JPS6053133B2 - Vibration dewatering acceleration type ground compaction equipment - Google Patents
Vibration dewatering acceleration type ground compaction equipmentInfo
- Publication number
- JPS6053133B2 JPS6053133B2 JP417281A JP417281A JPS6053133B2 JP S6053133 B2 JPS6053133 B2 JP S6053133B2 JP 417281 A JP417281 A JP 417281A JP 417281 A JP417281 A JP 417281A JP S6053133 B2 JPS6053133 B2 JP S6053133B2
- Authority
- JP
- Japan
- Prior art keywords
- ground
- vibrating body
- hollow cylindrical
- water
- type ground
- 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
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/02—Improving by compacting
- E02D3/10—Improving by compacting by watering, draining, de-aerating or blasting, e.g. by installing sand or wick drains
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Structural Engineering (AREA)
- Agronomy & Crop Science (AREA)
- Environmental & Geological Engineering (AREA)
- Soil Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Description
【発明の詳細な説明】
本発明は振動による締固め効果が期待てきる高含水比の
ゆるい地盤を改良する装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an apparatus for improving loose ground with a high moisture content, which is expected to have a compaction effect due to vibration.
従来、地盤を改良する場合、地盤に振動を与え、土粒子
の沈降によつて生ずる過剰間隙水をその上昇流によつて
地上に排水したり、あるいは砂柱を設けて、毛管現象に
より地上に排水するようにしていた。本発明は上記より
もさらに効果的に地盤を締固めることのできる装置を提
供するものである。Conventionally, when improving the ground, the ground is vibrated and excess pore water generated by sedimentation of soil particles is drained to the ground through upward flow, or sand columns are installed to allow capillary action to reach the ground. I was trying to drain it. The present invention provides a device that can compact the ground more effectively than the above.
即ち、本発明の目的とするところは、過剰間隙の発生す
る振動源の至近の場所で、地中の過剰水分を振動体内に
集めことにより、過剰水の流れの距離を短かくして脱水
効果を高め、以つて地盤の圧密効果、締固め効果を高め
ることにある。以下、本発明の一実施例を図面に基つき
説明する。That is, an object of the present invention is to collect excess water in the ground within the vibrating body at a location close to the vibration source where excess pores are generated, thereby shortening the flow distance of excess water and increasing the dehydration effect. The aim is to improve the consolidation and compaction effects of the ground. An embodiment of the present invention will be described below with reference to the drawings.
第１図において、１は高含水比のゆるい砂質系の地盤又
はシルト質地盤、２は上記地盤１内に挿入されて過剰間
隙水を脱水すると共に地盤１を締固める振動体、３は揚
重機４に取付けられたリーダ５に案内されて上記振動体
２を上下方向で振動させながら地盤１内に挿入する起振
機（例えばバイプロハンマー）である。ここで、上記振
動体２を第２図に基づき詳しく説明すると、該振動体２
は上端開口且つ有底中空筒状に形成され、またその底部
２ａは先窄まり状にされると共にその最下端には排水口
６が設けられている。なお、７は排水口６のプラグであ
る。そして、上記振動体２の中空筒状部２ｂの周囲には
多数の貫通穴８が設けられると共に、該貫通穴８にはフ
ィルター（図示せず）が設けられている。また、上記中
空筒状部２ｂの下部周囲には複数個の突固め突起９が設
けられている。なお、第１図及び第２図において、１０
は振動体２の底部２ａ内に設けられた水中ポンプ、１１
・は同排水ホース、１２は振動体２の上端開口に設けら
れた気密蓋、１３は上記気密蓋１２に可撓管１４を介し
て接続された真空ポンプで、上記各部品１０〜１４は後
述するが地盤の性質に応じて使用されるものである。In Figure 1, 1 is loose sandy or silty ground with a high water content, 2 is a vibrating body inserted into the ground 1 to dehydrate excess pore water and compact the ground 1, and 3 is a pumping body. This is a vibrating machine (for example, a bipro hammer) that is guided by a leader 5 attached to a heavy machine 4 and inserted into the ground 1 while vibrating the vibrating body 2 in the vertical direction. Here, the vibrating body 2 will be explained in detail based on FIG.
is formed into a hollow cylindrical shape with an open upper end and a bottom, and its bottom 2a is tapered and a drain port 6 is provided at its lowermost end. Note that 7 is a plug for the drain port 6. A large number of through holes 8 are provided around the hollow cylindrical portion 2b of the vibrating body 2, and each of the through holes 8 is provided with a filter (not shown). Further, a plurality of tamping protrusions 9 are provided around the lower portion of the hollow cylindrical portion 2b. In addition, in Figures 1 and 2, 10
11 is a submersible pump provided in the bottom 2a of the vibrating body 2;
- is the same drainage hose; 12 is an airtight lid provided at the upper end opening of the vibrating body 2; 13 is a vacuum pump connected to the airtight lid 12 via a flexible tube 14; each of the above parts 10 to 14 will be described later. However, it is used depending on the nature of the ground.
以上のような構成によると、改良しようとする地盤１上
に振動体２を位置させて、起振機３により振動体２に上
下動の振動を与え、この振動を利用して振動体２を地盤
１内に挿入すると共に地盤１の密度を増加させて締固め
を行なつていく。According to the above configuration, the vibrating body 2 is positioned on the ground 1 to be improved, the vibrator 3 gives vertical vibration to the vibrating body 2, and this vibration is used to move the vibrating body 2. As it is inserted into the ground 1, the density of the ground 1 is increased and compaction is performed.
そして、振動体２が地盤１内に入つて行くにつれて、過
剰間隙水Ａは振動体２の周囲に設けられた貫通穴８を介
して振動体２内に入り、その底部２ａ内に貯えられる。
この貯えられた過剰間隙水Ａは、水量が多い地盤におい
ては、底部２ａ内に設けられた水中ポンプ１０及び排水
ホース１１を介して強制的に排水され、また水量が少な
い地盤においては、振動体２の底部２ａ内にそのまま貯
えておき、振動体２を引抜いた際に下端のプラグ７を外
してその排水口６より排水する。更に、比較的透水性の
小さい地盤においては、振動体２の上端開口に気密性の
ある気密蓋１２を設け、これに真空ポンプ１３を可撓管
１４を介して接続し、振動体２や所定の深さまで挿入さ
れた時に、真空ポンプ１３を作動させて地盤内の過剰間
隙水を振動体２内に引込むようにすればよい。なお、振
動体２の外周に設けられた突固め突起９は、その引抜時
に、上下振動を利用して、地盤１内の土を下から漸次上
方に向けて突固め、地盤の締固め効果を−増大させるこ
とができるものである。また、上記振特動体は単数で使
用する必要はなく、複数の振動体を同時に地盤内に挿入
して、地盤の締固め及び脱水効果を高めるようにしても
よい。以上のように、本発明によれば、振動体によりＣ
地盤を締固めると共に地盤内の過剰間隙水を振動体内に
排水させることができ、従来のものに比べて過剰間隙水
の移動距離が極端に短かくなると共にその移動方向が上
昇から水平になり、従つて地盤の脱水効果が極めて良好
となるため、地盤の締固め効果を向上させることができ
る。As the vibrating body 2 moves into the ground 1, excess pore water A enters the vibrating body 2 through the through holes 8 provided around the vibrating body 2 and is stored in the bottom 2a thereof.
This stored excess pore water A is forcibly drained via the submersible pump 10 and drainage hose 11 provided in the bottom 2a in the ground with a large amount of water, and in the ground with a small amount of water, the vibrating body 2, and when the vibrating body 2 is pulled out, the plug 7 at the lower end is removed and the water is drained from the drain port 6. Furthermore, in ground with relatively low water permeability, an airtight lid 12 is provided at the upper end opening of the vibrating body 2, and a vacuum pump 13 is connected to this via a flexible tube 14. The vacuum pump 13 may be activated to draw excess pore water in the ground into the vibrating body 2 when the vibrating body 2 is inserted to a depth of . The tamping protrusions 9 provided on the outer periphery of the vibrating body 2 use vertical vibration to compact the soil in the ground 1 from below to gradually upward when the protrusion is pulled out, thereby increasing the compaction effect of the ground. - can be increased. Furthermore, it is not necessary to use a single vibrating body, and a plurality of vibrating bodies may be inserted into the ground at the same time to enhance the compaction and dewatering effects of the ground. As described above, according to the present invention, C
As well as compacting the ground, excess pore water in the ground can be drained into the vibrating body, and compared to conventional systems, the distance traveled by excess pore water is extremely shortened, and the direction of movement is changed from upward to horizontal. Therefore, the dehydration effect of the ground becomes extremely good, and the compaction effect of the ground can be improved.
また、振動体内に貯えられた過剰間隙水は、水量が多い
地盤においては、底部内に配置された水中ポンプ及び排
水ホースを介して強制的に排水され、また水量が少ない
地盤においては、振動体の底部内にそのまま貯えておき
、振動体を引抜いた際に下端のプラグを外してその排水
口より排水することができ、更に比較的透水性の小さい
地盤においては、振動体の上端開口に気密性のある気密
蓋を設け、これに真空ポンプを可撓管を介して接続し、
振動体が所定の深さまで挿入された時に、真空ポンプを
作動させれば、地盤内の過剰間隙水を振動体内に引込む
ことができ、従つて土質の異なる種々の地盤に対処し得
る。また、振動体の外周には突固め突起が設けられてい
るため、締固め効果が増大する。In addition, excess pore water stored in the vibrating body is forcibly drained out via a submersible pump and drainage hose placed in the bottom of the ground where there is a large amount of water; The water can be stored in the bottom of the vibrator, and when the vibrating body is pulled out, the plug at the bottom can be removed and the water can be drained from the drainage port.Furthermore, in ground with relatively low permeability, the opening at the top of the vibrating body can be airtight. A vacuum pump is connected to this via a flexible tube.
By activating the vacuum pump when the vibrating body is inserted to a predetermined depth, excess pore water in the ground can be drawn into the vibrating body, making it possible to handle various types of ground with different soil types. Further, since the tamping protrusions are provided on the outer periphery of the vibrating body, the tamping effect is increased.
図面は本発明の一実施例を示すものて、第１図は全体図
、第２図は要部拡大図である。
１・・・・・・地盤、２・・・・・・振動体、２ａ・・
・・・底部、２ｂ・・・・・・中空筒状部、３・・・・
・・起振機、４・・・・・・揚重機、８・・・・・・貫
通穴、Ａ・・・・・・過剰間隙水。The drawings show one embodiment of the present invention, and FIG. 1 is an overall view, and FIG. 2 is an enlarged view of the main parts. 1... Ground, 2... Vibrating body, 2a...
...Bottom, 2b...Hollow cylindrical part, 3...
...Exciter, 4...Lifting machine, 8...Through hole, A...Excess pore water.
Claims (1)
盤を締固める振動体を、上端開口且つ有底中空筒状に成
すと共に下端にプラグを有する排水口を設け、該中空筒
状部周囲にそれぞれフィルターを有する多数の貫通穴を
設けると共に、該中空筒状部の下部周囲に複数個突固め
突起を設け、更に上記振動体内に配置可能な水中ポンプ
、排水ホース、振動体の上端開口部を密閉可能な気密蓋
及び該気密蓋に可撓管を介して接続された真空ポンプを
具備したことを特徴とする振動脱水促進式地盤締固め装
置。1. A vibrating body that is vibrated by an exciter supported by a lifting machine to compact the ground is formed into a hollow cylindrical shape with an open upper end and a bottom, and a drain port with a plug is provided at the lower end, and A number of through holes each having a filter are provided in the hollow cylindrical part, and a plurality of tamping protrusions are provided around the lower part of the hollow cylindrical part, and a submersible pump, a drainage hose, and an opening at the upper end of the vibrating body can be arranged in the vibrating body. What is claimed is: 1. A vibration dehydration promoting soil compaction device comprising: an airtight lid that can be sealed; and a vacuum pump connected to the airtight lid via a flexible tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP417281A JPS6053133B2 (en) | 1981-01-14 | 1981-01-14 | Vibration dewatering acceleration type ground compaction equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP417281A JPS6053133B2 (en) | 1981-01-14 | 1981-01-14 | Vibration dewatering acceleration type ground compaction equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57119012A JPS57119012A (en) | 1982-07-24 |
| JPS6053133B2 true JPS6053133B2 (en) | 1985-11-22 |
Family
ID=11577303
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP417281A Expired JPS6053133B2 (en) | 1981-01-14 | 1981-01-14 | Vibration dewatering acceleration type ground compaction equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6053133B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6073912A (en) * | 1983-09-30 | 1985-04-26 | Fudo Constr Co Ltd | Dehydration type rod compaction method |
| JPH0645927B2 (en) * | 1985-12-09 | 1994-06-15 | 清水建設株式会社 | Ground compaction method |
| CA1338305C (en) * | 1987-11-23 | 1996-05-07 | Phoenix Engineering Ltd. | Method for densification of particulate masses |
| NL2032770B1 (en) * | 2022-08-17 | 2024-02-27 | Fnv Ip Bv | Method for densification of an amount of soil and apparatus |
-
1981
- 1981-01-14 JP JP417281A patent/JPS6053133B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57119012A (en) | 1982-07-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10144892B2 (en) | System and method for dewatering coal combustion residuals | |
| US6254308B1 (en) | Equipment and a method for partially drying a zone of ground containing a liquid | |
| JPS6053133B2 (en) | Vibration dewatering acceleration type ground compaction equipment | |
| US3240067A (en) | Method for collecting groundwater samples in situ | |
| US3498066A (en) | Soil compacting method and a means therefor | |
| JP2886374B2 (en) | Vibration compaction method | |
| JP4055184B2 (en) | Volume reduction method for water-bottom soft ground | |
| JP6270261B2 (en) | Water absorption vibration compaction method | |
| JPS644909Y2 (en) | ||
| RU2006551C1 (en) | Tubular filling pile erection method | |
| CN208933946U (en) | A kind of drainage arrangement of anti-Liquefaction of Light Loam | |
| JP4422811B2 (en) | Consolidation method in soft ground | |
| JP2881260B2 (en) | Liquefaction prevention method for sand ground | |
| SU718783A1 (en) | Device for preparing sand and clay samples of soil | |
| JP3438943B2 (en) | Soil liquefaction countermeasures and methods | |
| JPS6073912A (en) | Dehydration type rod compaction method | |
| JPH0348260Y2 (en) | ||
| JP3637361B2 (en) | High-speed fiber filtration equipment used in the recharge method | |
| SU966156A1 (en) | Apparatus for producing cast-in-place pile | |
| SU1390301A1 (en) | Method of consolidation soil | |
| JPH05302330A (en) | Backfilling method for rear of existing building | |
| JPS586012B2 (en) | Treatment method for soft and viscous ground using dynamic loading | |
| JPS61151311A (en) | Forming method of sand pile | |
| JPS5988523A (en) | Dehydrating device of supersoft ground | |
| JP2007247184A (en) | Ground consolidation construction method |