CN203594039U

CN203594039U - Underground water cut slope heat preservation protection structure

Info

Publication number: CN203594039U
Application number: CN201320800693.3U
Authority: CN
Inventors: 李德柱; 陈则连; 乔平; 周正礼; 阎宝芳; 杨德喜; 魏志伟; 李莉
Original assignee: Third Railway Survey and Design Institute Group Corp
Current assignee: China Railway Design Corp
Priority date: 2013-12-05
Filing date: 2013-12-05
Publication date: 2014-05-14
Anticipated expiration: 2023-12-05

Abstract

The utility model relates to an underground water cut slope heat preservation protection structure. The underground water cut slope heat preservation protection structure comprises a mortar rubble revetment, a water seepage blind ditch, a water seepage blind tube, a broken stone hardcore and a heat preservation layer. The water seepage blind ditch is formed below a cut slope side ditch platform. The water seepage blind tube and the broken stone hardcore are laid in a cut slope. The heat preservation layer is laid on the broken stone hardcore. The water seepage blind tube is communicated with the water seepage blind ditch below the side ditch platform. The mortar rubble revetment is arranged on the heat preservation layer. The broken stone hardcore and the water seepage blind tube have permeability to form a drainage channel, and seeped underground water is drained out of the slope through the water seepage blind ditch. The heat preservation layer has the heat preservation function, prevents the broken stone hardcore from being frozen and makes seeped water of the slope smoothly drained. The mortar rubble revetment has the function of protecting the cut slope. The underground water cut slope heat preservation protection structure has the advantages of being good in drainage effect, easy and convenient to construct and low in manufacturing cost, can prevent underground water from damaging and affecting the railroad slope and has significance in guaranteeing firmness and stabilization of a roadbed.

Description

Underground water cutting side slope insulation safeguard structure

Technical field

The utility model belongs to railway subgrade works, particularly relates to a kind of insulation safeguard structure of underground water cutting side slope.

Background technology

Underground water has very large harm and impact to railway bed and side slope strength and stability thereof, performs eliminating ground water engineering, very big to guaranteeing the firm and stable relation of roadbed.For the cutting of excavation moulding, conventionally take, under lateral sulcus platform, blind drain is set at present, side slope is established the measures such as side slope sewer and is got rid of underground water.Fig. 1 is the subgrade structure that blind drain is set under prior art lateral sulcus platform, formed by mortar rubble masonry pavement 3 and blind drain 4, mainly the underground water that reduces and get rid of roadbed scope by blind drain, although this structure can be got rid of near underground water subgrade bed, for severe cold area, the depth of frost penetration is large, groundwater table is higher than curb location, cut slope infiltration is difficult for getting rid of, and underground water will exert an influence to side slope, and winter side slope icing effect traffic safety.Fig. 2 is the subgrade structure that prior art side slope arranges side slope sewer, formed by mortar rubble masonry pavement 3, blind drain 4 and side slope sewer 8, mainly the underground water of being got rid of subgrade bed and side slope by side slope sewer 8 and blind drain 4, although this structure can be got rid of slope underground water, but for rock matter cut slope, constructional difficulties, cost is high, and drainage effect is not good.

Utility model content

Get rid of the problem of the cut slope structure existence of underground water for existing railway, the utility model is released a kind of underground water cutting side slope insulation safeguard structure, its objective is, infiltration blind pipe is set on cut slope, on infiltration blind pipe, lay hardcore bed, insulation layer is set on hardcore bed, makes severe cold area rocky cutting slope drainage channel prevent from freezing, so that infiltration is discharged smoothly.

The underground water cutting side slope insulation safeguard structure that the utility model relates to, for excavating the cut slope of moulding, comprises mortar rubble masonry pavement, blind drain, infiltration blind pipe, hardcore bed and insulation layer.Under cut slope lateral sulcus platform, blind drain is set, on cut slope, arrange and lay infiltration blind pipe, on infiltration blind pipe, lay hardcore bed, on hardcore bed, lay insulation layer, infiltration blind pipe is communicated with the blind drain under lateral sulcus platform, and mortar rubble masonry pavement is arranged on insulation layer.

Infiltration blind pipe adopts plastic filter pipe, is covered with infiltration micropore, to be layed on cut slope perpendicular to roadbed line direction is alternate on pipe.The spacing of infiltration blind pipe is 3-5m, and the lower end of infiltration blind pipe connects blind drain.Infiltration blind pipe, hardcore bed and blind drain form drainage channel, and the underground water oozing out enters blind drain, then discharges cut slope through hardcore bed, infiltration blind pipe.Insulation layer has insulation effect, prevents that hardcore bed from freezing, to side slope seepage is discharged smoothly, mortar rubble masonry pavement plays the effect of protection cut slope.

Underground water cutting side slope that the utility model relates to insulation safeguard structure has advantages of that drainage effect is good, easy construction, cost are low, prevents that underground water from producing harm and impact to railway slope, firmly and stable has an important function to what guarantee roadbed.

Accompanying drawing explanation

Fig. 1 is the road structure schematic diagram that blind drain is set under the lateral sulcus platform of prior art;

Fig. 2 is the road structure schematic diagram of the side slope sewer of prior art;

Fig. 3 is the underground water cutting side slope insulation protection road structure schematic diagram that the utility model relates to;

Fig. 4 is the part-structure enlarged drawing of Fig. 3.

Description of symbols in figure:

1, stratum 2, phreatic line

3, mortar rubble masonry pavement 4, blind drain

5, infiltration blind pipe 6, hardcore bed

7, insulation layer 8, side slope sewer

The specific embodiment

Below in conjunction with accompanying drawing, the technical solution of the utility model is described further.Fig. 3 and Fig. 4 show that the underground water cutting side slope that the utility model relates to is incubated the basic structure of protecting, as shown in the figure, the underground water cutting side slope insulation safeguard structure that the utility model relates to, for excavating the cut slope of moulding, comprises mortar rubble masonry pavement 3, blind drain 4, infiltration blind pipe 5, hardcore bed 6 and insulation layer 7.Under cut slope lateral sulcus platform, blind drain 4 is set, on cut slope, arrange and lay infiltration blind pipe 5, on infiltration blind pipe 5, lay hardcore bed 6, on hardcore bed 6, lay insulation layer 7, infiltration blind pipe 5 is communicated with the blind drain 4 under lateral sulcus platform, and mortar rubble masonry pavement 3 is arranged on insulation layer 7.

Infiltration blind pipe 5 adopts plastic filter pipe, is covered with infiltration micropore, to be layed on cut slope perpendicular to roadbed line direction is alternate on pipe.The spacing of infiltration blind pipe 5 is 3-5m, and the lower end of infiltration blind pipe 5 connects blind drain 4.Infiltration blind pipe 5, hardcore bed 6 and blind drain 4 form drainage channel, and the underground water oozing out enters blind drain 4, then discharges cut slope through hardcore bed 6, infiltration blind pipe 5.Insulation layer 7 has insulation effect, prevents that hardcore bed 6 from freezing, to side slope seepage is discharged smoothly, mortar rubble masonry pavement 3 plays the effect of protection cut slope.

The underground water cutting side slope insulation safeguard structure work progress that the utility model relates to: first lay infiltration blind pipe 5 by certain spacing distance horizontal path direction on smooth-going cut slope, then lay hardcore bed 6 thereon, ram bat closely knit, infiltration blind pipe 5 and hardcore bed 6 are communicated with the blind drain 4 having arranged, on hardcore bed 6, lay insulation layer 7, mortar rubble masonry pavement 3 is set on insulation layer 7, forms underground water cutting side slope insulation safeguard structure.

Claims

1. a underground water cutting side slope insulation safeguard structure, for excavating the cut slope of moulding, it is characterized in that: comprise mortar rubble masonry pavement (3), blind drain (4), infiltration blind pipe (5), hardcore bed (6) and insulation layer (7), blind drain (4) is set under cut slope lateral sulcus platform, on cut slope, arrange and lay infiltration blind pipe (5), the upper hardcore bed (6) of laying of infiltration blind pipe (5), the upper insulation layer (7) of laying of hardcore bed (6), infiltration blind pipe (5) is communicated with the blind drain (4) under lateral sulcus platform, mortar rubble masonry pavement (3) is arranged on insulation layer (7).

2. underground water cutting side slope insulation safeguard structure according to claim 1, it is characterized in that: described infiltration blind pipe (5) adopts plastic filter pipe, on pipe, be covered with infiltration micropore, to be layed on cut slope perpendicular to roadbed line direction is alternate, the lower end of infiltration blind pipe (5) connects blind drain (4); The spacing of infiltration blind pipe (5) is 3-5m.