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A construction method and equipment based on the lateral split start of shield tunneling in the underground excavation section

A technology of separate start and construction method, which is applied in mining equipment, shaft equipment, earthwork drilling and mining, etc., can solve the problems of large site demand, aggravated urban traffic congestion, and long duration, so as to achieve flexible start position and excavation Safety, fast construction effect

Active Publication Date: 2018-11-16
BEIJING MUNICIPAL CONSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Shield construction at open-cut stations in the urban area, due to the large demand for its site, most of them face the demolition of buildings and structures, traffic guidance and pipeline relocation, which takes a long time, and at the same time aggravates the traffic congestion in the urban area. From the point of view, most of the surrounding construction sites do not have the guidance conditions of "one for one", and most of the rail transit construction guidance areas have relatively serious traffic congestion, which has a great impact on the lives of urban residents

Method used

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  • A construction method and equipment based on the lateral split start of shield tunneling in the underground excavation section
  • A construction method and equipment based on the lateral split start of shield tunneling in the underground excavation section
  • A construction method and equipment based on the lateral split start of shield tunneling in the underground excavation section

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] like Figures 1 to 9 As shown in the figure, a construction method based on the lateral split of a shield tunnel in an undercut section includes the following steps:

[0041] S1: Install the shield base 31 in the shield assembly and excavation shaft 3;

[0042] S2: Assemble the front shield 11 and the middle shield 12 of the shield machine 1 in the shield assembly and excavation shaft 3, and the middle shield 12 is connected to the rear end of the front shield 11;

[0043] S3: The front shield 11 and the middle shield 12 of the shield machine 1 move forward at the same time, the front shield 11 moves to the upper end of the shield translation transverse channel 4, and the shield is assembled and unearthed in the shield shaft 3. The tail shield 13 is hoisted at the rear end of the middle shield 12;

[0044] S4: translate and adjust the posture of the shield machine 1 in the shield translation transverse channel 4, and the shield machine 1 moves to the junction of the s...

Embodiment 2

[0056] like figure 2 As shown, a construction structure based on the lateral split of the shield tunneling in the underground excavation section is used for the construction method based on the lateral splitting of the shield tunneling in the underground excavation section, and also includes:

[0057] Battery car unearthed transportation parking tunnel 9, shield assembly and unearthed shaft 3, shield translational cross passage 4, split starting trolley layout underground excavation tunnel 7, shield turning to underground excavation tunnel 5, shield tunnel starting position underground excavation 6. Shield tunnel 8;

[0058] The front end of the battery car unearthed transportation parking tunnel 9 is connected to the rear end of the shield assembly and the unearthed shaft 3, the top of the shield assembly and the unearthed shaft 3 is connected to the surface through a vertical shaft, and the shield assembly is connected to the unearthed shaft 3 The front end is connected wi...

Embodiment 3

[0062] like Figure 9 As shown, a construction equipment based on the lateral separation of the shield tunneling in the underground excavation section is used for the construction method based on the lateral separation of the shield tunneling in the underground excavation section, and also includes: a shield machine 1 and a shield tunneling machine Subsequent trolley device 2, the shield machine 1 includes a front shield 11, a middle shield 12, and a tail shield 13 that are detachably connected in sequence, and the subsequent trolley device 2 of the shield machine is connected to the shield machine 1 through a pipeline ;

[0063] It also includes a shield base 31, a shield reaction force frame 51, a battery car transport track 52 and a shield segment 81, the shield base is connected to the shield assembly and the bottom of the excavation shaft 3, and the battery car transport track 52 is detachably connected to the bottom of the shield turning underground excavation tunnel 5,...

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Abstract

The invention relates to the technical field of tunnel excavation construction and provides a construction structure based on the shielding lateral split starting in an underground excavation area. The construction structure is applied to a construction method based on shielding lateral split starting in the underground excavation area and further comprises a tunnel for soil transportation and parking of an accumulator car, a shield assembling and soil discharging shaft, a shield translation cross channel, a split starting trolley arrangement bored tunnel, a shield veering bored tunnel, a shield starting position bored tunnel and a shield tunnel. The construction method based on shielding lateral split starting in the underground excavation area, provided by the invention, is characterized by safe excavation, high construction speed, no influence on environment and flexible starting position; a starting well needs not be arranged in a built station structure or independently arranged; the shield can start on any position; the shield starting line and the designed central line direction of the tunnel need not be kept constant; the starting position needs not be arranged in a boundary line of road and is kept away from the position under the urban main road.

Description

technical field [0001] The invention relates to the technical field of tunnel excavation construction, in particular to a construction method, construction structure and construction equipment based on the lateral split start of a shield tunnel in an undercut section. Background technique [0002] At present, in the construction of urban subway tunnels in my country, the shield method is increasingly becoming the preferred method for urban rail transit construction due to its advantages of safe excavation, fast construction speed, small impact on the environment, and high degree of automation. The main technologies of shield construction are starting, excavation, and arrival. Among them, the starting link of shield tunnel is a key link of shield tunnel construction, and it is also one of the difficulties. The starting position of shield tunnel is generally in the built station structure or a separate starting shaft, and the line and tunnel for shield starting. The direction...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D9/06E21D11/08
CPCE21D9/06E21D9/0607E21D11/08
Inventor 杨祥亮蔡志勇张亮薛春苗杨海健赵东华李海峰郭玉海王全贤王涛王牧月张晟源李星晨韩陈旗王英波
Owner BEIJING MUNICIPAL CONSTR