CN2556269Y

CN2556269Y - Drain-type composite rubber waterstop

Info

Publication number: CN2556269Y
Application number: CN 01265744
Authority: CN
Inventors: 吕康成
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-10-18
Filing date: 2001-10-18
Publication date: 2003-06-18
Anticipated expiration: 2011-10-18

Abstract

The utility model provides a drain-type composite rubber water stop tie, which belongs to a tunnel and an underground engineering concrete lining three joints (namely, a construction joint, an expansion joint and a settlement joint) built-in water stop tie. The utility model consists of a bypass, a flange, an expansion rubber strip and a pulp stop water filtering tie (see Figure). The utility model is characterized in that: 1, the water stop tie is provided with a drainage channel; the lower part of the drainage channel is communicated with a tunnel drainage channel; so the outer side of the water stop tie has no water seepage pressure. 2, the flange of the water stop tie is provided with three joints and two sides; the rubber strip, which expands when meeting with water, is pasted on the flange; so the water seepage is prevented from transversely flowing along the water stop tie. The utility model is suitable for anti-water in the tunnel and the underground engineering lining three joints.

Description

Dewatering type compounded rubber waterstop

The utility model relates to a kind of tunnel and underground construction construction of concrete lining seam, shrinkage joint and the built-in waterstop of settlement joint, particularly dewatering type compounded rubber waterstop.

The percolating water of tunnel and underground construction mostly occurs on the constuction joint of lining cutting, shrinkage joint and settlement joint (being called for short three seams), and built-in waterstop plays key effect in lining cutting three seam waterproof.There are two deficiencies in existing built-in waterstop: the one, do not possess draining pressure release function, promptly infiltrate lining cutting three seams and run into waterstop when stopping from country rock when underground water, infiltration is difficult along oozing under the seam, makes the outer side hydraulic pressure increase face of waterstop cause infiltration around the waterstop seepage; The 2nd, in the concrete coagulation hardening process, certain drying shrinkage appear, and it is closely knit inadequately that waterstop is combined with its surrounding concrete, causes infiltration to ooze out along waterstop and concrete interface easily.

The purpose of this utility model provides a kind of dewatering type compounded rubber waterstop, the drainage channel drainage and step-down that it can have by self, and pass through the impervious ability that the hydro-expansive rubber bar improves waterstop and concrete interface.

The utility model is achieved in that the middle part in waterstop cross section, leaves drainage channel.When infiltration along three seams when flowing to waterstop, the filtration beds of porous is passed in infiltration earlier, enters drainage channel then.Because the drainage channel bottom links to each other with the drainage system of tunnel and underground construction, so enter the underground water of waterstop drainage channel, can discharge along drainage channel unblockedly, thereby reduce tunnel and underground construction are stitched seepages along lining cutting three possibility.In addition, in order to increase the resistance that infiltration is oozed out along waterstop and lining concrete interface, novel waterstop also respectively is provided with a water-swelling rubber water bar in the drainage channel both sides.

Concrete structure of the present utility model is provided by following embodiment and accompanying drawing thereof.

Fig. 1 is the schematic cross-sectional view according to the dewatering type compounded rubber waterstop that the utility model proposes.Fig. 2 is that dewatering type compounded rubber waterstop is arranged schematic diagram.

Describe details and working condition thereof in detail below in conjunction with Fig. 1, Fig. 2 according to the concrete waterstop that the utility model proposes.

This waterstop is by detour (1), the edge of a wing (2), expanded rubber bar (3) and only starch drainage band (4) and form.Wherein detour (1) and the edge of a wing (2) forms the waterstop main body, only starches drainage band (4) and sticks on that go up on the edge of a wing (2) and form drainage channel (5) with detour (1).

This waterstop is built-in waterstop, and waterstop stitches (6) quadratures with concrete lining three in the middle.Infiltration (7) flow to along three seams (6) and only starches drainage band (4), owing to only starch drainage band (4) porous, infiltration is easy to enter drainage channel (5), and by the drainage system of its row to tunnel and underground construction.Passing through when only starching drainage band (4) along waterstop and concrete interfacial gap lateral flow as fruit part infiltration, then can run into stopping of hydro-expansive rubber bar (3) that stick on the waterstop edge of a wing (2).Hydro-expansive rubber bar (3) expands after meeting water, makes the interface between the waterstop edge of a wing (2) and the concrete closely knit, and infiltration increases along the lateral flow resistance, thereby improves the sealing ability of waterstop.

Claims

1, a kind of dewatering type compounded rubber waterstop, it is by detour (1), the edge of a wing (2), expanded rubber bar (3) and only starch drainage band (4) and form, and it is characterized in that the middle part in waterstop cross section is provided with drainage channel (5).

2, waterstop according to claim 1 is characterized in that being pasted with on the edge of a wing (2) of drainage channel (5) both sides and can prevent that cement mortar from passing, again can be permeable only starch drainage band (4).

3, waterstop according to claim 1 is characterized in that being pasted with hydro-expansive rubber bar (3) on the edge of a wing (2).