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Steel casing installation device and installation method at complex terrains

A technology for complex terrain and installation devices, applied in construction, sheet pile wall, infrastructure engineering and other directions, can solve the problem of low installation accuracy, achieve the effect of high installation accuracy, overcome adverse effects, and strengthen control accuracy

Inactive Publication Date: 2018-07-27
THE FOURTH ENG CO LTD OF CHINA ZHONGTIEMAJOR BRIDGE ENG GRP +1
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  • Claims
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Problems solved by technology

[0004] The technical problem to be solved by the present invention is the problem of low installation accuracy of the existing steel casing under the condition of complex geological layers

Method used

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  • Steel casing installation device and installation method at complex terrains
  • Steel casing installation device and installation method at complex terrains
  • Steel casing installation device and installation method at complex terrains

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Embodiment Construction

[0023] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0024] Such as Figure 1~4 As shown, the present invention provides a complex-terrain steel casing installation device, including a vibration sinking assembly, a drilling rig 1 , a mud circulation device 2 , a preset casing 3 and a guide frame 4 . The vibration sinking device includes a crane 9 and a vibratory hammer 8 is arranged at the lifting end of the crane 9 . The installation method of installing the casing 7 is: the installation casing 7 is vibrated and installed by a vibrating hammer 8 .

[0025] Before installing the installation casing 7, it is necessary to place the preset casing 3 in a pre-embedded manner. The inner diameter of the preset casing 3 is 20 to 40 cm larger than the inner diameter of the installation casing 7. By presetting the casing 3, it can prevent During the installation process, the hole collapses, and after the pre-installed casing 3...

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Abstract

The invention discloses a steel casing installation device and installation method at complex terrains. The steel casing installation device at the complex terrains comprises a guide frame and a vibrating sinking device. The guide frame comprises an inner frame body and an outer frame body which are nested from the inner side to the outer side. The cross sections of the inner frame body and the outer frame body are both of square shapes. Four corners of the top face and the bottom face of the inner frame body are fixed to the center points of the four edges of the top face and the bottom faceof the outer frame body correspondingly to form a triangular area in an enclosed manner. Each triangular area is internally provided with a positioning rod, one ends of the positioning rods are fixedto the corners of the outer frame body, the other ends of the positioning rods are provided with mechanical pressing mechanisms, and rod bodies of the positioning rods are perpendicular to and fixed to the edges of the inner frame body. The vibrating sinking device comprises a crane and a vibrating hammer arranged at the hanging end of the crane. According to the steel casing installation device and installation method at the complex terrains, a casing and the guide frame are arranged, the problem of penetrating through the complex terrains is effectively solved, the control precision of installation of the casing is further enhanced, adverse influences of the geological factor on installation of the casing are overcome, and the steel casing installation device is high in applicability andinstallation precision.

Description

technical field [0001] The invention relates to bridge construction, in particular to a complex-terrain steel casing installation device and an installation method thereof. Background technique [0002] With the increasing level of bridge construction in our country, land large-diameter super-long bored piles have been used more and more in bridge construction. At present, the installation method of the steel casing mostly adopts a vibratory hammer to directly clamp the steel casing to vibrate and install it, which is suitable for formations with good geological conditions. It is difficult to achieve the accuracy of the design elevation under complex geological conditions where crushed stones, block stones and construction waste are mixed. [0003] Therefore, the existing steel casing has the problem of low installation accuracy under complex geological formation conditions. Contents of the invention [0004] The technical problem to be solved by the invention is the pro...

Claims

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Application Information

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IPC IPC(8): E02D5/66
CPCE02D5/66
Inventor 陈鹏飞张家伦王元利宋海涛陶俊陈国军王书莉余国元黄诚汪雷
Owner THE FOURTH ENG CO LTD OF CHINA ZHONGTIEMAJOR BRIDGE ENG GRP
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