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Underground passage construction method and precast structure used in this construction method

An underground channel and pre-casting technology, which is applied to underwater structures, infrastructure engineering, artificial islands, etc., can solve problems such as weakening and insufficient structural strength

Active Publication Date: 2016-08-31
RUNHORN PRETECH ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Traditionally, all supports on the hoisting path are removed before the pre-cast block hoisting operation, which may suddenly weaken the support on both sides in the underground passage and increase the construction risk
On the other hand, the traditional pre-cast blocks are tubular reinforced concrete blocks, that is, each pre-cast block only depends on the gap grouting between the pre-cast blocks to complete the connection, which can only provide limited structural strength, and its structure Insufficient strength

Method used

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  • Underground passage construction method and precast structure used in this construction method
  • Underground passage construction method and precast structure used in this construction method
  • Underground passage construction method and precast structure used in this construction method

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Embodiment Construction

[0029] The underground passage of the present invention can preferably be applied to construction works such as pedestrian underpasses, public transport tunnels, drainage systems, etc., but not limited thereto. figure 1 It is a perspective view of the underground passage 100 constructed according to the construction method of the present invention. Such as figure 1 As shown, the underground passage 100 is excavated downwards from the ground 102, and continuous walls 104 are provided on both sides of the hollowed underground passage 100 as protection to prevent earth and rocks on both sides from collapsing. The continuous wall 104 is excavated on both sides of the predetermined excavation position before the ground 102 is excavated, and then a steel cage is placed and grouted to complete the continuous wall 104 . Between the continuous walls 104 on both sides, a plurality of support frames 200 can be arranged along the extension direction of the underground passage 100. Accord...

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Abstract

The construction method of the underground passage includes: removing part of the support frame to expose the placement space; hoisting a plurality of pre-cast structures on the placement surface of the placement space, and the pre-cast structures are arranged at a distance; fixing the third steel bar between two adjacent pre-cast structures ; pouring concrete between adjacent precast structures; and pouring concrete to connect two sides of the precast structures to form side walls.

Description

technical field [0001] The invention relates to an underground passage construction method; specifically, the present invention relates to an underground passage construction method which can be used to increase the flexibility of the construction process. Background technique [0002] Due to the rapid development of the city and the denser traffic network, it is necessary to confirm the geological structure, distribution of pipelines, and the location of adjacent buildings in detail before excavation. During construction, it is necessary to pay attention to the possible damage to the environment caused by structural changes on site. As far as the construction of the underground passage is concerned, special attention must be paid to the efficiency of passage advancement after excavation while maintaining the stability of the two side walls and the overall structural strength of the underground passage. [0003] Traditionally, all supports on the hoisting path are removed be...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D29/045
Inventor 尹衍樑
Owner RUNHORN PRETECH ENG CO LTD