A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Construction method for filling foam light soil foundation pit of railroad bed in soft soil area
The invention discloses a construction method for filling a foam light soil foundation pit of a railroad bed in a soft soil area, which comprises the following steps of: performing water supply, electrification, paving, electrification communication and site leveling on the original ground, and then performing roadbed construction on the original bottom surface; performing foundation pit supporting construction and cast-in-situ bored pile construction, excavating inter-pile soil layer by layer, and performing inter-pile soil nailing anchor rod construction between piles; after the soil body is excavated to the designed elevation, performing construction of a fixed structure; after construction of the fixed structure is completed, laying a sandy gravel cushion layer at the bottom of the foundation, and laying a composite geomembrane at the top of the cushion layer; filling light soil is in a layered mode from the bottom of the foundation pit, laying a layer of galvanized wire mesh whenthe light soil is filled to the position 0.4-0.6 m below the elevation of the top face, and after flattening, filling the light soil to the top face of the foundation pit; laying a rubble layer on the top layer of the foam light soil, and laying a layer of composite geomembrane in the rubble layer. The construction quality of the foundation pit fill roadbed in the soft soil area in the limited area can be ensured; and the reliability of roadbed filling construction is ensured.
本发明公开了一种软土地区铁路路基泡沫轻质土基坑填筑的施工方法，包括：对原地面进行通水、通电、通路、通电讯和平整场地后，对原底面进行路基施工；进行基坑支护施工和钻孔灌注桩施工，逐层开挖桩间土体，并在桩间进行桩间土钉锚杆的施工；待土体开挖至设计标高后，进行固定结构物的施工；固定结构物施工完成后，在地基底部铺设砂卵石垫层，垫层顶部铺设复合土工膜；从基坑底开始分层填筑轻质土，当轻质土填至顶面标高以下0.4～0.6m时，铺设一层镀锌铁丝网，整平后再填筑轻质土至基坑顶面；在泡沫轻质土顶层铺设碎石层，并在碎石层中夹铺一层复合土工膜。本发明能够确保受限区域中软土地区基坑填方路基的施工质量；保证了路基填方填料施工的可靠性。
Construction method for filling foam light soil foundation pit of railroad bed in soft soil area
The invention discloses a construction method for filling a foam light soil foundation pit of a railroad bed in a soft soil area, which comprises the following steps of: performing water supply, electrification, paving, electrification communication and site leveling on the original ground, and then performing roadbed construction on the original bottom surface; performing foundation pit supporting construction and cast-in-situ bored pile construction, excavating inter-pile soil layer by layer, and performing inter-pile soil nailing anchor rod construction between piles; after the soil body is excavated to the designed elevation, performing construction of a fixed structure; after construction of the fixed structure is completed, laying a sandy gravel cushion layer at the bottom of the foundation, and laying a composite geomembrane at the top of the cushion layer; filling light soil is in a layered mode from the bottom of the foundation pit, laying a layer of galvanized wire mesh whenthe light soil is filled to the position 0.4-0.6 m below the elevation of the top face, and after flattening, filling the light soil to the top face of the foundation pit; laying a rubble layer on the top layer of the foam light soil, and laying a layer of composite geomembrane in the rubble layer. The construction quality of the foundation pit fill roadbed in the soft soil area in the limited area can be ensured; and the reliability of roadbed filling construction is ensured.
本发明公开了一种软土地区铁路路基泡沫轻质土基坑填筑的施工方法，包括：对原地面进行通水、通电、通路、通电讯和平整场地后，对原底面进行路基施工；进行基坑支护施工和钻孔灌注桩施工，逐层开挖桩间土体，并在桩间进行桩间土钉锚杆的施工；待土体开挖至设计标高后，进行固定结构物的施工；固定结构物施工完成后，在地基底部铺设砂卵石垫层，垫层顶部铺设复合土工膜；从基坑底开始分层填筑轻质土，当轻质土填至顶面标高以下0.4～0.6m时，铺设一层镀锌铁丝网，整平后再填筑轻质土至基坑顶面；在泡沫轻质土顶层铺设碎石层，并在碎石层中夹铺一层复合土工膜。本发明能够确保受限区域中软土地区基坑填方路基的施工质量；保证了路基填方填料施工的可靠性。
Construction method for filling foam light soil foundation pit of railroad bed in soft soil area
一种软土地区铁路路基泡沫轻质土基坑填筑的施工方法
ZHANG QIANG (author) / ZHOU KAI (author) / ZHANG XIANG (author) / WANG DIANHUI (author) / OU CHENGZHANG (author) / YE HAICHANG (author) / WANG FEI (author) / YU DONGBIN (author) / MA WENJUN (author) / QIU LEI (author)
2020-05-08
Patent
Electronic Resource
Chinese
| European Patent Office | 2022
Shallow soft soil foundation foam light soil embankment structure and construction method
| European Patent Office | 2021
Foundation pit supporting construction method in soft soil area
| European Patent Office | 2023
Construction method for filling intercommunication ramps with foam light soil
| European Patent Office | 2021