US3282054A - Block structure for retaining walls - Google Patents

Block structure for retaining walls Download PDF

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US3282054A
US3282054A US356585A US35658564A US3282054A US 3282054 A US3282054 A US 3282054A US 356585 A US356585 A US 356585A US 35658564 A US35658564 A US 35658564A US 3282054 A US3282054 A US 3282054A
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main body
body portion
cross
blocks
rear face
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Saginor Irving
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    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00Independent underground or underwater structures; Retaining walls
    • E02D29/02Retaining or protecting walls
    • E02D29/0258Retaining or protecting walls characterised by constructional features
    • E02D29/0266Retaining or protecting walls characterised by constructional features made up of preformed elements
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00Independent underground or underwater structures; Retaining walls
    • E02D29/02Retaining or protecting walls
    • E02D29/0225Retaining or protecting walls comprising retention means in the backfill
    • E02D29/0241Retaining or protecting walls comprising retention means in the backfill the retention means being reinforced earth elements

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  • Another object of the ⁇ invention is to provide a prefabricat-ed block structure which will interlock readily with similar struc-tures to pro-duce :a wall of great structural strength.
  • Another object of the invention is to provide a prefabricated block structure which can be utilized by relatively unskilled labor to produce a retaining wall structure without the use of mortar.
  • a further object of the ⁇ invention is to provide a prefabricated block structure having an interlocking configuration when Iused in a retaining wall which allows drainage and Imovements of ⁇ the 'blocks within permissible limits without destroy-ing the integrity of the wall.
  • a pre-cast concrete block structure comprising a main body portion with a rearwardly extending projection which is T shaped in form.
  • the cross-bar of the T shaped projection is integral with the main body portion and the stem member projects rearwardly in a direction perpendicular to the main body portion.
  • the crossebar is located above the center-line of the body portion and serves as a footing for stacking blocks in interlock-ing relationship on top of each other.
  • the projecting stem lmember is embedded in the material being retained and provides an anchoring function which .allows limited movements o fthe 'material being retained without disturbing ⁇ the basic structural interlocking relationship of the blocks in the waill.
  • FIG. l is a perspective View of a prefabricated block constructed i-n accordance with the principles of the invention.
  • FIG. 2 is a side elevation View of a vertical stack of blocks in assembled relationship
  • FIG. 3 is a front elevation view of a section of :a retaining wall constructed of 4the blocks of the present in vention.
  • FIG. l the prefabricated block structure is shown in perspective.
  • the main body portion il of the block is ⁇ a rectangular para-llelepiped which lis shown as being decidedly oblong in shape. it ,should b e understood, however, that the front and rear sides could assume other configurations, and even be square, without departing from the basic principles of the invention.
  • a T shaped projection indicated generally by the numeral 3 is formed integrally with the main body portion l.
  • the T .shaped projection 3 inclu-des a cross-bar member S and a stem member 7.
  • the cross-bar member 5 is formed on the rear face 9 of the main body portion 1.
  • the crossbar member 5 is ⁇ disposed with its longitudinal axis parallel to and somewhat above the -longitudinal axis of the main body portion l.
  • the .cross-bar member 5 is not located centrally of the rear face 9 because such anInventrangement would result in a waste of materials. This will be seen readily when it is observed from FIG. 2 how the blocks are stacked vertically.
  • Movement of the material being retained may produce movement of the ⁇ stem members, but these stem members can move through relatively large distances and .still cause only relatively min-or tilting of the main body vporti-ons, which does not disturb the integrity of lthe wall.
  • the lateral forces of the material being retained against lthe rear faces 23 to 27 are distributed over t-he entire wall surface by reason of the inter-locking relationship of the blocks, thereby -assuring maximum structural stability.
  • each block face will tend to move to the left as viewed in FIG. 2, while the upper .portion of each block will tend to move to the right.
  • Each of these movements is opposed by counter-movements of contiguous blocks thereby resulting in a tightly knit structure which is held together more securely as the force against it is increased.
  • each block provides a direct support for the two blocks directly above it.
  • block 29 is shown supporting7 blocks 31 and 33, which-in turn support blocks 3S and 37 and blocks 37 and 39, respectively.
  • a lower block is strengthened along its length and chances of failure because of vertical shearing are minimized.
  • no mortar is used in the construction, the structure will contain spaces, such as shownat 41 ⁇ and 43, through which water may pass and thereby insure proper and adequate drainage.
  • the simplicity of the block structure of the present invention results in an economically manufactured unit which can be prefabricated in a one-step casting operation.
  • concrete is an excellent choice of materials for the manufacture of this unit, it will be appreciated that other and different materials may work equally as Well, depending upon the material cost and the ultimate strength required.
  • the novel stem an-d interlocking feature of the block .permits a relatively wide range of movement of the material being retained, such las might be produced by freezing and thawing cycles, without affecting the structural ⁇ strength or the integrity of the wall.
  • a Prefabricated block structure for the construction of retaining walls comprising a main body portion,
  • said main body portion being of a rectangular par- ;allepiped configuration having substantially rectangular front and rear faces, an-d a T shaped projection integral with said main body portion, said T shaped projection including a cross-bar member and a stem member projecting rearwardly from said rear face,
  • said main body portion being of a rectangular parallepiped configuration having substantially rectangular front and rear faces, and a T shaped projection integral with said main body portion, said T shaped projection including .a cross-bar member and a stem member projecting rearwardly from said rear face,
  • said cross-bar member being formed on the rear face of said main body portion and extending longitudinally equidistant on either side of the midpoint of said rear face with its longitudinal axis parallel to and 1ocated above the longitudinal axis of said main body portion, the longitudinal extent of said cross-bar member being a substantial portion of the longitudinal extent of said main body portion whereby each block rests upon the cross-bar members of two adjacent supporting blocks located therebeneath to maintain a horizontal alignment of the blocks.

Description

Nov. 1, 1966 l. sAGlNoR BLOCK STRUCTURE FOR RETAINING WALLS Filed April l, 1964 iff'-90 tf- @j T. mw W ATTORNEYS United States Patent Ofice 3,282,054 BLUCK STRUCTURE FOR RETAINING WALLS Irving Saginor, 2655 N. Vermont St., Apt. 302, Arlington, Va. Filed Apr. 1, 1964, Ser. No. 356,585 3 Claims. (Cl. 61-35) This invention rela-tes to a pref-abricated block structure for retaining walls.
IIn the excavating and lling processes encountered in construct-ion work and for the con-trol of natural erosion it is necessary frequently to provide support for large amounts of earth, .sand and stones to prevent lateral displacement. The use of retaining walls is la common eX- .pedient to accomplish this purpose and also to retain other materials such as grain. Various designs for such walls have been proposed in the past. Great structural strength in a retaining wall is a basic requirement because of the tremendous forces to which such a wall may be subjected.
Gravitational forces and constant exposure to rainfall and seasonal freezing and thawing cycles cause the earth to .settle and seek a state of equilibrium. Consequently, it is ldesirable that a retaining wall be pervious to moist-ure and allow water to seep through readily without accumulating lar-ge amounts that would increase the lateral pressure on the wall. The expansion and contraction experienced during `periods of freezing and thawing, tgether with the shifting of forces attributable to normal settling, make it desirable to have a wall structure with sufficient flexibility to allow accommodation to these varying forces within certain permissible limits and still retain its structural inte-grity.
Conventional masonry walls in which mortar serves as a bonding agent do not satisfy the foregoing requirements since these walls are impervious to moisture and have no inherent .flexibility to accommodate for the constantly changing forces which are present. Various dry wall constructions have been proposed previously i-n which mortar is not employed, and, while good drainage is sometimes attained, great skill is required for constructions of this type. The structural strength of many of such walls has not been adequate -to war-rant their widespread use. Also, the cost of these dry walls'has been prohibitive because of the complicated structure involved and the costly manufacturing procedures utilized.
Accordingly, it is an object of this invention to provide a prefabrica-ted block structure for retaining walls which will satisfy the preceding require-ments and overcome the problems presented by prior structures.
Another object of the `invention is to provide a prefabricat-ed block structure which will interlock readily with similar struc-tures to pro-duce :a wall of great structural strength.
Another object of the invention is to provide a prefabricated block structure which can be utilized by relatively unskilled labor to produce a retaining wall structure without the use of mortar.
A further object of the `invention is to provide a prefabricated block structure having an interlocking configuration when Iused in a retaining wall which allows drainage and Imovements of `the 'blocks within permissible limits without destroy-ing the integrity of the wall.
In a preferred embodiment of the invention these features are realized in a pre-cast concrete block structure comprising a main body portion with a rearwardly extending projection which is T shaped in form. The cross-bar of the T shaped projection is integral with the main body portion and the stem member projects rearwardly in a direction perpendicular to the main body portion. The crossebar is located above the center-line of the body portion and serves as a footing for stacking blocks in interlock-ing relationship on top of each other. The projecting stem lmember is embedded in the material being retained and provides an anchoring function which .allows limited movements o fthe 'material being retained without disturbing `the basic structural interlocking relationship of the blocks in the waill.
The foregoing and other objects, features and advantages -of the inve-ntion will be apparent from the following more .particular description of a preferred embodiment of the invention, as illustrated in the accompanying drawings in which:
FIG. l is a perspective View of a prefabricated block constructed i-n accordance with the principles of the invention;
FIG. 2 is a side elevation View of a vertical stack of blocks in assembled relationship; and
FIG. 3 is a front elevation view of a section of :a retaining wall constructed of 4the blocks of the present in vention.
T-he invent-ion will be explained in more detail with reference to the various figures of the drawing. In FIG. l the prefabricated block structure is shown in perspective. The main body portion il of the block is `a rectangular para-llelepiped which lis shown as being decidedly oblong in shape. it ,should b e understood, however, that the front and rear sides could assume other configurations, and even be square, without departing from the basic principles of the invention.
A T shaped projection indicated generally by the numeral 3 is formed integrally with the main body portion l. The T .shaped projection 3 inclu-des a cross-bar member S and a stem member 7. The cross-bar member 5 is formed on the rear face 9 of the main body portion 1. The crossbar member 5 is `disposed with its longitudinal axis parallel to and somewhat above the -longitudinal axis of the main body portion l. The .cross-bar member 5 is not located centrally of the rear face 9 because such an Iarrangement would result in a waste of materials. This will be seen readily when it is observed from FIG. 2 how the blocks are stacked vertically.
FIG. 2 shows a plurality of blocks l1 to l5 in stacked relations-hip as they would appear in a retaining wall struct-ure, rThe material being retained has not been shown in order -to keep the .illustration as simple as possible, but it will be seen readily that `such material would surround the stem members 17 to 2i and be contained by the rezar faces 23 to 27 of blocks ll to 1S. The arrangement of the blocks with the -lower edge of the main body por-tion of one block resting lon the upper surface of the cross-bar member of the block beneath and fitting securely against the rear face of the lower block provides a structure of great strength. Movement of the material being retained may produce movement of the `stem members, but these stem members can move through relatively large distances and .still cause only relatively min-or tilting of the main body vporti-ons, which does not disturb the integrity of lthe wall. The lateral forces of the material being retained against lthe rear faces 23 to 27 are distributed over t-he entire wall surface by reason of the inter-locking relationship of the blocks, thereby -assuring maximum structural stability.-
The manner in which the forces of the material being retained act upon .the wall will be understood from FIG. 2 of the drawings. For example, the block 13 will have forces acting downwardly on the stem member 19 from the downward pressure of the material. The rear face 2.5 of block 13 will also have a lateral force thereagainst from the material with the result .that block 13 will tend to have a clockwise turning moment about an axis located where the stem i9 joins the rear face 25 of the Patented Nov. l, 1956 E3 block 13. Since all of the other blocks are similarly disposed, the same condition will obtain for each of these.
A careful consideration of the composite wall will reveal that the manner in which the blocks interlock causes the turning moments of the individual blocks to work together to preserve the structural integrity of the wall. The lower portion of each block face will tend to move to the left as viewed in FIG. 2, while the upper .portion of each block will tend to move to the right. Each of these movements is opposed by counter-movements of contiguous blocks thereby resulting in a tightly knit structure which is held together more securely as the force against it is increased.
The usual pattern followed in constructing a complete wall is shown in FIG. 3. It will be seen from this illustration that each block provides a direct support for the two blocks directly above it. As an example block 29 is shown supporting7 blocks 31 and 33, which-in turn support blocks 3S and 37 and blocks 37 and 39, respectively. By employing a lower block as a support for two upper blocks the wall is strengthened along its length and chances of failure because of vertical shearing are minimized. 'Since no mortar is used in the construction, the structure will contain spaces, such as shownat 41 `and 43, through which water may pass and thereby insure proper and adequate drainage.
The simplicity of the block structure of the present invention results in an economically manufactured unit which can be prefabricated in a one-step casting operation. Although concrete is an excellent choice of materials for the manufacture of this unit, it will be appreciated that other and different materials may work equally as Well, depending upon the material cost and the ultimate strength required. The novel stem an-d interlocking feature of the block .permits a relatively wide range of movement of the material being retained, such las might be produced by freezing and thawing cycles, without affecting the structural `strength or the integrity of the wall.
-While theinvention has 'been shown and described with particular reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made without departing from the spirit and scope of the invention.
What is claimed is:
1. A Prefabricated block structure for the construction of retaining walls comprising a main body portion,
said main body portion being of a rectangular par- ;allepiped configuration having substantially rectangular front and rear faces, an-d a T shaped projection integral with said main body portion, said T shaped projection including a cross-bar member and a stem member projecting rearwardly from said rear face,
said cross-bar member being formed on the rear face of said main body portion and extending longitudinally equidistant on either side of the midpoint of said rear face with its longitudinal axis parallel to `and located above the longitudinal axis of said main body portion, the longitudinal extent of said cross-bar member being a substantial portion of the longitudinal extent of said main body portion, whereby a plurality of said blocks can be assembly in self-aligning and nesting relationship with each other to form a Wall structure with the cross-bar member of the T shaped projection of each block being of a suicient longitudinal extent to serve as a supporting and aligning base for the blocks disposed above. 2. A retaining wall comprising a plurality of prefabricated block structures arranged in horizontal rows which are superposed vertically, each of said Prefabricated block structures compris- .ing a main body portion,
said main body portion being of a rectangular parallepiped configuration having substantially rectangular front and rear faces, and a T shaped projection integral with said main body portion, said T shaped projection including .a cross-bar member and a stem member projecting rearwardly from said rear face,
said cross-bar member being formed on the rear face of said main body portion and extending longitudinally equidistant on either side of the midpoint of said rear face with its longitudinal axis parallel to and 1ocated above the longitudinal axis of said main body portion, the longitudinal extent of said cross-bar member being a substantial portion of the longitudinal extent of said main body portion whereby each block rests upon the cross-bar members of two adjacent supporting blocks located therebeneath to maintain a horizontal alignment of the blocks.
3. The combination according to claim 2 wherein vthe rear face of each supporting block ts snugly against the front face of the blocks that it supports, whereby said blocks maintain a vertical alignment as well as a horizontal alignment.
References Cited by the Examiner UNITED STATES PATENTS 741,993 10/1903 Anderson 52-504X FOREIGN PATENTS 747,703 1933 Pfanne.
814,666 1937 France.
455,175 o Itaiy.
64,656 1914 switzerland.
CHARLES E. OCONNELL, Primary Examiner.
JACOB SHAPIRO, Examiner,

Claims (1)

  1. 2. A RETAINING WALL COMPRISING A PLURALITY OF PREFABRICATED BLOCK STRUCTURES ARRANGED IN HORIZONTAL ROWS WHICH ARE SUPERPOSED VERTICALLY, EACH OF SAID PREFABRICATED BLOCK STRUCTURES COMPRISING A MAIN BODY PORTION, SAID MAIN BODY PORTION BEING OF A RECTANGULAR PARALLEPIPED CONFIGURATION HAVING SUBSTANTIALLY RECTANGULAR FRONT AND REAR FACES, AND A "T" SHAPED PROJECTION INTEGRAL WITH SAID MAIN BODY PORTION, SAID "T" SHAPED PROJECTION INCLUDING A CROSS-BAR MEMBER AND A STEM MEMBER PROJECTING REARWARDLY FROM SAID REAR FACE, SAID CROSS-BAR MEMBER BEING FORMED ON THE REAR FACE OF SAID MAIN BODY PORTION AND EXTENDING LONGITUDINALLY EQUIDISTANT ON EITHER SIDE OF THE MIDPOINT OF SAID REAR FACE WITH ITS LOGITUDINAL AXIS PARALLEL TO AND LOCATED ABOVE THE LONGITUDINAL AXIS OF SAID MAIN BODY PORTION, THE LONGITUDINAL EXTENT OF SAID CROSS-BAR MEMBER BEING A SUBSTANTIAL PORTION OF THE LONGITUDINAL EXTENT OF SAID MAIN BODY PORTION WHEREBY EACH BLOCK RESTS UPON THE CROSS-BAR MEMBERS OF TWO ADJACENT SUPPORTING BLOCKS LOCATED THEREBENEATH TO MAINTAIN A HORIZONTAL ALIGNMENT OF THE BLOCKS.
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Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3464211A (en) * 1967-03-08 1969-09-02 Magne A Andresen Modular structure for restraining walls
US3686873A (en) * 1969-08-14 1972-08-29 Henri C Vidal Constructional works
US4067166A (en) * 1975-06-12 1978-01-10 Sheahan Edmund C Retaining block
US4479740A (en) * 1979-08-21 1984-10-30 Paul A. Kakuris Erosion control device and method of making and installing same
US4564316A (en) * 1982-11-08 1986-01-14 Hunziker Kenneth J Face panel system
EP0343112A1 (en) * 1988-05-19 1989-11-23 Steiner Silidur AG Brick
US4978247A (en) * 1986-05-05 1990-12-18 Lenson Walter J Erosion control device
EP0429379A1 (en) * 1989-11-24 1991-05-29 Société en Nom Collectif : SABLA Retaining structure and method of construction of a retaining structure
US5221157A (en) * 1990-12-28 1993-06-22 Prestedge Gordon K Revetments and units for use in constructing revetments
AU650772B2 (en) * 1992-08-11 1994-06-30 Gordon Kendall Prestedge Revetments and units for use in constructing revetments
US5688078A (en) * 1991-11-26 1997-11-18 Westblock Products, Inc. Interlocking retaining walls blocks and system
US20100158617A1 (en) * 2008-12-19 2010-06-24 Wesley A. Mahan Erosion control systems and methods
USD732699S1 (en) * 2013-05-20 2015-06-23 Structure Sight LLC Modular precast concrete unit for a storm water detention or retention system

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US741993A (en) * 1903-01-14 1903-10-20 David Wiley Anderson Brick tile.
CH64656A (en) * 1913-04-18 1914-04-16 Killias A Chr Protective covering for embankments
FR747703A (en) * 1932-12-19 1933-06-22 Process for establishing coatings for the walls of galleries, underground passages and coating obtained by this process
FR814666A (en) * 1936-12-07 1937-06-28 earthwork retaining element

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US741993A (en) * 1903-01-14 1903-10-20 David Wiley Anderson Brick tile.
CH64656A (en) * 1913-04-18 1914-04-16 Killias A Chr Protective covering for embankments
FR747703A (en) * 1932-12-19 1933-06-22 Process for establishing coatings for the walls of galleries, underground passages and coating obtained by this process
FR814666A (en) * 1936-12-07 1937-06-28 earthwork retaining element

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3464211A (en) * 1967-03-08 1969-09-02 Magne A Andresen Modular structure for restraining walls
US3686873A (en) * 1969-08-14 1972-08-29 Henri C Vidal Constructional works
US4067166A (en) * 1975-06-12 1978-01-10 Sheahan Edmund C Retaining block
US4479740A (en) * 1979-08-21 1984-10-30 Paul A. Kakuris Erosion control device and method of making and installing same
US4564316A (en) * 1982-11-08 1986-01-14 Hunziker Kenneth J Face panel system
US4978247A (en) * 1986-05-05 1990-12-18 Lenson Walter J Erosion control device
EP0343112A1 (en) * 1988-05-19 1989-11-23 Steiner Silidur AG Brick
EP0429379A1 (en) * 1989-11-24 1991-05-29 Société en Nom Collectif : SABLA Retaining structure and method of construction of a retaining structure
FR2655074A1 (en) * 1989-11-24 1991-05-31 Sabla Sa BUILDING ELEMENT FOR CONSTITUTING A SUPPORT WORK, METHOD FOR IMPLEMENTING THE SAME AND OBTAINING THE SUPPORT OBTAINED.
US5221157A (en) * 1990-12-28 1993-06-22 Prestedge Gordon K Revetments and units for use in constructing revetments
US5688078A (en) * 1991-11-26 1997-11-18 Westblock Products, Inc. Interlocking retaining walls blocks and system
AU650772B2 (en) * 1992-08-11 1994-06-30 Gordon Kendall Prestedge Revetments and units for use in constructing revetments
US20100158617A1 (en) * 2008-12-19 2010-06-24 Wesley A. Mahan Erosion control systems and methods
US8052348B2 (en) * 2008-12-19 2011-11-08 Wesley A. Mahan Erosion control system
USD732699S1 (en) * 2013-05-20 2015-06-23 Structure Sight LLC Modular precast concrete unit for a storm water detention or retention system

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