路緣石施工工藝標準Technology standard

　　Construction technology standard for curbstones

　　路緣石【curb】指的是設在路面邊緣的界石，簡稱緣石。它是作為設置在路面邊緣與其它構造帶分界的條石,起到保障行人，車輛交通安全和保證路面邊緣齊整的作用，同時起到利于排除路面水的作用。

　　A curbstone refers to a boundary stone set at the edge of the road surface, abbreviated as a curbstone. It is a stone strip set at the edge of the road surface to separate from other structural zones, which plays a role in ensuring pedestrian and vehicle traffic safety, ensuring the smoothness of the road surface edge, and also helps to eliminate road water.

　　路緣石主要有:立緣石(側石)，平緣石(平石)、專用路緣石(包括彎道路緣石、隔離帶路緣石、反光路緣石、減速路緣石)等。路緣石宜用石材或混凝土制作。

　　The main types of curbstones include standing curbstones (side curbstones), flat curbstones (flat curbstones), and specialized curbstones (including curved curbstones, median curbstones, reflective curbstones, and deceleration curbstones). The curbstone should be made of stone or concrete.

　　路緣石工法特點

　　Characteristics of curbstone construction method

　　本工法通過優化設計路緣石的順直度，穩固度，混凝土的抗壓強度，加快了施工進度，能夠創造較高的經濟效益。

　　This construction method accelerates the construction progress and creates high economic benefits by optimizing the straightness, stability, and compressive strength of the designed curbstones and concrete.

　　適用范圍

　　Scope of application

　　Scope of application

　　Scope of application

　　本工法適用于快速路、一級公路、城市道路等工程的施工，也可用于鄉鎮及小區道路的施工。

　　This construction method is applicable to the construction of expressways, first-class highway, urban roads and other projects, as well as the construction of township and community roads.

　　工藝原理

　　Process principle

　　Process principle

　　Process principle

　　通過確定合理的施工工藝和順序，保證工程質量、加快施工速度。

　　By determining reasonable construction techniques and sequences, ensure project quality and accelerate construction speed.

　　01

　　01

　　施工工藝流程及操作要點

　　Construction process and operation points

　　施工工藝流程

　　Construction process flow

　　1、工藝流程

　　1. Process flow

　　路緣石預制→運輸→施工放樣→路緣石墊層澆筑→路緣石安裝→靠背澆注→養生??

　　Prefabrication of curbstone → transportation → construction layout → pouring of curbstone cushion layer → installation of curbstone → pouring of backrest → curing??

　　2、混凝土路緣石質量要求：

　　2. Quality requirements for concrete curbstones:

　　采用C30混凝土的立沿石，其成型的表面應平整、棱角整齊、無裂紋、色澤一致。其外形尺寸應符合設計要求，允許偏差應符合下表的規定。

　　The vertical edge stone made of C30 concrete should have a smooth surface, neat edges, no cracks, and consistent color. Its external dimensions should meet the design requirements, and the allowable deviation should comply with the provisions in the table below.

　　▲混凝土路緣石外觀質量允許偏差表

　　▲ Allowable Deviation Table for Appearance Quality of Concrete Curbs

　　操作要點

　　Operation points

　　1、測量放線：

　　1. Measurement and laying out:

　　核對道路中心線無誤后，依次丈量出路面邊界，進行路邊線放樣，定出邊樁以控制方向和高程。直線段的邊樁與邊樁間可拉施工線作準繩，樁距為10m；曲線彎道及交叉路段均按設計半徑，加密邊樁，樁距為5m，路口樁距為1～5m，保證曲線圓弧尺寸。宜用全站儀、經緯儀、水準儀測設。

　　After verifying the accuracy of the road centerline, measure the boundary of the road surface in sequence, set out the roadside lines, and determine the boundary stakes to control the direction and elevation. The construction line can be used as a guide between the edge piles of the straight section, with a distance of 10m between the piles; Curves, bends, and intersections are all reinforced with edge stakes according to the design radius, with a distance of 5m between stakes. The distance between stakes at intersections is 1-5m to ensure the size of the curve arc. It is advisable to use a total station, theodolite, and level to measure and set up.

　　2、路緣石安裝：

　　2. Installation of curbstones:

　　釘樁掛線后，沿基礎一側把路緣石依次排好。安裝路緣石之前，先支模澆筑100mm厚C15混凝土墊層，再拌制1：2砂漿鋪底，砂漿厚30mm，按放線位置安裝路緣石。

　　After nailing the stakes and hanging the lines, arrange the curbstones in sequence along one side of the foundation. Before installing the curbstone, first support the formwork and pour a 100mm thick C15 concrete cushion layer, then mix a 1:2 mortar base with a thickness of 30mm, and install the curbstone according to the layout position.

　　事先計算好每段路口路緣石塊數，砌筑時路段短時由一側路口切點安砌到另一側路口切點；路段長時由中間向兩端鋪砌與路口異型緣石順接。

　　Calculate the number of stones on the edge of each intersection in advance, and during masonry, the road section will be temporarily laid from the intersection point on one side to the intersection point on the other side; For a long period of time, the road section is paved from the middle to both ends and connected smoothly with the irregular edge stones at the intersection.

　　路緣石調整塊應作機械切割成型或以現澆同強度等級混凝土制作，不得用磚砌抹面方式做路緣石調整塊，雨水口處的路緣石應與雨水口配合施工,相鄰路緣石縫隙用8mm厚鐵板或塑料板控制，相鄰路緣石的縫隙應均勻一致。

　　The whole piece of curbstone adjustment should be mechanically cut or made of cast-in-place concrete of the same strength grade. It is not allowed to use brick masonry and plastering to make the whole piece of curbstone adjustment. The curbstone at the rainwater inlet should be constructed in coordination with the rainwater outlet. The gap between adjacent curbstones should be controlled by 8mm thick iron or plastic plates, and the gap between adjacent curbstones should be uniform and consistent.

　　路緣石安裝后，必須再掛線，調整路緣石至順直、圓滑、平整，對路緣石進行平面及高程檢測，當平面及高程超過標準時應進行調整。無障礙路緣石應按設計要求安裝。路緣石安裝合格后及時采用C15混凝土進行后背澆筑和水泥砂漿勾縫，以保證路緣石穩定。采用濕法養生3天，其間應防止碰撞。

　　After the installation of the curbstone, it is necessary to hang a line and adjust the curbstone to be straight, smooth, and flat. The curbstone should be checked for its level and elevation. When the level and elevation exceed the standard, adjustments should be made. Barrier free curbstones should be installed according to design requirements. After the installation of the curbstone is qualified, C15 concrete should be used for back pouring and cement mortar jointing in a timely manner to ensure the stability of the curbstone. Adopt wet health preservation for 3 days, during which collision should be prevented.

　　3、路緣石安裝的基本要求：

　　3. Basic requirements for installing curbstones:

　　路緣石穩固，并應做到線條平直、曲線圓順，表面潔凈不被污染，路緣石的勾縫應嚴密。路緣石混凝土抗壓強度符合設計要求。??

　　The curbstone should be stable and have straight lines and smooth curves, with a clean and uncontaminated surface. The jointing of the curbstone should be tight. The compressive strength of curb concrete meets the design requirements.??

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