The construction of the cement-stabilized soil structural layer should be organized in late spring and seasons with higher temperatures. The daily low temperature during the construction period should be above 5℃. The small mixer should be used in areas with freezing conditions and should be completed half a month to a month before the arrival of the first heavy freeze (-3~-5℃).
What are the construction requirements for cement-stabilized soil construction in the rainy season? Especially when it comes to the cement-soil structural layer, special attention should be paid to climate change and the cement and mixture should not be exposed to rain. The construction of the stabilized soil mixing station should be stopped when there is rainfall, but the cement mixture that has been paved should be compacted as soon as possible. During road-mixing construction, measures should be taken to remove water from the surface of the underlying layer to prevent the aggregates transported to the road from being excessively moist.

In some remote and remote mountainous areas, due to the needs of construction and development, but the transportation of commercial concrete is relatively inconvenient, self-built engineering concrete mixing stations are more considered. So, how far is the appropriate distance between the engineering concrete mixing station and the construction site?
It is generally recommended to build an engineering concrete mixing station every 30 kilometers. It is more cost-effective to choose a small concrete mixing station such as the HZS35 mixing station. It has a modular structure and is easy to install and move.
If it is a water conservancy project, such as river embankments and dams, a large concrete mixing station will usually be built nearby, which can meet the high demand for concrete and can mix coarse aggregate with an aggregate particle size of 80mm, reducing the cost of using powder.
With the acceleration of urbanization in my country, trenchless pipe jacking construction is used in more fields. Through the use of trenchless technology, the construction period can be effectively shortened, construction costs can be reduced, and safety can be guaranteed. It is the preferred technology for laying, maintaining and repairing underground pipe networks in today's cities.
1. Exploring the foundation through the building and jacking. When constructing trenchless projects under the building foundation, it is necessary to clarify the types of foundations encountered on the construction route. For some foundation pipes, underpinning and reinforcement measures can be taken before jacking to ensure that the construction will not affect the building itself.
2. Engineering geology and hydrogeological conditions change frequently along the pipeline soil layer. It is necessary to understand the changes in the soil layer before pipe jacking construction: In addition, the backfilled land section needs to be reinforced in advance to prevent excessive surface subsidence after pipe jacking construction.
3. Non-excavation detection of underground pipelines. Although advanced pipe jacking equipment has the ability to detect pipelines not far away from the forward route during construction, it is still worthwhile to identify underground pipelines on the ground in advance. This is still necessary to ensure the safe operation of other pipelines such as communications, electricity, water supply, drainage, gas, etc., and to ensure the normal life of the public.
