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What does BP TW WL mean in landscape design?
BP is the bottom height, TW is the table height, and WL is the design water height.

The dimensions and elevations of landscape construction drawings are in meters, and should be written to two decimal places. The construction drawing design is divided into planting, roads, squares, rocks, pools, revetments, buildings, earthwork, and various underground or overhead lines. After the preliminary design is approved, the construction drawing design will be carried out. Construction drawing design documents include construction drawing, text description and budget.

There are more than two professional types of work in the same position, so it is necessary to have a general construction plan, which will be audited and countersigned to ensure that the plane size relationship is consistent with the elevation. Within a subdivisional work, each professional type of work shall be reviewed and countersigned in accordance with professional specifications at the same time.

Extended data:

Matters needing attention in the general plan of landscape construction:

(1) The planting position, structure, underground pipeline position and external contour of various garden plants shall be marked with detailed dimensions or coordinates.

(2) The construction site plan shall indicate the base point and baseline. The base point should also indicate the elevation.

(3) In order to reduce the error, the whole plane should indicate the relationship between the axis and the status quo; The planting of natural roads and hills should be controlled by grid.

(4) Indicate the elevation of roads, squares, abutments, buildings, underground trench epithelium, hills, green spaces and ancient tree roots on rivers and lakes, and indicate their connecting parts accordingly.

(5) The drawing scale is1:100-1:500.

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