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Deep tamping tube and construction method thereof

A technology of deep ramming and ramming pipes, which is applied in the direction of foundation structure engineering, soil protection, sheet pile walls, etc., can solve the problems of limited processing depth and high construction noise, and achieve the purpose of reducing noise impact, improving soil strength, and good compaction The effect of dense effect

Pending Publication Date: 2019-07-12
HOHAI UNIV
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the reference level of the dynamic compaction method is generally on the surface, and the treatment depth is limited; at the same time, the ordinary dynamic compaction method is generally intermittent ramming, and the construction noise is large

Method used

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  • Deep tamping tube and construction method thereof
  • Deep tamping tube and construction method thereof
  • Deep tamping tube and construction method thereof

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Embodiment Construction

[0022] The present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.

[0023] Such as figure 1 As shown, a deep rammed pipe includes an external protective casing 1 and several sections of rammed pipes 2 that can be built into the protective casing 1 and can be freely assembled. The square hole 3 where the hydraulic press is clamped, the lower end is connected to the valve spud shoe 4, the specific size and material can be referred to as follows: the outer diameter of the steel protective sleeve 1 is 0.4-1.2m, the height of the upper square hole 3 is 8-10cm, and the projection width is 12 ~ 15cm. In this way, the quick connection with the hydraulic press can be realized, and the working efficiency can be effectively improved. The length of each section of the ra...

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Abstract

The invention discloses a deep tamping tube and a construction method thereof. The deep tamping tube comprises a protective sleeve and a plurality of sections of tamping tube bodies. A first connecting device connected with a hydraulic machine is arranged at the upper end of the protection sleeve, and the lower end of the protection sleeve is connected with a valve pile shoe. The tamping tube bodies can be disposed in the protective sleeve, and a second connecting device connected to a vibrating head is arranged at the upper end of the tamping tube bodies. Third connecting devices for the tamping tube body combination are further disposed between the tamping tube bodies. The deep tamping tube can effectively solve the base tamping problem of deep soft soil in a super soft soil foundation,and expands the depth range of dynamic compaction, the base tamping process has a good compacting effect on a soil body, the soil deformation effect is reduced, the soil body strength is improved, andthe noise impact during construction can be significantly reduced.

Description

technical field [0001] The invention relates to a deep rammed pipe and a construction method thereof, belonging to the technical field of civil engineering. Background technique [0002] In recent years, domestic dynamic compaction technology has developed rapidly and its application range has become wider. The dynamic compaction method uses tamping to give the foundation a greater impact force. Under the impact force, the bearing capacity of the soil is greatly improved, and the compressibility is also reduced. . So far, the dynamic compaction method has been successfully and widely used to deal with all kinds of gravel soil, sandy soil, artificial filling soil and general cohesive soil, etc., especially for large pieces of gravel soil which are difficult to be reinforced by general methods. And miscellaneous fill soil composed of construction, domestic garbage or industrial waste. However, the working datum of the dynamic compaction method is generally on the surface, an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D3/08E02D5/66
CPCE02D3/08E02D5/665
Inventor 李平李琪瑶陈育民吕亚茹陈俊君
Owner HOHAI UNIV
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