顶管施工过程中浆液扩散对减阻效果影响

徐浩东, 余童真, 樊伟, 李明广, 刘念武

Influence of Slurry Diffusion on Drag Reduction During Pipe Jacking Cnstruction

XU Haodong, YU Tongzhen, FAN Wei, LI Mingguang, LIU Nianwu

表1 模型相关参数取值

Tab.1 Values of parameters related to model

序号	H/ m	γ/ (kN·m^-3)	e	c'/ kPa	φ'/ (°)	$E_{o e d}^{r e f}$ / MPa	$E_{50}^{r e f}$ / MPa	$E_{u r}^{r e f}$ / MPa	R_f	$G_{0}^{r e f}$ / MPa	γ_0.7× 10⁴	k/ (cm·s^-1)
黏土②₁	12.5	18.4	0.95	10	27	7.16	8.80	50.14	0.9	200.5	2.7	5.21×10^-7
淤泥质黏土④	10	16.7	1.41	6	24	5.80	7.08	40.56	0.6	162.2	2.7	2.38×10^-7
粉质黏土⑤₁	2.5	18.0	1.01	5	28	4.52	5.43	31.66	0.9	126.6	2.7	3.37×10^-7
砂质黏土⑤₂	2.5	17.7	0.99	2	30	5.97	7.16	41.79	0.9	167.1	2.7	3.07×10^-4
粉质黏土	4	18.0	0.99	4	28	4.37	5.24	30.58	0.9	122.3	2.7	2.70×10^-6
粉质黏土	8	18.2	0.94	5	30	4.48	5.37	31.34	0.9	125.3	2.7	1.57×10^-7
砂质粉土	22.5	19.0	0.73	1	30	13.31	13.31	53.23	0.9	266.1	2.7	6.99×10^-4
粉细砂	22	19.2	0.71	0	30	14.25	14.25	57.00	0.9	285.0	2.7	8.76×10^-4