Foundation Design: Principles and Practices (3rd Edition)
3rd Edition
ISBN: 9780133411898
Author: Donald P. Coduto, William A. Kitch, Man-chu Ronald Yeung
Publisher: PEARSON
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Textbook Question
Chapter 4, Problem 4.5QPP
Discuss the advantages of the CPT over the standard penetration test.
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Students have asked these similar questions
Describe the procedure of he constant-rate-of-penetration test.
Compare the advantages and disadvantages of Standard Penetration Test (SPT) and Cone Penetration Test (CPT)
The following values were found from the corrected load versus penetration curve after completing
a CBR test. Load at 2.5mm penetration 550kg and at 5mm penetration = 936kg.
Based on the above values Find: 1) CBR values for 2.5 mm penetration and 5.0 mm penetration.
2) Find the reported CBR value.
Chapter 4 Solutions
Foundation Design: Principles and Practices (3rd Edition)
Ch. 4 - Describe a scenario that would require a very...Ch. 4 - How would you go about determining the location of...Ch. 4 - A five-story office building is to be built on a...Ch. 4 - A two-story reinforced concrete building is to be...Ch. 4 - Discuss the advantages of the CPT over the...Ch. 4 - A standard penetration test was performed in a 150...Ch. 4 - Using the CPT data in Figure 4.22, a unit weight...Ch. 4 - Prob. 4.8QPPCh. 4 - Prob. 4.9QPPCh. 4 - A series of vane shear tests have been performed...
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Similar questions
- Describe the Standard Penetration Test (SPT)? What does “Refusal” mean during SPT Test?arrow_forwardIn CBR test the value of CBR is calculated at A. 2.5 mm penetration only B. O 5.0 mm penetration only C. 7.5 mm penetration only D. Both 2.5 mm and 5.0 mm penetrationsarrow_forwardThe following values were found from the corrected load versus penetration curve after completing a CBR test. Load at 2.5mm penetration = 550kg and at 5mm penetration = 936kg. Based on the above values Find: 1) CBR values for 2.5 mm penetration and 5.0 mm penetration. 2) Find the reported CBR value. CS Scanned with CamScannerarrow_forward
- State the comparison between standard penetration test with dynamic cone penetration test ?arrow_forwardExplain when in the field static cone penetration test is applied ?arrow_forwardc) Indicate the two boreholes (between BH1 and BH5) where a Standard Penetration Test (SPT) needs to be carried out. What type and nature of samples can be obtained from this test?arrow_forward
- What are the engineering applications of each of these tests?a. flash point testb. RTFO procedurec. rotational viscometer testd. dynamic shear rheometer teste. penetration test.arrow_forwardA sand deposit has been identified beneath a site located adjacent to a river. The sand deposit is 15 feet thick and the top of the layer is 12 feet below the ground surface and overlain by a very stiff clay and is underlain by bedrock. The water level has been measured to be at a depth of 10 feet. The standard penetration resistance of the layer has been determined to be 12 blows per foot and a standard sampler was used; a drill rig with a safety hammer with an efficiency of 60% was used. The length of the drill rod is 10 meters and the borehole diameter is 5 inches (127 mm). The design earthquake has been designated as a moment magnitude 6-3/4 event on a nearby fault and the maximum ground acceleration is expected to be 0.40 g. The wet unit weight of the clay soils is 150 pounds per cubic foot and the wet unit weight of the sand soils is 180 pounds per cubic foot. The sands have 35% fines content according to a grain size analysis. Determine the cyclic resistance ratio, CRR. Use this…arrow_forwardA sand deposit has been identified beneath a site located adjacent to a river. The sand deposit is 15 feet thick and the top of the layer is 12 feet below the ground surface and overlain by a very stiff clay and is underlain by bedrock. The water level has been measured to be at a depth of 10 feet. The standard penetration resistance of the layer has been determined to be 12 blows per foot and a standard sampler was used; a drill rig with a safety hammer with an efficiency of 60% was used. The length of the drill rod is 10 meters and the borehole diameter is 5 inches (127 mm). The design earthquake has been designated as a moment magnitude 6-3/4 event on a nearby fault and the maximum ground acceleration is expected to be 0.40 g. The wet unit weight of the clay soils is 150 pounds per cubic foot and the wet unit weight of the sand soils is 180 pounds per cubic foot. The sands have 35% fines content according to a grain size analysis. Determine the magnitude scaling factor, MSF. Express…arrow_forward
- sand deposit has been identified beneath a site located adjacent to a river. The sand deposit is 15 feet thick and the top of the layer is 12 feet below the ground surface and overlain by a very stiff clay and is underlain by bedrock. The water level has been measured to be at a depth of 10 feet. The standard penetration resistance of the layer has been determined to be 12 blows per foot and a standard sampler was used; a drill rig with a safety hammer with an efficiency of 60% was used. The length of the drill rod is 10 meters and the borehole diameter is 5 inches (127 mm). The design earthquake has been designated as a moment magnitude 6-3/4 event on a nearby fault and the maximum ground acceleration is expected to be 0.40 g. The wet unit weight of the clay soils is 150 pounds per cubic foot and the wet unit weight of the sand soils is 180 pounds per cubic foot. The sands have 35% fines content according to a grain size analysis. Compute the factor of safety against liquefaction of…arrow_forwardThe number of blows observed in a Standard Penetration Test (SPT) for different penetration depths are given as follows: Penetration of sampler No. of blows 0-150 mm 6 150-300 mm 8 300-450 mm 15 The observed Nvalue isarrow_forwardDate: 12/20/20 1. The site investigation results below are for a site with sand and gravel above 18 ft and a clayey sand soil below. The upper sand and gravel layer has an average wet unit weight of 105 pcf and the clayey sand has an average unit weight of 112 pef. The standard penetration test was conducted using a safety hammer and a 2.5 in. diameter standard sampler with the results provided in the following table. Note any assumptions. Depth Blows/6 in. Notes ft 0-6 6-12 12-18 2.5-4 8 7.5-9 12 12 15 15-16.5 18 18 20 21 21 19 Water table at 18 17-18.5 25-26.5 35-36.5 40 25 25 25 30 30 35 100 Refusal Estimate the frietion angle indicated for a foundation located 5 ft below grade. a.arrow_forward
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