Recent content by djgint

thegooch, Try this website. It has lots of sample problems but it's for HP calculator users. I don't know if you use them but it has lots of sample problems free to download but you have to buy the book and program the equations in HP 35s or HP 33s. www.usefulequations.com

NIKE, It's not a dumb question. In fact this is a good AM question! When equivalent length is asked, the unit is located after the numerical value. So the equivalent length in stations for 3.2 mi. is 168.96 sta. 1 station is equal to 100 ft. When location is your intention, the unit is located...

K, Good question. The reason why they used the saturated density above water table after lowering it instead of using a dry density or moist density is because clay is a very slow draining soil. So even though the water table has been lowered, the clay soil above it should still be saturated...

Here is the link for a new book http://www.amazon.com/Useful-Equations-Calculator-Civil-Exam/dp/1483951502/ref=sr_1_1?ie=UTF8&qid=1372296941&sr=8-1&keywords=useful+equations+for+hp if you are using HP 35s or HP 33s calculator and are looking for useful equations that can be programmed.

There is a book available now in amazon that has programs for HP 35s or HP 33s calculator for Manning equation for full or partially full circular pipe. There is a program for flow rate Q and a program for velocity V. Just enter the diameter of pipe, depth of water, Manning's n, constant (1.49...

Normal Depth = 1.1438 m Froude No. = 0.6532

Stuck, Boussinesq Stress Contour Chart is used to find the stress increase at a depth say Y with a given or calculated uniform stress (psf or KN/m^2). If you have CERM 10th edition go to A-72. If the stress area is a square then use the square contour chart. For example the area is 10 feet x 10...

Samuel, To those who don't have that book like myself. Is the answer 41 degrees? Thanks.

Dr = 1/Drymin - 1/Dry / 1/Drymin - 1/Drymax * 100% Dr = 1/102 pcf - 1/112 pcf / 1/102 pcf - 1/115.2 pcf * 100% Dr = 77.9 %

Plasticity index of A-1 (A-1-a an A-1-B) is 6 max and that there is no LL that means this is a non-plastic material. LL is impossible to attain on this kind of material which is coarse to fine sand that's why it's dash. The same thing on A-3. The process of classifying AASHTO is by elimination...

boo The volume of test pit and the volume of water are the same assuming the water won't escape. Its the same as you pour water in the glass (full), weigh the water in lb then divide the weight of water with density of water you'll get ft^3 which is also the volume of the glass.

ms is not your total weight of sample. It is the weight of solids. Calculate the weight of water first mw. mw = 600.3 lb * 0.085 mw = 51.03 lb Now calculate the weight of solids ms. ms = total weight - weight of water ms = 600.3 lb - 51.03 lb ms = 549.27 lb Now you can calculate the...

JR I think the H that you are talking about is for solving for coefficient of consolidation Cv.

My answers are the same as sac_engineer. First get the volume of test pit Volume = 307 lb/62.4 pcf Volume = 4.92 ft^3 Find the moist or wet unit weight of the soil Wet unit weight = Weight of soil / Volume of test pit Wet unit weight = 600.3 lb / 4.92 ft^3 Wet unit weight = 122 pcf Find...

Try gINT. I've been using it for the past 6 years now. You can create boring logs, proctor curves, gradation curves, and soil profile.