Recently, TYSIM Foundation KR125A Small Rotary Drilling Rig was constructed in the 2020C-39 Plot Development Project of Jiangyin Yi Shan Lake Chengli Land, a commercial housing in Jiangyin City, Jiangsu Province. The project is a commercial housing construction project. The geological conditions of the site are mainly backfilled stratum, muddy silty clay, silty clay mixed with silty soil, silty sand and silty clay, which is difficult to construct. The stratum is formed by backfilling the original lake, especially the muddy silty clay stratum is prone to collapse. The on-site bored pile diameter is 600mm and 800mm, the hole depth is 11m ~ 20m, the 11m casing wall protection is used under the puller, and the rotary drilling rig successfully completes the hole-forming construction. TYSIM foundation is equipped with skilled operators for more than 3 years. It is necessary to strictly control the drilling speed and drill pipe lifting speed, effectively prevent hole collapse, give full play to the advantages of small drilling rig and large power, successfully complete the construction task, reduce the construction cost for customers, shorten the construction period, and win the unanimous praise of customers.TYSIM KR125A rotary drilling rig, with a total weight of 35 tons, a construction diameter range of 400~1500mm and a construction height of 15 meters, has the functions of integral pole transportation and automatic folding mast, reducing the transportation height while reducing the disassembly and assembly time during transportation. The original imported walking reducer and motor make the equipment have good climbing performance. At the same time, the 12.5-ton-meter power head torque can fully cope with most geological conditions such as pebbles and gravel. Select the original American Cummins engine with strong power, and cooperate with the electronic control system and hydraulic system of TYSIM core technology to give full play to its working ability. The whole series of products have passed GB certification and EU CE certification, and better dynamic and static stability design to ensure construction safety;Wuxi TYSIM Foundation Engineering Co., Ltd. takes "service" as the core, focusing on the sales, leasing, construction, replacement, remanufacturing, service, labor and training, construction method consulting and promotion of small and medium-sized piling machinery. The company has more than 80 sets of small and medium-sized piling equipment, and has fully cooperated with 12 member companies of Luying Society to reach a market partnership. Relying on dozens of pile manufacturers to achieve professional maintenance and service delivery of equipment, establish a maintenance cooperation base, and have a professional technical team skilled in construction methods, equipment maintenance and many years of industry experience. to provide customers with professional construction process guidance and construction scheme. After six years of accumulation and investment, cooperation with customers or independent construction, with small rotary drilling rig to complete the fishing light complementary, dam reinforcement, underground pipe gallery, water construction and other new areas of construction applications, for the domestic small rotary excavation method to promote the application of contribution. TYSIM Foundation will manage more than 100 rotary drilling rigs and is committed to building a leading professional piling service platform at home and abroad.