摘要：【中文】本发明属于冻结法施工领域，涉及一种冻结孔施工工艺，包括以下步骤：定位开孔并安装孔口密封装置；安装孔口压紧装置；封闭孔底部；测量；打压试验。本发明采取二次开孔工艺和跟管法安装冻结管，杜绝冻结孔施工时漏水出砂；利用阀门的开关控制出浆量，保证地面安全，不出现沉降；采用跟管法钻进技术，既减少了地层流出物的数量，也有利于控制地面沉降；利用冻结管作钻杆，冻结管之间采用套管丝扣连接，接头螺纹紧固后再用手工电弧焊焊接，确保其同心度和焊接强度，冻结管到达设计深度后密封头部。 【EN】The invention belongs to the field of freezing method construction, and relates to a freezing hole construction process, which comprises the following steps: positioning the opening and installing an orifice sealing device; installing an orifice pressing device; closing the bottom of the hole; measuring; and (5) performing a pressing test. The freezing pipe is installed by adopting a secondary tapping process and a pipe following method, so that water leakage and sand production during the construction of the freezing hole are avoided; the slurry outlet amount is controlled by using the valve switch, so that the ground safety is ensured, and the sedimentation is avoided; by adopting the pipe-following drilling technology, the quantity of stratum effluents is reduced, and the control of ground settlement is facilitated; the freezing pipes are used as drill pipes, the freezing pipes are connected by sleeve screw threads, the welding is carried out by manual arc welding after the joint screw threads are fastened, the concentricity and the welding strength are ensured, and the heads of the freezing pipes are sealed after the freezing pipes reach the designed depth.

摘要：【中文】本发明属于桥墩防护领域，涉及一种耐盐碱腐蚀性冲刷的桥墩防护装置及其施工方法，本发明设置在桥墩外侧，包括护筒，所述护筒环绕设置在桥墩外部且与桥墩紧密贴合；还包括过渡层，所述过渡层一端紧贴护筒外侧且与护筒的横截面尺寸、形状一致，另一端紧贴基础且与基础的横截面尺寸、形状一致，过渡层的截面尺寸从其一端线性过渡至另一端。本发明对桥墩腐蚀源进行物理隔绝，可以起到较好的防腐蚀效果的同时完全不影响桥墩受力；本发明使得桥墩具有抗冲刷性能；本发明可以通过对护筒破坏形态的检测达到对桥墩腐蚀程度的无损检测的目的；本发明在桥墩混凝土浇筑期间还可以起到替代浇筑模板的作用。 【EN】The invention belongs to the field of pier protection, and relates to a pier protection device resistant to saline-alkali corrosive erosion and a construction method thereof, wherein the pier protection device is arranged outside a pier and comprises a protection cylinder, and the protection cylinder is arranged outside the pier in a surrounding manner and is tightly attached to the pier; the transition layer is arranged, one end of the transition layer is tightly attached to the outer side of the pile casing and is consistent with the cross section size and the shape of the pile casing, the other end of the transition layer is tightly attached to the foundation and is consistent with the cross section size and the shape of the foundation, and the cross section size of the transition layer is linearly transited from one end of the transition layer to the other end of the transition layer. The invention can physically isolate the pier corrosion source, can play a better anti-corrosion effect and simultaneously does not influence the pier stress completely; the invention enables the bridge pier to have the anti-scouring performance; the method can achieve the purpose of nondestructive detection of the corrosion degree of the pier by detecting the damage form of the protective cylinder; the invention can also play a role in replacing the pouring template during the pouring of the pier concrete.

摘要：【中文】本发明涉及一种桩基钢筋笼安装对中器、结构及安装方法，属于建筑中土层或岩石的钻进技术领域。对中器包括直条状量尺，两根量尺水平且呈上下重叠设置，两根量尺的中部通过竖向转轴可转动连接以使两根量尺可沿竖向转轴转动至呈十字交叉状，竖向转轴位于两根量尺的长度方向的中心位置；量尺的两端分别可滑动连接有定位钮，定位钮可沿量尺的长度方向滑动并被固定以便调节位置，定位钮呈竖直向下凸出于量尺下表面；量尺上的两个定位钮以竖向转轴中心对称。使用时，将对中器连接在钢筋笼上端四根竖向钢筋的套管上，呈水平，钢筋笼的上端中心位置通过对中器的竖向转轴的位置获取；进而便于调整钢筋笼上端中心与桩孔孔口中心的偏差至符合设计要求。 【EN】The invention relates to a centralizer, a structure and a method for installing a pile foundation reinforcement cage, and belongs to the technical field of drilling of soil layers or rocks in buildings. The centering device comprises straight strip measuring rulers, the two measuring rulers are horizontal and are overlapped up and down, the middle parts of the two measuring rulers are rotatably connected through a vertical rotating shaft so that the two measuring rulers can rotate along the vertical rotating shaft to form a cross shape, and the vertical rotating shaft is positioned at the central position of the two measuring rulers in the length direction; the two ends of the measuring scale are respectively connected with a positioning button in a sliding way, the positioning buttons can slide along the length direction of the measuring scale and are fixed so as to be convenient for adjusting the position, and the positioning buttons vertically and downwards protrude out of the lower surface of the measuring scale; two positioning buttons on the measuring tape are in central symmetry with the vertical rotating shaft. When the centering device is used, the centering device is connected to the sleeves of the four vertical steel bars at the upper end of the steel reinforcement cage and is horizontal, and the central position of the upper end of the steel reinforcement cage is obtained through the position of a vertical rotating shaft of the centering device; and then be convenient for adjust the deviation of steel reinforcement cage upper end center and stake hole drill way center to accord with the design requirement.

摘要：【中文】本发明属于冻结法施工领域，涉及一种冻结法通道施工工艺，包括以下步骤：开挖；初期支护；喷射混凝土；防水层施工；立模；浇筑施工。本发明安全可靠性好，可有效的隔绝地下水；适应面广：适用于任何含一定水量的松散岩土层，在复杂水文地质如软土、含水不稳定土层、流砂、高水压及高地压地层条件下冻结技术有效、可行；灵活性好：可以人为地控制冻结体的形状和扩展范围，必要时可以绕过地下障碍物进行冻结；可控性较好：冻结加固土体均匀、完整；污染性小：“绿色”施工方法，符合环境岩土工程发展趋势。 【EN】The invention belongs to the field of freezing method construction, and relates to a freezing method channel construction process, which comprises the following steps: excavating; primary support; spraying concrete; constructing a waterproof layer; erecting a mould; and (5) pouring construction. The invention has good safety and reliability, and can effectively isolate underground water; the application range is wide: the freezing technology is suitable for any loose rock-soil layer with certain water content, and is effective and feasible under the conditions of complex hydrogeology such as soft soil, water-containing unstable soil layer, quicksand, high water pressure and high ground pressure stratum; the flexibility is good: the shape and the extension range of the frozen body can be artificially controlled, and the frozen body can bypass underground obstacles for freezing when necessary; the controllability is better: the frozen reinforced soil body is uniform and complete; the pollution is small: the 'green' construction method accords with the development trend of environmental geotechnics.

摘要：【中文】本发明公开一种重复劈裂注浆的预应力锚索结构及其施工方法，锚索结构由外向内依次为自由段、锚固段和钻孔加长段，包括一次注浆管、二次注浆管、对中支架和钢绞线；所述一次注浆管设在对中支架中心，尾部管口位于锚固段底端；所述二次注浆管设置两根，固定连接在对中支架的外侧，其中一根二次注浆管的尾部管口位于距离锚固段底端1/3处，另一根二次注浆管的尾部管口位于距离锚固段底端2/3处，所述二次注浆管上开设有注浆孔；所述对中支架沿锚索结构间隔设置，所述钢绞线设在对中支架外侧。本发明采用一次注浆管设在锚固结构中间，两根二次注浆管相对设在锚固结构外侧，实现多次重复劈裂注浆，有效提升提高锚固体的承载力，提高经济效应。 【EN】The invention discloses a prestressed anchor cable structure for repeated splitting grouting and a construction method thereof, wherein the anchor cable structure sequentially comprises a free section, an anchoring section and a drilling lengthening section from outside to inside, and comprises a primary grouting pipe, a secondary grouting pipe, a centering bracket and a steel strand; the primary grouting pipe is arranged in the center of the centering bracket, and the tail pipe orifice is positioned at the bottom end of the anchoring section; the two secondary grouting pipes are fixedly connected to the outer side of the centering support, the tail pipe opening of one secondary grouting pipe is located 1/3 away from the bottom end of the anchoring section, the tail pipe opening of the other secondary grouting pipe is located 2/3 away from the bottom end of the anchoring section, and grouting holes are formed in the secondary grouting pipes; the centering support is arranged at intervals along the anchor cable structure, and the steel strand is arranged on the outer side of the centering support. According to the invention, the primary grouting pipe is arranged in the middle of the anchoring structure, and the two secondary grouting pipes are oppositely arranged outside the anchoring structure, so that repeated split grouting for multiple times is realized, the bearing capacity of the anchoring body is effectively improved, and the economic effect is improved.