تبين من نتائج اختبارات الرص أن الكث

تبين من نتائج اختبارات الرص أن الكثافة الجافة تزيد عندما تتفتت تربة مع زيادة نسبة الرطوبة تحت أي جهد إلى أن تبلغ العينة الرطوبة القصوى ثم تنخفض الكثافة الجافة بعد الزيادة في الرطوبة عند الحد الأقصى. وهناك نظريات كثيرة لتفسير ذلك منها أنه إذا كانت الرطوبة في تربة ما منخفضة فإن حبيباتها تتغلف بطبقة رقيقة من الماء والهواء الذي يفصل هذه الحبيبات يكتسب ضغطا جويا حيث يكون الهواء في بادئ الأمر متصل بالجو. فإذا دمكت الحبيبات مع بعضها بحيث يمتنع اتصال الهواء الموجود في الفراغات بالجو فإن ضغط الهواء المحبوس في الفراغات يزيد عن الضغط الجوي بمقدار يتوقف على درجة تقارب الحبيبات من بعضها وحجم الهواء المحبوس في الجيوب الناتجة من تقارب الحبيبات. وكلما كان حجم الهواء المحبوس كبيرا كلما كان ضغطه صغيرا والعكس صحيح.

النتائج (الإنجليزية) 1:

Monitoring test results showed that the dry density increases when it dissolves soil with increasing humidity under any effort to inform the sample maximum moisture and then cut the dry density after the increase in humidity at the maximum. There are many theories to explain it that if the moisture in the soil of low particle that outlaws with a thin layer of water and air that separates these granules acquires air pressure so that the air is initially connected to the air. If the demkt particles together so that the air connection refrain from air spaces trapped air pressure in excess of atmospheric pressure of blanks by depends on the degree of convergence of granules of each size of trapped air pockets from affinity. Whenever a large volume of trapped air where a small stroke and vice versa.

النتائج (الإنجليزية) 2:

Results from compaction tests that the dry density increases when the soil disintegrates with increasing humidity under no effort to inform the sample extreme humidity and dry density decreases after the increase in humidity when the limit. There are many theories to explain them so that if the moisture in the soil is low, grains crystallized Tnglv a thin layer of water and air that separates these granules acquires pressure air, where the air is initially connected to the atmosphere. If Dmokt granules with each other so that refrain air connection is in the blanks atmosphere, the air pressure trapped in the spaces more than the atmospheric pressure by depending on the degree of convergence of the granules from each air volume trapped in the enclaves resulting from the convergence of the granules. The greater the volume of air trapped great whenever pressed small and vice versa.

النتائج (الإنجليزية) 3:

The compaction test results show that when disturbed the soil dry density increase with the increase of relative humidity in any effort to reach the sample maximum and then decrease moisture density dry after the increase in humidity is at a maximum. There are many theories to explain it, if the soil moisture is low, the particle Ttghlf with a thin layer of water and air separating these particles is of pressure air, air is initially connected to the atmosphere. If the Dmkt particles contact with each other and not the air located in the air spaces of the pressure of the air trapped in the voids than the atmospheric pressure by depends on the degree of approximation the granules of each size, the air trapped in the pockets, resulting from the convergence of the particles. The large volume of air trapped when pressure is small and vice versa.