JP2819901B2 - Construction method of barrier wall in soft ground - Google Patents
Construction method of barrier wall in soft groundInfo
- Publication number
- JP2819901B2 JP2819901B2 JP3321451A JP32145191A JP2819901B2 JP 2819901 B2 JP2819901 B2 JP 2819901B2 JP 3321451 A JP3321451 A JP 3321451A JP 32145191 A JP32145191 A JP 32145191A JP 2819901 B2 JP2819901 B2 JP 2819901B2
- Authority
- JP
- Japan
- Prior art keywords
- ground
- barrier wall
- forming
- water
- wall
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000004888 barrier function Effects 0.000 title claims description 31
- 238000010276 construction Methods 0.000 title description 10
- 239000000463 material Substances 0.000 claims description 51
- 229910000831 Steel Inorganic materials 0.000 claims description 30
- 239000010959 steel Substances 0.000 claims description 30
- 239000000835 fiber Substances 0.000 claims description 26
- 238000002347 injection Methods 0.000 claims description 16
- 239000007924 injection Substances 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 15
- 239000003792 electrolyte Substances 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 230000006872 improvement Effects 0.000 claims description 6
- 230000000903 blocking effect Effects 0.000 description 10
- 239000000499 gel Substances 0.000 description 9
- 239000006185 dispersion Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 239000002689 soil Substances 0.000 description 5
- 238000007596 consolidation process Methods 0.000 description 4
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 230000001050 lubricating effect Effects 0.000 description 3
- 230000008961 swelling Effects 0.000 description 3
- 229920002972 Acrylic fiber Polymers 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000003900 soil pollution Methods 0.000 description 2
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 229920000247 superabsorbent polymer Polymers 0.000 description 1
Landscapes
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、軟弱地盤の地盤改良区
域の周囲を囲う遮断壁の造成方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for forming a barrier wall surrounding a ground improvement area of soft ground.
【０００２】[0002]
【従来の技術】軟弱地盤の改良を行う改良工法の一つ
に、ペーパードレーン工法がある。この工法は、軟弱地
盤中にペーパードレーン材を打ち込むとともに、地表面
に盛土を施工して荷重をかけることにより、土中水分の
排水と圧密沈下とを促進し、地盤を改良する工法であ
る。2. Description of the Related Art One of the improved methods for improving soft ground is a paper drain method. In this method, a paper drain material is driven into soft ground, and an embankment is constructed on the ground surface to apply a load, thereby promoting drainage of soil moisture and consolidation settlement, thereby improving the ground.
【０００３】その際、改良区域の地盤の圧密沈下に伴
い、周囲地盤まで引き込まれて沈下を生ずることがある
ため、改良区域の周囲に沿って地盤内部に遮断壁を形成
することによって、周囲と縁切りした状態で前述の改良
施工を実施している。[0003] At this time, with the consolidation settlement of the ground in the improved area, the ground may be drawn into the surrounding ground and cause subsidence. Therefore, by forming a blocking wall inside the ground along the periphery of the improved area, the surrounding area is formed. The above-mentioned improvement work is being carried out with the border cut off.
【０００４】この遮断壁の造成は、通常、鋼矢板の打
設、あるいは深層混合土工法等によって行われる。しか
しながら、実際には以下に述べる問題があった。[0004] The formation of the blocking wall is usually performed by driving a steel sheet pile or a deep mixed earth method. However, there are actually the following problems.
【０００５】[0005]
【発明が解決しようとする課題】すなわち、鋼矢板の打
設による場合には、鋼矢板の打設時および引抜時に周囲
地盤を動かす恐れがあり、改良しようとする用地境界を
越えた近隣区域に何等かの地盤変動による悪影響を及ぼ
す可能性があるという問題点があった。また、遮断壁を
造成するための鋼矢板を多量に準備する必要があり不経
済である。That is, when a steel sheet pile is driven, the surrounding ground may be moved when the steel sheet pile is driven or pulled out. There was a problem that there was a possibility of adverse effects due to some ground deformation. Further, it is necessary to prepare a large number of steel sheet piles for forming the blocking wall, which is uneconomical.
【０００６】一方、深層混合土工法による場合には、施
工時の地盤変動は抑制できるものの、事前に地質に応じ
た改良効果確認試験を充分に行う必要があるとともに、
他の工法と比較して施工コストが高いという問題点があ
った。On the other hand, in the case of the deep mixed soil method, although the ground fluctuation at the time of construction can be suppressed, it is necessary to conduct a sufficient improvement effect confirmation test in advance according to the geology.
There was a problem that the construction cost was higher than other construction methods.
【０００７】本発明は以上の問題を解決するものであっ
て、その目的は、安価で安全性が高く簡易に施工できる
遮断壁を地盤中に設けることで、周囲地盤の引き込み沈
下を防止し得る軟弱地盤における遮断壁の造成方法を提
供することにある。SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to provide an inexpensive, safe, and easy-to-install blocking wall in the ground to prevent the sinking and sinking of the surrounding ground. An object of the present invention is to provide a method for forming a barrier wall in soft ground.
【０００８】[0008]
【課題を解決するための手段】かかる目的を達成するた
めに本発明は、軟弱地盤を圧密沈下させて改良を行う際
に周囲の地盤が引き込まれるのを防止するために造成さ
れる遮断壁の造成方法であって、軟弱地盤の改良区域の
周囲に沿って地盤中に水膨潤性繊維を水に分散させた注
入材を注入し、地盤中に遮断壁を造成することを特徴と
する。SUMMARY OF THE INVENTION In order to achieve the above object, the present invention relates to a method for improving a soft ground by consolidation settlement.
Built to prevent the surrounding ground from being pulled into
A method of forming a barrier wall, comprising: injecting an injection material in which water-swellable fibers are dispersed in water along the periphery of the improved area of the soft ground to form the barrier wall in the ground. And
【０００９】また、前記注入材を遮断壁造成用鋼材を介
して地盤中に注入することを特徴とする。Further, the injection material is injected into the ground through a steel material for forming a barrier wall.
【００１０】さらに、前記注入材には電解質を添加する
ことが望ましい。[0010] Further, it is desirable to add an electrolyte to the injection material.
【００１１】[0011]
【作用】以上の構成によれば、注入材としての水膨潤性
繊維の繊維分散液は、地盤中に打設された遮断壁造成用
鋼材が抜出された隙間および遮断壁造成用鋼材と地盤と
の間に入り込み、潤滑効果により遮断壁造成用鋼材引抜
時の摩擦力を低減するとともに、地盤内部に注入，残置
された水膨潤性繊維は膨潤ゲル化して地盤の流動を遮断
するため、遮断壁造成用鋼材と置き換えた後は遮断壁と
して機能する。According to the above construction, the fiber dispersion liquid of the water-swellable fiber as the injecting material is filled with the gap from which the barrier-wall-forming steel material poured into the ground is extracted and the barrier-wall-forming steel material and the ground. The lubricating effect reduces the frictional force when pulling out the steel material for building the barrier wall, while the water swellable fiber injected into the ground and the remaining water swells into a gel to block the flow of the ground. After replacing with steel for wall construction, it functions as a barrier.
【００１２】また、水膨潤性繊維の繊維分散液に添加す
る電解質の量を増減することで、前記水膨潤性繊維が膨
潤し始めるまでの時間、すなわち膨潤ゲルタイムを調整
することができる。この場合、電解質の濃度を増すほど
膨潤ゲルタイムは長くなる。Further, by increasing or decreasing the amount of the electrolyte to be added to the fiber dispersion of the water-swellable fiber, the time until the water-swellable fiber starts to swell, that is, the swelling gel time can be adjusted. In this case, the swelling gel time becomes longer as the concentration of the electrolyte increases.
【００１３】[0013]
【実施例】以下、本発明の一実施例を図面を用いて詳細
に説明する。図１（ａ）〜（ｃ）は、本発明の工程順序
を示すものである。まず、図１（ａ）に示すように、改
良区域の周囲に沿ってバイブローハンマーなどを用いて
数枚の遮断壁造成用鋼材１を隣接して連続的に打ち込
む。この遮断壁造成用鋼材１には、あらかじめパイプ５
が一体に取り付けられ、後述する引抜時にこのパイプ５
を通じて注入材４が注入される構成としている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below in detail with reference to the drawings. 1 (a) to 1 (c) show a process sequence of the present invention. First, as shown in FIG. 1 (a), several steel sheets 1 for forming a barrier wall are continuously and continuously driven along the periphery of the improved area using a vibrator hammer or the like. The steel material 1 for forming the barrier wall is provided with a pipe 5 in advance.
Are attached integrally, and this pipe 5
Through which the injection material 4 is injected.
【００１４】次に、最初に打設された遮断壁造成用鋼材
１を引抜きながら、遮断壁造成用鋼材１の下端に生じる
空隙にパイプ５を通じて注入材４を注入，充填する。引
抜かれた遮断壁造成用鋼材１は、最後に打設された遮断
壁造成用鋼材１の次に転用，打設される。この工程を反
復して施工することによって、連続遮断壁が造成され
る。そして、このように改良区域の地盤と周囲地盤とが
遮断壁８によって縁切りされた状態で、ペーパードレー
ン材２などが打設された改良区域の地盤の地表面に盛土
３を施工する。Next, an injection material 4 is injected and filled through a pipe 5 into a gap formed at a lower end of the steel material 1 for forming a barrier wall while the steel material 1 for forming a barrier wall which has been initially cast is pulled out. The drawn-out barrier-wall-forming steel material 1 is diverted and placed next to the last-placed barrier-wall-forming steel material 1. By repeating this process, a continuous blocking wall is created. Then, with the ground in the improved area and the surrounding ground cut off by the blocking wall 8, the embankment 3 is constructed on the ground surface of the ground in the improved area in which the paper drain material 2 and the like are cast.
【００１５】盛土３の施工完了後は、盛土３の荷重およ
び前記各ペーパードレーン材２の排水効果によって、図
１（ｃ）に示すように、地盤Ｅ1 は経時変化に応じて土
中水を排出しつつ圧密沈下する。このとき、周囲地盤Ｅ
までを引き込み沈下させようとするが、地盤Ｅ1 は遮断
壁８によって周囲地盤Ｅと縁切りされているので、周囲
地盤Ｅに変化はない。After the embankment 3 is completed, the ground E 1 is filled with soil water in accordance with the change with time, as shown in FIG. 1 (c), due to the load of the embankment 3 and the drainage effect of each paper drain material 2. Consolidation sinks while discharging. At this time, the surrounding ground E
However, since the ground E 1 is cut off from the surrounding ground E by the blocking wall 8, there is no change in the surrounding ground E.
【００１６】前記注入材４は、水膨潤性繊維を水に分散
させたものであり、例えば特公昭５８−１０５０８号公
報に開示されているが、アクリル繊維からなる芯部を構
成する内層と、その内層を囲うように配設されている高
吸水性で吸水後膨潤するように加工処理された外層とか
らなる二重構造の水膨潤性繊維などが採用される。この
水膨潤性繊維は、芯となるアクリル繊維の持つ繊維とし
ての機能と外層が持つ高吸水性ポリマーとしての機能と
の二つを併せ持つ複合機能素材であり、水に分散させる
ことにより潤滑性を生ずるとともに、ゲル化して膨潤す
る。また、土壌汚染の原因となる残留成分は含まれてお
らず、生物に対しても安全である。The injectable material 4 is obtained by dispersing water-swellable fibers in water. For example, as disclosed in Japanese Patent Publication No. 58-10508, an inner layer constituting a core made of acrylic fibers is provided. For example, a water-swellable fiber having a double structure comprising an outer layer which is disposed so as to surround the inner layer and is processed so as to swell after absorbing water with high water absorbency is employed. This water-swellable fiber is a composite functional material that has both the function of the core acrylic fiber as a fiber and the function of the outer layer as a superabsorbent polymer. As it occurs, it gels and swells. In addition, it does not contain residual components that cause soil pollution and is safe for living organisms.
【００１７】注入用のパイプ５は、前述のように、あら
かじめ前記遮断壁造成用鋼材１の側面に一体に取り付け
られており、このパイプ５と遮断壁造成用鋼材１の引抜
時に設置される貯留タンク６との間を送液用ポンプ７を
介して接続し、この送液用ポンプ７の駆動により貯留タ
ンク６の内部に貯えられた注入材４を、遮断壁造成用鋼
材１が引抜かれた後の下部空間ｄに圧送する。As described above, the pipe 5 for injection is integrally attached to the side surface of the steel material 1 for forming the barrier wall in advance, and the storage pipe installed when the pipe 5 and the steel material 1 for forming the barrier wall are pulled out. The tank 6 was connected via a liquid-feeding pump 7, and the injection-material 4 stored inside the storage tank 6 was pulled out of the injection material 4 stored in the storage tank 6 by driving the liquid-feeding pump 7. The pressure is fed to the lower space d.
【００１８】これにより、注入材４は遮断壁造成用鋼材
１が引抜かれた隙間、すなわち前記下部空間ｄおよび遮
断壁造成用鋼材１と地盤Ｅ，Ｅ1 との間に入り込み、潤
滑効果により遮断壁造成用鋼材１引抜時の摩擦力を低減
するため、引抜きに大きな動力を要することがない。[0018] Thus, the injection material 4 is cut off the wall Construction steel material 1 was withdrawn clearance, i.e. the lower space d and the blocking wall Construction steel material 1 and the ground E, enters between the E 1, blocked by the lubricating effect Since the frictional force at the time of drawing out the steel material for wall formation 1 is reduced, a large power is not required for drawing.
【００１９】遮断壁造成用鋼材１と置き換えられた注入
材４は、その含有する水膨潤性繊維が膨潤ゲル化して地
盤の流動を遮断し、図１（ｃ）に示すように、水膨潤性
繊維の繊維分散液が膨潤ゲル化した層からなる遮断壁８
を形成する。前記のように、水膨潤性繊維は芯部を構成
する内層を有しているので、この芯部同士が互いに絡み
合って強固に連結し、膨潤ゲル化した層、すなわち遮断
壁８は、地盤Ｅ，Ｅ1 中に散逸したり、破断したりする
ことがない。The water-swellable fiber contained in the filler material 4 replaced with the barrier-wall-forming steel material 1 swells and gels to block the flow of the ground, and as shown in FIG. A barrier wall 8 composed of a layer in which a fiber dispersion of fibers is swollen and gelled.
To form As described above, since the water-swellable fiber has the inner layer constituting the core, the cores are entangled with each other and firmly connected to each other, and the swelled and gelled layer, that is, the barrier wall 8 is formed by the ground E. , or dissipated in E 1, there is no or to break.
【００２０】なお、ゲルタイムを調整するための電解質
としては、ＫＯＨ，ＮａＯＨ，ＮａＣｌ，Ｎａ2 ＳＯ4
などがあり、これらのうち最も入手が容易で安価で安全
な素材を添加すればよい。この電解質の機能としては、
電解質の存在下では水膨潤性繊維の吸水機能が抑制され
て膨潤せず、土中に注入され、土中水分と接触すること
で電解質が消失して膨潤ゲル化するので、流動性，注入
量，注入範囲などを勘案してその添加量を定めればよ
い。The electrolyte for adjusting the gel time includes KOH, NaOH, NaCl, Na 2 SO 4
Among them, the most easily available, inexpensive and safe material may be added. The function of this electrolyte is
In the presence of the electrolyte, the water-swellable fiber does not swell due to its reduced water-absorbing function, and is injected into the soil. When it comes into contact with the soil moisture, the electrolyte disappears and swells into a gel. The addition amount may be determined in consideration of the injection range and the like.
【００２１】[0021]
【発明の効果】以上実施例によって詳細に説明したよう
に、本発明に係る軟弱地盤における遮断壁の造成方法に
よれば、次の優れた効果を発揮する。As described in detail in the above embodiments, the following excellent effects are exhibited by the method for forming a barrier wall in soft ground according to the present invention.
【００２２】（１）注入材としての水膨潤性繊維の繊維
分散液が安価であり、また遮断壁造成用鋼材の引抜時に
これに設けたパイプを通じて前記注入材を地盤中に注入
するだけなので、施工も簡単で施工コストを低減でき
る。(1) Since the fiber dispersion of the water-swellable fiber as an injection material is inexpensive, and the injection material is simply injected into the ground through a pipe provided at the time of drawing out the steel material for forming the barrier wall. Construction is simple and construction costs can be reduced.
【００２３】（２）注入材が、遮断壁造成用鋼材が引抜
かれた隙間および遮断壁造成用鋼材と地盤との間に入り
込み、潤滑効果により遮断壁造成用鋼材引抜時の摩擦力
を低減するため、遮断壁造成用鋼材を容易に引抜くこと
ができる。(2) The injected material enters the gap from which the steel material for forming the barrier wall has been pulled out and between the steel material for building the barrier wall and the ground, and reduces the frictional force when the steel material for building the barrier wall is pulled out by the lubrication effect. Therefore, the steel material for forming the barrier wall can be easily pulled out.
【００２４】（３）遮断壁造成用鋼材と置き換えられた
注入材は、その含有する水膨潤性繊維が膨潤ゲル化して
地盤の流動を遮断するため、遮断壁として機能し、しか
も無害であり、土壌汚染等の環境に与える影響もほとん
どない。また、膨潤ゲル化した水膨潤性繊維は、芯部を
構成する内層を有しているので、この芯部同士が互いに
絡み合って強固に連結し、造成された膨潤ゲル化層によ
る遮断壁が地盤中に散逸したり、破断したりするの防止
するとともに、水膨潤性繊維の外層による潤滑作用によ
って、地盤改良区域と周囲の地盤との遮断が容易にな
る。(3) Since the water-swellable fiber contained in the injected material replaced with the steel material for forming the barrier wall swells and gels to block the flow of the ground, it functions as a barrier wall and is harmless. There is almost no impact on the environment such as soil pollution. In addition, the swellable gelled water-swellable fiber has a core portion
Since the cores have the constituent inner layers,
The swelled gel layer formed by entanglement and strong connection
Barriers that escape or break into the ground
And the lubricating action of the outer layer of water-swellable fibers
This makes it easier to block the ground improvement area from surrounding ground.
You .
【００２５】（４）水膨潤性繊維の繊維分散液に添加す
る電解質の量を増減することで、前記水膨潤性繊維が膨
潤し始めるまでの時間を調整することができるため、流
動性や注入量，注入範囲などを勘案して、水膨潤性繊維
分散液による遮断壁の造成を行うことができる。(4) The time required for the water-swellable fibers to start swelling can be adjusted by increasing or decreasing the amount of the electrolyte added to the fiber dispersion of the water-swellable fibers. In consideration of the amount, the injection range, and the like, the barrier wall can be formed with the water-swellable fiber dispersion.
【図１】（ａ）は地盤改良の施工完了状態を示す断面
図、（ｂ）は遮断壁造成用鋼材の引抜きと注入材の注入
を行っている状態の断面図、（ｃ）は新たな遮断壁が造
成された状態を示す断面図である。FIG. 1A is a cross-sectional view showing a completed state of ground improvement work, FIG. 1B is a cross-sectional view showing a state in which a steel material for forming a barrier wall is being extracted and an injection material is being injected, and FIG. It is sectional drawing which shows the state in which the blocking wall was formed.
Ｅ 周囲地盤 Ｅ1 改良区域の地盤 １ 遮断壁造成用鋼材 ２ ペーパードレーン材 ３ 盛土 ４ 注入材 ５ パイプ ８ 遮断壁（注入材４による）E Surrounding ground E 1 Ground in the improved area 1 Steel material for forming barrier wall 2 Paper drain material 3 Filling 4 Filling material 5 Pipe 8 Blocking wall (by filling material 4)
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平１−142119（ＪＰ，Ａ) 特開 平３−244711（ＪＰ，Ａ) 特公 昭58−10508（ＪＰ，Ｂ２) 増田房義著 「高分子新素材ＯｎｅＰ ｏｉｎｔ４ 高吸収性ポリマー」 第１ 版，共立出版，昭和62年11月15日発行, Ｐ．22−23 (58)調査した分野(Int.Cl.6，ＤＢ名) E02D 3/12 E02D 19/16────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-1-142119 (JP, A) JP-A-3-244711 (JP, A) JP-B-58-10508 (JP, B2) Fusayoshi Masuda “ New Polymer OnePoint 4 High Absorbent Polymer, 1st Edition, Kyoritsu Shuppan, published November 15, 1987, 22-23 (58) Field surveyed (Int. Cl. 6 , DB name) E02D 3/12 E02D 19/16
Claims (3)
際に周囲の地盤が引き込まれるのを防止するために造成
される遮断壁の造成方法であって、軟弱地盤の改良区域
の周囲に沿って地盤中に水膨潤性繊維を水に分散させた
注入材を注入し、地盤中に遮断壁を造成することを特徴
とする軟弱地盤における遮断壁の造成方法。(1) Improvement is performed by consolidating soft ground.
In order to prevent the surrounding ground from being pulled in
Forming a barrier in the ground by injecting an injection material in which water-swellable fibers are dispersed in water along the periphery of the improved area of the soft ground. Characteristic method of creating a barrier in soft ground.
地盤中に注入することを特徴とする請求項１に記載の軟
弱地盤における遮断壁の造成方法。2. The method according to claim 1, wherein the injection material is injected into the ground through a steel material for forming a barrier wall.
徴とする請求項１または２に記載の軟弱地盤における遮
断壁の造成方法。3. The method according to claim 1, wherein an electrolyte is added to the injection material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3321451A JP2819901B2 (en) | 1991-11-11 | 1991-11-11 | Construction method of barrier wall in soft ground |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3321451A JP2819901B2 (en) | 1991-11-11 | 1991-11-11 | Construction method of barrier wall in soft ground |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05132924A JPH05132924A (en) | 1993-05-28 |
| JP2819901B2 true JP2819901B2 (en) | 1998-11-05 |
Family
ID=18132710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3321451A Expired - Fee Related JP2819901B2 (en) | 1991-11-11 | 1991-11-11 | Construction method of barrier wall in soft ground |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2819901B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6141660B2 (en) * | 2012-03-22 | 2017-06-07 | 学校法人早稲田大学 | Mountain wall construction method and mountain wall constructed by this mountain wall construction method |
| JP6361045B2 (en) * | 2014-01-29 | 2018-07-25 | 大地 山下 | Removal method of earth retaining members |
| JP7674847B2 (en) * | 2021-02-02 | 2025-05-12 | 株式会社竹中工務店 | Construction Method |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ZA824754B (en) * | 1981-07-04 | 1984-02-29 | Sandoz Ltd | Organic compounds |
| JPH0739656B2 (en) * | 1990-02-23 | 1995-05-01 | 株式会社大林組 | Method of preventing ground subsidence by pulling out soil retaining members |
-
1991
- 1991-11-11 JP JP3321451A patent/JP2819901B2/en not_active Expired - Fee Related
Non-Patent Citations (1)
| Title |
|---|
| 増田房義著 「高分子新素材ＯｎｅＰｏｉｎｔ４ 高吸収性ポリマー」 第１版，共立出版，昭和６２年１１月１５日発行，Ｐ．２２−２３ |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH05132924A (en) | 1993-05-28 |
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