AnkrajAdvance small conduit and pipe shedDifferent functions in use

including clay cement slurry.

(the density of steel pipe is 85kg/dm calculation formula: w = 0.02466 (D-S) s where: W - theoretical weight of steel pipe per meter

Clay grouting: the slurry material is mainly clay, kg / M; D - Nominal outer diameter of steel pipe, mm; S - nominal wall thickness of steel pipe, mm.

Ankraj.Appropriate measures shall be taken to prevent surface water,AnkrajAdvanced small conduit processing, curing water and garbage from falling in. When necessary, a sump shall be set, which can be set in the basement according to the above method, or set outdoors as a temporary facility. Usually, we use the waterproof scheme between the grouting pipe and the water surface or before, and there are many methods for the grouting pipe to stop water in advance. It should be noted that the design unit should participate in the review of the construction organization design of the basement, so as to determine a complete implementation scheme of advanced water stop before the excavation of the foundation pit and the pouring of the cushion. Otherwise, the design modification requirements will be put forward only when problems are found in advance water stop during construction, which will affect the integrity and rationality of the whole water stop scheme.

● advantages: Simple installation, complete set; The grouting pipe can be intercepted at the construction site according to the actual required length of the joint (it is recommended that the longest grouting outlet length should not exceed 6m); No special installation equipment is required; Grouting time can be arbitrarily selected; When grouting is carried out internally under proper pressure, the grouting pipe fluid can keep filling the whole pipe evenly; The system allows grouting under relatively low pressure; The grouting pressure is 0.2-0.4mpa.

. The installation will not affect the characteristics of the building grouting pipe; The installation or grouting process will not harm the concrete; Permanent sealing can be ensured after grouting; If there is no leakage, grouting is not allowed. Product advantages: Simple installation, complete set. No special installation equipment is required, and the cut-off length can be prepared on the construction site according to the actual requirements of the joint (it is recommended that the longest grouting outlet length should not exceed 6m). The grouting time can be arbitrarily selected.

There are mainly water glass calcium chloride slurry,AnkrajTunnel combined hollow anchor manufacturer, water glass fluorosilicic acid slurry, acidic water glass slurry HS water glass (acidified water glass) slurry and SS water glass (silica sol) slurry [4].

Professional sales, absolute sound detection tube price advantage,AnkrajLeading small conduit manufacturer, providing the most cost-effective products.

The specification and weight of the grouting pipe are actually very well understood. It is the approximate method for calculating the weight of the grouting pipe per linear meter, and it is also the only correct algorithm that can be found now: the weight of the grouting pipe = 0.0246615 × (outer diameter of grouting pipe - wall thickness of grouting pipe) × Wall thickness of grouting pipe.The normal writing should be: w = 0.02466 * s (D-S), where d = outer diameter s = wall thickness.

Sometimes the grouting pipe is overlaid on the two sides of the horseshoe surface. Adjust the cooperation specifications of the grouting pipe at the distribution nozzle. How to avoid grout leakage during installation of grouting pipe?

[0016] a fast cutting device in the hole of a underground grouting pipe, as shown in Fig. 1, the fast cutting device in the hole mainly consists of a fixed cutting device 2 (as shown in Fig. , a tension blade device 3 and a cutting rotating device [0017] the tension blade device 3 is sleeved in the cutting rotating device 5, and screw threads are respectively set on the outer surface of the cutting rotating device 5 and the upper end of the tension blade device 3, The tension blade device 3 and the cutting rotating device 5 are connected by threads. The end of the tension blade device protruding from the cutting rotating device is provided with a tension blade nut 4, as shown in Fig.

Focus on Development.On site inspection of grouting pipe: Before on-site inspection, measure the delay time from the sound wave monitor to the receiving system. And calculates a sound time correction value.

It can be widely used for one-time multiple grouting pastes.

The distance between measurement points is 40cm, and when abnormalities are found, it is encrypted to 20cm.

1 Characteristics: the grouting pipe is divided into disposable grouting pipe (ccll-y grouting pipe, qdm-it grouting pipe, ccll-y full section grouting pipe) and repetitive grouting pipe (ccll-d grouting pipe, ccll-d full section grouting pipe). The disposable grouting pipe can only be grouted once and cannot be reused. The repetitive grouting pipe can be reused for many times, and the core and outer wall of the pipe need to be cleaned after each use.

Latest quotation.Grouting classification (I) grouting construction before and after the exposure of water bearing rock and soil layer is classified as follows: Pre grouting: the grouting works carried out before the shaft, tunnel basement and other structures are dug or when they are close to the aquifer are called pre grouting. Ground pre grouting and working face pre grouting are common in the coal industry. The pre grouting method is used for water plugging and reinforcement of rock and soil to prevent accidents in advance.

2 performance of grouting pipe the grouting pipe is light in weight, has strong bite force with soil or gravel, is acid-base resistant, corrosion-resistant, and it can also be overlapped (the grouting pipe with overlapping buckle has been developed and can be connected without other materials), and the bending effect during construction is small. However, the grouting pipe has low hardness, and mechanical scars such as scratches and crushed stones will produce stress concentration, which will reduce the overall mechanical properties of the grouting pipe and the grouting pipe.

During concrete construction, special personnel shall be assigned to take care of the reserved and embedded reinforcement, formwork and water and electricity to prevent deformation and displacement. In addition, the calendering of the component surface and the roughening of the laminated plate surface shall be carried out in time.

Ankraj.A 6-10m long orifice pipe is generally installed at the opening of the grouting hole to prevent possible hole collapse, and to play a guiding role in drilling. During grouting, it is used to install an orifice closing device to prevent grout leakage.

[0018] the fixed cutting device 2 is mainly composed of a cutting blade 6 and a pulley The cutting blade 6 and the pulley 7 are respectively connected to both sides of the cutting rotary device 5 through slots. The cutting blade is shown in Fig.

After the test of each group of test tubes is completed, the test points shall be sampled for 10% at random, and the relative standard deviation of sound time shall not be greater than 5%; The relative standard deviation of amplitude shall not be greater than 10%.