JPS6232096A - How to position the template - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a method for positioning a template temporarily placed on a workbench, and in particular to a method for positioning a template temporarily placed on a workbench, and in particular, for positioning a template from 1 to 10 in a short time with a minimum amount of movement and a minimum number of jacks. The present invention relates to a template positioning method that enables positioning of templates.

[Prior Art] When constructing a sea berth to serve as a distribution base for the purpose of storage management, receiving and receiving operations, etc. of LPG, petroleum, chemicals, etc., diagonal piles are driven into the seabed to serve as the foundation.

To drive such piles, a offshore platform called a sepp is usually used. The SEP is towed to the work site by its own buoyancy, and when it arrives at the work site, the support is raised on the hour so that it touches the seabed, and the work platform is jacked up along the support and fixed to the support.

A pile guide device called a template is provided on the workbench. The template usually consists of a plurality of guide tubes into which the stakes are inserted and a connecting member connecting the guide tubes.

When driving piles, the template temporarily placed on the workbench is moved to the template installation position obtained from the survey results and fixed. After completing the installation of the template, the pile to be driven is lifted up by a crane, supported by the pile support member of the pile driving tower set on the workbench, and the pile support member is lowered along the pile driving tower. The pile is lowered into the sea through the guide tube of the template, and the pile is erected.

Once the piles have been erected, the piles are driven into the ground below the seabed by hitting the pile heads with a hammer or the like that moves up and down along the pile drive tower. Once a predetermined number of piles have been driven, the pile heads are tied together and the workbench is moved to the next pile driving site.

[Problem with the prior art 1] By the way, when positioning a template temporarily placed on a workbench according to the survey results, it is difficult to find a fixed point (in the past, each point had to be moved a little at a time to move it to the correct position). It took some time to converge.

[Means to Solve the Problems] The present invention has been made to solve the above-mentioned problems of the conventional template positioning method, and its purpose is to minimize the amount of movement and the minimum movement jerk. The object of the present invention is to provide a template positioning method that can quickly and always install a template at an accurate position.

Therefore, according to the present invention, a pair of fixed girders 2A and 2B are installed parallel to each other with a predetermined interval apart on the workbench.
, two slide seats 3A to 3D are provided for each of the fixed girders 2A and 2B to move along the fixed girders 2A and 12B, and swivel seats 5A to 5D are provided for each slide seat 3A to 3D so as to be horizontally pivotable, On the other hand, the template 10 is supported by a pair of hanging beams 13A and 13B provided parallel to each other with a predetermined interval apart, and the hanging beams 13A,
13B provided on one fixed girder 2A, swivel seat 5A, 5B
and swivel seats 5C and 5D provided on the other fixed girder 2B so that it can be moved while being guided by the swivel seats 5A to 5D, find the installation position rZJ of the template from the survey results, and fix the fixed girder 2A, The direction parallel to 2B is the X direction, and the direction orthogonal to the fixed girders 2A and 2B is the Y direction.
Movement direction, X, Y, and movement ff1 of template hanging girders 13A and 13B temporarily placed "O" on fixed girders 2A and 2B
x and y are calculated, and the template is moved in the X and Y directions from point C, which is the position of the turning pin 6 of each turning seat 5A to 5D at the template installation position ffi rZJ. Mark out 13B, select the marked point a, fix the fixed girders 2A, 2B, and slide seats 3A, 3D.
The template suspension beams 13A, 13B are moved in the X and Y directions by operating the hydraulic jacks 14A, 14B provided between the template suspension beams 13A, 13B and the hydraulic jacks 14C, 14D provided between the swing seats 5C, 5D and the template suspension beams 13A, 13B. Move to rJx.

y movement so that point a coincides with point C, and then set the pivot seat 5A at point C as the pivot center point between the fixed girder 2B and slide seat 3D on the pivot seat 5D side that is symmetrical to the pivot seat 5A. The hydraulic jack 14B and the hydraulic jack 14D provided between the swing seat 5D and the template hanging girder 13B.
to rotate the template hanging girders 13A, 13B until the other marked point a coincides with point C, which is the position of the rotation pin 6 of the other rotation seat 5D at the template installation position rZJ, and then rotate the template again. The position is surveyed to check whether it is within tolerance, and after checking, the template hanging girders 13A, 13B are fixed with a predetermined jig.

[Operations and Effects of the Invention] According to the template positioning method according to the present invention,
Move the template suspension girder in the X and Y directions by mx and y a-
+b-+c, and then rotate the entire template hanging girder from C to C' around the fixed point C, so the temporarily placed "0" template can be moved to the predetermined position obtained from the survey results with minimal motion. installation position rZ]
It can be moved and installed. At that time, the only jacks to be used are two jacks installed between the fixed girder and the slide seat, and two jacks installed between the swing seat and the template hanging girder, and a total of four jacks are sufficient. Further, no special technique is required for positioning the template, and the template can be quickly and easily positioned and installed at the template installation position obtained from the survey results.

[Example] Embodiments of the present invention will be described below with reference to the drawings.

In FIG. 1 and FIGS. 4 to 6, a pair of fixed beams 2A and 2B are arranged in parallel to each other at a predetermined interval in the center of the workbench 1. Each fixed digit 2A
, 2B is a slide seat 3A13B that moves on the fixed beams 2A, 2B by the stroke of hydraulic jacks 14A, 14B, which will be described later.

3G and 3D are hanging girders 13A113B of the template described below.
Two fixed beams are provided for each of the fixed beams 2A and 2B, separated by an interval of . Seats 4 are applied to the portions of the slide seats 3A13B and 3C13D that contact the fixed beams 2A and 2B.

Each slide seat 3A, 3B, 3G, 3DJ- has a pivot seat 5A15B that can be freely pivoted by a pivot pin 6.

5C and 5D are provided. This rotating seat 5A.

5B, 5G, 5D have hanging girder 13A of template on top of them.
, 13B are placed thereon, and guide the suspension girders 13A, 13B of the template to move in a direction intersecting the fixed girders 2A, 2B. Each rotating seat 5A, 5B.

5C15D swing drawing and template hanging girder 13A
, 13B are provided with shoes 7.8, and flanges 9A and 9B are formed on both sides of the H8 surface.

The template, indicated by 10 in its entirety, is a cylindrical body 11 into which stakes (not shown) are inserted (the illustrated example is for driving four piles, and there are four cylindrical bodies separated by 90 degrees). ) and a connecting member 12 that interconnects the cylindrical body 11. This is a well-known structure, and is supported by a pair of suspension girders 13A and 13B that are arranged parallel to each other with a predetermined spacing between them. The suspension girders 13A and 13B are hung between the swing seats 5A and 50 provided on the fixed girders 2A and 2B and between the swing seats 5B and 5D.

Each fixed girder 2A, 2B and each one slide seat 3B.

Hydraulic jacks 14A, 14B for moving the slide seats 3A, 3B, 3C, 3D along the fixed girders 2Δ, 2B are provided between the fixed girders 3D and Each turning seat 5C, 5D on the girder 2B side
and each template hanging girder 13A, 13B, there is a hanging girder 1.
Hydraulic jacks 14C and 14D are provided which are connected to each other by shafts 15C and 115D for guiding the 3A and 13B on the pivot seats 5A and 5B and moving them in a direction intersecting the respective fixed beams 2A and 2B. After moving the template 10 to a predetermined position, each slide seat 3A, 3813C
Pin 16 for fixing 13D to each fixed girder 2A, 2B
is provided.

Regarding the method of positioning the template using the above-mentioned apparatus, FIG. 1, FIG. 4 to FIG. This will be explained with reference to FIG.

Find the template installation position rZ based on the survey results,
The direction parallel to fixed girders 2A and 2B is the X direction, fixed girder 2A,
Fixed girders 2A, 2B with the direction orthogonal to 2B as the Y direction
Template suspension girders 13A and 13B with "O" temporarily placed on top
The direction of movement X, Y and amount of movement x, y are stated.

Move in the X and Y directions from point C, which is the position of the turning pin 6 of each turning seat 5A to 5D in the installation position rZJ of Tenbrae 1 to installation position rZJ.
Mark out 3A and 13B.

Select the marked point a (part A in Figure 1) and turn the swivel seats 5G, 5.
Operate the hydraulic jacks 14C and 14D provided between D and the template hanging girders 13A and 13B to move the template hanging girders 13A and 13B in the Y direction by an amount of y to set the template hanging beams 13A and 13B at the rYJ position. Next, operate the hydraulic jacks 14A, 14B provided between the fixed girder 2A, 12B and the slide seats 3B, 3D to move the template hanging girders 13A, 13B in the X direction by an amount kx, thereby moving the template hanging girders 13A, 13B to rXJ. position.

At this time, point a moves from a-+b to C and reaches point C. Also, point a on the symmetrical side (part 8 in Figure 1) is a-+b
→C' and comes to point C'. In addition, either of the template hanging girders 13A, 13B may be moved in the X1Y directions first.

Next, with the pivot seat 5A at point C (section A in FIG. 1) as the pivot center point C, the fixed girder 2B and slide seat 3D located on the pivot seat 5D side (section 8 in FIG. 1) that is symmetrical to the pivot seat 5Δ Hydraulic jack 14B provided between the swing seat 5D and template hanging girder 13B
D, move the template hanging girders 13A and 13B so that the other marking point c' (point a has moved to point C') is the pivot pin 6 of the other pivot seat 5D at the template installation position ItrZJ. Rotate until it matches point C.

At this time, point C' turns to point C. As a result, the template hanging beams 13A and 13B are at the template installation position rZ.
Moved to J.

Next, the template position is measured again to confirm whether it is within the allowable error. After confirmation, the template hanging girders 13A and 13B are fixed with a predetermined jig 16, and the hydraulic hoses of each hydraulic jack 14A to 14D are fixed. to be removed.

[Brief explanation of the drawing]

FIG. 1 is a plan view showing how a template provided on an offshore workbench is positioned according to an embodiment of the present invention; FIGS. 2 and 3 are detailed views of portions A and 8 in FIG. 1;
4 to 6 show essential parts of an apparatus for carrying out the present invention, with FIG. 4 being a plan view, FIG. 5 being a front view, and FIG. 6 being a side view. 1... Offshore work platform 2A12B... Fixed girder 3
A, 3B, 3C13D...Slide seats 5A, 5B,
5G, 5D...Swivel seat 10...Template
13A, 13B...hanging girder 14A, 148114
G, 140...Hydraulic jack Fig. 2 Fig. 4

Claims (1)

[Claims] A pair of fixed girders are installed parallel to each other with a predetermined distance apart on the workbench, and each fixed girder is provided with two slide seats that move along the fixed girders, and each slide seat is equipped with a horizontal rotation mechanism. A swing seat is freely provided, and the template is supported by a pair of suspension girders installed parallel to each other with a predetermined distance apart, and the suspension girders are connected to a swing seat provided on one fixed girder and a swing seat provided on the other fixed girder. The installation position of the template is determined from the survey results, and the direction parallel to the fixed girder is the X direction, and the direction perpendicular to the fixed girder is the direction perpendicular to the fixed girder. As the Y direction, calculate the moving direction, X, Y, and movement amount x, y of the template suspension girder temporarily placed on the fixed girder, and calculate the point c, which is the position of the swing pin of each swing seat at the template installation position.
Mark out a point a at a distance x and y of movement in the X and Y directions from Operate the hydraulic jack installed between the template suspension girder and the girder to move the template suspension girder by an amount x and y in the X and Y directions to align point a with point c, and then use the swing seat at point c as the swing center point. Operate the hydraulic jack installed between the fixed girder and the slide seat on the side of the swing seat symmetrical to the swing seat, and the hydraulic jack installed between the swing seat and the template suspension girder to lift the template suspension girder to another frame. Rotate the template until point a coincides with point c, which is the position of the pivot pin on the other pivot seat at the template installation position, and then measure the template position again to confirm whether it is within the tolerance, After confirmation, a template positioning method is characterized in that the template hanging girder is fixed with a predetermined jig.