GB2454488A - Block panel modules and a tieback wall constructed therefrom - Google Patents

Block panel modules and a tieback wall constructed therefrom Download PDF

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Publication number
GB2454488A
GB2454488A GB0721905A GB0721905A GB2454488A GB 2454488 A GB2454488 A GB 2454488A GB 0721905 A GB0721905 A GB 0721905A GB 0721905 A GB0721905 A GB 0721905A GB 2454488 A GB2454488 A GB 2454488A
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GB
United Kingdom
Prior art keywords
block panel
block
tieback
octagonal
members
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.)
Withdrawn
Application number
GB0721905A
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GB0721905D0 (en
Inventor
Ka Keong Taw
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ENHANCED MAN
Original Assignee
ENHANCED MAN
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 ENHANCED MAN filed Critical ENHANCED MAN
Priority to GB0721905A priority Critical patent/GB2454488A/en
Publication of GB0721905D0 publication Critical patent/GB0721905D0/en
Publication of GB2454488A publication Critical patent/GB2454488A/en
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • E02D29/0225—Retaining or protecting walls comprising retention means in the backfill
    • E02D29/0241—Retaining or protecting walls comprising retention means in the backfill the retention means being reinforced earth elements
    • 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
    • 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
    • E02D29/0225—Retaining or protecting walls comprising retention means in the backfill
    • 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
    • E02D29/025—Retaining or protecting walls made up of similar modular elements stacked without mortar

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  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Retaining Walls (AREA)

Abstract

The present invention relates to a block panel module 10a and comprises a substantially octagonal shaped block panel 18a and at least four horizontal ladder-like strut members 11a installed to its back towards the top edge, the bottom edge, and two side edges. Each horizontal ladder-like strut member 11a preferably comprises two elongate members 13a, a plurality of intermediate cross members 14a between the elongate members 13a and an end rectangular block element 15a. A vertical alignment bar 16a is preferably integrally disposed at the back of the block panel 18a towards the top and bottom edges. These vertical alignment bars 16a help to align adjacent block panel modules 10a when they are installed one on top of another. To complete a tieback wall, substantially half-octagonal block panel modules (20 figure 5a) may also be employed along the top edge, the bottom edge and the side edges of the wall. Substantially quarter-octagonal block panel modules (30 figure 5a) may also be employed at the four corners of the wall. A later embodiment relates to a tieback wall constructed from courses of said block panel modules.

Description

BLOCK PANEL MODULES AND A TIEBACK
WALL CONSTRUCTED THEREFROM
TECHNICAL FIELD
The preséñt invention relates generally to tieback walls or retaining walls supported by ties anchored to firm ground. It relates specifically to block panel modules comprising block panels with horizontal ladder-like strut members, and a tieback wall constructed from courses of such block panel modules.
BACKGROUND ART
Retaining walls are frequently used to hold back earth and maintain a difference in the elevation of ground surface. The earth on the high side is called the backfill and usually includes natural soil. Most retaining walls are free standing. A retaining wall is proportioned so that the weight of the wall plus a part of the backfill is adequate to counterbalance the moment exerted by the earth pressure. Additionally, there exist other retaining structures that are supported at various points along the height of the retaining wall. Walls of basements and underground structures are frequently supported at the top.
Tieback walls are retaining walls supported by ties anchored to firm ground. Tieback walls V provide erosion protection and stability to cut slopes and fill embankments such as along the seashores, rivers and streams. These tieback walls also form part of landscaping features in land development. Malaysian Patent Number MY-103486-A discloses earth structures. An earth structure has a facing formed of a plurality of laterally spaced support members, each connected at top and bottom to a pair of elongate stabilizing elements extending rearwardly into an earth mass. A mesh cover spans the spacing between the support members. The support members each consist of a C-shaped strap having a front part and integral lower and upper extensions. The mesh cover is also generally C-shaped, having a front portion and integral lower and upper rear projections. These projections act to stiffen the cover against forward movement under earth pressure.
Malaysian Patent Number MY-I 10768-A discloses a wall surface structure of reinforced earth structure. A revetment comprises of nesting, interlocking, building blocks and means to adjust each block between backfihling operations. Identical 1-shaped building blocks nest vertically and horizontally. Locking pins interlock the opposite sides of the T-caps of I ENHANCOMW4U ck.- (1W) LTD CompanyN 05963228 ( 2 the blocks and hold the blocks in place. Channel-shaped brackets are secured to the back faces of the blocks and adjustable anchor members are secured to the channel-shaped brackets. Adjusting the length of each anchor member alters inclination to the vertical of each block as required. After proper alignment of the blocks by anchor member adjustment, the anchor members are embedded and secured in place by backfill which is then compacted, such as by rolling or by other stateofLtheart means.
Malaysian Patent Number MY-110930-A discloses an earth retaining wall system which comprises a surface body positioned substantially upright to the ground and contains a mass of backfill or earth characterized in that a compressible layer of material is introduced between the inner face of the surface body at the backfill material or earth. The main disadvantage of this prior art is that the surface body is relatively large, therefore increasing the difficulty of site manoeuvrability.
In order to facilitate easy construction of tieback wall on site, a modular approach is often adopted in which the tieback wall is constructed from block pane] modules. Each block panel module comprises a block panel with horizontal ladder-like strut members. Each horizontal ladder-like strut member comprises two elongate members, a plurality of intermediate cross members between the two elongate members and an end rectangular block element. These block panel modules are manually stacked on site, sometimes on difficult sites where heavy machinery is unable to access.
SUMMARY OF THE INVENTION
A primary object of the present invention is to provide improvements to the way of constructing a tieback wall.
According to the teaching of the present invention, a tieback wall is formed when a plurality of block panel modules are stacked in courses. The combination of block panels and ladder-like Strut members with the weight of. the engineering fill behind the tieback wall creates a natural self-gravity reinforced mass soil that holds the slope back and giving a permanent solution to long-term stability of the slope.
According to one aspect of the present invention, each block panel module comprises a block panel with horizontal ladder-like strut members. The block panels can be substantially octagonal, substantially half-octagonal and substantially quarter-octagonal in I ENlt*iIEDMARAGEMENT Isj. .CcmpanyNGOS9G3fl8 LcflOONNW2l$P. 3.
shapes. In the case of a substantially octagonal block panel, four horizontal ladder-like strut members are installed to the back of the block panel towards its top edge, its bottom edge, and two side edges. The horizontal ladder-like strut members will enhance the rigidity and stability of the tieback wall subsequently formed. Each horizontal ladder-like strut member comprises two elongate members, a plurality of intermediate cross members between the two elongate members and an end rectangular block element. One end of each elongate member of the ladder-like strut member is suitably bolted to mounting means On the back of the block panel at the four locations mentioned above. The other end of each elongate member making up the horizontal ladder-like strut member is suitably attached with the rectangular block element.
The elongate and cross members of the ladder-like strut members can take the form of round bars, angle bars and a combination thereof. The shape of the elongate and cross members essentially determines the first and second designs of the ladder-like strut members according to the present invention. The main concept behind the present invention remains essentially the same, despite different shapes of the block panels and ladder-like strut members.
A vertical alignment bar each is integrally disposed at the back of the substantially octagonal block panel towards the top and bottom edges. These two vertical alignment bars help to align adjacent block panel modules when they are installed one on top of another.
To facilitate quick installation, at least two edges of the block panels are formed with protrusions, whereas at least other two edges are formed with depressions, so that the protrusions and depressions of adjacent block panels match and fit one another when the block panel modules are stacked in courses.
In the case of a substantially half-octagonal block panel, at least one horizontal ladder-like strut member is installed at its back. The exact location of this strut member can vary.
In the case of a substantially quarter-octagonal block panel, at least one horizontal ladder-like strut member is installed at its back. The exact location of this strut member can vary.
The above primaiy object and other objects will become evident following the subsequent
* 30 disclosure in this specification.
U L I ENKNICEDMANAGBI4T (UK) LID nn C405%3 * . rr losDoNmvZiBP
I
BRIEF DESCRIPTION OF THE DRAWINGS
Block panel modules comprising block panels with horizontal ladder-like strut members * and a tieback wall constructed therefrom will now be described, by way of examples only, with reference to the accompanying drawings: -Figure I is a front view in perspective of a block panel module comprising a plain substantially octagonal block panel installed with a first design of horizontal ladder-like strut members made from angle bars.
Figure 2 is a front view in perspective of a block panel module comprising a rib-faced substantially octagonal block panel installed with a second design of horizontal ladder-like strut members made from round bars.
Figure 3a is a back view in perspective of the block panel module as shown in Figure 1.
Figure 3b is a top view of the block panel module as shown in Figure 1.
Figure 3c is a back view in perspective of the block panel as shown in Figure 1, cast with a plurality of mounting means.
Figure 4a is a back view in perspective of the block panel module as shown in Figure 2.
Figure 4b shows how two mounting means on the back of the block panel are employed to engage one end of each elongate member of the ladder-like strut member as shown in Figure 4a.
Figure 4c shows how the other ends of the elongate members as shown in Figure 4a are attached with a rectangular block element.
Figure 5a is a front view of a partial tieback wall constructed with a plurality of plain block panel modules comprising block panels of different shapes.
Figure 5b is a back view in perspective of the tieback wall as shown in Figure 5a, showing a plurality of horizontal ladder-like strut members made from angle bars.
Figure 6a is a front view in perspective of a substantially half-octagonal block panel module comprising a plain substantially half-octagonal block panel installed with one horizontal ladder-like strut member made from angle bars.
t ENHANcEDMAMGIENT (UK) LID I. CompanyNO5963228 IONOONNW2IBP Figure 6b is a back view in perspective of the substantially half-octagonal block panel module as shown in Figure 6a.
DETAILED DESCRIPTION
For the sake of clarity, same numerals are used to denote same components. Where there is a need to differentiate the same components in different designs, appropriate suffices "a" and "b" are used after the respective numerals.
Two designs of substantially octagonal block panel modules (lOa, lOb) made in accordance to the present invention are shown in Figures 1 and 2. In Figure 1, the face of a block panel (18a) is plain, whereas in Figure 2, the face of the block panel (18b) is ribbed. The face of the block panel (18a) is plain when the face is coated with a layer of cement. The face of the block panel (18b) is known as ribbed-face when the face is installed with vertical ribs * -made from cement. Four horizontal ladder-like strut members (11 a, 11 b) are installed to the back of each block panel (18a, 18b) towards the top edge, the bottom edge, and two side edges of the block panel (18a, lSb).
Each ladder-like strut member (11) generally comprises two elongate members (13), a plurality of intermediate cross members (14) between the elongate members (13) and an end rectangular block element (15). There are two designs of the horizontal ladder-like * . strut members (I la, 1 lb). In Figure 1, the elongate and cross members (13a, 14a (as * shown in Figure 3a)) are angle bars, which are suitably bolted or riveted together. In Figure 2, the elongate and cross members (13b, 14b) are round bars, which are suitably welded together. It is also important to note that the elongate members (13) are integrally constructed with intermediate cross members (14) to form a ladder-like strut member, in which the configuration will enhance the rigidity and stability of the tieback wall subsequently formed.
Figures 3a, 3b and 3c explain the horizontal ladder-like strut members (1 Ia) made from angle bars in more detail. Figure 3a shows the back perspective view of the substantially octagonal block panel (1 8a) installed with four horizontal ladder-like strut members (11 a).
As seen in Figure 3c, eight short angle plates are pre-cast to the back of the block panel (18a) towards the top edge, the bottom edge and two side edges, to serve as mdunting means (12a). Each free end of the mounting means (12a) is bolted with nut to one end of each of the elongate members (13a) at the four locations mentioned above. The * ENHANcED MANMEM9T (UK) LTD L,CompnyNo.O5963Z28 * . cPPuc4,r LONDON NW2iBP intermediate cross members (1 4a) are attached, by bolting or riveting, to the two parallel elongate members (1 3a), forming a ladder-like strut member. The other ends of the elongate members (13a) are attached with a rectangular block element (1 5a). The fitting technology is well known.
Figures 4a, 4b and 4c explain the horizontal ladder-like strut members (11 b) made from round bars in more detail. As seen in Figure 4a, four horizontal ladder-like strut members (II b) are installed to the back of the substantially octagonal block panel (1 8b). Figure 4b illustrates how two mounting means (l2b) on the back of the block panel (18b) are employed to engage one end of each elongate member (13b) of the ladder-like strut member (11 b). Figure 4c illustrates how a rectangular block element (1 Sb) is attached to the other ends of the elongate members (1 3b). The fitting technology is well known.
Figures 5a and Sb illustrate how a plurality of plain substantially octagonal, substantially half-octagonal and substantially quarter-octagonal block panel modules (10, 20, 30) are being stacked one on top of another forming a partial tieback wall structure. To facilitate quick installation, at least two edges of the substantially octagonal block panels (1 8a) are formed with protrusions, whereas at least other two edges are formed with depressions, so that the protrusions and depressions of adjacent block panels (18a) match and fit one another, when the block panel modules (10) are stacked in courses. Adjacent edges of substantially half-octagonal and quarter-octagonal block panel modules (20, 30) are correspondingly contoured to match and fit the corresponding edges of the substantially octagonal block panel modules (10).
A vertical alignment bar (16) each is integrally disposed at the back of the substantially octagonal block panel (18) towards the top and bottom edges. These vertical alignment bars (16) help to align adjacent block panel modules (10) when they are installed one on top of another.
To complete a tieback wall, substantially half-octagonal block panel modules (20) are also employed along the top edge, the bottom edge and the side edges of the wall. Figures 6a and 6b show a substantially half-octagonal block panel module (20) to be employed along the bottom edge.of the wall. Substantially quarteroctagonaj block panel modules (30) at four corners of the wall are needed to complete the tieback wall. At least one horizontal ladder-like strut member (11) is installed to the back of the substantially half-octagonal or ENHANcED MWGEMDfl (UK) LTD Company NQ 05963228 quarter-octagonal block panel modules (20, 30). The exact location of this strut member can vary. The substantially half-octagonal and quarter-octagonal block panel modules (20, 30) can be considered as variations of the substantially octagonal block panel module (10).
It is important to note that a plurality of stabilising means (17), as shown in Figure 5b, can be installed to connect adjacent elongate members (13) of two horizontal ladder-like Strut members (11) of two adjacent block panel modules (10). The use of these stabilising means (17) further enhances the rigidity and stability of the tieback wall subsequently formed.
* 7 -k ENHANaDMWMEJT (UK)LTD oppj Corpp 63228

Claims (10)

  1. ( CLAIMS 1) A block panel module (10) for use in a tieback wall formed from courses of block panel modules (10) is characterized in which the block panel module (10) comprises a block panel (18) and a plurality of ladder-like strut members (11); the block panel (18) is substantially octagonal in shape; and at least four ladder-like strut members (11) are horizontally installed at the back of each block panel (18) towards the top edge, the bottom edge, and two side edges; whereby each block panel module (10) is held in position when backfill soil is deposited at the back of the block panels (18) and the horizontal ladder-like strut members (II) are embedded in the backfill soil as tieback elements.
  2. 2) A block panel module (10) as in Claim 1 in which the block panel modules (10) include substantially half-octagonal block panel modules (20) which are employed along the top, the bottom and the side edges of the tieback wall, and each substantially half-octagonal block panel is installed with at least one horizontal ladder-like strut member (11) at its back.
  3. 3) A block panel module (10) as in Claim I in which the block pane! modules (10) include substantially quarter-octagonal block panel modules (30) which are employed at four corners of the tieback wall, and each substantially quarter-octagonal block panel is installed with at least one horizontal ladder-like strut member (II) at its back.
  4. 4) A block panel module (10) as in Claim I in which each horizontal ladder-like strut member (11) comprises two elongate members (13), a plurality of intermediate cross members (14) between the elongate members (13) and an end rectangular block element (15).
  5. 5) A block panel module (lOa) as in Claim 4 in which theelongate and cross members (13a, 14a) of the horizontal ladder-like strut member (1 la) are made from angle bars.
  6. 6) A block panel module (lOb) as in Claim 4 in which the elongate and cross members (I 3b, I 4b) of the horizontal ladder-like strut member (11 b) are made from round bars.
  7. 7) A block panel module (10) as in Claim 1 in which at least two edges of each block panel (18) are formed with protrusions, whereas at least other two edges are formed a ENANaowjrJfl (UK) LTD a nI Company Wa O596328 t1' LONDOHNW2tBP with depressions, whereby the protrusions and depressions of adjacent block panels (18) match and fit one another when the block panel modules (10) are stacked in courses.
  8. 8) A block panel module (10) as in Claim I in which a vertical alignment bar (16) each is integrally disposed at the back of the block panel (18) towards the top and bottom edges, whereby these vertical alignment bars (16) help to align adjacent block panel modules (10) when they are installed one on top of another.
  9. 9) A block panel module (10) as in Claim 1 in which a plurality of stabilising means (17) is installed to connect adjacent elongate members (13) of two horizontal ladder-like strut members (11) of two adjacent block panel modules (10), whereby the use of these stabilising means (17) further enhances the rigidity and stability of the tieback wall subsequently formed.
  10. 10) A tieback wall, constructed from courses of block panel modules (10, 20, 30) comprising block panels and tieback elements, is characterized in which the majority of the block panels (18) are substantially octagonal in shape, installed with at least four horizontal ladder-like strut members (11) at their back as tieback elements; a plurality of substantially half-octagonal block panels, installed with at least one horizontal ladder-like strut member (11) at their back as tieback elements, is employed along the bottom, top and side edges of the tieback wall; and four substantially quarter-octagonal block panels, installed with at least one horizontal ladder-like strut member (11) at their back as tieback elements, are employed at four corners of the tieback wall; whereby the block panel modules (10, 20, 30) are held in position when backfill soil is deposited at the back of the block panels and the horizontal ladder-like strut members (11) are embedded in the backfill soil as tieback elements.
    0 1 ENHANcEOMANAGEMENT 1 (UK)LID I I CcmpanyN 05963228 COUIt...V I.ONOONNW2IBP
GB0721905A 2007-11-07 2007-11-07 Block panel modules and a tieback wall constructed therefrom Withdrawn GB2454488A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0721905A GB2454488A (en) 2007-11-07 2007-11-07 Block panel modules and a tieback wall constructed therefrom

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0721905A GB2454488A (en) 2007-11-07 2007-11-07 Block panel modules and a tieback wall constructed therefrom

Publications (2)

Publication Number Publication Date
GB0721905D0 GB0721905D0 (en) 2007-12-19
GB2454488A true GB2454488A (en) 2009-05-13

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Family Applications (1)

Application Number Title Priority Date Filing Date
GB0721905A Withdrawn GB2454488A (en) 2007-11-07 2007-11-07 Block panel modules and a tieback wall constructed therefrom

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108166524A (en) * 2018-01-23 2018-06-15 湖南工业大学 Administer a wide range of, engineering method of tall earth fill and its thin-walled box type retaining wall
CN115434336A (en) * 2022-09-29 2022-12-06 中国二十二冶集团有限公司 Underground engineering backfill construction method

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5259704A (en) * 1990-11-08 1993-11-09 Tricon Precast, Inc. Mechanically stabilized earth system and method of making same
US20060236617A1 (en) * 2005-04-26 2006-10-26 Shih-Yin Chen Latticed net stretching and fixing structure

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5259704A (en) * 1990-11-08 1993-11-09 Tricon Precast, Inc. Mechanically stabilized earth system and method of making same
US20060236617A1 (en) * 2005-04-26 2006-10-26 Shih-Yin Chen Latticed net stretching and fixing structure

Also Published As

Publication number Publication date
GB0721905D0 (en) 2007-12-19

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