Sichuan Urban Rd And highway reconstruction supervision outline
1.6.2 The construction line is long and the site is narrow, and the construction organization and traffic conversion are difficult. The construction line of the project is long and the site is distributed in a linear form. The construction line is long and the site is narrow, which are all located on the existing traffic arteries. The traffic and construction interfere with each other greatly. There are many enterprises and government departments that need to coordinate, and the construction organization is difficult. During construction, a feasible progress network plan must be formulated, construction areas and sections should be reasonably divided, sufficient machinery, materials and human resources should be provided, and the construction should be organized according to the principle of "parallel construction in different areas and flow process in different sections", so as to ensure the realization of construction period goals. At the same time, implement intelligent and information-based management for the whole project, monitor the key construction points on the site, and grasp the situation of the construction site. Give full play to the experience of construction management internally, hold regular site meetings regularly, coordinate the relationship between professional construction teams, and organize construction reasonably and efficiently; Establish a coordination group to actively communicate with the Owner, the supervision unit, the design unit, the quality supervision station and various cooperation units to ensure that the channels for solving on-site problems are unblocked; Coordinate the relationship with the construction site, local and relevant government departments to reduce the interference of adverse factors on the construction. According to the traffic diversion experience of similar projects and the traffic status of urban sections, the Supervisor suggests that the following schemes can be adopted to effectively solve the traffic jam problems in the process of road reconstruction: 1) Compress the lanes, switch lanes respectively, and separate vehicles; 2) . Half mate construction, half mate two-way traffic, vehicle diversion; 3) Section crossing and half mate construction, half mate two-way traffic, vehicle diversion; 1.6.3 Various pipelines along the construction site are complex, and construction protection measures must be taken. The urban reconstruction scope of Phase I is located in the urban area of Mianyang, especially the newly built roads at each intersection. Because there are various overhead power supply lines and some underground drainage pipelines, power supply, communication cable trenches and other integrated pipe networks in the main urban area, and the location of some underground pipelines along the line is not clear, The cross distribution is complex. Therefore, before construction, the location, specification, direction and burial depth of various underground pipelines will be found out, and a protection plan will be prepared in advance to prevent power, water and gas outages along the line due to construction. 1.6.4 The construction site has high requirements for civilized construction and environmental protection. The project is 4.75km away from Mianyang City, and the noise, dust, sewage, etc. generated by various machinery operation during the construction along the line will affect the production and living of nearby shops, residences, office buildings. Civilized construction, environmental protection awareness and good site image are the key points of the project. 4.25km of the project is located in the suburb, close to the Xianhai Scenic Area, and the construction and domestic sewage discharge standards are high. Civilized construction has always been the focus of work control. On the one hand, we should take measures to minimize construction noise, control dust pollution, carefully conduct civilized construction enclosure, and discharge sewage after three-level sedimentation treatment. On the other hand, we should actively contact local residents to gain their understanding and formulate practical civilized construction measures. 1.6.5 Attention shall be paid to the extension and connection of various structures, especially the pavement elevation. When the bridge and culvert are reconstructed, extended or widened, the existing conditions of the old structures shall be investigated, and effective protective measures shall be taken to remove the auxiliary structures of the original structures, while ensuring the passage of the existing roads. During construction, the terrain, topography, hydrogeological conditions along the road and the floor elevation of permanent buildings shall be taken into consideration. During construction, the current elevation of the junction of roads and the formed elevation of the main road shall be checked first, and attention shall be paid to the horizontal and vertical connection at the intersection of planned roads or built roads. During road expansion, it is particularly necessary to deal with the effective connection between the new and old subgrade to ensure that they form a whole, and prevent the formation of cracks or sliding surfaces between the new and old subgrade, which will cause instability of the subgrade.
