What is the maximum allowable slope for an excavation in Type B soil?

In the context of excavation safety standards, Type B soil is classified as having a moderate stability, which necessitates specific regulations regarding excavation slopes to ensure the safety of workers. The maximum allowable slope for excavations in Type B soil is indeed 45 degrees. This slope is considered safe as it maintains the structural integrity of the excavation walls while minimizing the risk of collapse.

The 45-degree slope allows for effective drainage and lessened lateral pressure from the soil, which are crucial factors in preventing cave-ins during excavation work. Such guidelines are critical for compliance with safety regulations, which aim to protect construction workers. Understanding these standards is essential for any commercial contractor involved in excavation work.