CN210529400U

CN210529400U - Solidified building residue soil road structure

Info

Publication number: CN210529400U
Application number: CN201920846337.2U
Authority: CN
Inventors: 孔锐; 邵建惠; 陶俊; 姚吉; 陈发涛; 周峰; 赵建忠; 余启贵; 朱成凯; 虞建斌; 倪杰; 孙宝生
Original assignee: Ningbo Xinxin Environmental Protection Technology Co Ltd; Ningbo Urban Construction Design Institute Co ltd
Current assignee: Ningbo Bangyong Environmental Protection Technology Co., Ltd; NINGBO URBAN CONSTRUCTION DESIGN INSTITUTE CO.,LTD.
Priority date: 2019-06-05
Filing date: 2019-06-05
Publication date: 2020-05-15
Anticipated expiration: 2029-06-05

Abstract

The utility model discloses a solidification building dregs road structure, including pitch surface course, cement stabilized macadam basic unit, solidification building dregs subbase and the dregs bed course of dying, the dregs bed course of dying lay on the soil basic unit after clearing up, lay solidification building dregs road base on the dregs bed course of dying, the parcel has the road bed to add muscle geogrid in the solidification building dregs road base, pitch surface course, cement stabilized macadam basic unit and solidification building dregs subbase lay on solidification building dregs road base from top to bottom in proper order; the bottom of the solidified building muck roadbed layer is wrapped with an impermeable geomembrane, and a pavement reinforced metal grid is arranged between the solidified building muck roadbed layer and the solidified building muck roadbed layer; has the advantages that: novel structure, the bulk rigidity and the anti deformability of road solidification building dregs structural layer are strong, can alleviate the strength loss of solidification building dregs under the environment that soaks, have increased the absorption of building dregs, reduce building material quantity such as sand, stone, economic environmental protection.

Description

Solidified building residue soil road structure

Technical Field

The utility model relates to an urban road and highway construction field, in particular to solidification building dregs road structure.

Background

With the rapid promotion of various construction projects such as rail transit, municipal roads, real estate development and the like, the production amount of urban construction waste (including engineering waste soil, waste slurry, engineering waste, demolition waste, decoration waste and the like) is greatly increased year by year, and some cities lack large-scale construction waste soil treatment and disposal sites, so that the situations of serious site stacking, untimely transfer and the like often occur, and the urban construction progress is greatly influenced. Meanwhile, along with the increasing emphasis of the country on environmental protection, mountain-opening materials are limited, and the contradiction between supply and demand of road building fillers such as slag, broken stone, gravel and the like in some areas is prominent, so that a trigger is provided for popularization and application of solidified building muck.

In recent years, solidified soil has some trial applications in the field of road construction, the solidified soil is generally used as a road base layer and a subbase layer filler, the quality of a road structure can be generally guaranteed in areas with good geological conditions, but in soft soil areas, the phenomena of high construction compaction difficulty, easy shrinkage and dry cracking, low structural strength and the like of the solidified soil are often caused due to various reasons such as low foundation bearing capacity, large sedimentation amount, high underground water level, high foundation soil water content and the like, and once the uneven sedimentation of the foundation occurs, the road structure layer is often cracked due to insufficient shear strength and tensile strength, so that the service life and the normal use of the road are influenced.

Therefore, the solidified building muck road structure in the soft soil area is provided, the existing solidified soil road structure is further improved, and the purposes of reasonable structural design, simple construction process, good integrity, strong bearing capacity and ecological environmental protection are achieved.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that not enough to prior art provides a solidification building dregs road structure, and this road structure can be applicable to weak soil area ground bearing capacity low, subside inhomogeneous geological conditions, makes things convenient for machinery to roll the construction, and the bulk rigidity and the anti deformability of road solidification building dregs structural layer are strong, can alleviate the strength loss of solidification building dregs under the waterlogging caused by excessive rainfall environment, has increased the absorption of building dregs, reduces building material quantity such as sand, stone, economic environmental protection.

In order to achieve the above object, the present invention takes the following measures:

a solidified building muck road structure comprises an asphalt surface layer, a cement stabilized macadam base layer, a solidified building muck base layer and a muck cushion layer, wherein the muck cushion layer is laid on the cleaned soil base layer, the solidified building muck road base layer is laid on the muck cushion layer, a roadbed reinforced geogrid is wrapped in the solidified building muck road base layer, and the asphalt surface layer, the cement stabilized macadam base layer and the solidified building muck base layer are sequentially laid on the solidified building muck road base layer from top to bottom;

the bottom of the solidified building muck roadbed layer is wrapped with an impermeable geomembrane, and two sides of the impermeable geomembrane extend upwards to wrap two sides of the solidified building muck roadbed layer and the solidified building muck subbase layer;

a pavement reinforced metal grid is arranged between the solidified building muck subbase layer and the solidified building muck roadbed layer;

the both sides of solidification building dregs road structure all be provided with the roadside barricade.

The utility model has the advantages that: novel structure, this solidification building dregs road structure suitable for soft soil area is applicable to soft soil area foundation bearing capacity low, subsides inhomogeneous geological conditions, makes things convenient for machinery to roll the construction, and the bulk rigidity and the anti deformability of road solidification building dregs structural layer are strong, can alleviate the strength loss of solidification building dregs under the environment that soaks, have increased building dregs's absorption, reduce building material quantity such as sand, stone, economic environmental protection.

Drawings

Fig. 1 is a schematic view of the cross-sectional structure of the present invention.

Detailed Description

The utility model provides a solidification building dregs road structure, includes asphalt surface course 1, cement stabilized macadam basic unit 2, solidification building dregs sub-base 3 and the sediment bed course 5 of dying, sediment bed course 5 of dying lay on the soil base 10 after clearing up, the sediment bed course 5 upper berth of dying is equipped with solidification building dregs road base 4, the parcel has road bed muscle geogrid 6 in the solidification building dregs road base 4, asphalt surface course 1, cement stabilized macadam basic unit 2 and solidification building dregs sub-base 3 lay in proper order on solidification building dregs road base 4 from top to bottom.

The bottom of the solidified building muck roadbed layer 4 is wrapped with an impermeable geomembrane 7, and two sides of the impermeable geomembrane 7 extend upwards to wrap two sides of the solidified building muck roadbed layer 4 and the solidified building muck roadbed 3.

And a pavement reinforced metal grid 8 is arranged between the solidified building muck subbase layer 3 and the solidified building muck road base layer 4.

The both sides of solidification building dregs road structure all be provided with roadside barricade 9.

As shown in fig. 1, a 30-50cm pit slag cushion layer 5 is paved and rolled on a soil base layer 10 after surface cleaning in a soft soil area, a solidified building slag road base layer 4 composed of a soil stabilizer, cement, lime and building slag soil is paved and rolled on the surface of the pit slag cushion layer 5, and 1-2 road base reinforced geogrids 6 are arranged inside the solidified building slag road base layer 4. The arrangement of the slag backing layer 5 improves the bearing capacity of the foundation, and is beneficial to the mechanical compaction of the solidified building slag on the upper layer; the slag cushion layer 5 has good water permeability, is beneficial to removing underground water and separating underground capillary water, and relieves the strength loss of the solidified building slag soil in a water-soaking environment. The roadbed reinforcement earthwork grid 6 improves the overall strength and the deformation resistance of the roadbed structure, and makes up the defect that a solidified soil roadbed in a soft soil area is prone to uneven settlement and cracking.

The method comprises the steps of paving and rolling a solidified building muck subbase layer 3 consisting of a soil stabilizer, cement, lime, broken stones and building muck on the surface of a solidified building muck roadbed layer 4, paving and rolling a cement stabilized broken stone basic layer 2 consisting of cement and broken stones on the surface of the solidified building muck subbase layer 3, and paving and rolling an asphalt surface layer 1 on the surface of the cement stabilized broken stone basic layer 2. The road structure subbase and the roadbed adopt the solidified building residue soil to form a solidified building residue soil complex, so that the integral rigidity is greatly enhanced, the anti-deformation capability is improved, meanwhile, the consumption of the building residue soil is increased, the consumption of building materials such as sand and stone is reduced, and the road structure subbase and the roadbed are economical and environment-friendly.

The lateral surfaces of the solidified building muck underlayer 3 and the solidified building muck roadbed 4 and the bottom surface of the solidified building muck roadbed 4 are wrapped by the anti-seepage geomembrane 7. The impermeable geomembrane 7 can isolate underground water and relieve the strength loss of the solidified building muck in a water immersion environment.

The pavement reinforced metal grid 8 further improves the overall strength and the deformation resistance of the solidified building muck structure layer.

When the road side retaining wall 9 is convenient for the road roller to roll and construct, the road structure layer at the edge of the road side can be rolled in place, and the soil body is prevented from being extruded and loosened to two sides. Roadside retaining wall 9 is generally the same height as asphalt pavement 1 or slightly higher than asphalt pavement 1.

Claims

1. The utility model provides a solidification building dregs road structure, includes pitch surface course (1), cement stabilized macadam basic unit (2), solidification building dregs subbase (3) and the sediment bed course (5) of delaying, its characterized in that: the slag backing layer (5) of dying lay on clear table back soil basic unit (10), the slag backing layer (5) of dying is laid and is equipped with solidification building slag soil road bed layer (4) on, the parcel has road bed muscle geogrid (6) in solidification building slag soil road bed layer (4), asphalt surface layer (1), cement stabilized macadam basic unit (2) and solidification building slag soil sub-base (3) lay in proper order on solidification building slag soil road bed layer (4) from top to bottom.

2. The solidified building spoil road structure of claim 1, wherein: the bottom of the solidified building muck roadbed layer (4) is wrapped with an anti-seepage geomembrane (7), and two sides of the anti-seepage geomembrane (7) extend upwards to wrap two sides of the solidified building muck roadbed layer (4) and the solidified building muck subbase layer (3).

3. A cured construction earth road structure according to claim 1 or 2, characterized in that: and a pavement reinforced metal grid (8) is arranged between the solidified building muck subbase layer (3) and the solidified building muck road base layer (4).

4. A cured construction earth road structure according to claim 3, wherein: and roadside retaining walls (9) are arranged on two sides of the solidified building muck road structure.