October 27-30 days，CISMGE The 14th National Conference on Soil Mechanics and Geotechnical Engineering of China Civil Engineering Society was held in China Optical Valley Science and Technology Exhibition Center（Wuhan）Solemnly convened。Underground space foundation engineering construction enterprises from all over the country、Machinery and equipment manufacturing enterprises、Survey and design unit、Scientific Research Institute、Trade Association、About 4000 experts and scholars attended the meeting.。
▲Meeting site
As one of the most influential academic events in the field of geotechnical engineering in China, the National Conference on Soil Mechanics and Geotechnical Engineering of the Chinese Civil Engineering Society is held every four years.，The conference was sponsored by the Soil Mechanics and Geotechnical Engineering Branch of the Chinese Society of Civil Engineering.，Wuhan Institute of Rock and Soil Mechanics, Chinese Academy of Sciences、Sponsored by the State Key Laboratory of Rock and Soil Mechanics and Engineering，Conference on Geotechnical Engineering“Green·Intelligence·Toughness”As the theme，To exchange and discuss the latest achievements and development trend in the field of soil mechanics and geotechnical engineering in China，Exploring the Green of Geotechnical Engineering Industry、Low carbon、The road of high-quality development of resilience，Lead the development of disciplines、Promote industry progress。
▲Meeting siteAs an inheritance of ingenuity，Centennial enterprise，Special guests of the conference--Gong Xiugang, General Manager of Shanghai Construction Machinery Factory Co., Ltd., attended the opening ceremony.，At the scene《TRDR & D and application of construction equipment》The project won the Mao Yisheng Geotechnical Engineering Technology Innovation Award.-Team Award，He was invited to attend the Mao Yisheng Award Forum.“Development and application of construction equipment for cement-soil mixing wall with equal thickness”As the title，Around“Construction method of cement-soil mixing wall with equal thickness、CSM、TRDEquipment and technology innovation、TRDTypical application cases”And other technical topics to make conference reports.。
▲Gong Xiugang, General Manager of Shanggong Machinery, attended the opening ceremony.
▲Won Mao Yisheng Geotechnical Engineering Technology Innovation Award on site-Team Award
▲Mao Yisheng Geotechnical Engineering Technology Innovation Award-Team Award medal ceremony 
▲Mao Yisheng Geotechnical Engineering Technology Innovation Award-Group photo of team winners
Construction method of cement-soil mixing wall with equal thickness
The report describes the conventional construction methods of waterproof curtain for building foundation pit in the construction method of cement-soil mixed wall with equal thickness, which mainly includeTRDConstruction method andCSMConstruction method, etc,It is widely used in pit bottom reinforcement.、Water stop or deepening of diaphragm wall joint、Newly added waterproof curtain and engineering projects with higher requirements for deformation control of surrounding environment。
TRDConstruction method：A square box body equipped with a cutting tool chain is inserted into the ground、While the transverse pushing is carried out to form the groove，The cutter chain carries out longitudinal cutting and stirring，And inject cement slurry into that original foundation from the cutting head at the front end，O that the soil in the original foundation and the injected cement slurry are fully mixed and stirred，Form the seamless cement-soil mixing continuous wall with the same thickness。CSMConstruction method：Milling deep mixing technology is equipped with two milling wheels at the bottom of the drilling tool，And that two group of milling wheel rotate in a vertical axial direction to stir.，Trough formation by sinking and wall formation by lifting，Vertical forced cutting of loosened soil，At the same time, cement is injected.、Water，High pressure air，Mixing and stirring to form a cement-soil stirring continuous wall with equal thickness and lap joint。
▲Gong Xiugang, General Manager of Shanggong Machinery, made a report on the meeting.
CSM、TRDEquipment and technology innovation
First, the report is rightCSMAn overview of equipment technology，Shanggong MachineryMS45 double-wheel mixing machine adopts pure electric drive.、High direct drive efficiency of variable-frequency adjustable-speed motor、The operation cost is low、Alternative hydraulic transmission system、And that purchase cost is low，Operating costs are hydraulic2/3，Power consumption as low as 8 degrees/Fang，Time-sharing emergency overload 1.5x，Motor forced cooling technology and other technical innovations.，And then, yesCSMEquipment and technology innovation—Drill pipe assembly，Will be traditionalCSMA slurry pipe、Trachea、The coolant pipe and the grease pipe are integrated in the drill pipe by changing a hose into a hard pipe.，Advanced technologies such as greatly improving the efficiency of drill pipe splicing are described and introduced.。
▲Gong Xiugang, General Manager of Shanggong Machinery, made a report on the meeting.
▲MSConstruction case of series double-wheel mixing drilling rig
Secondly，The report introducesTRDDevelopment course of construction method and technology，TRDConstruction method application field expansion、TRDEquipment market size、AndTRDBackground of continuous research on construction method。In 2012, Shanggong Machinery independently developed the first 61 in China.mConstruction capacityTRDEquipment，At present, it has formedTRD-60/70/80（Dual power system）Three series，AmongTRD-80E（Pure Electric Power Drive）Maximum construction depth created by construction machine 86mThe world record， Further expand the product range in 2022，Push outTRD-C50 process machine，Then to this year's pure electric drive.TRD-C40EListing，Subdivision of Shanggong Machinery Products“Value competitiveness”It has been fully reflected.，Further consolidationTRDIndustry leading position。 Later ，Sharing of report breakdownTRDInnovative technology of construction method and equipment：●Main and auxiliary dual power system，Safer，More energy efficient；●Chai、Electric double power cabinet，And that adaptability is wide；●Ultra-deep curtain solution：Upper and lower double shotcrete technology、Dual-channel tiltmeter technique，Make the quality of the wall higher；●Cutting box wedge connection technology，Safer and more reliable；●Remote control technology，Safer and more efficient；●Remote construction monitoring system，Make management easier。
▲Gong Xiugang, General Manager of Shanggong Machinery, made a report on the meeting.
▲TRDConstruction method machine construction case
TRDTypical application cases
Finally，The report was passedTRDAdvantages of the construction method、Super deepTRDNew technology，The excellent performance of many typical construction cases all over the country is listed.，In-depth analysis of Shanggong MachineryTRDMain technical characteristics of process equipment、New technology、New intelligent control technology，How to ensure the quality of wall，And give a comprehensive introduction toTRDCore advantages of construction method and equipment in the construction field of equal-thickness cement mixing wall。Secondly，The report is rightTRDConstruction method application expansion——TADConstruction method、Advantage、Cases andTRDThe latest application of construction method: ultra-deep steel composite enclosure wall（Test）For further overview。
▲Gong Xiugang, General Manager of Shanggong Machinery, made a report on the meeting.
▲Shanghai University of Science and TechnologyXRay Project No.5 Well
▲Underground Transportation Hub and Supporting Project of South District of Pudong Airport
▲Xiongxin High-speed Railway Project in Xiongan New Area
▲Ganjiang River Tail Comprehensive Regulation Project
▲Shanghai Yunling West Road Shield Receiving Shaft Portal Ultra-deep Reinforcement Project
▲Phase I Project of Key Embankment Reinforcement in Dongting Lake AreaIn recent years，To promote the sustainable development of the construction industry，We should stick to green and low carbon.、The development path of energy conservation and emission reduction，Industrialization of foundation pit engineering is an effective means to achieve energy saving and emission reduction。In construction、Underground works、Enclosure of deep foundation pit、Revetment works、Tunnel、Construction projects of underground structures and space utilization such as dams，With the development of underground space structure, the scale is becoming larger and larger.、Deep、Tight、Complex and changeable development，It also provides a broad stage for the theory and technology of underground structure and space utilization.。Country“Fourteen five”Plan:Accelerate digital transformation、Promote green development、Improve the quality of the city in an all-round way、We will further promote low-carbon transformation in construction and other fields.，Shanggong Machinery series chemical equipment has contributed to the construction of many underground space projects and the application of deep foundation pit projects in urban buildings all over the country.，In order to meet the engineering requirements of ultra-deep foundation pit，Intelligentization of construction equipment、Visualization、Informatization、Low environmental impact has become the direction of development and unremitting efforts.。
