A kind of geocell reinforced high and steep side slope and construction method thereof
A geocell, high and steep slope technology, used in excavation, infrastructure engineering, construction, etc., can solve problems such as poor protection effect of ultra-high slopes, reduce and destroy, enhance stability, eliminate the effect of destruction
Inactive Publication Date: 2019-02-19
CHANGAN UNIV +1
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[0009] Chinese invention patent application CN 103572777 A discloses a geocell retaining wall and its construction method. This retaining wall is suitable for slope protection of about 10m, and has poor protection effect for super high slopes.
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[0028] refer to Figure 1-2 , the construction method of geocell reinforced high steep slope is characterized in that comprising the following steps:
[0029] A. Carry out line setting and excavation, stop excavation when mechanical excavation is 20-30cm away from the design elevation of the base, manually clean up to the design elevation, and roll with a vibratory roller; the foundation is composed of cement and sand and gravel mixing, of which cement The content of sand and gravel is 35%, the content of sand and gravel is 65%, the diameter of sand is 0.5-1.5mm, and the diameter of gravel is 1.5-35mm. Use steel bars with a length of 2m and a diameter of 18mm as foundation reinforcement nails, and extend the length of the foundation every Arrange one at 2m, and arrange one at intervals of 1m in the width direction of the retaining wall, and drive into the foundation for reinforcement;
[0030] B. After the foundation construction is completed, the geocell 1 is opened on the f...
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Abstract
The invention discloses a construction method for a geocell reinforced high and steep slope, comprising the following steps: A, excavating the base, using cement and gravel to mix and pour the base layer; B, opening the geocell on the foundation, Filling with cement sand and gravel; C. After each layer of filler is filled, use a loader to fill the soil; D. Each additional layer of geocell shrinks back by 10cm; open the geocell on the cement sand gravel layer , filled with sand and gravel, used as the wall drainage layer, from which a layer of sand and gravel drainage layer is filled in the geocell every 2m upwards; The first tie belts are respectively provided with the second tie belts at 30m, 37.5m, 45m, 48.75m, and 52.5m from the bottom surface; F, the top is filled with 28 ash soil to make a U-shaped groove-like section . The invention can solve the deficiencies of the prior art and improve the protection effect of super high slopes.
Description
technical field [0001] The invention relates to the technical field of slope protection, in particular to a geocell-reinforced high and steep slope and a construction method thereof. Background technique [0002] With the rapid development of high-speed railways and expressways in my country, high-slope embankments and cuttings can be seen everywhere, and their stability has become a difficulty that plagues road safety. [0003] In railway and highway subgrade engineering, reinforced engineering structures are widely used to stabilize embankments, road cuttings, tunnel openings and subgrade slopes at both ends of bridges, etc., mainly for bearing the lateral soil pressure of soil. Reinforcement engineering structures include supporting and anchoring structures such as retaining walls, anti-slide piles, and prestressed anchor cables. [0004] retaining wall. Retaining walls are the main reinforcement engineering structures widely used in geotechnical engineering. The desig...
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IPC IPC(8): E02D17/20
CPCE02D17/20
Inventor宋飞曾四平陈军夏帅帅曹更任马健玮
OwnerCHANGAN UNIV