JPH0452371A - Method and device for constructing guiding side wall of linear motor car - 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 and apparatus for constructing a guide side wall for a linear motor car.

<Problems to be Solved by the Present Invention> A linear motor used in a linear motor car is composed of coils corresponding to the primary and secondary sides of an induction motor, and a reaction rail.

As shown in FIG. 7, the coils a are attached to opposing surfaces of guide side walls laid at intervals, and the linear motor car 0 runs between them.

Therefore, extremely high precision is required in the construction of the guide side wall.

However, the accuracy of the finished RC structure for boat fishing has an error of 1~
Since the number of coils is 2, the accuracy of installing the coil a increases, and the work of installing the coil a becomes extremely difficult.

<Object of the present invention> The present invention was made to solve the above-mentioned problems, and it is an object of the present invention to provide a method and device for constructing a guide side wall for a linear motor car, which can improve construction accuracy. With the goal.

<Means for Solving the Problems> That is, the present invention moves a formwork cart to a concrete placement position along the planned construction line of the guide side wall of a linear motor car, and moves the formwork cart in the direction of movement of the formwork cart. The inner formwork and outer formwork, which are attached to the side and can be adjusted in position by expanding and contracting the cylinder, are placed on both sides of the concrete pouring position by adjusting the cylinder's expansion and contraction, and the inner formwork and the outer formwork are This is a method of constructing guide side walls for linear motor cars, in which the inner formwork and the outer formwork are removed from the molds by adjusting the expansion and contraction of cylinders after pouring concrete between them.

In addition, there is a formwork cart that can be moved along the planned construction line of the guide side wall of the linear motor car, an inner formwork and an outer formwork that are attached to the side of the formwork cart in the direction of movement and whose position can be adjusted by expanding and contracting the cylinder. This is a construction device for the guide side wall of a linear motor car, consisting of formwork.

<Description of the present invention> The present invention will be explained in detail below.

<A> Structure of the construction device (FIGS. 1 to 3) The construction device for the guide side wall of a linear motor car of the present invention is composed of the following members.

(1) Formwork trolley The formwork trolley l is a frame on which equipment such as formwork is mounted and moved.

As shown in FIG. 1, the formwork truck 1 is of a self-propelled type using tires 11 or of a rail type, and is driven by an electric or hydraulic motor.

Furthermore, the upper part of the formwork truck 1 is provided with overhanging parts 12 that overhang on both left and right sides in the moving direction.

A traveling trolley 13 used during concrete pouring work is suspended from the projecting portion 12.

(2) Inner and outer formwork The inner formwork 2 is formed in the same shape as the inner surface of the guide side wall, and the outer formwork 3 is a formwork formed in the same shape as the outer surface of the guide side wall.

The surfaces of both molds 2.3 are preferably treated with Teflon in consideration of ease of demolding.

When the inner formwork 2 is installed on the formwork truck 1, the inner formwork 2 is attached to the inner formwork supports 21, and the inner formwork supports 21 are connected to the inner formwork cylinders 22 via a plurality of inner formwork cylinders 22 (see Fig. 1). (shows the case of three cylinders), the inner formwork 2 is connected to both sides of the lower part of the formwork truck 1 in the moving direction so as to face outward.

In addition, the outer formwork 3 is attached to the outer formwork support 31 in the same way, and the overhanging part 1 is attached via a plurality of outer formwork cylinders 32.
The outer formwork 3 is connected to both sides of the inner formwork 2 so as to face the inner formwork 2 with the outer formwork 3 facing inward.

The cylinders 22.32 for the inner and outer forms are arranged so that the inner and outer forms 2.3 can move up and down, left and right, and diagonally.

Therefore, the position of the inner and outer formwork 2.3 can be finely adjusted by adjusting the strokes of the cylinders 22.32 groups.

In addition, the stroke accuracy of cylinder 22.32 is 0.1+
Although it is approximately n+n, in order to improve construction accuracy, it is necessary to design members such that the amount of deformation and deflection of the formwork truck 1 is as small as possible, and to confirm the amount of deformation as appropriate.

(3) Drill anchor device The drill anchor device 4 is for fixing the inner and outer formwork 2.3 in a predetermined position.

The drill anchor device 4 is shown in FIG. 2.3.

The rotational drive source of the drill anchor device 4 includes a drive motor 4.
Use 1.

Bearings 42 are provided at both ends of the drive motor 41 in the axial direction.
Attach 43.

A piston rod 44 is attached to the bearing 42 side, and a piston 45 is attached to the free end of the piston rod 44.

On the other hand, a drill rod 46 is attached to the bearing 43 side.

This drill rod 46 is detachably attached by a rod chuck 47 attached to the end of the bearing 43.

Further, a plate-shaped presser fitting 48 is attached to the drill chuck 46.

The presser metal fitting 48 has a through hole in the center, the drill rod 46 is passed through the through hole, and the presser metal fitting 48 is mounted so as to be movable along the drill rod 46.

Then, this drill anchor installation M4 is attached to the inner and outer formwork support 2.
1. Store at the bottom of 31.

Although FIG. 2.3 shows a case where it is built in the outer formwork support 31, it is also built in the inner formwork support 21 in the same way.

An air cylinder chamber 33 and a storage chamber 34 are formed in the lower part of the outer form support 31.

One end of two air passages 35 communicate with the air cylinder chamber 33 near both upper and lower ends, and the other ends thereof communicate with an air pump or the like.

On the other hand, the storage chamber 34 has a bottom plate 36 that is integrated with the outer form support 31.
have.

In addition, a guide rail 37 is provided in the storage chamber 34 in the vertical direction.
Lay down.

Partition wall between air cylinder chamber 33 and storage chamber 34 and bottom plate 36
, through holes 39 and 49 are formed coaxially.

When storing the drill anchor device 4, the piston rod 44 is passed through the through hole 39, the drill rod 46 is passed through the through hole 49, and the piston 45 is inserted into the air cylinder chamber 3.
3, the drive motor 41 and the like are housed in a storage chamber 34.

Therefore, by adjusting the supply and exhaust of air in the air cylinder chamber 33, the piston 45 moves up and down.
Drive the drill rod 46 into the roadbed concrete 5,
It can be pulled out again.

When the drill rod 46 is driven in, as shown in FIG. 3, the chuck 47 makes surface contact with the presser metal fitting 48, and the presser metal fitting 48 presses the bottom plate 36, so that the pull-out resistance of the drill rod 46 is reduced. It can be transmitted to the outer formwork support 31, and the outer formwork support 31 can be reliably fixed on the roadbed concrete 5.

<Example> Measurement and Control System (FIG. 4) The present invention is configured to detect and control the exact position of the formwork truck 1 and the internal and external formworks 2.3.

The formwork truck 1 is equipped with an inclinometer 6 and a reflection mirror 61.
are mounted on each side of the formwork truck 1 in the moving direction.

At the rear of the formwork truck 1, two total stations 62 (transits with automatic tracking type range finders) are installed to standardize each reflecting mirror 61.

The total station 62 used is one that can automatically track a moving object and dynamically perform three-dimensional positioning once the -degree standard is set.

The basic data of the horizontal angle, vertical angle, and slope distance measured by the inclinometer 6 and the total stage type 62 are as follows:
Sent to the control computer.

Note that by connecting a video camera to the total station 62, remote control can be performed while watching a monitor TV.

In addition, the control computer is connected to the drill anchor device 4, a formwork controller, a traveling device for the formwork cart 1, an operation panel, a limit switch, and the like.

After positioning the inner and outer formwork 2.3, the drill anchor device 4 can be controlled so that it can automatically drive and pull out the concrete into the roadbed 5 in conjunction with other operations.

The formwork controller is a device that adjusts the stroke of each cylinder 22, 32 according to instructions from the control computer, and these cylinder strokes are fed back to the control computer.

Further, since there are three cylinders 22 and 32 controlled at each location, it is necessary to synchronize them.

The tires 11 and traveling devices such as electric or hydraulic motors are
The formwork cart 1 is automatically controlled to move to a predetermined position based on the position data of the formwork cart 1 from each measuring device.

<C> Construction method The construction method will be explained below.

(1) Assembling reinforcing bars, moving and fixing the formwork truck First, the roadbed concrete 5 is laid on the ground where the guide side walls are to be constructed.

Next, prefabricated reinforcing bars and the like assembled at the factory are assembled at predetermined intervals at the locations where the guide side walls are planned to be constructed.

Then, the formwork cart 1 is installed between these reinforcing bars in a movable direction along the planned construction line, and the formwork cart 1 is moved to the concrete placement position.

At this time, the formwork truck 1 can be accurately moved to a predetermined casting position based on the basic data of the horizontal angle, vertical angle, and slope distance measured by the inclinometer 6 and the total station 62.

After stopping the formwork carriage 1, the formwork carriage 1 is fixed at a predetermined position using a drill anchor device 4, a rail clamp, or the like.

(2) Formwork Positioning After the formwork cart 1 is fixed, the position and orientation of the formwork cart 1 are measured using the inclinometer 6 and the total station 62.

Then, based on the data on the position and posture of the formwork truck 1,
Calculate the required stroke of the cylinder 22.32 of the left and right inner and outer formwork 2.3, and move the cylinder 22.3 up to that stroke.
2 to move the inner and outer formwork 2.3 to predetermined positions.

(3) When concrete is poured, the inner and outer formwork supports 21.31 have a cantilevered structure in the area where the lower concrete pressure is high, so the lower part of the inner and outer formwork supports 21.31 , automatically fixed onto the roadbed concrete 5 by the drill anchor device 4.

That is, the drive motor 41 is driven to rotate the drill rod 46, and at the same time, air is forced into the upper chamber of the air cylinder chamber 33, the piston 45 is pushed down, and the drill rod 46 is driven into the roadbed concrete 5.

This allows the inner and outer formwork 2.3 to be fixed together with the inner and outer formwork supports 21.31.

(4> Attachment of gable formwork and concrete pouring After fixing the inner and outer formwork 2.3, attach the gable formwork to the end of the guide side wall in the extending direction using the conventional method.

Concrete is then placed between the inner and outer formwork 2.3.

The pouring is carried out using a boom-type pump truck, but a tremie tube that can be moved up and down according to the pouring height is used to prevent junk from occurring on the surface of the inner formwork 2, which requires precision.

This tremie tube is held by a traveling trolley 13 suspended from both overhanging portions 12 of the formwork truck 1, and is cast.

In addition, the vibrator used when pouring concrete is
In order to maintain the accuracy of the inner and outer formwork 2.3, use flexible ones.

(5) Surface troweling and demolding The surface of the poured concrete is troweled using a conventional method.

Next, the drill rod 46 of the drill anchor device 4 is pulled out from the roadbed concrete 5.

Then, the strokes of the cylinders 22.32 for the inner and outer forms are controlled to remove the inner and outer forms 2.3.

In this case, as shown in FIG. 5.6, the stroke of each cylinder 32 is adjusted so that the outer formwork 3 is gradually peeled off from the upper part of the guide side wall and the entire surface is cut off.

The inner formwork 2 is also peeled off in the same way.

(6) Cleaning, cleaning, and applying oil to the formwork After demolding, the surfaces of the inner and outer formworks 2.3 are cleaned using a rotating brush suspended from the traveling trolley 13.

Since the surfaces of the inner and outer formworks 2.3 are treated with Teflon, it seems unnecessary to apply oil, but if necessary, the inner and outer formworks 2.
．． Apply oil to the entire surface of step 3.

Become.

Note that the error due to linear approximation is the error when using a linear formwork with respect to the design curve of the guide side wall.

<Action of the present invention> Next, the operation of the present invention will be explained.

As described above, the present invention allows the position and orientation of the formwork carriage 1 to be detected by the inclinometer 6 and the total station 62, and the movement can be controlled by the control computer, thereby allowing accurate positioning of the formwork carriage 1. can be maintained.

Furthermore, by adjusting the stroke of each cylinder 22.32, the position of the inner and outer formwork 2.3 can be precisely installed.

Therefore, the construction accuracy of the guide side wall is limited to the error due to linear approximation (maximum 1.5n+n+) and the error in surveying accuracy (maximum 1.5n+n+).
．． 5a++n), totaling errors in formwork manufacturing accuracy, etc., 4
It can be suppressed to within ~5lnII1.

Therefore, it is possible to construct a guide side wall with high precision. <Effects of the Present Invention> Since the present invention has been described above, the following effects can be expected.

In other words, the accuracy of the completed RC structure for boat fishing has an error of 1 to 2.
cm, the precision of installing the coil is high (and the work of installing the coil becomes extremely difficult).

In contrast, the present invention detects the position and orientation of the formwork truck using a measuring device and controls its movement.
Accurate formwork truck position can be maintained.

Furthermore, by adjusting the stroke of the cylinder, the positions of the inner and outer formwork can be accurately installed.

Therefore, according to the present invention, the error in construction accuracy of the guide side wall can be suppressed to within 4 to 5 mm.

Therefore, the construction accuracy of the guide side wall can be dramatically improved.

[Brief explanation of the drawing]

Fig. 1: An explanatory diagram of the entire construction device of the present invention Fig. 2.3 An explanatory diagram of the nitrile anchor device Fig. 4: An explanatory diagram of the measurement system Fig. 5.6: An explanatory diagram of the demolding work Fig. 7 An explanatory diagram of the Ni-guide side wall Explanatory diagram of Figure 2 Figure 3 Figure 5 Figure 6 Figure b

Claims (2)

[Claims] (1) Move the formwork cart to the concrete placement position along the planned construction line of the guide side wall of the linear motor car, and adjust the position by expanding and contracting the cylinder attached to the side of the formwork cart in the direction of movement. The possible inner formwork and outer formwork are placed on both sides of the concrete placement position by adjusting the expansion and contraction of the cylinder, and after pouring concrete between the inner and outer formwork, the expansion and contraction of the cylinder is adjusted. A method of constructing a guide side wall for a linear motor car by removing the inner formwork and outer formwork. (2) A formwork truck that is movable along the planned construction line of the guide side wall of the linear motor car, an inner formwork whose position can be adjusted by expanding and contracting the cylinder, and which is attached to the side of the formwork truck in the direction of movement; A construction device for the guide side wall of a linear motor car, consisting of an outer formwork.