JP2985068B2 - Excavation prevention type excavation type pile driver - Google Patents
Excavation prevention type excavation type pile driverInfo
- Publication number
- JP2985068B2 JP2985068B2 JP9240358A JP24035897A JP2985068B2 JP 2985068 B2 JP2985068 B2 JP 2985068B2 JP 9240358 A JP9240358 A JP 9240358A JP 24035897 A JP24035897 A JP 24035897A JP 2985068 B2 JP2985068 B2 JP 2985068B2
- Authority
- JP
- Japan
- Prior art keywords
- excavation
- leader
- steel pipe
- cover
- spiral member
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Earth Drilling (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、スパイラル部材
（アースドリル）により地中を掘削しながら、同スパイ
ラル部材を内挿された円筒状杭部材の打込みを行なえる
ようにした掘削式杭打機に関し、特に排土の飛散防止を
図ったものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an excavation type pile driver in which a cylindrical member having a spiral member inserted therein can be driven while excavating the ground with a spiral member (earth drill). In particular, it is intended to prevent the scattering of earth removal.
【０００２】[0002]
【従来の技術】従来の杭打機の一例として、図５に示す
ようなものがあり、走行式杭打機１の上部の旋回台２に
おけるブラケット３の先端部に、リーダー４が下端部を
軸支されるようにして立設され、同リーダー４の上端部
から吊り下ろされ同リーダー４に案内されて昇降しうる
駆動機構（モーター）５により、掘削用スパイラル部材
６が回転可能に垂下されている。2. Description of the Related Art An example of a conventional pile driver is shown in FIG. 5, in which a leader 4 has a lower end at a tip of a bracket 3 of a swivel 2 at an upper part of a traveling pile driver 1. The excavation spiral member 6 is rotatably hung by a drive mechanism (motor) 5 which is supported by the leader 4, which is suspended from the upper end of the leader 4, and which can be guided up and down by the leader 4. ing.
【０００３】そして、駆動機構５のケーシング下端から
垂下されてスパイラル部材６を覆う蛇腹構造の筒状カバ
ー７が、その下端をリーダー４の下端部から水平に張り
出したリング部材８に係止されるようになっている。こ
の筒状カバー７はスパイラル部材６から剥離した排土が
風で近隣へ飛散するのを防止するためのもので、同筒状
カバー７の振れ止め用ワイヤ９が、リーダー４の頂部か
ら筒状カバー７に上下方向へ列設された多数の有孔ガイ
ド10を通ってリング部材８上の滑車11へ到り、さらに他
の滑車を経由してウェイト12により緊張するようになっ
ている。[0003] A bellows-shaped tubular cover 7 which is hung down from the lower end of the casing of the drive mechanism 5 and covers the spiral member 6 is locked by a ring member 8 whose lower end extends horizontally from the lower end of the leader 4. It has become. The tubular cover 7 is for preventing the soil discharged from the spiral member 6 from scattering to the vicinity by wind, and the anti-sway wire 9 of the tubular cover 7 is formed in a cylindrical shape from the top of the leader 4. The cover 7 reaches a pulley 11 on the ring member 8 through a multiplicity of perforated guides 10 arranged vertically in the cover 7, and is further tightened by a weight 12 via another pulley.
【０００４】そして、スパイラル部材６の掘削による排
土は地上に吐出されるようになっており、筒状カバー７
の内部までスパイラル部材６に付着したまま上昇した排
土も、同スパイラル部材６から剥離すれば地上に落下す
ることになる。このようにして、スパイラル部材６によ
る掘削が終了してから、その掘削孔に図示しないクレー
ンで杭部材が挿入されるようになっている。The excavated earth from the spiral member 6 is discharged to the ground, and the cylindrical cover 7 is excavated.
The soil discharged to the inside while being attached to the spiral member 6 will fall to the ground if it is separated from the spiral member 6. In this way, after excavation by the spiral member 6 is completed, the pile member is inserted into the excavation hole by a crane (not shown).
【０００５】ところで、上述のようにスパイラル部材６
による掘削作業とクレーンによる杭部材の挿入とを分け
て行なうのでは作業能率が低下するので、図６に示すよ
うに、スパイラル部材６を内挿された円筒状の杭部材13
を、スパイラル部材６の回転による掘削に伴って地中に
挿入する形式の杭打機も、従来から用いられている。そ
して、円筒状杭部材13の内部のスパイラル部材が掘削し
た排土は、排土ホッパ14に貯溜されるようになってい
る。By the way, as described above, the spiral member 6
If the excavation work by the crane and the insertion of the pile member by the crane are performed separately, the work efficiency is reduced. Therefore, as shown in FIG. 6, the cylindrical pile member 13 in which the spiral member 6 is inserted is used.
Has been conventionally used, which is inserted into the ground along with excavation by rotation of the spiral member 6. The soil excavated by the spiral member inside the cylindrical pile member 13 is stored in the earth discharging hopper 14.
【０００６】[0006]
【発明が解決しようとする課題】ところで、図６に示す
ような従来の杭打機では、排土ホッパ14の上方までスパ
イラル部材６に付着し上昇した排土は、風で吹き飛ばさ
れて近隣に迷惑をかけることになる。そこで排土ホッパ
14よりも上方でスパイラル部材６を覆う筒状カバーの装
着が考えられるが、排土ホッパ14の上部の鋼管15はスパ
イラル部材６を通すガイドになているので、同鋼管15よ
りも上方でスパイラル部材６から剥離した排土は上記筒
状カバーの内部に貯溜し、その排出が面倒になるという
問題点がある。By the way, in the conventional pile driving machine as shown in FIG. 6, the discharged soil that has adhered to the spiral member 6 up to the upper side of the discharging hopper 14 is blown off by the wind to be nearby. You will be annoying. So the dumping hopper
Although it is conceivable to attach a cylindrical cover that covers the spiral member 6 above the steel pipe 15, since the steel pipe 15 above the discharge hopper 14 serves as a guide for passing the spiral member 6, the spiral pipe above the steel pipe 15 is used. There is a problem that the discharged soil separated from the member 6 is stored inside the cylindrical cover, and the discharge becomes troublesome.
【０００７】本発明は上述のような問題点の解消を図ろ
うとするもので、スパイラル部材による掘削と円筒状杭
部材の打込みとを同時に行なう杭打機において、排土ホ
ッパよりも上方で排土の飛散を十分に防止できるように
するとともに、スパイラル部材から剥離した排土の処理
を適切に行なえるようにした排土飛散防止型掘削式杭打
機を提供することを課題とする。SUMMARY OF THE INVENTION The present invention is intended to solve the above-mentioned problems, and in a pile driving machine which simultaneously performs excavation by a spiral member and driving of a cylindrical pile member, discharges the soil above a discharge hopper. It is an object of the present invention to provide an earth-discharge-prevention-type excavation-type pile driving machine capable of sufficiently preventing scattering of soil and appropriately performing the processing of earth removal peeled from a spiral member.
【０００８】[0008]
【課題を解決するための手段】前述の課題を解決するた
め、本発明の排土飛散防止型掘削式杭打機は、杭打機上
部の旋回台におけるブラケット先端部に立設されたリー
ダーと、同リーダーの頂部から吊り下ろされ同リーダー
に案内されて昇降しうる駆動機構と、同駆動機構の鉛直
回転軸に連結されて回転可能に垂下された掘削用スパイ
ラル部材と、同スパイラル部材を内挿された鋼管を上部
に有して上記リーダーに案内されながら昇降しうる排土
ホッパと、上記スパイラル部材を内挿されて地中へ進入
しうる円筒状杭部材の上端部を拘束すべく上記排土ホッ
パの下端開口部に装着された円環状部材とをそなえ、上
記排土ホッパよりも上方で上記スパイラル部材を覆う伸
縮可能の筒状カバーが、上記駆動機構のケーシング下端
から垂下され上記鋼管の上半部までを覆うように配設さ
れて、同筒状カバーの下端部が上記鋼管の外周面から離
隔した状態に保持されるとともに、上記鋼管よりも上方
で上記スパイラル部材から剥離し上記筒状カバー内を落
下する排土を受けるべく、上記鋼管の下部外周に沿い、
上記排土ホッパの上面部分に落下排土貯溜スペースが形
成されていることを特徴としている。SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, an excavation-prevention-type excavation-type pile driver according to the present invention is provided with a leader standing upright on a tip of a bracket on a swivel table above a pile driver. A drive mechanism that can be suspended from the top of the leader and guided by the leader to move up and down, a drilling spiral member rotatably suspended by being connected to a vertical rotation shaft of the drive mechanism, and the spiral member inside. An earth removal hopper that has an inserted steel pipe at the top and can be raised and lowered while being guided by the leader, and the above-described spiral member is inserted to restrain the upper end of a cylindrical pile member that can enter the ground. An expandable tubular cover having an annular member attached to the lower end opening of the discharging hopper and covering the spiral member above the discharging hopper is suspended from a casing lower end of the drive mechanism, and Disposed so as to cover up to the upper half of the pipe, the lower end of the tubular cover is kept apart from the outer peripheral surface of the steel pipe, and is separated from the spiral member above the steel pipe. Along the outer periphery of the lower part of the steel pipe to receive the earthfall that falls inside the cylindrical cover,
A drop discharge storage space is formed on an upper surface of the discharge hopper.
【０００９】上述の本発明の排土飛散防止型掘削式杭打
機では、スパイラル部材の回動降下による掘削が行なわ
れてから、排土ホッパ上の鋼管よりも上方へ上記スパイ
ラル部材の掘削部分が上昇した際に、同スパイラル部材
から剥離し落下する排土は、上記筒状カバーで覆われて
いるため風による飛散を防止されるようになる。In the above-mentioned excavation-prevention type excavation type pile driver according to the present invention, after excavation is performed by rotating and lowering the spiral member, the excavation portion of the spiral member is raised above the steel pipe on the excavation hopper. When the soil rises, the earth removal that separates and falls from the spiral member is covered with the cylindrical cover, and thus is prevented from being scattered by the wind.
【００１０】このようにして、上記筒状カバー内に沿い
落下した排土は、上記排土ホッパの上面部分で上記鋼管
の外周に沿い配設された落下排土貯溜スペースに適切に
貯溜されるようになる。[0010] In this way, the soil discharged along the inside of the cylindrical cover is appropriately stored in the dropped soil storage space arranged along the outer periphery of the steel pipe at the upper surface of the soil discharging hopper. Become like
【００１１】そして、上記筒状カバーは、上記鋼管の上
半部までを覆っていて、同鋼管の下半部では同筒状カバ
ーの下端と排土ホッパ上面との間に隙間があいているの
で、上記落下排土貯溜スペースに貯溜された排土の取り
出し作業は容易に行なわれる。The tubular cover covers the upper half of the steel pipe, and a gap is formed between the lower end of the tubular cover and the upper surface of the discharge hopper in the lower half of the steel pipe. Therefore, the work of taking out the discharged soil stored in the drop discharged storage space can be easily performed.
【００１２】また、上記筒状カバーの下端と上記排土ホ
ッパの上面との隙間を取り囲む囲壁が着脱可能に設けら
れていると、この僅かな隙間からの強風による排土飛散
も的確に防止されるようになる。。Further, if an enclosing wall surrounding the gap between the lower end of the cylindrical cover and the upper surface of the earth discharging hopper is detachably provided, the earth scattered by the strong wind from the slight gap is accurately prevented. Become so. .
【００１３】さらに、本発明の排土飛散防止型掘削式杭
打機は、上記筒状カバーが蛇腹構造を有して、同カバー
の両側面において上下方向に列設された多数の有孔ガイ
ドに挿通される振れ止め用ワイヤが設けられ、同ワイヤ
が、上記リーダーの頂部から上記多数の有孔ガイドを経
由して上記排土ホッパ上面の滑車へ導かれるとともに、
さらに同ワイヤが上記旋回台におけるリーダー支持用ブ
ラケット上の滑車と、上記旋回台上のリーダー起倒用ガ
ントリーにおける滑車とを経由して下方へ延在し、同ワ
イヤ下端にウェイトが懸吊されたことを特徴としてい
る。Further, in the excavation-prevention type excavation type pile driver according to the present invention, the cylindrical cover has a bellows structure, and a plurality of perforated guides vertically arranged on both side surfaces of the cover. Is provided, and the wire is guided from the top of the leader to the pulley on the top surface of the discharging hopper via the plurality of perforated guides,
Further, the wire extended downward via a pulley on the leader support bracket in the swivel base and a pulley in the leader raising / lowering gantry on the swivel base, and a weight was suspended at the lower end of the wire. It is characterized by:
【００１４】上述のように、上記筒状カバーが蛇腹構造
を有して、同カバーの振れ止め用ワイヤが上記リーダー
の頂部から同カバー側面の有孔ガイドを経由し排土ホッ
パ上面の滑車まで導かれた後、杭打機の旋回台における
リーダー支持用ブラケット上の滑車まで降下してから、
リーダー起倒用ガントリーにおける滑車まで一旦上昇
し、ついで同滑車から下降した上記ワイヤの下端にウェ
イトが懸吊されていると、同ワイヤの掛け回しによって
杭打作業に支障をきすことがなく、しかも蛇腹構造の筒
状カバーの伸縮の際の案内が、上記ワイヤにより適切に
行なわれるようになる。As described above, the cylindrical cover has a bellows structure, and the anti-sway wire of the cover extends from the top of the leader to the pulley on the top surface of the soil discharging hopper through the perforated guide on the side surface of the cover. After being guided, descend to the pulley on the leader support bracket on the turntable of the pile driver,
If the weight is suspended at the lower end of the wire that has risen once to the pulley in the gantry for raising and lowering the leader, and then descended from the pulley, there is no hindrance to the pile driving work by hanging the wire, and Guidance during expansion and contraction of the tubular cover having the bellows structure is appropriately performed by the wire.
【００１５】上述の本発明の杭打機では、順次地中に挿
入される杭部材の相互間の溶接による結合のため、同杭
打機の旋回台におけるリーダー支持用ブラケットの先端
部には溶接機などが配置されるが、上記ワイヤにテンシ
ョンをかけるためのウェイトが、上記旋回台におけるリ
ーダー起倒用ガントリーを利用して懸吊されるので、上
記溶接機などの配置の妨げにならなず、杭打機の操縦の
邪魔にならない利点もある。In the above-described pile driving machine according to the present invention, since the pile members to be sequentially inserted into the ground are connected by welding, the tip of the leader supporting bracket on the swivel base of the pile driving machine is welded. Machine, etc., but the weight for applying tension to the wire is suspended using the gantry for raising and lowering the leader in the swivel base, so that it does not hinder the arrangement of the welding machine and the like. Another advantage is that it does not hinder the operation of the pile driver.
【００１６】[0016]
【発明の実施の形態】以下、図面により本発明の一実施
形態としての排土飛散防止型掘削式杭打機について説明
すると、図１はその側面図、図２はその筒状カバー上端
をスパイラル部材駆動機構に係止するためのフランジリ
ングの平面図、図３は図１のＡ部を拡大して示す側面
図、図４は図３のＢ−Ｂ矢視図である。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side view of an excavation-prevention type excavation type pile driving machine according to an embodiment of the present invention. FIG. FIG. 3 is a plan view of a flange ring for locking to a member driving mechanism, FIG. 3 is a side view showing an enlarged view of a portion A in FIG. 1, and FIG. 4 is a view taken in the direction of arrows BB in FIG.
【００１７】図１に示すように、本実施形態の杭打機１
も、その上部の旋回台２におけるブラケット３の先端部
に、リーダー４が下端部を水平横軸４ａで枢着されるよ
うにして立設され、同リーダー４の上端部から吊り下ろ
され同リーダー４に案内されて昇降しうる駆動機構（モ
ーター）５により、掘削用スパイラル部材６が回転可能
に垂下されている。As shown in FIG. 1, the pile driving machine 1 of the present embodiment
Also, a leader 4 is erected at the tip of the bracket 3 in the upper swivel 2 so that the lower end is pivotally attached to the horizontal axis 4a, and the leader 4 is suspended from the upper end of the leader 4 The excavation spiral member 6 is rotatably hung by a drive mechanism (motor) 5 which can be guided up and down by the guide mechanism 4.
【００１８】また、スパイラル部材６を内挿された鋼管
15を上部に有してリーダー４に案内されながら昇降しう
る排土ホッパ14が設けられ、同ホッパ14の下端開口部に
装着された円環状部材16は、スパイラル部材６を内挿さ
れて地中へ進入しうる鉄筋コンクリート製の円筒状杭部
材13の上端部に嵌合して、同杭部材13を拘束できるよう
になっている。A steel pipe having a spiral member 6 inserted therein
An unloading hopper 14 having an upper portion 15 and capable of ascending and descending while being guided by the leader 4 is provided. An annular member 16 attached to an opening at the lower end of the hopper 14 has a spiral member 6 inserted thereinto for grounding. The stake member 13 can be restrained by being fitted to the upper end of a cylindrical stake member 13 made of reinforced concrete that can enter the inside.
【００１９】本実施形態の杭打機では、特に排土ホッパ
14よりも上方でスパイラル部材６を覆う伸縮可能の蛇腹
構造をもった筒状カバー７の上縁が、駆動機構５のケー
シング下端に溶接されたフランジリング17にシャックル
で着脱可能に取り付けられている。In the pile driving machine of the present embodiment, in particular,
The upper edge of the cylindrical cover 7 having an extendable bellows structure that covers the spiral member 6 above the upper part 14 is detachably attached to a flange ring 17 welded to the lower end of the casing of the drive mechanism 5 with a shackle. .
【００２０】そして、筒状カバー７は、図３に示すよう
に鋼管15の上半部までを覆うように配設されて、同筒状
カバー７の下端部が、鋼管15の外周面から離隔した状態
で弾性部材（ゴムホース）18により排土ホッパ14の上面
のアイ部材19に係止され保持される。The tubular cover 7 is disposed so as to cover the upper half of the steel pipe 15 as shown in FIG. 3, and the lower end of the tubular cover 7 is separated from the outer peripheral surface of the steel pipe 15. In this state, the elastic member (rubber hose) 18 locks and holds the eye member 19 on the upper surface of the discharging hopper 14.
【００２１】また、鋼管15よりも上方でスパイラル部材
６から剥離し筒状カバー７内を落下する排土を受けられ
るように、鋼管15の下部外周に沿い、排土ホッパ14の上
面部分に落下排土貯溜スペース20が形成されて、その周
囲にフェンス21が起倒可能に設けられている。Further, along the outer periphery of the lower part of the steel pipe 15, it falls on the upper surface of the soil discharging hopper 14 so as to receive the soil discharged from the spiral member 6 above the steel pipe 15 and falling in the cylindrical cover 7. An earth removal storage space 20 is formed, and a fence 21 is provided so as to be able to be turned upside down.
【００２２】さらに、本実施形態では、筒状カバー７の
下端と排土ホッパ14の上面との隙間を取り囲むプラスチ
ックシートまたは薄鋼板としての囲壁22が、着脱可能に
設けられる。Further, in the present embodiment, an enclosing wall 22 as a plastic sheet or a thin steel plate surrounding the gap between the lower end of the cylindrical cover 7 and the upper surface of the earth discharging hopper 14 is detachably provided.
【００２３】なお、筒状カバー７が収縮して弾性部材18
が撓んだ際に同カバー７が着座できるように、図３，４
に示すごとく、鋼管15の外周から放射状に水平な受け棒
23が突設されている。The cylindrical cover 7 contracts and the elastic member 18
3 and 4 so that the cover 7 can be seated when the cover is bent.
As shown in the figure, a receiving rod that is radially horizontal from the outer circumference of the steel pipe 15
23 are protruding.
【００２４】蛇腹構造の筒状カバー７の振れ止め用とし
て、同カバー７の両側にそれぞれワイヤ９が上下方向へ
張設されており、同ワイヤ９の上端９ａはリーダー４の
頂部に着脱可能に係止されている。そして、ワイヤ９
は、フランジリング17のガイド孔17ａ（図２参照）を通
り、筒状カバー７の両側で上下方向に列設された多数の
有孔ガイド10を通って、排土ホッパ14の上面の滑車24,
25へ導かれるとともに、さらに旋回台２におけるブラケ
ット３上の滑車26およびリーダー起倒用ガントリー27上
の滑車28を経由して下方へ延在し、同ワイヤ９の下端に
は１０Ｋｇ程度のウェイト29が懸吊されるようになって
いる。Wires 9 are stretched in the vertical direction on both sides of the cover 7 in order to prevent the bellows-shaped cylindrical cover 7 from oscillating. The upper end 9a of the wire 9 is detachably attached to the top of the leader 4. Locked. And wire 9
Passes through a guide hole 17a (see FIG. 2) of the flange ring 17, passes through a number of perforated guides 10 arranged vertically on both sides of the cylindrical cover 7, and passes through a pulley 24 on the upper surface of the discharging hopper 14. ,
25, and further extends downward through a pulley 26 on the bracket 3 and a pulley 28 on the gantry 27 for raising and lowering the turntable 2, and a lower end of the wire 9 has a weight 29 of about 10 kg. Is to be suspended.
【００２５】なお、図１における符号30はリーダー起倒
用のガントリーワイヤを示し、符号31はリーダー起立保
持用のステイ、符号23は発電機を示している。Reference numeral 30 in FIG. 1 indicates a gantry wire for raising and lowering the leader, reference numeral 31 indicates a stay for holding the reader standing up, and reference numeral 23 indicates a generator.
【００２６】上述の構成により、本実施形態の場合も、
駆動機構５によりスパイラル部材６が回転作動して地中
を掘削しながら杭部材13の打込みが行なわれ、スパイラ
ル部材６の掘削した排土は排土ホッパ14に貯溜される。With the above configuration, also in the case of the present embodiment,
The driving of the spiral member 6 by the driving mechanism 5 causes the pile member 13 to be driven into the ground while excavating the ground, and the excavated earth removed by the spiral member 6 is stored in the earth discharging hopper 14.
【００２７】本実施形態では、特に、スパイラル部材６
の回動降下による掘削が行なわれてから、排土ホッパ14
上の鋼管15よりも上方へスパイラル部材６の掘削部分が
上昇した際に、同スパイラル部材６から剥離し落下する
排土は、筒状カバー７で覆われているため風による飛散
を防止される。In this embodiment, in particular, the spiral member 6
After the excavation has been performed by rotating the
When the excavated portion of the spiral member 6 rises above the upper steel pipe 15, the earth removal that separates and falls from the spiral member 6 is covered with the cylindrical cover 7, so that scattering by the wind is prevented. .
【００２８】このようにして、筒状カバー７内に沿い落
下した排土は、排土ホッパ14の上面部分で鋼管15の外周
に沿い配設された落下排土貯溜スペース20に適切に貯溜
されるようになる。In this manner, the soil discharged along the inside of the cylindrical cover 7 is appropriately stored in the dropped earth storage space 20 disposed along the outer periphery of the steel pipe 15 on the upper surface of the discharge hopper 14. Become so.
【００２９】そして、筒状カバー７は、鋼管15の上半部
までを覆っていて、同鋼管15の下半部では同筒状カバー
７の下端と排土ホッパ14の上面との間に隙間があいてい
るので、落下排土貯溜スペース20に貯溜された排土の取
り出し作業は容易に行なわれる。The tubular cover 7 covers up to the upper half of the steel pipe 15. In the lower half of the steel pipe 15, a gap is formed between the lower end of the tubular cover 7 and the upper surface of the discharge hopper 14. Therefore, the work of taking out the discharged soil stored in the drop discharged storage space 20 can be easily performed.
【００３０】また、筒状カバー７の下端と排土ホッパ14
の上面との隙間を取り囲む囲壁22が着脱可能に設けられ
ているので、この僅かな隙間からの強風による排土飛散
も的確に防止されるようになる。。The lower end of the cylindrical cover 7 and the discharging hopper 14
Since the surrounding wall 22 that surrounds the gap with the upper surface is detachably provided, it is possible to accurately prevent the scattered earth from being scattered by the strong wind from the slight gap. .
【００３１】さらに、本実施形態の排土飛散防止型掘削
式杭打機では、筒状カバー７が蛇腹構造を有して、同カ
バー７の振れ止め用ワイヤ９がリーダー４の頂部から同
カバー７の側面の有孔ガイド10を経由し排土ホッパ14上
面の滑車24, 25まで導かれた後、旋回台２におけるリー
ダー支持用ブラケット３上の滑車26まで降下してから、
リーダー起倒用ガントリー27における滑車28まで一旦上
昇し、ついで同滑車28から下降したワイヤ９の下端にウ
ェイト29が懸吊されているので、要所を回避した同ワイ
ヤ９の掛け回しによって杭打作業に支障をきすことがな
く、しかも蛇腹構造の筒状カバー７の伸縮の際の案内
が、ワイヤ９により適切に行なわれるようになる。Furthermore, in the excavation-prevention type excavation type pile driver according to the present embodiment, the tubular cover 7 has a bellows structure, and the anti-sway wire 9 of the cover 7 extends from the top of the leader 4 to the cover. After being guided to the pulleys 24 and 25 on the upper surface of the soil discharging hopper 14 via the perforated guide 10 on the side of 7, the descent to the pulley 26 on the leader support bracket 3 in the swivel 2
The weight 29 is suspended at the lower end of the wire 9 that has once risen to the pulley 28 in the gantry 27 for raising and lowering the leader, and the lower end of the wire 9 that has descended from the pulley 28. The work is not hindered, and the guide when the tubular cover 7 having the bellows structure expands and contracts can be appropriately performed by the wire 9.
【００３２】上述の実施形態の杭打機１では、順次地中
に挿入される杭部材13の相互間の溶接による結合のた
め、同杭打機１の旋回台２におけるリーダー支持用ブラ
ケット３の先端部には図示しない溶接機などが配置され
るが、ワイヤ９にテンションをかけるためのウェイト29
が、旋回台２におけるリーダー起倒用ガントリー27を利
用して懸吊されるので、上記溶接機などの配置の妨げに
ならなず、杭打機１の操縦の邪魔にならない利点もあ
る。In the pile driving machine 1 of the above-described embodiment, since the pile members 13 sequentially inserted into the ground are connected by welding, the leader supporting bracket 3 on the swivel 2 of the pile driving machine 1 is connected. A not-shown welding machine or the like is arranged at the distal end, but a weight 29 for applying tension to the wire 9 is used.
However, since the suspension is suspended by using the gantry 27 for raising and lowering the leader in the swivel base 2, there is an advantage that the arrangement of the welding machine and the like is not hindered and the operation of the pile driver 1 is not hindered.
【００３３】[0033]
【発明の効果】以上詳述したように、本発明の排土飛散
防止型掘削式杭打機によれば次のような効果が得られ
る。 (1) スパイラル部材の回動降下による掘削が行なわれて
から、排土ホッパ上の鋼管よりも上方へ上記スパイラル
部材の掘削部分が上昇した際に、同スパイラル部材から
剥離し落下する排土は、上記筒状カバーで覆われている
ため風による飛散を防止されるようになる。このように
して、上記筒状カバー内に沿い落下した排土は、上記排
土ホッパの上面部分で上記鋼管の外周に沿い配設された
落下排土貯溜スペースに適切に貯溜されるようになる。 (2) 上記筒状カバーは、上記鋼管の上半部までを覆って
いて、同鋼管の下半部では同筒状カバーの下端と排土ホ
ッパ上面との間に隙間があいているので、上記落下排土
貯溜スペースに貯溜された排土の取り出し作業は容易に
行なわれる。 (3) 上記筒状カバーの下端と上記排土ホッパの上面との
隙間を取り囲む囲壁が着脱可能に設けられていると、こ
の僅かな隙間からの強風による排土飛散も的確に防止さ
れるようになる。 (4) 上記筒状カバーが蛇腹構造を有して、同カバーの振
れ止め用ワイヤが上記リーダーの頂部から同カバー側面
の有孔ガイドを経由し排土ホッパ上面の滑車まで導かれ
た後、杭打機の旋回台におけるリーダー支持用ブラケッ
ト上の滑車まで降下してから、リーダー起倒用ガントリ
ーにおける滑車まで一旦上昇し、ついで同滑車から下降
した上記ワイヤの下端にウェイトが懸吊されていると、
同ワイヤの掛け回しによって杭打作業に支障をきすこと
がなく、しかも蛇腹構造の筒状カバーの伸縮の際の案内
が、上記ワイヤにより適切に行なわれるようになる。 (5) 本発明の排土飛散防止型掘削式杭打機では、順次地
中に挿入される杭部材の相互間の溶接による結合のた
め、同杭打機の旋回台におけるリーダー支持用ブラケッ
トの先端部には溶接機などが配置されるが、上記ワイヤ
にテンションをかけるためのウェイトが、上記旋回台に
おけるリーダー起倒用ガントリーを利用して懸吊される
ので、上記溶接機などの配置の妨げにならなず、杭打機
の操縦の邪魔にならない利点もある。As described above in detail, the following effects can be obtained by the excavation-prevention type excavation type pile driver according to the present invention. (1) After the excavation is performed by rotating and lowering the spiral member, when the excavated portion of the spiral member rises above the steel pipe on the discharge hopper, the excavated soil that separates and falls from the spiral member is Since it is covered with the cylindrical cover, scattering by wind is prevented. In this way, the soil discharged along the inside of the cylindrical cover is appropriately stored in the dropped soil storage space disposed along the outer periphery of the steel pipe at the upper surface of the soil discharging hopper. . (2) Since the tubular cover covers the upper half of the steel pipe, and in the lower half of the steel pipe, there is a gap between the lower end of the tubular cover and the upper surface of the discharging hopper, The work of taking out the discharged soil stored in the above-mentioned fall discharged soil storage space is easily performed. (3) When the surrounding wall surrounding the gap between the lower end of the cylindrical cover and the upper surface of the earth discharging hopper is detachably provided, the earth is scattered by the strong wind from the slight gap. become. (4) The tubular cover has a bellows structure, and after the wire for steadying the cover is guided from the top of the leader to the pulley on the top surface of the soil discharging hopper through the perforated guide on the side of the cover, After descending to the pulley on the leader support bracket on the swivel of the pile driver, it once rises to the pulley in the leader raising and lowering gantry, and then the weight is suspended at the lower end of the wire that descended from the pulley. When,
The hooping of the wire does not hinder the pile driving operation, and the above-mentioned wire appropriately guides the expansion and contraction of the bellows-shaped tubular cover. (5) In the excavation-prevention-type excavation-type pile driver according to the present invention, since the pile members to be sequentially inserted into the ground are welded to each other, the leader support bracket on the swivel of the pile driver is used. A welding machine or the like is arranged at the distal end, but a weight for applying tension to the wire is suspended using a gantry for raising and lowering the leader in the swivel table. It also has the advantage that it does not hinder the operation of the pile driver.
【図１】本発明の一実施形態としての排土飛散防止型掘
削式杭打機を示す側面図である。FIG. 1 is a side view showing an excavation-prevention type excavation type pile driver as one embodiment of the present invention.
【図２】図１の杭打機における筒状カバー上端係止用の
フランジリングを示す平面図である。FIG. 2 is a plan view showing a flange ring for locking an upper end of a cylindrical cover in the pile driver of FIG. 1;
【図３】図１のＡ部を拡大して示す側面図である。FIG. 3 is an enlarged side view showing a portion A in FIG. 1;
【図４】図３のＢ−Ｂ矢視図である。FIG. 4 is a view taken in the direction of arrows BB in FIG. 3;
【図５】従来の杭打機の一例を示す側面図である。FIG. 5 is a side view showing an example of a conventional pile driver.
【図６】従来の杭打機の他の例を示す側面図である。FIG. 6 is a side view showing another example of the conventional pile driver.
１ 走行式杭打機 ２ 旋回台 ３ リーダー支持用ブラケット ４ リーダー ４ａ 水平横軸 ５ 駆動機構（モーター） ６ スパイラル部材（アースドリル） ７ 筒状カバー ９ 振れ止め用ワイヤ ９ａ ワイヤ上端 10 有孔ガイド 13 杭部材 14 排土ホッパ 15 鋼管 16 円環状部材 17 フランジリング 17ａ ガイド孔 18 弾性部材（ゴムホース） 19 アイ部材 20 落下排土貯溜スペース 21 フェンス 22 囲壁 23 受け棒 24〜26 滑車 27 ガントリー 28 滑車 29 ウェイト 30 ガントリーワイヤ 31 ステイ 32 発電機 DESCRIPTION OF SYMBOLS 1 Traveling pile driver 2 Swivel base 3 Leader support bracket 4 Leader 4a Horizontal horizontal axis 5 Drive mechanism (motor) 6 Spiral member (earth drill) 7 Cylindrical cover 9 Steady-stop wire 9a Wire upper end 10 Perforated guide 13 Pile member 14 Discharge hopper 15 Steel pipe 16 Annular member 17 Flange ring 17a Guide hole 18 Elastic member (rubber hose) 19 Eye member 20 Falling discharge storage space 21 Fence 22 Enclosure wall 23 Receiving rod 24 to 26 Pulley 27 Gantry 28 Pulley 29 Weight 30 Gantry Wire 31 Stay 32 Generator
Claims (3)
先端部に立設されたリーダーと、同リーダーの頂部から
吊り下ろされ同リーダーに案内されて昇降しうる駆動機
構と、同駆動機構の鉛直回転軸に連結されて回転可能に
垂下された掘削用スパイラル部材と、同スパイラル部材
を内挿された鋼管を上部に有して上記リーダーに案内さ
れながら昇降しうる排土ホッパと、上記スパイラル部材
を内挿されて地中へ進入しうる円筒状杭部材の上端部を
拘束すべく上記排土ホッパの下端開口部に装着された円
環状部材とをそなえ、上記排土ホッパよりも上方で上記
スパイラル部材を覆う伸縮可能の筒状カバーが、上記駆
動機構のケーシング下端から垂下され上記鋼管の上半部
までを覆うように配設されて、同筒状カバーの下端部が
上記鋼管の外周面から離隔した状態に保持されるととも
に、上記鋼管よりも上方で上記スパイラル部材から剥離
し上記筒状カバー内を落下する排土を受けるべく、上記
鋼管の下部外周に沿い、上記排土ホッパの上面部分に落
下排土貯溜スペースが形成されていることを特徴とす
る、排土飛散防止型掘削式杭打機。1. A leader erected at the tip of a bracket on a swivel table above a pile driver, a drive mechanism suspended from the top of the leader and guided up and down by the leader, and a vertical mechanism of the drive mechanism A drilling spiral member rotatably suspended by being connected to a rotating shaft, a steel pipe having the spiral member inserted therein, and a soil discharging hopper which can be raised and lowered while being guided by the leader, and the spiral member And an annular member attached to the lower end opening of the discharging hopper to restrain the upper end of the cylindrical pile member which can be inserted into the ground by being inserted therein. An expandable and contractible cylindrical cover that covers the spiral member is disposed so as to hang down from a lower end of the casing of the drive mechanism and cover an upper half of the steel pipe, and a lower end of the cylindrical cover has an outer peripheral surface of the steel pipe. Or Along the lower periphery of the steel pipe, the upper surface of the dumping hopper is held along the outer circumference of the lower part of the steel pipe so as to receive the earth discharging separated from the spiral member above the steel pipe and falling in the cylindrical cover while being kept apart from the steel pipe. An excavation-prevention-type excavation-type pile driver, characterized in that a fall-excavation storage space is formed in a part thereof.
の上面との隙間を取り囲む囲壁が着脱可能に設けられた
ことを特徴とする、請求項１に記載の排土飛散防止型掘
削式杭打機。2. An excavation prevention type excavation type according to claim 1, wherein a surrounding wall surrounding a gap between a lower end of said cylindrical cover and an upper surface of said excavation hopper is provided detachably. Pile driver.
バーの両側面において上下方向に列設された多数の有孔
ガイドに挿通される振れ止め用ワイヤが設けられ、同ワ
イヤが、上記リーダーの頂部から上記多数の有孔ガイド
を経由して上記排土ホッパ上面の滑車へ導かれるととも
に、さらに同ワイヤが上記旋回台におけるリーダー支持
用ブラケット上の滑車と、上記旋回台上のリーダー起倒
用ガントリーにおける滑車とを経由して下方へ延在し、
同ワイヤ下端にウェイトが懸吊されたことを特徴とす
る、請求項１または２に記載の排土飛散防止型掘削式杭
打機。3. The above-mentioned tubular cover has a bellows structure, and is provided with anti-sway wires that are inserted through a number of perforated guides vertically arranged on both side surfaces of the cover. The top of the leader is guided to the pulley on the upper surface of the discharging hopper through the plurality of perforated guides, and the wire is further connected to a pulley on a bracket for supporting the leader in the swivel base and a leader on the swivel base. Extending downward through the pulleys in the lifting gantry,
The excavation prevention type excavation type pile driver according to claim 1 or 2, wherein a weight is suspended at a lower end of the wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9240358A JP2985068B2 (en) | 1997-08-21 | 1997-08-21 | Excavation prevention type excavation type pile driver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9240358A JP2985068B2 (en) | 1997-08-21 | 1997-08-21 | Excavation prevention type excavation type pile driver |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH1161813A JPH1161813A (en) | 1999-03-05 |
| JP2985068B2 true JP2985068B2 (en) | 1999-11-29 |
Family
ID=17058310
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9240358A Expired - Fee Related JP2985068B2 (en) | 1997-08-21 | 1997-08-21 | Excavation prevention type excavation type pile driver |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2985068B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10335366B4 (en) | 2003-08-01 | 2005-06-16 | Bauer Spezialtiefbau Gmbh | Method and device for producing a stabilizing column in the soil |
| JP4553629B2 (en) * | 2004-05-12 | 2010-09-29 | 株式会社横山基礎工事 | Drilling soil scattering prevention device |
| JP5187580B2 (en) * | 2008-12-26 | 2013-04-24 | 丸紅建材リース株式会社 | Excavator mud scattering prevention device |
-
1997
- 1997-08-21 JP JP9240358A patent/JP2985068B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH1161813A (en) | 1999-03-05 |
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