تتكون الطريقه المعكوسه لحفر البريمه

تتكون الطريقه المعكوسه لحفر البريمه ، الموصوفه في الادب الفرنسي على انها ( ) ، وطريقة العمل هي حفر حفره اختباريه بقطر وعمق معين باستخدام جهاز الحفر اليدوي ، بعد ذلك نملئ كل حفره الى الاعلى بالماء ،كل خمس دقائق ولمدة عشرون دقيقه وذلك للتاكد من التربه اصبحت مشبعه تماما .فيما بعد نبدء بقياس معدل التسرب اعتمادا على هبوط الماء من السطح وباستخدام ساعة قياس لقياس الوقت ومسطره مدرجه لقياس المسافه () بين سطح الماء الهابط وقمة الحفره ونتوقف بالقياس عندما يكون معدل الجريان (معدل نزول الماء ) ثابت تقريبا . مع الاخذ بنظر الاعتبار تاثير النقصان الحاصل في المنسوب نتيجة درجات الحراره وسرعة الرياح .

النتائج (الإنجليزية) 1:

The way pattens to drill rig consists, described in French literature as (), and the method of work is the drill hole risk trial diameter of a given depth by using manual drilling rig, then Nmli each hole to the top with water, every five minutes for a period of twenty minutes to make sure the soil has become saturated completely .fima after Nbde measured the leakage rate depending on the water drop from the surface and using a clock to measure to measure the time and procedure are included for measuring the distance () between the falling water surface and the top of the hole and stop compared when the flow rate (almost constant rate of water descent). Taking into account the effect of the decrease in the quotient attributed as a result of temperature and wind speed.

النتائج (الإنجليزية) 2:

The inverse method of drilling the breme, described in French literature as () and the method of work is to dig a test drilling with a certain diameter and depth using a manual drilling rig, then we fill each hole up with water, every five minutes and for twenty minutes in order to make sure the soil became completely saturated, Count we start by measuring the dropout rate based on the water drop from the surface and using a time measurement clock and a listed ruler to measure the distance between the falling water surface and the top of the crater and stop by comparing when the rate of flow (the rate of water descent) is almost constant. Taking into account the effect of the decrease in the ratio as a result of temperature and wind speed.

النتائج (الإنجليزية) 3:

The reverse drilling method is described by French literature. It works by using a manual drilling machine to drill a certain diameter and depth, and then fill in the top of each hole. After every five and twenty minutes of water to ensure that the soil is completely saturated, we start to measure the leakage rate depending on the land subsidence and the one hour measurement time and measurement procedure including Measuring distance – the flow rate is almost constant when the hole between the lower surface and the top and when the measurement is stopped. Taking into account the effect of temperature and wind speed drop.