Name: ESC Group
Price range: $

Question 1

What is the proper vinyl sheet pile driving method for different soil types?

Accepted Answer

“Pitch and drive” method is the most practical way of pile driving in loose soils especially when using short piles.  Also called “set and drive”, this method installs piles one by one. However, with only one interlock in control, sheet piles have high tendencies of rotating from the axis and leaning forward or backward. Panel driving is recommended for the dense deposit of sands and compact cohesive soils such as heavy clay or in presence of obstructions. In this method, a number of piles are interlocked together before driving. The panel of piles is supported by guide frames and driven gradually in sequence, sometimes in a staggered manner. The method can achieve installations of longer piles in more difficult ground conditions with better results in sheet pile alignment and verticality. In cases of difficult ground conditions such as hard strata and the presence of obstructions, driving assistance is employed along with a proper selection of driving method and equipment. Jetting and drilling help by loosening or eliminating obstructions by creating pressure right under the tip of the sheet pile being driven. Long and slender PVC sheet piles require steel mandrels as supports when driven in such conditions. Mandrel, which shape is similar to sheet pile profiles, increases the rigidity of Plastic Sheet Pile and supports the weight of the driving equipment such as a vibro-hammer.

Question 2

What is the proper machine to drive piles in different conditions?

Accepted Answer

Impact driving is suitable for all soil types but appears to create the highest degree of stress to sheet piles. It is more appropriate to cohesive soils and soft soils such as silts and peats, loose medium to coarse sand, and gravels free of rock inclusions. Drop hammers such as the hydraulic hammer are the common types of impact-driving machinery. Driving using vibratory hammers is ideal for non-cohesive or granular soils such as soft soils and round-grained sand or gravel. It has also shown satisfactory performance in sandy, silty, or softer clay soils. It is less effective in angular-grained materials and soils with a firm consistency. With the introduction of vibration, however, the sub-soil can be further compacted, increasing penetration resistance and ultimately-refusal. If this is the case, driving aids like jetting and drilling might be necessary.

Question 3

What are the pvc sheet pile selection criteria for soil condition of different hardness?

Accepted Answer

General rule of the thumb: “the harder the soil, the stronger and stiffer sheet pile section should be used”. Driveability of a pile section is a consequence of its cross-sectional properties (thickness, depth, and width), designed shape, length, grade, and the applied load. Hardness of soil strata characterized by SPT or CPT values is used to predict soil resistance which is essential in the calculation of driving force to be applied. Knowing the range of force from the selected driving machine, corresponding sheet pile sections can be picked according to their yield strength and elastic modulus.

Question 4

How should I choose a sheet pile section for soils with, say, SPT Value, N=30? Can I still consider using vinyl or shift to steel?

Accepted Answer

Every sheet pile material has a design purpose, strengths, and areas of improvement. The availability of different materials denotes the need for a special material for a specific application. Plastic or synthetic sheet piles for example are known for being light and corrosion-resistant; Steel sheet piles are recognized for their extraordinary strength and versatility; and so on.

Delivering High Grade Engineered Solutions to the
Global Market for almost 40 years

Construction Solutions and Latest Updates

Beyond Anodes: How ESC Integrates Sacrificial Protection with Broader Marine Defense Systems

ESC Vinyl Pile: American-Made Sheet Piling Solutions

Steel Foundations, Coastal Solutions: The Power of Pipe Piles

How to Calculate Mooring Bollards: A Guide to Safe and Efficient Mooring

Optimizing Timelines and Budgets with Trench Box Solutions

Sheet Piles vs. Bored Secant Piles: Structural Insights with ESC Steel

Infrastructure That Holds the Line: Flood Control Barriers for Public Safety

Modular Steel Bridges: ESC’s Smart Solution for Resilient Infrastructure

ESC Trench Shoring Inc.: A Trusted Partner in Trench Safety

Engineering the Future with ESC: How Vinyl Sheet Piles Deliver Value, Strength, and Sustainability

ESC Trench Box Safety Guide: Protecting Your Crew Below Ground

Understanding Bollard Pull: A Key Factor in Ship Maneuvering

ESC Vinyl Sheet Piles: Pioneering the Future of Sustainable Construction

Should I Purchase the Sheet Pile New or Used?

Hot Rolled vs Cold Formed Sheet Pile

Sheet Pile Seawall Systems and Their Sustainable Benefits

ESC Times December 2024 Edition

Crisis Control: ESC Flood Warden's Contribution to Sustainable Flood Management

VINYL SHEET PILE: THE ULTIMATE SOLUTION FOR PROPERTY OWNERS

The Essential Role of Standards Organizations in Guaranteeing High-Quality Steel Piping: How ESC Leads the Way

Ecoseal Vinyl Sheet Piles: The Sustainable Solution for Modern Construction

Different Types of Marine Fenders and Their Applications

What determines the water-tightness of a barrier made of sheet piles?

Exploring Sacrificial Anode Cathodic Protection: Key Principles, Advantages, and Uses