Mud sinking inspection well (rainwater)

井筒规格	支管型号	沉泥检查井（雨水）
		起始	直通	90度	三通	四通
315	160	21.11	23.33	23.33	27.22
	200	22.22	24.44	24.44	28.00	58.82
	300	32.22	35.56	35.56	37.78	50.00
450	200	38.44	40.78	42.00	44.44	83.66
	300	50.11	57.11	57.11	60.67	118.95
	400	63.33	68.89	68.89	74.44	101.11
630	200	65.33	70.00	70.00	73.44	158.17
	300	81.67	82.78	84.00	88.67	176.47
	400	98.00	105.00	107.33	112.00	235.29
700	200	74.67	77.00	79.33	81.67	164.71
	300	96.78	96.78	99.11	107.33	205.23
	400	109.67	115.56	118.89	124.78	258.82
	500	227.78	244.44	244.44	272.22	294.44
	600	244.44	266.67	266.67	294.44	316.67
1000	300	287.78	287.78	287.78	287.78	287.78
	400	333.33	333.33	333.33	333.33	333.33
	500	443.33	443.33	443.33	443.33	443.33
	600	651.11	651.11	651.11	677.78	688.89
	800	831.11	831.11	833.33	857.78	870.00