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In the previous article, we discussed the analysis of the selection and quota of earthwork machinery, and in this chapter, we will take a look at the classification of excavation according to the direction and the analysis of the construction process.
After the earthwork is excavated, it is uniformly called excavation. There are three main types of excavation in the highway: loose soil (also called soft soil), ordinary soil and hard soil, and the types used in construction projects are mainly a type of soil, a class of drawings and a type of soil. In the actual construction, the use of hard soil is preferred, followed by the use of ordinary soil, and loose soil is discarded.
Excavation needs to be used in different areas or fill or discard, wherein in the pile (20-100) interval for rolling, for the pile to use earthwork, far away from the pile interval for rolling, for the long-distance use of rolling earthwork, if after the amount of earthwork excavation, two use earthwork after rolling there is a surplus, then need to be discarded, that is, abandoned.
Then let's analyze the construction process of these earthwork types one by one, first of all, the pile uses the earthwork process, the pile uses the earthwork to excavate, and the excavation can be directly pushed with a bulldozer or a scraper, and can also be excavated with an excavator. Do you want to transport it?
Note that the pile utilizes earthwork and does not need to be transported, in the actual construction, this pile uses bulldozer or excavator more, the quota can be applied with a bulldozer to bulldozer, and when the excavator is applied to carry out the use of earthwork for this pile, there is no need to consider the loading process, so the excavator excavation earthwork quota should be adjusted by the factor, as shown in the following figure:
The use of distant transportation also needs to be excavated, excavation is mostly used with excavators to excavate the quota, and then dump truck transportation, it is necessary to pay attention to the transportation distance of the earthwork should calculate the average transportation distance, and the transportation distance of the sub-station number and each station number is calculated to obtain the average transportation distance. Generally, two quotas can be, excavators digging earthwork and dump truck earthwork quotas, excavators can play a loading process.
The construction process of the abandoned party is the same as the process of long-distance transportation, the difference is that the transportation distance of the abandonment party and the transportation distance of the long-distance transportation may be different, and the transportation distance of the abandonment party will exceed the transportation distance of the long-distance transportation. The distance designer of the two will give a more detailed reference, if not, it can be proposed to the design.
At this point, the content of this article will be temporarily over, and the original articles related to the profession will be updated from time to time, and I hope you will like it a lot, **support!
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