Construction method for spliced cylindrical structure utilizing pipe jacking machine head for excavation

A construction method and assembled technology, which is applied in the direction of infrastructure engineering, construction, caisson, etc., can solve problems such as limited scope of application, large noise and vibration pollution, limited cylinder diameter and length, etc., to achieve wide application range, reduce Effect of noise and vibration, construction cost reduction effect

Active Publication Date: 2017-08-18
BEIJING MUNICIPAL ENG RES INST +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The construction methods of hammering and vibration will produce greater noise and vibration pollution, and will have a greater impact on the surrounding environment, buildings and cylindrical structures themselves, so they are rarely used in towns and their vicinity.
For other construction methods, due to the constraints of construction technology and construction machinery, the diameter and length of the cylinder are limited, and the maximum diameter is about 3m, which limits the scope of application.

Method used

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  • Construction method for spliced cylindrical structure utilizing pipe jacking machine head for excavation
  • Construction method for spliced cylindrical structure utilizing pipe jacking machine head for excavation
  • Construction method for spliced cylindrical structure utilizing pipe jacking machine head for excavation

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Embodiment Construction

[0028] The following description serves to disclose the present invention to enable those skilled in the art to carry out the present invention. The preferred embodiments described below are only examples, and those skilled in the art can devise other obvious variations.

[0029] A submerged shaft excavation method, the method comprises the steps of:

[0030] Step 1: Select the steel socket pipe and pipe jacking head according to the actual engineering situation and design requirements.

[0031] According to different hydrogeological conditions, the sealed or open electric pipe head can be used, and the diameter of the pipe jacking head can be flexibly adjusted (small (DN800~5000mm), medium (DN5000~15000mm), large (DN15000~20000mm) )). Using the pipe jacking head, each steel socket pipe can be directly guided into the design position, and the direction deviation can be corrected during the excavation process to ensure the excavation position and verticality.

[0032] The sh...

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Abstract

The invention discloses a construction method for a spliced cylindrical structure utilizing a pipe jacking machine head for excavation. The construction method comprises the following steps that firstly, the pipe jacking machine head is used for conducting excavation at the excavation position through the gravity of the pipe jacking machine head; secondly, when the excavation depth reaches a certain proportion of the height of the pipe jacking machine head, a first joint steel bell mouth pipe is spliced, and new steel bell mouth pipes are constantly spliced along with gradual increasing of the excavation depth till the needed depth is reached. The pipe jacking machine head is adopted in the method for excavation, the technology is mature, efficiency is high, and noise and vibration are weak.

Description

technical field [0001] The invention belongs to the underground engineering field of civil engineering, and in particular relates to a construction method of an assembled cylindrical structure excavated by a pipe jacking machine head. Background technique [0002] Submerged tubular structures generally adopt prefabricated structures (including concrete and steel structures) by means of hammering, strong vibration, water jet sinking, and soil removal in the pipe cavity to break through the pile end resistance and side friction resistance, so that the structure reaches the design elevation. a construction method. [0003] The construction methods of hammering and vibration will produce greater noise and vibration pollution, which will have a greater impact on the surrounding environment, buildings and cylindrical structures themselves, so they are rarely used in towns and their vicinity. For other construction methods, due to the constraints of construction technology and con...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D23/08
CPCE02D23/08
Inventor 乐贵平贺美德柳飞
Owner BEIJING MUNICIPAL ENG RES INST
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