JPS61502066A - Improved protective wall with internal ducts and method of construction - 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] IMPROVED GUARDIAN WALLS WITH INTERNAL DUCTS AND METHOD OF CONSTRUCTION BACKGROUND OF THE INVENTION The invention generally relates to a protective wall or separation part suitable for blocking or separating a roadway. materials, in particular internal ducts and passageways for drainage, and a conduit for cables, such as electrical or telephone cables The present invention relates to protective walls and methods of constructing such protective walls.

It has been conventional practice to use protective walls to separate oncoming traffic lanes. Like that Protective barriers may be permanently installed in medians between lanes or fixed at specific locations, e.g. temporary installation to divert traffic away from construction sites on or adjacent to roadways; Either it will be done. A protective wall prevents cars from crossing into the roadway of traffic in the opposite direction. This prevents head-on collisions. Typically, such a protective barrier including a plurality of reinforced concrete sections placed end-to-end to extend the length of the , whose length may range from a few feet to many miles. Clamp adjacent ends together. Some protective walls also include connecting means to form a continuous rigid structure.

Such protective walls are typically based on a generally rectangular or trapezoidal cross section. a base portion, a tapered intermediate portion, and an upright portion that may be tapered. include. The base typically rests on or is embedded in the median between lanes. ing. The lowest edge of the base is generally the widest part of the guard wall. middle part is from the widest point of the top edge of the base to the widest point of the bottom edge of the upright section. It comes with a minute heteba.

These traditional barriers prevent vehicles from crossing from one lane to the other. However, low spots on roadways collect water, waste rock, and other foreign matter, and and such gathering may cause undesirable accidents to vehicle drivers. The problem mainly arises from the fact that external exclusions such as grooved surfaces etc. Install a water system. Such practices reduce the amount of water that accumulates as it takes time to drain. There was no particular success due to the fact that there was still exposed water. Also, Traditional protective walls now accommodate electrical cabling, pipes, or other auxiliary equipment. Not yet.

Bork et al., United States Special Edition, published August 8, 1978. No. 4.105.353 extends its length through the base and the intermediate portion protection with a longitudinal internal drainage duct extending through a passage of smaller diameter Reveal the wall. The duct is suitable for use in a drainage system for passing water. da Both the trunk and the passageway are suitable for passing telephone lines, electrical wires, etc. drainage system When used in a muffler system, the duct is connected to the external face of the barrier wall so that water flows into the duct. It has an extending side opening. The barrier shall be constructed so that interconnected lines of barrier are formed. It has a male end and a female end.

The protective wall disclosed in U.S. Pat. No. 4.105.353 is to prevent crossing lanes and to provide a conduit or cable for drainage. It functions satisfactorily. However, when manufacturing such a protective wall, I run into a big problem. The duct is cylindrical, it has a cylindrical type, a protective wall formwork used for molding and curing concrete to form This means that it must be included in the Its shape while unsupported After the concrete has been sufficiently cast and hardened, a cylindrical mold is shall be recovered from the concrete leaving a cylindrical passage or duct. No. Even if oil or other suitable substances are applied to the cylinder before pouring the concrete. Even if coated on the external surface of the mold, due to friction between the mold and the surrounding concrete, The mold is very difficult to remove. Therefore, removing the mold from the concrete is is time consuming, expensive, and results in a loss of productivity for workers and equipment. Ru. An alternative method for removing the mold is to attach a bar of the desired length and diameter to the protective wall. It is to incorporate Eve. Modern roadway configurations require a large number of protective walls. and the protective wall should be manufactured as economically as possible. Incorporating pipes is generally an obvious economical way to remove mold from protective walls. It is not considered an alternative method.

Therefore, this technology includes improved roadway protection walls, and concrete Once sufficiently cured, the mold can be removed conveniently and easily from the protective wall. There is a need for a construction method that provides vertical ducts with mold that can be removed.

11 to 11 This invention overcomes the problems associated with the construction of roadway protection walls with ducts or conduits. Overcome. The method of the invention involves forming a pair of tiles, each about half the length of the protective wall. Use a type plug with a bar. The mold plugs are joined together, where the central part of the duct minutes are formed. Retrieving the mold plug from the protective wall is subject to significant frictional forces. It only happens when you first move.

The mold plug is preferably frustoconical, or the mold plug is flat in the duct. In order to provide a horizontal bottom, only the upper part of the duct is It is formed to have a taper that becomes narrower toward the center. frustoconical type plug The narrower end of the type plug connects to form a horizontal bottom in the duct using A continuous form is provided so that concrete does not enter the area where the duct is. It must be formed like a sea urchin.

This invention has the same functionality as previous guards while being more economically constructed than previous guards. i.e. safely and effectively separate traffic lanes while providing drainage provide a protective wall with ducts for passage of cables or cables;

Brief description of the drawing FIG. 1 shows a perspective view of the central protective wall of precast concrete, which is constructed according to the present invention. It is a diagram.

Figure 2 is a partial cross-sectional view of the protective wall of Figure 1 showing the ducts and drains; Ru.

FIG. 3 is a cross-sectional view taken along line 3--3 in FIG.

Figure 4 shows details of the joints in the protective wall, for lines 4-4 in Figure 1. FIG.

Figure 5 is a perspective view of a mold plug used to form a drain in the protective wall of Figure 1. It is a diagram.

6 is a perspective view showing details of one interior end of the mold plug of FIG. 5; FIG.

Preferable 1 Referring to FIG. 1, the protective wall section 10 includes a base 12, a midfoot section 14 and an upright section. Contains 16. The base 12, intermediate foot 14 and upright 16 are preferably integral are formed as separate parts, but are referred to as separate parts for ease of explanation only. Prevention The protection wall 10 has a protrusion 18 at the end 2o and a corresponding depression 22 at the opposite end 24. , a duct 26 , and a plurality of drain ports 28 .

Referring to FIG. 2, the duct 26 is preferably parallel to the longitudinal axis of the base 12. It has a bottom surface 30 that is a row, and thus takes the same angle. The ducts 26 are It is shown comprised of a pair of portions 32 and 34 which are images.

The upper portions 32 and 34 have upper ends tapered toward the bottom 30 of the duct 26. having edges 36 and 38, the duct 26 is therefore more at the ends 20 and 24; It narrows at the central portion 40 where portions 32 and 34 meet. Portion 32 is The end portion 22 of the protection wall 10 has an opening 42 . The opening 42 is located at the center of the duct 26. 40 has a larger cross-sectional area than the ends of portion 32. Similarly, h4 is the end 2 4 has an opening 44. Apertures 42 and 44 are of substantially the same size; The primary difference between 42 and 44 is the protrusion extending from the end 20 around the opening 20. 46 , and a recess 48 extending to the end 24 . The protective wall section 10 is connected to another protective wall. When connected to an end similar to end 24 (not shown), protrusion 46 It fits into a recess similar to recess 48.

Referring to FIGS. 1 and 4, apertures 42, 44 are connected to male keys 52 and 4, respectively. and a female key 54. The male key 52 and the female key 54 are Any configuration suitable for interconnecting a pair of edge-to-edge protective walls. There may be. As shown in FIG. 1, the male key 52 and female key 54 are It has a hexagonal cross section, and the sides of the male key 52 are slightly smaller than the sides of the female key 54. Sai. The side dimensions of the male key 52 and female key 54 are as shown in FIG. , so that the male key 52 can easily pass through the female key. Protective wall parts 10 and 60 are properly connected to form joint 57, end 56 of male key 52 , abuts against the end portion 58 of the second protective wall portion 60 . surfaces 56 and 58 abut each other When the male key 52 is pressed against a pair of corresponding surfaces 66 and 68 on the female key 54. It has a pair of parallel and slightly spaced surfaces 62 and 64.

A suitable sealant (not shown) is placed between surfaces 62.64 and 66.68. to the joint 57 between the protective walls 10 and 60, or to the joint 57. Prevent moisture from flowing.

1, 2 and 3 illustrate details of the drain 28. Figure 1 and As shown in Figure 2, the drain 28 includes a generally rectangular open lower 0 The open lower 0 of leads to duct 72, as best shown in FIG. duct 72 is connected to the duct 26 so that water flows through the open lower 0 and duct 72 to the duct 26. It intersects tract 26. The I-wall 10 is shown having two drainage holes 28. However, any desired number of similar drains may be incorporated.

A preferred method of forming the protective wall 10 is to form a pair of tiles in a conventional concrete form. The first step is to install type plugs 76 & 3 and 78 with bar. Type plug 76 and 78 have a frusto-conical shape as shown in FIG. It may have a trapezoidal cross-section with a lower edge forming a flat bottom part. This way The preferred embodiment is a straight, horizontal duct with no low points where water can collect and stagnant. Provides a method for forming protective walls that are placed end-to-end to incorporate Is Rukoto.

If the mold plugs 76 and 78 are frustoconical, the mold plugs 76 and 78 must have faces 80 and 82 formed on their respective smaller ends; 80 and 82 are joined together to form a continuous mold. The taper of the type plug is Usually only about 1-3 inches in diameter and 10 feet long. Therefore, the duct 26 is just a short distance from the cylindrical duct (not shown) that is incorporated into the previous protective wall. with a slight deviation of .

Ends 80 and 82 are snug together to form a smooth interior surface for duct 26. It must be formed to fit. As best shown in Figure 6 In addition, the end 80 of the mold plug 76 is generally planar and made at a small acute angle to the vertical. Take. Each mold plug 76 & 3 yo 78 has a second end 84 and 86, respectively. However, second ends 84 and 86 are perpendicular to the longitudinal axis. Therefore, the type End 82 of lug 78 must be configured to abut end 80 of mold plug 76. Therefore, there is no gap between them.

The mold plugs 76 and 78 are tapered so that they do not interfere with the concrete barrier. It is easy to pull it out from 10.

Unlike cylindrical type plugs that cure to full length and experience substantial frictional resistance to retrieval. , it is only during the initial movement of the mold plug that significant resistance is encountered.

Procedural amendment @ (method) %formula% 1.Display of the incident PCT/US85100775 2. Name of the invention Improved protective wall with internal ducts and construction method 3, person making corrections Relationship to the incident: Patent applicant Address: Santa Anahues, California, 92704, United States To Matsukasa Pulbard, 4301 Name: Associated Concrete ART PRODUCTS INCORPORATED Representative Byrne, Walter Bee 4. Agent Address: Hirano-cho Yachiyo Building, 2-8-1 Hirano-cho, Higashi-ku, Osaka Telephone: Osaka (0 6) 222-0381 (generation) 6, subject of correction Document pursuant to the provisions of Article 184-5, Paragraph 1 of the Patent Act 1-21 Name of invention column and 5. Column for the representative of the patent applicant, translation of the first page of the specification, power of attorney, and translation 7. Contents of correction (1) In the column of the title of 22 inventions of the document pursuant to the provisions of Article 184-5, Paragraph 1 of the Patent Act. [Brain hM and FA7fc9g"iir which young internal ducts, H4 ducts 5 of the written notes by '5h'd and M7fC%Ni. Patent application We will add ``Byrne, Walter Bee'' to the representative column.

I am attaching a new document prepared for the purposes of (1) and (2) above.

(3) In the first translated text on the first page of the specification, the title of the invention is “Preventive device with internal duct”. For the purpose of protection walls and structures, please attach a typewritten translation of the first page of the specification. I will attach it.

(4) We will supplement the power of attorney and translation.

that's all Copy and translation of correction layer) Submission 4 (Patent Law Article 184-7, Paragraph 1) December 1985 27th of the month

Claims (13)

[Claims] 1. A method of forming a roadway protection wall having a duct, the method comprising: A first frustoconically shaped mold plug is placed in a concrete form; Place the second frustoconically shaped mold plug into the concrete formwork and and a second mold plug are abutted end to end to form a continuous mold for the duct. The concrete is poured into concrete forms and the concrete is cured. Se, Katsu removing the first and second mold plugs from the hardened concrete; A method, including steps. 2. The first and second type plugs are straight lines extending between opposite ends of the guard wall. The method according to claim 1, which is arranged to form a duct having a portion of Law. 3. The steps forming the duct should be aligned so that the straight part is the lower edge of the duct. 2. The method of claim 1, further comprising: 4. a protrusion formed at the first end of the guard wall portion, and a plurality of such guard wall portions Accommodates protrusions so that they are connected end-to-end to form a continuous protective wall. Form a depression in the other end of the protective wall 2. The method of claim 1, further comprising the step. 5. Drainage is provided so that liquid can communicate between the face of the protective wall and the duct. The method according to claim 1, further comprising a step forming an opening on a side surface of the protective wall. Method. 6. Generally formed as an elongated structure with a duct, the duct comprising a first portion and a and a second portion, the first portion extending from the first end of the protective wall portion to the center. The second portion is formed to have a cross section that gradually becomes narrower in the second portion of the protective wall portion. The first end is formed to have a cross section that gradually narrows from the second end to the central part; and a second portion interconnected to form a continuous duct. Protection wall. 7. The duct has a linear section extending from the first end to the second end of the protective wall. , a roadway protection wall portion according to claim 6. 8. The roadway according to claim 7, wherein the linear part is formed in the lower part of the protective wall. Protective wall. 9. a base having a substantially flat lower surface; a tapered interior extending from the base; an upright portion extending from the intermediate portion; including a duct formed in the base, the duct comprising a first portion and a second portion; and the first portion and the second portion extend from the first and second ends of the protective wall portion. Tapered in the direction of the central part, Roadway protection wall. 10. The first portion and the second portion are interconnected to form a first end of the protective wall. The protection according to claim 9, forming a continuous linear section from the point to the second end. wall. 11. Claim 1 wherein the first portion and the second portion are frustoconical in shape. Protective wall described in item 0. 12. The first portion and the second portion are interconnected to form a first end of the protective wall. 10. The second end forms a continuous linear section extending from the second end. protective wall. 13. Claim 12, wherein the continuous linear portion is parallel to the lower surface of the base. Protective wall as described.