JPH0510084A - Execution method of deeper depth man hole - Google Patents
Execution method of deeper depth man holeInfo
- Publication number
- JPH0510084A JPH0510084A JP3160359A JP16035991A JPH0510084A JP H0510084 A JPH0510084 A JP H0510084A JP 3160359 A JP3160359 A JP 3160359A JP 16035991 A JP16035991 A JP 16035991A JP H0510084 A JPH0510084 A JP H0510084A
- Authority
- JP
- Japan
- Prior art keywords
- hole
- ceiling
- ground
- manhole
- excavated
- 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.)
- Granted
Links
Landscapes
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は大深度発進立坑等の人孔
の如き大深度人孔の施工法に係るものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for constructing a large-depth human hole such as a human-hole of a deep-starting shaft.
【０００２】[0002]
【従来の技術】従来この種の施工においては、地上から
連続地中壁用掘削孔を掘削し、同掘削孔のうち人孔部分
に相当する外壁を鉄筋コンクリートで構築したのち、同
人孔の上端部分をシートパイル等によって山留壁を仮設
し、同仮設山留壁と人孔外壁部分で囲まれた地盤を所定
深さ掘削して、人孔天井部と底盤部に鉄筋コンクリート
を打設して人孔を構築したのち、前記人孔天井部から地
上部まで立坑を鉄筋コンクリートで構築して、前記山留
壁内の空間に土砂を埋戻して仮設山留壁を撤去してい
た。2. Description of the Related Art Conventionally, in this type of construction, an excavation hole for a continuous underground wall is excavated from the ground, and the outer wall corresponding to the human hole portion of the same is constructed by reinforced concrete, and then the upper end portion of the same hole is constructed. The mountain retaining wall is temporarily installed with sheet piles, etc., the ground surrounded by the temporary retaining wall and the outer wall of the manhole is excavated to a predetermined depth, and the reinforced concrete is placed on the ceiling and bottom of the manhole to form a After constructing the hole, a vertical shaft was constructed from the ceiling portion of the manhole to the above-ground portion by reinforced concrete, and earth and sand were buried in the space inside the mountain retaining wall to remove the temporary mountain retaining wall.
【０００３】[0003]
【発明が解決しようとする課題】前記従来の工法によれ
ば、仮設山留壁と人孔外壁部分で囲まれた地盤を所定深
さ全部分にわたって掘削し、この掘削のために仮設山留
壁を構築し、更に前記人孔と立坑の構築後に、前記山留
壁内の空間に土砂埋戻しをし、土砂埋戻後に前記仮設山
留壁を撤去すること、等により地盤の余分掘削や土砂の
埋戻、仮設山留壁の組立解体等の作業が必要となり、大
深度に人孔を構築する場合には施工日数と施工コストが
嵩むという問題があった。According to the above-mentioned conventional method, the ground surrounded by the temporary mountain retaining wall and the outer wall of the manhole is excavated over a predetermined depth, and the temporary mountain retaining wall is used for this excavation. After further constructing the manhole and the shaft, backfilling the earth in the space inside the mountain retaining wall, and removing the temporary mountain retaining wall after the backfilling with sediment, etc. There is a problem in that the work such as backfilling and assembling and dismantling of the temporary mountain retaining wall is required, and that when constructing a human hole at a large depth, the number of construction days and construction cost increase.
【０００４】本発明は前記従来技術の有する問題点を解
決するため提案されたもので、その目的とする処は、余
分な掘削や土砂埋戻し、及び仮設山留壁をなくして、施
工日数の短縮と施工コストの低減を可能とした大深度人
孔の施工法を提供する点にある。The present invention has been proposed in order to solve the problems of the above-mentioned prior art, and its purpose is to eliminate the need for extra excavation, backfilling of earth and sand, and temporary mountain retaining walls, and The point is to provide a construction method for deep-deep human holes that enables reduction in construction cost and construction cost.
【０００５】[0005]
【課題を解決するための手段】前記の目的を達成するた
め、本発明に係る大深度人孔の施工法は、人孔の施工予
定地盤における同人孔の底盤部の下端以下の部分及び天
井部の上端部に所定厚の地盤改良部を造成する第１の工
程と、前記人孔の底盤部の下端まで連続地中壁用掘削孔
を掘削する第２の工程と、同掘削孔内の泥水に泥水固化
材を添加したのち既製の鉄筋コンクリート部材よりなる
人孔外壁部材を沈設する第３の工程と、前記掘削孔内の
泥水が固化して強要の強度を発現したのち地上部から天
井部を貫通する立坑を掘削する第４の工程と、前記天井
部下端から地盤を掘削し、同掘削部に鉄筋コンクリート
人孔天井部を構築する第５の工程と、同鉄筋コンクリー
ト人孔天井部のコンクリート強度が所定強度に達すると
人孔内部を底盤下端まで掘削して鉄筋コンクリート人孔
底盤部を構築する第６工程とより構成されている。In order to achieve the above object, a method of constructing a deep manhole according to the present invention is a portion below the lower end of the bottom part of the manhole in the ground where the manhole is to be constructed and the ceiling part. First step of forming a ground improvement portion having a predetermined thickness at the upper end of the hole, second step of drilling a continuous underground wall drilling hole to the lower end of the bottom of the manhole, and muddy water in the hole The third step of adding the muddy water solidifying material to the slab and then depositing the manhole outer wall member made of ready-made reinforced concrete member, and the muddy water in the digging hole solidifies to express the required strength, and then the above-ground part to the ceiling part. The fourth step of excavating a vertical shaft that penetrates the ground, the fifth step of excavating the ground from the lower end of the ceiling part, and constructing a reinforced concrete manhole ceiling part in the excavation part, and the concrete strength of the reinforced concrete manhole ceiling part When the strength reaches a certain level, the inside of the human hole is below the bottom plate. It is more in the sixth step of constructing a reinforced concrete's pore bottom platen was drilled to.
【０００６】[0006]
【作用】本発明によれば前記したように、第１工程にお
いて人孔の施工予定地盤における同人孔の底盤部の下端
以下の部分及び天井部の上端部に所定厚の地盤改良部を
造成することによって、人孔の底盤部及び天井部が施工
されるべき地盤を補強するとともに、止水するものであ
る。According to the present invention, as described above, in the first step, a ground improvement portion having a predetermined thickness is formed in a portion below the bottom end of the bottom of the manhole in the ground where the construction of the manhole is to be performed and the top end of the ceiling. This reinforces the ground on which the bottom part and the ceiling part of the human hole are to be constructed and also stops the water.
【０００７】しかるのち第２工程において人孔の底盤部
の下端まで連続地中壁用掘削孔を掘削し、第３工程にお
いて同掘削孔内の泥水に泥水固化材を添加して掘削孔壁
の崩落を防止するとともに、地上部で予め製作された既
製の鉄筋コンクリート部材よりなる人孔外壁部材を沈設
して、人孔の外壁を構築するものである。次いで第４工
程において、前記掘削孔内の泥水が固化して所要の強度
を発現し、連続地中壁部の崩壊が防止されると、同連続
地中壁に挟まれた人孔施工地盤に、人孔の天井部分を貫
通する立坑を掘削し、続く第５工程において前記天井部
の下端より地盤を掘削し、同掘削機部に鉄筋コンクリー
ト天井部を構築し、同天井部のコンクリートが所要の強
度を発現すると、同天井部と前記人孔外壁部材とによっ
て囲繞された人孔空間内部を底盤部の下端まで掘削し、
鉄筋コンクリート底盤部を施工することによって大深度
人孔を施工するものである。Then, in the second step, a continuous underground wall excavation hole is excavated to the lower end of the bottom plate of the human hole, and in the third step, muddy water solidifying material is added to the muddy water in the excavation hole to form the excavated hole wall. While preventing the collapse, the outer wall of the human hole is constructed by sinking a human-hole outer wall member made of a prefabricated reinforced concrete member manufactured in advance on the ground. Next, in the fourth step, when the mud in the drill hole solidifies to develop the required strength and the collapse of the continuous underground wall is prevented, the manhole construction ground sandwiched between the continuous underground walls is formed. , Excavating a vertical shaft penetrating the ceiling part of the human hole, and in the subsequent fifth step, excavating the ground from the lower end of the ceiling part, constructing a reinforced concrete ceiling part in the excavator part, and concrete for the ceiling part is required. When the strength is expressed, the inside of the human hole space surrounded by the ceiling portion and the human hole outer wall member is excavated to the lower end of the bottom plate portion,
A large depth human hole is constructed by constructing a reinforced concrete bottom plate.
【０００８】[0008]
【実施例】以下本発明を図示の実施例について説明す
る。人孔Ａの施工地盤１上から平面視で人孔Ａの外壁部
より幾分広く、且つ深さが人孔Ａの底盤部下端以下の部
分の所定の厚さと、人孔Ａの天井部上端部分の所定の厚
さを、グラウト材の注入等によって改良地盤２を造成
し、地盤の補強と止水を図る。（第１工程、図１右半部
参照） 次いで前記地盤１に、平面視で人孔Ａの外壁より幾分広
く、外壁部の壁厚より幅広の連続地中壁用掘削孔３を人
孔Ａの底盤部下端まで公知の掘削工法によって掘削す
る。（第２工程、図１左半部参照）次いで前記掘削孔３
内の泥水３ａに公知の泥水固化材を添加したのち、予め
地上部で製作したプレキヤスト鉄筋コンクリート部材よ
りなる人孔外壁部材４を公知の機械と方法によって前記
掘削孔３の所定位置まで沈設する。（第３工程、図２参
照） 前記掘削孔３内の泥水３ａが固化して所定強度を発現し
たのち、公知の深礎工法、リバースサーキユレーシヨン
工法等によって所要径の立坑を掘削し、コンクリート製
のセグメント５ａを組立てながら人孔Ａの天井部下面ま
で立坑５を構築する。（第４工程、図３参照） 次いで人孔Ａの天井部分下端から人孔天井を施工するの
に必要な深さまで地盤１を掘削して、天井型枠６を組立
ててコンクリートを打設して、鉄筋コンクリート製の人
孔天井部７を構築する。（第５工程、図４参照） 前記天井部７のコンクリート強度が所定強度に達する
と、人孔Ａの内部を底盤部の下端まで掘削し、コンクリ
ートを打設して鉄筋コンクリート製人孔底盤部８を施工
して人孔Ａを完成する。（第６工程、図５参照）The present invention will be described below with reference to the illustrated embodiments. Construction of the human hole A From the ground 1 above, it is somewhat wider than the outer wall of the human hole A, and the depth is a predetermined thickness below the bottom end of the human hole A and the upper end of the ceiling of the human hole A. An improved ground 2 is constructed by injecting grout material or the like to a predetermined thickness of the portion, and the ground is reinforced and water is stopped. (First step, see right half of FIG. 1) Next, in the ground 1, a continuous underground wall excavation hole 3 which is slightly wider than the outer wall of the human hole A in plan view and wider than the wall thickness of the outer wall portion is formed. Excavation is performed to the lower end of the bottom plate portion of A by a known excavation method. (The second step, see the left half of FIG. 1) Next, the excavation hole 3
After a known muddy water solidifying material is added to the muddy water 3a therein, a manhole outer wall member 4 made of a precast cast reinforced concrete member manufactured in advance on the ground portion is sunk to a predetermined position of the excavation hole 3 by a known machine and method. (Third step, see FIG. 2) After the muddy water 3a in the excavation hole 3 is solidified and expresses a predetermined strength, a shaft having a required diameter is excavated by a well-known deep foundation method, a reverse circulation method, etc. The vertical shaft 5 is built up to the lower surface of the ceiling of the human hole A while assembling the concrete segment 5a. (Fourth step, see FIG. 3) Then, the ground 1 is excavated from the lower end of the ceiling portion of the manhole A to a depth necessary for constructing the manhole ceiling, the ceiling formwork 6 is assembled, and concrete is placed. , Constructing a human-hole ceiling 7 made of reinforced concrete. (Fifth step, refer to FIG. 4) When the concrete strength of the ceiling portion 7 reaches a predetermined strength, the inside of the manhole A is excavated to the lower end of the bottom plate portion, and concrete is poured to make the manhole bottom plate portion 8 made of reinforced concrete. Is completed to complete the human hole A. (6th step, see FIG. 5)
【０００９】[0009]
【発明の効果】本発明に係る大深度人孔の施工法によれ
ば前記したように、余分な掘削や土砂の埋戻し作業及び
仮設山留壁の施工が可能となり、また地盤改良工事と連
続地中壁用掘削孔内の泥水の固化によって、人孔躯体構
築時の人孔部分の山留壁の崩壊を防止するとともに、同
人孔内への浸水を防止できるので、作業の安全性が保持
される。更に泥水と残土の処理量が減少するので、公害
が防止され、処理費が節減される。As described above, according to the method for constructing a deep manhole according to the present invention, it is possible to perform extra excavation, backfilling of earth and sand, and construction of a temporary mountain retaining wall, and continuous ground improvement work. By solidifying the muddy water in the underground wall excavation hole, it is possible to prevent collapse of the mountain retaining wall of the human hole part when building the human hole body and prevent water from entering the same hole, so work safety is maintained. To be done. In addition, the amount of muddy water and the amount of residual soil to be treated will be reduced, which will prevent pollution and reduce treatment costs.
【図１】右半部及び左半部は夫々本発明に係る大深度人
孔の施工法の一実施例の第１工程及び第２工程を示す縦
断面図である。FIG. 1 is a vertical cross-sectional view showing a first half and a second half, respectively, of a right half part and a left half part of an embodiment of a method for constructing a deep-deep human hole according to the present invention.
【図２】本発明の第３工程を示す縦断面図である。FIG. 2 is a vertical sectional view showing a third step of the present invention.
【図３】本発明の第４工程を示す縦断面図である。FIG. 3 is a vertical sectional view showing a fourth step of the present invention.
【図４】本発明の第５工程を示す縦断面図である。FIG. 4 is a vertical sectional view showing a fifth step of the present invention.
【図５】本発明の第６工程を示す縦断面図である。FIG. 5 is a vertical sectional view showing a sixth step of the present invention.
【図６】図１の平面図である。FIG. 6 is a plan view of FIG.
【図７】図２の平面図である。FIG. 7 is a plan view of FIG.
【図８】図３の平面図である。FIG. 8 is a plan view of FIG.
【図９】図４の平面図である。FIG. 9 is a plan view of FIG.
【図１０】図５の平面図である。FIG. 10 is a plan view of FIG.
【図１１】本発明の方法で構築した人孔の縦断面図であ
る。FIG. 11 is a vertical sectional view of a human hole constructed by the method of the present invention.
【図１２】図１１の平面図である。FIG. 12 is a plan view of FIG. 11.
【図１３】図１１の矢視イ─イ図である。FIG. 13 is an arrow view of FIG. 11.
Ａ 人孔 １ 地盤 ２ 改良地盤 ３ 掘削孔 ３ａ 泥水 ４ 人孔外壁部材 ５ 立坑 ５ａ セグメント ７ 人孔天井部 ８ 人孔底盤部 A human hole 1 ground 2 improved ground 3 excavation hole 3a mud 4 human hole outer wall member 5 vertical shaft 5a segment 7 human hole ceiling 8 human hole bottom
Claims (1)
盤部の下端以下の部分及び天井部の上端部に所定厚の地
盤改良部を造成する第１の工程と、前記人孔の底盤部の
下端まで連続地中壁用掘削孔を掘削する第２の工程と、
同掘削孔内の泥水に泥水固化材を添加したのち既製の鉄
筋コンクリート部材よりなる人孔外壁部材を沈設する第
３の工程と、前記掘削孔内の泥水が固化して強要の強度
を発現したのち地上部から天井部を貫通する立坑を掘削
する第４の工程と、前記天井部下端から地盤を掘削し、
同掘削部に鉄筋コンクリート人孔天井部を構築する第５
の工程と、同鉄筋コンクリート人孔天井部のコンクリー
ト強度が所定強度に達すると人孔内部を底盤下端まで掘
削して鉄筋コンクリート人孔底盤部を構築する第６工程
とよりなることを特徴とする大深度人孔の施工法。Claims: 1. A first step of forming a ground improvement portion having a predetermined thickness at a portion below the bottom end of the bottom of the manhole and the top end of the ceiling in the ground where the construction of the manhole is planned, A second step of excavating a continuous underground wall excavation hole to the lower end of the bottom plate portion of the human hole;
After the third step of adding the muddy water solidifying material to the muddy water in the drill hole and then depositing the manhole outer wall member made of ready-made reinforced concrete member, and after the muddy water in the drill hole solidifies to exert the required strength. A fourth step of excavating a vertical shaft penetrating the ceiling portion from the above-ground portion, and excavating the ground from the lower end of the ceiling portion,
No. 5 to construct a reinforced concrete human-hole ceiling in the excavation part
And a sixth step of constructing a reinforced concrete manhole bottom plate by excavating the inside of the manhole to the bottom plate bottom when the concrete strength of the reinforced concrete manhole ceiling reaches a predetermined strength. How to construct a human hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3160359A JP2764482B2 (en) | 1991-07-01 | 1991-07-01 | Construction method of large depth human hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3160359A JP2764482B2 (en) | 1991-07-01 | 1991-07-01 | Construction method of large depth human hole |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0510084A true JPH0510084A (en) | 1993-01-19 |
| JP2764482B2 JP2764482B2 (en) | 1998-06-11 |
Family
ID=15713273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3160359A Expired - Fee Related JP2764482B2 (en) | 1991-07-01 | 1991-07-01 | Construction method of large depth human hole |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2764482B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6548804B1 (en) | 1998-09-30 | 2003-04-15 | Honda Giken Kogyo Kabushiki Kaisha | Apparatus for detecting an object using a differential image |
| CN104963360A (en) * | 2015-06-11 | 2015-10-07 | 芜湖鸣人热能设备有限公司 | Construction technology facilitating underground storage of cables |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5349816A (en) * | 1976-10-19 | 1978-05-06 | Nippon Pressed Concrete Kk | Underground wall construction method |
| JPS6483799A (en) * | 1987-09-24 | 1989-03-29 | Shimizu Construction Co Ltd | Method of constructing underground space |
-
1991
- 1991-07-01 JP JP3160359A patent/JP2764482B2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5349816A (en) * | 1976-10-19 | 1978-05-06 | Nippon Pressed Concrete Kk | Underground wall construction method |
| JPS6483799A (en) * | 1987-09-24 | 1989-03-29 | Shimizu Construction Co Ltd | Method of constructing underground space |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6548804B1 (en) | 1998-09-30 | 2003-04-15 | Honda Giken Kogyo Kabushiki Kaisha | Apparatus for detecting an object using a differential image |
| DE19947062B4 (en) * | 1998-09-30 | 2005-04-14 | Honda Giken Kogyo K.K. | Apparatus for detecting an object using a differential image |
| CN104963360A (en) * | 2015-06-11 | 2015-10-07 | 芜湖鸣人热能设备有限公司 | Construction technology facilitating underground storage of cables |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2764482B2 (en) | 1998-06-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4496268A (en) | Method and apparatus for constructing reinforced concrete walls in the earth | |
| KR101045625B1 (en) | Construction method of retaining wall using cast-in-place pile | |
| JP2003147782A (en) | Foundation structure for constructing new building on existing basement and its construction method | |
| JP4485006B2 (en) | Construction method for underground structures | |
| KR200362565Y1 (en) | Earth Retaining Wall Structure Using Precast Concrete Pile and Construction Method Thereof | |
| KR101021913B1 (en) | A method for constructing cut-off temporary structure for sheathing work | |
| JPS5847823A (en) | Construction of in-place concrete pile | |
| JPH0510084A (en) | Execution method of deeper depth man hole | |
| JP2726621B2 (en) | Caisson laying method and caisson blade structure | |
| JP2874906B2 (en) | Shaft construction method | |
| JPS5936058B2 (en) | How to construct a structure using underground continuous walls | |
| KR100654973B1 (en) | Earth Retaining Wall Structure Using Precast Concrete Pile and Construction Method Thereof | |
| CN205557573U (en) | Underground structure | |
| JPS582294B2 (en) | Continuous basement wall construction method | |
| JPH02266015A (en) | Constructing underground continuous wall | |
| JP3728659B2 (en) | Basement extension method | |
| JP4146250B2 (en) | Open caisson bottom plate construction method | |
| JP2784314B2 (en) | How to set up an open caisson | |
| JPS60141919A (en) | Method of building continuous pillar-shaped landslide protection wall | |
| JP2565452B2 (en) | Construction method of self-supporting retaining wall | |
| JPS5869924A (en) | Construction of sheathing wall having upper part consisting of underground continuous wall and lower part of pillar-row pile | |
| JP2906003B2 (en) | Construction method of precast retaining wall | |
| JPS601451B2 (en) | Water stop mountain stop wall construction method using Benoto pile excavator | |
| JP3787536B2 (en) | Foundation construction method | |
| JPH10140557A (en) | Construction method of cast-in-place diaphragm wall with hollow |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |