JP2005133348A - Continuous construction method of revetment, and method of widening river or the like - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a construction method for efficiently repairing a revetment of a river or a dike by continuously pressing in steel pipe piles without needing a large-scale temporary device, and to provide a method of widening the river or the like utilizing the construction method. <P>SOLUTION: In this continuous construction method of the revetment, equipment such as a crane is arranged ready to work on a steel pipe pile line PL, and the steel pipe pile line PL is constructed at the concrete revetment using a steel pipe pile press-in device 11 capable of rotationally pressing in the steel pipe piles P. While obtaining reaction from the steel pipe pile line PL, the steel pipe piles P are rotationally pressed in to construct a continuous wall. The continuous wall is constructed using this method, and then a working device or the like for carrying out widening work is disposed near the steel pipe pile line PL to remove sediment or the like on the river side or to dredge the nearby water bottom. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a method for continuously constructing a seawall for repairing or reinforcing a seawall (hereinafter referred to as a concrete seawall) composed of a concrete seawall or stone material such as a river or a dike, and a river, a swamp or a coast using the same. This is related to the widening method.

  In order to prevent the flooding of the river, work has been done to increase the flow area by widening the river width or dredging the river bottom, but it was impossible to widen the width of the revetment beyond the conventional method. . In addition, the shape of the conventional revetment is often a concrete block loaded on the slope, which resulted in narrowing the width of the river.

  A conventional method for deepening a riverbed is disclosed in, for example, JP-A-9-31935. In this method, a steel sheet pile wall is installed opposite to a river, supported by a beam, and a moving table on which a crane is mounted is movable on a traveling rail.

In such a conventional apparatus, since heavy machinery enters the river, the flow of the river has to be stopped, so that the repair work becomes large, cost and manpower, and the construction period is long. Furthermore, since the flow path becomes narrow, there has been a problem that it becomes impossible to remove the heavy machinery when the water is increased.
JP-A-9-31935

  The present invention has been made in view of the above points, and does not require a large-scale temporary device or temporary work, and the steel pipe piles are continuously placed in a stable state to efficiently revet a river or a dike. It provides a construction method that can be renovated or reinforced, and a widening method for rivers, swamps, coasts, etc. using it.

  The gist of the present invention is that a steel pipe pile row is constructed on a concrete revetment using a steel pipe pile press-fitting device capable of rotary press-fitting of steel pipe piles, and a reaction force is obtained from the steel pipe pile row while continuing to the steel pipe pile row. This is a continuous revetment construction method in which steel pipe piles are rotationally press-fitted to construct a continuous wall.

  In addition, the gist of the present invention is that a steel pipe pile row is constructed on a concrete revetment using a steel pipe pile press-fitting device capable of rotationally press-fitting a steel pipe pile, and the steel pipe pile for excavation is press-fitted while obtaining a reaction force from the steel pipe pile row. This is a continuous construction method of a revetment in which a hole having a predetermined depth is excavated with respect to a concrete revetment, and then the steel pipe pile for excavation is pulled out and the steel pipe pile is pressed into the hole to construct a continuous wall.

  Further, the gist of the present invention is that in the above-described continuous construction method of a revetment, ancillary equipment such as a crane, a steel pipe pile, and the like necessary for mounting a steel pipe pile or the like on a steel pipe pile press-fitting device is connected to a steel pipe pile row. This is a continuous construction method of revetment where a continuous wall is constructed so that it can be worked on.

  Further, the gist of the present invention is that the continuous wall is constructed using the above-described continuous construction method of the revetment, and then the work device for performing the widening work or the removal device for performing the removal work is provided on the steel pipe pile row or the steel pipe pile row. This is a method of widening a river or the like that is disposed in the vicinity and removes earth and sand on the widening side of the constructed continuous wall or drowns the water bottom in the vicinity.

According to the invention of claim 1, concrete revetment renovation work, revetment reinforcement work, river dredging work, etc. can be performed safely and efficiently.
In particular, it is possible to perform repair work in rivers and the like that cannot be widened conventionally, and no temporary work is required to perform this widening work, so the construction period can be shortened and the construction cost can be reduced. Moreover, since a steel pipe pile is pressed in while rotating, an apparatus such as an earth auger is not required.
According to the invention of claim 2, in addition to the effect of claim 1, the excavation steel pipe pile is extracted after excavating with the steel pipe pile for excavation provided with the bit only in the concrete portion of the revetment, and then the general steel pipe pile, that is, the bit The cost of the construction can be reduced by press-fitting the steel pipe pile without any.
According to the invention of claim 3, since there is no need for installation work for installing ancillary equipment such as a crane, a steel pipe pile conveying device, etc. necessary for mounting the steel pipe pile to the steel pipe pile press-fitting device, the construction period is shortened accordingly. This can reduce the construction cost.
According to the invention of claim 4, in removal work such as earth and sand for widening rivers or dredging work in rivers, removal work or dredging work without throwing work machines for removal or dredging into the water of rivers etc. Therefore, there is no need for temporary work associated with removal work and dredging work, such as changing the river flow path. In addition, these operations became possible even when the water volume increased, such as during a flood.

In the best mode for carrying out the present invention, ancillary equipment such as a crane is arranged so as to be able to work on a steel pipe pile row, and a steel pipe pile row is placed on a concrete revetment using a steel pipe pile press-fitting device capable of rotationally press-fitting a steel pipe pile. It is a continuous revetment construction method in which a continuous wall is constructed by rotating and press-fitting a steel pipe pile continuously into the steel pipe pile row while building and obtaining reaction force from the steel pipe pile row.
Moreover, the best mode for carrying out the present invention is to construct a continuous wall using the above-described continuous construction method for revetment, and then install a working device for widening work or a removing device for removing work on a steel pipe pile row. Or it is the widening method of the river etc. which arrange | positions in the steel pipe pile row | line | column vicinity, removes the earth and sand etc. of the river side of the constructed said continuous wall, or drowns the water bottom of the vicinity.

  FIG. 1 shows an embodiment of the present invention. FIG. 1 is a front view for explaining a method for constructing a steel pipe pile, FIG. 2 is a cross-sectional view taken along the line II in FIG. 1, and FIG. 4 is an explanatory view showing the third embodiment, FIG. 5 is an explanatory view showing the fourth embodiment, FIG. 6 is an explanatory view showing the fifth embodiment, and FIG. 7 is a sectional view of a conventional revetment.

The revetment continuous construction method of the present embodiment will be described with reference to the drawings.
In FIG. 1, the code | symbol 11 is a steel pipe pile press-fit apparatus, and it moves self-propelled on the steel pipe pile row | line | column PL. Reference numeral 12 is a crane, 13 is a steel pipe pile conveying device, 14 is a steel pipe pile carriage, and 15 is a dredge device. All these incidental equipment can be moved on rails 20 laid on the steel pipe pile row PL. is there. The code | symbol P is a steel pipe pile.
Although the said steel pipe pile row | line PL is what press-fits the steel pipe pile P continuously, it can also press-fit the steel pipe piles P and P mutually and can also press-fit with a fixed space | interval. .

The continuous revetment construction method of the present embodiment is a steel pipe pile press-in device 11, a crane 12, which is arranged on a steel pipe pile row PL in which a plurality of steel pipe piles P, P are continuously press-fitted into a concrete revetment 102 provided in a river. This is performed using the steel pipe pile conveying device 13 or the like.
The steel pipe pile press-in device 11 can press-fit the steel pipe pile P while rotating the steel pipe pile P, and at the same time, only the pressure from above without rotating the steel pipe pile P as in a normal press-fitting machine. Can be press-fitted. Since the steel pipe pile is press-fitted by rotation in this way, a large-scale device such as an earth auger is not required, and the operation is quick.

  Although FIG. 1 shows a state where steel pipe piles P are already press-fitted into the concrete revetment 102, at the beginning of construction, the steel pipe pile press-in machine 11 obtains a reaction force from a known reaction force cradle and obtains the appropriate number. The steel pipe pile P is press-fitted. And the steel pipe pile press-in machine 11 is arrange | positioned in this steel pipe pile P, a reaction force is acquired from the steel pipe pile P pressed in after that, and the new steel pipe pile P is press-fitted.

First, using the steel pipe pile press-in device 11, the steel pipe pile P is transported from the carriage 14 to the steel pipe pile press-in device 11 by the crane 12 arranged on the steel pipe pile row PL and mounted. Thereafter, the steel pipe pile press-fitting device 11 is operated to continuously press-fit the steel pipe pile P into the existing steel pipe pile P. In this case, the steel pipe pile P may be press-fitted in contact with the existing steel pipe pile P, but may be press-fitted at a certain distance. The reaction force at this time is obtained from the steel pipe pile row PL.
In this embodiment, in order to punch out the concrete revetment 102, a steel pipe pile for excavation provided with a bit at the tip is used as the steel pipe pile. The steel pipe pile P for excavation is pressed into the support layer 109 while rotating, and a steel pipe pile row PL, that is, a continuous wall is constructed.

  Thereafter, the concrete revetment 102 and earth and sand on the river 101 side of the steel pipe pile row PL constructed as described above are removed. This removal is performed by a crusher (not shown) such as a breaker arranged on the steel pipe pile row PL. As a result, the width of the river 101 is widened, and the river can be effectively used.

Furthermore, the riverbed 103 near the shore as shown in FIG. 2 is dredged to widen the river. This dredging work is performed by the dredging work device 15 arranged on the steel pipe pile row PL. This device may be arranged not only on the steel pipe pile P but on the side portion.
As described above, the surface of the steel pipe pile row PL is covered with the decorative plate K after the concrete revetment 102 and earth and sand removal work and the widening work of the river 101 are completed.

As described above, according to the present embodiment, it is possible to perform repair work in a river that cannot be widened conventionally. In this case, since the conventional revetment structure can be utilized, the construction period is shortened and the construction cost is reduced, and the steel pipe pile P becomes a large strength member and the revetment is reinforced.
In addition, since the reaction force for press-fitting can be obtained from the steel pipe pile, the apparatus becomes compact, and there is no need for temporary work for widening work, and the renovation work for the concrete revetment can be performed safely and efficiently.
In this embodiment, the river 101 has been described. However, the present invention can be applied to marshes, lake dikes, and coastal breakwaters and achieves the same effect.

Next, a second embodiment of the present invention will be described.
In this embodiment, the excavation steel pipe pile P is press-fitted into the concrete revetment 102 while obtaining a reaction force from the steel pipe pile row PL as in the first embodiment. When it reaches the depth of, stop the press-fitting.
Thereafter, the steel pipe pile P for excavation is pulled out by the steel pipe pile press-fitting device 11, and the steel pipe pile row PL which is a continuous wall is constructed by placing the general steel pipe pile P in the excavated hole and press-fitting it. Is.

  This embodiment has the effects described in the first embodiment, but also has the following effects. That is, only the portion of the concrete revetment is excavated with a steel pipe pile for excavation, and then the portion of the soil is pressed into a general steel pipe pile, that is, a steel pipe pile without a bit, so that the construction cost can be reduced.

Example 3 is shown in FIG. 4, and the steel pipe pile P of Example 1 or Example 2 is press-fitted into the river side position from the upper end of the concrete revetment 102.
In this embodiment, since the press-fitting distance of the steel pipe pile P to the concrete revetment 102 is shortened, the press-fitting can be easily performed, and the earth and sand to be removed is small, and the footing is also partially removed, so that the construction period can be shortened. .

Example 4 is shown in FIG. 5 and is a case where the revetment is constructed higher than the road. For such a revetment, not only the river 101 side but also the road side concrete revetment and earth and sand 105 are removed. . This has the advantage of widening the road.
In this case as well, since all the work is performed on the steel pipe pile row PL, the traffic is not hindered without traffic of a construction truck or the like.

  Example 5 is shown in FIG. 6, and the steel pipe pile P is press-fitted into the footing 108 at the base of the concrete revetment 107. This embodiment is intended to reinforce an existing revetment.

Front view explaining how to construct steel pipe piles Sectional view taken along line I-I in FIG. II-II sectional view of FIG. Explanatory drawing which shows Example 3. Explanatory drawing which shows Example 4. Explanatory drawing which shows Example 5. Cross section of conventional revetment

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 Steel pipe pile press-in apparatus 12 Crane 13 Conveying apparatus 14 Carriage 15 Dredge apparatus 20 Rail 101 River etc. 102 Concrete revetment 103 River bottom 105 Sediment etc. (widening part)
P Steel pipe pile (steel pipe pile for excavation and general steel pipe pile)
K decorative board

Claims (4)

  A steel pipe pile row is constructed on a concrete revetment using a steel pipe pile press-fitting device that can press-fit steel pipe piles, and a steel pipe pile is continuously pressed into the steel pipe pile row while receiving reaction force from the steel pipe pile row. A method of continuous construction of revetments that build walls.   A steel pipe pile row is constructed on the concrete revetment using a steel pipe pile press-fitting device that can press-fit the steel pipe pile, and the steel pipe pile for excavation is press-fitted while obtaining a reaction force from the steel pile pile row to a predetermined depth with respect to the concrete revetment. A continuous construction method for revetment in which a continuous wall is constructed by excavating a hole in the hole and then pulling out the steel pipe pile for excavation and press-fitting the steel pipe pile into the hole.   In the method for continuously building a revetment according to claim 1 or claim 2, ancillary equipment such as cranes, steel pipe piles and other conveying equipment necessary for mounting steel pipe piles on a steel pipe pile press-in device can be operated on a steel pipe pile row. A revetment continuous construction method in which a continuous wall is constructed by placing it on the wall.   A continuous wall is constructed using the method for continuously building a revetment according to claim 1 or claim 2 or claim 3, and then a work device for performing a widening operation or a removal device for performing a removal operation is provided on a steel pipe pile row or a steel pipe pile row. Widening method for rivers, etc., placed in the vicinity and removing the earth and sand on the widening side of the continuous wall constructed above or dredging the nearby water bottom.

Images