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Company supervised project - Xiangshuihe River Bridge
Date Uploaded:2020/3/21

Xiangshuihe River Bridge project is part of Weihai Binhai tourist landscape highway (new auxiliary line Xiao Ge Jia to Lang Nuan Bridge section), located in Nanhai New District, Wendeng City, across the Xiangshui River in Binhai Road, connecting Changhai West Road and Jinlai Road. The total length of the project route is 1,626 meters, of which the total length of the bridge is 1,068 meters.The total construction period of the project is 36 months, and the supervision service period is 60 months,including the defect liability period which is 24 months.

 

Shandong Great Supervision and Consultation Co., Ltd. is responsible for the construction supervision task of the bridge part of the Xiangshui River Bridge Project. There is one super large Bridge, 1068 meters long including the east side approach bridge 360 meters, the main bridge 340 meters, the west side approach bridge 360 meters. Xiangshuihe river bridge main bridge is a (80 meters 180 meters 80 meters) double tower three span prestressed concrete box girder cable-stayed bridge, its east and west approach bridge is using (9×40 meters) prestressed concrete continuous box girder. This project adopts the standard design of two-way four-lane first class highway, the design speed is 80 km/h, the width of roadbed is 24.5 meters, the design vehicle load grade of the bridge and culvert is highway 1, the highest navigable water level is 3.500 meters, the peak acceleration of ground motion is 0.05 g, the design flood frequency is 1/300, the total investment of the project is 204,801,300 yuan.

 

The main bridge of Xiangshuihe Bridge is the key point of construction and control. The main bridge is a two-tower three-span prestressed concrete cable-stayed bridge with a width of 26.5 meters.The main beam adopts the equal height single box three chamber prestressed concrete box girder, the bridge tower adopts the single column type structure, the tower beam is consolidated, the pier tower is separated. The tower height above the bridge deck is 50 meters, the ratio of tower height to main span is 0.28; the pier height below the bridge deck is 13.34 meters. A hollow rectangular section with a circular angle is used for the column with a wall thickness of 1.2 m. The main pier is a rectangular solid section with a width of 15.6 in the transverse bridge direction and 4.5 -11 meters in the downstream bridge direction, and a circular arc shape. Bridge tower adopts group pile foundation and consists of 12φ2.0 meters bored cast-in-place piles. Cap is reinforced concrete rectangular construction, plane size 18.8×13.6 meters, thickness 4.0 meters.

 

The project is located at the entrance of Xiangshui River affected by tides and latent caverns, and the construction geography environment is complicated, which makes the construction difficult. To this end, the company ensures construction safety, in order to control the main objectives of construction quality, to all projects to achieve prior reminders, in-process control, after the inspection, so as to ensure the quality of the project in a controllable state. In order to achieve the project objectives: first, formulate detailed planning objectives, urge strict implementation in accordance with the planned objectives. Second, the supervision staff shift system is adopted to ensure the side station supervision in the whole process of site concrete engineering construction. Third, strengthen the work of prompting and guiding before the start of the sub-project, and do a good job of supervision in advance. Fourth, strengthen the control of raw material purchase, inspection and reserve. Fifth, strengthen the management of safety and civilization, in view of the current work, we focus on strengthening the approach bridge box girder, main bridge box girder, main bridge main tower and other high-altitude operation construction strict control, before the start of the sub-project, the construction units safety minister in the construction site to do a good safety assessment, signature approval before the next step of construction. The project safety supervision engineer and the technical management personnel of the project department carry out systematic safety investigation, and the hidden trouble found is carried out to the person. In view of the situation that the underground latent cavern of Xiangshuihe Bridge is relatively developed, the company reported to the owner in time, asked the geological prospecting unit to carry on the geological survey again, and invited the provincial bureau expert group to demonstrate the karst cave treatment plan, and supervised the implementation according to the plan.

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Address: No.2 Wenquan Mingzhu,Wenquan,Weihai,Shandong,China
Tel: +86 631-5376157; Contact Person: Ms Li Yan Yan; Fax: +86 631-5282157; Mobile: 86+18669346596; Email:1962888381@qq.com
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