Lession 6: Construction of plastic concrete layer

-After the installation is complete, the class is the consent of the owner and supervising contractors conducting construction of sprayed concrete layer of plastic. Before laying asphalt concrete layer must be clean, dry and flat surface Foundation layer, transverse gradient processing for true to the design requirements.

-Before laying asphalt concrete layer, to irrigate a sticky plastic cling, or fast analysis of emulsion 1-1, 5 kg/m2 or medium analysis, the irrigated stick sticking must perform before laying asphalt concrete layer from 3 -5 hours.

-In the case of plastic cannot be used liquid and emulsion resin can be cooked to a temperature and watering well.

-Ever streak, scattered in a segment of construction of a class are staggered from each other in order to ensure the same cross-section of the sockets of the structural layer must not overlap, causing sinking, broken locally.

-The Sockets along a stretch of road in the heart of construction is completed in July aims to smooth road surface pros, make sure the stick is good between the old and the new are scattered trails dotted across the trails, avoid condensation of water in the vertical joints.

-When executing each trail are scattered in a class must have formwork & must use automatic level checked regularly.

-In the course of construction must have a size 3 m check regularly the flat rate to additional timely the pavement missing, uneven.

-All cases when the execution of the work of the projects are to note the work safe for passing vehicles &, avoiding traffic jams. Must have the guidance and coordination of traffic.

-When the temperature 25 degree C: in sheltered places the contractor will execute each streak sprayed L = 150 m - 200 m; in airy places each streak sprayed L = 80 m -100 m.

-On sprayed concrete contractors will complete construction of the entire width of the road, not to happen the phenomenon have sockets along to the next day.

-Only plastic concrete construction in those days no rain, dry nails, air temperature not below 5 degree C

Lession 5: Farm Shack layout, storage, electrical system installation and the water supply and drainage

a. prepare the shack camp

All infrastructure including: camp Shack and the ancillary construction contractors are concentrated near the right online safety RADIUS outside blasting.

 

b. electricity and water service construction

The contractor will contract with the local power bodies where power lines had come over to serve construction and will use 250 KVA generator in the event of lost power grid. Water source will use the water truck to combined with the irrigation pump washing and watering the moisture during construction of road surface Foundation layer.

 

c. the Volume of materials, construction equipment

The contractor will build the warehouses to the material in the range obtained investor, consultant as well as the relevant unit. The storing of materials will be constructed in a logical manner to the gathering of materials is easy and convenient for installation.

 

d. the goal of surface water and groundwater

Prior to construction contractors will ensure keeping the ground works, foundation pits, dumps land grab by a dry ditch system always objective, target track (surface water), water collection wells pumping pepper (ground water).

Lession 4: Measuring net plug and locate works

After the owner handed the pile to mold and mold rear elevations, contractors will lead to landmark buildings, building the benchmark for construction and testing. The benchmark is made of concrete, placed at the location of the stable, certainly not in the area of construction and be protective barriers. The benchmark bond was deployed along the routes form the grid control mode.

 

The drawing grid control will have to show the relationship between the standard mold together, between the benchmark with a score of important navigation works with the metrics angle measure closed loop and located between them (the average was calculated wrong) with the correct number.

 

From the benchmark works, the contractor would lead to the sending of the construction phase. The post is made of 60x60x700mm wood pile close deep into the ground, surrounding masonry protection, there are nail positioning, and also covered for sure. In the course of construction and will regularly check the accuracy and stability of the sender. If there is doubt about the accuracy should check back from the benchmark works.

 

Determining the location of the works on the premises and is conducted according to the sequence:

-First, to identify the main lines of works (plays the axial positioning works, located 20 m/50 mold). The piles of this positioning is made of 40x40x500mm wood, on top of the pile has nailed the positioning.

-Then, take the main lines as standard measuring angles on both sides to determine the cubic shape earthworks. Based on design drawings (sections), its surface is then "ga" for the earthworks.

-The kick-"ga" is played with wooden shelves, on the wood specified hemorrhage: hemorrhage at its core, natural ground in position to try to pile, slope roof we dig down Connie (Connie's legs) or cut up (Connie's peak) from a standard nail points.

-The mold must retain during the process of construction and Commission.

-The benchmark works are preserved in order to monitor and evaluate the deformation of buildings during the operation.

Lession 3: Một số thuật ngữ trong bản vẽ cột biển báo, vạch sơn

Replacement of bridges             Thay thế cầu qua song

Service road along To Lich river           Đường công vụ dọc song Tô Lịch

Capping layer               Đáy áo đường

Bottom of K95 layer     Đáy lớp K95

Drawing title                 Tên bản vẽ

Elevation BRT Yên Nghĩa- Khuất Duy Tiến

Plan annotation Chỉ dẫn mặt bằng

Typical cross section     mặt cắt ngang điển hình

Signing and tripping       Biển báo và vạch sơn

Sign post details            Chi tiết cột biển báo

Pedestrian handrailing details     Chi tiết rào chắn người đi bộ

Schedule of road marking arrow and traffic signs           Tổng hợp khối lượng vạch sơn mũi tên và biển báo

Schedule of pavement marking  Tổng hợp khối lượng vạch sơn

Dimensions are in meter                        Kích thước trong bản vẽ là m

Details of BRT stop refer to architectural drawing          Chi tiết bến BRT xem trong bản vẽ kiến trúc

Profile                          Cắt dọc

Steel beam                   Ống thép

Red-white painting        Sơn trắng đỏ

Blinding stones  Đá dăm đệm

Side view                     Mặt cắt

Fixing pin                      đinh ghim

Cap detail                     chi tiết nắp đậy

Curb                            bó vỉa

Connection of steel       liên kết ống thép

Construction limit          giới hạn xây dựng

Existing sidewalk          vỉa hè hiện trạng

Ramp for disable people           dốc cho người tàn tật

Construction corridor                hành lang xây dựng

Crossing marking                      Vạch sơn cho người đi bộ

To platform                              đến nhà chờ

Unit                              cấu kiện

Length                          chiều dài

Weight                         trong lượng

Concrete class D          Bê tông loại D

Blinding stone               Đá dăm đệm

Lession 2: Biểu mẫu trắc dọc - Trắc ngang - Bình đồ

Brif plan                       Bình đồ sơ lược

Datum                          mặt so sánh

Design gradient Dốc dọc thiết kế

Design elevation            cao độ thiết kế

Distance                       Khoảng cách

Existing ground Cao độ tự nhiên

Partial distant                Cự ly lẻ

Accumulate distant        Cự ly cộng dồn

Station no                     Tên cọc

Straight-cuver               Đoạn thẳng- đoạn cong

Type of retaining wall                Kiểu tường chắn

Plan                              Bình đồ

Longitudinal profile       Trắc dọc

Concrete slab number on the left           Số hiệu tấm bê tong trái tuyến

Concrete slab number on the right         Số hiệu tấm bê tong phải tuyến

Handicap curb ramps                            Chỗ hạ hè cho người tàn tật

Concrete block                         Hè lát gạch xi măng

Grass area                                            Diện tích trồng cỏ

Typical cross section of Quang Trung street       Mặt cắt điển hình phố Quang Trung

Sidewalk                      Vỉa hè

Carriageway                 Đường xe chạy

Median                         Giải phân cách

Curb type D                 Bó vỉa loại D

BRTL lane                    làn xe buýt nhanh bên trái

Design elevation            Cao độ thiết kế

Concrete class D          Bê tông loại D

Mortar class H             Vữa đệm loại H

Curb type C                 Bó vỉa loại C

Existing asphalt pavement          Mặt đường asphalt hiện trạng

Pavement details                       Chi tiết mặt đường

Adjusting BRT route                 Tuyến hiệu chỉnh

Excavate existing pavement       Đào mặt đường cũ

Lession 1: Biểu mẫu khung tên

Chúng tôi sẽ giới thiệu lần lượt từng bài trên trang web về tiếng anh chuyên ngành Giao Thông.

BRT: Bus rapid traffic   Tuyến xe buýt nhanh

Hanoi People’s Committee       UBND Thành phố Hà Nội

Department of transport            Sở GTVT

Hanoi urban transport development project management unit     Ban quản lý dự án đầu tư phát triển giao thông đô thị Hà Nội

Transport engineering design inc.           Tedi

Architecture and civil engineering consultants company Công ty tư vấn thiết kế kiến trúc xây dựng

State: Detail design       Thiết kế kỹ thuật

Paving works                Công tác mặt đường

Station                          Lý trình

Designed by                 Thiết kế

Checked by                  Kiểm tra

Design leader                Chủ trì hạng mục

Design manager            Chủ nhiệm thiết kế

Quanlity control            KCS công ty

Director                        Giám đốc

Scale                            Tỷ lệ

Code                            Mã số sản phẩm

Drawing no                   Số bản vẽ

Issured                         Lần xuất bản

Revised                        Lần chỉnh sửa

Note                            Ghi chú

Hanoi department of construction          Sở xây dựng Hà Nội

Construction drawing design                 Bước thiết kế BVTC