JPH1148852A - Method for carrying ready-mixed concrete on slope or unleveled ground - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the deterioration of ready-mixed concrete and to improve a carrying efficiency when the ready-mixed concrete is carried to a concrete- placing position of a slope or an unleveled ground where a ready-mixed concrete car can not enter. SOLUTION: A crawler dump car 2 is arranged at the foot S0 of a slope S which is the end of an entry road of a ready-mixed concrete car 1 and the cover 10 of a concrete-charging port 8 of a hermetically closed vessel 5 placed on a deck 4 is opened. The chute 12 of the ready-mixed concrete car 1 is put in the concrete-charging port 8 to transfer ready-mixed concrete C into the vessel 5. Then the vessel 5 is tightly closed by closing the cover 10 and then the crawler dump car 2 is moved to a position in the slope S where the concrete is placed. The cover 10 of the concrete-discharging port 9 of the vessel 5 is opened and the vessel is dumped to place the ready-mixed concrete C on the position where the concrete is placed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for transporting ready-mixed concrete, and more particularly to a method for transporting ready-mixed concrete on sloping or irregular terrain where ready-mixed concrete vehicles cannot enter.

[0002]

2. Description of the Related Art In the construction of slopes and irregular terrain, the grade is extremely steep, the unevenness is severe, and the width is narrow. Often cannot. In such a case, a method has conventionally been adopted in which ready-mixed concrete is transferred from a ready-mixed truck to a bucket of a backhoe and transported to the casting location by the backhoe.

[0003]

If it takes a long time to carry the backhoe, the quality of the ready-mixed concrete deteriorates due to the separation of the aggregate and the hardening of the concrete during that time. In particular, when the temperature is high, the degree of the deterioration is remarkable.

[0004] In addition, only the capacity of the bucket can be transported at one time, and there is a high possibility that the ready-mixed concrete will be spilled during the transportation, resulting in poor efficiency. Therefore, a technical problem to be solved for preventing the fresh concrete from deteriorating during transportation and improving the transportation efficiency arises, and an object of the present invention is to solve the problem.

[0005]

SUMMARY OF THE INVENTION The present invention has been proposed to solve the above-mentioned problem. A crawler dump is disposed at an end of an approach road of a ready-mixed concrete vehicle, and a crawler dump is provided on a bed of the crawler dump. After transferring the ready-mixed concrete from the ready-mixed concrete vehicle to the vessel of the formula, the crawler dump is allowed to travel to a concrete placing point on the sloped ground or uneven terrain, opening the outlet of the vessel and dumping the vessel to the inside. The present invention provides a method for transporting ready-mixed concrete on sloped or irregular terrain in which ready-mixed concrete is dropped onto a concrete placing site.

[0006]

FIG. 1 is a block diagram showing an embodiment of the present invention.
This will be described in detail with reference to FIG. In Figure 1, reference numeral S is slope, ready-mixed concrete vehicles 1 shall be entered to the foot S ₀ of the slopes S. A step d is provided at the end of the approach road of the ready-mixed concrete vehicle 1 (that is, at the foot S ₀ ), and a side (left side of the paper, hereinafter referred to as “lower d)
_L ". ) Is set lower than the front side of the ready-mixed car approaching road (right side of the paper, hereinafter referred to as “upper stage d _U ”). And
As well as dispatch the fresh concrete vehicle 1 in the upper d _U, the lower d _L to dispatch a crawler dump 2.

[0007] Since the crawler dump 2 travels on the crawler 3, it can travel freely even on an incline or uneven ground that the ready-mixed car 1 cannot enter. Further, the bed 4 of the crawler dump 2 is formed so as to tilt upward (dump) with the rear end as a fulcrum. A vessel 5 is installed on the carrier 4.

Here, the crawler dump 2 has a loading capacity of 10
Ton's are used. The height of the vessel 5 is 1
The length is 200 mm, the lateral width is 1500 mm, the front-rear length excluding the rear protruding portion 6 of the triangle in side view is 2000 mm, and the capacity of the vessel 5 is about 2.5 m ³ . It should be noted that the numerical values listed here are merely examples, and it goes without saying that the present invention is not limited thereto.

The vessel 5 is hermetically sealed, in which not only the bottom surface and the front, rear, left and right side surfaces but also the top surface are covered with a top plate 7. A concrete inlet 8 is provided substantially at the center of the top plate 7, and a concrete outlet 9 is provided at the tip of the rear projecting portion 6 (that is, at the rear end of the vessel 5). And, the concrete inlet 8 and the concrete outlet 9 are covered with doors 10 and 11 of a door type, respectively.

While the lid 11 of the concrete discharge port 9 is kept closed, the lid 10 of the concrete input port 8 is opened, and the tip of the chute 12 attached to the rear of the ready-mixed concrete car 1 is put into the concrete input port. Apply to upper edge of mouth 8. Then, while rotating the mixer 13 of the ready-mixed car 1, the ready-mixed concrete C inside the mixer 13 is led out to the chute 12. As a result, the ready-mixed concrete C is transferred from the concrete inlet 8 into the vessel 5 along the chute 12. As mentioned above, the maximum transfer amount per transfer is about 2.5
m is ^3.

Instead of providing a step d at the foot S ₀ , as shown in FIG. 2, the foot S ₀ is left flat, and a slope 14 is installed at the flat foot S _0. By riding the ready-mixed concrete car 1 on the back, the chute 12 of the ready-mixed concrete car 1 is moved to the concrete inlet 8 of the vessel 5.
May be applied to the upper edge.

After the transfer, the concrete inlet 8 is closed by the lid 10. As a result, the vessel 5 is completely sealed. Therefore, the internal fresh concrete C
Is not exposed to sunlight or the open air. For this reason, the deterioration rate of the ready-mixed concrete C becomes very slow.

[0013] Thereafter, until the reclamation area S ₁ of the slopes S shown in FIG. 3, to run the crawler dump 2. No matter how much the crawler dump 2 tilts or swings during this traveling, the fresh concrete C does not fall out of the vessel 5. This is because the vessel 5 is completely sealed. Thus to, when compared with conventional backhoe significantly without any loss of large amounts of ready-mixed concrete C, and can be transported to reclamation areas S ₁ while maintaining its quality as much as possible.

[0014] Then, after arrival reclamation areas S _1, the crawler dump 2 is positioned at a predetermined concrete設箇plant P, with open lid 11 of the concrete outlet 9, the crawler dump 2 dump jack 15 To dump the carrier 4. As a result, the vessel 5 is also dumped, and the ready-mixed concrete C inside is discharged from the concrete discharge port 9 and dropped into the concrete placing point P. The lower outer portion 16 of the rear protruding portion 6 of the vessel 5 has a slope which is inclined upward toward the rear in the normal state, and a concrete discharge port 9 is provided at the tip thereof. Since the slope of the portion 16 is inclined downward from the horizontal to the rear, the ready-mixed concrete C hardly stays at the corners in the vessel 5, and almost the entire amount of the ready-mixed concrete C that has been transported is reduced. The concrete can be dropped onto the concrete placing point P.

[0015] The crawler dump 2 that has finished dropping is located on a slope S
Return to the foothills S ₀ down, and will be repeating the operation to reprint the ready-mixed concrete from the ready-mixed concrete car again. The present invention can be variously modified without departing from the spirit of the present invention, and it goes without saying that the present invention extends to the modified ones.

[0016]

As described above, the present invention transports ready-mixed concrete from the approaching road end of the ready-mixed concrete vehicle to the closed vessel provided in the crawler dump, so that separation of aggregates and Deterioration of ready-mixed concrete such as hardening of concrete can be suppressed as much as possible, and the quality can be sufficiently maintained until the concrete is dropped onto a concrete placement site on a sloped or irregular ground. Also, compared with the capacity of the backhoe bucket, a much larger amount of ready-mixed concrete can be loaded, and the ready-mixed concrete does not spill during transportation. Therefore, the required ready-mixed concrete can be transported with a small number of reciprocations and without waste. As a result, the casting time is reduced as much as possible,
In turn, this will contribute to shortening the construction period and reducing construction costs.

[Brief description of the drawings]

FIG. 1 is a side view showing a state in which ready-mixed concrete is transferred from a ready-mixed truck to a vessel of a crawler dump at a foot of a slope which is an end of an approach road of a ready-mixed truck.

FIG. 2 is a side view showing another embodiment of FIG. 1;

FIG. 3 is a side view showing a state in which ready-mixed concrete is dropped from a vessel of a crawler dump into a concrete pouring location on a slope.

[Explanation of symbols]

P Concrete placing place in sloped ground S Sloped ground S ₀ Foot of sloped land (end of approach road of ready-mixed concrete car) 1 Ready-mixed concrete car 2 Crawler dump 4 Crawler dump carrier 5 Vessel 8 Vessel concrete inlet 9 Vessel concrete outlet

Claims (1)

[Claims] Claims 1. A crawler dump is disposed at an end of an approach road of a ready-mixed concrete truck, and after ready-mixed concrete is transferred from the ready-mixed concrete vehicle to a closed vessel provided on a bed of the crawler dump,
The crawler dump is driven to a concrete placing place on an inclined ground or an irregular ground, and the outlet of the vessel is opened, and the vessel is dumped to drop the ready-mixed concrete into the concrete placing place. Method for transporting ready-mixed concrete on sloping or uneven terrain.