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.

Fornecendo Soluções de Engenharia de Alto Nível para o Mercado Global há Quase 40 Anos

Soluções de construção e atualizações mais recentes

ESTACA-PRANCHA DE VINIL: A SOLUÇÃO DEFINITIVA PARA PROPRIETÁRIOS DE IMÓVEIS

Nós somos cometidos a fornecer as tubos de aço de alta qualidade que cumprem as exigências rigorosas ajustadas por estas organizações respeitados.

Estacas de vinil Ecoseal: a solução sustentável para a construção moderna

Diferentes tipos de defensas marítimas e suas aplicações

O que é que determina a eliminação de uma barreira constituída por palplanches?

Explorando a Proteção Catódica do Anodo Sacrificial: Princípios-chave, Vantagens e Usos

Como manter a classificação de profundidade de seus escudos de trincheira?

Estacas-pranchas de vinil vs. Estacas-pranchas de aço: comparação, custos e instalação

Por que usar valas ESC?

Estruturas de aço offshore: uma visão geral completa

Construindo Fundações Resilientes: O Poder das Estacas Pranchas Compostas

O Papel das Defensas Marítimas em Condições Climáticas Adversas e mar Agitado

Exploração de aplicações óptimas para Estacas-pranchas de Vinilo

Moldando a Infraestrutura Verde e Apoiando Pequenas Retenções com Sistemas de Estacas-Pranchas de Vinil

Poste de Amarração: Garantindo a Segurança do Navio com Uso Estratégico

Vigas De Aço de Flange larga: melhorar a integridade estrutural em estruturas de construção

Utilização do Caixas de Trincheira ESC para a adesão às directrizes da OSHA

Desenhos de fabricação de aço: sua importância e benefícios

Um guia completo para compra de tubos de aço

As cinco principais vantagens do uso de estaca pranchas de vinil para construção marítima

Considerações-chave para a concepção, Manutenção e gestão de pára-lamas de borracha marinhos

Características e vantagens do uso de folhas de trincheira

ESC: O seu fornecedor confiável de estacas-pranchas de alta qualidade

ESC Escudo de Trincheira de Alumínio