Soil retaining assembly and connecting embedded steel bar anchoring method thereof

Abstract

The invention relates to the technical field of soil retaining, in particular to a soil retaining assembly and a connecting embedded steel bar anchoring method.The soil retaining assembly comprises a soil retaining wall and a drilled pile, an inner arc-shaped steel plate is arranged on the inner side of an annular reinforcement cage, an outer arc-shaped steel plate is arranged on the outer side of the annular reinforcement cage, the soil retaining wall is connected with connecting embedded steel bars, and the connecting embedded steel bars penetrate through the inner arc-shaped steel plate and the outer arc-shaped steel plate; and the inner arc-shaped steel plate and the outer arc-shaped steel plate clamp the side wall of the annular reinforcement cage from the two sides of the side wall of the annular reinforcement cage through the first locking nut and the second locking nut. According to the soil retaining assembly, by rotating the first locking nut and the second locking nut, the inner arc-shaped steel plate and the outer arc-shaped steel plate clamp the side wall of the annular reinforcement cage from the two sides of the side wall of the annular reinforcement cage so as to complete connection anchoring of the connecting embedded steel bar and the drilled pile, and by adjusting the positions of the second locking nut and the connecting embedded steel bar, the connecting embedded steel bar and the drilled pile can be connected and anchored. And the connecting embedded steel bars can be effectively tensioned, so that the connecting embedded steel bars can effectively transmit tension between the retaining wall and the drilled piles.

Description

technical field

[0001] The invention relates to the technical field of soil retaining, in particular to a soil retaining component and an anchoring method for connecting and planting bars. Background technique

[0002] The Lalin Railway is the Lhasa-Linzhi section of the Sichuan-Tibet Railway. It is located in the southeast of the Tibet Autonomous Region, in the south-Tibet valley between the Gangdise Mountains and the Himalayas. Most of the lines are located in the Yarlung Zangbo suture zone. Tectonic movements and earthquakes occur frequently. In the Yarlung Zangbo River Basin, valley aeolian sand deposits (called "valley aeolian sand") have been widely developed since the geological history, forming a large number of loose slope sand layers. The valley aeolian sand is concentrated in the wide valley section of the river, and the accumulation time is relatively short , the sediment particles are mainly mechanically transported and physically weathered, and the chemical we...

Examples

Embodiment 1

[0059] Such as Figure 1-4 As shown, a retaining assembly described in this embodiment includes a retaining wall 1, a reinforcing mesh 1.1 is embedded in the retaining wall 1, and a bored pile 2 is arranged on one side of the retaining wall 1, so that The bored pile 2 is vertically provided with an annular reinforcement cage 2.0, the inner side of the annular reinforcement cage 2.0 is provided with an inner arc-shaped steel plate 3.1, and the outer side of the annular reinforcement cage 2.0 is provided with an outer arc-shaped steel plate 3.2. The earth wall 1 is connected with a connection planting bar 4, specifically, the connection planting bar 4 is connected with the steel mesh 1.1, and the connection planting bar 4 runs through the inner arc-shaped steel plate 3.1 and the outer arc-shaped steel plate 3.2. The side of the inner curved steel plate 3.1 facing away from the annular reinforcement cage 2.0 abuts against a first lock nut 4.1, and the side of the outer curved ste...

Embodiment 2

[0069] A method for connecting and planting reinforcement anchorage in a soil retaining assembly described in the present application, wherein there are at least two bored piles 2, and all the bored piles 2 are longitudinally spaced apart along the retaining wall 1, Contains the following steps:

[0070] S1. Determine the soil internal friction angle between two adjacent bored piles and the soil weight γ between adjacent bored piles 2, the spacing l between adjacent bored piles 2, the size parameters of bored piles 2 and the size parameters of retaining wall 1 are drawn up;

[0071] S2. Obtain the horizontal cross-sectional area A of the soil and non-soil arch area 5 between the adjacent bored piles 2 based on the distance l between the adjacent bored piles 2 and the size parameters of the bored piles 2, wherein there is a gap between the adjacent bored piles 2 Soil arch ring 6, the soil inside the soil arch ring 6 is the soil and non-soil arch area 5 between the bored piles...

Embodiment 3

[0130] In this embodiment, a specific test is used to further illustrate an anchoring method for connecting planting bars in soil retaining components:

[0131] A certain section of railway is located in high mountains and deep valleys, and the weather is extremely harsh. The terrain is generally flat, with a surface elevation of 2930-2960m and a relative height difference of about 30m. The surface is mostly barren land and a small amount of vegetation is covered. The covering layer of this section is mainly the alluvial fine sand and pebble soil of the Quaternary Holocene system, the groundwater level is 12m below the surface, and the peak acceleration of ground motion in the section is 0.3g. Section DK395+570.5~DK395+620, on the left side of the line, set up cutting bored piles 2 and reinforcement retaining wall 1, and the height of retaining wall 1 is H=7.0m. The distance between the two bored piles is l=2.0m, the diameter d=1.5m, the pile length is 9.0m~20.0m, and the pile ...

technical field

[0001] The invention relates to the technical field of soil retaining, in particular to a soil retaining component and an anchoring method for connecting and planting bars. Background technique

[0002] The Lalin Railway is the Lhasa-Linzhi section of the Sichuan-Tibet Railway. It is located in the southeast of the Tibet Autonomous Region, in the south-Tibet valley between the Gangdise Mountains and the Himalayas. Most of the lines are located in the Yarlung Zangbo suture zone. Tectonic movements and earthquakes occur frequently. In the Yarlung Zangbo River Basin, valley aeolian sand deposits (called "valley aeolian sand") have been widely developed since the geological history, forming a large number of loose slope sand layers. The valley aeolian sand is concentrated in the wide valley section of the river, and the accumulation time is relatively short , the sediment particles are mainly mechanically transported and physically weathered, and the chemical we...

Examples

Embodiment 1

[0059] Such as Figure 1-4 As shown, a retaining assembly described in this embodiment includes a retaining wall 1, a reinforcing mesh 1.1 is embedded in the retaining wall 1, and a bored pile 2 is arranged on one side of the retaining wall 1, so that The bored pile 2 is vertically provided with an annular reinforcement cage 2.0, the inner side of the annular reinforcement cage 2.0 is provided with an inner arc-shaped steel plate 3.1, and the outer side of the annular reinforcement cage 2.0 is provided with an outer arc-shaped steel plate 3.2. The earth wall 1 is connected with a connection planting bar 4, specifically, the connection planting bar 4 is connected with the steel mesh 1.1, and the connection planting bar 4 runs through the inner arc-shaped steel plate 3.1 and the outer arc-shaped steel plate 3.2. The side of the inner curved steel plate 3.1 facing away from the annular reinforcement cage 2.0 abuts against a first lock nut 4.1, and the side of the outer curved ste...

Embodiment 2

[0069] A method for connecting and planting reinforcement anchorage in a soil retaining assembly described in the present application, wherein there are at least two bored piles 2, and all the bored piles 2 are longitudinally spaced apart along the retaining wall 1, Contains the following steps:

[0070] S1. Determine the soil internal friction angle between two adjacent bored piles and the soil weight γ between adjacent bored piles 2, the spacing l between adjacent bored piles 2, the size parameters of bored piles 2 and the size parameters of retaining wall 1 are drawn up;

[0071] S2. Obtain the horizontal cross-sectional area A of the soil and non-soil arch area 5 between the adjacent bored piles 2 based on the distance l between the adjacent bored piles 2 and the size parameters of the bored piles 2, wherein there is a gap between the adjacent bored piles 2 Soil arch ring 6, the soil inside the soil arch ring 6 is the soil and non-soil arch area 5 between the bored piles...

Embodiment 3

[0130] In this embodiment, a specific test is used to further illustrate an anchoring method for connecting planting bars in soil retaining components:

[0131] A certain section of railway is located in high mountains and deep valleys, and the weather is extremely harsh. The terrain is generally flat, with a surface elevation of 2930-2960m and a relative height difference of about 30m. The surface is mostly barren land and a small amount of vegetation is covered. The covering layer of this section is mainly the alluvial fine sand and pebble soil of the Quaternary Holocene system, the groundwater level is 12m below the surface, and the peak acceleration of ground motion in the section is 0.3g. Section DK395+570.5~DK395+620, on the left side of the line, set up cutting bored piles 2 and reinforcement retaining wall 1, and the height of retaining wall 1 is H=7.0m. The distance between the two bored piles is l=2.0m, the diameter d=1.5m, the pile length is 9.0m~20.0m, and the pile ...

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