Table 3.

Working conditions of the influence of 3D curtain on deep foundation pit dewatering.

Working condition	Depth of vertical curtain (m)	Buried depth of HSRB roof (m)	Thickness of HSRB (m)	Hydraulic conductivity of HSRB (cm/s)
1	86	/	/	/
2		82	4	5 × 10–3
3		84	4	5 × 10–3
4		86	4	5 × 10–3
5		88	4	5 × 10–3
6		90	4	5 × 10–3
7		92	4	5 × 10–3
8		82	4	5 × 10–3
9		82	4	5 × 10–3
10		82	3	5 × 10–3
11		82	5	5 × 10–3
12		82	6	5 × 10–3
13		82	6	1 × 10–2
14		82	6	1 × 10–4
15		82	6	5 × 10–4