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Self-Raising Tower Crane QTZ80

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Item		Unit	2times rates	4times rates
Rated load moment		kN.m	800
The Max working radius		m	62
The Min working radius		m	3
The Max loading weight		t	3	6
Lifting height	Independent type	m	45
	Attached type		151.4	75
Structure weight (Independent type)		t	36.6
Countering weight	Max range 62m	t	13.4
	Max range 56m		12
	Max range 50m		10

Self-Raising Tower Crane QTZ80

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NON-SAND VACUUM PRELOADING DRAINAGE METHOD

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What is Soft & Weak Foundation

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Why have to engage the soft foundation treatment?

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Hazards about without soft foundation treatment

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Soft Foundation treatment method of HLS

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SURCHARGE PRELOADING METHOD

Overview：Surcharge Preloading Method is widely apply in soft soil improvement projects, and the method will be Site Leveling + Sand Layer + PVD Installation + Drainage Channel Excavation. Performance:◎ Increase Bearing Capacity ◎ Increase Soil Consolidation ◎ Reduce different Settlement after Discha
Soft improvement for Zhuhai Huihua Experimental School （Year 2019）

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62m boom	m	3-13.6	14	16	18	20	22	24	25.6	26	28	30	32	34	36	38	40	42	44	46	48	50	52	54	56	58	60	62
4times rates	t	6.00	5.82	5.04	4.44	3.95	3.56	3.23	3.00	2.95	2.70	2.50	2.32	2.16	2.01	1.89	1.77	1.67	1.57	1.49	1.41	1.33	1.27	1.21	1.15	1.10	1.04	1.00
2times rates	t	3.00	3.00	3.00	3.00	3.00	3.00	3.00	3.00	2.95	2.70	2.50	2.32	2.16	2.01	1.89	1.77	1.67	1.57	1.49	1.41	1.33	1.27	1.21	1.15	1.10	1.04	1.00

56m boom	m	3-14.9	16	18	20	22	24	26	28	28.1	30	32	34	36	38	40	42	44	46	48	50	52	54	56
4times rates	t	6.00	5.57	4.90	4.37	3.94	3.57	3.27	3.01	3.00	2.78	2.58	2.40	2.24	2.11	1.98	1.87	1.76	1.67	1.58	1.50	1.43	1.36	1.30
2times rates	t	3.00	3.00	3.00	3.00	3.00	3.00	3.00	3.00	3.00	2.78	2.58	2.40	2.24	2.11	1.98	1.87	1.76	1.67	1.58	1.50	1.43	1.36	1.30

50m boom	m	3-15.6	16	18	20	22	24	26	28	29.5	30	32	34	36	38	40	42	44	46	48	50
4times rates	t	6.00	5.86	5.17	4.61	4.15	3.77	3.45	3.17	3.00	2.94	2.73	2.54	2.38	2.23	2.10	1.98	1.87	1.70	1.68	1.60
2times rates	t	3.00	3.00	3.00	3.00	3.00	3.00	3.00	3.00	3.00	2.94	2.73	2.54	2.38	2.23	2.10	1.98	1.87	1.77	1.68	1.60

62m boom	m	3-13.6	14	16	18	20	22	24	25.6	26	28	30	32	34	36	38	40	42	44	46	48	50	52	54	56	58	60	62
4times rates	t	6.00	5.82	5.04	4.44	3.95	3.56	3.23	3.00	2.95	2.70	2.50	2.32	2.16	2.01	1.89	1.77	1.67	1.57	1.49	1.41	1.33	1.27	1.21	1.15	1.10	1.04	1.00
2times rates	t	3.00	3.00	3.00	3.00	3.00	3.00	3.00	3.00	2.95	2.70	2.50	2.32	2.16	2.01	1.89	1.77	1.67	1.57	1.49	1.41	1.33	1.27	1.21	1.15	1.10	1.04	1.00

56m boom	m	3-14.9	16	18	20	22	24	26	28	28.1	30	32	34	36	38	40	42	44	46	48	50	52	54	56
4times rates	t	6.00	5.57	4.90	4.37	3.94	3.57	3.27	3.01	3.00	2.78	2.58	2.40	2.24	2.11	1.98	1.87	1.76	1.67	1.58	1.50	1.43	1.36	1.30
2times rates	t	3.00	3.00	3.00	3.00	3.00	3.00	3.00	3.00	3.00	2.78	2.58	2.40	2.24	2.11	1.98	1.87	1.76	1.67	1.58	1.50	1.43	1.36	1.30

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Item	Running direction	Rate	Level	m/min	Ton	Power
Lifting	Up and down	2times rates	Ⅰ	8.5	3	30/30/6.8
			Ⅱ	50	3
			Ⅲ	100	1.5
		4times rates	Ⅰ	4.25	6
			Ⅱ	20	6
			Ⅲ	40	3
Amplitude of variation	Left and right		Ⅰ	20		2.2
Amplitude of variation	Left and right		Ⅱ	40		3.3
Rotation	Around		Ⅳ	≤0.6r.p.m		2.2×2
Climb	Up and down			0.4		7.5