JP2553987B2 - Deep foundation foundation excavation construction method - Google Patents

Deep foundation foundation excavation construction method

Info

Publication number
JP2553987B2
JP2553987B2 JP4142243A JP14224392A JP2553987B2 JP 2553987 B2 JP2553987 B2 JP 2553987B2 JP 4142243 A JP4142243 A JP 4142243A JP 14224392 A JP14224392 A JP 14224392A JP 2553987 B2 JP2553987 B2 JP 2553987B2
Authority
JP
Japan
Prior art keywords
foundation
excavation
work
deep foundation
deep
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
Application number
JP4142243A
Other languages
Japanese (ja)
Other versions
JPH05311980A (en
Inventor
栄 中井
雅孝 魚住
達男 伊藤
豊 三浦
峻史 浜田
正広 野中
光広 三小田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsui Construction Co Ltd
Mitsui Miike Engineering Corp
Original Assignee
Mitsui Construction Co Ltd
Mitsui Miike Engineering Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsui Construction Co Ltd, Mitsui Miike Engineering Corp filed Critical Mitsui Construction Co Ltd
Priority to JP4142243A priority Critical patent/JP2553987B2/en
Publication of JPH05311980A publication Critical patent/JPH05311980A/en
Application granted granted Critical
Publication of JP2553987B2 publication Critical patent/JP2553987B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は山岳地帯などで高速道路
橋用支柱などを構築する際に、その深礎基礎用竪穴を効
率よく施工する深礎基礎掘削施工方法に係り、特に複数
の竪穴を同時に掘削、完成させることができる深礎基礎
掘削施工方法に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a deep foundation foundation excavation construction method for efficiently constructing a deep foundation foundation vertical hole when constructing a highway bridge support pole in a mountainous area or the like, and particularly to a plurality of vertical holes. The present invention relates to a deep foundation foundation excavation construction method that enables simultaneous excavation and completion.

【0002】[0002]

【従来の技術】従来、深礎基礎用竪穴の掘削施工は人力
施工による工法として開発されてきたが、穴内でのブレ
ーカーの騒音や採掘土砂の排出などの人力作業による場
合が多く苦渋作業であり、穴深部の作業では落下、墜落
事故が多く、危険を伴う作業のため労働力の確保が困難
である。また、深礎基礎用竪穴の掘削施工は事故発生率
が高いため施工機械の開発が望まれている。そこで、人
力施工の代替として一般施工用の建設機械の流用などが
考えられており、さらに一般掘削機械を小型化した専用
機の開発も試みられつつある。
2. Description of the Related Art Conventionally, excavation work for pits for deep foundations has been developed as a construction method by human labor, but it is often a laborious work due to human labor such as breaker noise in the hole and discharge of mined earth and sand. However, it is difficult to secure a labor force because there are many accidents of falling and crashing when working in deep holes, which is dangerous work. Moreover, since the accident rate is high in the excavation work of the deep foundation foundation pit, the development of a construction machine is desired. Therefore, as an alternative to human-powered construction, the use of construction machines for general construction is being considered, and the development of a dedicated machine with a smaller general-purpose excavator is also being attempted.

【0003】そして、この種の基礎掘削法として特公昭
59−45071号公報に開示された平地に施工された
基礎上に門型クレーンを据え付け、この門型クレーン内
において掘削機を組み立て、門型クレーンに対してガイ
ドパイプで支持させた状態で掘削機を下降させ乍ら土砂
を掘削し、掘削が進むにつれて掘削機の周囲に掘削孔内
面に接するように設けたスキンプレートの上端にライナ
ープレートを継ぎ足し、所定径で、かつ所定深さの掘削
孔形成後、前記掘削機を引き上げることを特徴とする鉄
塔等の基礎掘削法が公知である。
As a basic excavation method of this kind, a gate type crane is installed on a foundation constructed on a flat surface disclosed in Japanese Patent Publication No. 59-45071, and an excavator is assembled in the gate type crane to construct a gate type. With the guide pipe supported on the crane, lower the excavator to excavate the earth and sand, and as the excavation progresses, install a liner plate on the upper end of the skin plate that is in contact with the inner surface of the excavation hole. A basic excavation method for a steel tower or the like is known in which the excavator is pulled up after being replenished to form an excavation hole having a predetermined diameter and a predetermined depth.

【0004】この基礎掘削法は、平地に施工された基礎
上に門型クレーンを据え付け、この門型クレーン内にお
いて掘削機を組み立て、この掘削機を門型クレーンに対
してガイドパイプで支持させた状態で掘削機を下降させ
乍ら土砂を掘削し、掘削が進むにつれて掘削機の周囲に
掘削孔内面に接するように設けたスキンプレートの上端
にライナープレートを継ぎ足し、所定径で、かつ所定深
さの掘削孔形成後、前記掘削機を引き上げる方法である
から、上記の基礎掘削法によれば掘削機の下降を前記ガ
イドパイプを以って確実に行なえ、しかも、掘削孔内面
の崩壊は前記スキンプレート及びライナープレートによ
って確実に防止でき、掘削作業を能率良く容易に行なう
ことができるというものである。
In this basic excavation method, a portal crane is installed on a foundation constructed on a flat ground, an excavator is assembled in the portal crane, and the excavator is supported by a guide pipe with respect to the portal crane. The excavator is lowered in this state to excavate the earth and sand, and as the excavation progresses, a liner plate is added to the upper end of the skin plate provided around the excavator so as to contact the inner surface of the excavation hole. The method of pulling up the excavator after the formation of the excavation hole is as follows. Therefore, according to the basic excavation method described above, the excavator can be surely lowered using the guide pipe, and the collapse of the inner surface of the excavation hole is caused by the skin. The plate and the liner plate can surely prevent the excavation work, and the excavation work can be performed efficiently and easily.

【0005】[0005]

【発明が解決しようとする課題】しかしながら、深礎基
礎は一般に直径が2m〜5mと小さく、深さは最大30
mという特殊条件の竪穴であるために、一般の建設機械
の改造、転用では能率的な掘削施工は困難である。その
上、一般の建設機械を小型化しただけでは掘削能力が不
足であり、作業効率等に問題がある。さらに、深礎基礎
は土質的に軟弱な土砂から硬岩まで広範囲にわたるの
で、単一の機械では各土質を掘削することは不可能に近
く作業効率に問題がある。
However, the deep foundation is generally as small as 2 m to 5 m in diameter, and the maximum depth is 30 m.
Since the pit has a special condition of m, it is difficult to efficiently perform excavation work by remodeling or converting a general construction machine. Moreover, excavation capacity is insufficient even if the general construction machine is downsized, and there is a problem in work efficiency. In addition, since deep foundations cover a wide range from soil soft soil to hard rock, it is almost impossible to excavate each soil with a single machine, and there is a problem in working efficiency.

【0006】また、上記特公昭59−45071号公報
に開示された鉄塔等の基礎掘削法では掘削孔の壁面が崩
れるのを防止するためにライナープレート22を掘削孔
26の内部で人間が組み立てていき、竪穴状掘削孔26
の掘削作業が完了すると、ガイドパイプ19、ガイドパ
イプ固定装置20、ガイドパイプ上下装置21、掘削掻
き寄せバケット12、ブレーカ18、ドリフタ23等を
掘削孔26内に人間が入り分解してから引き上げる方法
であるから、これらの掘削孔内での作業は落下、墜落事
故が多く、危険を伴う作業となる重大な欠点がある。
In the method of excavating a steel tower or the like disclosed in Japanese Patent Publication No. 59-45071, a liner plate 22 is assembled by a human in the borehole 26 in order to prevent the wall surface of the borehole from collapsing. Iki, pit-shaped excavation hole 26
When the excavation work is completed, the guide pipe 19, the guide pipe fixing device 20, the guide pipe lifting / lowering device 21, the excavation scraping bucket 12, the breaker 18, the drifter 23, etc. are put into the excavation hole 26, disassembled, and then lifted up. Therefore, the work in these boreholes has a serious drawback that the work is dangerous, with many accidents such as falling and falling.

【0007】本発明は上記事情に鑑みてなされたもので
あり、地上において自在に走行可能な自走フレーム上に
吊フレームが装備された深礎基礎施工機を利用して深礎
基礎用竪穴内での掘削作業が安全に行なえ、しかも複数
の深礎基礎用竪穴で行なう掘削作業を効率よく、かつ同
時に完成できる深礎基礎掘削施工方法を提供することを
目的としている。
The present invention has been made in view of the above circumstances, and utilizes a deep foundation foundation construction machine in which a suspension frame is mounted on a self-propelled frame that can freely travel on the ground, and is used in a deep hole for a deep foundation foundation. It is an object of the present invention to provide a deep foundation foundation excavation construction method that enables safe excavation work in the ground, and can efficiently complete the excavation work performed by a plurality of deep foundation foundation vertical holes at the same time.

【0008】[0008]

【課題を解決するための手段】本発明は上記の目的を達
成するために、地上において自在に走行可能な自走フレ
ーム上に吊フレームが装備された深礎基礎施工機を利用
して行なう深礎基礎掘削施工法において、前記深礎基礎
施工機の自走フレーム上に配置されたウインチによって
該自走フレームの中央附近から排土作業が完了した竪穴
内に複合施工装置を吊り下げた後、該複合施工装置に装
備した掘削機を利用して該竪穴掘削面の凸部の当り取り
を行ない、次いで該複合施工装置に装備した壁面支保装
置を利用して掘削壁面の支保作業を行ない、また該複合
施工装置に装備した削岩機を選択して発破孔等の削孔を
行なうことを特徴とした深礎基礎掘削施工法であり、特
にクラムシェル等により排土作業を複数の深礎基礎用竪
穴で交互に行なっている掘削作業において、1つの竪穴
で排土作業を行ない、他の竪穴では該深礎基礎施工機を
利用して掘削作業を同時に行ない、さらにこれらの作業
を交互に同時並行して行なうことを特徴としており、ま
た1台のクラムシェル等による排土作業と、2台以上の
深礎基礎施工機を利用した掘削作業を同時に行ない、次
いでこれらの作業を順次入れ替わって同時並行して行な
うことを特徴としている。
In order to achieve the above-mentioned object, the present invention provides a deep foundation construction machine equipped with a hanging frame on a self-propelled frame which can freely travel on the ground. In the foundation foundation excavation construction method, after suspending the composite construction device in the vertical hole where the earth removal work has been completed from the vicinity of the center of the self-propelled frame by the winch arranged on the self-propelled frame of the deep foundation foundation construction machine, Using the excavator equipped in the composite construction device, the convex portion of the vertical hole excavation surface is hit, and then the wall support device equipped in the composite construction device is used to support the excavated wall surface. It is a deep foundation foundation excavation construction method characterized by selecting a rock drilling machine equipped in the combined construction equipment to perform drilling such as blasting holes, and especially for excavation work of a plurality of deep foundation foundations by clam shell etc. Alternate in vertical holes In the excavation work that is carried out, the earth removal work is performed in one vertical hole, the excavation work is simultaneously performed in the other vertical hole using the deep foundation foundation construction machine, and these operations are alternately performed in parallel. In addition, the feature is that soil removal work by one clam shell etc. and excavation work using two or more deep foundation construction machines are performed at the same time, and then these works are sequentially replaced and performed in parallel. I am trying.

【0009】また、地表面が段違いになっている地形に
複数個の深礎基礎用竪穴を施工する際、クラムシェル等
により排土作業を行なっている該深礎基礎用竪穴の掘削
口面間に上下の落差がある場合における掘削作業おい
て、該下地表面の掘削口の上に分割ブロック式架台を設
け、該架台の上面が前記上地表面の高さと同一となるよ
うに設置し、深礎基礎施工機が上下地表面にある掘削口
を順次移動して掘削作業を施工し、他方の竪穴ではクラ
ムシェル等により排土作業を同時並行して行なうことを
特徴としている。
Further, when a plurality of deep foundation foundation vertical holes are constructed on a terrain where the ground surface is uneven, excavation work is performed by a clam shell or the like between the excavation surface of the deep foundation basic vertical holes. In the case of excavation work when there is a vertical drop in the ground, a divided block type pedestal is provided above the excavation opening on the ground surface, and the top surface of the pedestal is installed at the same height as the above ground surface. The foundation foundation construction machine moves the excavation holes on the surface of the upper foundation one by one to carry out excavation work, and at the other vertical hole, the soil removal work is carried out in parallel by a clam shell or the like.

【0010】[0010]

【作用】次に、本発明に係る深礎基礎掘削施工法の作用
について説明すると、先ず地上において自在に走行可能
な自走フレーム上に吊フレームが装備された深礎基礎施
工機を高速道路橋用支柱などを構築するための目的の深
礎基礎掘削穴付近に移送し、その深礎基礎用竪穴の内の
クラムシェル等による排土作業が終了するのをまって、
上記自走フレーム上に配置されたウインチによって自走
フレームの中央附近から排土作業が完了した竪穴内に複
合施工装置を吊りフレームからワイヤによって吊り下
げ、その複合施工装置に装備した掘削機で竪穴掘削面の
凸部の当り取りを行ない、次いで上記複合施工装置に装
備した壁面支保装置を利用して掘削面の支保作業を行な
う。さらに深礎基礎掘削竪穴内で発破孔等の削孔を行な
う必要があるときは複合施工装置に装備した削岩機を利
用して発破孔等の削孔を行なう。このようにして深礎基
礎用竪穴内での竪穴掘削面の凸部の当り取り作業、掘削
面の支保作業、そして発破孔等の削孔作業などの全作業
を安全に行なうことができる。
Next, the operation of the deep foundation foundation excavation construction method according to the present invention will be described. First, a deep foundation foundation construction machine equipped with a suspension frame on a self-propelled frame that can freely travel on the ground is installed on a highway bridge. It is transferred to the vicinity of the deep foundation foundation excavation hole for the purpose of constructing support pillars, and wait for the earth removal work by the clam shell etc. in the deep foundation foundation vertical hole to finish,
The composite construction equipment is hung by the wire from the suspension frame in the vertical hole where the earth removal work is completed from the vicinity of the center of the self-propelled frame by the winch arranged on the above-mentioned self-propelled frame, and the vertical hole is excavated by the excavator equipped in the composite construction equipment. The convex portion of the excavation surface is hit, and then the excavation surface is supported by using the wall support device equipped in the above composite construction device. Furthermore, when it is necessary to drill holes such as blast holes in the deep foundation excavation pit, the rock drilling machine equipped with the combined construction equipment is used to drill holes such as blast holes. In this way, all the work such as the work of hitting the convex portion of the pit excavation surface, the support work of the excavation surface, and the drilling work such as the blast hole can be safely performed in the deep foundation foundation pit.

【0011】また、クラムシェル等により排土作業を複
数の深礎基礎用竪穴で交互に行なう掘削作業の場合に
は、1つの竪穴では排土作業を行ない、他の竪穴では深
礎基礎施工機を利用して掘削作業を同時に行ない、さら
にこれらの作業を交互に同時並行して行なって複数の深
礎基礎用竪穴を同時に完成できる。この際クラムシェル
による排土作業はクラムシェル本体は移動せずにブーム
の旋回によって対応できる。またクラムシェル等により
排土作業を3つ以上の深礎基礎用竪穴で行なう掘削作業
の場合には、1台のクラムシェル等による排土作業と、
2台以上の深礎基礎施工機を利用した掘削作業を同時に
行ない、次いでこれらの作業を順次入れ替わり同時並行
して行なうため、クラムシェルの排土作業時間と深礎基
礎施工機による作業時間との差、すなわち約1:3の作
業時間の差を利用して、排土作業と深礎基礎用竪穴の掘
削作業とを同時並行に行なって、複数の深礎基礎用竪穴
を同時に完成できる。
In the case of excavation work in which a plurality of deep foundation foundation pits are alternately used for soil removal work by a clam shell or the like, one pit is used for earth removal work and the other pits are used for deep foundation work machines. It is possible to carry out excavation work at the same time by using, and to carry out these works alternately and in parallel to complete a plurality of deep foundation pits at the same time. At this time, the earth removal work by the clamshell can be handled by turning the boom without moving the clamshell body. In addition, in the case of excavation work that uses a clam shell or the like to perform earth excavation work in three or more deep foundation foundation vertical holes,
Since excavation work using two or more deep foundation work machines is performed at the same time, and then these operations are sequentially switched and performed in parallel, the clamshell earth removal work time and the work time by the deep foundation work machine are By utilizing the difference, that is, the difference in working time of about 1: 3, the earth discharging work and the excavation work of the deep foundation foundation pit can be simultaneously performed in parallel to complete a plurality of deep foundation foundation pits at the same time.

【0012】また、竪穴の掘削口地表面が段違いになっ
ている地形に複数個の深礎基礎用竪穴を施工する場合に
は、下地表面の掘削口の上に分割ブロック式架台を設
け、該架台の上面が上地表面の高さと同一となるように
設置し、深礎基礎施工機が上、下地表面にある掘削口を
順次移動して掘削作業を行ない、他方の竪穴では上地表
面に設置したクラムシェル等により排土作業を同時並行
して行なって段違いになっている複数個の竪穴を同時に
完成できる。
Further, when a plurality of deep foundation foundation pits are to be constructed on the terrain where the ground surface of the pit is uneven, a divided block type mount is provided on the ground surface of the pit, Installed so that the top surface of the gantry is at the same height as the surface of the upper ground, the deep foundation foundation construction machine is on top, and the excavation holes on the ground surface are sequentially moved to perform the excavation work. With the installed clam shells, etc., the earth removal work can be performed in parallel at the same time, and multiple vertical holes with different levels can be completed at the same time.

【0013】[0013]

【実施例】次に、本発明に係る深礎基礎掘削施工法を実
施するための実施例について図面を参照して説明する。
図1は本実施例の縦断面説明図であり、図2および図3
はそれぞれ本実施例の平面図であり、また図4は竪穴の
掘削口地表面が段違いになっている地形に複数個の深礎
基礎用竪穴を施工する実施例を示している。
EXAMPLES Next, examples for carrying out the deep foundation foundation excavation construction method according to the present invention will be described with reference to the drawings.
FIG. 1 is a vertical cross-sectional explanatory view of this embodiment, and FIGS.
4A and 4B are plan views of the present embodiment, respectively, and FIG. 4 shows an embodiment in which a plurality of deep foundation foundation vertical holes are constructed on a terrain in which the excavation mouth surface of the vertical holes is uneven.

【0014】図1に示すように本実施例は、山岳地帯な
どで高速道路橋用支柱などを構築する際に、その深礎基
礎用竪穴の予定地に複数の穴口をショベルまたはバック
ホーなどで掘削し、セグメント1を設置し、その周囲を
コンクリートによって固定する。このようにして形成し
た深礎基礎用竪穴Pに、地上においてクローラなどによ
って走行可能な自走フレーム2上に吊フレーム3を装備
した深礎基礎施工機4を移送する。そして上記自走フレ
ーム2上に配置されたウインチ5によって自走フレーム
2の中央附近から排土作業が完了した穴口のセグメント
1内に吊りフレーム3からワイヤ6によって複合施工装
置7を吊り下げる。
As shown in FIG. 1, in the present embodiment, when constructing a prop for a highway bridge in a mountainous area or the like, a plurality of holes are excavated by a shovel or a backhoe at a planned site of a deep foundation foundation pit. Then, the segment 1 is installed, and its periphery is fixed with concrete. The deep foundation foundation construction machine 4 equipped with the suspension frame 3 on the self-propelled frame 2 capable of traveling on the ground by a crawler or the like is transferred to the deep foundation foundation vertical hole P thus formed. Then, the winch 5 arranged on the self-propelled frame 2 suspends the combined construction device 7 by the wire 6 from the suspension frame 3 in the segment 1 of the hole mouth where the earth removing work is completed from the vicinity of the center of the self-propelled frame 2.

【0015】この複合施工装置7は上記ワイヤ6によっ
て吊り下げられた吊り架台8の下に回転可能な旋回フレ
ーム9を装着し、この旋回フレーム9の下部には、図示
しない掘削機をそのカッター部が穴径方向及び鉛直方向
に移動可能に装着し、またその掘削機の側方空間部には
図示しない削岩機をその穿孔方向が変更可能に装着し、
さらにその側部空間に操作室10を装着し、その操作室
10の底部に壁面支保装置11を上下揺動可能に、かつ
回転可能に配設してある。したがってこの複合施工装置
7のグリッパ12によって掘削壁に複合施工装置7を固
定した後、その複合施工装置7に装備した掘削機を利用
して操作室10内で操作して竪穴掘削壁面の凸部の当り
取りを行ったり、上記壁面支保装置11を利用して掘削
面の支保作業を行なったり、また発破孔等の削孔を行な
う必要があるときは前記削岩機を選択して発破孔等の削
孔を行なって、連続的に深礎基礎用竪穴Pを掘削する。
このようにして、一定の掘削が終了したら施工機4を移
動させた後に、深礎基礎用竪穴Pには地上においてクロ
ーラなどによって走行可能な自走クラムシェル13を移
動させ、そのクラムシェル13によって掘削穴内の排土
作業を行なう。
In this combined construction device 7, a rotatable swivel frame 9 is mounted under a suspension frame 8 suspended by the wire 6, and an excavator (not shown) has a cutter part at the lower part of the swivel frame 9. Is movably mounted in the hole radial direction and the vertical direction, and a rock drill not shown is mounted in the lateral space of the excavator so that the drilling direction can be changed.
Further, the operation chamber 10 is mounted in the side space thereof, and the wall support device 11 is arranged at the bottom of the operation chamber 10 so as to be vertically swingable and rotatable. Therefore, after fixing the composite construction device 7 to the excavation wall by the gripper 12 of the composite construction device 7, the excavator equipped in the composite construction device 7 is used to operate in the operation room 10 to project the convex portion of the vertical excavation wall surface. When it is necessary to hit the ground, support the excavation surface by using the wall support device 11, or perform drilling such as blast hole, select the rock drill and select the blast hole. Then, the deep foundation foundation vertical hole P is continuously drilled.
In this way, after a certain amount of excavation is completed, the construction machine 4 is moved, and then the self-propelled clamshell 13 which can be moved by a crawler or the like on the ground is moved to the deep foundation foundation vertical hole P, and by the clamshell 13. Perform earth removal work in the excavation hole.

【0016】次に、図2および図3に示すように、2つ
または3つの深礎基礎用竪穴Pを同時に掘削する場合に
は、走行可能な自走クラムシェル13をそれら複数の深
礎基礎用竪穴Pにブーム15の旋回によって対応できる
位置に配置し、クラムシェル13による排土作業と、深
礎基礎施工機4に吊り下げられた複合施工装置7による
掘削作業、コンクリート吹付などの掘削面の支保作業を
同時に並行して行なうことができる。また、これらの作
業を順次入れ替わり同時並行して行なうため、クラムシ
ェルの排土作業時間と、深礎基礎施工機による掘削、コ
ンクリート吹き付けなどの支保作業時間とを比較すると
約1:3であるから、それらの作業時間の差を利用し
て、1つの排土作業と3つの深礎基礎等竪穴の掘削作業
とを同時並行に行なって、多数の深礎基礎用竪穴を同時
に完成できる。
Next, as shown in FIGS. 2 and 3, when two or three deep foundation foundation vertical holes P are to be simultaneously drilled, a self-propelled clamshell 13 capable of traveling is provided on the plurality of deep foundation foundations. It is arranged at a position corresponding to the vertical shaft P by the turning of the boom 15, and the earth removal work by the clam shell 13, the excavation work by the composite construction device 7 suspended from the deep foundation foundation construction machine 4, the excavation surface such as concrete spraying, etc. The support work of can be done in parallel at the same time. Also, since these operations are sequentially replaced and performed in parallel, comparing the clamshell earth removal work time with the support work time such as excavation by the deep foundation foundation construction machine and concrete spraying is about 1: 3. By utilizing the difference in the working time, one earth unloading operation and three deep foundation foundation pit excavation operations can be performed in parallel at the same time, and a large number of deep foundation foundation pits can be completed at the same time.

【0017】また、図4に示すように竪穴の掘削口地表
面が段違いになっている地形に複数個の深礎基礎用竪穴
Pを施工する場合には、下地表面Bの掘削口の上に分割
ブロック式架台14を設け、この架台14の上面が上地
表面Aの高さと同一となるように設置する。このように
して深礎基礎施工機4を上地表面Aと、下地表面Bにあ
る掘削口を順次移動して掘削作業を行なう。この掘削作
業を行なっている間に、他方の竪穴Pでは上地表面Aに
設置したクラムシェル等により排土作業を同時並行して
行なって段違いになっている複数個の竪穴でも同時に完
成する。
Further, as shown in FIG. 4, when a plurality of deep foundation foundation pits P are to be constructed on a terrain in which the ground surface of the pit has a stepped surface, the ground surface B is placed above the pit. The divided block type pedestal 14 is provided, and the pedestal 14 is installed so that the upper surface thereof is the same as the height of the upper ground surface A. In this manner, the excavation work is performed by sequentially moving the excavation holes on the upper ground surface A and the ground surface B of the deep foundation foundation construction machine 4. While performing this excavation work, in the other pit P, a clam shell or the like installed on the surface A of the upper ground simultaneously performs the earth unloading work to simultaneously complete a plurality of pits having different steps.

【0018】[0018]

【発明の効果】以上説明したように本発明に係る深礎基
礎掘削施工法によれば、深礎基礎施工機の自走フレーム
上に配置されたウインチによって該自走フレームの中央
附近から排土作業が完了した竪穴に複合施工装置を吊り
下げた後、その吊り下げられた複合施工装置に装備した
掘削機を利用して竪穴掘削壁面の凸部の当り取りを行な
い、次いでこの複合施工装置に装備した壁面支保装置を
利用して掘削面の支保作業を行ない、また発破孔等の削
孔を行なう必要があるときは前記複合施工装置に装備し
た削岩機を選択して発破孔等の削孔を行なうから、排土
後の竪穴掘削面の凸部の当り取り作業、竪穴掘削面の支
保作業を連続して行なうことができ、また発破孔等の削
孔を行なう必要がある時にも連続した削孔作業も可能と
なるから、山岳地帯などの高速道路橋用深礎基礎孔を効
率よく、かつ作業の安全性が確保でき、しかも深礎基礎
孔内での苦渋作業からの開放と作業環境の改善がなされ
る。
As described above, according to the deep foundation foundation excavation construction method according to the present invention, the winch arranged on the self-propelled frame of the deep foundation foundation construction machine removes soil from the vicinity of the center of the self-propelled frame. After suspending the composite construction equipment in the completed vertical hole, use the excavator equipped in the suspended composite construction equipment to strike the convex part of the vertical excavation wall surface, and then to this composite construction equipment. When it is necessary to support the excavated surface using the wall support device equipped, and when it is necessary to drill holes such as blast holes, select the rock drilling machine equipped with the above composite construction device to remove the blast holes. Since the holes are drilled, it is possible to continuously carry out the work of hitting the convex portion of the pit excavated surface after earth removal and the support work of the pit excavated surface, and also when it is necessary to drill holes such as blast holes. Since drilling work can also be done, mountainous areas Efficiency highway bridge for shinso foundation holes, such as well, and can ensure the safety of the work, moreover improve the open and working environment from agonizing work within shinso foundation hole is made.

【0019】また、複数の深礎基礎用竪穴を同時に施工
する場合にも、1つの竪穴ではクラムシェルを利用して
排土作業を行ない、他の竪穴では深礎基礎施工機を利用
して掘削作業を同時に行ない、さらにこれらの作業を交
互に同時並行して行なうから、クラムシェルの排土作業
時間と深礎基礎施工機による作業時間との差を利用して
排土作業と複数の深礎基礎用竪穴の掘削作業とが同時に
効率良く、かつ作業の安全性を確保しながら複数の深礎
基礎用竪穴を同時に完成できる。さらに竪穴の掘削口地
表面が段違いになっている地形に複数個の深礎基礎用竪
穴を施工する場合でも平地の場合と同様に複数個の竪穴
を同時に完成できる効果がある。
Further, even when a plurality of deep foundation foundation pits are to be constructed at the same time, the clam shell is used to remove soil in one pit and the deep foundation foundation construction machine is used to excavate in other pits. Since the work is performed at the same time and these works are performed alternately in parallel, the difference between the clamshell earth removal work time and the work time of the deep foundation work machine is used to perform the earth removal work and multiple deep foundation works. It is possible to complete multiple deep foundation foundation pits at the same time while efficiently excavating the foundation pits and ensuring work safety. Further, even when a plurality of deep foundation foundation pits are constructed on a terrain where the ground surface of the pit is uneven, there is an effect that a plurality of pits can be completed at the same time as in the case of flat ground.

【図面の簡単な説明】[Brief description of drawings]

【図1】本実施例の縦断面説明図である。FIG. 1 is a vertical cross-sectional explanatory view of the present embodiment.

【図2】本実施例の動作を説明する平面図である。FIG. 2 is a plan view for explaining the operation of this embodiment.

【図3】他の実施例の動作を説明する平面図である。FIG. 3 is a plan view illustrating the operation of another embodiment.

【図4】他の実施例の縦断面説明図である。FIG. 4 is a vertical cross-sectional explanatory view of another embodiment.

【符号の説明】[Explanation of symbols]

1 セグメント 2 自走フレーム 3 吊フレーム 4 深礎基礎施工機 5 ウインチ 6 ワイヤ 7 複合施工装置 8 吊り架台 9 旋回フレーム 10 操作室 11 壁面支保装置 12 グリッパ 13 クラムシェル 14 架台 15 ブーム P 深礎基礎用竪穴 A 上地表面 B 下地表面 1 Segment 2 Self-propelled frame 3 Suspended frame 4 Deep foundation foundation construction machine 5 Winch 6 Wire 7 Combined construction equipment 8 Suspension stand 9 Swivel frame 10 Control room 11 Wall support device 12 Gripper 13 Clamshell 14 Stand 15 Boom P Deep foundation foundation Vertical hole A Top surface B Base surface

───────────────────────────────────────────────────── フロントページの続き (72)発明者 伊藤 達男 千葉県流山市駒木518番地1 三井建設 株式会社技術研究所内 (72)発明者 三浦 豊 東京都中央区日本橋室町2丁目1番1号 株式会社三井三池製作所内 (72)発明者 浜田 峻史 福岡県大牟田市旭町2丁目28番地 株式 会社三井三池製作所 三池事業所内 (72)発明者 野中 正広 東京都中央区日本橋室町2丁目1番1号 株式会社三井三池製作所内 (72)発明者 三小田 光広 福岡県大牟田市旭町2丁目28番地 株式 会社三井三池製作所 三池事業所内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Tatsuo Ito 518 Komagaki, Nagareyama City, Chiba Prefecture Mitsui Construction Co., Ltd. Technical Research Institute (72) Inventor Yutaka Miura 2-1-1 Nihombashi Muromachi, Chuo-ku, Tokyo Mitsui Miike Works (72) Inventor Satoshi Hamada 2-28 Asahi-cho, Omuta-shi, Fukuoka Mitsui Miike Works Miike Works (72) Inventor Masahiro Nonaka Nihombashi-Muromachi 2-chome, Chuo-ku, Tokyo Mitsui Miike Manufacturing Co., Ltd. (72) Inventor Mitsuhiro Mioda 2-28 Asahi-cho, Omuta-shi, Fukuoka Mitsui Miike Manufacturing Co., Ltd. Miike Works

Claims (4)

(57)【特許請求の範囲】(57) [Claims] 【請求項1】 地上において自在に走行可能な自走フレ
ーム上に吊フレームが装備された深礎基礎施工機を利用
して行なう深礎基礎掘削施工法において、前記深礎基礎
施工機の自走フレーム上に配置されたウインチによって
該自走フレームの中央附近から排土作業が完了した竪穴
内に複合施工装置を吊り下げた後、該複合施工装置に装
備した掘削機を利用して該竪穴掘削面の凸部の当り取り
を行ない、次いで該複合施工装置に装備した壁面支保装
置を利用して掘削壁面の支保作業を行ない、また該複合
施工装置に装備した削岩機を選択して発破孔等の削孔を
行なうことを特徴とした深礎基礎掘削施工法。
1. In a deep foundation digging construction method performed by using a deep foundation foundation construction machine equipped with a suspension frame on a self-propelled frame that can freely travel on the ground, the self-propelled construction of the deep foundation foundation construction machine. After suspending the combined construction device from the vicinity of the center of the self-propelled frame by the winch arranged on the frame into the vertical hole, the vertical excavation using the excavator equipped in the combined construction device. The convex portion of the surface is hit, and then the excavation wall surface is supported by using the wall support device equipped in the composite construction device, and the rock drilling machine installed in the composite construction device is selected to blast holes. A deep foundation foundation excavation construction method characterized by making holes such as.
【請求項2】 クラムシェル等により排土作業を2つの
深礎基礎用竪穴で交互に行なっている掘削作業におい
て、1つの竪穴ではクラムシェル等による排土作業を、
他の竪穴では深礎基礎施工機を利用した掘削作業を同時
に行ない、次いでこれらの作業を交互に同時並行して行
なうことを特徴とした請求項1記載の深礎基礎掘削施工
法。
2. In excavation work in which two deep foundation foundation vertical holes are alternately used for excavating work using a clamshell or the like, one vertical hole is used for excavating work using a clamshell or the like.
2. The method for excavating a deep foundation work according to claim 1, wherein excavation work using a deep foundation work machine is simultaneously performed in other vertical holes, and then these operations are alternately and concurrently performed.
【請求項3】 クラムシェル等により排土作業を3つ以
上の深礎基礎用竪穴で行なっている掘削作業において、
1台のクラムシェル等による排土作業と、2台以上の深
礎基礎施工機を利用した掘削作業を同時に行ない、次い
でこれらの作業を順次入れ替わって同時並行して行なう
ことを特徴とした請求項1記載の深礎基礎掘削施工法。
3. In the excavation work in which the earth removal work is performed by three or more deep foundation foundation pits using a clam shell or the like,
Claims characterized in that soil removal work by one clam shell or the like and excavation work using two or more deep foundation construction machines are carried out at the same time, and then these works are sequentially replaced and carried out in parallel. Deep foundation foundation excavation construction method described in 1.
【請求項4】 地表面が段違いになっている地形に複数
個の深礎基礎用竪穴を施工する際、クラムシェル等によ
り排土作業を行なっている該深礎基礎用竪穴の掘削口面
間に上下の落差がある場合における掘削作業おいて、該
下地表面の掘削口の上に分割ブロック式架台を設け、該
架台の上面が前記上地表面の高さと同一となるように設
置し、深礎基礎施工機が上下地表面にある掘削口を順次
移動して掘削作業を施工し、他方の竪穴ではクラムシェ
ル等により排土作業を同時並行して行なうことを特徴と
した請求項1記載の深礎基礎掘削施工法。
4. When excavating a plurality of deep foundation foundation pits on a terrain where the ground surface is uneven, excavation work is carried out by a clam shell or the like between the excavation face surfaces of the deep foundation foundation pits. In the case of excavation work when there is a vertical drop in the ground, a divided block type pedestal is provided above the excavation opening on the ground surface, and the top surface of the pedestal is installed at the same height as the above ground surface. 2. The foundation foundation construction machine moves excavation holes on the surface of the upper base one by one to carry out excavation work, and in the other vertical hole, excavation work is carried out simultaneously in parallel with a clam shell or the like. Deep foundation foundation excavation construction method.
JP4142243A 1992-05-07 1992-05-07 Deep foundation foundation excavation construction method Expired - Fee Related JP2553987B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4142243A JP2553987B2 (en) 1992-05-07 1992-05-07 Deep foundation foundation excavation construction method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4142243A JP2553987B2 (en) 1992-05-07 1992-05-07 Deep foundation foundation excavation construction method

Publications (2)

Publication Number Publication Date
JPH05311980A JPH05311980A (en) 1993-11-22
JP2553987B2 true JP2553987B2 (en) 1996-11-13

Family

ID=15310775

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4142243A Expired - Fee Related JP2553987B2 (en) 1992-05-07 1992-05-07 Deep foundation foundation excavation construction method

Country Status (1)

Country Link
JP (1) JP2553987B2 (en)

Also Published As

Publication number Publication date
JPH05311980A (en) 1993-11-22

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