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t <br /> ' 116 February' 1968 y SA 1 <br /> 58 <br /> deep piers, the excavation volume may be considerably greater than the <br /> nominal size of fhe pier would dictate. = <br /> Many of these construction hazards can be minimi'zedby properly planning <br /> the fill before installation. If large debris is segregated into areas in which <br /> no excavation will take place, foundation construction will be simplified. If <br /> building sites entailing possible excavation are constructed with materials <br /> f which will not be objectionable upon subsequent exposure, the odor (and <br /> probably the gas hazards) can be minimized. Finally, contractors working <br /> in sanitary land fills must be adequately forewarned of the problems that <br /> they are likely to encounter. , <br /> by CONCLUSIONS <br /> The problem of utilizing sanitary land fill for building developments is <br /> r. <br /> "j rapidly becoming more important. Thig is a result of the increased demand <br /> for areas for sanitary land filling and the subsequent demand for usable <br /> property for urban development. The sanitary landfill,however, is inherently <br /> a poor supporting medium because it is weak, it settles substantially, it <br /> produces hazardous or obnoxious gases, and is extremely difficult to work in. <br /> K.A These difficulties can be minimized or, eliminated utilizing present engi- <br /> neering techniques for construction and-foundations, However, these do entail T <br /> significant casts which must be recognized in the evaluation of the economics of <br /> of any future development. ` <br /> Ark,- <br /> Sanitary <br /> rloSanitary land fills can be improved and future development made possible use <br /> at minimum costs by: gro-A <br /> dem, <br /> + 1. Segregation of materials: This is essential with large objects such as In <br /> cars, debris, stumps and tires placed in areas earmarked for landscaping, varic <br /> playgrounds and nonstructural use. Similarly, the best foundation materials basic <br /> should be placed in areas where future structures are anticipated. over: <br /> 2. Compacting the fill materials. This can minimize future settlement. parti <br /> Wet and dry materials can be mixed, and much heavier, more effective com- desig. <br /> paction equipment might be used.It is the opinion of the writer that substantial mend: <br /> research in the effect of compaction and in methods for better compaction <br /> would pay dividends in enhanced value of sanitary land fills. <br /> { <br /> Th <br /> stone <br /> Oklah. <br /> (Deni.- <br /> indust. <br /> Deni.indust. <br /> Note <br /> written <br /> of the <br /> Americ <br /> was sui <br /> aPr, <br /> ence, he <br /> y 1 Chi <br /> ' Okla. <br /> 2 Chf <br /> Army, I <br />