Foundation treatment engineering inspection
1. Introduction
Because of the large construction scale and dense underground pipe network, the ethylene glycol project of Binzhou Chemical Industry Company has high requirements for the stability and uniformity of foundation. The location of the project belongs to the collapsible loess layer prone to deformation under the action of water and pressure, causing the building to tilt or even collapse.
Site of treatment of collapsible loess foundation
2. Treatment solution
The ethylene glycol project of Binzhou Chemical Industry Company adopts the method of combining the measured value of field test with the calculated value of indoor test, which further improves the accuracy of collapsibility assessment. According to different grades of collapsibility and buildings, the foundation treatment methods such as dynamic compaction, compaction pile, deep dynamic compaction in hole and pile foundation were adopted to solve the problem of foundation collapsibility.
Comparison of soil samples before and after foundation treatment
3. Construction situation
The foundation treatment test and inspection for the ethylene glycol project of Binzhou Chemical Industry Company lasted for 16 months, with about 20000 geotechnical tests, about 3000 load tests, 120 standard penetration tests and some other in-situ tests.
Soil samples, laboratory tests and field tests
4. Achieved accomplishment
With different construction methods, the stability and uniformity of the foundation have been significantly improved. The results show that the dynamic assessment of loess collapsibility not only provides a reliable basis for optimal design, but also plays a guiding role in construction, which not only produces significant technical and economic benefits, but also ensures the engineering quality and prevents and reduces foundation collapsibility accidents. This method provides a technical idea for optimizing the treatment of large and collapsible loess foundation.
5. FAQ
Q1: Why not use pile foundation to directly penetrate collapsible loess layer to solve this problem?
A: Buildings or structures with different functions have different requirements for the engineering performance of foundations, so it is uneconomical to use pile foundations for foundation treatment, and the effect is not necessarily good.
Q2: What can you do in this field?
A: We can understand geotechnical engineering and geological engineering problems encountered in engineering construction.
Q3: What advantages do you have compared with other companies?
A: We serve design, construction and scientific research through geotechnical engineering survey, and have established an excellent technical team and a complete set of technical service systems.
Q4: What is the cost of geotechnical engineering test?
A: The cost will depend on many issues, such as geological conditions, test contents and test methods.
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