CN210636251U

CN210636251U - Highway subgrade reinforced structure

Info

Publication number: CN210636251U
Application number: CN201921378099.3U
Authority: CN
Inventors: 秦国彪; 郑天罡; 潘兴东; 王永立; 杨昕; 柳培珍; 金宪辉
Original assignee: Yunnan Highway Science and Technology Research Institute
Current assignee: Yunnan Highway Science and Technology Research Institute
Priority date: 2019-08-23
Filing date: 2019-08-23
Publication date: 2020-05-29
Anticipated expiration: 2029-08-23

Abstract

A highway subgrade strengthening structure comprising: cement mortar basal layer, soft soil tamp layer, cement mortar filling layer, concrete pavement layer, strut barricade, crowded close sand stake, escape canal, wash port, stock structure. This retaining wall is strutted to highway subgrade has stock structure, and stock structure provides and struts the inside traction force of retaining wall, and soft soil tamp layer subgrade has crowded density sand pile, forms compound ground, sums up the structure make strut the retaining wall and the more firm combination of subgrade be in the same place, strengthened the holding capacity of subgrade.

Description

Highway subgrade reinforced structure

Technical Field

The utility model relates to a highway subgrade technical field, a highway subgrade reinforced structure.

Background

The construction of the highway plays an important role in promoting the economic development of China and is a traffic mode which is mainly developed by China all the time, but the China is wide in regions, different places have different soil conditions, and the highway subgrade is easy to settle in some regions with low soil density and high water content. At present all be to this problem take place to subside the back and change some aftermath remedial measures such as soil or slip casting, the utility model discloses a solve the road bed and subside the problem, designed a highway road bed reinforced structure, prevent suffering from in the bud.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a solve above-mentioned problem, designed a highway subgrade reinforced structure. The highway subgrade strengthening structure comprises a cement mortar base layer, a soft soil tamping layer, a cement mortar filling layer, a concrete pavement layer, a supporting retaining wall, a compacted sand pile, a drainage ditch, a drainage hole and an anchor rod structure.

The cement mortar base layer is formed by pouring cement mortar, the soft soil tamping layer is arranged above the cement mortar base layer, the compacted sand piles are arranged in the soft soil tamping layer, the cement mortar filling layer is arranged on the soft soil tamping layer, the cement mortar filling layer is formed by pouring cement mortar, and the concrete pavement layer is arranged on the cement mortar filling layer; there is the retaining wall of strutting in cement mortar stratum basale, soft soil tamp layer, cement mortar filling layer, concrete pavement layer both sides, and it is reinforced concrete structure to strut the retaining wall, and it has the escape canal to strut the retaining wall outer side slope, has the wash port in strutting the retaining wall, strut and have in the retaining wall stock structure, pass in proper order from strutting retaining wall outer side slope and strut retaining wall, soft soil tamp layer and all to the cement mortar stratum basale.

Furthermore, the compacted sand pile is formed by drilling a hole in a soft soil roadbed of the soft soil rammed layer, filling mixed sand-stone materials into the hole, and forming a compacted sand pile in a vibration or impact mode, wherein the compacted sand pile and the soft soil rammed layer form a composite foundation.

Furthermore, the anchor rod structure constitute by stock, bearing plate, slip casting body, the bearing plate pad is on strutting the barricade outer side slope, the stock passes the bearing plate and arranges in the slip casting body.

The utility model has the advantages that: this highway subgrade reinforced structure provides traction force through the stock structure, has strengthened the supporting effect of strutting the barricade, and crowded dense sand pile structure forms compound subgrade with soft soil tamp layer subgrade, has strengthened the bearing capacity of soft soil tamp layer subgrade, and foretell two kinds of structures make to strut barricade and the combination of subgrade fastening more as an organic whole, have effectively prevented that the subgrade from subsiding and warping, have saved the work load that the later stage was repaired on a large scale to the subgrade.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic cross-sectional view of a highway subgrade reinforcement structure;

FIG. 2 is a schematic cross-sectional view of a highway subgrade reinforcement structure;

FIG. 3 is a schematic view of an anchor rod structure of a highway subgrade reinforcement structure;

in the drawings, the structural components represented by the respective reference numerals are as follows:

1-cement mortar base layer, 2-soft soil tamping layer, 3-cement mortar filling layer, 4-concrete pavement layer, 5-supporting retaining wall, 6-compacted sand pile, 7-drainage ditch, 8-drainage hole, 9-anchor rod structure, 91-anchor rod, 92-bearing plate and 93-grouting body.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1 to 3, the highway subgrade strengthening structure comprises a cement mortar base layer 1, a soft soil tamping layer 2, a cement mortar filling layer 3, a concrete pavement layer 4, a retaining wall 5, compacted sand piles 6, a drainage ditch 7, drainage holes 8 and an anchor rod structure 9.

The retaining wall section of strutting be trapezoidal, increased lifting surface area, strut the retaining wall and be reinforced concrete structure, strut the retaining wall outer side slope and have the escape canal, do benefit to highway road surface drainage, strut the wash port in the retaining wall and do benefit to the road bed drainage on soft soil tamp layer, stock structure can give and strut inward traction force of retaining wall, the supporting effect of retaining wall is strutted in the reinforcing, the messenger struts the retaining wall and combines more the fastening with the road bed.

The compaction sand pile is formed by drilling a hole in a roadbed of a soft soil tamping layer, pouring mixed sand stone materials into the hole, forming the compaction sand pile in a vibration or impact mode, and forming a composite foundation by the compaction sand pile and the soft soil roadbed, wherein the bearing capacity of the soft soil roadbed is enhanced.

To sum up a highway subgrade reinforced structure, provide traction force through the stock structure, strengthened the supporting effect of strutting the barricade, crowded dense sand pile structure forms compound road bed with soft soil tamp layer road bed, has strengthened the bearing capacity of soft soil tamp layer road bed, foretell two kinds of structures make the barricade of strutting and the combination as an organic whole that the road bed fastens more, effectively prevented the road bed subside and warp, saved the work load that the later stage was repaired on a large scale to the road bed.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. The utility model provides a highway subgrade reinforced structure which characterized in that: the concrete-filled concrete composite retaining wall comprises a cement mortar base layer (1), a soft soil tamping layer (2), a cement mortar filling layer (3), a concrete pavement layer (4), a retaining wall (5), compacted sand piles (6), a drainage ditch (7), drainage holes (8) and an anchor rod structure (9);

the soft soil compaction layer (2) is arranged above the cement mortar base layer (1), the compaction sand pile (6) is arranged in the soft soil compaction layer, the cement mortar filling layer (3) is arranged on the soft soil compaction layer, and the concrete pavement layer (4) is arranged on the cement mortar filling layer; there is retaining wall (5) in cement mortar stratum basale, soft soil tamp layer, cement mortar filling layer, concrete pavement layer both sides, and it has escape canal (7) to strut the retaining wall outer side slope, has wash port (8) in the retaining wall to strut, strut the retaining wall in have stock structure (9), stock structure passes in proper order from the retaining wall outer side slope and struts retaining wall, soft soil tamp layer and up to the cement mortar stratum basale.

2. The roadbed reinforced structure of the highway according to claim 1, wherein the supporting retaining wall is a reinforced concrete structure; the soft soil tamping layer is provided with compacted sand piles.

3. A roadbed reinforcement structure of a highway according to claim 1, wherein the anchor rod structure comprises anchor rods (91), a bearing plate (92) and a grouting body (93); the bearing plate is cushioned on the outer side slope of the retaining wall, and the anchor rod passes through the bearing plate and is arranged in the grouting body.