3results about How to "Mature construction technology" patented technology

The invention discloses a natural landscape revetment and a construction method thereof, and belongs to the technical field of landscape engineering, and the main body structure of the revetment sequentially comprises a rammed earth layer, a soil layer layered rolling layer and a sandy soil layer from bottom to top; 3-5 pieces of decoration scene stone are arranged in an upstream proper area every 12-15 m; a 2.5-3.5 m aquatic plant planting area is arranged in the midstream; the method comprises the following steps: arranging a wood pile at the downstream, arranging sandy soil, a wood bundle and the wood pile at the upstream area of the wood pile, adopting wickers of 1-5cm and 40-50cm in length as the wood bundle, nailing the wood pile into the soil by 1.5 m according to the distance of 1m, scion, and binding the wood bundle and the wood pile. According to the revetment, natural elements and ecological functions are combined, the construction method is simple and feasible, the stability of the revetment can be effectively enhanced, meanwhile, the attractive and natural landscape effect is created, and good ecological benefits and landscape value are achieved.

This invention relates to the field of slope ecological restoration technology, and discloses a rapid revegetation technology for steep slopes in western Sichuan and its application. This technology uses an oxidized polyacrylamide (PAM) vegetation substrate to construct a layered composite vegetation structure. Through graded spraying, a bottom erosion-resistant layer and a surface ecological growth layer are formed, achieving stable adhesion and rapid consolidation of the vegetation substrate on steep slopes. The modified polyacrylamide has an oxidation degree of 1.0%–5.0% and an addition amount of 0.1%–0.4%, which significantly improves the water retention, compressive strength, freeze-thaw resistance, and erosion stability of the vegetation substrate, and effectively promotes rapid plant establishment and growth. The method includes slope pretreatment, layered spraying, and maintenance management, and is suitable for ecological restoration projects on steep rocky slopes in western Sichuan with slopes of 30°–60° and altitudes of 1000–3500 m. It features high construction efficiency, rapid ecological restoration, and good long-term stability.

This utility model relates to the field of road engineering technology and discloses a frost heave and differential settlement control structure suitable for culvert sections in cold regions. The structure, from top to bottom, includes a roadbed, a fill matrix, a stepped aggregate layer, a stepped high-strength foamed concrete layer, and a culvert. A main drainage pipe is inclinedly arranged in the aggregate layer, and lateral drainage pipes are provided on both sides of the roadbed slopes to drain moisture from the roadbed. The high-strength foamed concrete layer is laid above and on both sides of the culvert, providing good thermal insulation to address freezing issues exacerbated by wind tunnel effects, and buffering the frost heave force of the surrounding soil to prevent direct frost heave force from causing compression damage to the culvert structure. This structure forms a multi-level stiffness transition from flexible to semi-rigid along the culvert transition section of the roadbed, reducing differential settlement and misalignment risks at the connection between the culvert and the roadbed, improving the overall stability of the roadbed and driving safety. The overall structure is reliable, easy to construct, and suitable for widespread application in cold regions.