CN203007995U - Basement bottom plate blind drain - Google Patents

Abstract

The utility model discloses a basement bottom plate blind drain which is characterized in that a precast concrete plate is arranged on the lower portion of a basement concrete bottom plate, the distance between the top portion of the precast concrete plate and the basement concrete bottom plate is 70-80mm, a fine aggregate concrete cushion layer is arranged on the precast concrete plate, a precast concrete drainage pipe is arranged on the fine aggregate concrete cushion layer, broken stones are arranged on the periphery of the precast concrete drainage pipe, geotechnical cloth is arranged on the top portion of the precast concrete plate, and pea gravel concrete is arranged between the geotechnical cloth and the basement concrete bottom plate.

Description

French drain under basement bottom board

Technical field

The utility model relates to the region between the heart and the diaphragm ditch under a kind of basement bottom board, is applicable to construction field.

Background technology

Along with the increasing, deepen of underground construction, the anti-floating of underground structure also more and more obtains people's attention.Because there are very large uncertainty in underground hydro-occurrence, recharge connection, crevice water flow and supply mode complicated especially, a large amount of with the highrise building of pure basement, the construction of underground garage, make under basement bottom board the french drain problem very outstanding.

The utility model content

The technical problem that the utility model solves is to provide french drain under a kind of basement bottom board, solves existing technical deficiency.

the utility model comprises precast concrete plank, the pea gravel concreten bed course, the precast concrete gutter, rubble, geotextiles, pea gravel concrete, concrete floor, below the concrete of basement base plate, precast concrete plank is set, the precast concrete plank top is 70～80mm from basement concrete floor distance, the pea gravel concreten bed course is set above precast concrete plank, the precast concrete gutter is set above the pea gravel concreten bed course, rubble is set around the precast concrete gutter, the precast concrete plank top arranges geotextiles, between geotextiles and concrete of basement base plate, pea gravel concrete is set.

The utility model is simple and practical.

Description of drawings

French drain schematic diagram under Fig. 1 basement bottom board.

Accompanying drawing sign: 1, precast concrete plank, 2, the pea gravel concreten bed course, 3, the precast concrete gutter, 4, rubble, 5, geotextiles, 6, pea gravel concrete, 7, concrete floor.

The specific embodiment

Below in conjunction with accompanying drawing, the utility model is described in detail.

Fig. 1 is french drain schematic diagram under basement bottom board.the utility model comprises precast concrete plank 1, pea gravel concreten bed course 2, precast concrete gutter 3, rubble 4, geotextiles 5, pea gravel concrete 6, concrete floor 7, precast concrete plank 1 is set below concrete of basement base plate 7, precast concrete plank 1 top is 80mm from basement concrete floor 7 distances, pea gravel concreten bed course 2 is set above precast concrete plank 1, precast concrete gutter 3 is set above pea gravel concreten bed course 2, rubble 4 is set around precast concrete gutter 3, precast concrete plank 1 top arranges geotextiles 5, between geotextiles 5 and concrete of basement base plate 7, pea gravel concrete 6 is set.

Claims (1)

1. french drain under a basement bottom board, it is characterized in that comprising precast concrete plank, the pea gravel concreten bed course, the precast concrete gutter, rubble, geotextiles, pea gravel concrete, concrete floor, below the concrete of basement base plate, precast concrete plank is set, the precast concrete plank top is 70～80mm from basement concrete floor distance, the pea gravel concreten bed course is set above precast concrete plank, the precast concrete gutter is set above the pea gravel concreten bed course, rubble is set around the precast concrete gutter, the precast concrete plank top arranges geotextiles, between geotextiles and concrete of basement base plate, pea gravel concrete is set.

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