JPS5865898A - Start and arrival method of pipe embedding method - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] Starting and reaching 2M of controlled construction method for inspection and ground
．． ljA〇Roads and railways @ Yokota under the road and above) When burying water pipes and protection pipes for each Yuzu cable underground, it is a method of burying the pipes without digging up the ground. Excavate a shaft from the ground, excavate a shaft from the ground, surround the shaft with earth (by ¥/number), and drill a starting port and a destination port in the retaining plate.
A method called tF is carried out in which a horizontal excavation device such as a horizontal ocher screw is used to excavate underground from within a shaft while pushing the pipe forward.

In that case, if the excavated ground is above the groundwater level and does not contain water, no special problems will occur, but if the excavated ground is ground that contains groundwater such as stagnation, water and sand layers, the starting point and the ground at the time of arrival will be In order to prevent the soil and ground water from coming out of the mouth, it was necessary to use grouting, etc., to make the pond board modification method, water level lowering method, etc., and this caused the construction period to change. and caused high construction costs.

It is an object of the present invention to provide a method for starting and arriving at the conventional traction method, sweep-out method, and buried pipe method.

In other words, the J-tailing method that characterizes the present invention is vertical +; A'
Immediately before the earth retaining board (2) in (1), a fallen body (5) having a positive start (] (4) with a padskin (3) attached to the periphery is provided, and while pressing the base plate (3), After the lead pipe (6) (2) is pulled up to an appropriate length to open the curved start port (4), the buried pipe (7) is pushed and buried.

The method of reaching the end of the day is to form a wall (8) with the material to be destroyed by the propulsion of the leading pipe (6) directly in front of the ground I7 in the shaft (/a), and the wall. A steel plate (9) is attached to the Mu surface of the body (8).
) is established IIi! Push the installation pipe (7) and bury it to install the lead pipe (
6) reaches the retaining plate (a), pull up the retaining plate (2a) to an appropriate length, push the buried pipe (7) further, and attach the tip JJ pipe (6) to the place where it reaches the wall. (,?a) and vc ;1
Form the first opening (4'a) and open the opening 7 (3a).
)'r Jlil Ih The leading pipe (6) and buried pipe (7) are advanced through the access port (daa) while forming a watertight shape.

Next, the starting sequence of the present invention will be explained with reference to FIGS.

Figure 1 shows a quasi-fliif state, with a pipe 0 (4) larger in diameter than the buried pipe (7) located directly at the earth retaining m (2+) in the starting shaft (1). An entrance gasket (3) having a hole (3b) Y whose diameter is smaller than the diameter of the buried pipe (7) is provided at the periphery of the pipe starting port (,1) of the conocrete wall (5). In the figure (10) is the water supply board.

Figure 2 shows that the leading pipe (6) of the horizontal excavation device (11) is press-fitted into the hole (3b) of the packing (3), forming water W5υ, and further liquid such as water ( Is it the same as the groundwater pressure at the back of the distillation tank (2) when the tank is full? This shows a state where r'i rh is set. Note that the liquid (A) is press-fitted from the injection port or screw auger provided in the wall (5).

Figure 3 shows earth retention #j, (2) pulled up and pipe starting port (4) 7
Shows open state. In this case, the lower end of the retaining plate (2) shall not be raised above the wall (5).

4) Figure 17 shows a state in which the retaining plate (2) has been pulled up and the buried pipe (7) is pushed and buried in a water-dry state using the packing (3).

Next, the order of arrival according to the present invention will be explained with reference to FIGS. 5-g.

Figure 5 shows that the leading pipe (6) reaches the retaining plate (/a) of the shaft (/a)
2-a) (fc has been reached), the side wall (
The car vertical wall (8) of ga) is made of bentonite morkle, etc., and the horizontal wall (gb) is made of concrete. It is.

Figure 4 shows the state in which the earth retaining plate (, 2a) has been pulled up, and Figure 7 shows the state in which the retaining plate (, 2a) has been pulled up. 8) The state in which the leading pipe (6) is inserted into the wall (8) and the number of surfaces (
9) After reaching K, →l charge 27th (9) Photoconductivity of Fm plane, f! Idatsuma M ``·υ Patsukin (3a) v, r+>ge, reaching opening (lla)'fX-formation Shita qgq.

Fig. g shows the guide pipe (6) being pushed 1-1 from the reach port (4'a) while pressing the seal (3a)'Y to form a water 'f' shape.
℃）

The present invention is based on the above l! I+ (Patsukin (:'A 3 a
) to form a watertight state and the seedling root t2] (, 2a)
5j in a watertight state by raising: Moe 6 and easy to reach f = Ill fj! Because this is the starting and reaching method? The existing auxiliary methods such as ground improvement methods such as grouting and groundwater lowering method should be eliminated to shorten the construction period and reduce the amount of work required.

Therefore, there is no need to worry about contamination of the grout 7 due to mulberry solution injection or ground subsidence due to the groundwater level lowering work t1.

However, unlike the conventional method in which the earth retaining board is cut to form a starting point, an opening, and a final line, and then the upper part is buried, the present invention involves cutting the earth retaining board.

It is economical because it can be pulled up and collected without any problems, and its effects are great, such as there is no need to disturb the earth retaining board or the rear 11.

[Brief explanation of drawings]

The drawings are examples of the present invention, and the diagrams are explanatory diagrams showing the Ilf[j order of the process. (IK/a1., shaft f2) (,2a)- , retaining board
(3) (3a), Patsukin (4) 81 Launch Gate (4Za), , Arrival [] (!″1) 1. Wall (6) 1. Leading pipe (71,
, buriedゞ#'i' +810. Face/body (9),
Meeting 11! Board patent applicant Co., Ltd. 1
f (1 jump 111,141 (Figure 1 Figure 2

Claims (1)

[Scope of Claims] / A wall body having a pipe starting port with a gasket on the periphery is provided immediately before the retaining plate for sumo wrestlers in the shaft, and while pushing the gasket IF, the length of the pipe is advanced to the leading pipe starting port while pushing the gasket. A method for starting a controlled construction method characterized by pushing the buried pipe and burying it after pulling it up and opening the pipe opening. λ Immediately before the earth retaining plate in the shaft, shape the wall with material that will be cut as the leading pipe is propelled, install a steel plate on the 011 side of the wall, bury it, and push and bury the leading pipe. After reaching the earth retaining board, the earth retaining board is pulled up to an appropriate height and the buried pipe is pushed further to allow the leading pipe to penetrate the wall. Next, a guide pipe is installed on the front of the steel plate where the leading pipe will reach, and the reaching length is A method of controlled construction method, which is characterized in that the leading pipe and the 1111 installation pipe are advanced from the reaching port while forming and pressing the packing to create a watery state.