. Sanitary engineering : a guide to the construction of works of sewerage and house drainage, with tables for facilitating the calculations of the engineer. hesubsoil water. Various plans have been devised foreffecting the subsoil drainage of a town. It has beenproposed to construct the sewers of two parts, theupper to convey away sewage, and the lower to be pervious, to convey subsoilwater, as shown in Fig. 141;but in practice it is foundthat it is almost impossibleto make the joints of thesewers so tight but that attimes they will leak, and inconsequence sewage gravi-tates to the subsoil dra
. Sanitary engineering : a guide to the construction of works of sewerage and house drainage, with tables for facilitating the calculations of the engineer. hesubsoil water. Various plans have been devised foreffecting the subsoil drainage of a town. It has beenproposed to construct the sewers of two parts, theupper to convey away sewage, and the lower to be pervious, to convey subsoilwater, as shown in Fig. 141;but in practice it is foundthat it is almost impossibleto make the joints of thesewers so tight but that attimes they will leak, and inconsequence sewage gravi-tates to the subsoil drainsand pollutes the water. Amodification of this planhas lately been patentedby Messrs. Brooke andSons, of Huddersfield, and isillustrated in Fig. 142. In this case, subsoil drains, D,of earthenware, are laid in the sewer trench, and thesedrains are so shaped as to serve for the foundation ofthe sewer. On these subsoil drains rests, B, areplaced to receive the sewer pipe, which is carried abovethe subsoil drain. It is contended that by this modeof executing a sewer in bad and wet ground, the jointsof the sewer may be properly made in cement, so as to. Fig. 142.
Size: 2434px × 1027px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1870, bookpublisherlondon, booksubject
