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Reinforced backfill earthwork ramp and construction method thereof

A construction method and earthwork technology, which are applied in excavation, foundation structure engineering, building construction, etc., can solve the problems such as the protection technology and construction method of backfill earthwork ramps, which can save labor, have good stability, and reduce engineering costs. Effect

Inactive Publication Date: 2015-10-21
QINGDAO INST OF SURVEYING & MAPPING SURVEY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no mature and effective protection technology and construction method for backfilling earth-rock slopes.

Method used

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  • Reinforced backfill earthwork ramp and construction method thereof
  • Reinforced backfill earthwork ramp and construction method thereof
  • Reinforced backfill earthwork ramp and construction method thereof

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0028] Embodiment 1 In the backfilled earth-rock slope of this embodiment, one side of the slope leans against a stable structure, and the other side is a side slope to be protected.

[0029] Such as figure 1 As shown, the slope rate of the ramp in this embodiment should be about 1:0.5. Reinforced backfill earth and stone slopes, including ramps and protective structures; the protective structure is a layered repeating structure; each protective structure includes backfill 4, anchor trench 1, geotextile 2; geotextile 2 is laid on anchor trench 1; The backfill soil 4 is pressed on the geotextile 2; a soil bag 3 is set on one side of the slope, and a certain length is reserved on the outside of the geotextile 2, and the soil bag 3 is turned up and pressed into the backfill soil to form a protective structure.

Embodiment 2

[0030] Embodiment 2 In the backfilled earth and rock slope of this embodiment, both sides of the slope are slopes that need to be protected. Such as figure 2 As shown, the slope rate of the ramp in this embodiment should be about 1:0.5. The structure of the reinforced backfilled earth-rock slope is basically the same as that of Example 1, except that: soil bags 3 are set on both sides of the slope of the slope, a certain length is reserved on both sides of the geotextile 2, and soil bags 3 are turned over Then press into the backfill to form a protective structure.

Embodiment 3

[0031] Example 3 The construction method of the reinforced backfill earth-rock slope of the present invention includes the following steps:

[0032] (1) Clean and level the foundation soil at the bottom of the ramp, and recheck the foundation bearing capacity to meet the requirements; excavate anchor ditch; anchor ditch is a trench excavated parallel to the slope direction, the width of the anchor ditch is generally 50cm, and the depth is generally 25 ~30cm.

[0033] (2) Laying the bottom geotextile, the geotextile needs to reserve about 3.5~4m turn-up length on the outside of the slope slope; the zonal width of the geotextile is 3~6m, and the longitudinal length is greater than 50m; the warp direction is the main force Direction, the longitudinal breaking strength is 20~100kN / m, and the latitudinal breaking strength is 15~70kN / m. Geotextiles should be kept horizontal and laid parallel to each other; the longitudinal direction of the geotextiles should be perpendicular to the dire...

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Abstract

The invention belongs to the field of building technology, and particularly to a reinforced backfill earthwork ramp and a construction method thereof. A reinforced backfill earthwork ramp comprises a ramp and a protective structure, and the protective structure has multilayer repetitive structures. Each protective structure has backfill, an anchoring trench, earthwork cloth and earth bags. The earthwork cloth is laid in the anchoring trench, and the backfill presses on the earthwork cloth. The earth bags are arranged at one side of a side slope of a ramp, a portion of at the outside of the earthwork cloth is reserved, and the reserved portion reversely wraps the earth bags and then is pressed in the backfill, to form the protective structure. The construction method of the reinforced backfill earthwork ramp comprises back filling in layers, excavating the anchoring trenches, laying the earthwork cloth in the backfill in layers, arranging the earth bags at one side of a side slope of a ramp, reserving a portion of at the outside of the earthwork cloth, reversely wrapping the earth bags and pressing the reserved portion in the backfill to form the protective structure. By adopting the reinforced backfill earthwork ramp and the construction method thereof, the side slope of the ramp is good in stability, the side slope of the ramp can be ensured safe, and the reinforced backfill earthwork ramp is simple in construction and low in cost.

Description

Technical field [0001] The invention belongs to the field of construction technology, and specifically relates to a backfilling earth-rock slope and a construction method thereof. Background technique [0002] Construction and municipal engineering often involve earth and stone excavation and backfill construction, especially foundation pit engineering. Due to the elevation difference between the work site and the road, it is necessary to set up an earth and stone transportation ramp. When the height of the ramp is large, the protection of the side slope of the ramp becomes an important safety guarantee. At present, the protection of earth and stone slopes is often neglected, and there are large safety hazards and even safety accidents. [0003] At present, the slope rate method is generally used for backfilling earth and stone slopes, which occupies a large space and has poor slope stability. The "Technical Code for Safety of Earth and Stone Works in Construction" (JGJ180-2009) ...

Claims

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Application Information

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IPC IPC(8): E02D17/00E04G27/00
Inventor 李鹏郝胜利査道新聂宁吴刚安庆军张军舰
Owner QINGDAO INST OF SURVEYING & MAPPING SURVEY
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