Method for preventing shield penetration of building compact district from inducing ground subsidence

A technology for land subsidence and dense areas, applied in the direction of earthwork drilling, mining equipment, tunnels, etc., to achieve a wide range of monitoring and measurement, high precision, and comprehensive consideration

Inactive Publication Date: 2013-07-10
TONGJI UNIV
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0005] There is no report on the method of controlling ground subsidence ind...

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  • Method for preventing shield penetration of building compact district from inducing ground subsidence
  • Method for preventing shield penetration of building compact district from inducing ground subsidence
  • Method for preventing shield penetration of building compact district from inducing ground subsidence

Examples

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Embodiment Construction

[0047] The present invention will be further described below in conjunction with the embodiments shown in the accompanying drawings.

[0048]In this example, shield tunneling is used to pass through a building-intensive area integrating finance, commerce and tourism in a certain place. The diameter of the tunnel is about 14.0m. The thickness is 0.6m, and the soil layer within the tunnel shield excavation range is ② 0 、② 3-2 , ③, ④, ⑤ 1 , ⑤ 3 , ⑤ 3t layer, the total length of the tunnel is about 1100.0m, and combined with the field monitoring data, the stratum loss is controlled to control the ground subsidence induced by the shield passing through the densely built area.

[0049] Such as figure 1 as shown, figure 1 It is a schematic flowchart of a method for controlling ground subsidence induced by shield tunneling through densely built areas by controlling formation loss in the present invention.

[0050] A method for controlling ground subsidence induced by shield tun...

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Abstract

The invention discloses a method for preventing shield penetration of a building compact district from inducing ground subsidence by controlling ground loss. The method includes the following steps: firstly, building a set of concept system of ground subsidence 'ground loss' caused by the shield penetration the building compact district; secondly, building mathematical models of ground loss and ground subsidence and ground loss and construction parameters by utilizing the monitoring data of a testing section; thirdly, performing back calculation on a ground loss target according to a subsidence control target of the shield penetration of the building compact district; and finally, proposing construction control parameters of the ground subsidence induced by the shield penetration of the building compact district. The method integrates theoretical analysis, scientific experiments and numerical simulation, is strong in application, wide in monitoring and measuring rage, good in reliability and high in accuracy, and achieves quantified and refined control on the ground subsidence construction parameters of the shield penetration of the building compact district.

Description

technical field [0001] The invention belongs to the technical field of tunnel construction, and relates to a method for inducing ground subsidence when a shield passes through a densely built area, in particular to a method for controlling ground subsidence induced by a shield passing through a densely built area by controlling stratum loss. Background technique [0002] The shield tunneling method construction technology is the key technology of the subway construction project. The construction of urban subways by the shield tunneling method has experienced more than 100 years of development, and the construction technology has become more and more perfect. Disturbance, causing different degrees of surface movement and deformation, this phenomenon is particularly significant in soft soil formations. In addition, under complex engineering and hydrogeological conditions, accidents such as ground subsidence, tunnel water gushing, damage to surrounding buildings (structures), ...

Claims

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Application Information

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IPC IPC(8): E21D9/06
Inventor 王建秀邹宝平冯波付慧仙田普卓
Owner TONGJI UNIV
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