Parks and park engineering . Timber Bulkhead and Subsoil Filling to FormArtificial Shore of Lake Excavated in Poor So/7. Fiu. This pipe discharges into city sewer at intervals Method of Removing Qround and Surface Water Collecting behind Retaining Wall. FIG. 19. 55 MASONRY WALLS AND STEPS 57 in order to ensure stable equilibrium and then, after saya month, remove the surplus material. As the good soilsinks into the soft material in which the lake is being con-structed an upheaval of course takes place, which necessi-tates further excavation. In order to provide a solid bottom
Parks and park engineering . Timber Bulkhead and Subsoil Filling to FormArtificial Shore of Lake Excavated in Poor So/7. Fiu. This pipe discharges into city sewer at intervals Method of Removing Qround and Surface Water Collecting behind Retaining Wall. FIG. 19. 55 MASONRY WALLS AND STEPS 57 in order to ensure stable equilibrium and then, after saya month, remove the surplus material. As the good soilsinks into the soft material in which the lake is being con-structed an upheaval of course takes place, which necessi-tates further excavation. In order to provide a solid bottom for the lake, 1-inchboards are laid loosely on scantling and covered with 6inches of good subsoil. MASONRY WALLS AND STEPS Retaining Walls. It is essential that masonry walls,whether of stone or concrete, be kept dry. In order tosecure this, proper provision must be made both for thecollection and for the disposal of water. If a retaining wall is backed by a grassy slope, a grassgutter should be provided to intercept surface water beforeit reaches the wall. Catch-basins or inlets are placed inthis gutter at proper intervals,
Size: 2607px × 958px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, bookpublishere, booksubjectparks
