JPS60164515A - Construction of banking - Google Patents

Abstract

PURPOSE:To reduce the weight of walling body by a method in which large numbers of first burying nets to traverse the imaginary sliding face of a banking are laid at intervals in the heightwise direction of the banking, and large numbers of second burying nets whose front ends are fixed to the slope wall of the banking are laid horizontally. CONSTITUTION:A banking 1 is constructed by erecting a wall 3 by orderly stacking up many concrete panels 3a on the ground and laminarly spreading and stacking up a banking material 4 on the back of the concrete panels 3a at the same time. In stacking up the banking material 4, many first burying nets 7 extending by a length (l) by traversing an imaginary sliding face 6 from the slope 5 are horizontally laid at intervals in the heightwise direction of the banking 1, and many second burying nets 9 whose front ends are fixed to the concrete panels 3a are horizontally laid at intervals in the height direction of the banking 1 on the slope tamping portion 8.

Description

[Detailed description of the invention] This invention relates to a method of constructing an embankment.

Conventionally, when constructing an embankment, a wall was erected along the slope, and this wall bore the earth pressure of the ground behind the slope, and at the same time, the soil on the bank part was washed away due to rain, weathered, etc. There are products designed to protect slopes by preventing peeling. However, since the above-mentioned walls are mainly installed to bear the burden of the back ground, they must be made strong by increasing the thickness or by installing pillars.
The drawback was that it not only increased construction costs but also took a long time.

This invention eliminates the drawbacks of the conventional methods as described above, and provides a method for constructing an embankment that allows the wall to be made of a light material, thereby reducing construction costs and shortening the construction period. The purpose is to provide

That is, this invention is a method of constructing an embankment by erecting a wall on the ground and stacking embankment materials in layers behind the wall, in which the embankment material is piled up so that the expected sliding surface of the embankment is crossed. A large number of first buried nets are laid at intervals in the height direction of the embankment, and a large number of second buried nets whose front ends are fixed to the wall body are laid in the soil part of the embankment in the height direction of the embankment. This is a construction method for embankments that is characterized by laying earth horizontally at intervals.

An embodiment shown in the drawings will be described below.

1 is an embankment, and this embankment 1 is made by stacking a large number of concrete panels 3a etc. one after another on the ground 2 to erect a wall 3,
Concurrently with the stacking of the concrete panels 3a, the embankment material 4 is spread behind them in layers, piled up, and compacted.

In this invention, when stacking the embankment material 4, a large number of first buried nets 7 extending from the slope 5 to the expected slip surface 6 by the fixed length l are placed at intervals in the height direction of the embankment 1. A large number of second buried nets 9(
(Generally, the embedment length is about 50 cm) are laid horizontally at intervals in the height direction of the embankment l. It is convenient if the front end of the second buried net 9 is embedded in the concrete panel 3a in advance. As shown in FIG. 3, holes 10 are provided in the concrete panel 3a as necessary, and after the embankment material 4 is piled up,
The rod 11 may be driven horizontally into the embankment l through the hole 10.

According to the embankment 1 as described above, the first buried network 7 bears the sliding force acting on the entire embankment due to its shear strength,
In addition, the second buried net 9 bears all the forces that act locally on the soil layer 8 due to its shear strength, so that almost no earth pressure acts on the wall 3, and the second buried net 9 Since the front end is fixed to the wall 3, it receives a small tensile force from the wall 3, allowing the wall 3 to become self-supporting and anchored to the embankment. It is sufficient to protect the slope by preventing the soil from being washed away, weathering, and peeling off, and can be of a minor value.

Note that the second buried net 9 is laid with a slight slack, so that even if the embankment material 4 is piled up, the embankment material 4 in the soil wing part 8 is only slightly pushed out. Pressure has no effect. In order to cope with such displacement of the embankment material 4, an elastic plate may be provided on the back surface of the wall 3.

This invention is as described above, and when stacking embankment materials, a large number of first buried nets are laid horizontally at intervals in the height direction of the embankment across the expected sliding surface of the embankment, and
In the soil part of the embankment, a large number of second buried nets whose front ends are fixed to the wall are laid horizontally at intervals in the height direction of the embankment, so that almost no earth pressure acts on the wall. Moreover, since the second buried net allows the wall to become self-supporting and anchored to the embankment, the wall can be made lightweight, construction costs can be kept low, and the construction period can be shortened. There is.

[Brief explanation of the drawing]

Fig. 1 is a vertical cross-sectional view showing one embodiment of the method of this invention;
The figure is a perspective view showing the second buried network, 8r! FIG. 3 is a perspective view showing a driving rod. 1... Embankment 2... Ground 3... Wall body 4... Embankment material 5... Slope surface 6... Expected bevel surface 7... First buried net 8... Doba section 9...Second buried network Figure 1'yP, Figure 3 procedural amendment letter to Figure 2, March 1980; Kazuo Wakasugi, Commissioner of the Japanese Patent Office, 1981 Patent Application No. 17472 2, Invention Name of the method of constructing the embankment 3 Relationship with the person making the amendment Case Applicant: 2-5-3 Misaki-cho, Chiyoda-ku, Tokyo Tekken Construction Co., Ltd. Representative: Shige Oishi 4th Agent 6 Contents of the amendment Patent claim Correct the range as shown in the attached sheet. 7. List of Attached Documents Paper 1 General Rules Paper Claim 1. In a method of constructing an embankment by erecting a wall on the ground and stacking embankment materials in layers behind the wall, the embankment material When piling up the embankment, cross the expected slip surface of the embankment.
A large number of first buried nets are laid horizontally at intervals in the height direction of the embankment, and a large number of second buried nets whose front ends are fixed to the wall are laid horizontally at intervals in the height direction of the embankment. A method of constructing an embankment characterized by laying it horizontally at intervals in the horizontal direction. 2. The method according to claim 1, wherein a hole is provided in the wall and a rod is driven into the embankment through the hole.

Claims (1)

[Claims] 1. In a method of constructing an embankment by erecting a wall on the ground and piling up embankment materials in layers behind this wall, when stacking the embankment material, a large number of First buried nets are laid at intervals in the height direction of the embankment, and a number of second buried nets whose front ends are fixed to the wall are placed at intervals in the height direction of the embankment in the soil part of the embankment. A method of constructing an embankment characterized by placing it and laying it horizontally.