JPH0874242A - Block for ground stabilization and consolidation - Google Patents
Block for ground stabilization and consolidationInfo
- Publication number
- JPH0874242A JPH0874242A JP23423394A JP23423394A JPH0874242A JP H0874242 A JPH0874242 A JP H0874242A JP 23423394 A JP23423394 A JP 23423394A JP 23423394 A JP23423394 A JP 23423394A JP H0874242 A JPH0874242 A JP H0874242A
- Authority
- JP
- Japan
- Prior art keywords
- block
- inverted
- ground
- vertical hole
- inverted pyramid
- 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
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
- Foundations (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、地盤安定・強化用ブロ
ックに係り、より詳細には、建築・土木の基礎工事にお
いて、地表層や軟弱地表層の軟弱地盤を安定させ、また
補強させるのに適した地盤安定・強化用ブロックに関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ground stabilizing / reinforcing block, and more particularly, to a method for stabilizing and reinforcing a soft ground on a surface layer or a soft ground layer in foundation work for construction and civil engineering. The present invention relates to a block for ground stabilization and strengthening suitable for a building.
【０００２】[0002]
【従来の技術】軟弱地盤上に、建築物や構築物を建造す
る場合、経時的変化で、その地表層に不等沈下が生じる
おそれがあるため、該地表層を安定させる必要がある。
この安定化法としては、一般的には、骨材や砂利を入れ
た後、コンクリートで該地表を固定させている。しか
し、このような方法にあっては、軟弱地盤の軟弱度合に
よっては、大量の骨材、砂利、コンクリートが必要とな
り、また杭打ち作業が必要となるため、近年では、円形
または角形の板体の底面に、一体化した独楽型胴体と軸
脚を設けた地盤安定・強化用ブロックが提案されている
（特公昭５６−５００５４号公報参照）。2. Description of the Related Art When a building or a building is constructed on soft ground, it is necessary to stabilize the surface layer because unevenness may occur on the surface layer due to a change with time.
As a stabilizing method, generally, after the aggregate or gravel is put in, the ground surface is fixed with concrete. However, in such a method, a large amount of aggregate, gravel, concrete is required depending on the degree of softness of the soft ground, and pile driving work is required. A ground stabilizing / strengthening block provided with an integrated top body and a shaft leg on the bottom surface of the base has been proposed (see Japanese Patent Publication No. 56-50054).
【０００３】この地盤安定・強化用ブロックは、地表層
や軟弱地表層の軟弱地盤に布設することで、該ブロック
の自重および上載荷重と、該ブロックの胴体、軸脚に生
じる地盤反力および摩擦抵抗力を均衡させて、地盤の不
等沈下を防止し、該地盤の安定・強化を図れる。しか
し、この地盤安定・強化用ブロックの場合、軟弱地盤に
布設した際、隣接するブロック同士が点接触状態となる
ため、ブロック表面の平坦性を取り難く、作業効率が低
下する。When the ground stabilizing / strengthening block is laid on a soft ground on a surface layer or a soft ground layer, the weight of the block and the load on the block, and the ground reaction force and friction generated on the body and axle legs of the block. By balancing the resistance, uneven settlement of the ground can be prevented, and the ground can be stabilized and strengthened. However, in the case of the ground stabilizing / reinforcing block, when the blocks are laid on soft ground, adjacent blocks are in point contact with each other, so that it is difficult to obtain flatness of the block surface and the work efficiency is reduced.
【０００４】ところで、このような点に対しては、この
ブロックの胴部を倒立角錐形にしたり（特開平２−２８
２５０３号公報参照）、このブロックの上部路盤部を角
形にしている（特公昭５５−５０５２７号公報参照）。
そして、この構成とすることによって、ブロックを敷設
した際の不安定性を軽減できる。By the way, with respect to such a point, the body of this block may be formed into an inverted pyramid shape (Japanese Patent Laid-Open No. 2-28).
No. 2503), the upper roadbed portion of this block has a square shape (see Japanese Patent Publication No. 55-50527).
With this configuration, the instability when the block is laid can be reduced.
【０００５】[0005]
【発明が解決しようとする課題】しかし、前述したよう
な地盤安定・強化用ブロックの場合、次のような課題が
ある。すなわち、 ブロックの重心がブロック上部に位置し、不安定形
状であるので、該ブロック自体を自立させることが難し
く、該ブロックの積み重ねや保管性、運搬性が低下す
る。 軟弱地盤に複数個のブロックを布設する際、該隣接
するブロック間を連結する必要がある。 隣接するブロックの上部路盤部間に間隙がないの
で、取り扱いが難しく、かつブロック設置後において
は、該ブロック下部に骨材等の根固め基礎材の充填がで
きないため、ブロックの上部路盤部の表面平坦性を保持
させるのが難しい。 等の課題がある。However, in the case of the ground stabilizing and strengthening block as described above, there are the following problems. That is, since the center of gravity of the block is located above the block and has an unstable shape, it is difficult for the block itself to stand on its own, and the stackability, storability, and transportability of the block deteriorate. When laying a plurality of blocks on soft ground, it is necessary to connect the adjacent blocks. Since there is no gap between the upper roadbed portions of adjacent blocks, it is difficult to handle, and after the block is installed, the lower portion of the block cannot be filled with foundation material such as aggregate, so that the surface of the upper roadbed portion of the block can be removed. It is difficult to maintain flatness. And other issues.
【０００６】本発明は、以上のような課題に対処して創
作したものであって、その目的とする処は、ブロック自
体を自立できると共に、施工性がよく、かつ地表層や軟
弱地表層の軟弱地盤を安定させ、また補強させるのに適
した地盤安定・強化用ブロックを提供することにある。SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and the object thereof is to make the block itself self-supporting, to have good workability, and to provide a surface layer or a soft ground layer. An object of the present invention is to provide a ground stabilizing and reinforcing block suitable for stabilizing and reinforcing soft ground.
【０００７】[0007]
【課題を解決するための手段】そして、上記課題を解決
するための手段としての本発明の請求項１の地盤安定・
強化用ブロックは、中央部分に貫通縦孔を有し、該貫通
縦孔を中心にして、その外方に複数個の隣接する倒立錐
形体を有し、該倒立錐形体は、その中心軸線が、前記慣
通縦孔を中心とする同芯円上に等間隔に位置すると共
に、その上部で連続するパネル体を形成した構成として
いる。According to the first aspect of the present invention, as a means for solving the above-mentioned problems, the ground stability and
The reinforcing block has a through vertical hole in the central portion, and has a plurality of adjacent inverted pyramids on the outside of the through vertical hole as a center, and the inverted cone has a central axis line. The panel bodies are arranged at equal intervals on a concentric circle centered on the common vertical hole, and a continuous panel body is formed above the concentric circles.
【０００８】また、本発明の請求項２の地盤安定・強化
用ブロックは、前記倒立錐形体の側面の一部が、隣接す
る倒立錐形体の側面の一部と面接合状態にある構成とし
ている。更に本発明の請求項３の地盤安定・強化用ブロ
ックは、前記倒立錐形体が、該倒立錐形体の下端に円柱
または多角柱の軸脚を有し、また該軸脚が、貫通孔縦孔
と略同径である構成としている。更にまた、本発明の請
求項４の地盤安定・強化用ブロックは、前記倒立錐形体
が、倒立八角錐形体である構成としている。The ground stabilizing / reinforcing block according to a second aspect of the present invention has a configuration in which a part of the side surface of the inverted cone is joined to a part of the side surface of an adjacent inverted cone. . Furthermore, in the ground stabilizing / reinforcing block according to claim 3 of the present invention, the inverted cone has a cylindrical leg or a polygonal pillar at a lower end of the inverted cone, and the axial leg has a through-hole vertical hole. It is configured to have substantially the same diameter as. Furthermore, in the ground stabilization / strengthening block of claim 4 of the present invention, the inverted pyramid is an inverted octagonal pyramid.
【０００９】[0009]
【作用】本発明の請求項１の地盤安定・強化用ブロック
は、地表層や軟弱地表層の軟弱地盤に建築物や構築物を
建築・構築するに際し、まず、該軟弱地盤に骨材等の根
固め基礎材を加圧・充填する。そして、該加圧充填した
根固め基礎材の上に、前記ブロックを、その上部路盤部
の表面が、平坦性を保持する状態で配設する。この場
合、該ブロックは、複数本の倒立錐形体を有するので、
前記根固め基礎材上に安定した状態で自立する。The block for ground stabilization / reinforcement according to claim 1 of the present invention is such that, when building or constructing a building or a structure on the soft ground of the ground surface or the soft ground surface, the root of aggregate or the like is first formed on the soft ground. Pressurize and fill the solidified base material. Then, the block is disposed on the pressure-filled foundation material in a state where the surface of the upper roadbed section maintains flatness. In this case, the block has a plurality of inverted cones,
Independently in a stable state on the root consolidation base material.
【００１０】そして、各上部路盤部の慣通縦孔を通じて
根固め基礎材を加圧・充填しながら、前記ブロックを敷
設し、強固な人工地盤を形成する。ところで、従来の独
楽形ブロックの場合は、各上部地盤部に対して１本の軸
脚を有する構成であるため、隣接する各ブロック同士を
強固に連結保持しないと、ブロック間に形成される空間
部を通じて骨材、砕石等の根固め基礎材を加圧充填する
際に、該ブロックに位置ずれや傾きが発生し、地盤の表
面平坦性が得難くなる。これに対して、本発明の地盤安
定・強化用ブロックにあっては、複数本の倒立錐形体に
よってブロック自体が自立し、かつ前記基礎材を詰め込
むための空間部（貫通縦孔）が該ブロック自体の中央部
に形成されているので、該基礎材の充填作業の際に、該
ブロックに位置ずれや傾きの発生を解消でき、安定した
人工地盤を形成できる。[0010] The blocks are laid while pressing and filling the foundation material through the through-holes in the upper subbase to form a strong artificial ground. By the way, in the case of the conventional top block, since one upper leg portion has one shaft leg, the space formed between the blocks must be firmly connected and held between adjacent blocks. When the base material such as aggregate or crushed stone is pressure-filled through the portion, the block is displaced or tilted, making it difficult to obtain ground surface flatness. On the other hand, in the ground stabilization / strengthening block of the present invention, the block itself is self-supported by a plurality of inverted pyramids, and the space portion (through vertical hole) for packing the base material is the block. Since it is formed in the central portion of itself, it is possible to eliminate the occurrence of displacement and inclination of the block during the filling operation of the base material, and to form a stable artificial ground.
【００１１】本発明の請求項２の地盤安定・強化用ブロ
ックは、隣接する倒立錐形体の側面の一部と面接合状態
にしているので、倒立錐形体が形成する胴体部分の強度
を補強することができる。また本発明の請求項３の地盤
安定・強化用ブロックは、倒立錐形体の下端に円柱また
は多角柱の軸脚を有し、また該軸脚が貫通縦孔と略同径
であるので、このブロックを多段に配設する場合であっ
ても、前述したとおりブロック自体が自立し、かつ基礎
材の充填の際でも安定していることから、上段のブロッ
クの軸脚が、下段のブロックの貫通縦孔にぐらつき等が
なく係合・保持できる。In the ground stabilizing / reinforcing block according to the second aspect of the present invention, since the surface is joined to a part of the side face of the adjacent inverted cone, the strength of the body formed by the inverted cone is reinforced. be able to. Further, the ground stabilization / strengthening block according to claim 3 of the present invention has a cylindrical or polygonal columnar shaft leg at the lower end of the inverted pyramid, and the shaft leg has substantially the same diameter as the through vertical hole. Even when the blocks are arranged in multiple stages, the blocks themselves are self-supporting as described above and are stable even when the foundation material is filled. The vertical hole can be engaged and held without wobbling.
【００１２】更に、本発明の請求項１の地盤安定・強化
用ブロックは、倒立錐形体が倒立八角錐形体であるの
で、中央部分に貫通縦孔を有するブロックの表面外形が
正方形状となると共に、胴体部分の表面積を広くできる
ことより、その支持力を大きくすることができる。Further, in the ground stabilizing and strengthening block according to the first aspect of the present invention, since the inverted cone is an inverted octagonal pyramid, the surface of the block having a through-hole in the center portion has a square outer shape. Since the surface area of the body portion can be increased, the supporting force can be increased.
【００１３】[0013]
【実施例】以下、図面を参照しながら、本発明を具体化
した実施例について説明する。ここに、図１〜図５は、
本発明の地盤安定・強化用ブロックの一実施例を示し、
図１は平面図、図２は正面図、図３は裏面図、図４は布
設状態を示す地盤等の断面図、図５はブロックを多段に
布設した状態を示す地盤等の断面図である。Embodiments of the present invention will be described below with reference to the drawings. Here, FIG. 1 to FIG.
An example of the ground stabilization and strengthening block of the present invention is shown,
1 is a plan view, FIG. 2 is a front view, FIG. 3 is a rear view, FIG. 4 is a cross-sectional view of the ground or the like showing a laid state, and FIG. 5 is a cross-sectional view of the ground or the like showing a state in which blocks are laid in multiple stages. .
【００１４】本実施例の地盤安定・強化用ブロック１
は、概略すると、路盤部２と、この路盤部２の底面２ａ
に一体に設けれた４個の倒立錐形体３と、この倒立錐形
体３の下端３ａに設けられた軸脚４を有するパネル体で
あって、軟弱地盤の安定・強化のために用いる。The ground stabilizing and strengthening block 1 of this embodiment.
Is, roughly, a roadbed portion 2 and a bottom surface 2a of the roadbed portion 2.
This is a panel body having four inverted cone-shaped members 3 provided integrally with each other and a shaft leg 4 provided at a lower end 3a of the inverted cone-shaped member 3, and is used for stabilizing and strengthening soft ground.
【００１５】路盤部２は、４個の八角形の単位路盤部５
を平面視、四角形状に一体化した構造であって、その中
央部に貫通縦孔６を有し、この貫通縦孔６は、単位路盤
部５を形成する八角形の一辺を一辺とする四角形状の縦
孔である。そして、路盤部２の底面２ａに４個の倒立錐
形体３を有している。The subbase unit 2 comprises four octagonal unit subbase units 5
Has a structure in which it is integrated in a quadrangular shape in a plan view, and has a through vertical hole 6 in the center thereof, and the through vertical hole 6 is a square with one side of an octagon forming the unit roadbed section 5 as one side. It is a vertical hole of a shape. The base 2 has four inverted cones 3 on the bottom surface 2a.
【００１６】倒立錐形体３は、倒立八角錐形体であっ
て、慣通縦孔６の外周囲に位置すると共に、倒立錐形体
３の中心軸線Ｌが、慣通縦孔６を中心とする同芯円上に
等間隔に位置し、かつ隣接する倒立錐形体３の側面３ａ
同士の一部が面接合状態にあり、倒立錐形体３が、路盤
部２の底面２ａに一体化している。倒立錐形体３の斜面
３ｂの傾斜角度αは、３０〜６０°で、４５°が好まし
い。そして、倒立錐形体３の下端３ａには、軸脚４を有
している。The inverted pyramid 3 is an inverted octagonal pyramid, is located on the outer periphery of the common vertical hole 6, and the central axis L of the inverted pyramid 3 is centered on the common vertical hole 6. Side surfaces 3a of the inverted pyramids 3 which are located at equal intervals on the center circle and are adjacent to each other.
Some of them are in a plane-joined state, and the inverted cone-shaped body 3 is integrated with the bottom surface 2 a of the roadbed portion 2. The inclination angle α of the inclined surface 3b of the inverted cone 3 is 30 to 60 °, and preferably 45 °. The lower end 3 a of the inverted conical body 3 has a shaft leg 4.
【００１７】ここで、倒立錐形体３を、倒立八角錐形体
としたのは、ブロック体１としての支持力を大きくする
ことを考慮したためである。すなわち、該支持力は、摩
擦力と等しく、またこの摩擦力は、接地面積に比例して
大きくなることに鑑みて倒立八角錐形体としている。例
えば、倒立円錐形体と場合と比較すると、その錐形部分
の表面積は、倒立八角錐形体の場合、 ３．３１３ｒ・ｔａｎ２２．５°（ｒ2 ＋ｈ 2）1/2 で表されるのに対して、倒立円錐形体の場合、 πｒ（ｒ2 ＋ｈ 2）1/2 で表される。ここで、ｒは半径、ｈは高さを示す。従っ
て、倒立八角錐形体の方が、倒立円錐形体より、その表
面積が広くなるため、その支持力が大きい。Here, the reason why the inverted cone 3 is an inverted octagonal pyramid is to increase the supporting force of the block 1. That is, the supporting force is equal to the frictional force, and the frictional force is increased in proportion to the ground contact area. For example, in comparison with the case of the inverted cone, the surface area of the pyramidal portion is 3.313r · tan22.5 ° (r 2 + h 2 ) 1/2 in the case of the inverted octagonal pyramid. In the case of an inverted cone, it is represented by πr (r 2 + h 2 ) 1/2 . Here, r indicates a radius and h indicates a height. Therefore, the inverted octagonal pyramid has a larger surface area than the inverted cone and thus has a larger supporting force.
【００１８】軸脚４は、倒立八角錐形体の倒立錐形体３
から連続する八角柱であって、その下端には突起部４ａ
を有する杭として形成している。突起部４ａは、通常、
鈍角に形成されている。そして、軸脚４の径は、前記貫
通縦孔６の径と略同径とし、この貫通縦孔６に軸脚４が
挿入・保持できる。また、路盤部２の上部には、必要に
応じて、吊り下げ兼用で、隣接するブロック１を結合す
るための連結部７を有する。この連結具７は、通常、ブ
ロック１を形成する際の内部鉄筋で形成している。The shaft leg 4 is an inverted octagonal pyramid-shaped inverted cone 3
It is an octagonal prism that is continuous from
It is formed as a pile having The projection 4a is usually
It is formed at an obtuse angle. The diameter of the shaft leg 4 is substantially the same as the diameter of the through vertical hole 6, and the shaft leg 4 can be inserted and held in the through vertical hole 6. In addition, a connecting portion 7 for hanging and connecting adjacent blocks 1 is provided on the upper part of the roadbed portion 2 as needed. This connecting member 7 is usually formed of an internal reinforcing bar when forming the block 1.
【００１９】そして、本実施例の地盤安定・強化用ブロ
ック１は、軟弱地盤１０に建築物や構築物を建築・構築
するに際して地盤を安定・強化させるために用いる。ま
ず、強化しようとするする軟弱地盤１０に骨材等の根固
め基礎材１１を加圧・充填する。次に、該加圧充填した
根固め基礎材１１の上に、ブロック１を、その路盤部２
の表面が、平坦性を保持する状態で配設した後、各路盤
部２の慣通縦孔６を通じて根固め基礎材１１を加圧・充
填しながら、ブロックを布設し、強固な人工地盤を形成
する。また、ブロック１を多段に布設する場合、図５に
示すように、下段のブロック１の貫通縦孔６に、上段の
ブロック１の軸脚４を挿入・配置することで、揺れや位
置ずれが生じることがなく、その布設ができる。The ground stabilization / strengthening block 1 of this embodiment is used for stabilizing / strengthening the ground when constructing or building a building or a structure on the soft ground 10. First, a soft ground 10 to be reinforced is pressed and filled with a foundation material 11 such as an aggregate. Next, the block 1 is placed on the base material 11 that has been filled with pressure, and
After arranging the surface while maintaining the flatness, a block is laid while pressing and filling the foundation material 11 through the common vertical hole 6 of each roadbed section 2 to lay a solid artificial ground. Form. Further, when the blocks 1 are laid in multiple stages, as shown in FIG. 5, by inserting and arranging the shaft leg 4 of the upper block 1 into the through vertical hole 6 of the lower block 1, there is no shaking or misalignment. It can be installed without causing any problems.
【００２０】このようにして、布設する地盤安定・強化
用ブロック１は、ブロック１自体が複数本の軸脚４によ
って安定状態で基礎材上に自立し、また該基礎材による
層面が平坦面であれば、この隣接するブロック１の路盤
部２の上面が平坦面を形成し、簡単に、上部地盤の平坦
度を得ることができる。また、ブロック１が従来のブロ
ックを複数個一体化し、かつその中央に基礎材を詰め込
むための孔を有する形態となるので、地盤の不等沈下を
軽減でき、またブロック同士の連結を少なくできること
等からして施工性を向上させることができる。特に、胴
体部分を倒立八各錐形体としているので、その表面積を
広くできるので、その支持力を大きくできると共に、他
のブロック体１を連接配置した際、同じ形状の貫通縦孔
を得ることができるので、骨材等の根固め基礎材の充填
を均等に行うことができ、該上天の際に、揺れや位置ず
れが生じることがなく、その作業性を良好にできる。ま
た、本実施例のブロック体１は、中央部分に貫通縦孔を
有するパネル体構造となっているので、該貫通縦孔およ
びパネル体周縁部を保持することによって、運搬できる
ので、連結具を強固な状態にして吊り下げ部を兼用させ
る構造とする必要がない。In this manner, the ground stabilizing / strengthening block 1 to be laid is self-standing on the base material in a stable state by the plurality of shaft legs 4, and the layer surface of the base material is flat. If so, the upper surface of the roadbed portion 2 of the adjacent block 1 forms a flat surface, and the flatness of the upper ground can be easily obtained. In addition, since the block 1 has a configuration in which a plurality of conventional blocks are integrated and a hole is provided at the center thereof for filling a foundation material, uneven settlement of the ground can be reduced, and connection between the blocks can be reduced. The workability can be improved. In particular, since the body portion is made up of eight inverted pyramids, its surface area can be increased, so that its supporting force can be increased, and when the other block bodies 1 are connected and arranged, it is possible to obtain a through vertical hole having the same shape. As a result, it is possible to evenly fill the foundation material such as aggregates and the like, and it is possible to improve the workability without shaking or displacement during the overhead. Further, since the block body 1 of the present embodiment has a panel body structure having a through vertical hole in the central portion, it can be carried by holding the through vertical hole and the peripheral edge of the panel body, so that the connecting tool can be used. It is not necessary to have a structure in which the suspension part is also used in a solid state.
【００２１】なお、本発明は、上述した実施例に限定さ
れるものでなく、本発明の要旨を変更しない範囲内で変
形実施できる構成を含む。因みに、前述した実施例にお
いては、ブロックの胴部を形成する倒立錐形体を倒立八
角錐形体で説明したが、他の多角体や、図６、７に示す
うよな倒立円錐形状体としてもよい。そして、この構成
の場合において、軸脚４は、円柱状としている。また、
この倒立錐形体において、その斜面が、多少の膨らみを
有する形態、例えば、半球面状としてもよいことは当然
である。It should be noted that the present invention is not limited to the above-described embodiments, but includes a configuration that can be modified and implemented without changing the gist of the present invention. Incidentally, in the above-mentioned embodiment, the inverted pyramid forming the body of the block is described as an inverted octagonal pyramid, but other polygons or inverted cones as shown in FIGS. Good. Further, in the case of this configuration, the shaft leg 4 has a cylindrical shape. Also,
In the inverted conical body, the slope may naturally have a form having a slight bulge, for example, a hemispherical form.
【００２２】[0022]
【発明の効果】以上の説明より明らかなように、本発明
の請求項１の地盤安定・強化用ブロックによれば、中央
に貫通縦孔を有する路盤部の底面で、該慣通縦孔の外周
囲に複数個の倒立錐形体を有し、ブロック自体が自立す
るので、その施工性を向上させることができ、かつ積み
重ね、運搬性を良好にできるという効果を有する。ま
た、該倒立錐形体は、その中心軸線が、該慣通縦孔を中
心とする同芯円上に等間隔に位置し、隣接する倒立錐形
体の側面同士の一部が面接合状態にあり、貫通縦孔の位
置ずれがないので、ブロックを多段布設する場合、該貫
通縦孔に確実に保持でき、また基礎材を詰め込む際、該
ブロックの位置ずれや揺れが生じることが軽減でき、上
部地盤の表面の平坦度を良好なものとすることができる
という効果を有する。As is apparent from the above description, according to the ground stabilization / strengthening block of claim 1 of the present invention, the conventional vertical hole is formed on the bottom surface of the roadbed portion having the through vertical hole at the center. Since the block itself has a plurality of inverted pyramids around the outer periphery and the block itself is self-supporting, the workability can be improved, and the stacking and transporting properties can be improved. In addition, the inverted cone has its central axis positioned at equal intervals on a concentric circle centered on the through hole, and a part of the side surfaces of adjacent inverted cones is in a surface-joined state. Since there is no displacement of the vertical through-holes, the blocks can be securely held in the vertical through-holes when laying the blocks in multiple stages, and when the base material is packed, the positional deviation and the shaking of the blocks can be reduced. This has the effect that the flatness of the ground surface can be improved.
【００２３】また、本発明の請求項２の地盤安定・強化
用ブロックによれば、隣接する倒立錐形体の側面の一部
と面接合状態にしているので、倒立錐形体が形成する胴
体部分の強度を補強することができるという効果を有す
る。また本発明の請求項３の地盤安定・強化用ブロック
によれば、倒立錐形体の下端に円柱または多角柱の軸脚
を有し、また該軸脚が貫通縦孔と略同径であるので、こ
のブロックを多段に配設する場合であっても、前述した
とおりブロック自体が自立し、かつ基礎材の充填の際で
も安定していることから、上段のブロックの軸脚が、下
段のブロックの貫通縦孔にぐらつき等がなく係合・保持
できるという効果を有する。Further, according to the ground stabilization / strengthening block of the second aspect of the present invention, since a part of the side surface of the adjacent inverted pyramid is in surface-joining state, the body portion formed by the inverted pyramid is It has the effect that the strength can be reinforced. Further, according to the ground stabilization / strengthening block of claim 3 of the present invention, the inverted pyramidal body has a columnar or polygonal columnar shaft leg at the lower end, and the shaft leg has substantially the same diameter as the through vertical hole. Even when the blocks are arranged in multiple stages, the blocks themselves are self-supporting as described above and are stable even when the foundation material is filled. It has an effect that it can be engaged and held without wobbling in the through vertical hole.
【００２４】更に、本発明の請求項４の地盤安定・強化
用ブロックによれば、倒立錐形体が倒立八角錐形体であ
るので、中央部分に貫通縦孔を有するブロックの表面外
形が正方形状となると共に、ブロック体の胴体部分の表
面積を広くできることより、その支持力を大きくするこ
とができるという効果を有する。Furthermore, according to the ground stabilization / strengthening block of claim 4 of the present invention, since the inverted pyramid is an inverted octagonal pyramid, the block having a through vertical hole in the central portion has a square surface outline. In addition, since the surface area of the body portion of the block body can be increased, the supporting force can be increased.
【図１】本発明の地盤安定・強化用ブロックの一実施例
を示す平面図である。FIG. 1 is a plan view showing an embodiment of a ground stabilization / strengthening block of the present invention.
【図２】図１の正面図である。FIG. 2 is a front view of FIG.
【図３】図１の裏面図である。FIG. 3 is a rear view of FIG.
【図４】布設状態を示す地盤等の断面図である。FIG. 4 is a sectional view of the ground or the like showing a laid state.
【図５】ブロックを多段に布設した状態を示す地盤等の
断面図である。FIG. 5 is a cross-sectional view of the ground or the like showing a state in which blocks are laid in multiple stages.
【図６】倒立錐形体を倒立円錐形状体とした実施例の平
面図である。FIG. 6 is a plan view of an embodiment in which the inverted cone-shaped body is an inverted cone-shaped body.
【図７】図６の正面図である。FIG. 7 is a front view of FIG.
１・・・地盤安定・強化用ブロック、２・・・路盤部、
２ａ・・・路盤部の底面、３・・・倒立錐形体、３ａ・
・・倒立錐形体の下端、４・・・軸脚、４ａ・・・軸脚
の突起部、５・・・単位路盤部、６・・・貫通縦孔、７
・・・連結具、１０・・・軟弱地盤、１１・・・骨材等
の根固め基礎材1 ... Block for ground stabilization / strengthening, 2 ... Subbase,
2a: bottom surface of the roadbed, 3: inverted cone, 3a
..Lower end of inverted conical body, 4 ... Axle leg, 4a ... Projection portion of axle leg, 5 ... Unit roadbed portion, 6 ... Vertical through hole, 7
... Connecting tool, 10 ... Soft ground, 11 ... Foundation base material such as aggregate
Claims (4)
を中心にして、その外方に複数個の隣接する倒立錐形体
を有し、該倒立錐形体は、その中心軸線が、前記慣通縦
孔を中心とする同芯円上に等間隔に位置すると共に、そ
の上部で連続しパネル体を形成していることを特徴とす
る地盤安定・強化用ブロック。1. A through hole in a central portion, and a plurality of adjacent inverted cones on the outer side around the through hole, the inverted cone having a central axis thereof. A ground stabilizing / strengthening block which is located at equal intervals on a concentric circle centered on the through hole and has a continuous panel at the upper portion thereof.
る倒立錐形体の側面の一部と面接合状態にある請求項１
に記載の地盤安定・強化用ブロック。2. A part of the side surface of the inverted pyramid is in a surface-joining state with a part of the side surface of the adjacent inverted pyramid.
Ground stabilization and strengthening block described in.
に円柱または多角柱の軸脚を有し、また該軸脚が、貫通
孔縦孔と略同径である請求項１または２に記載の地盤安
定・強化用ブロック。3. The inverted pyramid has a columnar or polygonal columnar leg at the lower end of the inverted cone, and the columnar has substantially the same diameter as the through-hole vertical hole. Ground stabilization and strengthening block described in.
る請求項１〜３のいずれかに記載の地盤安定・強化用ブ
ロック。4. The ground stabilizing / reinforcing block according to claim 1, wherein the inverted cone is an inverted octagonal pyramid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23423394A JP2592785B2 (en) | 1994-09-02 | 1994-09-02 | Ground stabilization and reinforcement block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23423394A JP2592785B2 (en) | 1994-09-02 | 1994-09-02 | Ground stabilization and reinforcement block |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0874242A true JPH0874242A (en) | 1996-03-19 |
| JP2592785B2 JP2592785B2 (en) | 1997-03-19 |
Family
ID=16967784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23423394A Expired - Lifetime JP2592785B2 (en) | 1994-09-02 | 1994-09-02 | Ground stabilization and reinforcement block |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2592785B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015031147A (en) * | 2013-08-05 | 2015-02-16 | 貴之 池田 | Concrete block for foundation, and planar foundation structure using the same |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7554512B1 (en) | 2023-10-18 | 2024-09-20 | マックストン株式会社 | Anchor block for laying sheets |
-
1994
- 1994-09-02 JP JP23423394A patent/JP2592785B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015031147A (en) * | 2013-08-05 | 2015-02-16 | 貴之 池田 | Concrete block for foundation, and planar foundation structure using the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2592785B2 (en) | 1997-03-19 |
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