soft stratum

The inner-bracing soldier pile retaining system has the advantages of high reliability, no trespassing red line, strong stratum adaptability, being easy to be combined with the top-down construction method, etc*, which is widely used in deep excavation supporting system in soft soil area.

在软土地区基坑支护中，内撑式排桩支护体系由于具有较高的可靠性、不侵越红线、地层适应性强、便于与逆作法施工相结合等优点而得到广泛应用。

Up to now, the subway crossing project through Hongxu Road is a pipe-roof project with the biggest cross-section box culvert in the world. It is constructed in saturated soft soil stratum in the Beihong Road located in the middle ring-road in Shanghai.

上海市中环线虹许路北虹路下立交工程是目前世界上在饱和含水软土地层中施工的横截面最大的管幕法工程。

The stress mechanism of bored occluding pile and its application in soft soil stratum

钻孔咬合桩的受力机理及在软土地层中的应用

The deformation of the landslide is mainly caused by new tectonic movement, earthquake, fracture zone and influence from soft stratum, and as well as by rainfall, river erosion and human activities.

滑坡变形主要受新构造运动、地震活动、断裂破碎带、软弱地层影响，同时受降水、江水冲淘和人类活动作用。

This paper discusses the application of the rammed pedestal pile in thin stiff stratum in soft soil based on the engineering practice, and presents the reinforce measure of adopting thin stiff stratum as pile tip bearing stratum.

结合工程实践对夯扩桩在软土中薄硬夹层的应用进行了探讨，提出薄硬夹层作为桩端持力层的加固方法。

The practice pointed out that the method of destressing at roof is superior to reinforcement methods in both technique and economics, it has opened up a new way to maintain large chambers in soft stratum.

实践表明：顶部卸压法无论在技术上还是在经济上都优于加固法，它为软岩大断面峒室的维护开辟了一条新的途径。

Design of a portable sampler for soft stratum

便携软层取样器设计