软土路基的优化设计软件

Software for Optimizing Design of Soft Subgrade

本文介绍了软土路基的优化设计软件。该软件选择工程造价作为目标函数。将常用的软土地基加固方法组合成七种方案，用户可任意挑选其中的一种或多种方案进行比选。首先进行稳定分析，然后进行沉降计算，如果其中有一项不满足要求时，则自动舍弃该方案。对于长大的地层变化较大的工点，软件自动将其分段（最多可分５级）进行比较，然后，综合起来，按造价的高低，顺次输出可行方案供用户决策。为了提高计算速度，软件还使用了多种优化追踪技术。

The paper introduces the software, in which the engineering costs are selected as the objective functions, for optimizing the design of the soft subgrade. The usual methods for strengthening the soft subgrade are composited into seven schemes, and the users may select one or several schemes arbitrarily for comparison. The stability analyses at first and then the settlement calculations proceed. As if either of them could not fulfill the requirements, the scheme will be given up automatically. For big and long worksite with large variation of stratums, the software divides the worksite into several sections (no more than 5 sections) and the comparisons may proceed. Then, being synthesized, the feasible schemes will be put out in sequence according to the amount of engineering costs and may be adopted for decision by users. For raising the speed of calculation, many optimum tracking techniques have been adopted in the software.