|Número de publicación||US7832152 B2|
|Tipo de publicación||Concesión|
|Número de solicitud||US 12/414,859|
|Fecha de publicación||16 Nov 2010|
|Fecha de presentación||31 Mar 2009|
|Fecha de prioridad||31 Mar 2009|
|También publicado como||US20100247246|
|Número de publicación||12414859, 414859, US 7832152 B2, US 7832152B2, US-B2-7832152, US7832152 B2, US7832152B2|
|Inventores||Timothy M. Smith|
|Cesionario original||State Contracting & Engineering Corporation|
|Exportar cita||BiBTeX, EndNote, RefMan|
|Citas de patentes (18), Clasificaciones (13), Eventos legales (2)|
|Enlaces externos: USPTO, Cesión de USPTO, Espacenet|
The invention disclosed broadly relates to the field of commercial construction of vertical highway barriers, and more particularly relates to the alignment of posts within piles or foundations so as to accommodate panels or portions of highway barriers.
Various types of vertical highway barriers exist. One type of barrier, a sound wall, is used for stopping or hindering highway noise from polluting neighboring areas. A sound wall comprises rectangular planar sections, referred to as sound wall panels, which are coupled or adjoined together at posts that are affixed to the ground. Each post includes a groove on each side that faces a sound wall panel. The left side of a panel is slid into the rightward-facing groove of a first post and the right side of the panel is slid into the leftward-facing groove of a second post. In this manner, the panel is held up vertically by the first and second posts. Next, the left side of a second panel is slid into the rightward-facing groove of the second post, and so on and so forth. Thus, each post is coupled to and provides support for two separate panels of a sound wall for a highway. For this reason, each panel must fit snugly between two posts. Therefore, each post must be aligned to within a very small margin of error so as to meet this criterion.
Various factors can hinder the adequate alignment of posts required to accommodate panels between them. Human error and the limitations of surveying equipment may result in the inadequate alignment of a post. Alternatively, certain types of ground or soil can be particularly problematic, such as sand, loose aggregate or ground with a high liquid content, such as swamps, peat bogs and marshes. In such ground conditions problems arise from the inadequate support for the post upon insertion. The use of a pile, which typically comprises a heavy cylindrical object placed in the ground and serving as a support or foundation for the post, can mitigate this problem.
A pile may comprise a metal cylindrical object, such as a pipe, that is driven into the ground with a pile driver of the impact or vibratory type. Alternatively, a grout pile may be poured into a hole drilled into the ground. Such an auger cast pile is installed by rotating a hollow shaft auger (or large screw) into the ground to a specified depth. Grout is then pumped under pressure through the hollow shaft as the auger is slowly withdrawn. The resulting grout column hardens and forms an auger cast pile. A post is then coupled with the pile in some manner, typically by inserting the post into an orifice in the pile or into the pile itself. Alignment of the post within the pile, however, can be difficult.
Due to ground instability, equipment limitations or shifting due to freeze/thaw cycles, the pile may shift, lean or fall off alignment, since it is not anchored in a firm base. In this case, if the post is coupled collinearly with the pile, then the post will be misaligned by the same amount. Further, even if the pile is aligned correctly, the bore within the pile that receives the post may be off-alignment. In this case, when the post is inserted within the bore, then the post will be misaligned by the same amount. Additionally, the width of the bore within the pile that receives the post may be significantly larger than the width of the post, thereby producing a significant amount of play when the post is inserted into the bore. This may further cause the post to be misaligned.
Further, misalignment of one post can propagate to other posts. Because each panel is nearly rectangular, sequential posts must be nearly parallel. For example, if a first post is slightly misaligned toward a panel, then the post supporting the other end of the same panel must be slightly misaligned away from the panel. Thus, a slight misalignment of a first post results in the forced misalignment of a second post.
One approach to the problem of alignment of posts in this situation involves manually checking the post before or during insertion of a panel coupled to that post. Then, using a crane or other heavy equipment, the post is moved into a position of alignment. Often, many attempts must be made until alignment is reached. This approach, however, is cumbersome, labor-intensive and time consuming to execute. Thus, the above approach does not provide an easy and quick means of aligning a post within an already existing pile or foundation so as to accommodate a sound wall panel.
Another approach to the problem of alignment of posts in this situation involves the use of a large template that rests on the ground to support and align the post until the pile grout hardens. The template, however, requires considerable space and is problematic in soft ground. Further, these templates cannot be used in water without temporary support piles.
Therefore, a need exists to overcome the problems with the prior art as discussed above, and particularly for a more efficient way to adequately align a post that is placed within a pile or foundation so as to accommodate a sound wall panel.
Briefly, according to an embodiment of the present invention, an apparatus for adjusting a position of a post within a pile is disclosed. The apparatus includes a pile including a vertical bore into which a post is inserted. The apparatus further includes a set of three screws spaced evenly around an exterior circumference of the post near the bottom of the post, wherein at least one screw contacts an interior circumference of the bore so as to adjust a position of the post within the bore.
In another embodiment of the present invention, a system for adjusting a position of a post within a pile is disclosed. The system includes a post including a vertical groove on one side and a vertical groove on another side and a pile including a vertical bore into which the post is inserted. The system further includes a set of three screws spaced evenly around an exterior circumference of the post near a bottom of the post, wherein at least one screw contacts an interior circumference of the bore so as to adjust a position of the post within the bore.
In another embodiment of the present invention, an alternative system for adjusting a position of a post within a pile is disclosed. The system includes a pile including a vertical bore into which a post is inserted and a set of three screws spaced evenly around an exterior circumference of the post near a bottom of the post, wherein at least one screw contacts an interior circumference of the bore so as to adjust a position of the post within the bore. The system further includes a collar for fastening the post to the pile at an opening of the bore.
The foregoing and other features and advantages of the present invention will be apparent from the following more particular description of the preferred embodiments of the invention, as illustrated in the accompanying drawings.
The subject matter, which is regarded as the invention, is particularly pointed out and distinctly claimed in the claims at the conclusion of the specification. The foregoing and other features and also the advantages of the invention will be apparent from the following detailed description taken in conjunction with the accompanying drawings. Additionally, the left-most digit of a reference number identifies the drawing in which the reference number first appears.
The present invention provides a system for adjusting a position of a post within a pile. The system includes a post including a vertical groove on one side and a vertical groove on another side for accommodating a wall panel. The system also includes a pile including a vertical bore into which the post is inserted. The system also includes a set of three screws spaced evenly around an exterior circumference of the post near a bottom of the post, wherein at least one screw contacts an interior circumference of the bore so as to adjust a position of the post within the bore. The system further includes a collar for fastening the post to the pile at an opening of the bore.
At the bottom of the post 102 is located a set of three horizontal screws 112 spaced evenly around an exterior circumference of the post 102, wherein each screw 112 extends from a center of the post 102 to an exterior circumference of the post 102 and wherein at least one screw 112 contacts an interior circumference of the bore 106 so as to adjust a position of the post 102. More detail on the three screws 112 is provided below.
In one embodiment of the present invention, about 5 feet of the bottom end 110 of the post 102 is inserted into the bore 106. In another embodiment of the present invention, a crane or similar machine holds the top end 108 of the post 102 and lowers it into the bore 106. As the bottom end 110 of the post 102 is inserted into the bore 106, the interior circumference of the bore 106 contacts the distal most portions of the three screws 112, which dictate the position of the post 102 within the pile 104. After insertion of the post 102 into the pile 104, the cavity between the post 102 and the pile 104 is filled with concrete or grout.
Not shown in
In one embodiment of the present invention, the pile 104 is a cylindrical metallic pipe that is driven into the ground using a pile driver of the impact or vibratory type. Sample dimensions of such a metallic cylindrical pipe include 25 feet of length, 32 inches of diameter, and ⅜ inch of pipe wall thickness.
Collar 600 comprises two wooden planks 602, 604 (such as 4 inch by 6 inch timber of three to six feet long) arranged vertically on either side of the post 102 and resting on the pile 104. Collar 600 also includes two coil rods 610, 612 (such as ¾ inch in diameter) arranged horizontally on either top of and below the post 102. Coil rod 610 intersects with and extends through holes along the top of planks 602, 604. Coil rod 610 is secured to the planks 602, 604 with bolts on each end that may include washers. Likewise, coil rod 612 intersects with and extends through holes along the bottom of planks 602, 604. Coil rod 612 is secured to the planks 602, 604 with bolts on each end that may include washers.
Although specific embodiments of the invention have been disclosed, those having ordinary skill in the art will understand that changes can be made to the specific embodiments without departing from the spirit and scope of the invention. The scope of the invention is not to be restricted, therefore, to the specific embodiments. Furthermore, it is intended that the appended claims cover any and all such applications, modifications, and embodiments within the scope of the present invention.
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|Clasificación de EE.UU.||52/126.5, 52/126.1, 52/238.1, 52/849, 52/844, 52/243.1, 52/126.3, 52/854, 52/843|
|Clasificación internacional||E04C3/00, E04B9/00|
|25 Jun 2009||AS||Assignment|
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:SMITH, TIMOTHY M.;REEL/FRAME:022875/0825
Effective date: 20090331
Owner name: STATE CONTRACTING & ENGINEERING CORP., FLORIDA
|12 May 2014||FPAY||Fee payment|
Year of fee payment: 4