CN203625740U

CN203625740U - Temporary service road in desert

Info

Publication number: CN203625740U
Application number: CN201320730727.6U
Authority: CN
Inventors: 徐存东; 张先起; 张宏洋; 王燕; 韩立炜; 贾广钰; 刘慧卿
Original assignee: North China University of Water Resources and Electric Power
Current assignee: North China University of Water Resources and Electric Power
Priority date: 2013-11-19
Filing date: 2013-11-19
Publication date: 2014-06-04
Anticipated expiration: 2023-11-19

Abstract

The utility model discloses a temporary service road in desert. According to the temporary service road in the desert, a roadbed is a thick macadam layer; the middle layer is a straw layer; the surface layer is a mixed layer; rectangular caulking grooves are formed downwards in the both sides of the roadbed respectively, and sand-straw mixture layers are arranged in the rectangular caulking grooves in a paving manner; side slopes of the rectangular caulking grooves are paved with straw lattices to form revetments. The temporary service road in the desert is wide in material range, low in cost and high in construction speed; the caulking grooves are formed in the both sides of the roadbed and filled with sand-straw mixtures, a constraining force is provided for a pavement, and thus the support strength of the pavement is enhanced and the service life of the pavement is prolonged; the side slope surfaces of the caulking grooves adopt the straw lattice revetments, and the functions of dyke strengthening and slumping prevention are realized, and thus the practical life of the pavement is prolonged; the three-layer structures are combined, and have the characteristics of being firm, economic, durable and the like; macadam, straws and mixed sand are arranged in a paving manner on the basis of the original road again, so as to form a new firm service road.

Description

The interim sidewalk in desert

Technical field

The utility model belongs to the road construction field of Desert Control, is specifically related to a kind of building method of temporary construction sidewalk of surface layer of desert.

Background technology

Conquering desert, march the important content that desert is development of the West Regions, is also that 21 century people thirst for one of problem solving.Along with the steady enforcement of strategy to develop western regions, large quantities of engineerings will be built in desert area, need to be by heavy mechanical equipment.And desert is because of its particularity, need to builds specially builder's road and use for main equipment.But, insecure due to ground in desert, be difficult to lay highway according to common construction technology, build road difficulty in desert very large, need to there be firm roadbed and strong non-deformability, on the other hand, because desert dust storm is large, sand dune mobility can affect road gradually, even destroys the normal use of road.Due to desert road, generally to have the life-span short, and just causing can not the too high construction cost of disposable input in desert.So far also do not have a kind of pioneer road structure of normalization to occur.

Utility model content

The purpose of this utility model is to provide a kind of building method of temporary construction sidewalk of surface layer of desert, can be convenient, fast, economical at surface layer of desert building operations sidewalk, make construction machinery can enter smoothly building site, accelerate engineering construction progress.

For realizing above-mentioned utility model object, the technical scheme that the utility model adopts is as follows: the interim sidewalk in a kind of desert, comprise roadbed, intermediate layer and surface layer, and wherein, roadbed is that thickness is the macadam of 8～12cm, ballast grain sizes scope is 2～5cm; Intermediate layer is that thickness is the straw layer of 3～5cm; The natural river sand that surface layer is 0.5～3cm by particle diameter forms the mixing layer of sand that thickness is 9～11cm.Be respectively arranged with the caulking groove of rectangle in roadbed both sides downwards, in rectangle caulking groove, lay sand grass mixture layer; In the side slope of rectangle caulking groove, lay straw sash and form bank protection.

Further, roadbed is that thickness is the macadam of 10cm, and ballast grain sizes scope is 2～5cm; Intermediate layer is that thickness is the straw layer of 5cm; The natural river sand that surface layer is 0.5～3cm by particle diameter forms the mixed layer that thickness is 10cm.In the side slope of rectangle caulking groove, lay 40cm × 40cm straw sash and form bank protection.

The utlity model has following advantage: pavement material of the present utility model consists of rubble, straw and mixed sand, draw materials easily, with low cost, speed of application is fast.Caulking groove heap sand grass mixture are established in road foundation both sides, and road pavement provides restraint forces, improves road surface support strength and application life.The side slope face of caulking groove adopts straw grid bank protection, has the effect of dyke strengthening slumping, improves road surface physical life.

The utility model is easily constructed, and in the time of smooth Shamian Island, can design caulking groove according to desert terrain, can in desert, not be subject to landform restriction ground laying construction sidewalk fast.The rubble of bottom greater particle size provides supporting layer, straw layer is conducive to rubble and mixed sand keeps together and is difficult for loose destruction, mixed sand is also conducive to road surface leveling when providing upper strata to support, three layer construction combine have solid, economical and durable etc. a little.

The utility model can also, because of after long-term dust storm erosion damage road, again be laid rubble, straw and mixed sand on original road basis, although original road is destroyed, but still can be the same material road of the new laying solid new sidewalk of formation that combines.

Accompanying drawing explanation

Fig. 1 is the structural representation of the construction method of the interim sidewalk in the utility model desert;

Fig. 2 is that the A of Fig. 1 is to structural representation.

In figure, number 1 for desert, 2 is macadam, and 3 is straw layer, and 4 for mixing layer of sand, and 5 is rectangle caulking groove, and 6 is sand grass mixed layer, and 7 is side slope, and 8 is straw grid.

The specific embodiment

Embodiment 1: the interim sidewalk in a kind of desert, referring to Fig. 1 and Fig. 2, comprises roadbed, intermediate layer and surface layer.Wherein, roadbed is that thickness is the macadam 2 of 10cm, and ballast grain sizes scope is 2～5cm; Intermediate layer is that thickness is the straw layer 3 of 5cm; The natural river sand that surface layer is 0.5～3cm by particle diameter forms the mixing layer of sand 4 that thickness is 10cm.Be respectively arranged with rectangle caulking groove 5 downwards in roadbed both sides, the interior laying sand grains of rectangle caulking groove 5 and straw form sand grass mixed layer 6, and sand grains and the configuration of straw arbitrary proportion all can; In the side slope 7 of rectangle caulking groove 5, lay 40cm × 40cm straw sash 8 and form bank protection.

The construction method of the present embodiment is as follows:

First,, in the sidewalk position of pre-construction, smooth Shamian Island, keeps Shamian Island level; Shamian Island after smooth is laid macadam formation roadbed, and macadam thickness is 10cm, and ballast grain sizes scope is 2～5cm.

Secondly, lay straw layer at macadam upside, straw layer thickness is 5cm; Lay and mix layer of sand at straw layer upside again, mixed sand layer thickness is 10cm.The natural river sand that described mixing layer of sand is all 0.5～3cm by particle diameter forms.

Then, at roadbed both sides excavation rectangle caulking groove, the wide 30cm of bottom land, dark 50cm; In rectangle caulking groove, lay sand grains and straw and form sand grass mixture; And in the side slope of rectangle caulking groove, lay 40cm × 40cm straw sash and form bank protection.

In addition, can also be in the situation that interim sidewalk cannot normally use after being badly damaged for the first time, can be using original pioneer road as roadbed, adopt same method again to implement interim sidewalk.Thereby cost-saving and reduce construction volume, avoid must be again constructing roadbed in traditional road construction drawback.

Claims

1. the interim sidewalk in desert, comprises roadbed, intermediate layer and surface layer, it is characterized in that, roadbed is that thickness is the macadam of 8～12cm; Intermediate layer is that thickness is the straw layer of 3～5cm; Surface layer is that thickness is the mixing layer of sand of 9～11cm; Be respectively arranged with the caulking groove of rectangle in roadbed both sides downwards, in rectangle caulking groove, lay sand grass mixture layer; In the side slope of rectangle caulking groove, lay straw sash and form bank protection.

2. the interim sidewalk in desert according to claim 2, is characterized in that, roadbed is that thickness is the macadam of 10cm, and ballast grain sizes scope is 2～5cm.

3. the interim sidewalk in desert according to claim 2, is characterized in that, intermediate layer is that thickness is the straw layer of 5cm.

4. the interim sidewalk in desert according to claim 6, is characterized in that, the natural river sand that surface layer is 0.5～3cm by particle diameter forms the mixed layer that thickness is 10cm.

5. the interim sidewalk in desert according to claim 6, is characterized in that, lays 40cm × 40cm straw sash and form bank protection in the side slope of rectangle caulking groove.