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"MWG Method"-Temporary protective fence construction-

This method is to fill a continuous box-shaped steel frame (mesh wall) with earth and sand to form the foundation of a temporary rockfall protection fence, enabling rockfall protection during construction without rooting (pile driving) into the road surface.

NETIS number: KT-210101-A

 

*For sale only in the Japanese market

Product & Service

Features

Difference from conventional construction

Since rooting (piling) of the support columns is not required, there is no need to inspect underground burial sites. It is also an excellent method from the standpoint of environmental friendliness, as it produces little noise and vibration. In addition, road surface restoration is not required because the road is not damaged.

Construction Procedure

STEP1 Base plate installation

Base plates are installed to erect the support columns, and the base plates are connected to each other with connecting plates.

STEP2 Mesh wall installation

The mesh wall is deployed on the base plate. The mesh wall weighs approximately 60 kg/unit and can be smoothly transported, deployed, and installed by 3 or 4 people.

STEP3 Erection of support columns

Build the posts into the base plate and secure with bolts and nuts.

STEP4 Filling of filling material

Fill the inside of the mesh wall with filling material. On-site generated soil and soil residues can be used for filling material.

STEP5 Installation of horizontal sheet piles

The posts are connected to each other with transverse joints, and horizontal sheet piles are placed on the posts to complete the work.

Type/Standard

type Height (m) Width (m) number of cells Total length (m) Weight (kg) adoption
T-1.6 1.0 1.6 5.0 5.0 67 For H=5.0m
T-1.3 1.0 1.3 5.0 5.0 62 For H=4.0m
T-1.0 1.0 1.0 5.0 5.0 57 For H=3.0m

「“MWG Method”-Temporary protective fence construction-」の実績

Iwate Prefecture disaster prevention dam facility improvement project slope repair temporary rockfall protection fence installation (1063)
Iwate Prefecture disaster prevention dam facility improvement project slope repair temporary rockfall protection fence installation (1063)
  • [Products & Services]
    "MWG Method"-Temporary protective fence construction-
  • [Purpose / Application]
    Temporary construction / Rockfall protection / Earth retaining
  • [completion of construction]
    October 2016
  • [Location]
    Iwate
Nagano Prefecture disaster prevention temporary rockfall protection fence installation (1065)
Nagano Prefecture disaster prevention temporary rockfall protection fence installation (1065)
  • [Products & Services]
    "MWG Method"-Temporary protective fence construction-
  • [Purpose / Application]
    Temporary construction / Rockfall protection / Earth retaining
  • [completion of construction]
    June 2019
  • [Location]
    Nagano
Iwate Pref. General road surface repair temporary rockfall protection fence installation (1064)
Iwate Pref. General road surface repair temporary rockfall protection fence installation (1064)
  • [Products & Services]
    "MWG Method"-Temporary protective fence construction-
  • [Purpose / Application]
    Temporary construction / Rockfall protection / Earth retaining
  • [completion of construction]
    June 2015
  • [Location]
    Iwate
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