Shimin Zhang’s scientific contributions

This paper discusses and analyzes many solid and durable revetment structures and their defects and studies and introduces a novel technology of environment-friendly ecological siding retaining wall revetment structure, which is applicable to the revetment projects with low bearing capacity of waterside foundation and poor stability of original slope, has excellent application effect in the actual engineering and achieves high economic and social benefits. This paper also predicts the future development trend of the revetment: it's required that the revetment not only can guarantees the strength and stability, but also can mutually coordinate with the surrounding environment, so as to form an open ecological system maintaining the biological dynamic balance.

Apart from the multiple existing foundation pit support structures, this paper introduces the construction technology of an easily-removable combined prestressed special-shaped steel plate stiffening core cemented soil foundation pit support and studies and introduces its principles, technological characteristics, construction process and operating points. The technology organically combining the water stopping capability of the cemented soil and the high strength performance of the combined special-shaped steel plate has the characteristics of being highly permeability resistant, stiff and economical, is a green technology, and is applicable to the foundation pit support construction of various sorts of constructional engineering, highway engineering and embankment engineering.

This paper aims to solve the geological difficulty that soft soil layer exists below thick overburden by designing a novel pile type based on other treating methods, namely the rigid pile and the flexible pile are combined with the lower part as the plain concrete rigid pile having excellent bearing capacity and the upper part as the crushed stone pile capable of bringing the bearing capacity of the overburden into full play and reinforcing the drainage consolidation effect of the foundation, and also introducing the principles, characteristics and process of the technology. The technology is applicable to the treatment of the composite foundation with the geological condition of thick overburden and deep soft soil, has excellent application effect, high technological and economical benefits and wide popularization value in the actual engineering.

In order to overcome the defects of the anchor rod as insufficient anti-pull force, low elongation, low stability during construction and difficulty for drilling the rock stratum to be anchored, this paper innovates on the conventional anchor rod by introducing the newly-developed construction technology of guide-hole implantable branch-provided rock anchor rods, and presents its technology principles, the application scope, the technological characteristics, the construction process and the operating points. The construction technology improves the anchoring force of the anchor rod per unit length, overcomes the problem of insufficient anti-pull force, relatively reduces the anchor rod and the rock stratum drilling depth, facilitates the drilling and anchoring construction, and achieves excellent economic benefits and has wide popularization value.