A foundation structure for soft soil

Abstract

The utility model discloses a foundation structure for soft base soil, specifically relates to the technical field of road construction, including: a hollow slow-setting soil pile arranged in the foundation, which is filled with a mixed filler layer; a prefabricated permeable brick arranged on the upper surface of the foundation and assembled at the end of the hollow slow-setting soil pile; a graded crushed stone layer laid in the gaps between the prefabricated permeable bricks and a plurality of prefabricated permeable bricks; a fine material filling layer laid on the graded crushed stone layer; an asphalt pavement base layer laid on the fine material filling layer; a glass fiber hanging net laid on the asphalt pavement base layer; and a modified asphalt pavement laid on the glass fiber hanging net. The utility model can greatly avoid the increase of soil moisture content, making the soft soil medium more unstable.

Description

Technical Field

[0001] The utility model relates to the technical field of road construction, in particular to a foundation structure of soft base geology. Background Art

[0002] When setting up foundations in soft soil and poor geological conditions, there are common hazards such as foundation subsidence and tilting. Especially in the rainy season, the water content of the soil will increase, making the soft soil medium more unstable, so the foundation needs to be reinforced to improve its stability. Utility Model Content

[0003] The purpose of the utility model is to provide a foundation structure for soft base geology, which is used to solve the above problems.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A foundation structure for soft soil, comprising:

[0006] A hollow slow-setting soil pile column arranged in the foundation, which is filled with a mixed filler layer;

[0007] Prefabricated permeable bricks arranged on the upper surface of the foundation and assembled at the ends of the hollow slow-setting soil piles;

[0008] A graded crushed stone layer laid in the prefabricated permeable bricks and in the gaps between a plurality of prefabricated permeable bricks;

[0009] a fine material filling layer laid on the graded crushed stone layer;

[0010] an asphalt pavement base layer laid on the fine material filling layer;

[0011] A glass fiber hanging mesh laid on the asphalt pavement base;

[0012] Modified asphalt pavement laid on fiberglass hanging net.

[0013] Preferably, the hollow slow-setting soil pile column is divided into a pile column body and a pier column arranged at the end of the pile column body according to the structure, and the circumferential radius of the pier column is larger than the circumferential radius of the pile column body.

[0014] Preferably, the mixed filler layer is formed by mixing ceramsite and fine sand in a ratio of 1:3.

[0015] Preferably, the specification of the fine sand is 0.25 mm to 0.125 mm.

[0016] Preferably, the prefabricated permeable bricks are rectangular bricks, with a length and width three times the radius of the pile column and a height of twenty centimeters.

[0017] Preferably, it also includes a steel wire mesh laid between the gaps between a plurality of prefabricated permeable bricks and located at half the height of the prefabricated permeable bricks.

[0018] Preferably, the distance between the upper surface of the graded crushed stone layer and the upper surface of the prefabricated permeable bricks is six centimeters to eight centimeters.

[0019] Preferably, the fine material filling layer is blast furnace ash and has a thickness of three to five centimeters.

[0020] In the above technical scheme, the utility model provides a foundation structure for soft base geology, which has the following beneficial effects: a plurality of hollow slow-setting soil piles are cast to form support for the road surface, and a mixed filler layer and prefabricated permeable bricks are used to form a water storage structure, thereby reducing the water content of the soil around the hollow slow-setting soil piles, which can greatly avoid the increase of soil water content and the occurrence of more unstable soft soil media. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0022] Figure 1 A schematic diagram of the implementation structure provided for an embodiment of the utility model.

[0023] Description of reference numerals:

[0024] 1. Hollow slow-setting soil pile; 11. Pile body; 12. Pier; 2. Mixed filling layer; 3. Prefabricated permeable bricks; 4. Graded crushed stone layer; 5. Fine material filling layer; 6. Asphalt pavement base; 7. Glass fiber hanging net; 8. Modified asphalt pavement; 9. Steel wire mesh. DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0026] like Figure 1 As shown, a foundation structure for soft base soil includes the following construction steps:

[0027] S01. A plurality of foundation pits are pre-drilled and arranged at intervals according to the width and length of the road surface. Then, hollow slow-setting soil piles 1 are arranged in the foundation pits, wherein: the hollow slow-setting soil piles 1 are divided into a pile body 11 and a pier 12 arranged at the end of the pile body 11 according to the structure, and the circumferential radius of the pier 12 is greater than the circumferential radius of the pile body 11.

[0028] S02, after solidification, the mold is removed and a mixed filler layer 2 is filled into the hollow slow-setting soil pile column 1, wherein the mixed filler layer 2 is a mixture of ceramsite and fine sand in a ratio of 1:3. The specification of the fine sand is 0.25 mm to 0.125 mm.

[0029] S03, prefabricated permeable bricks 3 are laid on the ground surface and assembled on the ends of the hollow slow-setting soil piles 1 by expansion screws, wherein: the prefabricated permeable bricks 3 are rectangular bricks, and the length and width are three times the radius of the pile body 11, and the height is 20 cm;

[0030] S04. A graded crushed stone layer 4 is laid in the gaps between the prefabricated permeable bricks 3 and multiple prefabricated permeable bricks 3, and the distance between the upper surface of the graded crushed stone layer 4 and the upper surface of the prefabricated permeable bricks 3 is six centimeters to eight centimeters.

[0031] S05, a fine material filling layer 5 laid on the graded crushed stone layer 4, wherein the fine material filling layer 5 is blast furnace ash and has a thickness of three to five centimeters;

[0032] S06, laying the asphalt pavement base layer 6 on the fine material filling layer 5;

[0033] S07, laying a glass fiber hanging mesh 7 on the asphalt pavement base 6;

[0034] S08, laying the modified asphalt pavement 8 on the glass fiber hanging mesh 7.

[0035] In the above technology, multiple hollow slow-setting soil piles 1 are cast to form support for the road surface, and a mixed filler layer 2 and prefabricated permeable bricks 3 are used to form a water storage structure, thereby reducing the water content of the soil around the hollow slow-setting soil piles 1, which can greatly avoid the increase of soil water content and the occurrence of more unstable soft soil media.

[0036] It should be noted that a steel wire mesh 9 is laid between the gaps between the prefabricated permeable bricks 3 and is located at half the height of the prefabricated permeable bricks 3 .

[0037] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A foundation structure for soft base soil, characterized in that: include: A hollow slow-setting soil pile (1) arranged in the foundation, wherein the pile is filled with a mixed filler layer (2); Prefabricated permeable bricks (3) arranged on the upper surface of the foundation and assembled at the ends of the hollow slow-setting soil piles (1); A graded crushed stone layer (4) laid on the prefabricated permeable bricks (3) and in the gaps between a plurality of prefabricated permeable bricks (3); A fine material filling layer (5) laid on the graded crushed stone layer (4); an asphalt pavement base layer (6) laid on the fine material filling layer (5); A glass fiber hanging mesh (7) laid on the asphalt pavement base layer (6); A modified asphalt pavement (8) laid on a glass fiber hanging net (7).

2. A foundation structure for soft base soil according to claim 1, characterized in that: The hollow slow-setting soil pile (1) is divided into a pile body (11) and a pier (12) arranged at the end of the pile body (11) according to the structure, and the circumferential radius of the pier (12) is greater than the circumferential radius of the pile body (11).

3. The foundation structure of soft base geology according to claim 1, characterized in that: The mixed filler layer (2) is formed by mixing ceramsite and fine sand in a ratio of 1:

3.

4. A foundation structure for soft base soil according to claim 3, characterized in that: The specification of the fine sand is 0.25 mm to 0.125 mm.

5. The foundation structure of soft base geology according to claim 1, characterized in that: The prefabricated permeable brick (3) is a rectangular brick, and the length and width are three times the radius of the pile column (11), and the height is twenty centimeters.

6. The foundation structure of soft base geology according to claim 1, characterized in that: It also includes a steel wire mesh (9) laid between the gaps between the plurality of prefabricated permeable bricks (3) and located at half the height of the prefabricated permeable bricks (3).

7. The foundation structure of soft base geology according to claim 1, characterized in that: The distance between the upper surface of the graded crushed stone layer (4) and the upper surface of the prefabricated permeable brick (3) is six centimeters to eight centimeters.

8. The foundation structure of soft base geology according to claim 1, characterized in that: The fine material filling layer (5) is blast furnace ash and has a thickness of three to five centimeters.

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