Continuous building jacking system and jacking method thereof

A building and jacking technology, which is applied in the direction of lifting devices, can solve the problems of inability to carry out jacking construction, long construction period, and small pre-jacking force, and achieve low construction difficulty, low construction cost, and high jacking efficiency Effect

Pending Publication Date: 2019-01-25
SHANGHAI TONGGANG ARCHITECTURAL ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, due to the small pre-jacking force that can be applied by the following device, generally only 10-15 tons of pre-jacking force can be applied to eliminate the support gap, and the jacking construction cannot be carried out. Only a hydraulic jack can be used for active jacking. Therefore, this method has a relatively long construction period and low efficiency compared with the alternate jacking method.

Method used

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  • Continuous building jacking system and jacking method thereof
  • Continuous building jacking system and jacking method thereof
  • Continuous building jacking system and jacking method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] like figure 1 In the building continuous jacking system provided by the present invention, a kind of mechanical self-protection jack is shown in the cross-sectional structure schematic diagram:

[0052] A mechanical self-protection jack, including: a hydraulic jack composed of an oil cylinder 1' and a piston rod 2' that can be lifted or retracted on the oil cylinder 1', and an internal thread provided on the lifting ring 3' and the lifting ring 3' (Not shown in the figure) A mechanical self-protection assembly composed of the associated mechanism formed by the outer peripheral thread 21' provided on the piston rod 2', the oil motor 4' and the connecting pipeline.

[0053] from figure 1 can be seen in:

[0054] Lifting ring 3' is sleeved on the outside of piston rod 2' and through the engagement of its internal thread (not shown in the figure) with the outer peripheral thread 21' of piston rod 2' to form an associated mechanism, so that the relationship between lifting...

Embodiment 2

[0059] like figure 2 , in the building continuous jacking system provided by the present invention, a kind of sectional structural schematic diagram of the mechanical self-protection jack with driving gear is as shown:

[0060] A mechanical self-holding jack with a driving gear, comprising:

[0061] The oil cylinder 1 and the piston rod 2 that can be lifted or retracted on the oil cylinder 1, the mechanical self-protection components include the lifting ring 3, the associated mechanism, the oil motor 4, and the connecting pipeline;

[0062] The associated mechanism includes a driving gear 7 with internal teeth (not shown in the figure), an inverted U-shaped piston cover 6 fixed on the top of the piston rod 2, and an external tooth 32 provided on the outer periphery of the lift ring 3 and an inner ring provided on the inner ring. The thread 31 and the external thread 11 arranged on the outer periphery of the oil cylinder 1 make the lifting ring 3 connect with the oil cylinder...

Embodiment 3

[0076] Use the building continuous jacking system provided by the present invention to carry out the method for building jacking, comprising the following steps:

[0077] First, after adding the safety factor to the weight of the building 200, divide it by the jacking force of each mechanical self-protection jack, and calculate the required jacking capacity in the building continuous jacking system of the present invention when the building 200 is continuously jacked up. After obtaining the required quantity, according to the structural characteristics of the building 200, the jacking device 100 is arranged under the building; as image 3 When using a building continuous jacking system provided by the present invention to lift a building, the schematic diagram of the cross-sectional layout of the jacking device is shown.

[0078] Then, a mechanical self-protection jack 10a arranged in each jacking device 100 below the building 200 is started to lift through the console and the...

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Abstract

Provided are a continuous building jacking system and a jacking method thereof. The jacking system comprises a hydraulic pump station controlled by a control console, at least one group of mechanicalself-perpetuating jacks controlled by the hydraulic pump station and used for alternative jacking by turns and supporting cushion blocks for supporting the mechanical self-perpetuating jacks, whereineach mechanical self-perpetuating jack comprises an oil cylinder and a piston rod and also comprises a lifting ring, a linkage mechanism, an oil motor and a connecting pipeline. The lifting ring sleeves the oil cylinder or the piston rod and performs synchronous lifting with the piston rod under the driving of the oil motor, the linkage mechanism is connected with the lifting ring and the piston rod or the oil cylinder or the piston rod, the lifting ring is kept relevant to the immediate height position of the piston rod through the linkage mechanism, and when the hydraulic pump station or theoil cylinder suddenly loses pressure, the oil motor instantly stops rotating and lock the immediate position of the lifting ring, and meanwhile the lifting ring enables the piston rod to also keep anoriginal immediate position through the linkage mechanism and prevents the piston rod from suddenly falling after rise. The continuous building jacking system is high in efficiency and low in construction difficulty and construction cost and thus has competitive advantage.

Description

technical field [0001] The invention relates to a building jacking system and a jacking method thereof, in particular to a building continuous jacking system and a jacking method thereof, belonging to the technical field of building construction equipment. Background technique [0002] There are mainly two methods for building jacking at present, that is, two hydraulic jacks alternately jacking method and following device and hydraulic jack cooperating jacking method. [0003] The invention patent "A Method for Lifting Buildings" (application number: 201210268988.0) provides a method for two hydraulic jacks to alternately lift buildings. The console controls the hydraulic pump station to drive the two jacks to alternately lift repeatedly. During the lifting process of one jack, a steel support pad is inserted under the other jack. [0004] The two jacks used in this method are hydraulic lifting jacks. However, due to the safety hazards such as pressure release and oil leaka...

Claims

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Application Information

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IPC IPC(8): B66F3/30B66F3/42B66F3/43B66F3/46
CPCB66F3/30B66F3/42B66F3/43B66F3/46B66F2700/057B66F2700/052
Inventor 王海洋董海涛赵信磊闫洋洋曹亚飞王海苟金成刘晶晶温淑莲肖勇辉
Owner SHANGHAI TONGGANG ARCHITECTURAL ENG
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