-
Anonymous users2024-02-06Summary. Dear, hello, the teacher received the question: what structural facilities must be built to build a highway in the mountainous area, and the answer the teacher gave you is:
The structural facilities that must be built to build highways in mountainous areas are: highway construction generally occupies a large area, and in addition to the highway itself, it also includes various management facilities, service facilities and other projects and ancillary projects along the route, so it is necessary to consider comprehensively when calculating the number of land acquisition and demolition, and do not omit it. Hope it helps<>
What structures must be built to build a highway in a mountainous area.
Dear, hello, the teacher received the question: what structural facilities must be built to build a highway in the mountainous area, and the answer that the teacher gave you is: to build a highway in the mountainous area, a structure must be built to set up a leakage ruler
Highway search and construction generally occupies a large area, and in addition to the highway itself, it also includes various management facilities, service facilities, and other projects and ancillary projects along the route, so it is necessary to consider comprehensively and not omit when calculating the number of land acquisition and demolition. I hope it will help you, <>
Hello dear, the following is an extended information about your question, I hope it will be helpful to you. According to incomplete statistics, in mountainous areas with complex terrain and ridges, bridges and tunnels account for 20% to 40% of the total length of the route, and the cost accounts for 30% of the total cost. Hope it helps<>
-
Anonymous users2024-02-05Hello dear relatives, the mountain highway bridge route site is complex, the altitude climbs rapidly, the terrain is narrow and steep, the ravines are vertical and horizontal, the landform type is complex, and the cross section should be flexibly selected. In general, the road section with relatively flat terrain and slow natural cross slope generally adopts the integral subgrade section; Separated subgrade sections should be used for tunnels, and integral subgrade sections can be used for short tunnel sections with limited conditions; The section with steep terrain adopts the frame design, and after technical and economic comparison, the separated subgrade section can be adopted, or the section form of half road and half bridge, half road and half tunnel can be adopted. The terrain of the mountain slag forest stove area is steep, there are many structures, and the ratio of bridges and tunnels has reached more than 70%, so the construction is difficult.
In order to facilitate construction, standardize the cost economy, and shorten the project cycle, the general large and medium bridges adopt prefabricated structures. When the span diameter is 16m, the continuous structure of the simply supported densely arranged T beam bridge deck is adopted; When the span diameter is between 20 and 45m, the prefabricated T beam is preferred, and the simple support is followed by the continuous structure; When the bridge spans a wide and deep valley, it is advisable to use a prestressed concrete continuous rigid structure or continuous beam bridge, but the span diameter should not be greater than 200m; When crossing the typical V-shaped valley in the mountainous area and the geological conditions are good, the Chunsun can be used for large-span reinforced concrete arch bridges; When crossing extra-wide and extra-deep valleys, suspension bridges and cable-stayed bridges can be used. When selecting multiple bridge schemes for the layout of porous girder bridges, the comprehensive analysis and comparison of the upper and lower structures and the foundation should be comprehensively considered, and a reasonable girder bridge layout should be selected.
Extra-long bridges, long-span bridges and special overpasses should generally be compared with the bridge type scheme, and the number and cost of two or more bridge schemes should be provided. <>
Since ancient times, building roads and bridges has been seen as a measure for the benefit of the people. In modern society, roads and bridges are also considered to be the foundation of economic development, and they are as important as the blood vessels in a person. However, when people build roads or railways, they will inevitably encounter obstacles from mountains and rivers. >>>More
Nowadays, owning a car may make our lives more convenient, but for some people, the car is usually driven in the city in daily life, and suddenly you have to go out to travel and get on the highway, and some situations may be different from the city roads. So what do you need to pay attention to when driving on the highway? The old driver tells the truth, and after reading it, he may be able to know the answer. >>>More
The highway toll collection procedure is that when the car arrives at the toll gate, the toll collector gives you a card, and when you get out of the toll booth at your destination, you hand over the card to the toll collector, and after the amount is displayed, you pay the money, and then you continue driving. >>>More
In many people's understanding, a rear-end collision accident must be the sole responsibility of the car behind, but in some cases, the rear-end collision may be the responsibility of the car in front. Today we summarize several kinds of rear-end collision accidents to see under what circumstances a rear-end collision accident occurs, which requires the front car to be fully or partially responsible. >>>More
Can I use the handbrake to turn around on the highway on a snowy day? You can't use the handbrake to brake on slippery roads in snow. >>>More