The hottest multifunctional fine aggregate concret
2022-10-24- Detail
Successful development of multi-functional fine aggregate concrete pump
Guide: whether the construction of headrace tunnel is drilling and blasting excavation, or TBM excavation, shotcrete and anchor support, pressure grouting, karst tunnel backfilling, water stop and plugging are all essential work links, and the workload is also quite heavy. To ensure the project quality and construction period, backfill construction equipment with good functions should be available. But the construction practice shows that
whether the construction of headrace tunnel is drilling and blasting excavation or TBM excavation, shotcrete and anchor support, pressure grouting, karst tunnel backfilling, water stop and leakage stoppage are all essential work links, and the workload can make the main and auxiliary machines work together; Detect and adjust the temperature, pressure and flow of plastic in the extruder; It is also quite heavy to realize the control or automatic control of all units. To ensure the project quality and construction period, backfill construction equipment with good functions should be available. However, the construction practice shows that there are many disadvantages in the grouting pump and ejector equipment provided by the construction machinery production enterprises to the market, which can not fully meet the actual needs of construction
The development of dxhb-10 multi-functional fine aggregate concrete pump overcomes the shortcomings of piston grouting pump and ejector in mechanism, and can meet the actual needs of construction. The innovations of the concrete pump include the following aspects: first, one machine is multi-purpose. The equipment integrates the functions of grouting pump and jet machine. After transformation, it can be equipped with TBM tunneling construction to speed up the construction progress. Second, high-grade mortar or fine aggregate concrete with different proportions can be poured. The viscosity range is wide (80 ~ 320pas), which is more than 30% lower than the cost of pouring net slurry. The solidifying body is strong. 1. When users choose to buy, they are used to do simple tensile tests and shrinkage tests. The core detection strength is 40pas, and the uniformity performance is good. However, the piston grouting pump cannot achieve such effect. Third, double liquid grouting is evenly mixed, and the effect of plugging and water stop is good. The pump relies on the special pressure mixing valve to complete the continuous feeding, rather than the ball valve body used in the piston pump, which is open and closed, and the intermittent feeding, so as to avoid the problems of large pulse vibration and uneven mixing. Fourth, large displacement and strong continuity. The working capacity of a single machine is 3 ~ 5 times higher than that of the piston pump during backfilling. It is a powerful equipment during the rush period, which can comprehensively reduce the construction cost. Fifth, fine aggregate concrete can be sprayed completely wet. The spraying speed is uniform and dense, and a large amount of plastic fibers can be added (reducing rebound and improving the crack resistance of concrete). The rebound is 10%, no pollution, no dust, and the production efficiency is 10m3/t, which has reached the level of wet spraying of finished concrete of similar products in the worlddxhb-10 multi-functional fine aggregate concrete pump has been successfully applied to the following projects: the tailrace tunnel construction of dingcunba hydropower station project in Ya'an City, Sichuan Province, with 1900m3 backfill mortar completed; 7000m3 backfill grouting has been completed for the construction of 1 ~ 3 tunnels in the international bid for diverting water from the Yellow River; The international standard tunnel 7 of the Yellow River Diversion connection section has completed the backfilling mortar of 8000m3; Anti scouring wall project on the left bank of Shuibuya. Practice has proved that the advanced, economical and practical dxhb-10 multi-functional fine aggregate concrete pump is a powerful equipment for underground tunnel drilling and blasting excavation, wet shotcrete, backfill grouting and supporting more comprehensive TBM excavation and backfill. One day before Liansu announced its revenue figures
- ·‘Bog breath’ studied with satellites in new peatla
- ·Emblematic areas of Puerto Pollensa - Today News P
- ·Hopes for bank holiday sunshine ruined as Met Offi
- ·CDSBEO enrolment expected to increase - Today News
- ·Slow-downs coming on Oshawa streets - Today News P
- ·Brian Taylor- Nicola Sturgeon is thinking long – b
- ·Paula Matthewson- Coalition’s women problem goes f
- ·International court upholds Mladic life sentence f
LINK
Copyright © 2011 JIN SHI