KR970065904A - STEEL BOX-D-WALL METHOD WITH STEEL SUPPORT - Google Patents

Abstract

The present invention relates to an underground continuous wall method using a steel material support, and more particularly, it relates to a method of drilling and controlled blasting in place of a milling machine which is a rock excavator, It can accelerate to the blasting system (system), and it can respond to the reduction of the construction period and the construction cost, and it is possible to construct a more excellent and strong underground continuous wall by forming the trench without the noise or vibration and the excavation or the borehole.

Description

STEEL LOX-D-WALL METHOD WITH STEEL SUPPORT

Since this is a trivial issue, I did not include the contents of the text.

1 is a view showing a construction sequence of the present invention, Fig. 2 (b) showing perforations of a boring hole, (b) showing a trench line, FIG. 3 is a plan view of a joint cutting blasting / detonating system, FIG. 4 (b) is a sectional view, FIG. 4 is a view showing a boring hole and a torsion- (A) is a plan view of a concave-convex rectangular steel material frame complementary body, (B) is a perspective view of (A), and FIG. 6 (C) is a perspective view of a concave rectangular steel frame complement.

Claims (7)

A 100-mm hole with a spacing of 50-70 cm was continuously drilled vertically from the ground surface to the depth to be secured with two lines along the inner and outer sides of the outer D-WALL trench of the virtual building. Then, Boring of a boring, a process of perforating the ball vertically (vertically) from the surface of the earth; In this process, boring is performed in the air of 100 mm in the air, and there is a gap between each explosive and explosives. Each gun has a separate ignition system, Cutting of the trench compartments by pre-cut blasting, which is a process of forming an artificially cut surface; The installation of a guide wall for preventing the upper surface of the trench from collapsing during operation and for inserting the steel support, which is a known process for the excavation work by the CLAMSHELL; Cullet by CLAMSHELL, a known process that has been excavated by CLAMSHELL in the trench area; Cutting and controlled blasting to prevent artificial joints from crushing and collapsing due to earth pressure or fracture of excavated trenches, and to maintain and preserve the clean and beautiful installation space of continuous walls continuously. A process for making the rectangular steel-frame frame complementary to the soft ground; In the above process, a loading machine is installed by a 28 to 36 mm high-grade tube or pipe and compressed air, which is a small-sized hole made by a mechanical 6-bit perforator that proceeds simultaneously with the pulling process in the soft ground of the rectangular steel- Small-diameter buried blasting and buckling of a trench, which is a process of confronting a control wave in one row and six balls and a buck caused by the control blasting; The reinforced concrete bars are installed in the support frame of rectangular steel frame. The concrete is laid in the section of the rock layer first, and the support force is gradually lifted by the jockey or the crane to minimize the force for buoying the tolstone layer. By the load and pressure of the injected concrete As the trench wall itself is relaxed and the groundwater acts as a buoyant force along the wall surface of the supporting body, it is struck across the steel body support lattice. During the first curing process, the adjacent rectangular steel frame body is slightly pulled out, In the case of the concrete pouring, the protruding shape of the joints is interlocked, that is, when the lattice is in contact with the concrete ) Concrete piles inserted in successive compartments, which is a process of constructing a continuous wall that is pushed and pushed together so as to improve the connecting force and the lateral pressure supporting force; When the underground continuous wall concrete pouring was raised to -15M, concrete was continuously poured while pouring, and at the same time, the rectangular steel pillar was recovered or partially recovered, and a part of the concrete was poured immediately before the slab Recovery of the rectangular steel frame stub complement, which is a process of recovering the steel strip; , It is converted to controlled blasting excavation with large effect of rock breaking in excavation work in rock mass, construction period is very short without any kind of rock, type, no need for stabilizer and large excavator, There is no need to use nisshoo, and there is no waste oil due to installation of EARTH-ANCHOR. Therefore, it is possible to use construction site to the minimum, and it is possible to use boring, boring, But it is excellent in noise and vibration buffering and blocking effect by cutting and 6 free surface controlled blasting. Therefore, there is no burden of noise and vibration, and the cost and depreciation cost of material construction and depreciation are very high It has excellent wall surface support and retention due to the irregularly shaped structural material, and it is possible to define, maintain, As the width and depth of the underground continuous wall are larger, the relative length of time required for the prolongation is shorter, and the wall support is improved as well as the blasting effect and work efficiency And the concrete is not only excellent in casting and curing of the underground continuous wall, but also hardly deforms or relaxes, has almost no foreign matter inclusion, and has no post-settlement phenomenon. Since it is possible to observe the entire process, reliable construction can be achieved, and it is not necessary to maintain and control the stabilizing liquid, and there is no restriction on handling of stabilizing liquid and removal of sticks and buckets, (STEEL BOX-D-WALL) construction method with steel support. The underground continuous wall (STEEL BOX-D) according to claim 1, characterized in that rapid blast processing is performed by using a slurry explosive using a tube in the trench small diameter crushing blasting and buckling process. -WALL) Construction method. 2. The method according to claim 1, wherein the hammer dropping method is applied in parallel with the crushing blasting method in the trench small diameter crushing blasting and buckling process, D-WALL) method. The method according to claim 1, wherein bentonite, clay, and other cemented carbide are injected into the outer side of the rectangular steel material casting body in the pulling process of the rectangular steel material casting cushion complement in the soft ground, thereby making an improved water- (STEEL BOX-D-WALL) method using a steel material support. The underground continuous wall according to any one of claims 1 to 4, characterized in that, when the degree and the rock reinforcing operation are inevitable, a shotcrete or a quick-setting is applied, (STEEL BOX-D-WALL) construction method. The underground continuous wall (STEEL BOX-D-1) according to claim 1, wherein when the groundwater flow is severe before the concrete pouring work, temporary under-water treatment is first performed by a method of spraying coolant, WALL) method. The method according to claim 1, wherein, in the STEEL BOX-D-WALL method using the steel material support according to the present invention, the TOP-DOWN method is used in combination with the fast structure excavation in spite of any terrain, (STEEL BOX-D-WALL) method using a steel support that is capable of constructing an underground continuous wall in the shortest time without securing any influence and ensuring sufficient underground construction and construction period. ※ Note: It is disclosed by the contents of the first application.