JP4427456B2 - Mountain-crested parent pile construction method - Google Patents

Mountain-crested parent pile construction method Download PDF

Info

Publication number
JP4427456B2
JP4427456B2 JP2005003756A JP2005003756A JP4427456B2 JP 4427456 B2 JP4427456 B2 JP 4427456B2 JP 2005003756 A JP2005003756 A JP 2005003756A JP 2005003756 A JP2005003756 A JP 2005003756A JP 4427456 B2 JP4427456 B2 JP 4427456B2
Authority
JP
Japan
Prior art keywords
pile
parent
wall
underground
pressure plate
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
JP2005003756A
Other languages
Japanese (ja)
Other versions
JP2006193896A (en
Inventor
博己 三宅
賢治 木村
高志 野口
達成 伊藤
浩明 尾河
哲也 遠藤
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.)
Toda Corp
Original Assignee
Toda 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 Toda Corp filed Critical Toda Corp
Priority to JP2005003756A priority Critical patent/JP4427456B2/en
Publication of JP2006193896A publication Critical patent/JP2006193896A/en
Application granted granted Critical
Publication of JP4427456B2 publication Critical patent/JP4427456B2/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Bulkheads Adapted To Foundation Construction (AREA)
  • Underground Structures, Protecting, Testing And Restoring Foundations (AREA)

Description

本発明は、例えば、連続壁を有する既存の建物を新しく建て直す場合に、既存の外壁を止水壁として利用して、親杭横矢板工法を実現する山留め先建て親杭工法に関するものである。   For example, the present invention relates to a pile retaining built-up pile method for realizing a pile piled sheet pile method using an existing outer wall as a water blocking wall when an existing building having a continuous wall is newly built.

従来、既存の建物を解体して、そこへ新たに建物を構築する場合に、前記既存建物の一部を残し、例えば、既存建物の壁体を残してその内側に地中連続壁を構築し、地下部分の不要部分を解体して新たに建物を構築する工法（特許文献１）、又は、地下外壁や地中梁などを残して作業空間を確保しそこから新しい建物用の土留め壁を構築する工法（特許文献２）、などが知られている（特許文献１、２参照）。
特開平１１−６２２７２号公報 特開２００３−２９３３６３号公報 Conventionally, when dismantling an existing building and building a new building there, leave a part of the existing building, for example, leave a wall of the existing building and build a continuous underground wall inside it , A method of constructing a new building by dismantling unnecessary parts of the underground part (Patent Document 1), or securing a working space by leaving the underground outer walls and underground beams, etc. A construction method (Patent Document 2) is known (see Patent Documents 1 and 2).
JP 11-62272 A JP 2003-293363 A

しかし、地下躯体を有する既存の建物を解体して新しい建物を構築する従来の工法では、地下水位が高い場合にＳＭＷ工法による山留め壁（地下連続壁）を構築する必要があって、既存の地下外壁及び耐圧版を解体しながらの工事となる。よって、解体作業機械のロックオーガー等の使用による振動・騒音が周囲への騒音公害となり、また、工期が掛かるとともに大量の汚泥処理が発生して、コストが嵩むことになる。本発明に係る山留め先建て親杭工法は、このような課題を解決するために提案されたものである。   However, in the conventional method of constructing a new building by dismantling an existing building with an underground structure, it is necessary to construct a retaining wall (underground continuous wall) by the SMW method when the groundwater level is high. The work will be done while dismantling the outer wall and pressure plate. Therefore, vibration and noise due to the use of a lock auger or the like of the dismantling work machine become noise pollution to the surroundings, and the construction period is increased and a large amount of sludge treatment is generated, resulting in an increase in cost. The prefabricated pile pile method according to the present invention is proposed in order to solve such a problem.

本発明に係る山留め先建て親杭工法の上記課題を解決して目的を達成するための要旨は、既存建物を解体撤去後にその建物の地下外壁と耐圧版とを残し、前記地下外壁と耐圧版とに支持させて前記地下外壁の内側に親杭を立設し、前記親杭の間に横矢板を横架し、当該親杭横矢板の内側で新規建物を構築することである。   The gist for achieving the object by solving the above-mentioned problems of the prefabricated pile pile method according to the present invention is to leave the underground outer wall and pressure plate of the existing building after dismantling and removing the underground outer wall and pressure plate. It is supported to stand a parent pile inside the underground outer wall, a horizontal sheet pile is laid across the parent pile, and a new building is constructed inside the parent pile horizontal sheet pile.

前記親杭横矢板を構築した後に、地下外壁と親杭横矢板との間に土砂を埋め戻して、親杭横矢板の内側に建築機械搬入用の土砂を埋め戻しすること、；
前記親杭は、耐圧版に設けられて前記親杭の下部が嵌合する支持凹部と、地下外壁から略水平に突設され前記親杭の上部に取り付けられる支持アングルとによって、支持されて立設されること、；
前記既存建物用の地下外壁と耐圧版と、親杭横矢板とは、解体撤去されずに埋設されること、；
前記耐圧版に立設した親杭の基部でその外側に、当該立設された親杭間に横架される建て込み精度確保用の鋼チャンネルが設けられていること、；
を含むものである。 Wherein after building the soldier piles and lagging, it was back filled with earth and sand between the underground walls and Shinkui transverse sheet pile, to backfill sand for construction machinery carried inside the soldier piles and lagging;
The parent pile is supported by a support recess provided in the pressure plate and fitted with a lower portion of the parent pile, and a support angle protruding substantially horizontally from the underground outer wall and attached to the upper portion of the parent pile. Being established;
The underground outer wall and pressure plate for the existing building, and the main pile sheet pile are buried without being dismantled;
A steel channel for ensuring erection accuracy is provided on the outside of the base of the main pile that is erected on the pressure-resistant plate;
Is included.

本発明の山留め先建て親杭工法によれば、解体した既存の地中連続壁及び地下躯体の地下外壁を止水壁として利用し、更に、既存耐圧版を親杭の支持材に利用するので、汚泥処理が減り、手間が掛からずコストの低減となって、親杭横矢板を容易に構築することができる。親杭を既存の耐圧版に支持用の凹部を設けることで支持させるので、親杭の心材長さを短くすることができる。また、前記耐圧版の上に杭の位置を墨出しすることができて、建入れ精度が向上する。前記既存の外壁や耐圧版を解体する必要がなくなるので、産業廃棄物が大量に生じないばかりでなく、近隣への騒音公害も防止できる。更に、全体の工期が短縮されてコストの低減となる。   According to the pile retaining method of the present invention, the existing underground continuous wall and the underground outer wall of the underground frame are used as the water blocking wall, and the existing pressure plate is used as the support material for the parent pile. The sludge treatment is reduced, the labor is not reduced, and the cost is reduced, so that the main pile pile sheet pile can be easily constructed. Since the parent pile is supported by providing a recess for supporting the existing pressure-resistant plate, the core material length of the parent pile can be shortened. Further, the position of the pile can be marked on the pressure plate, and the erection accuracy is improved. Since it is not necessary to dismantle the existing outer wall and pressure plate, not only a large amount of industrial waste is generated, but also noise pollution to the neighborhood can be prevented. Furthermore, the entire construction period is shortened, resulting in cost reduction.

本発明に係る山留め先建て親杭工法は、図１に示すように、既存の建物における上階と地下階とを、地下連続壁１及び建物の地下躯体２を地下外壁３として残して、解体する。前記地下外壁３が残されることで、地下水位の高い地盤においても、工事中の止水壁として利用できるものである。この既存建物の地下階は、地下１階であり、全体の敷地の広さに関係するが、本工法は、重機搬入の関係上、地下１階〜地下２階程度が適当である。   As shown in FIG. 1, the prefabricated pile pile method according to the present invention dismantles the upper floor and the underground floor of an existing building, leaving the underground continuous wall 1 and the underground building 2 of the building as the underground outer wall 3. To do. By leaving the underground outer wall 3, it can be used as a water blocking wall during construction even in the ground having a high groundwater level. The basement floor of this existing building is the first basement floor, which is related to the size of the entire site, but this construction method is appropriate from the first basement level to the second basement level because of heavy equipment loading.

次ぎに、前記地下外壁３と前記既存の耐圧版４とに支持させて前記地下外壁３の内側に親杭５を立設する。この立設には、図２乃至図３に示すように、既存の耐圧版４に、例えば、縦横の寸法がＨ型鋼の親杭５が嵌挿できる、３７０×３７０ｍｍで、深さが約１５０ｍｍの支持凹部６をはつりとって形成する。   Next, the main pile 5 is erected inside the underground outer wall 3 while being supported by the underground outer wall 3 and the existing pressure-resistant plate 4. As shown in FIG. 2 to FIG. 3, for this erection, for example, a parent pile 5 having a vertical and horizontal dimension of H-shaped steel can be inserted into the existing pressure plate 4 370 × 370 mm, and the depth is about 150 mm. The support recess 6 is suspended and formed.

前記支持凹部６を所要間隔で適宜数設けるために墨出しを行うが、これは前記既存の耐圧版４の上面において施工されるので、墨出し作業は容易である。そして、図１に示すように、既存の地下１階を解体した後の当該地下階に搬入したクレーン７で親杭５を吊り上げて、その基部５ａを前記支持凹部６に嵌挿させる。   Inking is performed in order to provide an appropriate number of the supporting recesses 6 at a required interval. However, since this is applied on the upper surface of the existing pressure-resistant plate 4, the inking operation is easy. And as shown in FIG. 1, the parent pile 5 is lifted with the crane 7 carried in the said underground floor after demolishing the existing underground 1st floor, and the base 5a is inserted in the said support recessed part 6. As shown in FIG.

前記支持凹部６の位置にて起立させられた親杭５には、図１に示すように、地下外壁３から略水平に突設された、例えば、Ｌ型チャンネル等の支持アングル８が接続され固定される。具体的には、前記地下外壁３におけるＨ鋼をはつり出して、それに前記支持アングル８の端部をボルト締結、若しくは、溶接することで、固着させるものである。   As shown in FIG. 1, a support angle 8 such as an L-shaped channel that protrudes substantially horizontally from the underground outer wall 3 is connected to the parent pile 5 raised at the position of the support recess 6. Fixed. Specifically, the H steel in the underground outer wall 3 is pulled out and fixed to the end of the support angle 8 by bolting or welding.

また、前記基部５ａには、耐圧版４上に載置され水平方向の位置決めをする鋼チャンネルとしてのＣ型鋼９が固定され、その側面を当接させて横架される。このＣ型鋼９は、アンカーボルト１０などで耐圧版４に固定され、親杭５とは、ボルト・ナット１１等で固定される。このようにして、各支持凹部６に親杭５を各々起立させる。   Further, a C-shaped steel 9 as a steel channel that is placed on the pressure-resistant plate 4 and positioned in the horizontal direction is fixed to the base portion 5a, and the base portion 5a is horizontally mounted with its side surfaces in contact with each other. The C-shaped steel 9 is fixed to the pressure plate 4 with anchor bolts 10 or the like, and is fixed to the parent pile 5 with bolts / nuts 11 or the like. In this way, each of the parent piles 5 is raised in each support recess 6.

そして、前記支持凹部６の各々において、モルタル１２が埋め込まれる。親杭５を立設した後、図３に示すように、この親杭５，５間に横矢板１３を横架させる。その後、親杭横矢板を構築した後に、地下外壁３と親杭横矢板との間の空間１４に土砂を埋め戻す。   And in each of the said support recessed parts 6, the mortar 12 is embedded. After the parent pile 5 is erected, as shown in FIG. 3, a horizontal sheet pile 13 is placed between the parent piles 5 and 5. Then, after constructing the parent pile sheet pile, earth and sand are backfilled in the space 14 between the underground outer wall 3 and the parent pile sheet pile.

そして、図１に示す新しい建物を構築する予定の地下空間１５に、例えば、地下１階部分を埋め尽くすように４〜５ｍ程度の高さにして、建築機械搬入用の土砂を埋め戻す。これにより、この地下空間１５に大型重機の搬入が可能となる。なお、敷地が十分に広い場合で、その一角に重機搬入用の搬入路（スロープ）を形成できるのであれば、前記地下空間１５の全体への、土砂の埋め戻しは必要ない。   Then, in the underground space 15 where the new building shown in FIG. 1 is to be constructed, for example, the height of about 4 to 5 m is filled so as to fill the first floor of the basement, and the earth and sand for carrying in the construction machine is backfilled. Thereby, large heavy machinery can be carried into the underground space 15. In addition, if the site is sufficiently large and a carry-in path (slope) for carrying heavy equipment can be formed at one corner thereof, it is not necessary to backfill the entire underground space 15 with earth and sand.

その後は、埋め戻した土砂の上に重機を搬入し、新しい建物用の支持杭、例えば、逆打ち工法の場合には構真柱を構築する。この構真柱と既存の支持杭との位置が重複してしまう場合には、その既存の支持杭を撤去する。また、位置的に重複せず、離れている場合には、既存の耐圧版４に孔を開けて構真柱を設置するものである。   After that, heavy machinery is carried on the backfilled earth and sand, and a supporting pile for a new building, for example, a construction pillar is constructed in the case of the reverse driving method. When the position of this structural pillar and the existing support pile overlaps, the existing support pile is removed. Further, when they are not overlapped in position and are separated from each other, a hole is formed in the existing pressure-resistant plate 4 to install a construction pillar.

次ぎに、１階部分の床スラブを構築して、その後は、作業的に平行にして、上層階を構築しながら、下層では前記埋め戻し土砂を掘削しながら腹起しや切り梁等を配設しながら根切りして新しい耐圧版を形成し、更に地下外壁を形成して、地下１階部分を構築する。この地下１階部分では、前記親杭５に予め横矢板１３が取り付けられているので、土砂の掘削に専念するだけでよく、掘削作業能率が向上する。   Next, a floor slab for the first floor is constructed, and then the work is paralleled to construct the upper floor, while the lower floor is excavated with the backfill sediment and the beams are arranged. A new pressure-resistant plate is formed by rooting while it is installed, and an underground outer wall is further formed to construct the first basement part. In the first basement portion, the cross pile 13 is attached to the parent pile 5 in advance, so it is only necessary to concentrate on excavation of earth and sand, and excavation work efficiency is improved.

こうして、新しい建物が構築され、既存建物用の地下外壁３と耐圧版４と、親杭横矢板５とは、解体撤去されずに埋設される。なお、親杭５の頭部が不要であれば、その一部を撤去して、土砂，コンクリート，モルタル等で埋めるものである。このようにして、既存建物の跡に新しい建物を構築する場合に、ＳＭＷ工法を親杭横矢板工法へと転換させることで、工期の短縮とコストの低減が可能となるものである。   In this way, a new building is constructed, and the underground outer wall 3 for the existing building, the pressure plate 4 and the main pile side sheet pile 5 are buried without being dismantled. In addition, if the head of the main pile 5 is unnecessary, the part will be removed and it will be filled with earth and sand, concrete, mortar, etc. In this way, when a new building is constructed on the trace of an existing building, the construction period can be shortened and the cost can be reduced by converting the SMW method to the parent pile sheet pile method.

本発明に係る山留め先建て親杭工法を示す説明図である。It is explanatory drawing which shows the mountain retaining point-built parent pile construction method which concerns on this invention. 同本発明の山留め先建て親杭工法における、図１中のＡ視部分の拡大断面図である。It is an expanded sectional view of the A view part in FIG. 1 in the mountain retaining point built-in parent pile construction method of the same invention. 同本発明の山留め先建て親杭工法における、一部を平面視した説明図である。It is explanatory drawing which planarly viewed a part in the pile retaining point main pile construction method of the same invention.

符号の説明Explanation of symbols

１ 地下連続壁、
２ 地下躯体、
３ 地下外壁、
４ 耐圧版、
５ 親杭、 ５ａ 基部、
６ 支持凹部、
７ クレーン、
８ 支持アングル、
９ Ｃ型鋼、
１０ アンカーボルト、
１１ ボルト・ナット、
１２ モルタル、
１３ 横矢板、
１４ 空間、
１５ 地下空間。 1 underground continuous wall,
2 underground building,
3 Underground wall,
4 pressure plate,
5 parent pile, 5a base,
6 Support recess,
7 crane,
8 Support angle,
9 C steel,
10 anchor bolt,
11 Bolts and nuts,
12 mortar,
13
14 space,
15 Underground space.

Claims (5)

既存建物を解体撤去後にその建物の地下外壁と耐圧版とを残し、前記地下外壁と耐圧版とに支持させて前記地下外壁の内側に親杭を立設し、前記親杭の間に横矢板を横架し、当該親杭横矢板の内側で新規建物を構築すること、
を特徴とする山留め先建て親杭工法。 After dismantling and removing the existing building, leave the underground outer wall and the pressure plate of the building, and support the basement outer wall and the pressure plate to establish a parent pile inside the underground outer wall, and a horizontal sheet pile between the parent piles To build a new building inside the parent pile sheet pile,
This is a mountain pile-built parent pile construction method. 親杭横矢板を構築した後に、地下外壁と親杭横矢板との間に土砂を埋め戻して、親杭横矢板の内側に建築機械搬入用の土砂を埋め戻しすること、
を特徴とする請求項１に記載の山留め先建て親杭工法。 After building the soldier piles and lagging, and back fill the earth and sand between the underground outer wall and Shinkui horizontal sheet pile, to backfill the earth and sand for construction machinery carried into the inside of the soldier piles and lagging it,
The mountain pile-built parent pile construction method according to claim 1, wherein: 親杭は、耐圧版に設けられて前記親杭の下部が嵌合する支持凹部と、地下外壁から略水平に突設され前記親杭の上部に取り付けられる支持アングルとによって、支持されて立設されること、
を特徴とする請求項１または２に記載の山留め先建て親杭工法。 The parent pile is supported and erected by a support recess provided in the pressure plate and fitted with the lower portion of the parent pile, and a support angle protruding substantially horizontally from the underground outer wall and attached to the upper portion of the parent pile. Being
The mountain pile-built parent pile construction method according to claim 1 or 2. 既存建物用の地下外壁と耐圧版と、親杭横矢板とは、解体撤去されずに埋設されること、
を特徴とする請求項１乃至３のいずれかに記載の山留め先建て親杭工法。 The underground outer wall and pressure plate for the existing building, and the main pile sheet piles are buried without being dismantled,
The pile-carrying parent pile method according to any one of claims 1 to 3. 耐圧版に立設した親杭の基部でその外側に、当該立設された親杭間に横架される建て込み精度確保用の鋼チャンネルが設けられていること、
を特徴とする請求項１乃至４のいずれかに記載の山留め先建て親杭工法。 The base of the main pile set up on the pressure plate is provided on the outside with a steel channel for securing the erection accuracy that is installed between the set up parent piles.
The pile-carrying parent pile method according to any one of claims 1 to 4.
JP2005003756A 2005-01-11 2005-01-11 Mountain-crested parent pile construction method Expired - Fee Related JP4427456B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2005003756A JP4427456B2 (en) 2005-01-11 2005-01-11 Mountain-crested parent pile construction method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005003756A JP4427456B2 (en) 2005-01-11 2005-01-11 Mountain-crested parent pile construction method

Publications (2)

Publication Number Publication Date
JP2006193896A JP2006193896A (en) 2006-07-27
JP4427456B2 true JP4427456B2 (en) 2010-03-10

Family

ID=36800194

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2005003756A Expired - Fee Related JP4427456B2 (en) 2005-01-11 2005-01-11 Mountain-crested parent pile construction method

Country Status (1)

Country Link
JP (1) JP4427456B2 (en)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3761323B2 (en) * 1997-11-06 2006-03-29 株式会社竹中工務店 How to rebuild a building
JP3728654B2 (en) * 2000-04-19 2005-12-21 清水建設株式会社 Building dismantling and construction methods

Also Published As

Publication number Publication date
JP2006193896A (en) 2006-07-27

Similar Documents

Publication Publication Date Title
JP6010070B2 (en) Temporary closing method for existing underwater structures
KR100722665B1 (en) Steel guide wall for construction of underground diaphragm wall and construction method of underground diaphragm wall using the same
KR20100068597A (en) A shoring method using arch plate pile and h-pile
CN102839672B (en) A kind of foundation pit supporting method preventing the displacement of soft base cement mixing pile from transfiniting
JP5180022B2 (en) Constraining method for mountain retaining wall head
CN113513025A (en) Foundation pit support form LHCW construction method
JP6043006B1 (en) Construction method of underground structure
JP6632028B2 (en) Concrete assembly retaining wall
JP2007308951A (en) Method of constructing outer peripheral column by inverted construction method
JP2018009336A (en) Underground space construction method
JP4427456B2 (en) Mountain-crested parent pile construction method
JP5777435B2 (en) Reinforcement method for foundations for small buildings
JP5378066B2 (en) Mountain fastening method
JP3682704B2 (en) Built-in column construction method without casing
JP2007107233A (en) Construction method for earth retaining structure
JP2017197910A (en) Construction method of earth retaining wall structure, and earth retaining wall structure
JP2011157719A (en) Earth retaining method
JP4780004B2 (en) Reinforcing and reinforcing method for existing quay and its reinforcing structure
JPH11190024A (en) Earth retaining work
KR101256311B1 (en) Structual deepening method
CN217150255U (en) Foundation pit support form LHCW tool
JP4146250B2 (en) Open caisson bottom plate construction method
KR20100117826A (en) Construction method of earth retaining wall
JP4879582B2 (en) How to extend the basement floor under the foundation of an existing building
CN211973510U (en) Steel sheet pile and root pile composite foundation pit supporting structure

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20060927

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20080701

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20090630

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20090727

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20091203

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20091214

R150 Certificate of patent or registration of utility model

Free format text: JAPANESE INTERMEDIATE CODE: R150

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20121218

Year of fee payment: 3

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20151218

Year of fee payment: 6

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

LAPS Cancellation because of no payment of annual fees