新疆甘莫公路盐渍土击实试验研究

Experimental Study on Compaction of Saline Soil in Xinjiang Ganquanpu-Mosuowan Highway

新疆盐渍土对公路造成危害严重，为了解决公路盐胀病害，本文对盐渍土击实特性进行研究。通过模拟工地压实条件，用标准击实的方法，测定在某种压实功下土的含水率和干密度的关系，确定土的最佳含水率和相应的最大干密度，以求用最小的压实功，得到符合工程要求的密实度。硫酸盐渍土的盐胀破坏是硫酸钠含量、含水率、干密度、温度等条件综合作用的结果。在工程中应该尽量减少土体的硫酸钠含量和含水率，尤其要避免饱和含水率的条件，从而为提出更有效的盐胀治理措施提供理论依据。

Saline soil in Xinjiang Caused serious harm to the highway. In order to solve the salt expansion perniciousness on highway, by simulating site compaction conditions and using standard compaction method this paper studied the saline soil compaction characteristics, measured the relations between soil moisture content and dry density in a compaction function and determined the best soil moisture content and the corresponding maximum dry density, which can get the density according to the project requirements by using the least compaction function. Salt expansion damage of sulfate saline soil is the result of the integrated effect on sodium sulfate content, moisture content, dry density and condition temperature. In the engineering it should be tried to reduce the sodium sulfate content and moisture content of soil, especially avoid saturated moisture ratio, which can provide the theory basis for more effective salt expansion management measures.