhesive seal reinforcing and waterproofing sheet | |
| JP2000345565A (en) | Ground anchor construction method and pressure- receiving plate bearing material | |
| KR101733535B1 (en) | Self-adhesive non-woven fabric waterproofing sheet laminated with organic and inorganic hybrid water proofing material and waterproofing method using the same | |
| JP3333625B2 (en) | Floor construction method | |
| JPS61196070A (en) | Water stop method of structure | |
| KR101889329B1 (en) | Self-adhesive non-woven fabric waterproofing sheet laminated with organic and inorganic hybrid water proofing material | |
| CN107201753B (en) | It is a kind of for basement or the high-pressure slip-casting blocking method of top plate of underground parking garage | |
| JP2004324285A (en) | Surface protection method for skeleton concrete | |
| KR20170108616A (en) | Hybrid water proofing structure using asphalt and non-woven fabric sheet comprising non-woven fabric connection hook-and-loop velcro fastener and the method of its construction | |
| JP2001107368A (en) | Ground anchor work method and pressure bearing plate supporting material | |
| GB2413164A (en) | Means for compensating for uneven surfaces | |
| JP3246297B2 (en) | Construction method of anticorrosion lining | |
| JP2618732B2 (en) | Mixed composition mainly composed of asphalt emulsion | |
| JP2024046413A (en) | Unevenness adjusting material | |
| JP2607327B2 (en) | Elastic floor structure | |
| KR20100122749A (en) | Grouting material and grouting method using them | |
| JP3038259U (en) | Seismic retrofit cosmetic finish coating structure | |
| JP3841533B2 (en) | Fireproof and fireproof covering structure for concrete structure and manufacturing method thereof | |
| JP2718988B2 (en) | Joint repair method | |
| JPS6026723A (en) | Protection work for slope | |
| JP3383783B2 (en) | Wall foundation structure | |
| JP2024046409A (en) | Pressure plate, and ground reinforcement method | |
| JP2002081300A (en) | Lock bolt fixing method of mountain tunnel and water stop packing therefor | |
| JP2002295023A (en) | Crack repairing method for concrete member |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |