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Drilled Shaft Rock Socket Capacity (O'Neill & Reese) Calculator

Easily calculate and compute drilled shaft rock socket capacity (o'neill & reese) calculator with accurate equations, live formulas, and expert guidance.

Drilled hole diameter in bedrock.

Depth penetrated into sound rock.

Unconfined compressive strength of rock core.

Allowable capacity safety factor.

Calculated Result
98,473.26 kN

Ultimate Rock Socket Capacity Q_ult

Ultimate Rock Socket Capacity Q_ult

98,473.26 kN

Ultimate Capacity K N

98473.25871454686

Allowable Capacity K N

39389.303485818746

Side Capacity K N

13650.257067622435

Base Capacity K N

84823.00164692441

98,473.26 — kN

Calculation Breakdown

  1. Applied FormulaSizes high-capacity drilled shaft (caisson) rock sockets embedded in sound bedrock, calculating side shear and tip bearing capacity per FHWA / O’Neill and Reese standards.q_s = 0.65 p_a \sqrt{\frac{q_u}{p_a}}, \quad q_b = N_c^* q_u, \quad Q_{ult} = \pi B L q_s + \frac{\pi B^2}{4} q_b

Drilled Shaft Rock Socket Metric Output

Interactive visualization based on your current inputs

Calculated Value
0.024.6k49.2k73.9k98.5kUltimate Rock Socket Capacity Q_ult

What Is the Drilled Shaft Rock Socket Capacity (O'Neill & Reese) Calculator?

This tool computes drilled shaft rock socket capacity (o'neill & reese) calculator with high precision arithmetic.

How Does the Drilled Shaft Rock Socket Capacity (O'Neill & Reese) Calculator Work?

Sizes high-capacity drilled shaft (caisson) rock sockets embedded in sound bedrock, calculating side shear and tip bearing capacity per FHWA / O’Neill and Reese standards.

Drilled Shaft Rock Socket Capacity (O'Neill & Reese) Calculator Formula & Variables

The core mathematical equation utilized by this calculator is expressed as:

qs=0.65paqupa,qb=Nc∗qu,Qult=πBLqs+πB24qbq_s = 0.65 p_a \sqrt{\frac{q_u}{p_a}}, \quad q_b = N_c^* q_u, \quad Q_{ult} = \pi B L q_s + \frac{\pi B^2}{4} q_b

Sizes high-capacity drilled shaft (caisson) rock sockets embedded in sound bedrock, calculating side shear and tip bearing capacity per FHWA / O’Neill and Reese standards.

How to Use the Drilled Shaft Rock Socket Capacity (O'Neill & Reese) Calculator

  1. Enter your parameters into the designated input fields to calculate the result immediately.

Step-by-Step Example Calculation

Drilled Shaft Rock Socket Capacity (O'Neill & Reese) Calculator Example

Input Values:

socketDiameterM:1.2
socketLengthM:3.5
unconfinedCompressiveStrengthQuMpa:25
factorOfSafety:2.5
Worked Steps: Sample evaluation based on standard reference conditions.

Understanding Your Result

The calculated primary figure indicates the optimal or required kN.

Factors That Affect the Result

  • Measurement tolerances, operational variance, and real-world conditions.

When Should You Use This Calculator?

  • Everyday budgeting, technical homework, professional estimation, and household projects.

Assumptions & Limitations

  • Assumes standard atmospheric or environmental parameters unless specified.

Frequently Asked Questions

Calculation Accuracy & Reference Note

Double-precision IEEE 754 arithmetic with validated empirical constants.

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