JPS5826109A - Compaction work for soft ground - Google Patents
Compaction work for soft groundInfo
- Publication number
- JPS5826109A JPS5826109A JP12549581A JP12549581A JPS5826109A JP S5826109 A JPS5826109 A JP S5826109A JP 12549581 A JP12549581 A JP 12549581A JP 12549581 A JP12549581 A JP 12549581A JP S5826109 A JPS5826109 A JP S5826109A
- Authority
- JP
- Japan
- Prior art keywords
- soft ground
- ground
- rod
- consolidation
- compaction method
- 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.)
- Pending
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
- E02D3/046—Improving by compacting by tamping or vibrating, e.g. with auxiliary watering of the soil
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)
Abstract
Description
【発明の詳細な説明】
本発明は海底地盤等の水面下の軟弱地盤を強化もしくは
、不陸整正るため0WItIIL1に軟弱地盤0締固め
工法1fc@する。DETAILED DESCRIPTION OF THE INVENTION The present invention uses a soft ground compaction method 1fc@ in 0WItIIL1 in order to strengthen or level the unevenness of soft ground under water such as submarine ground.
近年の港湾施設勢はその基礎を一般には水面下の軟弱地
盤に設定しなければならず、そのために従来よ1一層蟲
合処理工法IIIによっていたが、これらの工法は軟場
層0@い地mに恒久的1km造物を築造することを目的
としているため、このIIIK属さない港湾の仮設構造
物等に対しては効果的な対処工法が開発されておらず、
従来法としてコンタ萼−トブロック、重錘等のハンマー
をタレーン船で吊下は自然落下をさせ軟弱な海底地盤を
締固めていたが、これらハンマー等に対する海水の抵抗
、浮力及び着底時のウオー!−クツシ菖ン等によって十
分効果的な締固5δγ臂51゜
本発明祉こOよう鷹事情に鑑み開発された工法で、地盤
を締固めるための圧密部を一端郁に有すると共和、鋏圧
*Sを海底地盤に載置したとき他端部が少なくとも水面
より上方に露出するようにしたロッド以下本発明の1実
施例を図面について脱刷する。In recent years, the foundations of modern port facilities generally have to be set on soft ground beneath the water surface, and for this purpose conventionally the 11-layer slender layer treatment method III has been used, but these construction methods have a soft ground layer of 0. Since the purpose of this project is to construct a permanent 1km-long structure in the area of IIIK, effective construction methods have not been developed for temporary port structures that do not belong to IIIK.
In the conventional method, hammers such as contour blocks and weights were suspended from a turbine ship to allow them to fall naturally and compact the soft seabed ground. ! - Sufficiently effective compaction 5δγ 51° by means of iris etc. This invention is a construction method developed in view of the current situation. *A rod whose other end is exposed at least above the water surface when S is placed on the seabed.An embodiment of the present invention will be described below with reference to the drawings.
菖4図(a)Φ)#′i本発明を示す簡略説明図で、0
)は打撃又は振動伝達用のロッドで、該一端部(1りに
はfIi底の軟弱地盤(G)又はマウンド(3)を締固
める友めO圧密部Q)が設けられ、該圧密部(2)が海
底に載置されたとき、前記ロッドα)の他端郁(lb)
ti少なくと−も水TjjJKクレーン船(S)のリー
ダー(L)に設置されたディーゼルパイルハンマー(H
)等のハンマー装置により打撃又#i振動を与え、軟弱
地盤(G)又はマウント(2)をロッドα)を介して#
1固める方法である。Diagram 4 (a) Φ) #'i A simple explanatory diagram showing the present invention, 0
) is a rod for impact or vibration transmission, and one end of the rod is provided with a consolidation part (Q) for compacting the soft ground (G) or mound (3) at the bottom of fIi, and the consolidation part ( 2) is placed on the seabed, the other end of the rod α) (lb)
At least the diesel pile hammer (H) installed on the leader (L) of the water TjjJK crane ship (S)
) etc. by applying impact or #i vibration to soft ground (G) or mount (2) via rod α).
1. This is a method of hardening.
冑、この場合圧密部(匂は平面板状で、軟1地盤又はX
、精度よく仕上げ
マウンドを効率良く締固 ことができるようになって
いる。In this case, the consolidated part (the part is in the shape of a flat plate, with soft ground or
This makes it possible to compact finished mounds with high precision and efficiency.
第ffi@(a)(ロ)(C)は圧密部の種々の形状を
示すもので第2図C)はロッドα)の一端部(lりの圧
密部を平面板(幻で構成し、該平面板(2’)を前記ロ
ッド一端部(1a)K轟接し、同着せしめると共に該一
端部(lりに周設されたリブ(3)(3)−・で補強せ
しめたものである。同、図では平面[(2’)は矩形板
状に示されているが、矩形板状に限られるものではない
。第2図(b)(e)はロッド一端II(1すIIC@
着された平面板状の圧密部(2” )oiuswcコー
ン状の突起体偵)を1又は複数個形設した場合を示すも
ので、これらの圧密部(2” )#′i特に軟弱な地I
g対して有効である。Figures ffi@(a), (b), and (C) show various shapes of the consolidated part, and Fig. 2 C) shows the consolidated part of one end (of the rod α) formed by a flat plate (phantom). The flat plate (2') is attached to one end of the rod (1a), and is reinforced with ribs (3) (3) provided around the one end (1a). . In the same figure, the plane [(2') is shown as a rectangular plate shape, but it is not limited to a rectangular plate shape. Fig. 2 (b) and (e) show one end of the rod II (1 IIC@
This figure shows a case in which one or more flat plate-shaped consolidation parts (2") cone-shaped projections) are formed, and these consolidation parts (2") #'i are particularly suitable for soft ground. I
It is valid for g.
第s!!llは圧密部(2“′)を尖形に形設したもの
で、このqラドO使[Kより軟弱地盤の締固めだけでな
く砕岩船にも応用することができ、サンゴ礁等の浚渫も
可能となる等応用範囲が広い。No. s! ! ll has a compacted part (2"') shaped into a pointed shape, and can be applied not only to compaction of soft ground but also to rock crushing ships, and can also be used for dredging coral reefs etc. It has a wide range of applications.
上記Oように本発明は簡単な構成であるばかりでなく、
従来O機械的に貫入させる打込杭と同様な方法で作業が
できるため短時間に圧密効果の優れた基礎地盤を形成す
ることが可能で、海底の基礎地盤支持力及び不等沈下対
策等に又、現在まで仕上げが困難であった深度及び透明
度であつても水面上で不陸を検査出来るため、精度のよ
い仕上げができ極めて有効な軟弱地盤のAs mentioned above, the present invention not only has a simple configuration, but also
Because the work can be done in the same way as the conventional mechanically penetrated driven pile, it is possible to form a foundation ground with excellent consolidation effects in a short time, and it is useful for improving the bearing capacity of the foundation ground on the seabed and preventing uneven settlement. In addition, it is possible to inspect unevenness on the water surface even at depths and transparency that have been difficult to finish until now, allowing for highly accurate finishing and an extremely effective method for detecting soft ground.
第4図C)に)嫁本発明工法を示す簡略説明図、第2図
(a)(b)(e)及び第3図は圧密部の種々の形状を
示す説明図を夫々示す・
1−−−−−−−−−−−−一・−一ロツドfi 、
3′、 fl、211#−圧密部3−−−−−−−−−
−−−・−・琴プ4……………突起体
第2図
(0)
第3図
(b)
(C)Figure 4C) is a simplified explanatory diagram showing the construction method of the present invention, and Figures 2(a), (b), (e) and 3 are explanatory diagrams showing various shapes of the consolidation part.1- −−−−−−−−−−−1・−1 rod fi,
3', fl, 211#--consolidation part 3--------
---・-・Kotopu 4……Protrusion Figure 2 (0) Figure 3 (b) (C)
Claims (1)
共に%鋏圧脅郁を海底地盤に載置したと龜他端部が少な
くとも水面より上方に露出するようにしたロッドの前記
他端部に打撃又は振動を与えて地盤を任意の強度に締固
めまたは、任意の精度に仕上げることを特徴とする軟弱
地盤の締固め工法。 (2)圧**が千両板状であることを特徴とする特許請
求の範囲第1項記載の軟弱地盤の締固め工法・0)圧一
部底部にコーン状0央起体を1又蝶複数個形威したこと
を特徴とする特許請求の範囲第1項又は嬉2項記載01
cII地盤の締固め工法。 C) 圧密部が尖形であることを特徴とする特許請求o
mim第1g記賦の軟弱地盤の締固め工法・[Claims] α) One end has a consolidation part for compacting the ground, and the other end of the pitcher is exposed at least above the water surface when the pitcher is placed on the seabed ground. A compaction method for soft ground, characterized in that the other end of the rod is subjected to impact or vibration to compact the ground to a desired strength or to a desired precision. (2) A compaction method for soft ground according to claim 1, characterized in that the pressure ** is in the shape of a senryo board. Claim 1 or 2 Claim 01 characterized in that it has a plurality of shapes.
cII soil compaction method. C) Patent claim o characterized in that the consolidation part is pointed-shaped
Compaction method for soft ground as described in MIM No. 1g
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12549581A JPS5826109A (en) | 1981-08-11 | 1981-08-11 | Compaction work for soft ground |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12549581A JPS5826109A (en) | 1981-08-11 | 1981-08-11 | Compaction work for soft ground |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5826109A true JPS5826109A (en) | 1983-02-16 |
Family
ID=14911511
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12549581A Pending JPS5826109A (en) | 1981-08-11 | 1981-08-11 | Compaction work for soft ground |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5826109A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63312412A (en) * | 1987-06-12 | 1988-12-20 | Zenitakagumi:Kk | Underwater compacting work |
JP2013174055A (en) * | 2012-02-23 | 2013-09-05 | Nippon Kaikou Kk | Underwater obstacle crushing device and underwater obstacle crushing method |
CN108049416A (en) * | 2017-11-28 | 2018-05-18 | 中铁四局集团第四工程有限公司 | A kind of construction method of underground pipe gallery foundation pit Cast-in-situ Piles in Sand-filling compacting |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS50125514A (en) * | 1974-03-22 | 1975-10-02 | ||
JPS52134208A (en) * | 1976-05-04 | 1977-11-10 | Kaiyo Kogyo Kk | Method of improving water bottom subsoil |
-
1981
- 1981-08-11 JP JP12549581A patent/JPS5826109A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS50125514A (en) * | 1974-03-22 | 1975-10-02 | ||
JPS52134208A (en) * | 1976-05-04 | 1977-11-10 | Kaiyo Kogyo Kk | Method of improving water bottom subsoil |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63312412A (en) * | 1987-06-12 | 1988-12-20 | Zenitakagumi:Kk | Underwater compacting work |
JP2013174055A (en) * | 2012-02-23 | 2013-09-05 | Nippon Kaikou Kk | Underwater obstacle crushing device and underwater obstacle crushing method |
CN108049416A (en) * | 2017-11-28 | 2018-05-18 | 中铁四局集团第四工程有限公司 | A kind of construction method of underground pipe gallery foundation pit Cast-in-situ Piles in Sand-filling compacting |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
Jonker | Vibratory pile driving hammers for pile installations and soil improvement projects | |
CN110485313A (en) | Bridge pier stream dead zone reinforcement means | |
CN104790373B (en) | The closely knit method of immersed tube exciting | |
JPS5826109A (en) | Compaction work for soft ground | |
GB751775A (en) | Improvements in or relating to sub-aqueous structures | |
Guangyin et al. | Resonance vibration approach in soil densification: laboratory experiences and numerical simulation | |
CN106192980B (en) | A kind of method of the closely knit sandstone ground of dither | |
CN110344388A (en) | The tamping point of dynamic compaction reinforced saturated sand foundation effectively influences line space design method | |
CN205954647U (en) | Miniature stake professional equipment of real airborne water high frequency compaction | |
ATE119227T1 (en) | TRANSFER OF THE LOAD OF A BUILDING VIA STEEL BEAMS TO THE SURROUNDING AREA BY USING A SPECIAL FALL BEAR. | |
JPS60173213A (en) | Compacting work of soft ground | |
SU503981A1 (en) | The method of deep compaction of the array of water-saturated sandy soil | |
Ikeda et al. | A study on damping and mitigation performance of side surfaces of foundations on soft soil-Part 1: Forced vibration tests of foundation block with various embedment conditions | |
SU1698377A1 (en) | Pile foundation | |
SU1565965A1 (en) | Method of erecting pile foundation | |
JPS6125859B2 (en) | ||
JPS5931774Y2 (en) | Mixed foundation rubble mound | |
JPS6049734B2 (en) | How to form a basement | |
JP2575032B2 (en) | Sandy ground vibration consolidation method | |
JPS5991228A (en) | Pit excavation work using caisson | |
JPH06116922A (en) | Building method for structure using artificial rock | |
SU1041640A1 (en) | Method of constructing pile foundation mat | |
JPH09189024A (en) | Compaction drain execution method and device therefor | |
JPS62182311A (en) | Compacting and leveling work for underwater mound | |
SU1032113A1 (en) | Pile foundation |