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A horseshoe-shaped open shield body structure and its shield method construction technology

A construction technology, horseshoe-shaped technology, applied in mining equipment, earthwork drilling, tunnels, etc., can solve the problems of multi-function automation, long manufacturing cycle, complex structure, etc., and achieve low engineering investment, improved construction quality, and improved engineering quality. Effect

Active Publication Date: 2016-03-23
SINOHYDRO BUREAU 11 CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In short, these shield machines are suitable for long tunnels or large sections. The advantages are high degree of automation and multiple functions. The disadvantages are long manufacturing cycle, complex structure and high cost.

Method used

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  • A horseshoe-shaped open shield body structure and its shield method construction technology
  • A horseshoe-shaped open shield body structure and its shield method construction technology
  • A horseshoe-shaped open shield body structure and its shield method construction technology

Examples

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Effect test

Embodiment 1

[0047] The present invention relates to a horseshoe-shaped open shield body structure and its shield method construction technology. The horseshoe-shaped open shield body structure first meets the requirements of the design section, adopts a horseshoe-shaped section, and utilizes 12 hydraulic jacks 5 in the periphery and a combination of shaped steel A detachable and removable reaction force system is combined with the first-stage support and shield safety guarantee to complete the excavation work. After one section is excavated, the reaction force system is removed, and the concrete layer 2 is lined to complete the construction of the cave body structure.

[0048] The cross grid horseshoe shield was initially selected, and several jacks installed around the tail of the shield worked together to cut the soil with the front grid, and backhoe the back of the grid to load the truck to realize the excavation of the soil. The backhoe is installed in the shield body. During the jack...

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PUM

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Abstract

The invention relates to a horseshoe open type shield body structure and shield body structure construction technology thereof. The horseshoe open type shield body structure comprises a horseshoe cross section shield body structure, wherein a plurality of hydraulic jacks and support I beams around are used to machine a detachable counter force system, and first phase protection and shield body safety guarantee are combined to complete excavation of soil body. After a section is completed, the counter force system is detached, reinforced concrete lining is carried out, and tunnel structure construction is completed. By finite element model calculation, mechanism strength and stress safety index meet the requirement, and a machined part is partitioned, welded and detected according to a machining requirement of a steel structure, and whole machine trial splicing is carried out in a processing plant. A hydraulic system is a famous-brand product purchased from a market and begins trail operation after whole machine construction safety is evaluated at the site by a relevant department.

Description

technical field [0001] The invention relates to a horseshoe-shaped open shield body developed based on the working principle of the shield body in order to solve the safety problem of mining method excavation in saturated loess strata and a shield method construction technology, which belongs to the extension of the shield technology. Background technique [0002] At present, tunnels are excavated in the soil layer. Due to the low strength of the soil layer, especially when the water content is high, the stability of the hole is extremely poor, so the shield tunneling method came into being. The shield tunneling method is to use the high strength and easy processing characteristics of steel to process the steel plate into the shape of the tunnel section to form a protective body for construction personnel and equipment in the soil layer; then set excavation auxiliary facilities such as manual excavation compartments at the head , cutting cutter head, hydraulic nozzle, etc.; ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D9/06
Inventor 赵新民颜志强衡富安徐其阳李峰
Owner SINOHYDRO BUREAU 11 CO LTD
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