Dongtong Geotechnical Science and Technology Inc.

Zhejiang Dahua Technology Co., Ltd.

Jianping Li

Tao Wang

Qi Hu

Xingdi Huang

Haidi Zhu

Huajian Fang

Yiliang Deng

Zefeng Lou

Xiaobing Xu

Tianming Huang

Xiang Zhu

Zengqi Yang

Xiaoling Shi

A haunched component-based steel support structure for a foundation pit, including an enclosing purlin beam, a support beam located on an inner side of the enclosing purlin beam, and a triangular support arranged on the enclosing purlin beam. A first edge of the triangular support is fixedly arranged on the enclosing purlin beam. An end of the support beam abuts against a second edge of the triangular support to be supported on the enclosing purlin beam, and a haunched component is arranged between the enclosing purlin beam and a third edge of the triangular support. A first side of the haunched component is connected to the third edge of the triangular support, and a second side of the haunched component is connected to the enclosing purlin beam.

Haunched structure-based steel support structure for foundation pit

A structure for supporting a foundation pit based on a steel edge-arch structure, including: an enclosing purlin beam, the steel edge-arch structure, a plurality of support beams and a plurality of triangular supports. The support beams are located at an inner side of the enclosing purlin beam. The triangular supports are arranged on the enclosing purlin beam. End portions of the support beams are supported on the enclosing purlin beam through the triangular supports, and abutted on side edges of the triangular supports. The steel edge-arch structure is located between two adjacent triangular supports. The steel edge-arch structure includes two first haunched members and a bracing beam provided therebetween.

Structure for supporting foundation pit based on steel edge-arch structure

The present disclosure relates to systems and methods for controlling a stepping motor. A method may include determining a driving voltage based on a function, wherein the function includes a predetermined electric current and operating parameters of the stepping motor; and driving the stepping motor to work based on the driving voltage via an H-bridge.

Systems and methods for controlling stepping motor

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Hangzhou, China

Jianping Li