1．施工机械

1. Construction machinery

必须配备齐全的施工机械和配件，做好开工前的保养、试机工作，并保证在施工期间一般不发生有碍施工进度和质量的故障。路面基层施工，采用集中厂拌、摊铺机摊铺、分层施工，要求各施工单位配备足够的拌和、运输、摊铺、压实机械。每层大压实厚度不大于20cm。水泥稳定碎石基层施工，按单幅分两层梯队摊铺作业，因而必须配备以下主要机械。

It is necessary to equip complete construction machinery and accessories, carry out maintenance and testing work before starting work, and ensure that there are generally no faults that affect the construction progress and quality during the construction period. The construction of the pavement base layer adopts centralized plant mixing, paver paving, and layered construction. Each construction unit is required to be equipped with sufficient mixing, transportation, paving, and compaction machinery. The compacted thickness of each layer shall not exceed 20cm. The construction of cement stabilized crushed stone base requires the following main machinery to be equipped, as the paving operation is divided into two layers according to a single width.

（1）拌和机应配置产量大于400T/H的拌和机，要保证其实际出料（生产量的80%）能力超过实际摊铺能力的10-15%。拌和机必须采用定型产品，并在多个工程中应用，且用户反应良好。为使混合料拌和均匀，拌缸要满足一定长度。少要有五个进料斗，料斗上口必须安装钢筋网盖，筛除超出粒径规格的集料及杂物。拌和机的用水应配有大容量的储水箱。

(1) The mixer should be equipped with a production capacity greater than 400T/H, ensuring that its actual discharge capacity (80% of the production capacity) exceeds 10-15% of the actual paving capacity. The mixer must use standardized products and be applied in multiple projects, with good user feedback. To ensure even mixing of the mixture, the mixing tank must meet a certain length. There must be at least five feeding hoppers, and steel mesh covers must be installed at the top of the hoppers to screen out aggregates and debris exceeding the particle size specifications. The water used in the mixer should be equipped with a large capacity water storage tank.

料斗、水箱、罐仓都要求装配高精度电子动态计量器，电子动态计量器应经有资质的计量部门进行计量标定后方可使用。

The hopper, water tank, and tank compartment all require the assembly of high-precision electronic dynamic meters. Electronic dynamic meters should be calibrated by qualified metrology departments before use.

（2）摊铺机应根据路面基层的宽度、厚度，选用合适的摊铺机械。基层施工应采用两台摊铺机梯队作业。要求两台摊铺机功能一致，好为同一机型，而且机型较新，功能较全，以保证路面基层厚度一致，完整无缝，平整度好。

(2) The paver should select appropriate paving machinery based on the width and thickness of the road base layer. Grassroots construction should use two pavers in a cascade operation. Two pavers are required to have the same function, preferably the same model, and the model should be newer with more comprehensive functions, to ensure consistent thickness, complete and seamless pavement base layer, and good smoothness.

（3）压路机少应配备12T左右轻型压路机1~2台，18-20T的压路机2~3台，振动压路机2~3台和胶轮压路机2台。压路机的吨位和台数必须与拌和机及摊铺机生产能力相匹配，使从加水拌和到碾压终了的时间不超过水泥初凝时间，保证施工正常进行。

(3) At least 1-2 lightweight rollers with a capacity of around 12T, 2-3 rollers with a capacity of 18-20T, 2-3 vibrating rollers, and 2 rubber wheeled rollers should be equipped with the road roller. The tonnage and number of rollers must match the production capacity of the mixer and paver, so that the time from water mixing to the end of compaction does not exceed the initial setting time of cement, ensuring the normal construction.

（4）自卸汽车数量应与拌和设备、摊铺设备、压路机相匹配。

(4) The number of dump trucks should match the mixing equipment, paving equipment, and road rollers.

（5）装载机

(5) Loader

（6）洒水车

(6) Sprinkler truck

（7）水泥钢制罐仓由拌和机生产能力决定其容量，罐仓内应配有水泥破拱器，以免水泥起拱停流。

(7) The capacity of the cement steel tank silo is determined by the production capacity of the mixer, and a cement arch breaker should be equipped inside the silo to prevent cement from arching and stopping flow.

以上机械数量少应满足每个工点、每日连续正常生产及工期要求。

The above number of machinery should at least meet the requirements of each construction site, daily continuous normal production, and project schedule.

2．质量检测仪器

2. Quality testing instruments

（1）水泥胶砂强度、水泥凝结时间、安定性检验仪器

(1) Testing instruments for cement mortar strength, cement setting time, and stability

（2）水泥剂量测定设备

(2) Cement dosage measurement equipment

（3）重型击实仪

(3) Heavy compaction instrument

（4）水泥稳定碎石抗压试件制备与抗压强度测定设备

(4) Preparation of compressive specimens for cement stabilized crushed stone and equipment for measuring compressive strength

（5）标准养护室

(5) Standard maintenance room

（6）基层密度测定设备

(6) Grassroots density measurement equipment

（7）标准筛（方孔）

(7) Standard sieve (square hole)

（8）土壤液、塑限联合测定仪

(8) Soil liquid and plastic limit joint tester

（9）压碎值仪

(9) Crushing value meter

（10）针片状测定仪器

(10) Needle shaped measuring instrument

（11）取芯机

(11) Corer

3．底基层的检查与验收

3. Inspection and acceptance of sub base layer

（1）底基层外形检查

(1) Subbase appearance inspection

底基层外形检查内容有高程、中线偏位、宽度、横坡度和平整度。

The inspection of the appearance of the base layer includes elevation, centerline deviation, width, cross slope, and flatness.

（2）底基层压实度检查、修补与验收

(2) Inspection, repair, and acceptance of subgrade compaction degree

底基层应进行压实度和表面松散检查，凡不符合要求的路段，应分别采用补充碾压、填换好的材料等。

The compaction degree and surface looseness of the base layer should be checked. For sections that do not meet the requirements, supplementary rolling and replacement materials should be used separately.

（3）底基层沉降检查

(3) Subbase settlement inspection

底基层的表面沉降速率应达到连续两个月小于5mm/月才可铺筑基层。

The surface settlement rate of the base layer should be less than 5mm/month for two consecutive months before laying the base layer.

（4）底基层的质量应符合《江苏省高速公路工程项目工程施工质量检验标准》的要求。

(4) The quality of the base layer should meet the requirements of the Construction Quality Inspection Standards for Jiangsu Province Expressway Engineering Projects.