on promoting the combination of permanent and temporary work in the construction process.
The scheme is specially prepared to strictly plan the permanent and temporary combined facilities of the project.
According to the field investigation, the design line of this bid section mainly crosses an unnamed River, farmland and mountainous area from banashan to Mazhuang , mountain stream and other sections.
order record 1、 Preparation basis 1 II.
Concise manual for standardization of project site management of China Railway fourth Bureau Group No.
2、 Preparation principle 1.
When connecting with the existing road, obvious signs shall be set up at 200m from the left and right of the main line, and special personnel shall be assigned to be responsible for traffic command and wear reflective vests to ensure road smoothness and traffic safety.
(Trial draft Volume II) Highway Engineering); 5.
The starting point of the pipeline section is close to provincial highway S206.
After the construction of the project is completed, the vertical access road will be handed over to the local government for use as a permanent rural road.
11 K45 + 420 ~ K49 + 000340064.50.2mc20 to access road No.
3、 Objective Baise has a long history, beautiful mountains and rivers, and colorful cultural landscape and ethnic customs.
According to the construction needs, the power load of our bid section needs to reach 5200kva.
5.2 Combination of temporary power consumption and permanent power consumption 5.2.1 overview of temporary power consumption at present, the power load of the existing substation in our bid section does not meet the construction production, so the capacitance needs to be increased.
Therefore, according to the actual situation of the project, it is decided to design the longitudinal access road from the design starting point to the entrance section of bonashan tunnel to widen along the original village road, and from the entrance of bonashan tunnel to Keli tunnel The section access road is newly built.
In order to implement the notice on typical demonstration construction of Green Highway Construction issued by the general office of the Ministry of transport and respond to the demand of Guangxi lebai Expressway Co., Ltd.
4、 Project overview this bid section (№ 5 Bid Section) is located in Baise City, Guangxi.
The project contents include: Subgrade Earthwork, bridges, channels, culverts, tunnels, protective drainage, housing construction, greening and other projects within the bid section; It does not include the prefabrication of asphalt concrete surface course and expansion joint of bridge engineering, asphalt concrete surface course of tunnel pavement engineering, subgrade side ditch abutment cap and cover plate, and tunnel cable trench cover plate.
access road No.
Main quantities: 2.2685 million M subgrade excavation ³、 Subgrade filling: 3286100 M ³； Protection and drainage: 8.74km (mortar rubble: 31700m) ³、 Concrete 47500 M ³ 、 Anchor rod 12063m; concrete pavement 10700m2 ）； There are 9 large and medium-sized bridges (308 bridge pile foundations, 242 piers and abutments, and 606 precast and erected prestressed concrete simply supported T-beams, including 30m191 and 20m415); there are 3 separate tunnels with a length of 5254m (the longest tunnel is 1922.5m) and 7406m2 houses; 14 culverts and 2 channels; one service area (Leye service area) The project belongs to the mountainous and hilly area in Northwest Guangxi, with complex landform and inconvenient transportation along the line.
summary 10 Yonglin combination special construction scheme of No.5 contract section of Leye Baise Expressway I.
Construction investigation report of section tj-5 of Leye Baise expressway; 4.
24 in Leye service section K49 + 560 ~ K53 + 500870064.50.2m thick clay bound macadam 180064.50.2m thick clay bound macadam 180064.50.2m thick clay bound macadam 180064.50.2m thick clay bound macadam 180064.50.2m thick clay bound macadam 180064.50.2m thick clay bound macadam 180064.50.2m thick clay bound macadam 180064.50.2m thick clay bound macadam 180064.50.2m thick clay bound macadam 180064.50.2m thick clay bound macadam 180064.1 It is required to set up corresponding safety warning signs, speed limit signs and deceleration belts.
Earnestly implement national guidelines, policies, standards and design documents to realize all functions of the project; The construction method and process are advanced, scientific, reasonable and reliable; 3.
The vertical access road not only meets the needs of on-site construction and production, but also meets the traffic needs of local villagers.
The horizontal connecting access road is a new access road, which will be reclaimed and restored after the construction is completed.
③ green vegetation shall be used for greening the access slope to prevent water and soil loss.
Preparation principle 1 III.
The line starts from Mazhuang village, Luoxi Township, Leye County, with a starting mileage of yk45 + 420 and ends at Tianwan Township, Leye County, with a terminal mileage of yk54 + 160, with a total length of 8.74km.
Construction design drawing of contract section tj-05 of Leye Baise highway in Guangxi Autonomous Region; 3.
Reasonable arrangement, careful organization, safety, quality and completion of work on schedule; 4.
to build the “most beautiful expressway” in Guangxi, the project will build lebai Expressway into not only a tourism sightseeing Road, but also a rich road to drive the economic development of “old, young, border and poor” areas.
Culvert pipes shall be embedded at the meeting points of mountain streams to ensure smooth water flow.
Baise is an important inhabited area of ethnic minorities.
permanent temporary combination scheme 5.1 combination of construction access road and permanent road 5.1.1 design overview of access road the construction of construction access road of the project meets the requirements of being used as permanent road on the premise of strict implementation of standardized technical guidelines.
466), implement a series of guidelines for Expressway standardized management, and achieve excellent project quality grade.
The surface water system is developed in a radial shape, rivers and streams are developed, the river valley section is “V” shaped, the valley slope is steep, and the river valley is “U” in some areas V.
5 Engineering Co., Ltd.
Carefully study the spirit of the document issued by the owner (Jiaoban highway letter [2016] No.
The terrain is strongly eroded and cut, and the mountains are steep and straight.
preparation basis 1.
Technical guide for Expressway Construction Standardization of Guangxi Communications Investment Group Co., Ltd.
Bidding documents and tender documents for construction of bid tj-05 of Leye Baise highway in Guangxi Zhuang Autonomous Region; 2.
project overview 2 v Permanent temporary combination scheme 35.1 combination of construction access road and permanent road 35.1.1 design overview of access road 35.1.2 access road setting 45.1.3 auxiliary setting of access road 45.2 combination of temporary power and permanent power 55.2.1 overview of temporary power 55.2.2 temporary power setting 55.2.3 relevant power supporting setting 55.3 combination of temporary and permanent residence 75.3.1 site selection of project management Department 85.3.2 site selection of mixing plant 85.3.3 Beam Yard Site selection of reinforcement plant 95.4 other temporary construction 10 VI.
There is a 3.5m wide earth road (GEMA village ~ bagan Village) from the starting point to bagan 1# bridge along the line There is a 1m wide path from bagan 1# bridge to the entrance of bonashan tunnel, and there is no road from the entrance of bonashan tunnel to the entrance of Keli tunnel, so the traffic is very difficult and can not meet the construction needs.
(site construction volume); 6.
length (m) subgrade width (m) pavement width (m) pavement (m) Remarks: from the concrete starting point of access road No.
② access road mileage signs and speed limit signs shall be set every 1000m; guidance shall be set at the intersection with each construction site Card (white characters on blue background) 5.2 sharp turn warning signs and steep slope warning signs shall be set 100m in front of sharp turns and steep slopes; at the same time, 0.5 * 1 * 1.5m anti-collision protection piers shall be set at the outer slope side, which shall be painted with yellow and black, and all warning signs shall be formulated according to current laws and standards.
Therefore, 11 transformers are required in our bid section..
Notice of Guangxi lebai Expressway Co., Ltd.
preparation purpose 1 IV.
Make practical and feasible plans through on-site investigation and research in combination with local conditions; 2.
The specific location and scale of the access road are as follows: No.
5.1.2 the access road is set with the combination of permanent and temporary construction.
This bid section belongs to low mountain and shallow cutting landform.
Leye County is known as the “Tiankeng capital of the world”, with rich tourism genres and many scenic spots along the line.
