Urban development，Green first，In order to promote the low-carbon transformation of the construction mode of the municipal highway industry，To achieve high-quality green development of underground space and foundation construction。November first in the afternoon，Sponsored by Shanghai Municipal Highway Industry Association、Co-sponsored by the Department of Underground Architecture and Engineering, School of Civil Engineering, Tongji University《Underground Space Construction Method Innovation and Low Carbon Exploration of Foundation Construction》The public lecture was held in the Civil Engineering Building of the School of Civil Engineering, Siping Road Campus, Tongji University.，Lecture invitation and transportation、Municipal、Water transport、Relevant administrative departments in the field of port and other construction projects、Design、Construction、Construction、 Consultation 、Technology of agent construction unit、Attendance of equipment related personnel and leaders，Discuss the technical development of construction method innovation and equipment application of underground space foundation。
As an invited unit，Gong Xiugang, general manager of Shanggong Machinery, was invited to attend as a speaker.，At the lecture《Underground Space Construction Method Innovation and Low Carbon Exploration of Foundation Construction》As the title，AroundTRDConstruction method and case、CSMConstruction method and case、DMPConstruction method and case、Make reports on special topics such as pile-planting methods and cases.。
▲Special public welfare lecture site
The special public welfare lecture was presided over by Jiang Min, Secretary-General of Shanghai Municipal Highway Industry Association.，Secretary General Jiang said.：The underground space and foundation construction industry is facing“The carbon reaches the peak、Carbon neutral”A great challenge for the goal.，Under the support and guidance of national policies，Green、Low-carbon underground space and foundation construction industry construction methods have become a trend.。In the process of urban development，More and more attention has been paid to the development and utilization of underground space.，Growing downward in development“The city of the future”In the process，Deep foundation pit engineering is a key link in building construction.，It plays an important role and significance.。This time, Gong Xiugang, general manager of Shanggong Machinery, was specially invited to do it.《Underground Space Construction Method Innovation and Low Carbon Exploration of Foundation Construction》，It also aims to help promote the low-carbon transformation of the construction mode of the municipal highway industry by relying on the innovative achievements of the new green construction technology of Shanggong Machinery over the years.。
▲Jiang Min, Secretary-General of Shanghai Municipal Highway Industry Association, presided over the lecture.
TRDConstruction method and case
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。
▲General Manager of Shanggong Machinery《TRDConstruction method and case》Special report
Right in the reportTRDResearch background of construction method、Characteristics of construction method、Construction method and equipment configuration、Equipment innovation technology、Application field of method、TRDConstruction method application expansion——TADConstruction method、Advantages and other aspects are elaborated.。
Among，The report focuses on subdivision and sharing.TRDInnovative technology of construction method and equipment：
●Main and auxiliary dual power system，And that switch from the auxiliary power to the main pow can be realized.；
●Diesel-electric dual power system，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；
●Pure electricityTRD-C40ENew Energy Technology。
▲TRDConstruction method machine construction case
At the same time，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。
CSMConstruction method and case
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。
▲General Manager of Shanggong Machinery《CSMConstruction method and case》Special report
Combination of reportsCSMConstruction process、 Advantage ，The construction case focuses on the sharing of Shanggong MachineryMS45EDouble-wheel mixing machine is driven by pure electricity.、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 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.。
▲MS45EDouble wheel agitatorConstruction case
DMPConstruction method and case
DMPConstruction method is a new digital technology of micro-disturbance mixing pile, which is a kind of gas.、Slurry combined construction method，The method is mainly use for solving that problem that the strength of a pile body is uneven in the construction proces of the traditional mixing pile.、The level of informatization is low、Construction quality is difficult to control、More replacement soil、The construction disturbance is large、Low pile-forming efficiency and the like；This method can effectively reduce the resistance during deep mixing.，Improve the mixing uniformity of cement soil and the quality of pile formation。
▲General Manager of Shanggong Machinery《DMPConstruction method and case》Special report
DMPConstruction equipment corresponding to construction methodDMP-IThe digital micro-disturbance mixing pile machine has the following characteristics:：●Precise monitoring，Adjust the slurry in real time、Air pressure，Reduce formation disturbance； ●Special drill pipe，For pulp、Air pressure opens a release channel；●Additional cutting blades as required，Prevent clay from adhering to drill pipe and forming mud ball，Reduce the disturbance to the formation；
●Design of special drilling tools and corollary equipment，And that stir uniformity is improved、Pile verticality can be controlled at 1/300。
▲DMP-IDigital micro-disturbance mixing pile machineConstruction case
The equipment has an intelligent digital construction control system to make the quality of the construction process controllable.，At the same time, it also greatly improves the convenience of construction.。The contents collected and displayed by the digital construction control system include shotcrete pressure,、Slurry flow、Jet pressure、Underground pressure、Pile depth、Pile forming speed、Pile-forming verticality and other parameters；Can be generated to include pile length、Construction time、Underground pressure、Cement consumption、Construction record of parameters such as pile verticality；At the same time, the construction parameters can be uploaded to the centralized control center，Realize real-time monitoring of the construction process。From the reportDMPConstruction method compared with other traditional construction technology，It shows the latest project achievements and construction core advantages of shotcrete mixing technology and engineering cases in underground engineering construction information control technology.。
Pile-planting method and case
The static drilling and rooting method is to use the static drilling and rooting pile drilling machine to drill holes.、Deep mixing and under-reamed grouting mixing，Finally, the precast pile is implanted，And press Drill、Bottom expansion、Grouting、Pile foundation construction method for implantation and other processes。The pile-planting construction method has the advantages of no soil squeezing,、No vibration、Low noise；And that pile quality is good，The elevation of pile top is fully controllable.；Very strong vertical compression resistance、Withdrawal and horizontal load resistance、Less mud discharge and the like.。
▲General Manager of Shanggong Machinery《Pile-planting method and case》Special report
With the development of society and the progress of economy，Large industry、Civil construction、More and more high-rise buildings and other construction projects。Static drilling embedded pile is a newly innovated and popularized pile foundation technology.，It combines the advantages of precast piles and cast-in-place piles.，Characteristics of the pile body、Construction process、Means of Quality Control and Improvement of Stress Characteristics of Pile Foundation，The method has obvious effect on that aspects of the cost of the pile foundation project, environmental protection and the like.。
▲DMP-IDigital micro-disturbance mixing pile machineConstruction case
The report is based on the research background of pile-planting method.、Characteristics of pile-planting method、Equipment configuration of pile-planting method、Construction cases and other aspects are explained.，Explain Shanggong MachinerySDPThe series of static drilling and rooting machine has the advantages of large torque,，The drilling depth is large， High technology content，The reliability is good，High construction efficiency and the like，Its performance has reached the international advanced level.。
▲Chen Kewei, Technical Director of Shanghai Zhongchun Hi-Tech Center, shared the report
▲Li Jun, deputy general manager of Shanghai Guangda Foundation Engineering Co., Ltd., made a report to share.
▲Professor Ye Guanbao, School of Civil Engineering, Tongji University, made a report to share.
In 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.。On the road of future development，Shanggong Machinery will spare no effort to promote the innovation and development of green building industry，Responding to national development strategies，The goal becomes“Green Smart Building Leads the Benchmark”Enterprise。
