JPS5854110A - Construction of water distributing pipe block for melting snow - 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] The present invention relates to a method for laying water pipe blocks for snow melting.

In regions with significant winter snowfall, water is sprinkled constantly or at appropriate times during snowfall to prevent snow from accumulating on roads.

In order to simplify the piping construction for this watering, we will use snow melting water pipe blocks, which have water nozzles attached to the surface and water pipes inside, and bury them along the designated roads. things are being done.

By the way, since the snow melting water pipe blocks mentioned above must be arranged while connecting the water pipes buried inside, strict coaxial alignment is required, but the snow melting water pipe blocks are generally Since it is about 4 meters long and made of concrete, it is heavy and has the disadvantage that it is extremely difficult to adjust the installation for coaxial arrangement.

In other words, since the snow melting water pipe block is laid in the center of the road, the width of the excavated trench for laying it must be within the minimum necessary limit so as not to obstruct the passage of vehicles during the construction work.
It was extremely difficult to move minutely freely within such a narrow excavated groove.

In view of the above, the present invention was made for the purpose of providing a method for laying snow melting water pipe blocks that can be easily moved in narrow excavated trenches and can be laid quickly and accurately. When laying a long block-shaped snow melting water pipe block with a water nozzle opening on the top and a water pipe to the water nozzle buried inside, it is necessary to After arranging the friction reducing material on the concrete plate-1 at appropriate intervals, place the water pipe block for snow melting described in 1 on the friction reducing material-1-,
This feature is characterized in that the snow melting water pipe blocks are aligned and connected by sliding on the friction reducing material.

Next, FIG. 1 together with a diagram showing the state of implementation of this invention
2 to 5 are cross-sectional views of a snow-melting water pipe block (hereinafter simply referred to as block), which is an object of the present invention, and are explanatory diagrams showing the state of installation.

A block 1 to which the present invention is implemented is in the form of a long block with water spray nozzles 2 .

Next, this invention process will be explained.

First, concrete is poured into the trenches 4 previously excavated at appropriate locations on the road at appropriate intervals, preferably at the same pitch as the length of the broso, and then placed on the concrete plate 5 as shown in FIG. 3. A friction-reducing material 6 such as a steel plate friction-reducing cloth having an area approximately the same as that of the concrete plate 5 is placed on the concrete plate 5. Alternatively, in this case, the friction reducing material 6 may be attached to the concrete plate 5 in advance.

Then, as shown in FIG. 4, after placing the block 1 on the friction reducing material 6, the block 1 is aligned by sliding it on the friction reducing material 6 as shown by the arrow P.
Block 1 will be connected.

In the above, since the block 1 is placed on the friction reducing material 6, the block 1 is easily slidable and can be easily moved.

Then, at the time of positioning and connection, the water pipe 3.3 is connected using the joint 7 as shown in FIG. The surrounding area will be backfilled with concrete.

In the above, the concrete plate 5.5 is conveniently located at the junction of the blocks 1, as it prevents shear failure of the water pipe 3 due to ground laws and the like.

No. 6- is another example of a concrete plate, and is a cross-sectional view in the width direction.

In FIG. 6(a), protrusions 51a, 51a are provided upwardly on both ends of a concrete plate 51 over the entire length in the longitudinal direction, and a friction reducing material 61 is placed on the concrete plate 51, sandwiched between the protrusions sia, 51a. It is located in In this case, since the block 1 is placed on the friction reducing material 61 while being held between the protrusions 51a, 51a, positioning can be easily performed.

In FIGS. 6(b) and 6(h), protrusions 52a, 53a are provided at the center in the width direction of the funkreat plate over the entire length in the longitudinal direction, and friction reducing materials 62, 62, 63, 63 are provided on both sides of the protrusions 52a, 53a. are each concrete plate 5
It is located on 2.53. In this case, block l
has protrusions 52 a at the center in the width direction and at both ends in the longitudinal direction;
Since a recess (not shown) that fits into the friction reducing material 62, 62 or 63.63 is provided with a suitable length and placed on the friction reducing material 62, 62 or 63.63, alignment can be easily performed.

Since this invention is constructed as described above, the long length,
In addition, fine movements for positioning of heavy blocks can be easily performed, connection work is easy, and work can be performed quickly.

In addition, since the concrete plate is located below the block and supports it, especially when placed on the lower surface of the block connection, it can prevent shear displacement due to ground subsidence, which is convenient.

[Brief explanation of drawings]

Fig. 1 is a cross-sectional view of a snow melting water pipe block to which this invention is applied, Figs. FIG. 3 is a cross-sectional view in the width direction of the embodiment. 1 Melting snow water pipe block, 2... Water nozzle. 3. Water pipe, 4. Laying trench, 5. Concrete plate,
6 Iron plate. 6 5t53 Commissioner of the Japan Patent Office Shima 1) Haruki Tono 1, Indication of the case 1982 Patent Application No. '151865 2. Name of the invention Method for laying water pipe blocks for snow melting 3. Relationship with the person making the amendment Patent application Address: 2-47 Shikitsu Higashi-chome, Naniwa-ku, Osaka Name (1)
05) Kubota Iron Works Co., Ltd. (and others) Representative Director and President Hiroshi Keio University Department 4 Agent dispatch date February 23, 1981 61. Subject of amendment Drawing Z Contents of amendment

Claims (1)

[Claims] (1) When laying a long block-shaped snow melting water pipe block with a water sprinkling nozzle opening on the top surface and a water pipe to the water nozzle buried inside, install a water pipe block suitable for use on the bottom of a pre-excavated installation trench. After arranging concrete plates at appropriate intervals and placing a friction reducing material on the concrete plates, placing the snow melting water pipe block on top of the friction reducing material and sliding the friction reducing material. A method of laying a water pipe block for snow melting, the method comprising aligning and connecting the water pipe blocks for snow melting.