CN204475107U - A kind of stone material structure of sidewalk of anti-freeze expansion - Google Patents

Abstract

The utility model discloses a kind of stone material structure of sidewalk of anti-freeze expansion, comprise set gradually from top to bottom stone material surface layer, cement sand bed I and basic unit; Be respectively equipped with kerbstone and kerb in both sides, sidewalk, be provided with receipts well in the outside of kerbstone, basic unit comprises lime fly ash rubble mixed layer and graded broken stone layer; Spilled water hole dug by the borehole wall that receipts well is adjacent with graded broken stone layer, and the end absolute altitude of spilled water hole is identical with the end absolute altitude of graded broken stone layer, and the top mark height of spilled water hole is high in the top mark of graded broken stone layer, spilled water hole is provided with well and combs; Waterproof integument is provided with in the outside on sidewalk, the bottom of waterproof integument performs below graded broken stone layer, the top of waterproof integument performs below cement sand bed I, and the facade structures of waterproof integument is the waterproof geotextiles, cement sand bed II and the antiseepage bitumen layer that set gradually from outside to inside.The utility model can make the freeze thawing disease of greenbelt irrigation water to sidewalk obtain radical cure solution.

Description

A kind of stone material structure of sidewalk of anti-freeze expansion

Technical field

The utility model relates to the stone material structure of sidewalk of a kind of stone material structure of sidewalk, particularly a kind of anti-freeze expansion.

Background technology

In recent years, along with the quickening day by day of Urbanization Construction speed, urban land scope increases day by day, the carrying out that the construction of town road is also like a raging fire.Along with environmental protection, the reaching its maturity of low-carbon (LC) theory, the requirement for Urban Road Landscapes construction also increases thereupon, and urban road coordinates the construction of landscape planting band, adds one beautiful green landscape to city.But thing followed problem, most of greenbelt is arranged on outside road sidewalk, and perennial irrigation water causes larger water enchroachment (invasion) evil to structure of sidewalk, is unfavorable for the durability of structure of sidewalk.Especially at northern area, before winter approached, a large amount of irrigation water accumulates in structure of sidewalk and can not get rid of in time, causes produce frost heave winter in structure of sidewalk, damages structure of sidewalk.The serious area of frost heave causes sidewalk surface layer to arch upward, and face brick breakage affects pedestrian's walking, can not continue to use.

The main forms of above-mentioned disease is: generally there is tilting phenomenon on the sidewalk that stone material is mated formation in winter.Tilt position and mainly occur in the granite face brick at close the kerbstone place inside sidewalk, tilt highly that 3 ~ 5 centimetres not etc.Alleviate to some extent to this disease during summer coming year, but sidewalk surface layer cannot return to original state.This disease mainly contains following several respects feature:

1) disease mainly occurs in winter, the January that especially temperature is minimum, and it is the most serious that phenomenon is split on the tilting of sidewalk face brick and top.

2) when temperature gos up gradually, defect phenomenon weakens gradually, has Some Disease region to restore to the original state to summer.

3) all have 5 to 15 meters of greenbelts do not waited outside the road sidewalk producing disease, find according to after relevant unit's investigation, freeze winter before season arrives, gardens department all carries out the pouring of large area to greenbelt.

By above-mentioned analysis, summing up causes of disease is Moisture Damage category, mainly contains following two reasons:

1) green area irrigation water frost heave

All there is the greenbelt of 5 to 15 meters wide outside sidewalk, road both sides, before freezing winter, all need thoroughly to irrigate greenbelt.After entering winter temperature rapid drawdown, the various moisture that structure of sidewalk lamination is deposited freeze volume increase, by deck destroy and by sidewalk face brick jack-up, become the main cause causing disease.After terminating temperature rise winter, frozen water content melts, and liquefy volume reduces, and the defect phenomenon of face brick distortion alleviates to some extent.Simultaneously owing to being planting technique soil outside kerb, effectively can unload part frost-heave force, therefore the granite face brick frost heave at kerb place tilts is not clearly.And outside kerbstone, be motorway structure, and can not timely and effective unloading soil pressure, so phenomenon is to close on kerbstone place comparatively obvious.

2) Water in Rainwater Drainage is except not smooth frost heave

Further investigation reveals that, the vertical comb of present situation receives sidewalk, well both sides face brick tilting phenomenon the most obviously, and more lighter away from receipts well defect phenomenon, the seam crossing simultaneously between present situation kerbstone and kerbstone all has cracking phenomena in various degree to produce.Therefore, deduction causes of disease is that surface gathered water (rainwater, snow-broth etc.) is collected to receipts well people around trade deck, fails to discharge in time, is infiltrated in structure of sidewalk by kerbstone seam, winter produces frost heaving, causes sidewalk to tilt near kerbstone place face brick.And gap, kerbstone back place is darker, and ponding is more, winter, the tilting of granite face brick was more serious.

Utility model content

The utility model provides a kind of stone material structure of sidewalk of anti-freeze expansion for solving in known technology the technical problem that exists.

The utility model for the technical scheme solving in known technology the technical problem that exists and take is: a kind of stone material structure of sidewalk of anti-freeze expansion, this structure of sidewalk comprise set gradually from top to bottom stone material surface layer, cement sand bed I and basic unit; Be respectively equipped with kerbstone and kerb in both sides, sidewalk, be provided with receipts well in the outside of described kerbstone; Described basic unit is the lime fly ash rubble mixed layer and graded broken stone layer that set gradually from top to bottom; Spilled water hole dug by the borehole wall that described receipts well is adjacent with described graded broken stone layer, the end absolute altitude of described spilled water hole is identical with the end absolute altitude of described graded broken stone layer, the top mark height of described spilled water hole is high in the top mark of described graded broken stone layer, described spilled water hole is provided with well and combs; Waterproof integument is provided with in the outside on sidewalk, the bottom of described waterproof integument performs below described graded broken stone layer, the top of described waterproof integument performs below described cement sand bed I, and the facade structures of described waterproof integument is the waterproof geotextiles, cement sand bed II and the antiseepage bitumen layer that set gradually from outside to inside.

The bottom of described waterproof integument is 50cm from the width that graded broken stone layer slope angle extends internally; The top width stretched in sidewalk of described waterproof integument is 30cm.

The advantage that the utility model has and good effect are: by adopting graded broken stone to form porous basic unit, at any time the moisture such as the irrigation water of infiltration structure of sidewalk and rainwater can be leached deck, the material property of available protecting deck fast; Around receipts Water Well room, spilled water hole is dug by adopting, and cast iron well comb is installed, sidewalk ponding can be made to enter receipts well by spilled water hole, and guarantor trade deck internal water accumulation can enter municipal storm sewer timely and effectively, thus can effectively prevent from occurring ponding in structure of sidewalk; Adopt waterproof geotextiles to wrap up sidewalk outboard structure, can prevent greenbelt irrigation water from flowing into structure of sidewalk and causing frost heaving failure.In sum, the utility model can make the freeze thawing disease of greenbelt irrigation water to sidewalk obtain radical cure solution.

Accompanying drawing explanation

Fig. 1 is elevation of the present utility model;

Fig. 2 is receipts well floor map of the present utility model.

In figure: 1, stone material surface layer; 2, cement sand bed I; 3, lime fly ash rubble mixed layer; 4, graded broken stone layer; 5, well is received; 6, kerbstone; 7, spilled water hole; 8, well is combed; 9, waterproof integument; 10, kerb; 11, municipal storm sewer.

Detailed description of the invention

For summary of the invention of the present utility model, Characteristic can be understood further, hereby exemplify following examples, and coordinate accompanying drawing to be described in detail as follows:

Refer to Fig. 1 and Fig. 2, a kind of stone material structure of sidewalk of anti-freeze expansion, this structure of sidewalk comprise set gradually from top to bottom stone material surface layer 1, cement sand bed I 2 and basic unit; Be respectively equipped with kerbstone 6 and kerb 10 in both sides, sidewalk, be provided with in the outside of described kerbstone 6 and receive well 5; Described basic unit is the lime fly ash rubble mixed layer 3 and graded broken stone layer 4 that set gradually from top to bottom; Spilled water hole 7 dug by the borehole wall that described receipts well 5 is adjacent with described graded broken stone layer 4, the end absolute altitude of described spilled water hole 7 is identical with the end absolute altitude of described graded broken stone layer 4, the top mark height of described spilled water hole 7 is high in the top mark of described graded broken stone layer 4, described spilled water hole 7 is provided with well and combs 8; Waterproof integument 9 is provided with in the outside on sidewalk, the bottom of described waterproof integument 9 performs below described graded broken stone layer 4, the top of described waterproof integument 9 performs below described cement sand bed I 2, and the facade structures of described waterproof integument 9 is the waterproof geotextiles, cement sand bed II and the antiseepage bitumen layer that set gradually from outside to inside.

In the present embodiment, the bottom of described waterproof integument 9 is 50cm from the width h1 that graded broken stone layer slope angle extends internally; The top width h2 stretched in sidewalk of described waterproof integument is 30cm.

In sum, the utility model, by analyzing the causes of disease of existing structure of sidewalk, for the basic reason that disease produces, proposes following three measures.

1) " thoroughly "---improve structure of sidewalk, basic unit is designed to water permeable layer.

By increasing graded broken stone layer 4, traditional structure of sidewalk form is improved to porous base course, after improving, structure of sidewalk is: 6 centimetres of granite building material face brick+2 cm of water cement mortar (1:3)+15 centimetres of lime fly ash rubbles (6:14:80)+20 centimetres of graded broken stones, structure total thickness is 43 centimetres.By sidewalk base course is performed into can be effectively permeable macadam, at any time moisture such as infiltrating the irrigation water of structure of sidewalk and rainwater can be leached deck, the material property of available protecting deck fast.

2) " row "---improve traditional receipts well structure, the moisture in structure of sidewalk can be got rid of in time

Improve traditional receipts well, around the well room of receiving well 5, dig spilled water hole 7, and cast iron well comb 8 is installed, receipts well can be entered by spilled water hole 7 by guarantor trade ponding.Stop the loss of structure of sidewalk layer medium stone simultaneously.Receipts well after improvement, guarantor trade deck internal water accumulation can enter municipal storm sewer 11 timely and effectively, thus effectively prevents the appearance of sidewalk internal water accumulation phenomenon.

3) " resistance "---the fluid-tight waterproof integument of sidewalk arranged outside

Frost heaving failure is caused in order to prevent greenbelt irrigation water outside sidewalk from flowing into structure of sidewalk, waterproof geotextiles is adopted to wrap up structure of sidewalk, the method that specifically performs is: making one deck waterproof geotextiles within the scope of the inside 50cm of graded broken stone slope angle, making 20cm graded broken stone and 15cm lime fly ash rubble on it.After having rolled, outside the road structure of sidewalk, edge smears 2cm cement mortar and antiseepage pitch, waterproof geotextiles then by reserved is wide to lime fly ash macadam top 30cm along structure of sidewalk edge anti-package, performs sidewalk bed course (cement mortar), making granite face brick afterwards again.

Although be described preferred embodiment of the present utility model by reference to the accompanying drawings above; but the utility model is not limited to above-mentioned detailed description of the invention; above-mentioned detailed description of the invention is only schematic; be not restrictive; those of ordinary skill in the art is under enlightenment of the present utility model; do not departing under the ambit that the utility model aim and claim protect, can also make a lot of form, these all belong within protection domain of the present utility model.

Claims (2)

1. a stone material structure of sidewalk for anti-freeze expansion, this structure of sidewalk comprise set gradually from top to bottom stone material surface layer, cement sand bed I and basic unit; Be respectively equipped with kerbstone and kerb in both sides, sidewalk, be provided with receipts well, it is characterized in that in the outside of described kerbstone, described basic unit is the lime fly ash rubble mixed layer and graded broken stone layer that set gradually from top to bottom; Spilled water hole dug by the borehole wall that described receipts well is adjacent with described graded broken stone layer, the end absolute altitude of described spilled water hole is identical with the end absolute altitude of described graded broken stone layer, the top mark height of described spilled water hole is high in the top mark of described graded broken stone layer, described spilled water hole is provided with well and combs;

Waterproof integument is provided with in the outside on sidewalk, the bottom of described waterproof integument performs below described graded broken stone layer, the top of described waterproof integument performs below described cement sand bed I, and the facade structures of described waterproof integument is the waterproof geotextiles, cement sand bed II and the antiseepage bitumen layer that set gradually from outside to inside.

2. the stone material structure of sidewalk of anti-freeze expansion according to claim 1, is characterized in that, the bottom of described waterproof integument is 50cm from the width that graded broken stone layer slope angle extends internally; The top width stretched in sidewalk of described waterproof integument is 30cm.