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Loess high fill in hill removing and gully filling projects and construction method of loess high fill

A loess high filling and engineering technology, applied in filling, foundation structure engineering, soil protection and other directions, can solve problems such as uneven settlement of foundations, slope deformation and damage, improve physical and mechanical properties, enhance earthquake resistance and vibration resistance Performance, the effect of solving poor drainage

Inactive Publication Date: 2016-12-07
NORTHWEST UNIV(CN)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The present invention provides a high loess filling and its construction method in the mountain-moving ditch filling project, which is used to solve the problems in the prior art that the subsidence caused by high filling and deep excavation eventually leads to uneven settlement of the foundation and deformation and damage of the slope

Method used

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  • Loess high fill in hill removing and gully filling projects and construction method of loess high fill

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Embodiment 1

[0036]Embodiment 1 of the present invention provides a kind of loess high fill in the project of moving mountains and ditch filling. The high fill is composed of lime pile composite base, crushed stone drainage layer and loess layer from bottom to top; the lime pile composite base includes lime piles 1 and the lime soil cushion 2 above the lime pile 1; the gravel drainage layer is composed of composite geomembrane 3, gravel layer and three-dimensional composite drainage network 4 from bottom to top; the loess layer is composed of compacted loess layer 13 and reinforced loess The layer 7 is composed of layers from bottom to top. The reinforced loess layer 7 is evenly doped with glass fiber 6, and the reinforced loess layer 7 is laid with multi-layer bidirectional geogrids 5. Specifically, the diameter of the lime pile 1, the distance between the piles and The depth should be determined according to the pre-calculation of the load of the upper composite filling body and the beari...

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Abstract

The invention discloses loess high fill in hill removing and gully filling projects and a construction method of the loess high fill, and relates to the technical field of high fill processing. The loess high fill and the construction method are used for solving the problem that in the prior art, because of high fill deep excavation, saturated yielding is caused and finally differential settlement of foundations and side slope deformation damage are caused. The loess high fill in the hill removing and gully filling projects is sequentially composed of a lime pile composite foundation layer, a rubble water drainage layer and a loess layer from bottom to top. By means of the loess high fill in hill removing and gully filling projects and the construction method of the loess high fill, the compression strength, tensile strength and shear strength of the whole loess high fill are improved, and the anti-seismic and anti-shock performance of the loess high fill are enhanced; and by laying and combining a composite geomembrane, a rubble layer and a three-dimensional composite water drainage net, water drainage channels inside the high fill are formed, and the phenomenon that because of high fill deep excavation, saturated yielding is caused and finally differential settlement of the foundations and side slope deformation damage are caused is effectively eliminated.

Description

technical field [0001] The invention relates to the technical field of high fill treatment, and more specifically relates to a high loess fill in a mountain-moving ditch filling project and a construction method thereof. Background technique [0002] The distribution area of ​​loess in my country reaches 6.4×10 5 km 2 , there are more than 700 important cities and towns distributed on the vast Loess Plateau, inhabiting 1 / 6 of my country's population. In recent years, a large number of long, large, high, and difficult engineering projects have been carried out in the Loess Plateau area. Among them, the Zheng-Xi, Da-Xi high-speed railway, and the land reclamation projects of Yan'an and Lanzhou Yishan and filling trenches have attracted worldwide attention. widespread attention within. [0003] The topography and geological environment of the Loess Plateau are complex, and a large number of high excavation and deep filling projects have been encountered in the process of mov...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D17/18E02D3/10E02D3/00
CPCE02D3/005E02D3/10E02D17/18E02D2300/0053E02D2300/0084
Inventor 谢婉丽郭倩怡王勇杜蕾李东明
Owner NORTHWEST UNIV(CN)
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