CN103696432A - Dewatering blind ditch on outer side of external wall of basement - Google Patents

Abstract

The invention discloses a dewatering blind ditch on the outer side of an external wall of a basement. The blind ditch is of a layered structure and built on a cushioning layer on the outer side of an external wall of the basement, and sequentially comprises a coarse sand water-filtering layer and a broken stone water-permeating layer from outside to inside, and the coarse sand water-filtering layer and the broken stone water-permeating layer are separated by a brick wall on the side face and separated by geotechnical cloth on the top face. The dewatering blind ditch can effectively drain underground water, so that water level on the outer side of the basement is lowered, water pressure on a concrete structure of a building body is reduced, the technical problem of dewatering after back filling of the external wall is solved, and quality and safety of a building body structure are guaranteed.

Description

Weeper drain outside a kind of outer wall of basement

 

Technical field

The present invention relates to draining field, underground structure, relate to specifically weeper drain outside a kind of outer wall of basement.

Background technology

In Basement Concrete Structures construction, the general mode of open drain and collecting well that adopts is carried out draining, but after exterior wall backfill completes, this drainage pattern cannot effectively be got rid of underground water, cause water level outside basement to raise, be very easy to cause the generation of anti-floating accident, thereby affect quality and the safety of major structure of construction.

Summary of the invention

Technical problem to be solved by this invention is just to provide weeper drain outside a kind of outer wall of basement.

The present invention adopts following technical scheme:

Weeper drain outside a kind of outer wall of basement, described french drain is layer structure, is built in outside outer wall of basement on bed course, is followed successively by from outside to inside coarse sand drainage layer and rubble pervious layer, coarse sand drainage layer and rubble pervious layer are separated by with brick wall in side, at end face, with geotextiles, are separated by.

Further, described french drain communicates with drainage pipe or collecting well.

The invention has the beneficial effects as follows:

Weeper drain outside outer wall of basement disclosed in this invention, can effectively get rid of underground water, reduce the water level in basement outside, reduce the water pressure to building body concrete structure, solve the technical barrier of draining after exterior wall backfill, guaranteed quality and the safety of major structure of construction.

Accompanying drawing explanation

Fig. 1 is the structural representation of the embodiment of the present invention 1 weeper drain.

The specific embodiment

In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.

Embodiment 1, please refer to Fig. 1, this embodiment discloses weeper drain outside a kind of outer wall of basement, described french drain is layer structure, be built on outer wall of basement 1 outside bed course 2, be followed successively by from outside to inside coarse sand drainage layer 3 and rubble pervious layer 4, coarse sand drainage layer and rubble pervious layer are separated by with brick wall 5 in side, at end face, with geotextiles 6, are separated by.Described french drain communicates with drainage pipe, utilizes ground to discharge by water, or described french drain communicates with collecting well, utilizes drainage pump that water is discharged.

Claims (2)

1. weeper drain outside an outer wall of basement, it is characterized in that: described french drain is layer structure, be built in outside outer wall of basement on bed course, be followed successively by from outside to inside coarse sand drainage layer and rubble pervious layer, coarse sand drainage layer and rubble pervious layer are separated by with brick wall in side, at end face, with geotextiles, are separated by.

2. weeper drain outside a kind of outer wall of basement according to claim 1, is characterized in that: described french drain communicates with drainage pipe or collecting well.

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