JP4513146B2 - Manufacturing method of wearing band seat - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention mainly has a structure in which a water-permeable buffer layer composed of a water-impervious sheet and a nonwoven fabric is polymerized after a primary lining with concrete for preventing peeling is applied to a natural ground such as a tunnel excavation tunnel. the waterproof composite sheet, in which relates to the manufacturing method of the stop wearing strip seat to use water-permeable buffer layer construction works for water stopping structures such as tunnel construction which is stretched in the natural ground side.
[0002]
[Prior art]
In the tunnel construction site as a civil engineering construction site, in order to collect and drain the spring water from the ground of the excavation mine shaft to the bottom of the mine shaft, a waterproof sheet with a predetermined width is attached via a fastening means such as nailing. A structure is known which is stretched and fixed to the surface of the primary lining by spraying concrete (see Japanese Utility Model Publication No. 62-35760). The water-stop sheet used here is a composite sheet formed by polymerizing a plastic water-proof sheet such as a vinyl chloride sheet or EVA sheet and a water-permeable buffer layer such as a non-woven fabric. By facing the mountain side and spreading and fixing, the spring water can be collected and drained to the side bottom of the tunnel along the water-stop sheet surface. Moreover, the water-permeable buffer layer relieves the filling pressure applied to the water-stop sheet during secondary lining, and prevents the water-stop sheet from being damaged.
[0003]
[Problems to be solved by the invention]
In the above-described construction for the water stop, the water stop sheet is stretched and fixed by connecting the edge of the water-permeable buffer layer constituting the water stop composite sheet through a metal belt seat (seat bar). Therefore, a method of fastening with fastening means such as nailing is employed. However, the construction in which the belt seat is fitted to the edge of the water-absorbing buffer layer by using a fastening means such as nailing is performed by the operator with the water-stopping composite sheet together with the hand. Must be done while supporting. In such a working mode, the water-stop composite sheet is heavy in weight, and the metal belt seat (seat bar) is short, so that workability is poor and construction time and construction accuracy are also adversely affected. There is a risk that.
[0004]
The present invention has been made based on the above circumstances, and is fastened with an engagement surface that can be engaged like a hook-and-loop fastener on a water-permeable buffer layer made of a nonwoven fabric or the like constituting a composite sheet for waterstop. The band seat is pre-engaged and held, and then the water-stop composite sheet can be easily fixed to the natural ground side via the fixing band seat by fastening means such as nailing. They are intended to provide a method of manufacturing a stop wearing band seat to be used for civil engineering work for the water stop structure.
[0005]
[Means for Solving the Problems]
For this reason, in the present invention, as has been clarified in the illustrated embodiment, a water-stopping composite sheet having a structure in which a water-impervious sheet and a water-permeable buffer layer made of non-woven fabric or the like are polymerized is used for a ground such as a tunnel excavation tunnel. The waterproofing water for civil engineering work, where the water-permeable buffer layer is faced and spread on the mountain side, and the edge of the water-permeable buffer layer is peeled off from the water-proof sheet, and the edge of the water-permeable buffer layer is fixed to the natural mountain side by fixing means such as nailing. Engagement of the structure , which is formed by a flexible hard synthetic resin strip, and a plurality of engagement protrusions are formed integrally on the back surface intermittently along the longitudinal direction of the strip with stop wearing strip seat to have a surface, the waterproof composite sheet, said mating surface of the stop wearing strip seat is previously Kakarigotome wear surface along said edge of the through aqueous buffer layer In this state, the edge of the water-permeable buffer layer is placed on the fastening means by the fastening means via the fastening belt seat. It assumes a method of manufacturing the stop wearing band seat for use in secured been civil engineering for water stopping structure mountainside.
[0006]
In the present invention, in the manufacturing method of the fastening belt seat, the fastening belt seat is formed of a flexible hard synthetic resin belt plate, and a plurality of engagement protrusions are formed on the back surface of the belt plate. An engagement surface having a structure integrally formed intermittently along the longitudinal direction is provided, and the engagement surface intersects an engagement-shaped protrusion extending in the longitudinal direction of the belt seat body in the longitudinal direction. In other words, the ridges are formed in an intermittent manner by forming incisions at intervals of several millimeters.
[0007]
Furthermore, according to the present invention, in the method for manufacturing the fastening band seat, the fastening band seat is formed of a flexible hard synthetic resin band plate, and a plurality of engagement projections are formed on the back surface thereof. An engagement surface having a structure integrally formed intermittently along the longitudinal direction of the plate is provided, and one or more rows of rib pieces are integrally formed on the surface along the longitudinal direction. The ribs are formed intermittently by forming incisions at intervals of several millimeters by crossing the longitudinally extending protrusions extending in the longitudinal direction of the belt seat body in the longitudinal direction. The strip is characterized in that the ridges extending in the longitudinal direction of the belt seat body are formed in an intermittent manner by forming incisions at intervals of several mm across the longitudinal direction. .
[0008]
[0009]
[0010]
[0011]
In the water stop structure and the fastening belt seat 5 having such a structure, when the water stop composite sheet 1 is stretched and fastened to the ground surface such as a tunnel excavation tunnel, the fastening means 4 such as nailing is used. Before, the belt seat 5 can be held in advance on the surface of the water-permeable buffer layer 3 of the waterstop composite sheet 1 by the engagement by the hook-and-loop fastener method. Therefore, there is almost no need to hold the belt seat 5 by hand during the fastening operation, and the fastening work is facilitated, so that shortening of the working time and improvement of working accuracy can be expected.
[0012]
The fastening band seat 5 can be used as a fastening band seat for various uses for fastening a non-woven fabric by nailing or the like in addition to the water stop structure for civil engineering. For example, a fastening band seat for fastening a non-woven fabric for interior or exterior for soundproofing or sound insulation to the wall surface or floor surface of a building, a fastening band seat for fastening and fixing the periphery of a jutan Can be used.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Next, the present invention will be described with reference to the first embodiment shown in FIGS.
[0014]
A tunnel to which the water-stopping structure for civil engineering work according to the present invention is applied has a configuration schematically shown in FIG. That is, a primary lining layer 12 made of sprayed concrete is formed on the tunnel ground 11, and a water-stop composite sheet 1 is stretched and fastened thereon, and a concrete secondary lining is formed thereon. Layer 13 is cast. In the construction of the water stop construction, the water stop composite sheet 1 having a predetermined width is stretched and fastened from one side to the other side along the width direction (vertical direction) of the tunnel. The sheet 1 is stretched and fastened with its front and rear edges joined in a watertight manner in the front-rear direction of the tunnel.
[0015]
The water-stop composite sheet 1 has a structure in which a plastic water-proof sheet 2 such as a vinyl chloride sheet or EVA sheet and a water-permeable buffer layer 3 made of a nonwoven fabric are polymerized. The two are stretched facing each other, and are fastened to the side of the natural ground by fastening means 4 such as nailing.
[0016]
As shown in FIGS. 2 and 3, the fastening structure of the water-stop composite sheet 1 is such that a part of the water-blocking sheet 2 is peeled off at the edge of the water-stop composite sheet 1, The edge 3a is exposed. The edge 3a is fixed to the primary lining surface, which is the side surface of the natural ground of the tunnel, by fixing means 4 such as nailing through a fixing band seat 5 described later.
[0017]
And in this Embodiment 1, after each of the edge part of the adjacent water-stop composite sheet 1 is fixed by the above-mentioned structure, it is applied to the outer surface (inner side face of the tunnel) of the edge edge 2a of the adjacent water-proof sheet 2. By adhering or adhering the overlap sheet 9 formed of the same plastic sheet in a water-tight manner, the adjacent water-stop composite sheets 1 are connected in a water-tight manner, and a water-tight water stop coating can be realized.
[0018]
As shown in FIG. 4, the fastening band seat 5 of the first embodiment is formed of a flexible hard synthetic resin band plate, and a large number of strips are formed on the back surface (the ground surface) of the belt seat body 5 a. The engaging projection 6a has an engaging surface 6 having a structure integrally formed, and a plurality of rows of rib pieces 7 which are continuous in the longitudinal direction are integrally formed on the surface (inner side surface of the tunnel). The engaging protrusion 6a is formed of a hook-shaped protrusion whose tip is bent into a hook shape, and is formed in a plurality of rows. A notch 6b is formed between the engagement protrusions 6a of each row, and the width of the notch 6b is approximately 1 mm to several mm. For each adjacent row, the hook direction of the engaging protrusion 6a is the reverse direction (if the folding direction of the hook in the first row is the forward direction, the folding direction of the hook in the second row is the backward direction).
[0019]
It is preferable in manufacturing that the engagement protrusion 6a is formed by cutting the continuous protrusion along the longitudinal direction with a cut process of approximately mm intervals.
[0020]
During the fastening operation of the water-stop composite sheet 1, the engagement surface 6 on the back surface of the fastening band seat 5 is pressed along the exposed edge 3 a of the water-permeable buffer layer 3, and the engagement protrusion 6 a is pressed. The edge 3a of the nonwoven fabric of the water-permeable buffer layer 3 is held in advance by a hook-and-loop fastener method. At the time of this pressing operation, the engaging protrusion 6a is elastically deformed and engages with the nonwoven fabric fiber. In this way, the edge of the water-permeable buffer layer 3 is formed on the primary lining surface, which is the side surface of the natural ground of the tunnel, by the fastening means 4 such as nailing through the fastening belt seat 5 which has been previously engaged and held. The part 3a is fixed.
[0021]
FIG. 5 or FIG. 6 shows the fastening band seat 5 according to the second or third embodiment.
In the fastening band seat 5 of the second embodiment shown in FIG. 5, the engaging protrusion 6a is formed in an arrow shape. The arrow shape is formed in two steps and has elasticity.
[0022]
Further, in the fastening band seat 5 of Embodiment 3 in FIG. 6, the rib pieces 7 formed in a plurality of rows on the surface are required to cross the protrusions extending in the longitudinal direction of the belt seat body 5a in the longitudinal direction. The cuts 7a are formed at intervals (1 mm to several mm intervals) to form an intermittent shape.
[0023]
By forming the rib pieces 7 in an intermittent manner, bending work along the inner surface of the tunnel of the belt seat 5 is facilitated, and it is possible to prevent falling off due to the repulsive force from the water-permeable buffer layer 3 during the fastening work.
[0024]
FIG.7 and FIG.8 shows other embodiment of the connection structure of the composite sheet for water stop adjoining.
In the embodiment of FIG. 7, the ear edge 3 a of the water-permeable buffer layer 3 is cut by means such as cutting (not shown) rather than the ear edge 2 a of the plastic water shielding sheet 2 in one adjacent water-stopping composite sheet 1. The exposed surface of the water-insulating sheet 2 of the water-stopping composite sheet 1 adjacent to the extended edge of the ear edge 2a of the water-insulating sheet 2 after being fastened in advance. In addition, it is liquid-tightly attached by means such as adhesion or welding. As a result, water-tight coating between adjacent water-stop composite sheets 1 and 1 can be realized.
[0025]
In the embodiment of FIG. 8, the edge portion 3 a of the water-permeable buffer layer 3 is cut by means such as cutting (not shown) rather than the ear edge 2 a of the water-impervious sheet 2 in both adjacent water-stop composite sheets 1. Then, after shortening in advance, after the fastening as described above, the back surfaces of the ear edges 2a of the two water shielding sheets 2 are joined to each other, and are attached in a watertight manner by means such as adhesion or welding. As a result, watertight coating between adjacent water-stop composite sheets can be realized.
[0026]
In each of the above-described embodiments, an example in which the water-stop composite sheet 1 is extended in an arch shape in the left-right direction of the tunnel is described. However, the composite sheet for water stop 1 is linearly extended in the longitudinal direction (front-rear direction) of the tunnel, and the left and right edges (upper and lower edges) of the water stop composite sheet 1 adjacent in the left-right direction (up-down direction). You may make it fix and weld via the fastening band seat 5 concerning this invention.
[0027]
【The invention's effect】
The present invention is now described in detail above, with respect to the natural ground side of the tunnel boring galleries, the waterproof composite sheet when stretched fastened, before the use of fastening means such as nailing, previously, this Since the fastening band seat manufactured by the method of the invention can be held on the surface side of the water-permeable buffer layer of the composite sheet for waterproofing by the engagement by the hook-and-loop fastener method, the fastening work is facilitated and the work Expected to shorten time and improve work accuracy. According to the method of the present invention, the fastening band seat is formed by cutting the ridges constituting the engagement surface or rib piece in the longitudinal direction by cutting them at intervals of several millimeters. This makes it easy to bend along the inner surface of the tunnel, and it is easy to create a long fastening belt seat that can be prevented from falling off due to the repulsive force from the water-permeable buffer layer during fastening work. It is preferable in terms of manufacturing.
[0028]
Moreover, the fastening belt seat manufactured by the method of the present invention can be widely used as a belt seat for fastening a nonwoven fabric or jutan, and the efficiency and accuracy of the fastening operation can be improved.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view showing the structure of a tunnel to which the present invention is applied.
FIG. 2 is an exploded cross-sectional view showing Embodiment 1 of the water stop structure for civil engineering work according to the present invention.
FIG. 3 is also a cross-sectional view of the main part.
FIG. 4 is also a longitudinal sectional view (A) and a transverse sectional view (B) of the fastening band seat according to the first embodiment.
FIG. 5 is also a longitudinal sectional view (A) and a transverse sectional view (B) of a fastening band seat according to a second embodiment.
FIG. 6 is also a longitudinal sectional view (A) and a transverse sectional view (B) of a fastening band seat according to a third embodiment.
FIG. 7 is also a cross-sectional view showing another embodiment of a connection structure for a water stop composite sheet.
FIG. 8 is a cross-sectional view showing still another embodiment of the connection structure for the water stop composite sheet.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Composite sheet for water stop 2 Water-impervious sheet 2a Ear edge 3 Water-permeable buffer layer 3a Edge 4 Fastening means 5 Fastening belt seat 5a Belt seat main body 6 Engagement surface 6a Engagement protrusion 6b Cut 7 Rib piece 7a Cut 9 Overlap sheet 11 Tunnel ground 12 Primary lining layer 13 Secondary lining layer

Claims (2)

A water-stopping composite sheet having a structure in which a water-permeable sheet and a water-permeable buffer layer made of nonwoven fabric or the like are polymerized is spread with the water-permeable buffer layer facing the ground such as a tunnel excavation tunnel, a civil engineering for waterproofing structures fastened by fastening means such as nailing the edges of the water permeable buffer layer of the release state to the ground mountain side, the flexible hard synthetic resin of the strip is formed, the back surface using a stop wearing strip seat to have a mating surface of the structure formed integrally with the longitudinal direction along intermittently like a number of engaging projections strip to the waterproof composite sheet The edge of the water-permeable buffer layer is in the state in which the engagement surface of the fastening band seat is pre-engaged and secured to the surface along the edge of the water-permeable buffer layer. through the stop wearing band seat for use in secured been civil engineering for water stopping structure on the ground mountainside by the fastening means In the manufacturing method,
The fastening band seat is formed of a flexible hard synthetic resin band plate, and a plurality of engaging projections are integrally formed intermittently along the longitudinal direction of the band plate on the back surface thereof. The engagement surface is formed by forming an engagement-shaped ridge extending in the longitudinal direction of the belt seat body by cutting at intervals of several mm across the longitudinal direction. A method for manufacturing a fastening band seat, wherein the protrusions are formed in an intermittent manner. In the manufacturing method of the said fastening band seat used for the still water structure for civil engineering works of Claim 1,
The fastening band seat is formed of a flexible hard synthetic resin band plate, and a plurality of engaging projections are integrally formed intermittently along the longitudinal direction of the band plate on the back surface thereof. The surface is formed integrally with one or more rows of rib pieces along the longitudinal direction, and the engaging surface is provided with an engaging-shaped protrusion extending in the longitudinal direction of the belt seat body. The ribs are formed in an intermittent manner by forming incisions at intervals of several mm crossing in the longitudinal direction, and the rib piece is a protrusion extending in the longitudinal direction of the belt seat body. A method of manufacturing a fastening band seat, characterized in that the protrusions are formed in an intermittent manner by forming incisions at intervals of several mm across the longitudinal direction.

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