憑祥市那标水库除险加固工程灌浆施工技术方案稿.docVIP

摘要 那标水库位于凭祥市夏石镇夏石社区那标屯西面的左江二级支流上，距夏石镇政府所在地4km，距凭祥市市区15km，是一座以灌溉为主，兼顾防洪、养殖等综合利用的小（1）型水库。水库坝址以上集雨面积15km2，总库容330万m3，设计灌溉1700亩。 主坝坝基由石灰岩和页岩组成，岩石多呈中化风状，裂隙较发育，多以压扭性为主，裂隙间连通性较好，但仍出现坝基渗漏现象。据于上述地质情况和坝体、坝基出现的渗漏现象，经有关部门研究，决定对该坝体、坝基分别进行高压喷射灌浆和帷幕灌浆处理。灌浆设计由广西水利电力技术职业学院承担，我单位中标并负责施工。 关键词：小（1）型水库；二级支流；灌浆设计；左江 High pressure jet grouting in Pingxiang city the standard reservoir reinforcement engineering Student:WEI Fa-zhan Teacher: Abstract: The Nabiao reservoir is the second tributary of Zuojiang river, which located in West of Nabiao village, Xiashi community, Xiashi Town,City of Pingxiang. It is 4km from the seat of town government and 15Km from the city center! It is a small multi-purpose reservoir with the main objective of irrigation as well as food control and farming. The rainwater collection area of 15 square kilometers,the largest storage capacity of 3.3 million cubic meters and the designing irrigation area of 1, 700 mu. Main dam foundation composed of limestone and shale,the rock shaped as weathering,has a lot of of fracture，mainly in compressive tectonic regime, the fussured connection is good, but the seepage on dam foundation still happened. In consideration of the above situation, the departments concerned decided to make high pressure jet grouting and curtain grouting to the dam body and dam foundation respectively. The design of Grouting will be made by Guangxi Technical College of water Resources and Electric Engineering. Our company won the bid and will responsible for the construction. Key words: Small ( 1) reservoir; The second tributary; Grouting design; Zuojiang River 目 次 摘 要 I Abstract II 1 工程概况 1 2 库区地质情况 1 3 施工依据 1 4 施工措施 1 4.1施工总布置 1 4.2 灌浆材料准备及制浆 1 4.2.1灌浆材料 1 4.2.2制浆 2 4.2.3施工机械选用 2 4.2.4灌浆设备 2 4.2.5高压喷射灌浆施工顺序 3 4.2.6高喷灌浆施工工艺流程 3 4.2.7测量布孔及电路管路铺设准备工作 3 4.2.8造孔 3 4.2.9高压喷射灌浆的技术参数 4 4.2.10高压摆喷灌浆施工工艺 5 4.3帷幕灌浆施工工艺 5 4.3.1钻孔冲洗、裂隙冲洗和简易压水试 5 5 施工质量保证措施 6 5.1质量目标 6 5.2原材料的质量控制 6 5.3浆液搅拌的质量控制 6 5.4浆液输送及现场施工的质量控