Earthwork opening is an organic component in foundation pit construction and attention must be paid to the crustal stress release in treating the packed soil piles.

土方开挖是基坑工程的有机组成部分，对挤土桩，须重视地应力释放问题。

youdao

Soil shear strength has a significant decrease due to disturbance after construction of the packed drains, which should be seriously considered for practice technicians and academic authorities.

但施打砂井后，土体扰动引起土体抗剪强度降低是非常可观的，工程学术界和广大现场施工人员应予以重视。

youdao

In June last year, the yard was ready to be seeded with grasses and wildflowers selected by the company's meadow specialist, Ed Yates, to work well with the region's hard-packed soil and dry conditions.

WSJ: Meadows Instead of Lawns Are in Fashion in Residential Landscaping

The region's hard-packed clay soil welcomes a unique mix of plants with deep-penetrating root systems.

WSJ: Meadows Instead of Lawns Are in Fashion in Residential Landscaping

The archaeologists may turn up other unexpected finds as they dig back through soil packed down over centuries.

CNN: London rail excavation unearths suspected 'plague pit'