WO2001055512A1 - Procede pour indiquer la classe d'un materiau de construction a base de terre ou autre, mise en sac pour resister aux contraintes, et materiau de construction presentant la classe indiquee par le procede - Google Patents

Procede pour indiquer la classe d'un materiau de construction a base de terre ou autre, mise en sac pour resister aux contraintes, et materiau de construction presentant la classe indiquee par le procede Download PDF

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Publication number
WO2001055512A1
WO2001055512A1 PCT/JP2001/000497 JP0100497W WO0155512A1 WO 2001055512 A1 WO2001055512 A1 WO 2001055512A1 JP 0100497 W JP0100497 W JP 0100497W WO 0155512 A1 WO0155512 A1 WO 0155512A1
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WO
WIPO (PCT)
Prior art keywords
performance
construction material
substitute
soil
bag
Prior art date
Application number
PCT/JP2001/000497
Other languages
English (en)
Japanese (ja)
Inventor
Hajime Matsuoka
Masahiro Sato
Original Assignee
Technosol Co., Ltd.
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Technosol Co., Ltd. filed Critical Technosol Co., Ltd.
Publication of WO2001055512A1 publication Critical patent/WO2001055512A1/fr

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
    • E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
    • E02B3/12—Revetment of banks, dams, watercourses, or the like, e.g. the sea-floor
    • E02B3/122—Flexible prefabricated covering elements, e.g. mats, strips
    • E02B3/127—Flexible prefabricated covering elements, e.g. mats, strips bags filled at the side
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00—Independent underground or underwater structures; Retaining walls
    • E02D29/02—Retaining or protecting walls
    • E02D29/0258—Retaining or protecting walls characterised by constructional features
    • E02D29/0291—Retaining or protecting walls characterised by constructional features made up of filled, bag-like elements

Definitions

  • the present invention relates to a method for displaying the performance of construction material consisting of soil or its substitute packed in bags such as sandbags, a construction material whose performance is displayed by the performance display method, and a structure using the construction material. It is. Background art
  • sandbags filled with soil and the like are used not only as embankment reinforcing materials to prevent the collapse of river embankments in the event of a disaster, but also as the main components of structures such as anti-earth pressure structures and soil structures. It is used for foundations and backfills. When used in such structures, the sandbag functions as a support to support the weight of the structure.
  • the present invention has been made to solve such a problem, and the soil or its substitute is determined based on the maximum constraint stress received from the bag when the soil or its substitute packed in a bag and formed into a substantially box shape is used.
  • the compression resistance of the construction material made of the material is determined, and based on the obtained compression resistance, the performance of the compression resistance of the construction material is displayed. It is characterized by.
  • the present invention provides a method of manufacturing a building material comprising the soil or its substitute based on the maximum restraining stress received from the bag when the soil or its substitute packed into a bag and formed into a substantially box shape has a maximum shear strength. It is characterized in that, based on the obtained maximum shear strength, a performance indication regarding the shear resistance of the construction material is made.
  • construction materials consisting of soil or an alternative thereof packed into a bag and formed into a substantially box shape have a compression strength or a maximum shear strength determined by a predetermined procedure. Based on this, a performance indication regarding compression strength or shear strength is made.
  • This performance indication is made, for example, by displaying the obtained compressive strength or maximum shear strength as the ultimate compressive strength or ultimate shear strength, or by multiplying the obtained ultimate compressive strength or ultimate shear strength by a predetermined ratio.
  • the value in which the safety factor is taken into account is indicated as the allowable compressive strength or allowable shear strength.
  • the above maximum restraining stress is obtained from the value of the tensile strength of the cloth material constituting the bag, the molding dimensions of the soil or its substitute, and the internal friction angle of the soil or its substitute, and the compression resistance is as follows: It is determined from the above maximum restraint stress and the forming dimensions of soil or its substitute. Further, the maximum shear strength is determined from the internal friction angle of the soil or its substitute and the maximum constraint stress.
  • the construction material consisting of the bag and the soil or its substitute packed into the bag and formed into a substantially box-like shape has the tensile strength of the bag, the forming dimensions of the soil or its substitute, and its internal friction.
  • the compression resistance and shear resistance are controlled by appropriately selecting the corners, and the performance is indicated by the controlled compression resistance and shear resistance.
  • FIG. 1 is a diagram showing a bag used for construction material according to an embodiment of the present invention, and a state in which the bag is filled with soil.
  • FIG. 2 is a diagram showing a configuration using the construction material shown in FIG.
  • FIG. 6 is a diagram showing an example of a structure obtained.
  • FIG. 1 (a) is a perspective view of a sandbag 1
  • FIG. 1 (b) is a construction material 2 in which the sandbag 1 is packed with soil or its substitute and formed into a substantially box shape.
  • Alternatives that can be packed in the sandbag 1 instead of soil include construction waste and waste for final disposal.
  • the sandbag 1 is a bag made of woven or non-woven fabric.
  • the sandbag 1 is filled with approximately 16 liters of soil, and as shown in FIG. It is molded and the mouth of the bag is closed.
  • FIG. 3C is a three-sided view showing the plane, front and side of the construction material 2.
  • the periphery of the construction material 2 has a half height H protruding in a semi-cylindrical shape.
  • the compressive force F applied to the construction material 2 is supported by a planar pressure receiving portion having a length L and a width B as shown in FIG. You.
  • ⁇ ' ( ⁇ / ⁇ ) ⁇ t an 2 (45 ° + ⁇ Z2) — T / B... (1)
  • H and B are the height H of the construction material 2 described above, and the width B of the pressure receiving part.
  • ⁇ is the internal friction angle of the soil.
  • B and L are the width B and the length L of the pressure receiving portion of the construction material 2 described above.
  • the performance display method of the construction material 935 [KN / m 2 ]... (6)
  • the ultimate compression strength is displayed as 935 [KN / m 2 ].
  • a value obtained by multiplying the obtained ultimate compression resistance 935 [KN / m 2 ] by a predetermined ratio to obtain a safety factor for example, multiplying by 40% to obtain a safety factor of 60% 3 7 4 [KNZm 2 ] is displayed as the allowable compression resistance.
  • the maximum shear strength f generated in the construction material 2 by the maximum effective restraint stress ⁇ 'of the soil in the sandbag 1 is expressed by the following equation.
  • the ultimate shear strength Q s can be calculated based on the maximum shear strength f in the same manner as the ultimate compressive strength Q u. For this reason, according to the method for displaying the performance of construction materials according to the present embodiment, as a performance display relating to the shear resistance of the construction material 2, for example, the ultimate shear resistance Qs calculated based on the maximum shear strength f is displayed. In addition, a value obtained by multiplying the obtained ultimate shear resistance Q s by a predetermined ratio and allowing for a safety factor is displayed as an allowable shear resistance.
  • the performance display of the construction material 2 is performed by the performance display method of the construction material according to the above-described embodiment, when the construction material 2 is used as a support of the structure, the performance of the structure using the construction material 2 is evaluated.
  • the structure can be displayed, and the structure can be evaluated objectively.
  • the human wall 3 reinforces the slope of the slope 4, and since the foundation of such a human wall 3 was conventionally laid with rubble or the like, the bearing capacity of the foundation is objective. could not be evaluated.
  • the construction material 2 can be used not only as a basis for such a structure such as the human wall 3 but also as a main body or backfill of a structure such as an anti-earth pressure structure or an underground structure. Also in such a case, the performance of each construction material 2 can be displayed, so that the performance of the structure can be displayed in the same manner as described above.
  • the maximum effective restraint stress ⁇ ′ is, as shown in the equation (1), a value of the tensile strength of the cloth material constituting the sandbag 1 and the molding dimensions ⁇ , ⁇ of the soil or its substitute. Calculated from the internal friction angle ⁇ of soil or its substitute,
  • Equation (2) it can be obtained from the maximum constraint stress ⁇ 'and the molding dimensions ⁇ and L of soil or its substitute. Further, the maximum shear strength f can be obtained from the internal friction angle ⁇ of the soil or its substitute and the above-mentioned constraint stress ⁇ 'as shown in the equation (7).
  • the construction material 2 consisting of the sandbag 1 and the soil or its substitute packed into the sandbag 1 and formed into a substantially box shape has a tensile strength of the cloth material of the sandbag 1, soil or its
  • the compression resistance Q u and shear resistance Q s are controlled, and the controlled compression resistance Q u and shear resistance are controlled. Its performance is indicated by the Q Qs resistance.
  • the construction material made of soil or its substitute which is packed in a bag and formed into a substantially box shape, is compressed based on the compression strength and shear strength determined by a predetermined procedure.
  • Performance resistance is displayed in terms of shear resistance. For this reason, when the construction material is used as a support for the structure, the performance of the structure using the construction material can be displayed, and the structure can be objectively evaluated. .
  • the construction material consisting of the bag and the soil or its substitute packed into the bag and formed into a substantially box shape has a tensile strength of the bag, a forming dimension of the soil or its substitute, and an internal friction angle.
  • the compression strength and shear strength are controlled, and the performance is indicated by the controlled compression strength and shear strength.

Abstract

Lorsqu'un sac de sable traditionnel est utilisé comme matériau de support pour une structure, il est difficile d'évaluer objectivement la classe de la structure utilisant ce sac. On détermine la limite d'élasticité conventionnelle Qu d'un matériau de construction (2) sur la base de l'effort unitaire σ' effectif maximal fourni par le sac de sable (1) constitué de terre ou de son substitut dans le cas où l'on veut donner à ce sac une forme parallélépipédique, et c'est sur la base de la limite d'élasticité Qu obtenue qu'on est capable d'indiquer la classe fonction de la limite d'élasticité du matériau de construction (2). De plus, une force de cisaillement τf maximale développée par un matériau de construction (2) constitué de terre ou d'un substitut est déterminée sur la base de cet effort unitaire σ' effectif maximal, et c'est sur la base de la force de cisaillement τf maximale obtenue qu'on indique la classe fonction de la limite d'élasticité conventionnelle du cisaillement du matériau de construction (2). Une structure utilisant le matériau de construction (2) comporte un indice de classe tenant compte de la classe telle qu'elle est spécifiée pour le matériau de construction (2).
PCT/JP2001/000497 2000-01-26 2001-01-25 Procede pour indiquer la classe d'un materiau de construction a base de terre ou autre, mise en sac pour resister aux contraintes, et materiau de construction presentant la classe indiquee par le procede WO2001055512A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2000017328A JP3187804B1 (ja) 2000-01-26 2000-01-26 袋で土またはその代替物を拘束補強した性能表示された建設資材およびその建設資材からなる構造体
JP2000-17328 2000-01-26

Publications (1)

Publication Number Publication Date
WO2001055512A1 true WO2001055512A1 (fr) 2001-08-02

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PCT/JP2001/000497 WO2001055512A1 (fr) 2000-01-26 2001-01-25 Procede pour indiquer la classe d'un materiau de construction a base de terre ou autre, mise en sac pour resister aux contraintes, et materiau de construction presentant la classe indiquee par le procede

Country Status (2)

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JP (1) JP3187804B1 (fr)
WO (1) WO2001055512A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007308882A (ja) * 2006-05-16 2007-11-29 Kaneka Corp 軽量盛土構造
KR101776074B1 (ko) * 2014-12-03 2017-09-07 한수동 연료 자화장치

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60154982U (ja) * 1984-03-23 1985-10-16 東レ株式会社 性能表示衣料
JPH0868030A (ja) * 1994-08-30 1996-03-12 Tohoku Kaihatsu Consultant:Kk 連結装置を有する土のう及び該土のうを用いた諸構造 物の構築方法

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60154982U (ja) * 1984-03-23 1985-10-16 東レ株式会社 性能表示衣料
JPH0868030A (ja) * 1994-08-30 1996-03-12 Tohoku Kaihatsu Consultant:Kk 連結装置を有する土のう及び該土のうを用いた諸構造 物の構築方法

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JP3187804B1 (ja) 2001-07-16
JP2001207422A (ja) 2001-08-03

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