33results about How to "Increase the construction process" patented technology

The invention discloses a piled anchor press-in type caisson sinking construction method. The piled anchor press-in type caisson sinking construction method is characterized by comprising the following steps that anchor piles are embedded in a soil body under the caisson designed elevation in advance; a plurality of vertical through holes penetrating the well wall are arranged on the well wall ofa caisson in the circumferential direction at intervals, anchor cables are arranged in all through holes in a penetrating manner, the lower ends of the anchor cables are connected with the anchor piles, and the upper ends of the anchor cables penetrate a center penetrating jack on the upper end face of the caisson to be fixed through anchoring nuts; and the center penetrating jack is jacked to enable the caisson to generate downward pressure, and the caisson is pressed and sinks into the soil body. The piled anchor press-in type caisson sinking construction method has the advantages that the anchor piles, the anchor cables and the center penetrating jack are used for forming a sinking construction device to provide sinking force to the caisson, limitation by a site is avoided, the method is suitable for caissons in various shapes, the caisson sinking gesture can be effectively controlled, and stress in the caisson sinking process is even and stable.

The invention discloses a grouped second liner construction method for a large cross-section tunnel. A whole toroidal second liner is constructed after being divided into 6 parts. The method comprises the following steps: 1), pouring and backfilling an inverted arch of a left lower hole; 2), pouring and backfilling an inverted arch of a right lower hole; 3), pouring a side wall second liner of the left lower hole through a lower hole trolley; 4), moving the lower hole trolley to the right lower hole to pour a side wall second liner of the right lower hole; 5), erecting a bracket in the right lower hole, assembling a right upper hole trolley, and pouring a right upper arch second liner; 6), erecting a bracket in the left lower hole, assembling a left upper hole trolley, and pouring a left upper arch second liner. According to the grouped second liner construction method, a relatively large cross section is divided into a plurality of small cross sections to carry out construction, although the construction procedures the time limit for a product are slightly increased in comparison with those of a traditional two-step construction method, the construction risk is yet reduced to a great extent, the construction safety guarantee coefficient is increased, an extremely important guide value is provided for the tunnel constructed with a CRD (center cross diaphragm) method in certain special urban environment conditions, the construction is smoothly completed on the premise of guaranteeing safety, and remarkable social benefits are achieved.