JPH0336312A - Foundation improving device having bypass pipe or t pipe with built-in steel ball - Google Patents
Foundation improving device having bypass pipe or t pipe with built-in steel ballInfo
- Publication number
- JPH0336312A JPH0336312A JP17163589A JP17163589A JPH0336312A JP H0336312 A JPH0336312 A JP H0336312A JP 17163589 A JP17163589 A JP 17163589A JP 17163589 A JP17163589 A JP 17163589A JP H0336312 A JPH0336312 A JP H0336312A
- Authority
- JP
- Japan
- Prior art keywords
- rod
- pipe
- steel ball
- injection
- pressure
- 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
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 20
- 239000010959 steel Substances 0.000 title claims abstract description 20
- 238000002347 injection Methods 0.000 claims abstract description 35
- 239000007924 injection Substances 0.000 claims abstract description 35
- 239000002002 slurry Substances 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 abstract description 21
- 238000000034 method Methods 0.000 description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000005086 pumping Methods 0.000 description 3
- 238000005553 drilling Methods 0.000 description 2
- 239000004568 cement Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000008267 milk Substances 0.000 description 1
- 210000004080 milk Anatomy 0.000 description 1
- 235000013336 milk Nutrition 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
Description
【発明の詳細な説明】
［゛産業上の利用分野］
本発明は地中に硬化材を注入する地盤改良工法において
ボーリングロッド先端に用いる制御弁及びそれを用いる
方法に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a control valve used at the tip of a boring rod in a ground improvement method of injecting hardening material into the ground, and a method of using the control valve.
［従来の技術］
従来、地中に薬液を注入する地盤改良工法には、ポーリ
ングマシーンによりロッドを所定の深さまで挿入し、ス
イベルを介して硬化材を圧送し、地盤中に噴射注入しな
がらロッドを回転上昇するロンド注入法がある。この注
入法においては、ボーリングロッドを所定の深度まで挿
入する際には、ロッド先端に設けられた掘削刃により掘
削しつつ下方噴射孔から水を噴出させることによりロッ
ドの挿入空間を確保し、所定深度に達した時に一旦噴出
を中断し、スイベルを取り外した後ロッド上端から鋼球
な入れて落下させることにより該下方噴射孔を塞がしめ
、その後、ロッドを回転上昇させながら、高圧にて硬化
材を圧送し、ロッド先端の測方噴射孔から硬化材を噴出
させることにより地盤中に注入す′る方法が行われてい
る。[Conventional technology] Conventionally, in the ground improvement method of injecting a chemical into the ground, a rod is inserted to a predetermined depth using a polling machine, hardening material is force-fed through a swivel, and the rod is injected into the ground while being injected into the ground. There is a rondo injection method that rotates and rises. In this injection method, when inserting a boring rod to a predetermined depth, water is ejected from the lower injection hole while drilling with a drilling blade provided at the tip of the rod to secure the insertion space for the rod. When the depth is reached, the injection is temporarily interrupted, and after removing the swivel, a steel ball is inserted from the upper end of the rod and dropped to block the lower injection hole.Then, while the rod is rotated upward, it is hardened under high pressure. The method used is to pump the material and inject it into the ground by jetting the hardening material from a square injection hole at the tip of the rod.
［発明が解決しようとする課題〕
如上の工程においては、ポーリング工程から硬化材注入
工程に移行する際のスイベル取り外し及び組立作業が不
可欠であるが、この作業が工程全体の中断をもたらすの
みならず、それ自体煩雑であり、また使用するロッドの
長さが所望深度に比して長い場合には、足場を要する高
所の作業となるという欠点を有する。[Problem to be solved by the invention] In the above process, it is essential to remove and assemble the swivel when transitioning from the poling process to the hardening material injection process, but this work not only interrupts the entire process but also causes problems. However, this process is complicated in itself, and if the length of the rod used is longer than the desired depth, it has the disadvantage of requiring scaffolding.
本発明は、該作業を簡略化すると共に、足場を必要とせ
ず、地面上においてより安全確実に行うことを目的とす
る。The object of the present invention is to simplify this work, and to perform it more safely and reliably on the ground without requiring scaffolding.
【課題を解決するための手段］
本発明は５下方噴射孔と側方噴射孔とを下端部に有する
ロッド本体を回転上下動機構に連繋させると共に、ロッ
ド上端はスイベル及び圧送ホースを介して高圧スラリー
ポンプに接続してなる地盤改良装置において、鋼球を内
蔵するバイパス管を着脱機構を介して圧送ホースの途中
に並列に接続し、該着脱機構の両側には、圧送ホース側
とバイパス管側のそれぞれにバルブを設けること、また
は、同様の装置において水平方向に固定された管とその
中間に接続され鉛直上方に伸びる枝管とから成るＴ字管
を着脱機構を介して圧送ホースの途中に直列に接続し、
該水平管には圧力計を設け、該鉛直管にはバルブを２個
設けるとともに、該２１＆ｌのバルブの間に鋼球を内蔵
することを特徴とする地盤改良装置を提供するものであ
る。[Means for Solving the Problems] The present invention connects a rod body having five lower injection holes and a side injection hole at the lower end to a rotating vertical movement mechanism, and connects the upper end of the rod to a high pressure via a swivel and a pressure hose. In a ground improvement device connected to a slurry pump, a bypass pipe containing a steel ball is connected in parallel to the middle of a pressure hose via a detachable mechanism, and a pressure hose side and a bypass pipe side are connected on both sides of the detachable mechanism. In a similar device, a T-shaped pipe consisting of a horizontally fixed pipe and a branch pipe connected in the middle and extending vertically upward can be installed in the middle of the pressure hose through an attachment/detachment mechanism. connect in series,
The present invention provides a ground improvement device characterized in that the horizontal pipe is provided with a pressure gauge, the vertical pipe is provided with two valves, and a steel ball is built in between the 21&l valves.
［作用］
本発明は、以上の如く構成されているので、その使用に
あっては、ボーリングロッドが所定の深度に到達した際
に、バルブの開閉操作によりバイパス管またはＴ字管内
の鋼球を硬化材とともに圧送せしめ、ロッド先端まで移
送し下方噴射孔な圧送圧力により塞ぎ、硬化材を側方噴
射孔からのみ噴出させつつ５０ツトを回転上昇させて施
工することとなる。[Function] Since the present invention is configured as described above, in its use, when the boring rod reaches a predetermined depth, the steel ball in the bypass pipe or T-shaped pipe is removed by opening and closing the valve. The hardening material is pumped together with the hardening material, transferred to the tip of the rod, and the lower injection hole is closed by pressure, and the hardening material is spouted only from the side injection holes while the rod is rotated upward for construction.
［実施例］
以下、図を追って実施例を説明する。第１図の如く注入
ロッド１０は、回転上下動機構１１により、上下動操作
及び回転操作がなされるべく連繋されている。注入ロッ
ド１０の下部先端には、第２図の如く、測方噴射孔１７
及び下方噴射孔１６が設けられている。[Example] Examples will be described below with reference to the drawings. As shown in FIG. 1, the injection rod 10 is connected to a rotating vertical movement mechanism 11 so that it can be vertically moved and rotated. At the lower tip of the injection rod 10, there is a square injection hole 17 as shown in FIG.
and a lower injection hole 16 are provided.
注入ロッドｌＯの上部先端は、スイベル１２及び圧送ホ
ース１３を介して高圧スラリーポンプ１５に接続されて
いる。The upper tip of the injection rod IO is connected to a high-pressure slurry pump 15 via a swivel 12 and a pressure hose 13.
ロッドを地盤中に挿入する際には、水を送りながら掘削
しつつロッドを挿入するが、水はロッド先端の下方噴射
孔１６及び側方噴射孔１７の双方から噴出される。When inserting the rod into the ground, the rod is inserted while excavating while sending water, and water is ejected from both the lower injection hole 16 and the side injection hole 17 at the tip of the rod.
圧送中−ス１３の途中には、鋼球１８を内蔵するバイパ
ス管１４が着脱機構２０を介して接続され、該着脱機構
２０の両側には、圧送ホース側とバイパス管側それぞれ
にバルブ１９ａ。A bypass pipe 14 containing a steel ball 18 is connected to the middle of the pressure-feeding hose 13 via a detachable mechanism 20, and valves 19a are provided on both sides of the detachable mechanism 20, on the pressure-feeding hose side and the bypass pipe side, respectively.
１９ｂ、１９ｃ、１９ｄが設けられている。ロッドが所
定深度に達した時、硬化材を高圧にて圧送し、バルブ１
９ａ、１９ｂ、１９ｃ、１９ｄを開（ことにより、鋼球
１８を硬化材と共に５０′ツド先端に移動せしめる。19b, 19c, and 19d are provided. When the rod reaches a predetermined depth, hardening material is pumped under high pressure and valve 1
9a, 19b, 19c, and 19d (thereby moving the steel ball 18 together with the hardened material to the tip of the 50' end).
ロッド先端部に移動した鋼球１８は第３図の如く下方噴
射孔１６を塞ぎ、硬化材により圧送圧力により押し付け
られる。その結果、硬化材は側方噴射孔からのみ噴出し
、ロッドを回転しながら上昇させることにより、地盤中
への硬化材注入が施工される。ａ球がロッド先端に移動
した後の硬化材圧送はバルブ１９ａ、１９ｂ。The steel ball 18 that has moved to the tip of the rod closes the lower injection hole 16 as shown in FIG. 3, and is pressed by the pressure of the hardening material. As a result, the hardening material is injected only from the side injection holes, and by raising the rod while rotating, the hardening material is injected into the ground. After the ball a has moved to the tip of the rod, the hardening material is pumped through valves 19a and 19b.
１９ｃ、１９ｄを閉じることにより圧送ホースのみで行
う。By closing 19c and 19d, only the pressure hose is used.
いわゆるセメントミルクを硬化材として使用し、圧送圧
力を３００ ｋｇ ｆ／ｃｒｎ”として上記の操作を行
ったところ、所望の効果が得られることが確認された。When the above operation was carried out using so-called cement milk as a hardening agent and at a pumping pressure of 300 kg f/crn'', it was confirmed that the desired effect could be obtained.
第４図は、５つ目のバルブ１９ｅをバイパス管に並列と
なる圧送ホースの部分に設けた実施例を示している０ｗ
４球１８の移送の際、１９ａ。FIG. 4 shows an embodiment in which the fifth valve 19e is provided in the part of the pressure feed hose that is parallel to the bypass pipe.
When transferring 4 balls 18, 19a.
１９ｂ、１９ｃ、１９ｄの４つのバルブを開くのみなら
ず、１９ｅを閉めることにより圧送圧力が分散せずにバ
イパス管のみに伝達されるため゛より確実に所望の結果
が得られる。By not only opening the four valves 19b, 19c, and 19d, but also closing 19e, the pumping pressure is transmitted only to the bypass pipe without being dispersed, so that the desired result can be more reliably obtained.
第５図は、バイパス管によらずに、Ｔ字管２５により上
記効果を得る実施例である。該Ｔ字管２５は、水平管と
それに対して枝分かれの形態により接続される鉛直管と
から構成され、該水平管には圧力計２１、該鉛直管には
バルブ２３ａ、２３ｂが設けられ、さらに該２個のバル
ブ間には鋼球（２４）を内蔵する。FIG. 5 shows an embodiment in which the above effect is obtained by using a T-tube 25 without using a bypass pipe. The T-shaped pipe 25 is composed of a horizontal pipe and a vertical pipe connected to the horizontal pipe in a branched manner, and the horizontal pipe is provided with a pressure gauge 21, and the vertical pipe is provided with valves 23a and 23b. A steel ball (24) is built in between the two valves.
鋼球２４移送にあっては、ポンプ１５による水の圧送を
中断し、圧力計２１により、水平管内の圧力が十分に下
がったことを確認してバルブ２３ｂを開く、鋼球２４は
重みにより水平管内に落下する。その後バルブ２３ｂを
閉じ、硬化材をポンプ１５により圧送し、鋼球２４を硬
化材とともにロッド先端に移動せしめる。その後の工程
はバイパス管の場合と同様である。７字管は、バイパス
管と異なり、圧送ホースに対して直列に接続されるので
分圧の問題は生じない。To transfer the steel ball 24, the pump 15 stops pumping water, and the pressure gauge 21 confirms that the pressure in the horizontal pipe has dropped sufficiently, and then the valve 23b is opened. Fall into the pipe. Thereafter, the valve 23b is closed, the hardening material is pumped through the pump 15, and the steel ball 24 is moved together with the hardening material to the tip of the rod. The subsequent steps are similar to those for the bypass pipe. Unlike the bypass pipe, the 7-shaped pipe is connected in series to the pressure hose, so there is no problem of partial pressure.
［効果］
本発明は如上のごとく比較的単純な構成及び構造にて、
安全確実に硬化材の噴出方向を制御できるという効果を
有する。[Effects] As described above, the present invention has a relatively simple configuration and structure, and
This has the effect of safely and reliably controlling the ejection direction of the hardening material.
また、着脱機構、バルブ等の操作により、本発明に使用
する鋼球、バイパス管、７字管等は繰返し便用できる。Further, by operating the attachment/detachment mechanism, valves, etc., the steel balls, bypass pipes, 7-shaped tubes, etc. used in the present invention can be used repeatedly.
第１図は、バイパス管を有する地盤改良装置の全体、第
２図は、ロッドを地盤に挿入する際のロッド先端部、第
３図はロッドを回転させながら上昇させて地盤中に硬化
材を注入する際のロッド先端部、第４図は、バイパス管
に並列となる圧送ホースの部分にバルブを有する実施例
、第５図は、７字管を有する地盤改良装置を示している
。
１０・・・注入ロッド
１１・・・回転上下動機構
１２・・・スイベル
１３・・・圧送ホース
１４・・・バイパス管
１’５・・・高圧スラリーポンプ
１６・・・下方噴射孔
１７・・・側方噴射孔
１８・・・鋼球
１９ａ、１９ｂ、１９ａ％ １９ｄ、１９ｅ・・・バル
ブ
２０・・・着脱機構
２１・・・圧力計
２２・・・安全蓋
２３ａ、２３ｂ・・・・バルブ
２４・・・鋼球
２５・・・７字管
２６・・・スタンド
第
１
図
第２図
第３図
第４図
第５図Figure 1 shows the entire soil improvement device with a bypass pipe, Figure 2 shows the tip of the rod when it is inserted into the ground, and Figure 3 shows the rod being rotated and raised to inject hardening material into the ground. The tip of the rod used for injection, FIG. 4, shows an embodiment having a valve in the part of the pressure-feeding hose that is parallel to the bypass pipe, and FIG. 5 shows a ground improvement device having a 7-shaped pipe. 10... Injection rod 11... Rotating vertical movement mechanism 12... Swivel 13... Pressure feeding hose 14... Bypass pipe 1'5... High pressure slurry pump 16... Lower injection hole 17...・Side injection hole 18...Steel balls 19a, 19b, 19a% 19d, 19e...Valve 20...Detachable mechanism 21...Pressure gauge 22...Safety lid 23a, 23b...Valve 24...Steel ball 25...7-shaped tube 26...Stand 1 Figure 2 Figure 3 Figure 4 Figure 5
Claims (1)
本体を回転上下動機構に連繋させると共に、ロッド上端
はスイベル及び圧送ホースを介して高圧スラリーポンプ
に接続して成る地盤改良装置において、鋼球を内蔵する
バイパス管を着脱機構を介して圧送ホースの途中に並列
に接続し、該着脱機構の両側には、圧送ホース側とバイ
パス管側それぞれにバルブを設けることを特徴とする地
盤改良装置。 ２、バイパス管に対して並列となる圧送ホースの部分の
中間にバルブを設けることを特徴とする請求項１記載の
地盤改良装置。 ３、下方噴射孔と側方噴射孔とを下端部に有するロッド
本体を回転上下動機構に連繋させるとともに、ロッド上
端はスイベル及び圧送ホースを介して高圧スラリーポン
プに接続して成る地盤改良装置において、水平方向に固
定された管とその中間に接続され鉛直上方に伸びる枝管
とから成るＴ字管を着脱機構を介して圧送ホースの途中
に直列に接続し、該水平管には圧力計を設け、該鉛直管
にはバルブを２個設けるとともに、該２個のバルブの間
に鋼球を内蔵することを特徴とする地盤改良装置。[Claims] 1. A rod body having a lower injection hole and a side injection hole at its lower end is connected to a rotating vertical movement mechanism, and the upper end of the rod is connected to a high-pressure slurry pump via a swivel and a pressure hose. In the ground improvement device, a bypass pipe containing a steel ball is connected in parallel to the middle of the pressure hose via a detachable mechanism, and valves are provided on both sides of the detachable mechanism, respectively on the pressure hose side and the bypass pipe side. A ground improvement device characterized by: 2. The ground improvement device according to claim 1, characterized in that a valve is provided in the middle of a portion of the pressure hose that is parallel to the bypass pipe. 3. In a ground improvement device in which a rod body having a lower injection hole and a side injection hole at the lower end is connected to a rotating vertical movement mechanism, and the upper end of the rod is connected to a high-pressure slurry pump via a swivel and a pressure hose. A T-shaped pipe consisting of a horizontally fixed pipe and a branch pipe connected in the middle and extending vertically upward is connected in series in the middle of the pressure hose via a detachable mechanism, and a pressure gauge is attached to the horizontal pipe. A ground improvement device characterized in that the vertical pipe is provided with two valves, and a steel ball is built in between the two valves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1171635A JPH079090B2 (en) | 1989-07-03 | 1989-07-03 | Ground improvement device with bypass pipe or T-shaped pipe containing steel balls |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1171635A JPH079090B2 (en) | 1989-07-03 | 1989-07-03 | Ground improvement device with bypass pipe or T-shaped pipe containing steel balls |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0336312A true JPH0336312A (en) | 1991-02-18 |
| JPH079090B2 JPH079090B2 (en) | 1995-02-01 |
Family
ID=15926851
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1171635A Expired - Lifetime JPH079090B2 (en) | 1989-07-03 | 1989-07-03 | Ground improvement device with bypass pipe or T-shaped pipe containing steel balls |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH079090B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001303541A (en) * | 2000-04-24 | 2001-10-31 | Onoda Chemico Co Ltd | Injection switching device |
| US7949545B1 (en) | 2004-05-03 | 2011-05-24 | The Medical RecordBank, Inc. | Method and apparatus for providing a centralized medical record system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4841602U (en) * | 1971-09-14 | 1973-05-28 | ||
| JPS49121305U (en) * | 1973-02-12 | 1974-10-17 |
-
1989
- 1989-07-03 JP JP1171635A patent/JPH079090B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4841602U (en) * | 1971-09-14 | 1973-05-28 | ||
| JPS49121305U (en) * | 1973-02-12 | 1974-10-17 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001303541A (en) * | 2000-04-24 | 2001-10-31 | Onoda Chemico Co Ltd | Injection switching device |
| US7949545B1 (en) | 2004-05-03 | 2011-05-24 | The Medical RecordBank, Inc. | Method and apparatus for providing a centralized medical record system |
| US8239218B1 (en) | 2004-05-03 | 2012-08-07 | The Medical RecordBank, Inc. | Method and apparatus for providing a centralized medical record system |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH079090B2 (en) | 1995-02-01 |
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