JPS594800A - Method of executing partition wall of subway - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] The invention relates to a method for constructing bulkheads for underground passages in public ditches and sewer culverts.

Traditionally, in common sewers, the storage space for telephones, electricity, gas, water and sewage, etc. was separated by bulkheads, and in sewer culverts, sewage and rainwater were separated by bulkheads, resulting in a separate sewer system. It may be made available.

In such cases, it may be obvious when dividing an existing underground passage, but even when constructing a new underground passage, especially the shield method,
When constructing the main body using the push-pipe construction method, immersion method, etc., the partition wall is usually constructed after the construction of the main body.

This bulkhead is constructed by setting formwork, reinforcing bars, etc. inside the underground passage and pouring concrete, but it is extremely difficult to construct a high-quality reinforced concrete bulkhead due to the problems of concrete rolling and concrete breathing. In addition, since the transportation of various materials and the assembly and dismantling of formwork at a small construction site is extremely complicated, the idea of using precast concrete instead was proposed and has been put into practical use. For example,
As in No. 026829, a method has been proposed in which a precast concrete plate is carried into an underground passage using a transport truck and is attached to a building frame via a hole-in anchor driven into the top of a humid pipe. In these cases, special transport carts were used, which sometimes led to high costs, and the time it took to shuttle the carts back and forth required the priest's time and effort during field work.

This invention is a construction method developed in view of the above circumstances, and has made construction easier and more effective. The details will be explained below with reference to illustrated embodiments.

A indicates an underground passage serving as a common ditch, and a guide rail 1 is fixed to the ceiling of the underground passage frame in the length direction of the underground passage. The ceiling portion of the guide rail 1 is adhered to the shaped cross section using a gepoxy resin made of reinforced concrete, steel, FRP, or the like, or fixed using metal fittings such as anchor bolts. The unit bulkhead plate 2 is a reinforced concrete plate and a copper plate FRP.

It is made of a GRC board or the like, has a recess 3 formed in its upper part, is provided with casters 4, is suspended from a guide rail 1, and is structured so that it can be moved along the guide rail 1.

Note that the brackets may be assembled from the unit partition plate 2 without using the casters 4, and an anti-friction sheet such as a Teflon sheet may be interposed between the guide rail 1 and the bracket so that the brackets can be transported.

The required number of unit bulkhead plates 2 are sequentially conveyed from the shaft to a predetermined position in the underground passage, and then the unit bulkhead plates are lifted,
Make it touch the top of the body. A sealing material 5 is interposed between the ceiling of the frame and the unit partition plate 2, and cement paste or mortar 6 is injected into the gap between the guide rail 1 and the recess 3 of the unit partition plate 2 to fix both. . In addition, in the gap between the lower end of the unit bulkhead plate 2 and the underpass structure, a horizontal bar is poured to stop the bulkhead plate from descending, and then concrete is poured.
Alternatively, it is fixed by filling with mortar 7.

It is also possible to cast and fix invert concrete as shown in Figures 5 and 6. Furthermore, this unit bulkhead plate 2
is an underground passageway with a circular cross section and can be placed in an eccentric position. (See FIG. 4) The cross-section of the guide rail 1 is not limited to a shaped cross-section, but can also be a lip groove-shaped cross-section as shown in FIG. 7, or a dog-shaped cross-section. Furthermore, the casters 4 can be made removable from the unit partition plate 2 as shown in FIG. 8 so that they can be recovered.

Fig. 9 shows another invention in which a guide rail 1 is fixed to the floor of an underground passage A, NK casters 4 are provided 4° below the unit partition plate 2, and the unit partition plate is mounted on the guide rail 1. 2 are placed and transported one by one to a predetermined position, and then the upper and lower ends of the unit partition plates 2 are fixed to the underground structure. And if necessary, there is an auxiliary guide rail 1 on the ceiling.
2 can be provided to prevent the unit partition plate 2 from falling down.

By the way, by providing a backing 13 on the top or ceiling of the unit partition plate 2 and removing the casters 4, it is possible to move and rear the subsequent unit partition plate and to ensure a secure seal.

The present invention has the above-described structure, and a guide rail is provided at the mounting position of the bulkhead plate on the ceiling or floor of an underground passage, and the bulkhead plate is suspended or placed on the guide rail and transported. Therefore, it is easy to carry it into the underground passage.
Furthermore, once transported to a predetermined position, the partition plate can be fixed by filling the gap etc. with mortar at approximately that position, allowing quick construction, no special equipment is required, and less labor is required on site.

[Brief explanation of drawings]

Figure 1 is a sectional view of the construction process, Figures 2 and 3 are sectional views of important parts, Figures 4, 5, and 6 are sectional views of other embodiments.
7 and 8 are sectional views of essential parts of another embodiment, and FIG. 9 is a sectional view of another embodiment of the invention. A... Underpass, 1... Guide rail, 2... Bulkhead plate, 3... Four parts, 4... Casters, 5...
Sealing material, 6... Grout material, 7... Mortar Mataha Conch IJ -), 8... 91g
, 9.10... Invert concrete, 11... Guide rail, 12... Auxiliary guide rail, 13... Backing. Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 1 Figure 6 Figure 7 Figure 8

Claims (2)

[Claims] (1) A guide rail is fixed to the ceiling, unit bulkhead plates are suspended from the guide rails, and the unit bulkhead plates are sequentially conveyed to a predetermined position, and then the upper and lower ends of the unit bulkhead plates are fixed to the frame to form the bulkhead. A distinctive underground passage bulkhead construction method. (2) Fix a guide rail to the floor, place the unit partition plates on this guide rail and transport them one by one to a predetermined position,
A method for constructing a partition wall for an underground passageway, characterized in that the upper and lower ends of the unit partition wall plates are then fixed to a building frame to form a partition wall.