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Landslide drainage system and construction method thereof

A drainage system and drainage pipe technology, which is applied in waterway systems, drainage structures, sewer pipe systems, etc., can solve the problems of limited drainage radius, large disturbance of landslide mass, and difficulty in construction, and achieves small construction engineering volume and low engineering cost. , the effect of simple construction

Pending Publication Date: 2022-07-08
四川省交通勘察设计研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the landslide body needs to be excavated to support the seepage ditch, which is only suitable for shallow soil landslides, and the construction will greatly disturb the landslide body; the inclined drainage pipe belongs to linear drainage, and the drainage radius is limited; the drainage tunnel well drainage project is large-scale , the size of the drainage tunnel is generally larger than 2m, the construction is difficult and expensive, and it is generally suitable for large-scale thick-layer landslides

Method used

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  • Landslide drainage system and construction method thereof
  • Landslide drainage system and construction method thereof
  • Landslide drainage system and construction method thereof

Examples

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Effect test

Embodiment 1

[0041] combine figure 1 , This embodiment provides a landslide drainage system, including: a plurality of water collecting wells 10, the water collecting wells 10 are arranged vertically, the side walls of the water collecting wells 10 can allow the water in the landslide body 30 to penetrate, and the water collecting wells 10 The inner cavity of the water well 10 is fitted with a permeable backfill body 11, the upper end of the permeable backfill body 11 is provided with an anti-seepage layer 12; a plurality of drainage channels 20, the drainage channels 20 are inclined to one end, and one of the drainage channels 20 at least A lower end of the water collecting well 10 is communicated.

[0042] It should be understood that the water collecting well 10 is vertically arranged in the landslide body 30, usually through rotary drilling or other drilling equipment and techniques, it can be drilled from the upper end of the landslide body 30 to the interior of the landslide body 30,...

Embodiment 2

[0057] combine image 3 , the present embodiment provides a method for building a landslide drainage system, based on the landslide drainage system described in Embodiment 1, comprising the following steps:

[0058] S10 , vertically drilling the water collecting well 10 at the position set by the landslide body 30 .

[0059] Specifically, according to the shape and size of the landslide body 30 , on the landslide body 30 , a rotary drilling rig is used to drill a plurality of vertical shafts in an array without anti-seepage treatment on the side walls of the shafts, thereby forming a water-permeable water collection well 10 .

[0060] S20 , backfill the water collecting well 10 with crushed stone, and build an anti-seepage layer 12 on the upper end of the crushed stone water-permeable backfill body 11 .

[0061] Specifically, pour an appropriate amount of crushed stone into the water collection well 10, and when the distance between the top of the crushed stone layer and the...

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Abstract

The invention discloses a landslide drainage system and a construction method thereof, and relates to the technical field of slope protection. The landslide drainage system comprises a plurality of water collecting wells, the water collecting wells are vertically arranged, water in a landslide body can permeate into the side walls of the water collecting wells, inner cavities of the water collecting wells are matched with water-permeable backfill bodies, and impermeable layers are arranged at the upper ends of the water-permeable backfill bodies; the drainage channels incline towards one end, one drainage channel is at least communicated with the lower end of one water collecting well, landslide mass excavation is not needed, disturbance to the landslide mass is small, the construction work amount is small, the drainage channel is suitable for landslide masses of various thicknesses, the construction work amount can be reduced while sufficient drainage capacity is ensured, and the construction cost is reduced. The construction is simple and convenient. According to the construction method of the landslide drainage system, only the water collecting well and the installation hole of the drainage pipe need to be vertically drilled in the landslide body, the landslide body does not need to be excavated, disturbance to the landslide body is small, the construction work amount is small, and the construction method is suitable for landslide bodies of various thicknesses.

Description

technical field [0001] The invention relates to the technical field of side slope protection, in particular to a landslide drainage system and a construction method thereof. Background technique [0002] Water is one of the important factors that induce landslides, and rainfall infiltration is the main source of water in landslides. The adverse effects of rainfall on landslide stability are mainly manifested in three aspects: increasing the weight of the landslide body, reducing the strength of the landslide body or the soil in the sliding zone, and causing the cracks to fill with water to form hydrostatic pressure. Controlling landslides first has become the basic principle of landslide control design in the industry. [0003] The existing landslide internal drainage measures mainly include support seepage ditches, inclined drainage pipes, and drainage tunnels. Among them, the support seepage ditch needs to be excavated for the landslide body, which can only be applied to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E03F5/04E03F5/10E03F3/02E02D17/20
CPCE03F5/04E03F5/101E03F3/02E02D17/20Y02A10/23
Inventor 王希宝黄钒廖沛源黎良仆甘立松魏记承
Owner 四川省交通勘察设计研究院有限公司