Directional boring or horizontal directional drilling (HDD) is a trenchless technology employed to install underground pipes without affecting the area above the borehole. Directional boring is used for the installation of utility pipelines and conduits. Most underground boring contractors use ...
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How does Suction Excavation Work? [PDF]
Suction excavation is the process of excavating soil or debris at a construction site by using vacuum pressure. A high-pressure water or air, breaks the soil and debris apart, which is then easily removed out by the vacuum. The suction ...
How to determine the Critical Depth in Open Excavation? [PDF]
The critical depth is defined as the maximum depth of excavation of soil that can be performed without any failure. Critical depth is one of the essential considerations of design used to study and analyze the stability of unsupported trenches ...
Concrete Grade Beam Construction Process
What is concrete grade beam? Grade beams are commonly concrete beams which are designed to act as horizontal ties between footings or pile caps. They should be reinforced with continuous reinforcement that is developed within or beyond the supported column, ...
Characteristics of Ground Movements Induced by Excavations
It is crucial for engineer to have adequate information regarding possible ground movements and identify its characteristics to consider proper measures against such undesired movement. Characteristics of ground movements include shape and type of ground surface settlement, influence zones of ...
How to Set Up Dewatering Plan for Excavations?
Procedures used for dewatering plans for an excavation includes selection of dewatering method, determination of hydraulic parameter, determination of the well capacity and Estimation the number of wells. Fig.1: Dewatering Excavations Set Up Dewatering Plan for Excavations 1. Selection of ...
Methods of Excavation Used for Deep Foundation Construction
There are number of excavation methods which are used for deep foundation construction such as full open cut method, bracing excavation, anchored excavation, island excavation methods,zoned excavation, top down construction methods etc. These excavation techniques are discussed. Fig.1: Excavation for ...
What are the Causes of Failure in Deep Excavations?
There are various factors that may lead to failure in open and braced deep excavations. Those factors will be discussed briefly. Causes of Failure in Deep Excavations Causes of failure in deep excavation are divided into two subtopics which include: ...