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کیفیت خاک در طرح های شهرسازی

کیفیت خاک
به‌همان اندازه که عوامل آب و هوائى و سایر عوامل طبیعى بر بافت و ساخت شهرها تأثیر مى‌گذارند، کیفیت خاک نیز بر این امر اثر دارد. جنس خاک در ارتباط با میزان نفوذ آب و بارندگى‌ها، و درجهٔ مقاومت آن در مقابل ایستائى تأسیسات ساختمانى و طبقات ساختمان‌ها، از اهمیت ویژه‌اى برخوردار است. مسلماً در صورت عدم مقاومت خاک نمى‌توان براى احداث ساختمان‌هاى چندطبقه و بزرگ بدون استفاده از تکنیک‌هاى فنى که هزینه‌هاى سنگینى را نیز به‌همراه دارد، همت گماشت. در صورتى‌که جنس خاک براى نفوذ هرز آب‌ها و فاضلاب‌ها مساعد نباشد، شهرها براى دفع چنین آب‌هائى با مشکلاتى روبه‌رو خواهند بود. از طرف دیگر، جنس خاک در توسعهٔ مزارع کشاورزى اطراف شهرها و گسترش و ایجاد فضاى سبز داخل و خارج شهر، یکى از عوامل تعیین‌کننده است.
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