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Construction method of reinforced concrete protection pile in loess areas

A reinforced concrete and construction method technology, applied in excavation, sheet pile walls, foundation structure engineering, etc., can solve the problems of large investment and affecting the normal operation of existing lines, etc., and achieve simple hole formation, good economic and social effects, and easy construction Effect

Inactive Publication Date: 2012-05-09
CHINA RAILWAY SIYUAN SURVEY & DESIGN GRP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Due to the special soil quality in the loess area, the construction of protective piles requires a large investment, and in the construction process, there are inevitably disadvantages to the catenary of the existing lines, and the construction process affects the normal operation of the existing lines

Method used

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  • Construction method of reinforced concrete protection pile in loess areas
  • Construction method of reinforced concrete protection pile in loess areas

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Embodiment Construction

[0018] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

[0019] The construction method of reinforced concrete protective pile in loess area includes the following steps, see figure 1 The construction process shown:

[0020] ①. Use a Luoyang shovel with a semicircular end and a diameter of 150mm-170mm to make a hole below the construction ground. The handle end of the Luoyang shovel has an external thread;

[0021] ②. When the external thread at the end of the Luoyang shovel touches the ground, connect the extension rod with a screw hole at one end and a thread at the other end to the end of the Luoyang shovel by thread connection, and continue digging;

[0022] ③. When the external thread at the end of the extension rod touches the ground, connect another extension rod and continue digging until the hole reaches the depth of the protective pile;

[0023] ④. Insert steel bars with a diameter of 15mm...

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Abstract

The invention discloses a construction method of a reinforced concrete protection pile in loess areas, comprising the following steps of: (1) opening holes below the ground by means of a Luoyang shovel having a semicircular end part and a diameter of 150-170 mm; (2) when the external threads of the end part of the Luoyang shovel are in contact with the ground, connecting an extension rod with one end provided with a threaded hole and the other end provided with screw threads to the end part of the Luoyang shovel in a threaded connection manner, and continuing digging; (3) when the external threaded of the end part of the extension rod are in contact with the earth layer, connecting other extension rod and continuing digging until the hole is opened to the depth of the protection pile; (4) inserting a reinforcing steel bar having a diameter of 15-17 mm in the hole, and pouring C15 plain concrete into the hole and compacting the concrete; and (5) cutting off the reinforced concrete to expose the head, thereby completing the construction of the concrete protective pile. The construction method is applied to the range of electrified existing lines in the loess areas; the construction method effectively overcomes the disadvantageous effects of a large-sized construction machine on an existing line contact network and avoids the influence on the running of the existing lines; and the construction method is easy for construction and excellent in effect.

Description

technical field [0001] The invention relates to a reinforced concrete protective pile method, in particular to a construction method for reinforced concrete protective piles in loess areas. Background technique [0002] Safety protection must be set up for the construction of the existing railway line foundation, and the construction of protective facilities must not pose a safety threat to existing facilities such as catenary lines and infrastructure foundations. Due to the height limit control of the high-voltage catenary line, large-scale machinery cannot be used for construction. Therefore, other construction tools must be selected for construction on the protective piles of the existing electrified lines. [0003] Due to the special soil quality in the loess area, the construction of protective piles requires a large investment, and in the construction process, there will inevitably be disadvantages to the catenary of the existing lines, and the construction process wil...

Claims

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Application Information

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IPC IPC(8): E02D5/36E02D17/06
Inventor 吴东晏军李小和赵新益丁建荣陈德平邬强刘庆辉
Owner CHINA RAILWAY SIYUAN SURVEY & DESIGN GRP
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