JPH10280404A - Pile driving method for constructing offshore stage and offshore stage construction method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To efficiently drive a pile without any need of laterally moving a construction machine in constructing an offshore stage. SOLUTION: A sliding stage 3 formed to have a roller device 9 and to be capable of traveling on an existing connecting member 2 by a sliding jack 10, is installed and a crane 4 capable of slewing is installed arm the sliding stage 3. Also, one end of a new connecting member 2A is jointed to the forward end of the existing connecting member 2, and the other end thereof is jointed to the sliding stage 3 thereby holding the new connecting member 2A on the sliding stage 3. In addition, a new pile is hoisted with the crane 4 and driven into the underwater ground at the forward end of the newly jointed connecting member 2A. After the new pile is driven, the sliding stage 3 with the crane 4 laid thereon is moved forward by the sliding jack 10 and succeeding piles are sequentially driven into the underwater ground.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pile driving method for constructing an offshore stage and an offshore stage construction method.

[0002]

2. Description of the Related Art Conventionally, pile driving such as a pier is conventionally performed by a sea driving method using a pile driving ship or the like, or by placing a construction machine on a driven pile.
The construction was carried out by the hand-rolling method, where the construction was advanced while placing the pile in the front area.

However, in this hand-rolling method, since the construction is performed in the front area, the construction machine needs to be moved laterally, which is disadvantageous in terms of the amount of movement.

[0004]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems of the prior art, and makes it possible to drive the front and side piles without laterally moving the construction machine. It is an object of the present invention to provide a pile driving method and a sea stage construction method using the pile driving method.

[0005]

According to the present invention, a pile is driven into the ground below the sea surface at predetermined intervals in the front-rear direction,
When the tips of such piles are made of fine material, many rows of such fine materials are arranged side by side at predetermined intervals in the left-right direction, and when constructing a marine stage with the fine materials supported by the piles. In the pile driving method, a roller stage is provided, and a sliding stage that moves on an existing structural material by a sliding jack is provided, and a swingable crane is mounted on the sliding stage.

Then, one end of the new structural member is connected to the tip of the existing structural member, and the other end is connected to the sliding stage and supported by the sliding stage. Next, a new pile is suspended by the crane, and the pile is driven into the ground below the sea surface at the tip of the newly connected structural member.

[0007] When the driving of the new pile is completed, the sliding stage on which the crane is mounted is moved forward by the sliding jack.
Pile will be sequentially placed on the ground under the sea surface.

Further, the crane is turned 90 degrees to the right and to the left, respectively, and a new pile is hung by the crane, and the pile is placed on the ground below the sea surface at the tip of the laterally adjacent structural member. After the casting and the placing of a new pile are completed, the sliding stage on which the crane is mounted is moved forward by the sliding jack, and the pile is sequentially placed on the ground below the sea surface in the above-described manner.

Further, a floor steel material is bridged between adjacent structural members, a concrete floor is applied on the floor steel, and the concrete floor is further asphalt-paved to construct an offshore stage.

[0010] A sliding stage which is provided with a roller device and moves on an existing structural material by a sliding jack is provided, a crane is mounted on the sliding stage, and a pile is driven by using a swivelable crane. The pile driving on the front can be performed efficiently, and the pile can be driven on the side without turning the construction machine by moving the crane 90 degrees to the right and left. , Greatly improve construction efficiency.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows an embodiment in which a marine stage is constructed in accordance with the pile driving method of the present invention, wherein A is a completed marine stage portion after asphalt pavement, and B is
A concrete floor panel portion before asphalt pavement, C, indicates a portion where the pile has been driven and the pile is finely formed with a structural material.

At the end of the portion C, a crane 4 mounted on a sliding stage 3, which will be described in detail later, is disposed. The crane 4 is provided with a swivel table and turns, and has a structure known per se.

FIG. 2 is a plan view showing an embodiment in which a marine stage is constructed according to the pile driving method of the present invention. For example, in FIG. 1, the range of a relatively thick line indicates that one crane 4
Is the range in which the crane 4 connects the structural members 2 at the position D.

In FIG. 1, reference numerals 5 and 6 denote other cranes arranged in the portion C, and reference numeral 7 denotes a transport trolley for transporting piles and the like carried by a barge 8.

3 and 4, on the ground below the sea surface,
A pair of diagonal piles (may be a single vertical pile) 1 are driven at predetermined intervals in the front-rear direction, and the tips of the piles 1 are finely formed with a structural material 2. As shown in FIG. 1 and FIG. 2, a large number of rows of materials 2 are arranged side by side at predetermined intervals in the left-right direction, and a marine stage is constructed by fine materials 2 supported by piles 1.

Next, the procedure of pile driving will be described with reference to FIGS. 10 to 15 together with FIGS.

A roller stage 9 having a truss structure to which a roller device 9 is mounted and which is moved by a sliding jack 10 is provided on the existing pile head structural member 2. The roller device 9 includes a sliding roller 9A shown in FIGS. 6 and 7, and a side roller 9B shown in FIGS. On the sliding stage 3, a crawler crane 4 having a swivel table and capable of turning is mounted. Further, the sliding stage 3 is provided with an offshore hydraulic hammer 11, a power pack for hammer 12, a generator 13, a hydraulic unit 14, and the like.

The sliding stage 10 is moved by the sliding jack 10 from the position of the sliding stage 3 shown in FIG. 10 to the position shown in FIGS.

A new pile-headed structural member 2A with a template having a sheath tube 15 attached to the distal end shown in FIG. 5 is hung by a crane 4 to one end of the existing pile-headed structural member 2 and connected to one end thereof.
(FIGS. 3 and 12) The other end of the new structural member 2A, that is, the distal end to which the sheath tube 15 is attached is connected to the sliding stage 3 by the connecting device 16, and the distal end of the new structural member 2A is connected to the sliding stage 3. Support with. (FIGS. 3 and 12) The coupling device 16 is a structure material attracting jack 17 shown in FIG.
And the structure pulling metal fitting 18, and operates the structure pulling jack 17 to prevent the tip of the structure 2A from sagging.

The pile 1A to be cast is suspended by the crane 4, and the pile 1A is passed through the sheath tube 15 attached to the tip of the newly connected structural member 2A. (FIG. 13) The hammer 11 is used to drive the pile 1A into the ground D below the sea surface. (FIGS. 14 and 15) When the driving of the new pile 1A is completed, the sliding stage 9 equipped with the crane 4 is moved to the sliding jack 1.
1 to move forward, and in the above-described manner, piles are sequentially driven into the ground under the sea surface.

FIG. 16 shows a state in which a pile is cast in the above-described manner and the pile is finely formed with a structural material. As shown in FIG. 17, a floor steel material 19 is bridged between adjacent structural materials 2 and 2. , And further arrange the formwork 20, apply a concrete floor panel on the floor steel material,
Furthermore, the concrete floor is paved with asphalt.

[0022]

According to the present invention, there is provided a roller stage, which is provided with a sliding stage which is moved on an existing structural material by a sliding jack, a crane is mounted on the sliding stage, and a swivelable crane is used. When the pile driving is completed, the sliding stage is moved forward by the sliding jack, so that the crane that hangs the pile at the next pile driving position can be moved. Installation can be performed efficiently. In addition, by turning the crane 90 degrees in the right and left directions, pile driving on both sides can be performed without requiring lateral movement of the construction machine, and construction efficiency can be greatly improved. Further, the present invention provides
Since the tip of the newly connected structural material is connected to and supported by the sliding stage, there is no need to cast a stake to support the tip of the newly connected structural material. It is effective.

[Brief description of the drawings]

FIG. 1 is a bird's-eye view showing an embodiment in which a marine stage is constructed according to a pile driving method of the present invention.

FIG. 2 is a plan view showing an embodiment in which a marine stage is constructed according to the pile driving method of the present invention.

FIG. 3 is a side view showing an embodiment in which a pile is driven by the pile driving method of the present invention.

FIG. 4 is a plan view side view showing an embodiment of driving a pile by the pile driving method of the present invention.

FIG. 5 is an enlarged view taken on line AA of FIG. 3;

FIG. 6 is a detailed side view of the sliding roller.

FIG. 7 is a detailed front view of a sliding roller.

FIG. 8 is a detailed side view of a side roller.

FIG. 9 is a detailed front view of a side roller.

FIG. 10 is a side view showing a process of the pile driving method according to the present invention, in which a sliding stage is at an original position.

FIG. 11 is a side view showing the sliding stage moved.

FIG. 12 is a side view in which new structural members are connected.

FIG. 13 is a side view of a pile suspended by a crane.

FIG. 14 is a side view of driving a pile with a hammer.

FIG. 15 is a side view after the pile has been driven.

FIG. 16 is a plan view in which a pile is cast and a pile head is made of a fine material.

FIG. 17 is a plan view in which a floor steel material is stretched between adjacent structural members.

[Explanation of symbols]

 1, 1A ... pile 2, 2A ... fine material 3 ... sliding stage 4 ... crawler crane 5 ... crane 6 ... crane 7 ... carrier trolley 8 ... barge 9・ ・ ・ Roller device 10 ・ ・ ・ Sliding jack 11 ・ ・ ・ Offshore hydraulic hammer 12 ・ ・ ・ Power pack for hammer 13 ・ ・ ・ Generator 14 ・ ・ ・ Hydraulic unit 15 ・ ・ ・ Shell tube 12 ・ ・ ・ Lot DESCRIPTION OF SYMBOLS 13 ... Jack apparatus 14 ... Support pile 15 ... Sheath tube 16 ... Coupling device 17 ... Fine material pulling jack 18 ... Fine material pulling fitting 19 ... Floor steel material 20. ..Form frames

Claims (3)

[Claims] 1. A pile is laid on a ground under the sea surface at a predetermined interval in the front-rear direction, and a tip portion of the pile is finely formed with a structural material. In the pile driving method when constructing an offshore stage with structural members supported by piles, a roller device is provided, and a sliding jack is used to move over the existing structural materials with a row A sliding stage is provided, a swingable crane is mounted on the sliding stage, one end of a new structural member is connected to the tip of the existing structural member, and the other end is connected to the sliding stage. Supported by the sliding stage, suspending a new pile by the crane, driving the pile on the ground under the sea surface at the tip of the newly connected structural material, and finishing the driving of the new pile. When And moving the sliding stage equipped with a crane forward by the sliding jack and, according to the above-mentioned mode, sequentially driving piles on the ground below the sea surface. 2. Piles are laid at predetermined intervals in the front-rear direction on the ground below the sea surface, and the tips of the piles are formed with a structural material. In the pile driving method when constructing an offshore stage with structural members supported by piles, a roller device is provided, and a sliding jack is used to move over the existing structural materials with a row A sliding stage is provided, a swingable crane is mounted on the sliding stage, one end of a new structural member is connected to the tip of the existing structural member, and the other end is connected to the sliding stage. Supported by the sliding stage, a new pile is suspended by the crane, the pile is driven into the subsea ground at the tip of the newly connected structural material, and the crane is moved rightward. And turn 90 degrees to the left,
When a new pile is hung by the crane and the pile is driven into the ground below the sea surface at the tip of the lateral structural material adjacent to the structural material, the crane is driven. A pile driving method, wherein the mounted sliding stage is moved forward by the sliding jack, and piles are sequentially driven into the ground below the sea surface according to the above aspect. 3. A floor steel material is bridged between adjacent structural members,
The seabed stage construction method according to claim 1 or 2, wherein a concrete floor is applied on the floor steel material, and the concrete floor is further asphalt-paved.