JP2805241B2 - Foundation ground control method for buildings - Google Patents
Foundation ground control method for buildingsInfo
- Publication number
- JP2805241B2 JP2805241B2 JP2139927A JP13992790A JP2805241B2 JP 2805241 B2 JP2805241 B2 JP 2805241B2 JP 2139927 A JP2139927 A JP 2139927A JP 13992790 A JP13992790 A JP 13992790A JP 2805241 B2 JP2805241 B2 JP 2805241B2
- Authority
- JP
- Japan
- Prior art keywords
- foundation ground
- control
- honeycomb
- block structure
- 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 - Fee Related
Links
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- Foundations (AREA)
Description
【発明の詳細な説明】 ［産業上の利用分野］ 本発明は、特に荷重分布が変化する建造物の基礎地盤
制御方法に関する。Description: FIELD OF THE INVENTION The present invention relates to a method for controlling a foundation ground of a building, in particular, in which a load distribution changes.
［従来の技術］ 一般に、軟弱地盤上に建造物（住宅等の建物、石油タ
ンク等の構造物）を構築する場合、サーチャージ工法、
プレロード工法、あるいは各種のバーチカルドレーン工
法などの軟弱地盤処理工法を施工して対処しているが、
下記のような場合には不等沈下が生じ、建物等に機能上
の障害が生じている場合が多い。[Prior art] Generally, when constructing buildings (buildings such as houses, structures such as oil tanks) on soft ground, a surcharge method,
We deal with it by constructing soft ground treatment method such as preload method or various vertical drain method,
In the following cases, uneven settlement occurs, and there are many cases where a functional obstacle occurs in a building or the like.
すなわち、不等沈下の原因としては、 １）基礎地盤が傾斜している。 That is, the causes of uneven settlement are as follows: 1) The foundation ground is inclined.
２）切盛境に位置している。2) It is located at the cutting edge.
３）上部建造物が近接しているため、地中伝播応力が重
なる。3) Underground propagation stress overlaps because the upper buildings are close to each other.
４）一部２階の建物やピアノ・風呂等の偏荷重により、
荷重分布が不均等となる。4) Due to unbalanced loads such as a 2nd floor building, piano and bath,
The load distribution becomes uneven.
５）二次圧密の発生。5) Secondary consolidation occurs.
上記不等沈下が生じた建物の対策としては、 Ａ）アンダーピニング Ｂ）建て換え などが考えられるが、非常に高価である。 The following measures can be taken for buildings with unequal settlement: A) underpinning, B) rebuilding, etc., but they are very expensive.
［発明が解決しようとする課題］ 本発明は、上記従来の問題点を解決するためになされ
たもので、その目的とするところは、不等沈下を常に監
視して、その原因となる不均等な荷重分布を修正するこ
とにより、不等沈下を効果的に防止することのできる建
造物の基礎地盤制御方法を提供することにある。[Problems to be Solved by the Invention] The present invention has been made in order to solve the above-mentioned conventional problems, and an object of the present invention is to constantly monitor unequal subsidence and to obtain an uneven It is an object of the present invention to provide a foundation ground control method for a building, which can effectively prevent uneven settlement by correcting a complicated load distribution.
［課題を解決するための手段］ 本発明の建造物の基礎地盤制御方法は、軟弱地盤上に
構築される建造物を支持する複数に区画されると共に、
垂直方向の耐圧縮強度と大容量の空隙を有するハニカム
ブロックにより構成された各制御ブロック構造体を、そ
れぞれ垂直方向に独立して移動可能に構成すると共に、
荷重の小さい部分の制御ブロック構造体には液体を注ぎ
込み、逆に、過大な荷重がかかる制御ブロック構造体に
は液体を排出することにより、荷重分布をコントロール
して地盤の不等沈下を制御するように構成したことを特
徴とする ［実施例］ 以下、本発明の一実施例について図面を参照しながら
説明する。[Means for Solving the Problems] The foundation ground control method for a building of the present invention is divided into a plurality of sections for supporting a building constructed on soft ground,
Each control block structure constituted by a honeycomb block having a compressive strength in the vertical direction and a large-capacity void is configured to be movable independently in the vertical direction,
Liquid is poured into the control block structure where the load is small, and liquid is discharged into the control block structure where an excessive load is applied, thereby controlling the load distribution and controlling the uneven settlement of the ground. [Embodiment] An embodiment of the present invention will be described below with reference to the drawings.
第１図において、１は住宅であって、その基礎地盤Ｇ
中に制御ブロック構造体２が敷設されている。In FIG. 1, reference numeral 1 denotes a house, and its foundation ground G
A control block structure 2 is laid therein.
該制御ブロック構造体２は、第２図からも明らかなよ
うに、ハニカムブロック2aと遮水膜2bから構成されてい
る。該ハニカムブロック2aは、第３図に示すように、垂
直方向に貫通する六角柱状の透孔すなわち貫通ハニカム
室を多数形成するように硬質プラスチックによりハチの
巣状に成型加工されたハニカムコア2a′と、該ハニカム
コア2a′を上下から挟むジオテキスタイル等の不織布2
a″から構成されていて、特に垂直方向に対する耐圧縮
強度を有すると共に大容量の空隙を有する。該ハニカム
ブロック2aは製造・運搬・施工の都合上、適宜大きさに
形成されていて、敷設現場において所要高さに積み重ね
られる。ハニカムブロック2aは、ジオメンブレン等の遮
水膜2bにより所定区画に分割されている。該遮水膜2bは
ハニカムブロック2aの底部にも敷設されている。各区画
のハニカムブロク2aは各々垂直方向に独立して移動可能
となっている。As is clear from FIG. 2, the control block structure 2 is composed of a honeycomb block 2a and a water blocking film 2b. As shown in FIG. 3, the honeycomb block 2a has a honeycomb core 2a 'formed into a honeycomb shape by hard plastic so as to form a large number of hexagonal column-shaped through holes, that is, through honeycomb chambers penetrating in the vertical direction. And a nonwoven fabric 2 such as a geotextile sandwiching the honeycomb core 2a ′ from above and below.
a ", having particularly high compressive strength in the vertical direction and having a large volume of voids. The honeycomb block 2a is formed in an appropriate size for the convenience of manufacturing, transportation, and construction. The honeycomb block 2a is divided into predetermined sections by a water blocking film 2b such as a geomembrane, etc. The water blocking film 2b is also laid at the bottom of the honeycomb block 2a. Can be independently moved in the vertical direction.
３は給排水パイプ、４は給排気パイプであって、各々
のパイプ3,4から分岐パイプ3a,4aが分岐されていて、上
記区画毎のハニカムブロック2aに導かれている。各分岐
部分にはコック3b,4bが取り付けられている。Reference numeral 3 denotes a supply / drainage pipe, and 4 denotes a supply / exhaust pipe. Branch pipes 3a and 4a are branched from the respective pipes 3 and 4, and are led to the honeycomb block 2a for each section. Cocks 3b and 4b are attached to each branch portion.
上記給排水パイプ３は必要に応じて水タンク５に接続
される。該水タンク５には、コンプレッサー６からの圧
縮空気が送られて上記排水パイプ３に給水したり、ま
た、真空ポンプ７により吸引されて給排水パイプ３から
水を抜くようになっている。これらの水タンク5,コンプ
レッサー６および真空ポンプ７等は運搬車８に搭載され
ていて、移動可能となっている。The water supply / drainage pipe 3 is connected to a water tank 5 as needed. Compressed air from a compressor 6 is sent to the water tank 5 to supply water to the drainage pipe 3, or is sucked by a vacuum pump 7 to drain water from the supply / drainage pipe 3. The water tank 5, the compressor 6, the vacuum pump 7 and the like are mounted on a carrier 8 and are movable.
次に、上記実施例における制御方法について説明す
る。Next, a control method in the above embodiment will be described.
住宅１の不等荷重により基礎地盤Ｇに不等沈下が生ず
る恐れがあると、上記給排水パイプ３を水タンク５に接
続して、荷重の小さい部分のハニカムブロック２に水を
注ぎ込んで荷重を増大させ、荷重分布を修正しながら不
等沈下を抑制する。この作業を沈下が進行していない範
囲のハニカムブロック２に対して繰り返して行う。If there is a possibility that uneven settlement of the foundation ground G may occur due to the uneven load of the house 1, the water supply / drainage pipe 3 is connected to the water tank 5 and water is poured into the honeycomb block 2 of a small load to increase the load. To suppress uneven settlement while correcting the load distribution. This operation is repeated for the honeycomb blocks 2 in the range where the settlement has not progressed.
荷重が過大となって沈下の進行が著しい場合には、逆
にハニカムブロック２内に供給した水を給排水パイプ３
を通じて抜いて、沈下量を制御する。If the load becomes excessive and the settlement progresses significantly, the water supplied to the honeycomb block 2 is conversely supplied to the supply / drain pipe 3.
Through to control the amount of settlement.
上記給排水パイプ３における水の給排水に応じて、ハ
ニカムブロック２内の空気を空気パイプ４を通じて排出
させたり導入したりする。The air in the honeycomb block 2 is discharged or introduced through the air pipe 4 according to the water supply and drainage of the water supply and drain pipe 3.
第４図は石油タンクの基礎地盤Ｇ内にハニカムブロッ
ク２を敷設した別の実施例を示すものである。FIG. 4 shows another embodiment in which the honeycomb block 2 is laid in the foundation ground G of the oil tank.
［発明の効果］ （１）各制御ブロック構造体が、それぞれ垂直方向に独
立して移動可能に構成され、荷重の小さい部分の制御ブ
ロック構造体には液体を注ぎ込み、逆に、過大な荷重が
かかる制御ブロック構造体には液体を排出することによ
り、不等沈下を制御するように、構成されているので、
容易にかつ確実に制御することができる。[Effects of the Invention] (1) Each control block structure is configured to be independently movable in the vertical direction, and liquid is poured into the control block structure of a small load portion, and conversely, an excessive load is applied. Since such a control block structure is configured to control unequal settlement by discharging liquid,
Control can be performed easily and reliably.
（２）制御ブロック構造体を、垂直方向の耐圧縮強度と
大容量の空隙を有するハニカムブロックにより構成した
ので、基礎地盤の置換工として荷重軽減効果が大きく、
また切盛境等の地盤地層の傾斜に対して深さ（高さ）を
容易に変更でき、さらに、ブロックの大きさを自由に選
択できる等の利点がある。(2) Since the control block structure is made of a honeycomb block having compressive strength in the vertical direction and a large-capacity void, the load reduction effect is great as a replacement work for the foundation ground.
Further, there are advantages that the depth (height) can be easily changed with respect to the inclination of the ground stratum such as a cut boundary, and the size of the block can be freely selected.
第１図は本発明方法を実施する基礎地盤の断面図、第２
図は地盤制御構造体の斜視図、第３図はハニカムブロッ
クの一部切欠斜視図、第４図は別の実施例の断面図であ
る。 １……住宅、２……制御ブロック構造体、2a……ハニカ
ムブロック、2a′……ハニカムコア、2a″……不織布、
2b……遮水膜、３……給排水パイプ、3a……分岐パイ
プ、3b……コック、４……給排気パイプ、4a……分岐パ
イプ、4b……コック、５……水タンク、６……コンプレ
ッサー、７……真空ポンプ、８……運搬車、Ｇ……基礎
地盤。FIG. 1 is a sectional view of a foundation ground for carrying out the method of the present invention, and FIG.
FIG. 3 is a perspective view of a ground control structure, FIG. 3 is a partially cutaway perspective view of a honeycomb block, and FIG. 4 is a cross-sectional view of another embodiment. 1 ... house, 2 ... control block structure, 2a ... honeycomb block, 2a '... honeycomb core, 2a "... non-woven fabric,
2b: water barrier film, 3: supply / drain pipe, 3a: branch pipe, 3b: cock, 4: supply / exhaust pipe, 4a: branch pipe, 4b: cock, 5: water tank, 6 ... ... compressor, 7 ... vacuum pump, 8 ... carrier, G ... foundation ground.
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.6，ＤＢ名) E02D 27/34──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. 6 , DB name) E02D 27/34
Claims (1)
複数に区画されると共に、垂直方向の耐圧縮強度と大容
量の空隙を有するハニカムブロックにより構成された各
制御ブロック構造体を、それぞれ垂直方向に独立して移
動可能に構成すると共に、荷重の小さい部分の制御ブロ
ック構造体には液体を注ぎ込み、逆に、過大な荷重がか
かる制御ブロック構造体には液体を排出することによ
り、荷重分布をコントロールして地盤の不等沈下を制御
するように構成したことを特徴とする建造物の基礎地盤
制御方法。1. A control block structure comprising a honeycomb block having a plurality of partitions supporting a building constructed on soft ground and having a vertical compressive strength and a large capacity void, In addition to being configured to be movable independently in the vertical direction, liquid is poured into the control block structure of the portion with a small load, and conversely, liquid is discharged to the control block structure where an excessive load is applied, A foundation ground control method for a building, characterized in that the load distribution is controlled to control uneven settlement of the ground.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2139927A JP2805241B2 (en) | 1990-05-31 | 1990-05-31 | Foundation ground control method for buildings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2139927A JP2805241B2 (en) | 1990-05-31 | 1990-05-31 | Foundation ground control method for buildings |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0434123A JPH0434123A (en) | 1992-02-05 |
| JP2805241B2 true JP2805241B2 (en) | 1998-09-30 |
Family
ID=15256907
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2139927A Expired - Fee Related JP2805241B2 (en) | 1990-05-31 | 1990-05-31 | Foundation ground control method for buildings |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2805241B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007092420A (en) * | 2005-09-29 | 2007-04-12 | Daiwa House Ind Co Ltd | Method of constructing foundation by using floating piles, and method of repairing differential settlement |
| CA2875476A1 (en) * | 2012-06-05 | 2013-12-12 | Charles Caulder Bree | Modular foundation resistant to ground movement |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0261225A (en) * | 1988-08-27 | 1990-03-01 | Shimizu Corp | Low-rise construction of weak ground |
-
1990
- 1990-05-31 JP JP2139927A patent/JP2805241B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0434123A (en) | 1992-02-05 |
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