JPH02120421A - Floating prevention method for underground construction - Google Patents
Floating prevention method for underground constructionInfo
- Publication number
- JPH02120421A JPH02120421A JP63269403A JP26940388A JPH02120421A JP H02120421 A JPH02120421 A JP H02120421A JP 63269403 A JP63269403 A JP 63269403A JP 26940388 A JP26940388 A JP 26940388A JP H02120421 A JPH02120421 A JP H02120421A
- Authority
- JP
- Japan
- Prior art keywords
- construction
- ground
- openings
- underground
- tunnel
- 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
- 238000000034 method Methods 0.000 title claims abstract description 10
- 238000010276 construction Methods 0.000 title abstract description 25
- 230000002265 prevention Effects 0.000 title 1
- 238000003780 insertion Methods 0.000 claims abstract description 5
- 230000037431 insertion Effects 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 abstract description 5
- 238000012856 packing Methods 0.000 abstract description 5
- 239000000126 substance Substances 0.000 abstract description 4
- 239000004568 cement Substances 0.000 abstract description 2
- 239000003673 groundwater Substances 0.000 abstract description 2
- 239000008267 milk Substances 0.000 abstract description 2
- 210000004080 milk Anatomy 0.000 abstract description 2
- 235000013336 milk Nutrition 0.000 abstract description 2
- 239000004570 mortar (masonry) Substances 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000012966 insertion method Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Landscapes
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
- Lining And Supports For Tunnels (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
Description
【発明の詳細な説明】
〈産業上の利用分野〉
本発明はトンネル、地下発電所、マンホール、地下室あ
るいは上面開放の水路など、その底面が地中に位置する
地中構造物ｔいて、その浮き上がりを防止するための工
法に関するものである。[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to underground structures whose bottom surfaces are underground, such as tunnels, underground power plants, manholes, basements, or open-top waterways, and to the lifting of underground structures. This relates to construction methods to prevent this.
〈従来の技術〉
く本発明が解決しようとする問題点〉
上記のような従来の方法では、本来の構造物が必要とす
る重量や土被りよりも大きな構造としなければならず、
数倍の費用と工事期間を必要とする。<Prior art> Problems to be solved by the present invention> In the conventional methods as described above, the structure must be larger than the weight and earth cover required by the original structure,
It would require several times the cost and construction period.
設置位置を変更するような方法ではさらに大幅な費用の
増加となる。A method that requires changing the installation location will result in a further significant increase in cost.
’［０注入工法のような補助工法では本工事に先立って
長期の工事期間が必要となる。Auxiliary construction methods such as zero injection construction require a long construction period prior to the main construction.
〈本発明の目的〉
本発明は上記したような問題を改善するためになされた
もので、簡易な工事で安価に施工することのできる、地
中構造物の浮き上がり防止工法を提供することを目的と
する。<Objective of the present invention> The present invention was made in order to improve the above-mentioned problems, and it is an object of the present invention to provide a construction method for preventing uplifting of underground structures, which can be constructed easily and at low cost. shall be.
〈問題点を解決する手段〉
すなわち本発明は地下構造物の周囲の地盤に、多数の棒
状体を圧入して地盤を改良し、その上でさらに、構造物
の浮き上がりに対する抵抗力を増加させる方法である。<Means for solving the problem> In other words, the present invention is a method of improving the ground by press-fitting a large number of rod-like bodies into the ground around an underground structure, and further increasing the resistance against uplift of the structure. It is.
〈本発明の構成〉
次に本発明の実施例をトンネルについて説明するが、他
の地下構造物においても同様の作業を行うことができる
。<Configuration of the Present Invention> Next, an embodiment of the present invention will be described with respect to a tunnel, but similar operations can be performed in other underground structures as well.
くイ〉トンネル側面への開孔
トンネル１の壁面や、床面（中央ではなく壁面寄りの位
置）に、トンネル１の軸方向にならべて多数の開孔を行
う。(b) Opening holes on the side of the tunnel A large number of holes are made on the wall and floor of the tunnel 1 (at positions closer to the wall than in the center) in the axial direction of the tunnel 1.
ただしシールド工法の場合にはセグメント２の中で特に
床の壁面側に位置するセグメント２には事前に開孔部３
を開設してお（こともできる。However, in the case of the shield construction method, the segment 2 that is located on the wall side of the floor has holes 3 in advance.
You can also open a
（第２図）
その場合には開孔部３には破壊の容易で柔軟なパツキン
材を充填しておき、地下水の外部からの流入を阻止する
。(Fig. 2) In that case, the opening 3 is filled with a flexible and easy-to-break packing material to prevent underground water from flowing in from the outside.
〈口〉棒状体の挿入
多数の開孔部３から外側の地盤に向けて棒状体４を挿入
する。<Opening> Inserting the rod-shaped body Insert the rod-shaped body 4 from the multiple openings 3 toward the ground outside.
棒状体４の長さが不足する場合には途中で接続して延長
するなどして所定の長さを確保する。If the length of the rod-shaped body 4 is insufficient, the predetermined length is secured by connecting it midway and extending it.
挿入方法は打撃、油圧、その他公知の方法によって行う
。The insertion method is performed by impact, hydraulic pressure, or other known methods.
挿入後の開孔部３にはモルタルなどを充填して地下水の
流入を阻止する。After insertion, the opening 3 is filled with mortar or the like to prevent groundwater from flowing in.
〈ハ〉挿入方向
棒状体４の挿入方向は、浮き上がりに対する抵抗を得る
場合には、垂直以外の角度で他山に挿入する。<C> Insertion direction The rod-shaped body 4 is inserted into the other thread at an angle other than vertically when obtaining resistance against lifting.
すなわち第４図に示すように水平方向あるいは斜め下方
に約４５度の方向までの挿入を行う。That is, as shown in FIG. 4, the insertion is performed horizontally or diagonally downward up to about 45 degrees.
しかし構造物の下の地盤を改良することも同時に目的と
する場合には、垂直下向き方向に挿入することにも意義
がある。However, if the purpose is also to improve the ground under the structure, it is also meaningful to insert it vertically downward.
く二〉シールド工法の場合
シールド工法の場合にはセグメント２開孔部３のパツキ
ン材を貫通して棒状体４を挿入し、その後にセメントミ
ルクなどでパツキン材の補強を行って止水の効果を向上
させる。2) In the case of the shield method In the case of the shield method, the rod-shaped body 4 is inserted through the packing material of the segment 2 opening 3, and then the packing material is reinforced with cement milk etc. to achieve a water stop effect. improve.
〈ホ〉その他の地中構造物
トンネル１以外の地下発電所、地下室、あるいは上面開
放の水路、その他の地中構造物においても同様の方法を
採用することができる。<E> Other underground structures The same method can be adopted for underground power plants other than the tunnel 1, basements, waterways with open tops, and other underground structures.
さらに状況によっては上向きに棒状体を打ち込むことで
効果を向上させることもできる。Furthermore, depending on the situation, the effect can be improved by driving the rod upward.
〈本発明の作用〉
トンネルなどの地中構造物の内部から多数の棒状体４を
地盤内に挿入した場合には第１図に示すように「むかで
」状に多数の足（棒状体４群）が地盤に打ち込まれるこ
とになる。<Operation of the present invention> When a large number of rod-shaped bodies 4 are inserted into the ground from inside an underground structure such as a tunnel, a large number of legs (four groups of rod-shaped bodies ) will be driven into the ground.
この多数の足がトンネル１などの地中構造物の浮き上が
りの抵抗として作用するものである。This large number of legs acts as resistance to uplift of underground structures such as the tunnel 1.
〈本発明の効果〉
本発明は上記したようになるから次のような効果を期待
することができる。<Effects of the Present Invention> Since the present invention is as described above, the following effects can be expected.
〈イン施工をすべて地中構造物の内部から行うことがで
きる。<All construction work can be performed from inside the underground structure.
したがって安価な工費で、短い工事期間で作業を完成さ
せることができる。Therefore, the work can be completed at low cost and in a short construction period.
〈口〉地盤の状態や構造物の重量、寸法によって作用す
る浮力は相違する。<Exposure> The buoyant force that acts on a structure differs depending on the condition of the ground and the weight and dimensions of the structure.
しかし本工法ならば棒状体の本数、長さ、方向等を選択
することによって容易に必要とする抵抗を得ることがで
きる。However, with this construction method, the required resistance can be easily obtained by selecting the number, length, direction, etc. of the rod-shaped bodies.
したがって幅広い範囲の土質に対応することができる。Therefore, it can be applied to a wide range of soil types.
〈ハ〉浮き上がりに対する抵抗だけではなく、多数の棒
状体を挿入することによって地盤そのものを改善して強
化することができる。<C> In addition to improving resistance to uplift, the ground itself can be improved and strengthened by inserting a large number of rod-shaped bodies.
したがって地震時にも構造物を安定した状態に維持する
ことができる。Therefore, the structure can be maintained in a stable state even during an earthquake.
〈二〉どこへ流出するか不明な薬液の注入や範囲の限定
しに（い凍結工法などと相違して、補強する範囲、抵抗
を増強させる範囲が明確である。(2) Unlike the freezing method, which involves injecting a chemical solution where it is unclear where it will flow or limiting the area, the area to be reinforced and the area to increase resistance is clear.
したがって無駄な工事をすることがなく、必要な範囲の
みに限定して所定の目的を達成することができる。Therefore, it is possible to achieve a predetermined purpose by limiting the work to a necessary range without carrying out unnecessary construction work.
第１図：本発明の工法の施工後の説明間第２閃二本発明
の工法を施工する場合のセグメトの一実施例の説明図
第３図：施工状態の説明図
第４図：施工例の説明図
ン
第２
２七り゛メ基Figure 1: Explanation after construction of the construction method of the present invention 2nd scene 2 An explanatory diagram of an example of segmentation when constructing the construction method of the present invention Figure 3: An explanatory diagram of the construction state Figure 4: Example of construction Explanatory diagram No. 2 27 Rime group
Claims (1)
山に挿入し、 挿入領域の地山の強度を全体として増加させるとともに
、 浮き上がりに対する抵抗を増加させて行う、地中構造物
の浮き上がり防止工法(1) An underground structure in which a large number of rod-shaped bodies are inserted into the surrounding ground from inside the underground structure, increasing the overall strength of the ground in the insertion area and increasing its resistance to uplift. Method to prevent objects from floating up
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63269403A JP2619704B2 (en) | 1988-10-27 | 1988-10-27 | Underground structure lifting prevention method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63269403A JP2619704B2 (en) | 1988-10-27 | 1988-10-27 | Underground structure lifting prevention method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02120421A true JPH02120421A (en) | 1990-05-08 |
| JP2619704B2 JP2619704B2 (en) | 1997-06-11 |
Family
ID=17471928
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63269403A Expired - Lifetime JP2619704B2 (en) | 1988-10-27 | 1988-10-27 | Underground structure lifting prevention method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2619704B2 (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0790876A (en) * | 1993-09-27 | 1995-04-04 | Hokukon:Kk | Preventive construction method for upward parting of underground buried receptacle caused by underground water |
| JP2007197989A (en) * | 2006-01-26 | 2007-08-09 | Tokyo Metropolitan Sewerage Service Corp | Structure for preventing lift of manhole |
| JP2012149394A (en) * | 2011-01-17 | 2012-08-09 | Ohbayashi Corp | Shield tunnel |
| CN102776899A (en) * | 2012-07-05 | 2012-11-14 | 上海市城市建设设计研究总院 | Anti-floating structure of shallow-buried shield tunnel |
| JP2013164103A (en) * | 2012-02-09 | 2013-08-22 | Sekisui Chem Co Ltd | Embedded pipe structure and method for constructing embedded pipe structure |
| CN108532634A (en) * | 2018-06-05 | 2018-09-14 | 南京吉欧地下空间科技有限公司 | A kind of support anti-floating system of pipe gallery |
| CN111042843A (en) * | 2019-12-16 | 2020-04-21 | 中铁十四局集团大盾构工程有限公司 | Pre-anchoring method for underground excavated tunnel |
| CN111101964A (en) * | 2019-11-18 | 2020-05-05 | 中铁隧道集团二处有限公司 | Construction method for blocking receiving tunnel portal by shield method |
| CN112343623A (en) * | 2020-11-02 | 2021-02-09 | 中交二航局成都城市建设工程有限公司 | Tunnel segment anti-floating structure and method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5124020A (en) * | 1974-08-21 | 1976-02-26 | Nippon Steel Corp | |
| JPS59219589A (en) * | 1983-05-27 | 1984-12-10 | 日本鋼管株式会社 | Method of ground liquefaction countermeasure construction ofburied duct |
-
1988
- 1988-10-27 JP JP63269403A patent/JP2619704B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5124020A (en) * | 1974-08-21 | 1976-02-26 | Nippon Steel Corp | |
| JPS59219589A (en) * | 1983-05-27 | 1984-12-10 | 日本鋼管株式会社 | Method of ground liquefaction countermeasure construction ofburied duct |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0790876A (en) * | 1993-09-27 | 1995-04-04 | Hokukon:Kk | Preventive construction method for upward parting of underground buried receptacle caused by underground water |
| JP2007197989A (en) * | 2006-01-26 | 2007-08-09 | Tokyo Metropolitan Sewerage Service Corp | Structure for preventing lift of manhole |
| JP2012149394A (en) * | 2011-01-17 | 2012-08-09 | Ohbayashi Corp | Shield tunnel |
| JP2013164103A (en) * | 2012-02-09 | 2013-08-22 | Sekisui Chem Co Ltd | Embedded pipe structure and method for constructing embedded pipe structure |
| CN102776899A (en) * | 2012-07-05 | 2012-11-14 | 上海市城市建设设计研究总院 | Anti-floating structure of shallow-buried shield tunnel |
| CN108532634A (en) * | 2018-06-05 | 2018-09-14 | 南京吉欧地下空间科技有限公司 | A kind of support anti-floating system of pipe gallery |
| CN108532634B (en) * | 2018-06-05 | 2024-04-02 | 南京吉欧地下空间科技有限公司 | Supporting anti-floating device of comprehensive pipe rack |
| CN111101964A (en) * | 2019-11-18 | 2020-05-05 | 中铁隧道集团二处有限公司 | Construction method for blocking receiving tunnel portal by shield method |
| CN111101964B (en) * | 2019-11-18 | 2021-12-21 | 中铁隧道集团二处有限公司 | Construction method for blocking receiving tunnel portal by shield method |
| CN111042843A (en) * | 2019-12-16 | 2020-04-21 | 中铁十四局集团大盾构工程有限公司 | Pre-anchoring method for underground excavated tunnel |
| CN112343623A (en) * | 2020-11-02 | 2021-02-09 | 中交二航局成都城市建设工程有限公司 | Tunnel segment anti-floating structure and method |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2619704B2 (en) | 1997-06-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109853538B (en) | Concrete cast-in-place pile foundation reinforcing and reinforcing structure and construction method thereof | |
| JPH02120421A (en) | Floating prevention method for underground construction | |
| CN105908696A (en) | Foundation pit frozen soil retaining wall device and freezing method thereof | |
| CN109024562A (en) | A kind of long prefabricated tubular pile of major diameter and its construction method of classification propulsion | |
| CN105756065A (en) | While-drilling casing pile side sectional high-pressure grouting system and method | |
| CN105155578B (en) | Complicated geological and environment access subway existing support system construction method | |
| US4126001A (en) | Method for constructing a soil structure | |
| US4231683A (en) | Process and a device for making anchorages in soils and rocks | |
| JPH05132923A (en) | Improving method for soft ground | |
| GB1017117A (en) | Improvements in or relating to the construction of and the preparation of the foundations of structures such as tanks and silos | |
| CN204780965U (en) | Complicated geology and existing system construction structures that struts of environment access subway | |
| CN106284310B (en) | Stake holes, which is drawn water, in the case of a kind of big flow water drains envelope pile construction method | |
| JP2683814B2 (en) | Reinforcement method of soft ground around the front face of shield tunnel | |
| JPS6183711A (en) | Method of preventing liquefaction of ground | |
| RU204490U1 (en) | DRILLING PIL | |
| CN219080292U (en) | Reinforcement cage for long cast-in-place piles | |
| JP2019108677A (en) | Drain pile and liquefaction countermeasures method | |
| CN208251137U (en) | It is a kind of for communicating the screw anchor composite foundation of shaft tower | |
| JPH11200337A (en) | Wave absorbing dike structure and construction method thereof | |
| CN212270905U (en) | All-steel enclosure structure with locking device | |
| CN206667424U (en) | Rain pipe buries structure | |
| CN206667262U (en) | maintaining pile | |
| JPH02147719A (en) | Sheathing construction method | |
| JPS59122629A (en) | Construction of prefabricated underground structure | |
| CN112663620A (en) | A campshed cantilever structure for excavation supporting |