JP2000104257A - Installation method for hoisting equipment in constructing structure on slope - Google Patents

Abstract

PROBLEM TO BE SOLVED: To shorten the construction term are reduce the machinery cost by hoisting and moving heavy materials and machines from the initial stage of works in constructing a structure on a slope. SOLUTION: A slope 2 is excavated, foundation slabs integrated with bearing piles driven in the ground are formed on the ground face formed by the excavating works, and the construction for building a structure on the foundation slabs are executed. Before excavating the slope for the construction, a plurality of bearing piles 20a-20d are driven deep underground with the pile top parts projected upward from the ground surface and a tower crane 18 is erected on the top of them with the bearing piles set to crane bearing legs. The hoisted movement of materials, driving of other bearing piles in prescribed positions of the slope, excavating works on the slope and forming work of the foundation slabs are carried out using the tower crane.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for installing a hoist when constructing a structure on a slope.

[0002]

2. Description of the Related Art FIG.
FIG. 5 shows an intermediate construction stage in which the foundation work has been completed.

[0003] In the initial construction stage shown in FIG.
The truck crane 8 is installed on the flat ground 6 below the vehicle, and the material 10 brought into the flat ground 6 is moved to the upper flat ground 12 using the truck crane 8 or to the middle of the slope 2. ing.

[0004] Then, as shown in FIG.
Into the ground of the slope 2, the root 2 is cut off in a stepped manner, and the foundation slab 16 is formed on the stepped surface. A tower crane 18 has been installed as a heavy duty material and various construction machines can be lifted and moved to perform construction work after the middle term.

[0005]

However, in the above construction, the lifting work by the tower crane 18 cannot be performed from the initial construction stage, and the tower crane 18 is not operated for the first time in the middle construction stage in which the foundation slab 16 is formed. It can be used to lift heavy materials and machinery,
Inconvenience may occur in the preparation of the construction, and the construction period may be prolonged.

[0006] Further, when this work is performed, both the truck crane 8 and the tower crane 18 are required, which may increase the cost of machinery and equipment. The present invention has been made in view of the above circumstances, and when constructing a structure on a sloped land, it is possible to lift and move heavy materials and machines from the initial stage of construction to shorten the construction period, Moreover, it is an object of the present invention to provide a method of installing a hoist when constructing a structure on an inclined land where the cost of machinery and equipment can be reduced.

[0007]

In order to solve the above-mentioned problems, the present invention performs a root cutting operation on an inclined ground, and integrally forms a support surface driven into the ground with a ground surface formed by the root cutting operation. In the work of forming a basic foundation slab and constructing a structure on the foundation slab, before performing root cutting work on the sloping ground, the upper part of the pile was protruded upward from the ground surface at the center of the sloping ground. In this state, a plurality of support piles are driven deep into the ground, and these support piles are used as crane support legs, and tower tower cranes are set up above them. And the base slab is performed by using the tower crane.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION One embodiment of a construction work for constructing a structure on a slope according to the present invention will be described below with reference to the drawings. The same components as those shown in FIGS. 4 and 5 are denoted by the same reference numerals, and description thereof will be omitted.

In this embodiment, first, as shown in FIG. 1, a plurality of support piles 20a to 20a
Od is driven deep into the ground at predetermined intervals. At this time, the upper portions of the support piles 20a to 20d are projected above the ground surface of the sloped land 2.

Next, the support piles 20a to 20d are used as crane support legs, and these support piles 20a to 20d are used.
The tower crane base 18a is fixed to the upper end of the tower crane, and the tower 18b and the crane 18c are raised on the tower crane base 18a.

Next, the heavy material 2 carried into the flat ground 6 using the tower crane 18 installed on the slope 2
2 and various construction machines (not shown) are lifted to the upper flat ground 12 or lifted on the sloped land 2.

As shown in FIG. 2, in parallel with the lifting movement by the tower crane 18 described above, another support pile 24 is placed on the ground from below to above the sloping ground 2 at a predetermined interval, and underground. I will drive deep into it. Here, between the support piles 20a to 20d and the support pile 24 which are driven at the same height (the position in the front and back direction on the paper surface), a horizontal sheet pile (not shown) is buried to form a retaining wall. .

Next, as shown in FIG. 3, the sloped ground 2 is truncated in steps to form stepped surfaces, and on these stepped surfaces,
The base slab 26 integrated with the support piles 20a to 20d and the support pile 24 is formed.

Then, a column material and a wall material (not shown) are erected on the foundation slab 26 by using the tower crane 18, and a beam material (not shown) is stretched between the column materials. Build object 4. Here, the construction of the structure 4 on the foundation slab 26 on which the tower crane 18 stands is the final stage, and after the other structures 4 are completed, the crane section 18c, the tower section 18b, and the tower crane The base 18a is dismantled. And support pile 20a-2
Of the 0d, only a portion that can be used as a pillar or a wall of the structure 4 is left, and an unnecessary portion (a portion indicated by a broken line in FIG. 2) is removed by cutting.

According to the construction described above, the foundation slab 2 is cut from the initial construction stage, that is, by cutting the slope 2 into steps.
6 can be lifted by installing a tower crane 18 before the formation of the building 6. Since heavy materials and machines can be lifted and moved at an early stage of the construction, it is easy to determine the setup of the construction. It is possible to shorten the construction period.

Further, the support piles 20a to 20d used as the crane support legs of the tower crane 18 can be used together as pillars and wall materials of the structure 4 by cutting unnecessary portions. This eliminates the need for dismantling and extracting work, thereby reducing construction costs.

Further, when constructing the structure 4 on the sloping ground 2 according to the present embodiment, the conventional truck crane 8 is not required, so that the cost of machinery and equipment can be reduced.

[0018]

As described above, according to the method of installing a lifting machine for constructing a structure on a slope according to the present invention, the tower crane can be installed from the initial construction stage to perform the lifting work. Since heavy materials and machines can be lifted and moved from an early stage, the setup of the construction can be easily determined, and the construction period can be shortened.

The support pile used as the crane support leg of the tower crane can be used as a pillar or wall material of a structure by cutting unnecessary parts, so that the entire support pile can be dismantled and extracted. Becomes unnecessary, and the construction cost can be reduced.

Further, according to the present invention, a truck crane used in the conventional method is not required when constructing a structure on a slope, so that the cost of machinery and equipment can be reduced.

[Brief description of the drawings]

FIG. 1 is a diagram showing a state in which a tower crane is installed at a central portion of a slope before cutting off the slope in the present invention.

FIG. 2 is a view showing a state in which another support pile is driven into a slope as well as a support pile driven into a slope as a crane support leg.

FIG. 3 is a view showing a state in which a slope surface is formed by cutting a sloped land into a step shape, and a base slab is formed on the step surface.

FIG. 4 is a diagram showing a state in which a material is being lifted and moved using a truck crane in a conventional construction work of a structure on a sloped land.

FIG. 5 is a view showing a state in which a tower crane is installed on a foundation slab formed in conventional construction.

[Explanation of symbols]

 2 Sloped Land 4 Structure 18 Tower Crane 18a Tower Crane Base 18b Tower 18c Crane 20a-20d Support Piles (Crane Supporting Legs) 22 Materials 24 Support Piles 26 Foundation Slab

Claims (1)

[Claims] A root cutting operation is performed on an inclined ground, and a foundation slab integrated with a support pile driven into the ground is formed on a ground surface formed by the root cutting operation, and a structure is placed on the foundation slab. In the construction work, before performing the excavation work on the sloping ground, a plurality of support piles are driven into the center of the sloping ground with the pile upper part protruding upward from the ground surface to a depth of the ground. The tower is used as a crane supporting leg, and tower tower cranes are set up on top of them, while lifting and moving materials, driving another support pile into a predetermined position on the slope, cutting off the slope, and further foundation Slab forming work,
A method of installing a hoist when constructing a structure on a slope, wherein the method is performed using the tower crane.