KR20100089984A

KR20100089984A - The method of curb construction by multi screw jack

Info

Publication number: KR20100089984A
Application number: KR1020090009195A
Authority: KR
Inventors: 조동구
Original assignee: 조동구
Priority date: 2009-02-05
Filing date: 2009-02-05
Publication date: 2010-08-13

Abstract

PURPOSE: A method of curb construction using a multi-screw jack is provided to achieve high quality of curb by placing curb in a specified position and finishing work through a single process of placing concrete. CONSTITUTION: A method of curb construction using a multi-screw jack(s) is as follows. The multi-screw jack is installed corresponding to vertical and horizontal boundary lines, wherein the multi-screw jack comprises a post, a height adjusting bolt, and a support plate. Curb(3) are placed in a work direction using manpower or construction machinery.

Description

The Method of Curb Construction by Multi Screw Jack}

Construction method of boundary stone in civil engineering and landscape

In general, the road boundary stone is divided into a road and a road boundary boundary that separates a driveway and a pedestrian road, and a road boundary stone that directly separates a driveway and a complex, and a road boundary stone that divides a pedestrian road and a complex.

In addition, the boundary stone has a shape of a side opening with an average slope of 4% at a constant width in order to drain the surface rainwater generated in the roadway in the longitudinal direction.

As a material used as road boundary stone, many precast concrete products have been used. However, due to the damage caused by freezing of winter, it is not easy to remove the concrete in the side part during frequent replacement and replacement. It is often adopted to repair only by removing boundary stones due to excessive occurrences. However, many problems have been derived.

Figure 01 is a cross-sectional view showing a conventional road boundary stone construction structure.

Looking at the conventional boundary stone construction, after the ground (base) is chopped, the foundation concrete (①) is placed on the ground at a suitable height at the position where the road boundary stone (③) is to be placed,

When the foundation concrete (①) is cured to a certain degree and has the strength that the uneven settlement due to the weight of the road boundary stone (③) does not occur, but when it is judged that the cast concrete is not easily cured, the worker puts the After spraying mortar (②) on to absorb the moisture of concrete, the road boundary stone (③) is put on,

At this time, in order to adjust the height of the road boundary stone, the worker taps the road boundary stone up and down so as to maintain the proper height by using a hook, and if the weight of the road boundary itself is equal to or lower than the lower boundary concrete, After collecting the lower part and proceeding to adjust the height repeatedly, even if this construction road boundary stone (③) and the base concrete (①) of the lower can not be said to be compressed with the boundary stone with sufficient flatness,

The height and horizontality of the road boundary stone is that the height and the position of the road boundary stone ③ by the operator's manual work while the foundation concrete (①) is not solidified.

The workers who perform these tasks are required to have a high level of skill and can only temporarily work when they have a certain hardness before the foundation concrete (①) is completely hardened. I have a problem that I can't.

When the road boundary stone (③) is placed on the foundation concrete (①), and the foundation concrete (①) is completely hardened after adjusting the position, formwork (④) is installed on both sides and concrete (⑤) on the front and rear surfaces of the road boundary stone, respectively. The construction will be completed by pouring).

By the way, as shown in the concrete is separated into the foundation concrete (①), which supports the boundary stone, and the front side mouth portion and the rear concrete for the fall prevention, it is not only difficult to construct and cumbersome work, but also to separate casting Crack is easy to occur in the joint portion for the cause of defects, as well as there is a problem that the construction period is extended as the work process is divided.

After fixing the road boundary stone at a certain position, it finishes the work with one-time concrete pouring without any distinction, which reduces the process easily and induces high quality control according to the one-piece concrete pouring.

The above problems were solved at once by constructing the preliminary boundary stone with the structure that supports the boundary stone to a certain height in the ground according to the design drawing, and then pouring concrete.

A screw formed in the vertical direction holds the heavy object up as a jack. The four bolts (⑥) of the upper panel (⑦) adjust the height of the horizontal and vertical part of the boundary stone, and the average weight is about 150㎏ It is designed to move easily and is used to maintain the design dimension to be maintained between the boundary stone and the ground.

In the method of constructing the road boundary stone using this method, after installing multi screw jacks (ⓢ) according to the vertical line and the horizontal type, and placing the road boundary stone (③) in the working direction in turn by using manpower or construction equipment,

The present invention is to install the front and rear formwork after laying the boundary stone up by the spacing distance of the design book using the props of multi-screw jack in the construction method of the boundary stone, which was separated and constructed in the existing construction method, and only one concrete pouring therein As concrete and concrete are integrally constructed, concrete with sufficient strength grabs boundary stone, so it is stable to conduction or settlement and enables high quality side construction, and also simplifies construction and finishes work with economic reduction and economic feasibility. .

Therefore, in order to support the boundary stone, small screw jacks similar to the screw jacks commonly used in construction work are made of recycled vinyl, and horizontal bolts can be installed on the upper panel to adjust the height of the terminal linear with the screw jacks. In the process of installing the boundary stone, four bolts were installed to ensure flatness horizontally, and the four bolts were placed in the center protrusion to easily adjust the planar linearity of the boundary stone to minimize the frictional force with the bottom of the boundary stone.

In order to prevent the boundary stone from being pushed back due to the concrete jungle during the concrete placing, the spacer is installed in the boundary stone joint to prevent the spacer from being pushed by wood or other parts.

By removing the internal bubbles with vibrates, etc. to allow the concrete to be sufficiently filled in the lower surface of the boundary stone when placing concrete, or allowing the worker to carry out sufficient concrete compacting work for removing voids during finishing of the front part.

It will be a construction method so that high quality side structures can be constructed.

The multi screw jack devised in the present invention will be used as a material for securing the spacing when the heavy construction is to be installed at a certain separation distance, and also used as a support material at the bottom when there is a task to secure the flatness of a wide place. It is possible.

In particular, in recent years, the landscaping of rooftops has increased, so that the landscaping soil is separated from the slabs by a certain distance in the rooftops. It will be able to secure some space.

Drawing 01: Design drawing of road boundary stone (existing construction drawing)

Figure 02: Perspective view showing exploded configuration of multi screw jack

Drawing-03: Installation process of screed frame in construction order of road boundary stone

Drawing-04: Arrangement of multi-screw jacks after installing the screed

Drawing-05: Mounting a road boundary stone on a multi-screw jack

Drawing-06: Formwork installed on the front and back of the road boundary stone

Drawing-07: Concrete placing fixing road boundary stone

Figure 08: a perspective view showing an embodiment of embedding a multi-screw jack,

Figure-09: Adjustment of longitudinal linearity with multi screw jack

10: Perspective view of horizontal adjustment using multi screw jack

Figure-11: To prevent the boundary stone from being pushed back during concrete pouring

Spacer Installation

Drawing-12: Curing after concrete pouring

Drawing-13: Completed road boundary stone construction

Claims

Screws formed in the vertical direction to play the role of jack to support the heavy object from the bottom up to the lower panel (⑦) and the pedestal body including the screw (⑧) of the screw type connecting the struts are coupled,

Four bolts (⑥) are installed on the upper panel (⑦) to adjust the height of the horizontal and vertical part of the boundary stone, and four bolts (⑥) are centered on the bolts (⑥) to benefit horizontal movement by the design line of the boundary stone. The convex portion protrudes and the granite boundary stone with an average weight of 150 kg is designed for easy movement.

The vertical screw (⑧) is used to maintain the design dimensions to be maintained between the boundary stone and the ground, the vertical screw has four rotary knobs to rotate the left and right even after placing the heavy weight is designed so that the height can be easily adjusted The multi-screw jack (ⓢ) is located on the road boundary stone seam so that two bolts (⑥) each adjust the horizontal height of the fine boundary stone at the position where the two boundary stones are joined.

It is a multi-screw jack (ⓢ), characterized in that it is designed in the form of a protrusion that protrudes convexly to minimize the surface friction force to adjust the horizontal shape of the road boundary stone.

In the method of constructing the road boundary stone using this method, the ground of the part where the road boundary stone is to be installed is subjected to sufficient flat work and compaction work according to the specification, and through the surveying work, the flat boundary of the road boundary stone is used as a lumber or pin etc. ) And then install the standard frame for the vertical and horizontal lines using a thin thread

According to the standard frame, multi screw jack () is placed in the boundary stone joint area, and the height is adjusted with screw jack (⑧) as much as the height of the boundary stone in the ground according to the design book.

After arranging the road boundary stone according to the design book on the ground of the construction site of the road boundary stone, the road boundary stone (③) is placed on the multi-screw jack (ⓢ) by manpower or construction equipment in the direction of work progress, and then the screw Adjust the vertical height for the vertical alignment of the road boundary stone (③) by adjusting the rotation handle of the jack (⑧).

In the subsequent process, the horizontal boundary of the road boundary stone on the multi-screw jack (ⓢ) is moved horizontally along the plane line, and then the horizontal position of the road boundary stone is adjusted.

Form the mold (④) on which the concrete supporting or fixing the road boundary stone will be placed with L-shaped sidewalls, and install the formwork (④) on both sides of the road boundary stone according to the design dimensions so that the formwork does not move during concrete placement. Going through the tight fixing

As the next process, when concrete (⑤) is cast using a concrete chute, jungle phenomenon occurs due to the height difference, and road boundary stone (③) is prevented to prevent the road boundary stones precisely arranged by road alignment. Install a spacer between the rear formwork (④) and

When concrete is poured at low speed or a trem is attached to ready-mixed concrete chute to prevent concrete from splashing on the road boundary stone as much as possible when concrete is placed, for fixing the multi screw jack (ⓢ) installed on the lower part of the road boundary stone and the back To make sure that the concrete jaws are secured sufficiently, and to fully fill the lower part of the road boundary stone, the concrete vibrator is used to eliminate the air bubbles generated during the concrete placement.

After the concrete is cured after a certain period of time by removing the formwork (④) and the spacer (⑪) to simplify the road boundary stone construction process and quality control according to the specification, it is possible to integrate the road boundary stone using multi-screw jack (ⓢ) It is a construction method.