JPH061490U

JPH061490U - High efficiency bottom expanding bucket and related construction method

Info

Publication number: JPH061490U
Application number: JP5542692U
Authority: JP
Inventors: 昇大山
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-06-10
Filing date: 1992-06-10
Publication date: 1994-01-11

Abstract

(57)【要約】〔目的〕従来の方法と違い、拡底時に液状の土砂を作
らず。かつ、拡底時に発生する土砂を効率良く排出する
機具と工法を提供する。〔構成〕拡底バケットの底部ボトム（３）に拡幅翼
（２）と連動するスクーパー（１）を設け、孔底の土砂
をスクーパー（１）にて掬い上げるとともに、拡幅エッ
ヂ（８）の切削角度をサブアーム（７）にてコントロー
ルし、土砂の液化を最小限に抑える。 (57) [Summary] [Purpose] Unlike conventional methods, liquid sand is not created when the bottom is expanded. Moreover, it provides a tool and a construction method for efficiently discharging the sediment generated when the bottom is expanded. [Structure] A scooper (1) interlocking with the widening blades (2) is provided on the bottom bottom (3) of the widening bucket to scoop the earth and sand at the bottom of the hole with the scooper (1) and the cutting angle of the widening edge (8). Is controlled by the sub arm (7) to minimize the liquefaction of soil and sand.

Description

【考案の詳細な説明】〔０００１〕〔産業上の利用分野〕この考案な建造物の基礎杭として使用されているコンクリート場所打杭の省資源を目的に開発された拡底杭工法に関するものである。Description: [0001] [Industrial field of application] The present invention relates to a bottom-expanded pile construction method developed for the purpose of resource saving of concrete cast-in-place piles used as foundation piles of the present invention. .

〔０００２〕〔従来の技術〕従来の拡底バケットの底部ボトムは単なる円型の一枚ものであり．拡翼時に拡翼部の土砂の採取が困難であった。 [0002] [Prior Art] The bottom bottom of a conventional bottom-expanding bucket is simply a circular piece. It was difficult to collect soil from the expanding part when expanding the wings.

〔０００３〕〔考案が解決しようとする課題〕これは次の欠点があった。 [0003] [Problems to be solved by the invention] This has the following drawbacks.

（イ）、底部ボトムが円型不変であるため拡翼時、拡翼部の土砂はバケット内に取り込むことが非常に困難であった。(A) Since the bottom bottom is circular invariant, it was very difficult to take the soil in the expanding blade into the bucket when expanding the blade.

（ロ）、拡翼にて削り取った土砂が閉翼に伴って外部へ流出することが多かった（ハ）、孔底部に沈澱した流動性のある土砂をバケット内に取り込むことは特に困難であった。(B) The earth and sand scraped off by the expanding blades often flowed to the outside with the closing blades (c). It was particularly difficult to take in the fluidized earth and sand that had settled at the bottom of the holes into the bucket. It was

（ニ）従来の拡幅エッヂは角度が不変のため土砂を水液中に溶解させてしまいバケットによる排出は非常に困難であった。(D) Since the angle of the conventional widening edge does not change, the sand and sand are dissolved in the water liquid and it is very difficult to discharge it with a bucket.

（ホ）一度、水液中に溶解した土砂を再度、土砂の形にするには多大の時間を必要とした。(E) Once, it took a lot of time to reconstruct the sediment once it was dissolved in water.

本案はこれらの欠点を解決するために考案されたものである。 The present invention is designed to solve these drawbacks.

〔０００４〕〔課題を解決するための手段〕本体ボトム（３）に拡幅翼（２）の支点と中心を同じくする支点を持つスクーパー（１）１対を設け、スクーパー（１）の外周部に拡幅翼（２）と連動するためのピン穴（５）を開け、スクーパー（１）と拡幅翼（２）とを一体化せしめる。 [Means for Solving the Problem] A pair of scooper (1) having a fulcrum having the same center as the fulcrum of the widening blade (2) is provided on the main body bottom (3), and the outer peripheral portion of the scooper (1) is provided. A pin hole (5) for interlocking with the widening wing (2) is opened to integrate the scooper (1) and the widening wing (2).

又、土砂が水液中に溶解せぬよう最適の切削角度を保つようサブアーム（７）により保持される拡幅エッヂ（８）本考案は以上のような構成による拡底バケットである。Further, the widening edge (8) which is held by the sub-arm (7) so as to maintain the optimum cutting angle so that the earth and sand are not dissolved in the water liquid.

〔０００５〕〔作用〕拡底バケットを拡翼にすると連動ピン（６）によりスクーパー（１）が本体ボトム（３）より引出され拡翼部の底部の土砂を掬い上げる。閉翼にすると連動ピン（６）により押し込まれ単なる円型ボトムとなる。 [Operation] When the bottom expanding bucket is expanded, the interlocking pin (6) pulls out the scooper (1) from the main body bottom (3) and scoops up the soil at the bottom of the expanding blade. When it is closed, it is pushed in by the interlocking pin (6) and it becomes a simple circular bottom.

又、板ばねストッパー（９）により、ボトムを開いてもボトムの円型は保持され、閉じると再び拡幅翼（２）とスクーパー（１）が連動ピンにより一体化、拡幅操作が行えるようになる。Further, the leaf spring stopper (9) keeps the circular shape of the bottom even when the bottom is opened, and when the bottom is closed, the widening blade (2) and the scooper (1) are integrated again by the interlocking pin, and the widening operation can be performed. .

この時、拡幅エッヂ（８）はサブアーム（７）により、拡幅に応じた最適の切削角度にコントロールされる。At this time, the widening edge (8) is controlled by the sub-arm (7) to an optimum cutting angle according to the widening.

〔０００６〕〔実施例〕以下、本案の実施例にていて説明する。 [0006] [Example] Hereinafter, an example of the present invention will be described.

（イ）本体ボトム（３）に拡幅翼（２）の回転軸と中心を同じくする支点をもつスクーパー（１）を１対を設ける。(A) A pair of scoopers (1) having a fulcrum centered on the rotation axis of the widening blade (2) is provided on the bottom (3) of the main body.

（ロ）スクーパー（１）外周部に拡幅翼（２）と運動を同じくするための連動ピン穴（５）を開ける（ハ）拡幅翼（２）最下端にスクーパー（１）と運動を同じくするための連動ピン（６）を取り付ける。(B) Make an interlocking pin hole (5) on the outer periphery of the scooper (1) for the same movement as the widening blade (2). (C) Same movement as the scooper (1) at the lowermost end of the widening blade (2). Install the interlocking pin (6) to do this.

（ニ）作動時にスクーパー（１）が土砂のため浮き上がらぬよう、本体ボトム（３）にガイド（１０）を設ける。(D) A guide (10) is provided on the bottom (3) of the main body so that the scooper (1) does not float up due to earth and sand during operation.

（ホ）ガイドの端部、ボトム中央部に閉翼時に円型を保つようにする、板ばねストッパー（９）を設ける。(E) A leaf spring stopper (9) is provided at the end of the guide and the center of the bottom so as to maintain a circular shape when the blade is closed.

（ヘ）拡幅エッヂ（８）と拡幅翼（２）をサブアーム（７）を介して取り付ける。(F) Attach the widening edge (8) and the widening wing (2) via the sub-arm (7).

本案は以上のような構造で、これを使用するときは、従来の拡底バケット同様にアースドリル機に取り付け、所定の深度迄堀削された孔底に降し、アースドリル機の油圧を利用し、拡幅堀削を行う、又、土砂排出時は孔底で閉翼されたバケットを地上に引き上げたのち、本体ボトム（３）を開いて土砂の排土を行う。This proposal has the structure as described above.When using this, it is attached to the earth drill machine like the conventional bottom expanding bucket, lowered to the hole bottom excavated to the predetermined depth, and the oil pressure of the earth drill machine is used. Widening excavation is performed, and when discharging sediment, the bucket closed at the bottom of the hole is pulled up to the ground, and then the main body bottom (3) is opened to discharge soil.

この時は普通のアースドリル機の堀削バケットの操作と同一である。この動作を繰り返して所定の孔径にまで拡幅し、目的を達するものである。At this time, it is the same as the operation of the excavation bucket of a normal earth drill machine. By repeating this operation, the diameter is expanded to a predetermined hole diameter to achieve the purpose.

〔０００７〕〔考案の効果〕本考案により、拡底杭の施工が容易、かつ確実に行なえるようになった。同時に孔璧測定が完全に実施出来るようになり、拡底工法に信頼が増した。 [0007] [Effect of the Invention] According to the present invention, it is possible to easily and surely perform the construction of the bottom expanding pile. At the same time, it became possible to perform hole wall measurement completely, and the reliability of the bottom expanding method increased.

また、普通の拡底杭の沈澱物の処理用に使用しても絶大な効果を上げることが出来る。In addition, even if it is used for treating the sediments of ordinary bottom piles, it is possible to obtain a great effect.

[Brief description of drawings]

〔図１〕本考案の閉じた状態の斜視図である。〔図２〕本考案の閉じた状態の下部より見上げた図であ
る。〔図３〕本考案の底部ボトムを開いた状態、排土の状態
の斜視図である〔図４〕本考案の開いた状態、拡幅状態の斜視図であ
る。〔図５〕本考案の開いた状態を上部より見下した図であ
る。〔図６〕本考案の開いた状態を下部より見上げた図であ
る。〔図７〕スクーパーのガイドの板ばねストッパーの既略
図である。〔符号の説明〕１スクーパー２拡幅翼３本体ボトム４底部土砂取込口．及びシャッター５連動ピン穴６連動ピン７サブアーム８拡幅エッヂ９板ばねストッパー１０ガイド１１サイドシャッター１２駆動用油圧シリンダーFIG. 1 is a perspective view of the present invention in a closed state. FIG. 2 is a view looking up from the lower portion of the present invention in a closed state. FIG. 3 is a perspective view of a bottom bottom open state of the present invention and a soil discharging state. FIG. 4 is a perspective view of the present invention open state and a widened state. FIG. 5 is a top view of the open state of the present invention. [FIG. 6] A view of the open state of the present invention as seen from below. FIG. 7 is a schematic view of a leaf spring stopper of a scooper guide. [Explanation of reference numerals] 1 scooper 2 widening blade 3 main body bottom 4 bottom sediment intake. And shutter 5 interlocking pin hole 6 interlocking pin 7 sub-arm 8 widening edge 9 leaf spring stopper 10 guide 11 side shutter 12 hydraulic cylinder for driving

Claims

[Scope of utility model registration request]

[Claim 1] An improvement of a commonly used earth drill type bottom expanding bucket. Not used in other bottom expanding buckets. Scooper with scooping function (1)
A bottom bottom (3) that can be opened and closed, characterized in that it is attached so that it can be interlocked with the widening blade (2). And a high-efficiency bottom expanding bucket equipped with a widening edge (4) that changes the cutting angle by opening and closing blades

[Claim 2] The high-efficiency bottom expanding bucket of claim 1. And open-close type bottom, bottom expanding method using variable widening edge,
And related construction methods