JP2016098604A

JP2016098604A - Anchor gear and construction method thereof

Info

Publication number: JP2016098604A
Application number: JP2014237895A
Authority: JP
Inventors: ▲鶴▼見　明俊; 明俊 ▲鶴▼見; Akitoshi Tsurumi; 信秀浅井; Nobuhide Asai; 祐治鎌崎; Yuji Kamazaki; 貴裕小室; Yoshihiro Komuro; 裕介野▲崎▼; Yusuke Nozaki
Original assignee: JFE Metal Products and Engineering Inc
Current assignee: JFE Metal Products and Engineering Inc
Priority date: 2014-11-25
Filing date: 2014-11-25
Publication date: 2016-05-30
Anticipated expiration: 2034-11-25
Also published as: JP6352780B2

Abstract

PROBLEM TO BE SOLVED: To provide an anchor gear capable of being correctly installed without deforming or breaking a component and a construction method thereof.SOLUTION: An anchor gear 100 comprises: an anchor sleeve pipe 110 which is placed in a concavity 910 formed on a foundation 900; and an anchor body 120 which is driven into the foundation 900 surrounded by the anchor sleeve pipe 110. The anchor sleeve pipe 110 comprises: a north side plate and a south side plate 10s; an east upper connecting material 14e which connects the north side plate and the south side plate and has an upper guide projection; a west connecting material 14w with the upper guide projection; an east lower connecting material 15e with a lower guide projection; and a west lower connecting material 15w with a lower guide projection. The anchor body 120 comprises: a steel pipe 70; and anchor blades 80e, 80w which are installed on the steel pipe 70 and face to each other. The anchor blades 80e, 80w are guided by the upper guide projection and the lower guide projection.SELECTED DRAWING: Figure 1

Description

本発明はアンカー装置およびアンカー装置の施工方法、特に、地盤に設置されるアンカー装置およびアンカー装置の施工方法に関する。 The present invention relates to an anchor device and an anchor device construction method, and more particularly to an anchor device installed on the ground and an anchor device construction method.

従来、アンカー装置は、傾斜した地盤における岩石の浮き上がりや岩石の脱落（落石）を防止するために設けられるネットを固定するものであって、かかるネットは傾斜した地盤を覆っているから、アンカー装置も傾斜した地盤に設置され、地盤から突出した部分に、ネットに固定されたワイヤーが取り付けられる。
したがって、落石が発生した場合、落石を受け止めた際にネットにかかる力は、ワイヤーを経由してアンカー装置に作用する。そのため、落石に伴う外力によって、ワイヤーの位置（ネットの位置に同じ）がずれないようにするため、地盤に打ち込まれるアンカー本体と、アンカー本体をその側方から指示するためのアンカー鞘管とを具備するアンカー装置が開示されている（例えば、特許文献１参照）。 Conventionally, an anchor device is used to fix a net provided to prevent rocks from rising or falling off rocks (falling rocks) in an inclined ground, and the anchor device covers an inclined ground. Is also installed on the inclined ground, and the wire fixed to the net is attached to the part protruding from the ground.
Therefore, when a falling rock occurs, the force applied to the net when receiving the falling rock acts on the anchor device via the wire. Therefore, in order to prevent the position of the wire (same as the position of the net) from shifting due to the external force associated with falling rocks, an anchor body that is driven into the ground and an anchor sheath tube for instructing the anchor body from its side An anchor device is disclosed (see, for example, Patent Document 1).

特許第４８３９２５６号公報（第５−７頁、図１）Japanese Patent No. 4839256 (page 5-7, FIG. 1)

特許文献１に開示された発明は、地盤に打ち込まれる方形状の断面の外管と、この外管の上端側の開口を塞ぎ、アンカー本体が挿通可能な貫通孔が形成された天板と、管の内側に配されてアンカー本体を支持する内管と、内管および外管とを連結する連結材とを備え、外管が地盤内に打ち込まれる際、内管および連結材は地盤に食い込むものである。
すなわち、外管が方形状の断面を有しているので、外管が円形状断面を有する従来のアンカー鞘管に比べて、搬送スペースを大きくすることなく、このアンカー鞘管の外管と土砂等との接触面積を増やし、この外管に作用する土砂等の抵抗力を大きくすることができるという作用効果が得られる。 The invention disclosed in Patent Document 1 is an outer tube having a rectangular cross section that is driven into the ground, a top plate that closes an opening on the upper end side of the outer tube, and has a through-hole through which the anchor body can be inserted, An inner pipe that is arranged inside the pipe and supports the anchor main body and a connecting material that connects the inner pipe and the outer pipe are provided. When the outer pipe is driven into the ground, the inner pipe and the connecting material bite into the ground. Is.
That is, since the outer pipe has a rectangular cross section, the outer pipe and the earth and sand of this anchor sheath pipe are not increased in comparison with the conventional anchor sheath pipe having a circular cross section. The effect of being able to increase the contact area with the earth and the like and to increase the resistance force of earth and sand acting on the outer pipe is obtained.

しかしながら、かかる発明は、アンカー鞘管を地盤内に打ち込んだ後、アンカー本体を地盤内に打ち込むものであるため、以下の問題がある。
すなわち、地盤内に岩石等が混ざっている場合に、かかる岩石等が抵抗になって、打ち込まれたアンカー鞘管の姿勢が予定した姿勢からずれたり、内管や連結材が変形あるいは破損したりすることがある。そうすると、天板に形成された貫通孔と内管とに案内されて打ち込まれたアンカー本体の姿勢も予定した姿勢からずれるという問題があった。
また、予定した姿勢にアンカー本体を打ち込むと、アンカー本体が内管や連結材に衝突して、これを破損し、アンカー本体にかかる力が内管および連結材を介して外管に伝達されないという問題があった。 However, this invention has the following problems because the anchor main body is driven into the ground after the anchor sheath tube is driven into the ground.
In other words, when rocks etc. are mixed in the ground, such rocks become resistance, the attitude of the anchor sheath tube that is driven will deviate from the intended attitude, the inner pipe and the connecting material may be deformed or damaged There are things to do. If it does so, there existed a problem that the attitude | position of the anchor main body guided and driven by the through-hole and inner pipe which were formed in the top plate also shifted | deviated from the planned attitude | position.
In addition, when the anchor body is driven into a predetermined posture, the anchor body collides with the inner tube and the connecting material, and this is damaged, and the force applied to the anchor body is not transmitted to the outer tube through the inner tube and the connecting material. There was a problem.

本発明は、前記問題を解決するものであって、地盤内に岩石等が混ざっている場合であっても、部材を変形や破損することなく、アンカー本体とアンカー鞘管とを予定した姿勢に正確に設置することができるアンカー装置およびアンカー装置の施工方法を提供することを目的とする。 The present invention solves the above problem, and even when rocks or the like are mixed in the ground, the anchor body and the anchor sheath tube are in a planned posture without deforming or damaging the member. It is an object of the present invention to provide an anchor device that can be accurately installed and a method for constructing the anchor device.

（１）本発明に係るアンカー装置は、地盤を掘削して形成された凹部に載置されるアンカー鞘管と、該アンカー鞘管に包囲されて、地盤に打ち込まれるアンカー本体と、を有し、
前記アンカー鞘管は、
上側縁、下側縁、左端縁および右端縁を具備する矩形状の一対の側面材と、
前記一対の側面材の両端部において、それぞれの前記上側縁同士を連結する一対の上連結材と、
前記一対の側面材の両端部において、それぞれの前記下側縁同士を連結する一対の下連結材と、
前記一対の側面材の長手方向の中央部において、それぞれの前記上側縁同士を連結する一対の上ガイド材と、
前記一対の上ガイド材のそれぞれに形成され、互いに対向した一対の上ガイド突起と、
前記一対の上ガイド材同士を連結する上ガイド補強材と、
前記一対の側面材の長手方向の中央部において、それぞれの前記下側縁同士を連結する一対の下ガイド材と、
前記一対の下ガイド材のそれぞれに形成され、互いに対向した一対の下ガイド突起と、
前記一対の下ガイド材同士を連結する下ガイド補強材と、
前記一対の側面材のそれぞれの下側縁の前記一方の下連結材寄りに設置された一方の底板と、
前記一対の側面材のそれぞれの下側縁の前記他方の下連結材寄りに設置された他方の底板と、を具備し、
前記アンカー本体は、
縮径した下端部を具備するアンカー管体と、該アンカー管体の側面に対向して固定された一対のアンカー羽根と、を具備し、
前記アンカー鞘管が前記凹部に載置された状態で、前記一対の上ガイド材同士の間で、前記アンカー羽根の側縁が前記上ガイド突起に案内され、且つ、前記一対の下ガイド材同士の間で、前記アンカー羽根の側縁が前記下ガイド突起に案内され、前記一方の底板と前記他方の底板との間に形成された開口部を通過して、前記アンカー本体が前記地盤に打ち込まれることを特徴とする。 (1) An anchor device according to the present invention has an anchor sheath tube placed in a recess formed by excavating the ground, and an anchor body surrounded by the anchor sheath tube and driven into the ground. ,
The anchor sheath tube is
A pair of rectangular side surfaces having an upper edge, a lower edge, a left edge and a right edge; and
At both ends of the pair of side members, a pair of upper connecting members that connect the upper edges, and
At both ends of the pair of side members, a pair of lower connecting members that connect the lower edges to each other;
A pair of upper guide members connecting the upper edges of the pair of side members in the longitudinal direction;
A pair of upper guide protrusions formed on each of the pair of upper guide members and facing each other;
An upper guide reinforcing member for connecting the pair of upper guide members;
A pair of lower guide members connecting the lower edges of each of the pair of side members in the longitudinal direction;
A pair of lower guide protrusions formed on each of the pair of lower guide members and facing each other;
A lower guide reinforcement connecting the pair of lower guide members;
One bottom plate installed near the one lower connecting member on the lower edge of each of the pair of side members;
The other bottom plate installed near the other lower connecting member of the lower edge of each of the pair of side members,
The anchor body is
An anchor tube body having a reduced diameter lower end, and a pair of anchor blades fixed to face the side surface of the anchor tube body,
With the anchor sheath tube placed in the recess, a side edge of the anchor blade is guided by the upper guide protrusion between the pair of upper guide members, and the pair of lower guide members In between, the edge of the anchor blade is guided by the lower guide projection, passes through an opening formed between the one bottom plate and the other bottom plate, and the anchor body is driven into the ground. It is characterized by that.

（２）また、前記一対の側面材は、断面波型鋼板であって、前記一対の側面材のうちの一方の側面材の上側縁および下側縁が、前記一対の側面材のうちの他方の側面材の方向に折り曲げられていることを特徴とする。
（３）また、前記一対の上ガイド突起の中央と前記一対の下ガイド突起の中央とを結ぶ仮想線が、前記一対の上連結材に対して傾斜していることを特徴とする。
（４）また、前記一対のアンカー羽根の上端と前記アンカー管体の上端との距離は、前記一対の側面材の上側縁と前記一対の側面材の下側縁との距離よりも長いことを特徴とする。 (2) The pair of side members are corrugated steel sheets, and an upper edge and a lower edge of one side member of the pair of side members are the other of the pair of side members. It is bent in the direction of the side material.
(3) Further, an imaginary line connecting the center of the pair of upper guide protrusions and the center of the pair of lower guide protrusions is inclined with respect to the pair of upper connecting members.
(4) The distance between the upper end of the pair of anchor blades and the upper end of the anchor tube body is longer than the distance between the upper edge of the pair of side members and the lower edge of the pair of side members. Features.

（５）さらに、本発明に係るアンカー装置の施工方法は、地盤を掘削して形成された凹部に載置されるアンカー鞘管と、該アンカー鞘管に包囲されて、地盤に打ち込まれるアンカー本体とを有するアンカー装置の施工方法であって、
前記アンカー鞘管は、
上側縁、下側縁、左端縁および右端縁を具備する矩形状の一対の側面材と、
前記一対の側面材の両端部において、それぞれの前記上側縁同士を連結する一対の上連結材と、
前記一対の側面材の両端部において、それぞれの前記下側縁同士を連結する一対の下連結材と、
前記一対の側面材の長手方向の中央部において、それぞれの前記上側縁同士を連結する一対の上ガイド材と、
前記一対の上ガイド材のそれぞれに形成され、互いに対向した一対の上ガイド突起と、
前記一対の上ガイド材同士を連結する上ガイド補強材と、
前記一対の側面材の長手方向の中央部において、それぞれの前記下側縁同士を連結する一対の下ガイド材と、
前記一対の下ガイド材のそれぞれに形成され、互いに対向した一対の下ガイド突起と、
前記一対の下ガイド材同士を連結する下ガイド補強材と、
前記一対の側面材のそれぞれの下側縁の前記一方の下連結材寄りに設置された一方の底板と、
前記一対の側面材のそれぞれの下側縁の前記他方の下連結材寄りに設置された他方の底板と、を具備し、
前記アンカー本体は、
縮径した下端部を具備するアンカー管体と、該アンカー管体の側面に対向して固定された一対のアンカー羽根と、を具備し、
地盤を掘削して凹部を形成する工程と、
前記凹部に前記アンカー鞘管を載置する工程と、
前記一対の上ガイド材同士の間で、前記アンカー羽根の側縁が前記上ガイド突起に案内され、且つ、前記一対の下ガイド材同士の間で、前記アンカー羽根の側縁が前記下ガイド突起に案内され、前記一方の底板と前記他方の底板との間に形成された開口部を通過して、前記アンカー本体を前記地盤に打ち込む工程と、
前記凹部と前記アンカー鞘管の外側との間、および前記アンカー鞘管の内側と前記アンカー本体との間に、土砂を投入する工程と、
を有することを特徴とする。 (5) Furthermore, the anchor device construction method according to the present invention includes an anchor sheath pipe placed in a recess formed by excavating the ground, and an anchor body surrounded by the anchor sheath pipe and driven into the ground. An anchor device construction method comprising:
The anchor sheath tube is
A pair of rectangular side surfaces having an upper edge, a lower edge, a left edge and a right edge; and
At both ends of the pair of side members, a pair of upper connecting members that connect the upper edges, and
At both ends of the pair of side members, a pair of lower connecting members that connect the lower edges to each other;
A pair of upper guide members connecting the upper edges of the pair of side members in the longitudinal direction;
A pair of upper guide protrusions formed on each of the pair of upper guide members and facing each other;
An upper guide reinforcing member for connecting the pair of upper guide members;
A pair of lower guide members connecting the lower edges of each of the pair of side members in the longitudinal direction;
A pair of lower guide protrusions formed on each of the pair of lower guide members and facing each other;
A lower guide reinforcement connecting the pair of lower guide members;
One bottom plate installed near the one lower connecting member on the lower edge of each of the pair of side members;
The other bottom plate installed near the other lower connecting member of the lower edge of each of the pair of side members,
The anchor body is
An anchor tube body having a reduced diameter lower end, and a pair of anchor blades fixed to face the side surface of the anchor tube body,
Excavating the ground to form a recess;
Placing the anchor sheath tube in the recess;
Between the pair of upper guide members, the side edge of the anchor blade is guided by the upper guide protrusion, and between the pair of lower guide members, the side edge of the anchor blade is the lower guide protrusion. Passing through an opening formed between the one bottom plate and the other bottom plate and driving the anchor body into the ground,
Throwing earth and sand between the recess and the outside of the anchor sheath tube, and between the inside of the anchor sheath tube and the anchor body;
It is characterized by having.

（６）また、前記アンカー管体の上端と前記アンカー羽根の上端との距離が、前記一対の上ガイド材と前記一対の下ガイド材との距離よりも長く、
前記アンカー羽根の上端が前記一対の下ガイド材よりも下になるまで、前記アンカー本体を打設することを特徴とする。 (6) Further, the distance between the upper end of the anchor tube body and the upper end of the anchor blade is longer than the distance between the pair of upper guide members and the pair of lower guide members,
The anchor main body is driven until the upper end of the anchor blade is below the pair of lower guide members.

（ｉ）本発明に係るアンカー装置およびアンカー装置の施工方法は、アンカー鞘管が地盤を掘削して形成された凹部に載置されるから、地盤内に岩石等が混ざっている場合であっても、部材を変形や破損することなく、アンカー鞘管を予定した姿勢に正確に設置することができる。
（ｉｉ）アンカー本体は、アンカー鞘管に設置された一対の上ガイド突起と一対の下ガイド突起とに案内された状態で、地盤に打ち込まれるから、アンカー本体を予定した姿勢に正確に設置することができる。
（ｉｉｉ）そして、一対の上ガイド突起と一対の上ガイド突起とを結ぶ仮想線を、一対の側面材の上側縁に対して垂直にしたり、傾斜させたりすることができるから、アンカー本体を地盤の表面に対して、所望の角度に打ち込むことができる。
（ｉｖ）さらに、一対の側面材は断面波型鋼板であって上側縁および下側縁が折り曲げられているから、高い剛性を有すると共に、一対の上ガイド材および一対の下ガイド材を直接設置することができる。よって、軽量化を図ることができる。 (I) Since the anchor device and the construction method of the anchor device according to the present invention are placed in a recess formed by excavating the ground, the rock is mixed in the ground. However, it is possible to accurately install the anchor sheath tube in a predetermined posture without deforming or damaging the member.
(Ii) Since the anchor body is driven into the ground in a state guided by the pair of upper guide protrusions and the pair of lower guide protrusions installed on the anchor sheath tube, the anchor body is accurately installed in a predetermined posture. be able to.
(Iii) Since an imaginary line connecting the pair of upper guide protrusions and the pair of upper guide protrusions can be made perpendicular to or inclined with respect to the upper edges of the pair of side members, the anchor body is grounded. It can be driven at a desired angle with respect to the surface.
(Iv) Further, since the pair of side members are corrugated steel sheets and the upper edge and the lower edge are bent, they have high rigidity and are directly installed with a pair of upper guide members and a pair of lower guide members. can do. Therefore, weight reduction can be achieved.

（ｖ）さらに、アンカー羽根はアンカー管体の上部の所定範囲を除く範囲に設置されているから軽量化が図られている。
（ｖｉ）さらに、上ガイド補強材および下ガイド補強材を有するから、アンカー本体に作用する力によって、アンカー本体が上ガイド補強材および下ガイド補強材の一方または両方に当接した場合には、アンカー本体に作用する力が上ガイド材および下ガイド材の一方または両方を介してアンカー鞘管内に直接伝達される。 (V) Furthermore, since the anchor blade is installed in a range excluding a predetermined range at the upper part of the anchor pipe body, the weight is reduced.
(Vi) Further, since the upper guide reinforcing material and the lower guide reinforcing material are provided, when the anchor main body abuts on one or both of the upper guide reinforcing material and the lower guide reinforcing material due to the force acting on the anchor main body, A force acting on the anchor body is transmitted directly into the anchor sheath tube via one or both of the upper guide member and the lower guide member.

本発明の実施の形態に係るアンカー装置の設置された状態を説明する一部を透過して示す正面図。The front view which permeate | transmits and shows a part explaining the state in which the anchor apparatus which concerns on embodiment of this invention was installed. 本発明の実施の形態に係るアンカー装置の設置された状態を説明する一部を透過して示す左側面図。The left view which permeate | transmits and shows a part explaining the state in which the anchor apparatus which concerns on embodiment of this invention was installed. 本発明の実施の形態に係るアンカー装置を構成するアンカー鞘管を説明する正面図。The front view explaining the anchor sheath tube which constitutes the anchor device concerning an embodiment of the invention. 本発明の実施の形態に係るアンカー装置を構成するアンカー鞘管を説明する左側面図。The left view explaining the anchor sheath tube which comprises the anchor apparatus which concerns on embodiment of this invention. 本発明の実施の形態に係るアンカー装置を構成するアンカー鞘管を説明する平面図。The top view explaining the anchor sheath tube which constitutes the anchor device concerning an embodiment of the invention. 本発明の実施の形態に係るアンカー装置を構成するアンカー鞘管を説明する底面図。The bottom view explaining the anchor sheath tube which constitutes the anchor device concerning an embodiment of the invention. 本発明の実施の形態に係るアンカー装置を構成するアンカー鞘管を説明する側面視の断面図。Sectional drawing of the side view explaining the anchor sheath pipe which comprises the anchor apparatus which concerns on embodiment of this invention. 本発明の実施の形態に係るアンカー装置の施工方法を説明するフローチャート。The flowchart explaining the construction method of the anchor apparatus which concerns on embodiment of this invention. 本発明の実施の形態に係るアンカー装置の施工方法を説明するものであって、（ａ）は一部を拡大して示す平面図、（ｂ）は一部を拡大して示す底面図。BRIEF DESCRIPTION OF THE DRAWINGS The construction method of the anchor apparatus which concerns on embodiment of this invention is demonstrated, Comprising: (a) is a top view which expands and shows a part, (b) is a bottom view which expands and shows a part. 本発明の実施の形態に係るアンカー装置の施工方法を示すアンカー装置の一部を拡大して示す正面視の断面図。Sectional drawing of the front view which expands and shows a part of anchor device which shows the construction method of the anchor device which concerns on embodiment of this invention. 本発明の実施の形態に係るアンカー装置の変形例−１を説明する一部を透過した側面図。The side view which permeate | transmitted one part explaining the modification-1 of the anchor apparatus which concerns on embodiment of this invention. 本発明の実施の形態に係るアンカー装置の変形例−２を説明する一部を透過した側面図。The side view which permeate | transmitted one part explaining the modification-2 of the anchor apparatus which concerns on embodiment of this invention.

［実施の形態１］
図１および図２は、本発明の実施の形態に係るアンカー装置の設置された状態を説明するものであって、図１は一部を透過して示す正面図、図２は一部を透過して示す左側面図である。なお、各図は模式的に描かれたものであって、本発明は描かれた形態に限定するものではない。 [Embodiment 1]
FIG. 1 and FIG. 2 are diagrams for explaining a state where an anchor device according to an embodiment of the present invention is installed. FIG. 1 is a partially transparent front view, and FIG. It is a left view shown. Each drawing is schematically drawn, and the present invention is not limited to the drawn form.

図１および図２において、アンカー装置１００は、地盤９００を掘削して形成された凹部９１０に載置されるアンカー鞘管１１０と、アンカー鞘管１１０に包囲されて、地盤９００に打ち込まれるアンカー本体１２０と、を有している。
なお、説明の便宜上、地盤９００は傾斜した斜面であって、少なくとも凹部９１０が形成された範囲において、北側が高く、南側が低くなるように傾斜し、東西方向の高さは同じで、傾斜していないものとする。そして、各部材の名称に、それが配置される方位に対応して、「東西南北」を付し、その符号に東は「ｅ」、西は「ｗ」、南は「ｓ」、北は「ｎ」を付す。 1 and 2, an anchor device 100 includes an anchor sheath tube 110 placed in a recess 910 formed by excavating the ground 900, and an anchor body surrounded by the anchor sheath tube 110 and driven into the ground 900. 120.
For convenience of explanation, the ground 900 is an inclined slope, and at least in the range where the concave portion 910 is formed, the ground is inclined so that the north side is high and the south side is low, the height in the east-west direction is the same, and the slope is inclined. Shall not. Then, “East, West, North and South” is attached to the name of each member corresponding to the direction in which it is arranged, and “e” for the east, “w” for the west, “s” for the south, “N” is attached.

（アンカー鞘管）
図３〜図７は、本発明の実施の形態に係るアンカー装置を構成するアンカー鞘管を説明するものであって、図３は正面図、図４は左側面図、図５は平面図、図６は底面図、図７は側面視の断面図である。なお、各図は模式的に描かれたものであって、本発明は描かれた形態に限定するものではない。
図３〜図７において、アンカー鞘管１１０は、互いに対向する北側板１０ｎおよび南側板１０ｓとを有している。北側板１０ｎの東端縁には北東端材１２ｎが、西端縁には北西端材１３ｎがそれぞれ設置され、南側板１０ｓの東端縁には南東端材１２ｓが、西端縁には南西端材１３ｓがそれぞれ設置されている。
そして、北東端材１２ｎの上端と南東端材１２ｓの上端とが東上連結材１４ｅによって連結され、北東端材１２ｎの下端と南東端材１２ｓの下端とが東下連結材１５ｅによって連結され、さらに、北東端材１２ｎの上端と南東端材１２ｓの下端とが東斜材１６ｅによって連結されている。
同様に、北西端材１３ｎの上端と南西端材１３ｓの上端とが西上連結材１４ｗによって連結され、北西端材１３ｎの下端と南西端材１３ｓの下端とが西下連結材１５ｗによって連結され、さらに、北西端材１３ｎの上端と南西端材１３ｓの下端とが西斜材１６ｗによって連結されている。 (Anchor sheath)
3 to 7 illustrate an anchor sheath tube constituting the anchor device according to the embodiment of the present invention. FIG. 3 is a front view, FIG. 4 is a left side view, and FIG. 5 is a plan view. 6 is a bottom view, and FIG. 7 is a sectional view in side view. Each drawing is schematically drawn, and the present invention is not limited to the drawn form.
3 to 7, the anchor sheath tube 110 has a north side plate 10n and a south side plate 10s that face each other. A northeast end 12n is installed at the east end of the north side plate 10n, a northwest end 13n is installed at the west end, a southeast end 12s at the east end of the south side 10s, and a southwest end 13s at the west end. Each is installed.
The upper end of the northeast end member 12n and the upper end of the southeast end member 12s are connected by the east upper connecting member 14e, the lower end of the northeast end member 12n and the lower end of the southeast end member 12s are connected by the east lower connecting member 15e, The upper end of the northeast end member 12n and the lower end of the southeast end member 12s are connected by the east oblique member 16e.
Similarly, the upper end of the northwest end member 13n and the upper end of the southwest end member 13s are connected by the west upper connecting member 14w, and the lower end of the northwest end member 13n and the lower end of the southwest end member 13s are connected by the west lower connecting member 15w. Furthermore, the upper end of the northwest end member 13n and the lower end of the southwest end member 13s are connected by the west diagonal member 16w.

なお、北側板１０ｎおよび南側板１０ｓは、同じ形状（正確には、面対称）であって、東西方向（左右方向）が上下方向よりも長い矩形状の波板である。
以下、平面視で長方形の枠を形成する北側板１０ｎの上側縁、東上連結材１４ｅ、南側板１０ｓの上側縁および西上連結材１４ｗを、まとめて「上枠状部１１ｔ」と称す場合があり、また、平面視で長方形の枠を形成する北側板１０ｎの下側縁、東下連結材１５ｅ、南側板１０ｓの下側縁および西下連結材１５ｗを、まとめて「下枠状部１１ｂ」と称す場合がある。 The north-side plate 10n and the south-side plate 10s are rectangular corrugated plates having the same shape (exactly plane symmetry) and having an east-west direction (left-right direction) longer than the up-down direction.
Hereinafter, the upper edge of the north side plate 10n, the eastern upper connecting member 14e, the upper edge of the south side plate 10s, and the west upper connecting member 14w forming a rectangular frame in plan view may be collectively referred to as an “upper frame-shaped portion 11t”. In addition, the lower edge of the north side plate 10n, the lower east connecting member 15e, the lower side edge of the south side plate 10s, and the west lower connecting member 15w, which form a rectangular frame in plan view, are collectively referred to as a “lower frame-shaped portion 11b. May be referred to.

（底板）
下枠状部１１ｂに、東底板２０ｅおよび西底板２０ｗが設置されている。東底板２０ｅは、北側板１０ｎの下側縁の東寄りの範囲と南側板１０ｓの下側縁の東寄りの範囲とに、対向する２辺が固定され、西底板２０ｗは、北側板１０ｎの下側縁の西寄りの範囲と南側板１０ｓの下側縁の西寄りの範囲とに、対向する２辺が設置されている。そして、東底板２０ｅと西底板２０ｗとは間に開口部２０ｋが形成されている。 (Bottom plate)
The east bottom board 20e and the west bottom board 20w are installed in the lower frame-shaped part 11b. The east bottom plate 20e has two opposite sides fixed to the east side range of the lower side edge of the north side plate 10n and the east side range of the lower side edge of the south side plate 10s. Two opposing sides are installed in the westward range of the lower edge and the westward range of the lower edge of the south side plate 10s. An opening 20k is formed between the east bottom plate 20e and the west bottom plate 20w.

（上ガイド材）
上枠状部１１ｔの東西方向（左右方向）の中央を挟んで対称位置に、断面Ｌ字の形鋼である上ガイド材３０ｅおよび上ガイド材３０ｗが設置され、上ガイド材３０ｅと上ガイド材３０ｗとは上ガイド補強材３１によって連結されている。
このとき、上ガイド材３０ｅの両端部には上ガイド取付板３３ｅおよび上ガイド取付板３４ｅが固定され、上ガイド材３０ｗの両端部には上ガイド取付板３３ｗおよび上ガイド取付板３４ｗが固定されている。
そして、上ガイド取付板３３ｅおよび上ガイド取付板３３ｗが、北側板１０ｎの上側縁にボルトによって設置され、上ガイド取付板３４ｅおよび上ガイド取付板３４ｗが、南側板１０ｓの上側縁にボルトによって設置されている。
そして、上ガイド材３０ｅおよび上ガイド材３０ｗの対向した面（上下方向の面）に、所定の間隔を空けて一対の上ガイド突起３２ｅおよび一対の上ガイド突起３２ｗがそれぞれ設けられている。なお、上ガイド突起３２ｅおよび上ガイド突起３２ｗは、短尺の２本の棒材を溶接したものであるが、断面Ｕ字の形鋼を設置してもよい。 (Upper guide material)
The upper guide member 30e and the upper guide member 30w, which are L-shaped section steel, are installed at symmetrical positions across the center of the upper frame portion 11t in the east-west direction (left-right direction). The upper guide reinforcement 31 is connected to 30w.
At this time, the upper guide mounting plate 33e and the upper guide mounting plate 34e are fixed to both ends of the upper guide member 30e, and the upper guide mounting plate 33w and the upper guide mounting plate 34w are fixed to both ends of the upper guide member 30w. ing.
The upper guide mounting plate 33e and the upper guide mounting plate 33w are installed by bolts on the upper edge of the north side plate 10n, and the upper guide mounting plate 34e and the upper guide mounting plate 34w are installed by bolts on the upper side edge of the south side plate 10s. Has been.
A pair of upper guide protrusions 32e and a pair of upper guide protrusions 32w are respectively provided on the opposing surfaces (surfaces in the vertical direction) of the upper guide member 30e and the upper guide member 30w with a predetermined interval therebetween. The upper guide protrusion 32e and the upper guide protrusion 32w are made by welding two short bars, but a section steel having a U-shaped cross section may be installed.

（下ガイド材）
また、同様に、下枠状部１１ｂの東西方向（左右方向）の中央を挟んで対称位置に、断面Ｌ字の形鋼である下ガイド材４０ｅおよび下ガイド材４０ｗが設置され、両者は下ガイド補強材４１によって連結されている。このとき、下ガイド材４０ｅの両端部には下ガイド取付板４３ｅおよび下ガイド取付板４４ｅが固定されている。
また、下ガイド材４０ｗの両端部には下ガイド取付板４３ｗおよび下ガイド取付板４４ｗが固定されている。
そして、下ガイド取付板４３ｅおよび下ガイド取付板４３ｗが、北側板１０ｎの下側縁にボルトによって設置され、下ガイド取付板４４ｅおよび下ガイド取付板４４ｗが、南側板１０ｓの下側縁にボルトによって設置されている。
そして、下ガイド材４０ｅおよび下ガイド材４０ｗの対向した面（上下方向の面）に、所定の間隔を空けて一対の下ガイド突起４２ｅおよび一対の下ガイド突起４２ｗがそれぞれ設けられている。なお、下ガイド突起４２ｅおよび下ガイド突起４２ｗは、短尺の２本の棒材を溶接したものであるが、断面Ｕ字の形鋼を設置してもよい。 (Lower guide material)
Similarly, a lower guide member 40e and a lower guide member 40w, which are L-shaped sections, are installed at symmetrical positions across the center in the east-west direction (left-right direction) of the lower frame-shaped portion 11b. They are connected by a guide reinforcement 41. At this time, the lower guide mounting plate 43e and the lower guide mounting plate 44e are fixed to both ends of the lower guide member 40e.
A lower guide mounting plate 43w and a lower guide mounting plate 44w are fixed to both ends of the lower guide material 40w.
The lower guide mounting plate 43e and the lower guide mounting plate 43w are installed by bolts on the lower side edge of the north side plate 10n, and the lower guide mounting plate 44e and the lower guide mounting plate 44w are bolts on the lower side edge of the south side plate 10s. Is installed by.
A pair of lower guide protrusions 42e and a pair of lower guide protrusions 42w are provided on the opposing surfaces (surfaces in the vertical direction) of the lower guide member 40e and the lower guide member 40w with a predetermined interval therebetween. In addition, although the lower guide protrusion 42e and the lower guide protrusion 42w are obtained by welding two short bars, a section steel having a U-shaped cross section may be installed.

（上回転防止材）
さらに、南側板１０ｓの上側縁に、上回転防止材５０ｅおよび上回転防止材５０ｗが設置されている。すなわち、上回転防止材５０ｅおよび上回転防止材５０ｗはボルト貫通孔（図示しない）が形成された板材であって、それぞれ上ガイド取付板３４ｅおよび上ガイド取付板３４ｗに重なった状態で、それぞれ上ガイド取付板３４ｅおよび上ガイド取付板３４ｗを挟みつけるようにして、南側板１０ｓの上側縁にボルトによって設置されている。 (Upper rotation prevention material)
Furthermore, the upper rotation prevention material 50e and the upper rotation prevention material 50w are installed in the upper edge of the south side board 10s. That is, the upper anti-rotation member 50e and the upper anti-rotation member 50w are plate materials in which bolt through holes (not shown) are formed, and each of the upper anti-rotation member 50e and the upper anti-rotation member 50w is overlapped with the upper guide attachment plate 34e and the upper guide attachment plate 34w. The guide mounting plate 34e and the upper guide mounting plate 34w are sandwiched between the upper side edges of the south side plate 10s by bolts.

（下回転防止材）
また、下枠状部１１ｂの北側板１０ｎの下側縁に、下回転防止材６０ｅおよび下回転防止材６０ｗが設置されている。すなわち、下回転防止材６０ｅおよび下回転防止材６０ｗはボルト貫通孔（図示しない）が形成された板材であって、それぞれ下ガイド取付板４３ｅおよび下ガイド取付板４３ｗに重なった状態で、北側板１０ｎの下側縁にボルトによって設置されている。 (Lower rotation prevention material)
Further, a lower rotation preventing material 60e and a lower rotation preventing material 60w are provided on the lower edge of the north side plate 10n of the lower frame-shaped portion 11b. That is, the lower rotation prevention member 60e and the lower rotation prevention member 60w are plate materials in which bolt through holes (not shown) are formed, and overlap the lower guide attachment plate 43e and the lower guide attachment plate 43w, respectively, It is installed by bolts on the lower edge of 10n.

（アンカー本体）
アンカー本体１２０は、鋼管７０と、鋼管７０の側面の対向した位置に設置された（同一平面内に位置する）アンカー羽根８０ｅおよびアンカー羽根８０ｗとを有している。
鋼管７０は、管下端７１に向かってなめらかに縮径する縮径部７２が形成され、管上端７３に近い位置に、図示しないワイヤーを係止するため、ナット７５が螺合されたボルト７４が取り付けられている（地盤９００に打設された後、取り付けられる場合もある）。
アンカー羽根８０ｅおよびアンカー羽根８０ｗは同じ台形形状であって、それぞれ、羽根下端８１ｅ、８１ｗは羽根上端８３ｅ、８３ｗに近づく程、鋼管７０の側面から遠ざかるように傾斜し、羽根側縁８２ｅ、８２ｗは鋼管７０の側面に平行で、羽根上端８３ｅ、８３ｗは鋼管７０の側面に垂直である。 (Anchor body)
The anchor main body 120 includes a steel pipe 70, and anchor blades 80e and anchor blades 80w that are installed at positions opposite to the side surfaces of the steel pipe 70 (located in the same plane).
The steel pipe 70 is formed with a reduced diameter portion 72 that smoothly decreases in diameter toward the lower end 71 of the pipe, and a bolt 74 into which a nut 75 is screwed to lock a wire (not shown) at a position close to the upper end 73 of the pipe. (It may be attached after being placed on the ground 900).
The anchor blade 80e and the anchor blade 80w have the same trapezoidal shape, and the blade lower ends 81e and 81w are inclined away from the side surface of the steel pipe 70 as they approach the blade upper ends 83e and 83w, and the blade side edges 82e and 82w are Parallel to the side surface of the steel pipe 70, the blade upper ends 83e and 83w are perpendicular to the side surface of the steel pipe 70.

そして、羽根側縁８２ｅと羽根側縁８２ｗとの距離は、上ガイド材３０ｅと上ガイド材３０ｗとの間隔より僅かに小さく（狭く）、同様に、下ガイド材４０ｅと下ガイド材４０ｗとの間隔より僅かに小さい（狭い）。また、羽根側縁８２ｅの厚さおよび羽根側縁８２ｗの厚さは、何れも、一対の上ガイド突起３２ｅの間隔および一対の上ガイド突起３２ｗの間隔よりも小さく（薄い）、一対の下ガイド突起４２ｅの間隔および一対の下ガイド突起４２ｗの間隔よりも小さい（薄い）。
したがって、アンカー本体１２０は、アンカー羽根８０ｅが一対の上ガイド突起３２ｅと一対の下ガイド突起４２ｅとに案内され、アンカー羽根８０ｗが一対の上ガイド突起３２ｗと一対の下ガイド突起４２ｗとに案内されて、打設することが可能になっている。 The distance between the blade side edge 82e and the blade side edge 82w is slightly smaller (narrower) than the distance between the upper guide member 30e and the upper guide member 30w, and similarly, the distance between the lower guide member 40e and the lower guide member 40w. Slightly smaller (narrower) than the interval. Further, the thickness of the blade side edge 82e and the thickness of the blade side edge 82w are both smaller (thin) than the distance between the pair of upper guide protrusions 32e and the distance between the pair of upper guide protrusions 32w. It is smaller (thinner) than the interval between the protrusions 42e and the interval between the pair of lower guide protrusions 42w.
Therefore, in the anchor main body 120, the anchor blade 80e is guided by the pair of upper guide protrusions 32e and the pair of lower guide protrusions 42e, and the anchor blade 80w is guided by the pair of upper guide protrusions 32w and the pair of lower guide protrusions 42w. Can be placed.

（施工方法）
図８〜図１０は、本発明の実施の形態に係るアンカー装置の施工方法を説明するものであって、図８はフローチャート、図９の（ａ）はアンカー装置の一部を拡大して示す平面図、図９の（ｂ）はアンカー装置の一部を拡大して示す底面図、図１０はアンカー装置の一部を拡大して示す正面視の断面図である。なお、各図は模式的に描かれたものであって、本発明は描かれた形態に限定するものではない。
図８において、まず、傾斜した地盤９００の一部を掘削して、アンカー装置１００を設置するための凹部９１０を形成する（Ｓ１、図１および図２参照）。
次に、凹部９１０にアンカー鞘管１１０を載置する（Ｓ２、図１および図２参照）。このとき、地盤９００の高い側に北側板１０ｎを、低い側に南側板１０ｓを配置する。このとき、上枠状部１１ｔおよび下枠状部１１ｂは地盤９００の表面に平行であるが、地盤９００の表面に対して傾斜するようにしてもよい。
そして、アンカー羽根８０ｅの羽根側縁８２ｅが一対の上ガイド突起３２ｅと一対の下ガイド突起４２ｅとに案内され、アンカー羽根８０ｗの羽根側縁８２ｗが一対の上ガイド突起３２ｗと一対の下ガイド突起４２ｗとに案内された状態で、アンカー本体１２０の地盤９００への打設を開始する（Ｓ３、図９の（ａ）および（ｂ）参照）。
そして、アンカー羽根８０ｅの羽根側縁８２ｅおよびアンカー羽根８０ｗの羽根側縁８２ｗが、それぞれ下ガイド材４０ｅおよび下ガイド材４０ｗから外れたところで、アンカー本体１２０の地盤９００への打設を停止する（Ｓ４、図１０参照）。
さらに、アンカー鞘管１１０内、およびアンカー鞘管１１０と凹部９１０との間に、土砂を投入する（Ｓ５、図示しない）。このとき、投入する土砂は、地盤９００を掘削した際に発生したもの、あるいは、他の場所から運搬したものであってもよい。 (Construction method)
8 to 10 illustrate an anchor device construction method according to an embodiment of the present invention. FIG. 8 is a flowchart, and FIG. 9A is an enlarged view of a part of the anchor device. FIG. 9B is an enlarged bottom view showing a part of the anchor device, and FIG. 10 is a front sectional view showing an enlarged part of the anchor device. Each drawing is schematically drawn, and the present invention is not limited to the drawn form.
In FIG. 8, first, a part of the inclined ground 900 is excavated to form a recess 910 for installing the anchor device 100 (see S1, FIG. 1 and FIG. 2).
Next, the anchor sheath tube 110 is placed in the recess 910 (see S2, FIG. 1 and FIG. 2). At this time, the north side plate 10n is arranged on the high side of the ground 900, and the south side plate 10s is arranged on the low side. At this time, the upper frame portion 11t and the lower frame portion 11b are parallel to the surface of the ground 900, but may be inclined with respect to the surface of the ground 900.
The blade side edge 82e of the anchor blade 80e is guided by the pair of upper guide protrusions 32e and the pair of lower guide protrusions 42e, and the blade side edge 82w of the anchor blade 80w is paired by the pair of upper guide protrusions 32w and the pair of lower guide protrusions 42e. In the state guided to 42w, the anchor body 120 starts to be placed on the ground 900 (S3, see FIGS. 9A and 9B).
Then, when the blade side edge 82e of the anchor blade 80e and the blade side edge 82w of the anchor blade 80w are separated from the lower guide material 40e and the lower guide material 40w, respectively, the placement of the anchor body 120 on the ground 900 is stopped ( S4, see FIG. 10).
Further, earth and sand are introduced into the anchor sheath tube 110 and between the anchor sheath tube 110 and the recess 910 (S5, not shown). At this time, the earth and sand to be thrown in may be generated when excavating the ground 900 or transported from another place.

（アンカー装置の設置状態）
アンカー装置１００は、前記施工方法によって施工されたものであるから、アンカー鞘管１１０は地盤９００内に埋め込まれ、アンカー本体１２０はアンカー鞘管１１０の内部に投入された土砂を貫通して地盤９００に設置されている。
このとき、上枠状部１１ｔおよび下枠状部１１ｂは地盤９００の表面に平行であって、アンカー本体１２０は地盤９００の表面に対して垂直になっている。
したがって、図示しないワイヤーに作用する外力は、アンカー本体１２０を、管上端７３が地盤９００と平行に低い方向（例えば、Ｓ方向）に倒れるように、引っ張ることになる（なお、正確には、アンカー本体１２０を地盤９００から引き抜こうとする力も発生する）。
そうすると、アンカー本体１２０のアンカー鞘管１１０から下方の範囲は、地盤９００によって支持され、アンカー本体１２０のアンカー鞘管１１０に包囲された範囲は、アンカー鞘管１１０内部に投入された土砂を介してアンカー鞘管１１０によって支持される。
このとき、アンカー鞘管１１０は、上回転防止材５０ｅ、５０ｗが地盤９００に押し込まれる方向の力を受け、下回転防止材６０ｅ、６０ｗが地盤９００から浮き上がる方向の力を受ける。 (Installation state of anchor device)
Since the anchor device 100 is constructed by the construction method, the anchor sheath tube 110 is embedded in the ground 900, and the anchor main body 120 penetrates the earth and sand thrown into the anchor sheath tube 110, and the ground 900 Is installed.
At this time, the upper frame portion 11t and the lower frame portion 11b are parallel to the surface of the ground 900, and the anchor main body 120 is perpendicular to the surface of the ground 900.
Therefore, an external force acting on a wire (not shown) pulls the anchor main body 120 so that the pipe upper end 73 falls down in a lower direction (for example, the S direction) parallel to the ground 900 (more precisely, the anchor A force for pulling out the main body 120 from the ground 900 is also generated).
Then, the range below the anchor sheath tube 110 of the anchor body 120 is supported by the ground 900, and the range surrounded by the anchor sheath tube 110 of the anchor body 120 is via the earth and sand introduced into the anchor sheath tube 110. Supported by the anchor sheath tube 110.
At this time, the anchor sheath tube 110 receives a force in a direction in which the upper rotation preventing materials 50e and 50w are pushed into the ground 900, and receives a force in a direction in which the lower rotation preventing materials 60e and 60w are lifted from the ground 900.

（効果）
アンカー装置は前記施工方法によって施工され、前記設置状態であるから、以下のような施工上の効果と、設置状態における力学的な効果とを有する。
（ａ）アンカー鞘管１１０は、地盤９００に形成された凹部９１０内に載置された後、土砂で埋め戻されるから、正確な姿勢に設置される。
（ｂ）また、アンカー本体１２０は、凹部９１０内に載置されたアンカー鞘管１１０内に土砂が投入される前に、アンカー本体１２０の上ガイド突起３２ｅ、３２ｗおよび下ガイド突起４２ｅ、４２ｗが視認可能な状態で、これらに案内されて打設されるから、正確な姿勢に設置される。
（ｃ）さらに、アンカー本体１２０に作用する力は、鋼管７０のアンカー鞘管１１０の下方にある範囲およびアンカー羽根８０ｅ、８０ｗによって地盤９００に直接伝達され、また、鋼管７０のアンカー鞘管１１０内にある範囲から投入された土砂を介してアンカー鞘管１１０に伝達され、さらに、アンカー鞘管１１０から投入された土砂を介して地盤９００に伝達されるから、大きな支持力を得ることができる。
（ｄ）さらに、南側板１０ｓの上側縁に設置された上回転防止材５０ｅ、５０ｗが投入された土砂を押し込み、北側板１０ｎの下側縁に設置された下回転防止材６０ｅ、６０ｗが投入された土砂を持ち上げるから、アンカー鞘管１１０の姿勢は維持される。 (effect)
Since the anchor device is constructed by the construction method and is in the installation state, it has the following construction effects and mechanical effects in the installation state.
(A) Since the anchor sheath tube 110 is placed in the recess 910 formed in the ground 900 and then backfilled with earth and sand, it is placed in an accurate posture.
(B) Further, the anchor main body 120 has the upper guide protrusions 32e and 32w and the lower guide protrusions 42e and 42w before the earth and sand are put into the anchor sheath tube 110 placed in the recess 910. Since it is guided and driven by these while being visible, it is installed in an accurate posture.
(C) Further, the force acting on the anchor main body 120 is directly transmitted to the ground 900 by the range below the anchor sheath tube 110 of the steel pipe 70 and the anchor blades 80e and 80w, and in the anchor sheath tube 110 of the steel pipe 70. Therefore, it is transmitted to the anchor sheath pipe 110 through the earth and sand thrown from a certain range, and further to the ground 900 via the earth and sand thrown from the anchor sheath pipe 110, so that a large supporting force can be obtained.
(D) Further, the earth and sand loaded with the upper rotation preventing materials 50e and 50w installed at the upper edge of the south side plate 10s are pushed in, and the lower rotation preventing materials 60e and 60w installed at the lower edge of the north side plate 10n are loaded. The lifted soil is lifted, so that the posture of the anchor sheath tube 110 is maintained.

なお、以上は、鋼管７０が上ガイド補強材３１および下ガイド補強材４１に接触しないものであるが、本発明はこれに限定するものではない。すなわち、鋼管７０は上ガイド補強材３１および下ガイド補強材４１の少なくとも一方に接触して、当該接触した部材とこれが設置された上ガイド材３０ｅ、３０ｗおよび下ガイド材４０ｅ、４０ｗの少なくとも一方とを介して、アンカー本体１２０に作用する力の一部が、アンカー鞘管１１０に直接伝達されるようにしてもよい。
さらに、アンカー羽根８０ｅ、８０ｗを上下方向に延長して、羽根上端８３ｅ、８３ｗを鋼管７０の管上端７３の近くにし、アンカー本体１２０が打設された状態で、羽根側縁８２ｅおよび羽根側縁８２ｗが、それぞれ上ガイド突起３２ｅ、３２ｗおよび下ガイド突起４２ｅ、４２ｗに係止するようにしてもよい。そうすると、アンカー本体１２０に作用する力の一部は、上ガイド突起３２ｅ、３２ｗおよび上ガイド材３０ｅ、３０ｗを介しておよび下ガイド突起４２ｅ、４２ｗおよび下ガイド材４０ｅ、４０ｗを介して、アンカー鞘管１１０に直接伝達されるようになる。 Although the steel pipe 70 does not contact the upper guide reinforcing material 31 and the lower guide reinforcing material 41 in the above, the present invention is not limited to this. That is, the steel pipe 70 contacts at least one of the upper guide reinforcing member 31 and the lower guide reinforcing member 41, and the contacted member and at least one of the upper guide members 30e and 30w and the lower guide members 40e and 40w on which the steel pipe 70 is installed. A part of the force acting on the anchor main body 120 may be directly transmitted to the anchor sheath tube 110 via the.
Furthermore, the anchor blades 80e and 80w are extended in the vertical direction so that the blade upper ends 83e and 83w are close to the tube upper end 73 of the steel pipe 70, and the anchor main body 120 is driven, the blade side edge 82e and the blade side edge 82w may be engaged with the upper guide protrusions 32e and 32w and the lower guide protrusions 42e and 42w, respectively. Then, a part of the force acting on the anchor main body 120 is anchor sheath through the upper guide protrusions 32e and 32w and the upper guide members 30e and 30w and the lower guide protrusions 42e and 42w and the lower guide members 40e and 40w. It is transmitted directly to the tube 110.

（変形例−１）
図１１は、本発明の実施の形態に係るアンカー装置の変形例−１を説明する一部を透過した側面図である。なお、各図は模式的に描かれたものであって、本発明は描かれた形態に限定するものではない。
図１１において、アンカー装置２００は、傾斜した地盤９００の一部を掘削して形成された凹部９１０に載置されるアンカー鞘管２１０と、アンカー鞘管２１０に包囲されて、地盤９００に打ち込まれるアンカー本体１２０と、を有している。
アンカー鞘管２１０は、上ガイド突起３２ｅ、３２ｗ（図９の（ａ）参照）の南北方向の位置が、下ガイド突起４２ｅ、４２ｗ（図９の（ｂ）参照）の南北方向の位置よりも北（上）寄りに位置し（下ガイド突起４２ｅ、４２ｗの南北方向の位置が上ガイド突起３２ｅ、３２ｗの南北方向の位置が、南（下）寄りに位置するに同じ）、これを除く構成はアンカー鞘管１１０に同じである。
したがって、アンカー装置２００では、アンカー本体１２０が、地盤９００の表面に対して、北（上）側に傾斜する。すなわち、地盤９００の状態に応じて、アンカー本体１２０を所望の角度だけ傾斜させて立設することが容易になる。 (Modification-1)
FIG. 11 is a partially transparent side view illustrating Modification Example 1 of the anchor device according to the embodiment of the present invention. Each drawing is schematically drawn, and the present invention is not limited to the drawn form.
In FIG. 11, the anchor device 200 is placed in a recess 910 formed by excavating a part of an inclined ground 900, and surrounded by the anchor sheath pipe 210 and driven into the ground 900. Anchor body 120.
In the anchor sheath tube 210, the position of the upper guide protrusions 32e, 32w (see FIG. 9A) in the north-south direction is more than the position of the lower guide protrusions 42e, 42w (see FIG. 9B) in the north-south direction. Configurations that are located nearer to the north (upper) (the positions of the lower guide protrusions 42e and 42w in the north-south direction are the same as the positions of the upper guide protrusions 32e and 32w in the north-south direction are closer to the south (lower)). Is the same as the anchor sheath tube 110.
Therefore, in the anchor device 200, the anchor main body 120 is inclined toward the north (upper) side with respect to the surface of the ground 900. That is, according to the state of the ground 900, it becomes easy to stand the anchor main body 120 at a desired angle.

（変形例−２）
図１２は、本発明の実施の形態に係るアンカー装置の変形例−２を説明する一部を透過した側面図である。なお、各図は模式的に描かれたものであって、本発明は描かれた形態に限定するものではない。
図１２において、アンカー装置３００は、地盤９００を掘削して形成された凹部９１０に載置されるアンカー鞘管３１０と、アンカー鞘管３１０に包囲されて、地盤９００に打ち込まれるアンカー本体１２０と、を有している。
アンカー鞘管３１０は、上ガイド突起３２ｅ、３２ｗ（図９の（ａ）参照）の南北方向の位置が、下ガイド突起４２ｅ、４２ｗ（図９の（ｂ）参照）の南北方向の位置よりも南（下）寄りに位置し（下ガイド突起４２ｅ、４２ｗの南北方向の位置が上ガイド突起３２ｅ、３２ｗの南北方向の位置が、北（上）寄りに位置するに同じ）、これを除く構成はアンカー鞘管１１０に同じである。
したがって、アンカー装置３００では、アンカー本体１２０が、地盤９００の表面に対して、南（下）側に傾斜する。すなわち、地盤９００の状態に応じて、アンカー本体１２０を所望の角度だけ傾斜させて立設することが容易になる。 (Modification-2)
FIG. 12 is a partially transparent side view for explaining Modification Example 2 of the anchor device according to the embodiment of the present invention. Each drawing is schematically drawn, and the present invention is not limited to the drawn form.
In FIG. 12, the anchor device 300 includes an anchor sheath tube 310 placed in a recess 910 formed by excavating the ground 900, an anchor body 120 surrounded by the anchor sheath tube 310 and driven into the ground 900, have.
In the anchor sheath tube 310, the position of the upper guide protrusions 32e and 32w (see FIG. 9A) in the north-south direction is more than the position of the lower guide protrusions 42e and 42w (see FIG. 9B) in the north-south direction. Except for this, it is located closer to the south (lower) (the position of the lower guide protrusions 42e, 42w in the north-south direction is the same as the position of the upper guide protrusions 32e, 32w in the north-south direction). Is the same as the anchor sheath tube 110.
Therefore, in the anchor device 300, the anchor main body 120 is inclined to the south (downward) side with respect to the surface of the ground 900. That is, according to the state of the ground 900, it becomes easy to stand the anchor main body 120 at a desired angle.

本発明は以上の構成であって、部材を変形や破損することなく、アンカー本体とアンカー鞘管とを予定した姿勢に正確に設置することができるから、傾斜した地盤に限定されることなく、各種地盤に設置されるアンカー装置として広く利用することができる。 The present invention is configured as described above, and without being deformed or damaged, the anchor main body and the anchor sheath tube can be accurately installed in a predetermined posture, so that the present invention is not limited to an inclined ground, It can be widely used as an anchor device installed on various grounds.

１０ｎ：北側板
１０ｓ：南側板
１１ｂ：下枠状部
１１ｔ：上枠状部
１２ｎ：北東端材
１２ｓ：南東端材
１３ｎ：北西端材
１３ｓ：南西端材
１４ｅ：東上連結材
１４ｗ：西上連結材
１５ｅ：東下連結材
１５ｗ：西下連結材
１６ｅ：東斜材
１６ｗ：西斜材
２０ｅ：東底板
２０ｋ：開口部
２０ｗ：西底板
３０ｅ：上ガイド材
３０ｗ：上ガイド材
３１：上ガイド補強材
３２ｅ：上ガイド突起
３２ｗ：上ガイド突起
３３ｅ：上ガイド取付板
３３ｗ：上ガイド取付板
３４ｅ：上ガイド取付板
３４ｗ：上ガイド取付板
４０ｅ：下ガイド材
４０ｗ：下ガイド材
４１：下ガイド補強材
４２ｅ：下ガイド突起
４２ｗ：下ガイド突起
４３ｅ：下ガイド取付板
４３ｗ：下ガイド取付板
４４ｅ：下ガイド取付板
４４ｗ：下ガイド取付板
５０ｅ：上回転防止材
５０ｗ：上回転防止材
６０ｅ：下回転防止材
６０ｗ：下回転防止材
７０：鋼管
７１：管下端
７２：縮径部
７３：管上端
７４：ボルト
７５：ナット
８０ｅ：アンカー羽根
８０ｗ：アンカー羽根
８１ｅ：羽根下端
８１ｗ：羽根下端
８２ｅ：羽根側縁
８２ｗ：羽根側縁
８３ｅ：羽根上端
８３ｗ：羽根上端
１００：アンカー装置
１１０：アンカー鞘管
１２０：アンカー本体
２００：アンカー装置
２１０：アンカー鞘管
３００：アンカー装置
３１０：アンカー鞘管
９００：地盤
９１０：凹部 10n: North side plate 10s: South side plate 11b: Lower frame-like portion 11t: Upper frame-like portion 12n: Northeast end material 12s: Southeast end material 13n: Northwest end material 13s: Southwest end material 14e: East upper connection material 14w: West upper connection Material 15e: East down connecting material 15w: West down connecting material 16e: East oblique material 16w: West oblique material 20e: East bottom plate 20k: Opening 20w: West bottom plate 30e: Upper guide material 30w: Upper guide material 31: Upper guide reinforcement Material 32e: Upper guide protrusion 32w: Upper guide protrusion 33e: Upper guide attachment plate 33w: Upper guide attachment plate 34e: Upper guide attachment plate 34w: Upper guide attachment plate 40e: Lower guide member 40w: Lower guide member 41: Lower guide reinforcement Material 42e: Lower guide protrusion 42w: Lower guide protrusion 43e: Lower guide attachment plate 43w: Lower guide attachment plate 44e: Lower guide attachment plate 44w: Lower guide attachment plate 50e: Upper rotation prevention member 50w: Upper Anti-rotation material 60e: Lower rotation prevention material 60w: Lower rotation prevention material 70: Steel pipe 71: Pipe lower end 72: Reduced diameter portion 73: Pipe upper end 74: Bolt 75: Nut 80e: Anchor blade 80w: Anchor blade 81e: Blade lower end 81w : Blade lower edge 82e: blade side edge 82w: blade side edge 83e: blade upper edge 83w: blade upper end 100: anchor device 110: anchor sheath tube 120: anchor body 200: anchor device 210: anchor sheath tube 300: anchor device 310: anchor Sheath tube 900: Ground 910: Recess

Claims

An anchor sheath tube placed in a recess formed by excavating the ground;
An anchor body surrounded by the anchor sheath tube and driven into the ground,
The anchor sheath tube is
A pair of rectangular side surfaces having an upper edge, a lower edge, a left edge and a right edge; and
At both ends of the pair of side members, a pair of upper connecting members that connect the upper edges, and
At both ends of the pair of side members, a pair of lower connecting members that connect the lower edges to each other;
A pair of upper guide members connecting the upper edges of the pair of side members in the longitudinal direction;
A pair of upper guide protrusions formed on each of the pair of upper guide members and facing each other;
An upper guide reinforcing member for connecting the pair of upper guide members;
A pair of lower guide members connecting the lower edges of each of the pair of side members in the longitudinal direction;
A pair of lower guide protrusions formed on each of the pair of lower guide members and facing each other;
A lower guide reinforcement connecting the pair of lower guide members;
One bottom plate installed near the one lower connecting member on the lower edge of each of the pair of side members;
The other bottom plate installed near the other lower connecting member of the lower edge of each of the pair of side members,
The anchor body is
An anchor tube body having a reduced diameter lower end, and a pair of anchor blades fixed to face the side surface of the anchor tube body,
With the anchor sheath tube placed in the recess, a side edge of the anchor blade is guided by the upper guide protrusion between the pair of upper guide members, and the pair of lower guide members In between, the edge of the anchor blade is guided by the lower guide projection, passes through an opening formed between the one bottom plate and the other bottom plate, and the anchor body is driven into the ground. An anchor device characterized by that.

The pair of side members are corrugated steel sheets, and an upper edge and a lower edge of one side member of the pair of side members are in the direction of the other side member of the pair of side members. The anchor device according to claim 1, wherein the anchor device is bent.

3. The anchor according to claim 1, wherein an imaginary line connecting the center of the pair of upper guide protrusions and the center of the pair of lower guide protrusions is inclined with respect to the pair of upper connecting members. apparatus.

The distance between the upper end of the pair of anchor blades and the upper end of the anchor pipe body is longer than the distance between the upper edge of the pair of side members and the lower edge of the pair of side members. The anchor apparatus as described in any one of 1-3.

An anchor device construction method comprising an anchor sheath tube placed in a recess formed by excavating the ground, and an anchor body surrounded by the anchor sheath tube and driven into the ground,
The anchor sheath tube is
A pair of rectangular side surfaces having an upper edge, a lower edge, a left edge and a right edge; and
At both ends of the pair of side members, a pair of upper connecting members that connect the upper edges, and
At both ends of the pair of side members, a pair of lower connecting members that connect the lower edges to each other;
A pair of upper guide members connecting the upper edges of the pair of side members in the longitudinal direction;
A pair of upper guide protrusions formed on each of the pair of upper guide members and facing each other;
An upper guide reinforcing member for connecting the pair of upper guide members;
A pair of lower guide members connecting the lower edges of each of the pair of side members in the longitudinal direction;
A pair of lower guide protrusions formed on each of the pair of lower guide members and facing each other;
A lower guide reinforcement connecting the pair of lower guide members;
One bottom plate installed near the one lower connecting member on the lower edge of each of the pair of side members;
The other bottom plate installed near the other lower connecting member of the lower edge of each of the pair of side members,
The anchor body is
An anchor tube body having a reduced diameter lower end, and a pair of anchor blades fixed to face the side surface of the anchor tube body,
Excavating the ground to form a recess;
Placing the anchor sheath tube in the recess;
Between the pair of upper guide members, the side edge of the anchor blade is guided by the upper guide protrusion, and between the pair of lower guide members, the side edge of the anchor blade is the lower guide protrusion. Passing through an opening formed between the one bottom plate and the other bottom plate and driving the anchor body into the ground,
Throwing earth and sand between the recess and the outside of the anchor sheath tube, and between the inside of the anchor sheath tube and the anchor body;
An anchor device construction method characterized by comprising:

The distance between the upper end of the anchor tube and the upper end of the anchor blade is longer than the distance between the pair of upper guide members and the pair of lower guide members,
6. The anchor device construction method according to claim 5, wherein the anchor main body is driven until an upper end of the anchor blade is below the pair of lower guide members.