JPS6033921B2 - How to install equipment etc. on the foundation - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for installing equipment on a foundation, and more particularly to a method for leveling and installing rails and sleepers on tracks, or for hemming other equipment.

Figure 1 shows the conventional method of installing the device. When installing the device 1, set the device 1 position, set the bell in advance with a jack or liner, etc., and insert the liner 4 between the bottom surface 2 and the foundation 3. Then hold the bell in that position,
Furthermore, after creating a weir 5 with formwork and clay on the outside, the foundation 3
A method of fixing the device 1 by pouring a grout material 6 such as resin or cement into the gap between the bottom surface 2 and the bottom surface 2 of the device 1 is used.

However, this takes time and effort to build a weir outside the device 1, and is not suitable especially when there are many small devices.

For this purpose, as shown in the second figure, the gap created by adjusting the lower surface 2 of the device 1 is enlarged again, a nonwoven fabric 9 or the like impregnated with liquid resin is inserted into the gap 8, and then the device 1 There is a way to lower the level and then harden it.

However, such an impregnated pad method has a drawback that the resin impregnated into the nonwoven fabric leaks out and contaminates the surrounding area when the pad is inserted into the gap and the device is lowered to a predetermined level.

In order to eliminate such defects, the rail 1 as shown in the third figure
There is a method in which a bag 11 for injecting a filler material such as resin is inserted in advance into the gap below 0, and after adjusting the level of the rail 10, resin 13 is injected into the bag 11 from the injection port 12. .

This method is easy to install because the resin 13 etc. is fully injected into the bag 11 that has been inserted in advance. If the bag 11 does not adhere to the bag 11 and is not integrated, and if the surface in contact with the bag 11 has severe unevenness, the two will not come into close contact with each other and a gap will be created. The present invention eliminates the above-mentioned drawbacks, and eliminates the trouble of creating a weir to prevent grout from flowing out when filling the gap between the equipment and the foundation, and is suitable for installing tracks, etc., which can ensure filling. The present invention relates to a method of hemming a device onto a foundation using a variable pad.

Embodiments of the present invention will be described in detail with reference to FIGS. 4 and 5 below.

The variable pad 20 used for carrying out the present invention has a flexible resin impregnated material 21 having continuous holes capable of impregnating and retaining liquid resin as shown in FIG. A mat-like material formed by intertwining and integrating fibrous materials made of inorganic materials, metals, etc. with a diameter of 0.01 or more, or an open-cell foam such as soft urethane foam is used.

Cut this into the required size and shape, such as a rectangular parallelepiped,
A pad 23 is constructed by adhering a frame 22 made of flexible or stretchable plastic, rubber, or foamed material thereof to its four sides. The fiber for the impregnating material is a monofilament of nylon, polyester, polypropylene, etc. with a diameter of 0.01 or more, preferably 0.1
~0.5 Willow monofilament hardened into cotton,
Particularly preferred are those in which these are intertwined.

A fiber mat with thin fibers and a large basis weight is not preferable because the voids become small and the penetration rate of the resin becomes slow. Other than organic substances, glass fiber/ゞichi, lock fire/ゞichi,
Stainless fiber can be used. It is desirable that the resin material 21 is compressed to at least 3/4, preferably about 1/2, of its volume when compressed, and returns to its original size when the load is removed. The frame body 22 for sealing the outer peripheral surface of the resin housing material 21 is made of rubber or foamed polyethylene,
A room-temperature-curing urethane or moisture-curing silicone having rubber elasticity is molded into a frame or sheet shape and adhered to the resin material 21, or liquid resin is applied to the resin material 21. Attach by applying it to the outer circumferential surface and curing it.

The frame body 22 needs to expand and contract in accordance with the expansion and contraction of the resin-impregnated material 21 in the thickness direction due to the load of the device. Device 2
4, when hemming, the main pad 20 is placed on the base 25 as shown in the fourth figure, the device 24 is placed on it, and the position and level of the device 24 is adjusted using a jug, a liner, etc. At this time, use a pad 20 that is thicker than the gap under the device, etc.
The thickness of the pad is selected so that the entire circumference of the frame body sewn with resin-impregnated material is slightly compressed. After this adjustment is completed, the pad 20 is completely filled with grout material. At this time, the side surface of the pad 20 is sealed with a frame 22 made of plastic or rubber-like material, and the frame 22 and the resin building infiltration material 21 are in pressure contact with the foundation 25 and the device 24, so the grout material is not attached to the frame. It is impregnated into the resin-impregnated village 21 and hardened within the body 22 without leaking to the outside.
The grout material to be injected should be a resin that hardens at room temperature and has low viscosity.

As the curable resin for injection, those that are curable at room temperature, have low viscosity, and exhibit little curing shrinkage are used, such as epoxy resins, urethane resins, unsaturated polyester resins, and furan resins. Among them, epoxy resin is most suitable because it has little curing shrinkage, strong adhesion to other materials, and strong physical properties. FIG. 6 shows the case where the pad is applied to the track,
3. A bridge made of Type 1 steel, 31 is a sleeper, 32 is a seal, and a pad 20 is inserted between the sleepers 31 and the bridge 30, and grout material is injected into resin building material 21 and solidified. . Note that the pad 20 may be used to interpose between the base surface and sleepers, or between a rail and sleepers, etc., to join and fix these together, and in this case as well, the pad 20 can ensure the joint effect, etc. without leaking of the grout material. can get.

In the above embodiment, the grout material is injected at the construction site, but the curing time may be designed, the grout material may be injected in advance at the on-site factory, and then inserted at the site.

As described above, according to the present invention, there is no need to create a weir such as a weir, and the grout material is injected into the resin-impregnated material coated on the elastic frame and solidified, so that Since it is adhesive, it is stable and does not contaminate the surrounding area or create gaps. Also, anchor bolts etc. can be set freely inside the pad, and a level adjustment spacer can be placed in advance. Suitable for fixing a large number of railroad ties.

In addition, if the anchor bolts are set in advance, use a strong fiber or other material as the resin material.
Another feature is that the device can be lifted up and floated by the restoring force of the resin immersion material, while the level can be easily adjusted by pushing the device down with the force of the nut attached to the anchor bolt. [
Example] A cotton-like material made of nylon monofilament with a diameter of 0.5 (Toray's Trelock (registered trademark)) was cut into 20 squares x 30 squares x 5 squares and a soft foaming urethane liquid was applied to the four short sides. and harden the foam to make a pad.

When fixing bridge sleepers on a railway bridge, pads were inserted between the sleepers and the Type 1 steel of the bridge, the sleepers were tightened to the specified level with bolts, and then liquid epoxy resin was injected as grout and hardened.

The level of the sleepers could be adjusted efficiently in the short time between passing trains.

[Brief explanation of the drawing]

Figures 1 to 3 are explanatory diagrams showing the conventional hemming method, Figure 4 is an explanatory diagram of the hemming method of the present invention, Figure 5 is a perspective view of the pad, and Figure 6 is an explanatory diagram showing the hemming method of the present invention.
The figure is a perspective view when the present invention is applied to a track. 20... Pad, 21... Side fat impregnated material, 22... Frame. Many figs 2, 3 and 9 sardines

Claims (1)

[Scope of Claims] 1. A variable pad made of a resin-impregnated material having flexible and continuous pores in an elastic frame impregnated with a grout material made of a liquid cold-setting resin is placed on the foundation, and then a variable pad is placed on the foundation. A method for installing equipment, etc., on a foundation, characterized in that the grout material is cured after the installation equipment, rails, sleepers, etc. are placed on the variable pad. 2. A method for installing an apparatus or the like on a foundation as claimed in claim 1, wherein the resin-impregnated material is a mat-like material made by intertwining fibrous materials.