CN115536341A
The invention provides concrete for heating and shaping full tunnel hole slag aggregate and a preparation method thereof, and belongs to the technical field of machine-made aggregate used as concrete. The invention provides a concrete for heating and shaping full tunnel hole slag aggregate, which comprises the following materials: 375-480 parts of …
Study on mechanical property and breakage behavior of tunnel slag …
The use of slag is an environmental task that will have a social impact. The study theoretically proved and experimentally established the feasibility of laying asphalt concrete coatings with ...
CN115846362A
The application provides a tunnel waste slag recycling device and a tunnel waste slag recycling method, belongs to the technical field of tunnel engineering, and comprises a waste slag rack assembly and a waste slag circulation assembly. Abandon sediment frame subassembly includes chassis, support shaft frame and portal frame, it includes material …
Method and device for rapidly and comprehensively …
Invention patent CN111596030A "A Rapid Evaluation Method for Tunnel Slag Performance Applicable to the Preparation of Mechanism-Based Aggregate" uses the crushing index to evaluate the mechanical properties of tunnel slag within the same potential energy range, but the test accuracy is low; Invention Patent CN111596029A "A Method Applicable to …
tunnel in the slag crushing sts
tunnel in the slag crushing costs gtecoachingcoza tunnel in the slag crushing costs acherishedbirth double teeth roll crusher/grade crusher from professional. Home; Equipment; About; Contact; Email: [email protected] Our product. Trapezium Mill. High Frequency Screen. Wheel Sand Washing Machine.
Construction Brick Slag Crushing And Recycling Plant
The above three applications of building brick slag require a crushing and screening process. In the crushing process, jaw crushers are the coarse crushing equipment, and cone crushers or impact crushers are the secondary crushing equipment. Through the combination of this equipment, crush building brick slag into finished …
A New System to Evaluate Comprehensive …
The accurate performance evaluation of a cutterhead is essential to improving cutterhead structure design and predicting project cost. Through extensive research, this …
Slag Crushing Machine Price, Manufacturers & Sellers in India
To order a Slag Crushing Machine, one has to click on the product one is willing to buy. On the product page, a specific button is mentioned on the Slag Crushing Machine detail page called "Request callback". After clicking the button, a pop-up window with a form named "Ask the seller" will open. Just fill up your contact details, name, and order details about …
Study on mechanical property and breakage behavior of tunnel slag …
It is confirmed that the tunnel slag material is a strain softening type material, and the degree of softening decreases as the confining pressure increases. ... The sensitivity of rock types with lower strength in the mixture to the crushing behavior under external loads can easily alter the internal structure of the roadbed, thereby affecting ...
Research on the damage characteristics of rock masses …
Among them, two measurement circles are set in the vertical direction, numbered 1 and 2, measurement circle No. 1 above the hollow hole at 1 m from the hollow hole, measurement circle No. 2 below ...
Applied Sciences | Free Full-Text | Mechanical Properties of Slag …
Homogenized micro-crack crushing can fully retain the bearing capacity of concrete pavement, but local weak road base needs to be reinforced before being directly overlaid with hot-mixed asphalt. Therefore, indoor tests were conducted to study the mechanical properties of slag-based geopolymer as a grouting material for weak road …
Cracking feature and mechanical behavior of shield tunnel …
In the practical engineering, the shield tunnel lining is usually buried under the water level, so the segment cracking and joint crushing may form leakage passages (Wang and Huang, 2020). Therefore, accurate predication of the segment cracking and joint crushing is of great significance to take effective measures to prevent shield tunnel …
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the physical characteristics of the abandoned slag aggregate in the tunnel. The test detected the crushing value of the coarse aggregate, needle plate, and fine aggregate liquid limit, plasticity index and other indicators. The results are shown in Table 2 and Table 3. Table 2. Tunnel abandon slag coarse aggregate index test results Project …
Made with Tunnel Slag Machine-Made Sand
Therefore, the performance of tunnel slag machine-made mortar and concrete needs to be further investigated. Materials 2022, 15, 4817 3 of 23 ... and the crushing value was …
OneTunnel | Economic Analysis of Crushing System in Metallurgical Slag
"Metallurgical slag (MS) such as steel slag, copper slag is a renewable resource and its compressive strength exceeds 200MPa in general. Because pure metal slug can easily be mixed into MS, complex recycle system is necessary in order to realize MS's recycling. Meanwhile, there is high equipment failure rate in conventional crushing …
How to make tunnel slag turned into sand?
Such as The processing method is vibration feeder feeding, the first crushing adopts PE600x900 jaw crusher (the equipment shall be equipped with strip screen, which is used to filter soil and long ...
Study on key technologies of green and efficient utilization …
Key words: Railway tunnel /; Abandoned slag /; Ecological environment /; Overall planning /; Green project. Abstract: In view of the main contradiction of huge …
CN110627446A
The invention discloses economic and environment-friendly tunnel shotcrete which comprises the following raw materials in parts by weight: 400-500 parts of cement, 550-650 parts of river sand, 550-650 parts of stone chips, 400-500 parts of small stones, 150-250 parts of water, 3.8-5.7 parts of water reducing agent, 1.4-9.4 parts of rebound control …
OneTunnel | Study On Crushing Flowsheet And Equipment Of Steel Slag
The key problems of current flowsheets and equipments are analyzed. A new steel slag's crushing flowsheet whose key equipments are the improved inertia cone crusher and inertia vibrating jaw crusher is proposed. An advanced two stage open-circuit crushing method is adopted in the flowsheet, with 90% of particle size crushing under …
Laboratory investigation of solid wastes combined …
After crushing, tunnel slag can be divided into four grades: 4.75 ∼ 9.5 mm, 9.5 ∼ 19 mm, 19 ∼ 31.5 mm, and stone chips. The particle size of each grade of …
Study on comprehensive utilization and management of …
Abstract. Based on the investigation of the comprehensive utilization technology of tunnel slag in expressway, the author finds that combining with the characteristics of the …
Laboratory investigation of solid wastes combined with tunnel slag …
After crushing, tunnel slag can be divided into four grades: 4.75 ∼ 9.5 mm, 9.5 ∼ 19 mm, 19 ∼ 31.5 mm, and stone chips. The particle size of each grade of aggregate is shown in Table 1. The performance indicators met the relevant requirements of Specification for Aggregates of Highway Engineering (JTG E42-2005) [25], in which the …
(PDF) Performance Evaluation of Tunnel-Slag-Improved
through coarse crushing, medium crushing, fine crushing, dust removal and cleaning led to the tunnel slag used in subgrade, as illustrated in Figure 9 b. The physical properties of tunnel slag ...
CN111596030A
The invention relates to a method for quickly evaluating the tunnel slag performance of a tunnel suitable for preparing machine-made aggregate, which comprises the following steps: 1) sampling: randomly selecting tunnel hole slag of different tunnel faces of the same section, ensuring the shape of the selected tunnel hole slag to be basically …
Tunnel hole-through
Tunnel hole-through. Dismantling the tunnel boring machine 10 days after the hole-through on the Gotthard Base Tunnel in Switzerland. Tunnel hole-through, also called breakthrough, is the time, during the construction of a tunnel built from both ends, when the ends meet, [1] and the accuracy of the survey work becomes evident.
tunnel hole slag crushing r
T23:12:39+00:00 Tunnel Hole Slag Crushing liviusonderwijsnl. Tunnel Hole Slag Crushing; Tunnel Boring Machine An Overview Sciencedirect Topics Aug 18, 2010 Concrete tunnels can be constructed using various tunneling methods, eg, the cut and cover method in soft ground, tunnel boring machine TBM method for a rock tunnel or …
Tunnel warfare
A Confederate counter mine burrow at Fort Mahone, Petersburg, ia In 1864, during the Siege of Petersburg by the Union Army of the Potomac, a mine made of 3,600 kilograms (8,000 lb) of gunpowder was set off approximately 6 metres (20 ft) under Maj. Gen. Ambrose E. Burnside's IX Corps sector. The explosion blew a gap in the Confederate …
Key Technology of TBM Excavation in Soft and …
Tunnel Boring Machine (TBM), as the most advanced construction equipment for rock tunnels, has been widely used in railway tunnel engineering, water …
Method for quickly evaluating the performance of tunnel hole slag
Method for quickly evaluating the performance of tunnel hole slag suitable for preparing machine-made aggregate. ... At the same time, the entire test process is cumbersome and the cycle is long; although the crushing index is tested quickly, it needs the parent rock to be broken. The test can only be carried out after the production of coarse ...
CN113024138A
The invention discloses a production method for making sand by using a tunnel hole slag powder sandstone wet processing machine, which comprises the following steps: selecting a base material with the compressive strength of more than or equal to 80 Mpa; crushing the parent metal by a first crusher to obtain crushed stone with the particle size of less …