JPS6316535B2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention provides prefabricated lightweight steel materials as an alternative to conventional construction methods such as stone masonry earth retaining works, PNC board masonry earth retaining works, concrete block masonry earth retaining works, and concrete retaining walls in order to stabilize slopes. It is used for assembly, slope stabilization, and channel construction.

For the wall surface part, the strut material 1 and the joint material 3 are attached in an intersecting or parallel manner, and the back filling part 8 is integrated with the structure by filling with earth and sand or soil cement. Or use sandbags instead of pasting wire mesh 5 and vegetation 6,
Stack into a structure.

The support struts 1 are constructed using an elevation angle corresponding to the back earth pressure in order to stabilize the structure.

Since a part of the support material 1 is driven into the ground and filled with earth and sand or soil cement, etc. and tamped and fixed, the purpose of the anchor pile and the plate is achieved, and since it provides pull-out resistance, it can be used even in clay soil where frictional force cannot be expected.

The structure is lightweight and integrated with the buried soil, so it has almost the same weight as the earth and sand, so it requires less ground support. In addition, since the structure is made up of prefabricated members such as struts 1, supporting materials 2, joint materials 3, bolts 7, and steel piles 4, the structure can change freely even if the ground is soft and uneven settlement occurs. Therefore, stress concentration is less likely to occur and cracks do not occur.

The length of the joint material 3 can be adjusted if there is an obstacle when connecting horizontally by making holes at regular intervals. It is also possible to transform the structure according to the topography of the construction site. Because the slope stabilization structure is made entirely of prefabricated parts produced in factories, it is easy to construct, shortening the construction period, and does not require skilled workers, which saves labor and allows for safe work.

To improve the corrosion resistance of steel materials, anti-rust coating and plating can be applied. By using a zinc wire mesh 5 with a small mesh for the wall surface part, earth and sand are retained and the water permeability is high, so water pressure due to stagnant water on the back side is reduced. It also facilitates the attachment of vegetation 6 by the wire mesh 5.

Since it is a lightweight prefabricated member, it is possible to create a structure of a size appropriate to the construction site, so it can be transported on people's shoulders even in places that cannot be transported by car etc., so it can be used for restoration of collapsed areas in mountains and emergency relief in disaster areas. Suitable for construction work such as restoration waste disposal.

In places where the foundation surface is rock and the steel piles 4 cannot be driven, holes are drilled to the required depth, a plate plate 10 is fixed with anchor bolts 11, and a shaped steel support material 1 is fixed on the plate plate 10 with bolts 7. In this case, it is preferable to use the steel pipe 12 for packing and drive it together with the anchor bolt 11.

Conventional stone masonry earth retaining works, PNC board masonry earth retaining works, concrete block masonry earth retaining works, concrete retaining wall earth retaining works, etc., use heavy materials and are difficult to transport to construction sites that cannot be transported by car etc. This requires advanced technology, and the use of concrete is constrained by weather conditions. Quality control of materials and construction management of structures are time-consuming, and in order to satisfy the stability conditions of the structure, the weight and cross section of the structure itself must correspond to back earth pressure, and if the ground is soft, uneven settlement or rear There are disadvantages such as uneven changes due to earth pressure and damage to the structure. The present invention involves assembling a structure by joining each member of prefabricated lightweight steel materials with bolts, and does not require skilled workers.It is easy to construct, and the load can be widely distributed against earth pressure. It is compatible with the ground and can be constructed even in areas with low ground bearing capacity. The components are small and lightweight, making them easy to carry even in construction sites with unfavorable road conditions or steep slopes, making it suitable for construction (curves) depending on the site.
The amount of earthwork will not become excessive. All parts are factory produced and subject to complete quality control. Since it is a simple structure, construction management is easy. The disadvantages of conventional stone masonry earth retaining works, PNC board masonry earth retaining works, concrete block masonry earth retaining works, concrete retaining wall earth retaining works, etc. are solved without being restricted by weather conditions.

As the strut material 1, L, C, and H type steel can be selectively used.

[Brief explanation of the drawing]

Figure 1a shows a cross-sectional view of the legal structure of the present invention, b shows a front view of the structure, c shows a plan view of the base of the structure, and d shows the structure. The figures shown in f, g, i, j, k, l, m, and n are shown in a, b, and c as a stop construction method and channel construction. This is a drawing of an applied construction method showing that similar effects can be obtained. FIGS. 2a to 2g are drawings showing details of each member when assembled. 1... Strut, 2... Shoring material, 3... Joint material, 4... Steel pile,
5...wire mesh, 6...vegetation, 7...vault, 8...earth and sand,
9...Backing gravel, 10...Plate board, 11...Anchor bolt, 12...Steel pipe for packing, 13...Sapling.

Claims (1)

[Claims] 1. A support 1 with an acute angle formed between a horizontal part and an inclined part is provided, and a locking part formed by hanging the end of the horizontal part downward is provided integrally with the support, and the horizontal part of the support is A connection hole for vertical connection is provided near the end of the section, a plurality of connection holes are provided for horizontal connection in the support, a plurality of the support are installed on the ground, and these support 1 are connected horizontally and vertically with splicing material 3, and further fixed with shoring material 2 and steel piles 4. A plate plate 10 is attached to the bottom of the horizontal part of the pillar, and earth and sand, soil are attached to the back side of the pillar. A slope stabilization method characterized by filling the wall with filler such as cement and integrating it into a wall structure.