CN213867145U

CN213867145U - Roadbed reinforcing structure adopting soil-lime piles

Info

Publication number: CN213867145U
Application number: CN202022189381.6U
Authority: CN
Inventors: 靳志强; 何训林; 王亚楠; 杜继鹏; 李东勇
Original assignee: CCCC Third Highway Engineering Co Ltd
Current assignee: CCCC Third Highway Engineering Co Ltd
Priority date: 2020-09-29
Filing date: 2020-09-29
Publication date: 2021-08-03
Anticipated expiration: 2030-09-29

Abstract

The utility model relates to a road bed reinforcement field, concretely relates to roadbed reinforcement structure adopting lime soil piles, including a ground horizontal line, a embankment, a roadbed bottom layer and a roadbed surface layer are arranged above the ground horizontal line in sequence, a high-strength geogrid and a lime soil cushion layer are arranged below the ground horizontal line in sequence, a basal layer is arranged below the lime soil cushion layer, the lime soil piles are arranged in the basal layer, and grooves are arranged at the top ends of the lime soil piles; the first buckle and the second buckle are arranged on two sides of the inner wall of the groove, the convex block is arranged in the middle of the groove, and the first buckle and the second buckle are buckled on the high-strength geogrid, so that the firm strength of the high-strength geogrid is enhanced, and the stability of a roadbed is improved; all be provided with the spring between first buckle and lug and second buckle and the lug, efficiency when having improved buckle and the geogrid assembly that excels in.

Description

Roadbed reinforcing structure adopting soil-lime piles

Technical Field

The utility model relates to a road bed consolidates the field, concretely relates to adopt road bed reinforced structure of grey soil pile.

Background

The roadbed is a basic building under a railway track or a road pavement, is a linear structure constructed by soil or stones, and the material of the building roadbed, whether filled or dug, is mainly an earth-stone discrete material, so that the roadbed can be divided into an earth roadbed, a stone roadbed and an earth-stone roadbed from the material aspect, and the roadbed is frequently subjected to the change and damage of natural conditions such as geology, water, rainfall, climate, earthquake and the like, and has poor resistance. Therefore, the roadbed should have sufficient firmness, stability and durability.

At present, there are many methods for reinforcing foundation, including prepressing method, displacement method, vibration compaction method and lime-soil pile reinforcing method, in which the lime-soil pile is formed into a hole in the foundation by means of driving steel sleeve, and the foundation is compacted by means of extrusion, then the hole is filled with plain soil layer by layer to form a soil pile or lime-soil pile. However, in case of natural disasters such as earthquake, the soil-lime piles cannot be directly connected with the upper buildings to play a role of supporting and reinforcing, so that the resistance of the reinforced roadbed is deteriorated.

Disclosure of Invention

The utility model aims at providing an adopt road bed reinforced structure of lime-soil pile to firm intensity is low, the poor stability's problem in the road bed among the solution prior art.

In order to realize the purpose, the technical scheme of the utility model is that:

a roadbed reinforcing structure adopting lime-soil piles comprises a ground horizontal line, wherein a embankment, a roadbed bottom layer and a roadbed surface layer are sequentially arranged above the ground horizontal line, a high-strength geogrid and a lime-soil cushion layer are sequentially arranged below the ground horizontal line, a substrate layer is arranged below the lime-soil cushion layer, the lime-soil piles are arranged in the substrate layer, and grooves are formed in the top ends of the lime-soil piles; the utility model discloses a geogrid, including recess inner wall, recess, first buckle and second buckle, the recess is provided with the lug in the middle of the recess, first buckle and second buckle lock joint all are provided with the spring between first buckle and lug and second buckle and the lug on the geogrid that excels in.

Further, the spring is fixedly connected with the first buckle, the second buckle and the lug.

Further, first buckle and second buckle are the type of falling L.

Further, the vertical sections of the first buckle and the second buckle are matched with the groove and are in sliding connection with the groove.

Further, the distance from the outer edge of the horizontal section of the first buckle and the second buckle to the central axis of the lime soil pile is larger than the radius of the lime soil pile.

Further, the length of the vertical section of the first buckle and the length of the vertical section of the second buckle are equal to the sum of the heights of the groove, the lime-soil cushion layer and the high-strength geogrid.

Further, a water drainage pipe is arranged on the right side of the lime soil pile.

Through the technical scheme, the beneficial effects of the utility model are that:

1. the utility model is provided with the lime-soil pile below the ground horizontal line, the lime-soil pile is provided with the first buckle and the second buckle, and the first buckle and the second buckle are buckled on the high-strength geogrid, so that the firm strength of the high-strength geogrid is enhanced, and the stability of the roadbed is improved; all be provided with the spring between first buckle and lug and second buckle and lug, efficiency when can improving buckle and the geogrid assembly that excels in.

2. The utility model discloses a vertical section and the recess phase-match of first buckle and second buckle, when avoiding receiving the load on upper portion, the buckle takes place to twist reverse, leads to consolidating the emergence of the unstable condition.

3. The utility model discloses the drain pipe that sets up on the right side of lime-soil pile can in time be discharged the rainwater on the road bed away, has avoided ground fracture, and the rainwater permeates the lower floor, influences the reinforcement intensity of lime-soil pile.

Drawings

Fig. 1 is a schematic structural view of a roadbed reinforcing structure using a soil pile;

FIG. 2 is a schematic structural view of a soil-lime pile;

fig. 3 is a schematic structural view of the connection of the soil-lime piles with the high-strength geogrid;

FIG. 4 is a schematic structural view of the first buckle;

fig. 5 is a partial enlarged view at a.

The reference numbers in the drawings are as follows: 1 is the road bed top layer, 2 is the road bed bottom, 3 is the embankment, 4 is ground horizontal line, 5 is the lime-soil pile, 6 is high-strength geogrids, 7 is the lime-soil bed course, 8 is the drain pipe, 9 is the recess, 10 is first buckle, 11 is the second buckle, 12 is the lug, 13 is the spring, 14 is the stratum basale, 15 is vertical section, 16 is the horizontal segment.

Detailed Description

The invention will be further explained with reference to the drawings and the detailed description below:

as shown in fig. 1 to 5, a roadbed reinforcing structure using a soil ash pile comprises a ground horizontal line 4, wherein a embankment 3, a roadbed bottom layer 2 and a roadbed surface layer 1 are sequentially arranged above the ground horizontal line 4, a high-strength geogrid 6 and a soil ash cushion layer 7 are sequentially arranged below the ground horizontal line 4, a base layer 14 is arranged below the soil ash cushion layer 7, a soil ash pile 5 is arranged in the base layer 14, and a groove 9 is arranged at the top end of the soil ash pile 5; a first buckle 10 and a second buckle 11 are arranged on two sides of the inner wall of the groove 9, the distance from the outer edge of a horizontal section 16 of the first buckle 10 and the second buckle 11 to the central axis of the lime-soil pile 5 is greater than the radius of the lime-soil pile 5, vertical sections 15 of the first buckle 10 and the second buckle 11 are both matched with the groove 9 and are in sliding connection with the groove 9, the first buckle 10 and the second buckle 11 are in an inverted-L shape, springs 13 are arranged between the first buckle 10 and the bump 12 and between the second buckle 11 and the bump 12, the springs 13 are respectively fixedly connected with the first buckle 10, the second buckle 11 and the bump 12, and the assembly efficiency of the first buckle 10 and the second buckle 11 with the high-strength geogrid 6 can be improved; the length of the vertical section 15 of the first buckle 10 and the length of the vertical section 15 of the second buckle 11 are equal to the sum of the heights of the groove 9, the lime soil cushion layer 7 and the high-strength geogrid 6, the convex block 12 is arranged in the middle of the groove 9, and the first buckle 10 and the second buckle 11 are buckled on the high-strength geogrid 6, so that the firm strength of the high-strength geogrid is enhanced, and the stability of a roadbed is improved; the right side of lime-soil pile 5 is provided with drain pipe 8, has avoided ground fracture to take place, and the rainwater permeates the lower floor, influences the reinforcement intensity of lime-soil pile.

During construction, holes are formed in a substrate layer 14 by driving a steel sleeve, the substrate layer 14 is encrypted through extrusion, then, soil is filled into the holes in layers and tamped to form a soil pile 5, a soil cushion layer 7 is added above the soil pile 5, a groove 9 is formed in the molded soil pile 5, a first buckle 10 and a second buckle 11 are arranged on two sides of the inner wall of the groove 9, the first buckle 10 and the second buckle 11 are pulled, the first buckle 10 and the second buckle 11 slide in the groove 9, the distance from the outer edge of the horizontal section of the first buckle 10 and the second buckle 11 to the central axis of the soil pile 5 is smaller than the radius of the soil pile 5, the first buckle 10 and the second buckle 11 are loosened, the horizontal section 15 of the first buckle 10 and the second buckle 11 is buckled on a high-strength geogrid 6, after the foundation is tamped, concrete and a ground horizontal line 4 are laid on the same horizontal plane, set up embankment 3, subgrade bottom 2 and subgrade top layer 1 above ground horizontal line 4, the cross-sectional area successive layer of embankment 3, subgrade bottom 2 and subgrade top layer 1 reduces, forms certain slope, sets up drain pipe 8 on the horizontal plane of slope low side, avoids ponding on the road bed to cause compelling the evil to the firm stability of road bed.

The above-mentioned embodiments are merely preferred embodiments of the present invention, and not intended to limit the scope of the present invention, so that equivalent changes or modifications made by the structure, features and principles of the present invention should be included in the claims of the present invention.

Claims

1. A roadbed reinforcing structure adopting lime-soil piles comprises a ground horizontal line (4), wherein a embankment (3), a roadbed bottom layer (2) and a roadbed surface layer (1) are sequentially arranged above the ground horizontal line (4), and the roadbed reinforcing structure is characterized in that a high-strength geogrid (6) and a lime-soil cushion layer (7) are sequentially arranged below the ground horizontal line (4), a base layer (14) is arranged below the lime-soil cushion layer (7), the lime-soil piles (5) are arranged in the base layer (14), and grooves (9) are formed in the top ends of the lime-soil piles (5); the utility model discloses a geogrid, including recess (9), recess (9) inner wall, first buckle (10) and second buckle (11) are provided with in both sides of recess (9), are provided with lug (12) in the middle of recess (9), first buckle (10) and second buckle (11) lock joint are on geogrid (6) excel in, all are provided with spring (13) between first buckle (10) and lug (12) and second buckle (11) and lug (12).

2. A roadbed reinforcement structure using soil piles according to claim 1, wherein the springs (13) are fixedly connected with the first fastener (10), the second fastener (11) and the projection (12), respectively.

3. A roadbed reinforcement structure using soil piles according to claim 1, wherein the first fastener (10) and the second fastener (11) are of an inverted L shape.

4. A roadbed reinforcement structure with lime soil piles according to claim 3, wherein the vertical sections (15) of the first and second buckles (10, 11) are matched with the groove (9) and are slidably connected with the groove (9).

5. A roadbed reinforcement structure with lime soil piles according to claim 3, wherein the distance from the outer edge of the horizontal section (16) of the first buckle (10) and the second buckle (11) to the central axis of the lime soil pile (5) is larger than the radius of the lime soil pile (5).

6. A roadbed reinforcement structure with a lime soil pile according to claim 1, wherein the length of the vertical section (15) of the first fastener (10) and the length of the vertical section (15) of the second fastener (11) are equal to the sum of the height of the groove (9), the height of the lime soil cushion layer (7) and the height of the high-strength geogrid (6).

7. A roadbed reinforcement structure using a soil pile, according to claim 1, characterized in that a drain pipe (8) is provided to the right side of the soil pile (5).