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I . <br /> SA •1'. .SA 1 SANITARY LAND FILLS <br /> reng,th ofh <br /> le effect: area <br /> is relatively uniform in composition and if a load is applied to a limited ' <br /> area (such as the load imposed by a light building or a fill of limited extent), f E <br /> he load- a dished-in or saucer-shaped depression is formed,centered about the center E <br /> ich have of the loading and extending substantially beyond the limits of the loaded area, <br /> r part of as shown in Fig. 5. If, however, the loading pattern is nonuniform, the settle- i <br /> o bridge ment will usually be greatest in the areas of greatest.loading. If the,fill is <br /> nonuniform in composition, as is frequently, the case, the settlement pattern <br />�r slabs, will reflect the nonuniformity. Particularly serious are irregular hard zones <br /> strip or <br /> ifill nor in fill such as may be Caused by,nests of boulders, building debris, or ac- <br /> ire must ' <br /> m virgin ° f <br /> ependent <br /> ous con- <br /> worst of <br /> mtribute STATION 0+35,LINE F 3 <br /> ch-make ' <br /> ween and 2t �� <br /> volume NOTE: POINTS 42 FEET APART,WING I <br /> There is A . <br /> ncluding <br /> lditional W 3 , <br /> e and its u ` <br /> Irther to <br /> consists W <br /> scent or , <br /> ids. The <br />.tion, or 5 . <br /> OlOgical STATION 0+35,LINE J t <br /> as and a <br /> ttlement ' <br /> on com- <br /> ati0n on 7 <br /> t that is 0 1 2 3 4 5 6 <br /> YEARS AFTER BUILDING CONSTRUCTED 1 <br /> i. , <br /> ng time. ; +�y <br /> ttlement FIG. 5.-SETTLEMENT OF BUILDING SUPPORTED ON NEW <br /> ire, air, 10-FT THICK FILL OVERLYING A 25-FT THICK SANITARY <br /> In gen- LAND FILL _._�_.._• <br /> fill and <br /> ground cumulations of stumps. These settle but little under load and cause severe �. <br /> ither an discontinuities in the settlement pattern and damage to structures, as illus- I <br /> ttlement trated in Fig. 5. F ,1 <br /> wing the There are few data on the settlement that actually occurs in sanitary land <br />► ground fills. Limited information' indicates that sanitary fills of mixed composition ' <br /> ti< <br /> sting or typically settle from 10% to 30% of their original thickness under their own '. <br /> i <br /> n. If the 4"Soil Waste Management," Public Health Service, U. S. Department of Health, <br /> Education, and Welfare, Taft Sanitary Engineering Center, Cincinnati, May, 1966. <br />