Metro internal-bracing-free track panel shaft and construction method thereof

A construction method and technology of supporting rails, which are applied in shaft linings, underground chambers, shaft equipment, etc., can solve problems such as the impact of water-stop effects, restrictions on applicable conditions, and high construction risks, so as to avoid water leakage and reduce construction costs. Site, reduce the effect of engineering investment

Active Publication Date: 2016-07-20
GUANGZHOU METRO DESIGN & RES INST
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  • Claims
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Problems solved by technology

However, during the construction of the anchor cable, the water-stop curtain of the three-axis mixing pile is pierced, which has a great impact on the water-stop effect
The applicable conditions of the anchor cable scheme are limited. For soft soil or poor ground, due to t

Method used

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  • Metro internal-bracing-free track panel shaft and construction method thereof
  • Metro internal-bracing-free track panel shaft and construction method thereof
  • Metro internal-bracing-free track panel shaft and construction method thereof

Examples

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Embodiment Construction

[0037] Such as Figure 1-Figure 4 As shown, the present invention provides a subway well without internal support rails, including an enclosure structure and a main structure, the enclosure structure includes an oppositely arranged ground connection wall 1, and the main structure is arranged on the enclosure structure Inside, it includes a side wall 2, at least one vertical leg wall 3 and at least one waist beam 4 arranged on the side wall 2, and the side wall 2 is arranged close to the wall 1.

[0038] The ground connection wall 1 is a reinforced concrete structure, and a crown beam 5 is arranged on the top of the ground connection wall, and the crown beam 5 connects the opposite ground connection walls 1 . The enclosure structure also includes a central column 6 and an inner support 12 arranged between the opposite side walls 2, the central column 6 is connected by a connecting beam, the top of the central column is connected with the inner support, and the inner support 12 ...

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PUM

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Abstract

The invention provides a construction method of a metro internal-bracing-free track panel shaft. The construction method includes following steps: (1), constructing a diaphragm wall; (2), constructing a foundation pit, and sequentially constructing a top beam and an internal bracing along with excavating; (3), constructing a baseplate, and demounting the internal bracing positioned downmost the foundation pit after strength of the baseplate reaches a certain degree; (4), constructing a side wall of a negative first floor, synchronously constructing a vertical coupled shear wall, a waist beam and a side wall within a range of a negative second floor; (5), constructing a middle plate, reserving a hole for the track panel shaft on the middle plate, and synchronously constructing a vertical coupled shear wall, a waist beam and a side wall within a range of the negative first floor; (7), constructing a top plate, reserving a hole for the track panel shaft on the top plate, and after strength of the top plate reaches a certain degree, demounting the internal bracing uppermost the foundation pit. The construction method has good water stopping effect, so that water leakage is avoided and big influence on surrounding environment during construction is avoided.

Description

technical field [0001] The invention relates to a subway non-inner support rail drainage well and a construction method thereof, belonging to the technical field of rail transit engineering construction. Background technique [0002] With the acceleration of urbanization, the urban population, regional planning and urban ecological environment are facing enormous pressure. The development and utilization of urban underground space has become a hot spot of concern for many people. Rapid public transport system is an important way to solve urban congestion. Practice has proved that subways play an irreplaceable role in the transportation systems of large cities in most economically developed regions in the world, such as Tokyo, Moscow, and London, due to their fast, clean, and efficient features. In recent years, my country's subway construction has also developed rapidly. As of the end of 2015, a total of 36 cities in my country have been approved to build urban rail transi...

Claims

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Application Information

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IPC IPC(8): E21D9/14E21D9/00E21D11/00E21D11/10E21D11/38
CPCE21D9/00E21D9/14E21D11/003E21D11/107E21D11/38
Inventor 王凌翟利华张跃明史策辉
Owner GUANGZHOU METRO DESIGN & RES INST
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