JPS6117073Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a pile driving guide jig, and more specifically, to a guide jig for aligning and driving a large number of piles or steel sheet piles along a predetermined driving normal line. .

Conventionally, when driving a large number of piles, steel sheet piles, and other parts to be driven, there was no appropriate guide jig, and the work was done by simply positioning the parts by visual measurement. In general, the positioning is troublesome and it is not always possible to accurately align the parts to be driven.

SUMMARY OF THE INVENTION In view of the above-mentioned drawbacks of the conventional technology, the object of the present invention is to provide a guide jig that can correctly align and efficiently drive a member to be driven by an extremely simple operation. be.

Next, an embodiment of the present invention will be described in detail with reference to FIGS. A guide jig for aligning and driving in a chain of rows.
It is made of a flat plate material, and is symmetrical about the center line C, as shown in the plan view of FIG. 1, and is formed in a so-called horizontal T-shape. 2 is the guide part of the guide jig 1;
The corresponding part of the T-shaped trunk is formed into a rectangular shape, and on both sides (both the upper and lower sides when looking at FIG. 1), there are linear guide surfaces 3, 3 parallel to the driving normal line N, N.
It is equipped with However, in this example, the guide section 2
Of these, a rectangular notch 4 is formed in the right half as viewed in FIG. 1 for the purpose of weight reduction.

Next, reference numeral 5 denotes a driving part for driving the steel sheet pile P while holding it parallel to the earth auger E, and there is a communication part between the guide part 2 and the guide part 2 on both the left and right inner sides of the head of the guide jig 1. 6.
Moreover, it is necessary to position the steel sheet piles P to P by vertically vertically alternating in opposite directions with respect to the driving normal N, and by sequentially engaging adjacent flange edges to align them in a chain. The driving part 5 and the communication part 6 are provided with a driving guide surface 3A (hereinafter referred to as (also simply referred to as a guide surface) is formed. Therefore, in order to drive each steel sheet pile while keeping the earth auger E perpendicular to the opening thereof and keeping the steel sheet pile parallel to the earth auger E, the guide surfaces 3 and 3A in the driving section 5 are respectively grounded. Semi-circular notches 7 and 7A are provided facing each other and substantially circumscribing the outer peripheral surface of the auger E. In addition, in the figure, 8 is a metal plate that is driven between the edge of the flange of the steel sheet pile P and the guide surface 3 or 3A.

The guide jig 1 of this embodiment is formed symmetrically, and in order to align and drive two rows of steel sheet piles in a straight line with an inner distance D between them, the left and right guide surfaces 3, 3 are arranged with the distance D between them. They are formed parallel to each other.

Next, an example of the work of aligning and driving a large number of steel sheet piles P to P in two rows with an inner interval D by using the above-mentioned guide jig 1 is shown in Fig. 3A to D. To explain step by step, in the figure, N is a pile driver, B is
is its main body, and E is an earth auger attached to main body B.

Now, prior to the driving work, two rows of steel sheet piles P~P
The driving normals N and N and a reference line A that is equidistant from both normals N and N are marked on the surface of the driving ground.

Next, the guide jig 1 is positioned on the driving ground with its center line C aligned with the reference line A, and the guide surfaces 3, 3 on both the left and right sides are automatically aligned with the left and right driving normals, respectively. It is positioned parallel to N and N with an interval of W/2 between them.

Next, as shown in FIG. 3A, after positioning the pile driver M in front of the guide jig 1 (to the left in the figure) with its center line aligned with the extension of the reference line A, the pile driver M The earth auger E is positioned concentrically with the semicircular arc-shaped notch 7A of the driving part 5 on the right side (upper side in the figure) of the guide jig 1 by rotating the main body B of the guide jig 1.

Next, the first steel sheet pile P1 is vertically placed into the driving part 5 with the outer surface of its web in contact with the guide surface 3, and the flange of the steel sheet pile P and the guide surface 3A of the guide jig 1 Insert the spacing 8,8 between the
To drive a steel sheet pile P between guide surfaces 3 and 3A in a driving part 5 while guiding it without rattling.

Next, the driving of the second steel sheet pile P2 will be explained with reference to FIG. 3B.
Without moving the main body B of the pile driver M, the earth auger E is positioned concentrically with the semicircular notch 7 of the driving part 5 on the left side of the guide jig 1, on the lower side in Figure 3B. At the same time, the steel sheet pile P2 is erected with the outer surface of the web along the guide surface 3A in the driving part 5, and the flange of the steel sheet pile P2 and the driving part 5 are
A spacer 8 is driven between the inner guide surface 3 and the steel sheet pile P.
Type 2 while guiding it without shaking it.

Next, the driving of the third steel sheet pile P3 will be explained with reference to FIG. After moving by the width, the earth auger E is positioned on the right side of the guide jig 1, inside the driving part 5 on the upper side in the drawing, and the steel sheet pile P3 is driven in the same manner as in FIG. 3A.
However, in this case, the flange of the third steel sheet pile P3 is engaged with the flange of the previously driven first steel sheet pile P1, and the web is positioned along the guide surface 3A.

Next, the driving of the fourth steel sheet pile P4 will be explained with reference to FIG. Position it on the left-hand driving part 5 and drive according to the above procedure.

Incidentally, the driving of the fifth and subsequent steel sheet piles can be performed extremely easily by repeating the above-mentioned procedure.

Moreover, by using the guide jig 1 as described above, each steel sheet pile P1, P2, P3... is driven while being guided along the guide surface 3 or 3A of the guide jig 1, so the steel sheet piles in each row are driven. The groups are automatically aligned and implanted along the implant normal N,N.

Note that the steel sheet piles are driven in, for example, as schematically shown in FIGS. 4 and 5, while the steel sheet piles are tightened by the sheet pile crimping cylinder 10 of the chaining device 9, and are driven by the press-fitting device 11. . However, each time a suitable length is driven in, the tightening by the crimping cylinder 10 is released, the yanking device 9 and the press-fitting device 11 are pulled upward, and the above operation is repeated. In addition, the earth auger E can be appropriately operated in accordance with the ground conditions to effectively drill holes in the ground.

In addition, in the above-mentioned embodiment, the guide surfaces 3, 3A
Although the technique of forming the line in a straight line has been exemplified, the present invention is not limited to this, and it is also possible to form the line in the form of a circular arc or a curved line, for example.

As described in detail above, according to the present invention, the members to be driven can be aligned and driven by the guide surface. In addition, the guide jig of the present invention allows the previously driven member to pass through the communication portion and move along the ground surface as appropriate, so it can be horizontally moved sequentially as the driving work progresses. This allows you to work more efficiently.

Furthermore, since the guide jig of the present invention has a simple structure, it is easy to handle and carry, and the manufacturing cost is low.

[Brief explanation of the drawing]

The figures show one embodiment of the present invention, in which Figure 1 is a plan view illustrating the situation in which steel sheet piles are aligned and driven along the guide surface of the guide jig, Figure 2 is a front view of the same, and Figure 3 is a front view of the same.
Figures A to D are plan views explaining step-by-step an example of driving work for the first to fourth steel sheet piles, respectively, and Figure 4 is a front view schematically showing driving work using a pile driver. , FIG. 5 is a plan view schematically showing an example of a horizontal cross section of the chunking device and the press-fitting device. 1... Guide jig, 3, 3A... Guide surface, 5...
Driving part, 6...Communication part.

Claims (1)

[Scope of utility model registration request] A pile driving guide jig that is placed horizontally on a pile driving surface for sequentially driving horizontally on the pile driving surface to alternately invert and sequentially drive the members to be driven in a state in which they are connected. A guide part is formed with a guide surface for defining the driving position of a subsequent member to be driven by circumscribing the driven member to be driven, and a head part connected to the tip of the guide part is formed. On the other hand, the driving part that is installed to vertically penetrate the earth auger and the driven member has a pair of notches that are curved along the outer circumferential surface of the earth auger, and a pair of notches at the front and rear of the two notches. On the other hand, driving guide surfaces are formed which are connected to each other in order to circumscribe the driven member and define the driving posture of the driven member, and between the driving part and the guide part, there is a driven guide surface. A pile driving guide jig, characterized in that a communicating part is formed to allow a member to be driven to pass from inside the driving part to the guide surface.